采矿工程专业毕业设计外文文献翻译(中英文翻译)

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采矿专业毕业设计外文资料翻译--千万吨级矿井综采工作面的开采工艺性评价

采矿专业毕业设计外文资料翻译--千万吨级矿井综采工作面的开采工艺性评价

英文原文Fuzzy evaluation on coal seam geological condition of coal face inten million ton MineAbstract:Based on coal seam geological condition in Jisan Mine,quantitative evaluation on concrete coal seam geological condition is made by using fuzzy evaluation with the view of coal mining and coal face production.The evaluation content and its realization of coal seam geological condition,the structure and the index system of evaluation factor,the membership functions and weights of evaluation factor ,evaluation model and reliability are expounded in detail ,eighty-two coal face that will be exploited is classified,Fuzzy evaluation is the basal work to select coal mining technology and ensure a ming running efficiently,safely and steadily.Key words:fuzzy evaluation;membership function1 INTRODUCTIONWith the development of mining ,the difference of coal seam geological conditions will affect the suitability of coal mining technology and coal face outputs ,i.e. qualification and economic indicator.To ensure a mining running efficiently,safely and steadily ,coal seam geological conditions must be known roundly and detailed .Fuzzy evaluation on coal seam geological conditions is a evaluation on concrete coal seam geological condition with the comprehensive view of coal mining. The main characteristic of evaluation is that a coal face is a evaluation cell.The aticle tells of fuzzy evaluation on coal seam geological conditions in Jisan Mine.2 CONDITIONS OF SEAM AND GEOLOGYThere are three sections that are exploited in Jisan Mine,i.e. north section﹑east section﹑west section,they belongs to Sanxia coal seam. Sanxia coal seam is at the bottom of Shanxizu,mean thickness of coal seam is 5.26 metres,from east to west in Mine,thickness of coal seam reduce from 5 metres to 3.5 metre. Rock character of roof is sandrock or siltite,rock character of bottom is siltite or thin sandrock. There are many faults in Jisan Mine,there are fourteen faults that their drops are bigger thantwenty metres,and there are many smaller faults. Based on the coal seam geological conditions,strike longwall mining method in fully mechanized coalface is adopted.3 FACTORS AND INDEX OF EV ALUATION3.1 STRUCTURE OF EV ALUATION FACTORSAccording to the principle of system,feasibility and simplicity,based on coal seam geological characteristic ,the structure of evaluation factors is figure 3.1.It consists of seven compound factors and eleven smaller factors,these factors are quantified by fault density q1﹑fault length exponent q2﹑fault fall exponent q3﹑variation of coal seam and band coefficient γ﹑seam thickness m﹑seam angle α﹑seam hardness R﹑immediate roof hardnessσ﹑ratio of immediate roof and seam mining thickness N﹑false roof thickness h0﹑immediate bottom hardness q c﹑coal face length l and coal face advance length s.Figure 3-1 structure of evaluation factors of coal face3.2 INDEX SYSTEM OF EV ALUATIONExplanation of eleven smaller evaluation factors is as follows:(1)fault effect:describing fault effect on mining needs three index,faultdensity-fault number in unit area;fault length-sum of fault length in unit area;fault fall exponent-ratio of fault fall and seam thickness.(2) variation of coal seam and band coefficient : ratio of seam thickness sample standard deviation and seam thickness mean. (3) Seam thickness : seam sample thickness mean. (4) Seam angle : seam sample angle mean.(5) Seam hardness : seam compression strength.(6) Immediate roof hardness : immediate roof compression strength. (7) Main roof holding power :(8) False roof effect : false roof thickness.(9) Immediate bottom hardness : immediate roof compression strength. (10) C oal face length (11) C oal face advance3.3 MEMBERSHIP FUNCTIONS OF EV ALUATION FACTORSThe membership function of evaluation factor is the quantitative description on fuzzy relationship between the change of a geological factor and the mining effect. Membership function is the foundation to build a fuzzy evaluation model.Adopting statistic analogism method , method of undetermined coefficients and heterogeneous fuzzy statistic method , membership functions are obtained as follows : (1)membership function of fault effectμa =2/ (1+exp (0.0018+0.042×q 1+0.064×q 2+0.00071×q 3))(2)membership function of variation of coal seam and band coefficient(3)membership function of seam thickness⎪⎩⎪⎨⎧><≤+⨯-<=5.01.05.02.06.132.00.1)(000000h h h h h h μ(4)membership function of seam angle⎪⎩⎪⎨⎧≥<≤<=3N 1.03N 0.31.8 + N) Exp(-0.29 1.9-0.3N 0.05(N)μN(5)membership function of seam hardness0.17.2()0.51ln 0.917.2421.042c c R c c c c R R R R R μ<⎧⎪=⨯-≤≤⎨⎪>⎩⎪⎪⎩⎪⎪⎨⎧<≤>≥-<≤+⨯+⨯<=-8040403002.08.10.1301671.0012.01069.1ln(164.0)(24σσσσσσσσμσ(6)membership function of immediate roof hardness100010001001000.17.2)ln(5.00)(≥≤<≤⎪⎩⎪⎨⎧-=s s s s s S μ(7)main roof holding power⎪⎪⎪⎩⎪⎪⎪⎨⎧<≤+-<≤+-<≤+-<≤<≤=5036528.10286.036180.101389.018125.104167.01260.1631667.0)(R R R R R R R R R R R μ(8)false roof effect⎩⎨⎧≥<≤⨯-=25.0025.00)(21)(5.0γγγγμγ(9)immediate bottom hardness⎪⎪⎪⎪⎩⎪⎪⎪⎪⎨⎧≥<≤-⨯<≤+⨯<≤-⨯<≤-⨯<≤-⨯=1500.1150130275.00085.0130100483.0000667.0100805.00125.080607.0015.060401.0005.0)(l l l l l l l l l l l l L μ (10)coal face length⎪⎪⎪⎪⎪⎩⎪⎪⎪⎪⎪⎨⎧≥<≤<≤+⨯-<≤<≤-⨯<≤+⨯<≤-⨯<≤+⨯=0.50.10.55.470.05.45.370.12.05.38.20.18.25.252.19.05.20.243.012.00.24.123.045.04.10.105.025.0)(m m m m m m m m m m m m m m m μ (11)coal advance length⎪⎪⎪⎪⎪⎩⎪⎪⎪⎪⎪⎨⎧≥<≤<≤+⨯-<≤<≤-⨯<≤+⨯<≤-⨯<≤+⨯=0.50.10.55.470.05.45.370.12.05.38.20.18.25.252.19.05.20.243.012.00.24.123.045.04.10.105.025.0)(m m m m m m m m m m m m m m m μ 3.4 WEIGHTS OF EV ALUATION FACTORSWeight of evaluation factors is a quantity that show relative importance of per factor in system ,it is the key to unify systemic structure and function.Coam seam geological evaluation of coal face ascertains weights of evaluation factors by AHP.AHP is a easy method to quantify the quanlitative event.Appliacation of AHP needs five steps :building hierarchical model 、constructing judgement matrix 、single hierarchy collation and consistency check 、total hierarchy collation 、consistency check of total hierarchy collation.Comfirmatiom of judgement matrix is the key to use AHP ,value of judgement matrix is the quantitative description on relative importance of per factor ,the valves are one to nine and their reciprocals.Table1 shows the value ,Table2 to 4 show judgement matrix ,Table5 shows weights of evaluation factors.Figure 3B6~C judgement matrix3.5 FUZZY EV ALUATION MODELCoal seam geological conditions are multilayered evaluated by fuzzy evaluation model,fuzzy evaluation model images single factor evaluation value to total evaluation value by certain algorithm,whether propertis of evaluation sample is bad orgood are assured by total evaluation valve ,in order to comprehesively consider effect degree of per factor ,weighted avarage evaluation model is used ,the model :∑==⋅=ni ij i j m j r W b 1.....,1,2, In fomula :b j ——evaluation valve ; W i ——weight matrix 。

矿业工程科技文献翻译部分

矿业工程科技文献翻译部分

矿业工程科技文献翻译部分1) It is a fine summer’s day.那是一个晴朗的夏日。

2) The American family is dying because of the soaring divorce rate.由于离婚率直线上升,美国的家庭正在消亡。

3) Studies serve for delight, for ornament, for ability. Their chief use for delight, is in privateness and retiring; for ornament, is in discourse; and for ability, is in the judgement and disposition of business.读书足以怡情,足以博彩,足以长才。

其怡情也,最见于独处幽居之时;其博彩也,最见于高谈阔论之中;其长才也,最见于处世判事之际。

4) What works under one set of conditions at one time must work under the same conditions at other times.在一个时期的一定条件下起作用的东西,在另一些场合的相同条件下也必须起作用。

5) Influenza [influ’enz?] is spread in the same manner as a common cold.流感的传播方式和普通感冒相同。

6) A dry cell is dry only in the sense that there is no liquid in it.干电池之所谓干,只是就其中没有液体而言的。

7) There seems to be no limit to how hot things can get.物体能热到什么程度(或:物体能变得多热),似乎没有限度。

采矿工程中英文对照外文翻译文献

采矿工程中英文对照外文翻译文献

中英文对照外文翻译文献(文档含英文原文和中文翻译)译文:新技术和新理论的采矿业跨世纪发展摘要:煤炭产业需要更长远的发展,对工作中所讨论的热点在工业中出现新的理论和高科技成功使用在二十世纪末是最美好的,作为被关心的问题需要较快一步的发展,在20世纪中后期产生的新型、高速的新技术是最有吸引力和标志性的,即使在所有行业中不同的冲击变得起来越相关以及部门间彼此合作并明确地叙述许多新的理论,煤炭行业的新科技和新理论是不可避免的,并且包括一切的不可能性。

作者在这篇文章中阐述了他关于采矿学的发展问题的意见,举出了许多令人信服的事实,并对大部分新的情况予以求证。

关键字:采矿工程,矿业产业, 矿业经济学,新技术和高科技1.采矿在国民经济中的重要性今天,科技世界的发展已经引起了对采矿空前的不容忽视,空间工程,信息工程,生物工程和海洋工程的发展,新能源的发现和研究与发展以及新原料在目前和将来逐渐地改变着人类生活的每个方面。

“科学技术是第一生产力”指出了新科技在国民经济的中扮演了重要的角色。

在全球的一些大的国家中,互相竞争为的是努力探测外部的空间,我们不应该忘记基本的事实:有超过五十亿个人生活在地球上。

想要保住地球上的人类,我们必须做到以下四个方面:也就是营养物,原料,燃料和环境。

营养物主要是空气、水、森林、谷物和各种植物,它们都是来自于自然。

原料有铁、铁的金属,稀罕的金属,宝贵的化学的原料和建材的金属。

燃料如:煤炭,石油,天然气,铀,放射性金属元素和其他的发光要素。

这些也在自然界中发生。

最后一种是靠人类来维持的生态环境。

在上述中三个必要的物质中,原料和燃料从地球表面经过采矿学取出服务人类。

生态学的环境和采矿已及上述的三个必要的财产抽出有莫大的关系。

然而,随着新技术和它们进入煤炭行业成果的提高,逐渐使它由朝阳产业变成当日落业并逐渐地褪色消失。

如采矿产业是最古老的劳工即强烈传统的产业,因此,那里没落是在一个民族的特定部份需要的印象而且要再作任何的更高深的研究,并在此之上发展采矿。

采矿工程毕业设计外文翻译----新技术和新理论的采矿业跨世纪发展

采矿工程毕业设计外文翻译----新技术和新理论的采矿业跨世纪发展

原文:DEVELOPING OF TRANS-CENTURY MINING SUBJECTWITH NEW TECHNOLOGY AND NEW THEORYAbstract:Mining subject needs further development and towards which the development would being the problems concerned over all along and to be succeeded with the public good enough attention to discussions to reach an identify of views admittedly. The emergence in succession of new-and-high techs in the mid-and late twentieth century is perhaps the most fascinating and epoch-marking event that has given to all the subjects certain but different degrees of impacts to become more closely interrelative and interdepartmental each other and feature specifically from that of the past for their entirely new conceptions in the result of formulating many new theories,new technologies and new subjects that mining subject is inevitably and unexceptionally the one inclusive. The acuter gives in this paper his opinion regarding the problem of the development of mining subject proving with many convincible facts and most informative new idea,Key words: mining subject; mineral industry; mineral economics; new-and-high tech.1 The Importance of Mining Industry in the National EconomyToday, it has been paid unprecedented attention to the development of technology worldwide.The advance of space engineering,information engineering,biological engineering and marine engineering,the discovery and the research and development of the new energy and new materials increasingly change every aspect of human life both at present and in the future.The words "Science and Technology being the First Production Force" has fatherly and penetratingly pointed out the important role of new technology in the course of national economy construction.In the competition of several big countries in the world striving for the exploration of outer space,one should not forget the essential fact that there are more than five billion people living on the earth. To assure the survival of mankind on the earth,four essential requirements should be considerably fulfilled,namely,the nutrients,materials,fuels and the environment. The nutrients mainly are air,water,forests,grains and miscellaneous plants,all of which are acquired from the nature. The materials refer to iron,ferrous metals,rare metals,precious metals,chemical raw materials and building materials. The fuels cover coal,petroleum,natural gas ,oil shale,uranium,thorium and other radioactive elements. These also occur in nature. The last one is the ecological environment depending on which mankind lives. In the above three essential substances,the materials and fuels are through mining engineering extract from bining industry is a conventional industry, however,with the advance of the new technologies and the introduction of them into mining industry which will be reduced of itself final1y- a technology-intensive industry. The emergence of highly mechanized and automated mines and robot-operated manless working face marks the renewal and substitution of technologies of mining industry and proves the fact that mining industry.However,is conventional industry, but not sunset industry. As long as mankind live on the earth,mining industry will last forever and never decline and fall,instead,as man's living demands increases,the output of fuels and raw materials will be increased by a big marg and mineral industry will still gain a much greater development.2The Object of Study of the Mining Subject2. 1 The Tasks and the Special Features of 1liining SubjectHistorically and the Special Features of 1liining Subject the development of mining subject has its own course of change and development both at home and abroad. Since mining industry is closely related with geology, metallurgical and energy industry consequently in the subject relationships,they are interrelative and interdepartmental each other. As mining subject branch of science dealing with the extraction and utilization of minerals and the resources from inside the earth,on the sake of the complexity and multiplicity of the rock mass and mineral resources of great nature which makes the basic theories of mining subject being more complicated than that of any other engineering subject. Especially in the following aspects featured: the objects of mining subjects are the ore bodies occurred in nature that they differ each other in structure,quality,and property.3Five Urgent Requirements on the Tendency towards the Trans-century Development of Modern Mining Subjects3. 1 Renewing the Knowledge of Strata 11ZechanicsAbove all rock and or ore properties are the prerequisites of the subjects of the study of mining engineering regardless of whether it is excavation,comminuting or strata ,stability strata mechanics is required to make the study along two aspects:(1)From the micro-study to the macro-study(2) The study of the contradictions between rock-breaking and rock stability in the course of mining and excavating. Therefore it is a very broad field of academic studyComparing with common solid materials,rocks are featured structurally for their non-homo.3.2 AnewKnowledgeofMiningEngineeringSystem-the"hian-Nature-Rfachine" Systern ,System engineering had found in recent years very rapid development,and wide applications m mining engineering. Been modeled after the "man-machine’s Generally, mining systems engineering considerably studies had system model used in aerospace engineering and other departments of en Bering. In recent years,Prof. Fettwice of the Montan University of Austria and the author of this paper both had put forth the opinion that the objects of mining engineerm8 Machine are ore bodies and rock strata, the activities of mining engineering are those played with by the man in getting the knowledge of the environment underground.3.3 Reforming the Conventional Mining Technologies and Industries withModern New technologiesThe major policy of China of reforming the conventional industries with new-and-high techsof great importance and no doubt to its conventional industries.The essential features of new-and-high techs are highly technology-intensive.Just as discussed in the beginning of this paper,speaking with respect to the reforming of mining engineering and coal industry with new-and-high techs,it is essential to introduce merely those ones which enable to make these two industries swiftly commercialized. Since mine is concerned with the natural surroundgas of ground,the newtechs,however,as those used in aerospace engineering in the care for "going up to sky" when used for 0gettingdown intothe earthin mining engineering practices evidently are needed to make completely different modalities. In 1080s,Berlin Poly }ethnic university had applied optic fiber telecommunication technology- in underground mining,giving rise to abundant interference problems of earth magnetism,electricity and light wave, and the insulation of strata to the conduction electronic waves. The BPM man had the problems s finally tailed,however,through a long time of research work. Therefore,to have the minerals industries well prepared technically for the 21st century,to paying great attention the following fields of study are required3.3.4Making the study of market-economy mineral economics theoriesFor a long time that the mineral economics theory in China had been given distinct features of planning economy,while in the theory itself,mineral resources were not recognized ascommodities and had no prices. Consequently,even though the mineral products had pricesbut were distorted ones making all national mining enterprises non-profitable and to exist depending on governmental policy-subsidization. Now the country, however,has changed intosocialist market economy, most mineral enterprises radically cannot accommodate themselvesto this new situation,in particular,from the point of view of "Enriching the peasants" policyto put forward to the exploitation of mineral resources,the near-term policy of the so-called“wherever there’ water,flow it fast",which had made the mineral industry from the repeated view-point of and the enriching the Pleasants policy, has caused the price deficit due to lowselling-price of minerals into even worse situation of disorder,no-restraint and anarchy ofscrambling for extracting the mineral resources putting the mineral industries in a tight spot unabling to feed themselves. Under this circumstance,the importance of undertaking the softscience research right now becomes more conspicuous to the mineral industries than ever before. One can predict that had the theoretical study of mineral economics theory been made ,portent break troughs,that it would radically change the face of our mineral industries.3.5 Relationship between Mineral Engineering and Natural EcologyMining engineering is the removal of rocks and minerals to the surface throughexcavations from underground deep in the earth or from the ground surface leaving the excavated space so formed. Every turn meters Surface every year subsidence in China. of the commodity flow of mining products reaches billion cubic Obviously it has caused many negative effects,for example:(1)uses of waste rock which results in the damages of farming lands and houses;(2) Large volrefuse and tailings occupy large area of land; and (3) Coal and oil burning products give off waste materials,such as exhaust gas,waste liquids,and solids and pollute the environment. In China,80 percent of 1. 1 billion tons of coalburned as fuel,from which,dust,sulpher and the of NO2and CO2 and the effective less heating effect seriously constitutes a menace to the ecological environment of China and the neighboring countries.4Suggestions opment of to the Science and Technology Circles of the Nation for the Develop-the Mining Subject4.1 An Unguent AppealNo doubt the "flying up into the sky" technology is the one most advanced,however,thegetting down into the earth" technology in mining engineering is no less complex,and even more difficult to pin down. It is no wonder that people consider that mineral engineering beingmuch simpler and pay less attention for lack of the knowledge of the resulting in the low rate ofmineral recovery and low rate of mineral extracting. For this country, but to spend a greatmany of valuable hard currency to import those actually need not to import raw materials andelse,naturally this is not favorable to the development of national economy. Hoping the science and technology circles,in particular their leading departments,renewing their recognitions to this awkward situation,and give necessary support to the urgently-needed topics of research studies of the mineral industries.4.2 National Resource PolicyNational resource policy concerns the future for many generations.Hoping the government population institutions relevant learn Iron the lesson of the past population policy,to take measures as early as possible to have the print up of mineral resources centralized.4.3 Mineral Investment PolicyThe investment policy and the set up of mineral industries should be dire; iron: tm common industries to assure in the long run the first energy supply 1vit} necessary and appropriate support.4.4 Make Ready the SuccessorsTo make ready the successors for the mineral industries and the development of the mining subjects,suggesting to give preferential treatment to the university.Admissionssystem and the recruitment of mineral workersand set mineral science.Foundation as an important subject independent from the foundations of those.Basic science in the natural science foundation.The aim of writing this paper is to hone that in the tonguingA of this centuryminim subject in China will have a new prosperous development with the of new technology to theory under the guidance of the national science policy.译文:新技术和新理论的采矿业跨世纪发展摘要:煤炭产业需要更长远的发展,对工作中所讨论的热点在工业中出现新的理论和高科技成功使用在二十世纪末是最美好的,作为被关心的问题需要较快一步的发展,在20世纪中后期产生的新型、高速的新技术是最有吸引力和标志性的,即使在所有行业中不同的冲击变得起来越相关以及部门间彼此合作并明确地叙述许多新的理论,煤炭行业的新科技和新理论是不可避免的,并且包括一切的不可能性。

采矿工程 毕业设计_外文翻译 英译汉 中英文

采矿工程 毕业设计_外文翻译 英译汉 中英文

ROOM-AND-PILLAR METHOD OF OPEN-STOPE MINING空场采矿法中的房柱采矿法Chapter 1.A Classification of the Room-and-Pillar Method of Open-Stope Mining第一部分,空场采矿的房柱法的分类OPEN STOPING空场采矿法An open stope is an underground cavity from which the initial ore has been mined. Caving of the opening is prevented (at least temporarily) by support from the unmined ore or waste left in the stope,in the form of pillars,and the stope walls (also called ribs or abutments). In addition to this primary may also be required using rockbolts , reinforcing rods, split pipes ,or shotcrete to stabilize the rock surface immediately adjacent to the opening. The secondary reinforcement procedure does not preclude the method classified as open stoping.露天采场台阶是开采了地下矿石后形成的地下洞室。

通过块矿或采场的支柱和(也称为肋或肩)采场墙形式的废料的支持来(至少是暂时的)预防放顶煤的开幕。

除了这个,可能还需要使用锚杆,钢筋棒,分流管,或喷浆,以稳定紧邻开幕的岩石表面。

采矿工程毕业翻译

采矿工程毕业翻译

2013 届毕业文献翻译题目文献翻译专业班级采矿工程学号 09010901xx学生姓名刘xx指导教师张电吉指导教师职称教授学院名称环境与城市建设学院完成日期: 2013 年 6 月日Room and pillar Mining MethodsBullock(1982a),quoting previous data, showed that room and pillar mining together with stope and pillar mining accounted for most of the underground mining in the United States. He estimated that 60% of noncoal minerals (about 80 million tons or 70 Mt) and 90% of coal ( about 290 million tons or 260 Mt) were obtained by room and pillar methods, and it is unlikely that things are radically different today. The method is cheap, highly productive, easily mechanized, and relatively simple to design.The room and pillar mining method (Fig.5. 2) is a type of open stoping used in near horizontal deposits in reasonably competent rock, where the roof is supported primarily by pillars. Ore is extracted from rectangular shaped rooms or entries in the ore body, leaving parts of the ore between the entries as pillars to support the hanging wall or roof. The pillars are arranged in a regular pattern, or grid, to simplify planning and operation. They can be any shape but are usually square or rectangular. The dimensions of the rooms and pillars depend on many design factors. These include the stability of the hanging wall and the strength of the ore in the pillars, the thickness of the deposit, and the depth of mining. The objective of design is to extract the maximum amount of ore that is compatible with safe working conditions. The ore left in the pillars is usually regarded as irrecoverable or recoverable only with backfill in noncoal mines.applications of pillar mining have been discussed by Hamrin ( 1982) and Hittman( Anon. . 1976) among others. Suitable conditions include ore that are horizontal or have a dip of less than 30°. A major requirement is that the hanging wall is relatively competent over a short period of time, or is capable of support by rock bolts that are used extensively in room and pillar mining. The method:! is particularly suited to bedded deposits of moderate thickness (2 to 6 m) such as coal-the main application一salt, potash, and limestone.Figure.5.2Room and pillar mining method.1, Methods of Room and Pillar MiningRoom and pillar mining takes place in sections or panels, which are usually rectangular and regular in plan. In hard rock mining of horizontal ore bodies, the method is very similar to open stoping. In many cases, ore grade control may be the primary requirement in mine design, and ground control and ventilation secondary considerations. This may lead to an ad hoc room and pillar design with irregular- , nonrecoverable pillars of low-grade ore.Hard-rock room and pillar mining is a effectively method of open stoping (stope and pillar mining) at a low angle to the horizontal, excavating rooms and leaving supporting pillars.Where mineral values vary, the method is similar to the old “gophering" method of mining where random excavations followed highly mineralized zones. Where mineral values are consistent, the mine layout can be regular. The method differs from most hard-rock mining methods in that gravity flow is limited, and ore must be loaded in the excavation where it has been blasted and transported from that point. In large operations this involves trucks and loaders or load — haul — dumps ( LHDs).There are various methods of room and pillar stoping. The most common are full-face slicing breast stoping and multiple slicing or bench and breast stoping. In the former, the rooms are opened to their full vertical height with no mineral or economic value left in the roof or the floor. probably the reasonable safe limit for full-face slicing is 8 to 10 m depending on drilling and support equipment, and beyond this, multiple slicing is used.2. Production CycleFor hard-rock ore bodies ,the basic cycle is similar to hard-rock tunneling four main elements, (1)mark out and drill blast holes , usually in a wedge pattern , (2) ,and ventilate to remove blast fumes ,(3) introduce mucker and muck and load,and ④scale the face and walls and bolt the roof where necessary. There is considerable complexity in the interaction among these elements that make up a basic critical path. In order to estimate the cycle time, it is necessary to determine unit loading and drilling rates and task times for these elements and also to estimate how subsidiary elements and tasks such as haulage and ventilation takeup may impinge upon the critical path in a badly organized mine.3.Panel DevelopmentA panel layout for a typical room and pillar mine in a noncoal mine is illustrated as follows :The excavation height is about 4.5m,and the normal sloping practice is to drive a single development drift about 10. 5 m wide a distance of about four or five rooms into the ore body. This will serve as the main haulage drift. Pillars are then marked out on the drift walls and rooms driven between them.To drill and blast the initial drive when the only exposed or free face is the drive face, some form of cut pattern is used. This is known as the “ face round or “ swing and in a 4. 5 by 10.5 m face will comprise 60 to 70 holes of about 8 mm to a depth at 3 to 3. 6 m. If more than one face is exposed,a group of holes may be drilled at a low angle to the free face in what is known as a " slab round or slabbing or “slashing”. This requires less explosive and less drilling than a single face. the most common form of face round is a wedge or V, cut although bum cuts can also beDrilling is carried out with jumbo-mounted hydraulic drills ;loading is usually by gathering arm loader, although in modern mines, trackless LHD vehicles are used to the load to a transfer raise where it is reloaded into trucks or conveyors.房柱法Bullock在1982年提出房柱法,它指在矿房与矿柱里回采矿物,在美国大多数地下开采应用柱式开采。

采矿工程专业毕业设计外文文献翻译(中英文翻译)

外文原文:Adopt the crest of the coal work noodles plank managementproblem studyCrest the plank management is the point that adopts a safe management of the coal work noodles.Statistics according to the data, crest the plank trouble has 60% of the coal mine trouble about, adopting the trouble of the coal work noodles and having a crest 70% of the plank trouble above.Therefore, we have to strengthen a plank management, reducing to adopt the coal work noodles crest the occurrence of the plank trouble.1,the definition of the crest,scaleboard and it categorizeEndow with the existence coal seam on of the close by rock strata be called a plank, endow with the existence coal seam under of the close by rock strata be called scaleboard.Crest the rock,strength of the scaleboard and absorb water sex and digging to work the management of the noodles contain direct relation, they is certain crest the plank protect a way and choose to adopt the empty area processing method of main basis.1.1 planks categorizeAccording to rock,thickness and return to adopt process to fall in the 垮of difficult easy degree, crest the plank is divided into the false crest,direct crest and old crest.According to direct crest sport to adopt a field to the influence for press, the direct crest is divided into broken up,unsteady,medium etc. stability,stability,strong and tough crest plank etc. is five.According to old crest the sport Be work mineral inside the noodles press to present degree and to work safe threat of noodles of size, the old crest is is divided in to press very and severely, press mightiness, press to compare obviously, don't obviously press etc. is four.1.2 scaleboards categorizeAccording to the opposite position relation of the rock strata and the coal seam, the scaleboard is divided into direct bottom with the old bottom.Locate coal seam directly under of the rock strata be called direct bottom;locate the direct bottom or coal seam under of the rock strata be called old bottom.The coal seam crest the scaleboard type expects the influence of the geology structure sport after be subjected to the deposition environment and, its growth in different region degree dissimilarity, the coal seam possibility for have isn't whole.2,crest that need to be control plank classification and adopt the processing way of the empty areaAccording to different crest the plank type and property, choose to pay to protect a way and adopt the empty area processing method differently, is a plank management of basic principle.2.1 crest needed to pull to make plank classificationPress a knothole rock strata strength, the crest plank that needs to be control can is divided into: general crest the plank,slowness descend to sink a plank and is whole fall the crest of the cave in the danger plank etc..2.2 work noodles adopt the processing method of the empty areaThe processing method that adopts empty area mainly has: all 垮s fall a method,partial full to fill a method,the coal pillar to prop up a method to alleviate to descend to sink a method slowly etc..3,crest the plank pressure present a characteristic3.1 top the cover rock strata of the sport regulation and the work in front pay to accept pressure to distribute behindDuring the period of mine, adopt empty area above of the rock strata will take place ambulation, according to crest the plank change mind condition, taking the cranny rock strata in up the cover rock strata follow the work noodles to push forward the direction demarcation as three areas: the coal wall prop up the influence area,leave layer area and re- press solid area.The noodles opens to slice an eye to go to push forward forward in the process from the work, break original should the equilibrium of the dint field, cause should the dint re- distribute.Be adopting the coal work noodles to become to pay to accept pressure in front and back, it concretely distributes shape to have something to do with adopting the empty area processing method.3.2 first times to press to press a main manifestation with the periodFirst time to press a main manifestation:BE a plank"by oneself the vield song" range enlargement;the coal wall transform and fall to fall(the slice help);pay to protect to drill bottom etc..First time to press to want to keep on more and suddenly and generally for 2-3 days.Period to press a main manifestation:Main manifestation BE:crest the plank descend to sink nasty play increment of speed, crest the plank descend to sink quantity to become big;pay what pillar be subjected to load widespread increment;adopt empty area to hang a crest;pay pillar to make a noise;cause the coal wall slice to help,pay pillar to damage,crest plank occurrence the step descend to sink etc..If pay the pillar parameter choice to be unsuited to a proper or single body to pay the pillar stability worse, may cause the partial crest or crest plank follow the work noodles to slice to fall etc..4,crest the plank choice for protectThe work noodles the function for protect decelerate a plank to descend to sink, supporting to control a crest to be apart from the knothole integrity inside the crest, assurance work space safety.4.1 choices that protect material and formPay to protect material to mainly there are the metals support and the wood support.Pay to protect a form to mainly have a little the pillar to protect,the cote type protect to press a support with liquid.4.2s protect a specification choiceWhile choosing to pay to protect specification, mainly control the following 2:00:1.Control the work noodles adopt high and its variety.Generally can according to drill a holethe pillar form or have already dug the tunnel data of to make sure to adopt high.From last the movable regulation of the cover rock strata, can the initial assurance crest plank at biggest control a crest to be apart from place of average biggest descend to sink quantity, select to pay a pillar model number suitablely2 control the crest plank of the normal appearance to descend to sink the quantity and support can the draw back pute the biggest and high Hmax and minimum and high Hmin that pays pillar, select specification of pay the prehensive the pillar model number and specification, check related anticipate, assurance the model number of the pillar.5,the work noodles manages everyday of pointEveryday crest the point of plank management is the with accuracy certain protects density and control a method, right arrangement and organize to adopt coal and control a crest to relate to in fixed time, strengthen to pay to protect the quality management before press, the assistance that chooses to use a good necessity protect etc., attain to expel to emit a trouble, assurance the purpose of[with] efficiency.1 choice that protects density and controls a methodAccording to the work noodles crest plank rock,adopt a periodic to press obvious degree, press strength and to press in front and back a crest knothole variety a circumstance etc., the certain protect density and control a method.It adopt coal in 2 production lines with control of the crest to relate to in fixed timePeriod to don't obviously press to adopt a field, emphasize to pay to protect,adopt coal, control a parallel homework, possibly contract to adopt coal,return to pillar to put distance between an operations with speed the work noodles propulsion degree;period to press more and obviously adopt a field, at to press in front and back adopt different of,control the relation organization project, before press should not adopt coal,put a crest in the meantime homework, press after should adopt to adopt coal,put a crest to keep minimum wrong be apart from parallel homework.Field to strengthen to pay to protect the quality management assurance to pay pillar to have to prop up dint,prevent°from paying pillar to drill bottom enough before press,right adoption the assistance protect.Adopt the coal work noodles crest, the plank manages everyday of the key lie in raising the spot management,the operation level, paying to protect and adapt to adopt a field to press and crest the scaleboard variety circumstance, adopt right of the assistance protect measure, well exertivecontrol a result.译文:采煤工作面的顶板管理问题探讨顶板管理是采煤工作面安全管理的重点。

测绘工程矿山测量论文中英文资料对照外文翻译文献综述

测绘工程矿山测量中英文资料对照外文翻译文献综述The measurement of the surveying and mapping in mineSince the seventy s, as the electronic technology and laser technology development, the type of surveying and mapping instruments with electronics (such as range finder, electronic tachometer, gyroscopes) to the traditional surveying and mapping instruments methods produced profound effect. In satellite remote sensing, global positioning system, as a representative of the space on earth observation technology in surveying and mapping application in the science of mature, computer technology, system scientifically based geographic information system and application for the emergence of surveying and mapping information source of access, analyze, management, processing and application fully provide strong technical support, automation and intelligence of surveying and mapping system is already in investigation, therefore we can say, the modern mapping technology is undergoing a profound revolution. Mining of measuring technology of an important application field, in the vast coal, metal mines, nonferrous mine production process played an important role. Mine survey of modern task is: in mine exploration, design, development and production of the different stages of the operation of the ground and underground mining area, the space, resources, (in mineral and land resources and environment are mainly) information acquisition, storage, processing, display and use for reasonable and effective development resources, protecting the resources, protecting the environment, management, industrial and environmental services for the continuous development of the station. In order to realize its modern task, mine measurement must be making full use of modern surveying and mapping instruments and techniques, put the advanced modern technology with mine surveying the actual work,specific characteristics, and the combination of broaden the living space mine survey and business scope, promote the reform and development of mine survey, adapt to the market economy system and mining system reform needs. Electronic tachometer, space information technology, the inertial measurement system and other modern surveying and mapping instruments have been in mine survey technology is used to further development and are constantly.This paper to modern surveying and mapping instruments of the development of the technology and its application in mine.1、Electronic tachometer and its application in mine survey:Electronic tachometer as the most widely used surveying and mapping instruments, is electronic technology and optical technology development of the combination of the photoelectric measuring instrument, is also set range finder, electronic advantages in a wide range of instruments, application prospects, the intelligent electronic tachometer is currently the biggest selling surveying and mapping instruments, is also the main future development direction. Intelligent electronic tachometer is with light, electricity and magnetism, machine of the latest scientific achievements, set the location, measuring Angle for the integration of advanced instrument. The international advanced electronic tachometer are on a memory card, internal memory or electronic hand book way, way of double record data transmission communication function, can receive external computer instruction by the computer input data, also can to outside the computer output data. The international advanced electronic tachometer have Japanese SOKKIA POWERSET series production of electronic tachometer and SET5F, SET6F, SET5W electronic tachometer, Swiss produces the TCA100 and TCA1800 electronic tachometer, Japan NIKON DTM-A series of electronic tachometer, etc. Our country has just south of the surveying and mapping instruments company production NTS-200 series electronic tachometer. Electronic tachometer has set up a file in the engineering survey, mine surveying, cadastral etc a wide range of applications, its development and application is in rapid developing. Electronic tachometer because and has the advantages of transit and range finder, and provide measurement results in digital form, its simple operation, stable performance, data can be through the electronic hand book and thecomputer to carry on the advantages of communication in the mine in the measurement of a wide range of applications. The ground control survey, topographic, engineering surveying all available is, contact measurement, the measurement work can also be used inunderground i To as a representative of the intelligent, digital instrument is minesurveying instrument one of the development direction in the future. Based on theelectronic tachometer and the modern computer technology can establish a mine 3 d data to be automatic collection, transmission,processing of mine surveying dataprocessing system, instead of traditional hand book records, manual entry, detailed calculation of repetitive work. In addition, electronic tachometer in mine surfacemovement monitoring, land reclamation project implementation, mine construction aspects also have been applied, each big ore measurement organizations are to instead of traditional instruments for routine measure the work, not only improves the efficiency, picked up speed, and reduced the development, and to ensure the accuracy2、Space information technology and its application in the measurement of the mine.The core of spatial information technology and the subject is the "3 S" technology (Remote Sensing:RS)、 (Global Positioning System GPS)、 (Grographic Information System:GIS) Remote sensing including satellite remote sensing and remote sensing, remote sensing data topographic map surveying as the important means in practice has a wide range of applications, satellite remote sensing for mapping is also mine of study and has made some significant results, based on remote sensing data to build digital terrain model (DTM) and then used in surveying and mapping work has won more applications. GPS as a cause of surveying and mapping in the traditional concept of major change technology, has become a main technology of land measurement method, also is the most potential mobile technology, in mine measurement, control survey, project survey, environment monitoring, disaster prevention and reduction of the navigation transport plays a significant role. Because not only have all-weather GPS, high precision and high flexibility, and the advantages of the traditional measuring technology without strict control, compared the level measurement, don't take points between depending on the point, withoutthe need to build standard, there is no error accumulation, the three dimensional positioning etc, and in the field measurement model, error sources and data processing to the traditional concept of surveying and mapping is a revolutionary change. The geographic information system as the geographical distribution of space of therelevant data collecting, processing, management, analysis of computer technology system, and its development and application of surveying and mapping the development of science is of great significance, is the modern mapping technology of important technical support. With "3 S" integration or integrated as the leading technology of space information system has gradually become the surveying and mapping learning or the earth informat ics new technology system and the work pattern, its advanced nature, timeliness obvious. With the space information technology for technical support, modern surveying and mapping instruments, technology is in rapid development in. The measurement of the remote sensing technology in the mines application has experienced a long time, and has accumulated rich experience.For remote sensing, it can be used as remote sensing data mining on the data topographic map surveying data source, like a piece of correction, through visual interpretation, field adjustable draw the work, complete the topographic map surveying and mapping. Compared with the traditional mapping method, using remote sensing data of mapping speed, low cost, high precision, it is a kind of application very extensive mapping method. Remote sensing in mine measurement of the applications of the key theory and technology also is in the investigation. Application of remote sensing data mining area, can obtain real-time, dynamic and comprehensive information source, to the mining area environment monitoring of the mining area environment protection to provide decision support. Remote sensing data mining area for prospecting, geological conditions, roof and floor of coal seam in such aspects as research has been applied, all these, explains the application of remote sensing technique in mining measurement is mine surveying realize its modern task important guarantee. GPS technology in the measurement of the mine is mainly applied to replace traditional ground surveying and mapping work. Using GPS technology such as mining surface movement monitoring, hydrology monitoring, miningarea control elevation hole net establishment or measure, reform, GPS receiver with performance to price has been rising, and its application in the measurement of minework the ground has become a part of the modern mine survey is an important support technology. Used in mining area the geographic information system is for mine geographical information system, or called mine material source environment alinformation system (MRIES). MREIS has become the important developing directionmine survey. With mining area environment resources information system as a platformto all kinds of measurement techniques for data acquisition approach, can build a collection of data acquisition, processing, management, analysis and output in oneof the automation, intelligent technology system, as the sustainable developmentof mining decision support system. Mine survey MREIS work is to establish the fistwork, and to create a MREIS mine surveying is an inevitable trend. Therefore, theGPS in the mining area is first applied used in a mine measurement information system established measurement, and then based on this establish the mining area environment information system resources. Space information technology is mine surveying realize its modern task of important technical support and guarantee, "3S" technology and other measuring instrument technology on the basis of the organic combination of the mining area environment information system is the spatial data information technology in mine survey of the applications of the comprehensiveresults.3 .the inertial measurement system and its application in the measurement ofthe mineThe inertial measurement system (Inertial ISS) is a kind of navigation and positioning technology, have all-w, autonomous, fast can flexible and advantages,the earth measurement, engineering surveying and mining measure the work of automation and versatility provided another kind of new technology. It is to usethe principle of inertial navigation, and earn geodetic data (longitude and latitude, elevation, azimuth, gravity anomaly and vertical deflection, etc.) of a kind of technology system.ISS can be divided into two categories: platform utility system and typesystem in the field of surveying and mapping, ISS main application target includes:(1) control measure, such as the existing control point review, encryption, and aerial control, etc.; (2) pipeline monitoring, orientation, crustal deformation, the surface subsidence observation; (3) underground positioning, all kinds of engineering and construction measure; (4) earthquake, gravity survey, geophysical research; (5) shaft and cans of vertical way beam of monitoring, etc. GPS/ISS combination system is to meet high precision navigation and positioning of the development direction of the request. This combination system can make the GPS and the performance of theISS, can get a lot of complementary to the whole land measurement model dataprocessing, and make sure that 3 d coordinate and the positioning and the precision of the navigation unstable, and increased significantly. The inertial measurement system in mine to the measurement of the Lord is applied in application in themeasurement of the application, the activities of the underground measurement, and of course the ground also has been applied in many fields, such as stated above. ISS in mines in China, the application in the measurement of work is to carry out in-depth,continue to develop. With GPS + ISS combination system used in mines measurement is a promising a technologyFour other new technology in the new instrument of surveying and mapping application to the measurement of the mineOther modern surveying and mapping instruments, such as laser point to meter, the gyro th, digital levels and related technology are all mine surveying and mapping measurement is used, and with the instrument technology as the foundation, formed many mining measurement instrument, as mine survey for the application of modern instruments and techniques.Mine survey as a cross subject, the development and the progress and the mining technology and the development of the mining project, measuring instruments and equipment of science and technology and the development of other subjects like mathematical science, computer science, etc, the development are closely related. Modern mapping technology is based on the electronic technology, space technology, optical technology, computer technology based on comprehensive technology, and has the intelligence, automation and so on a series of advantages. Modern science and technology, the rapid development of surveying and mapping can surely promote the further development of mine survey. With modern technology, mining engineeringsurveying and mapping technology and related science and technology as the foundation, the mine survey will form and collect data acquisition, processing, management, transmission, analysis, expression, application, output for the integration of intelligence, automation technology system for mine resources, environmental information system establishment provide fundamental material, promoting mine sustainable development.测绘在矿山测量中的发展七十年代以来,随着电子技术和激光技术的发展,光电结合型的测绘仪器(如测距仪、全站仪、陀螺仪)对传统的测绘仪器方法产生了深刻的影响。

采矿专业英语文章带翻译

英译汉Underground Mining Methods地下采矿方法Room and Pillar Mining房柱采矿法Ramps (inclined tunnels) are excavated to connect the surface to the underground orebody. Drifts (horizontal tunnels) are excavated at different elevations to surround the orebody. Next, stopes (tunnels that have direct access to mining the ore) are mined to gain access to the ore. All tunnels are excavated by drilling and blasting. Jumbos are in charge of drilling the holes in the rocks and filling them with explosives. The loose rock, also called muck, is transported by either dump trucks back up to the surface for either waste disposal or processing.矿体由隧道(斜井)与地表联通。

阶段运输巷道分布在矿体的不同水平。

接下来,在采场采场开采矿石。

所有巷道通过钻孔和爆破的方式开掘的。

钻车是用来在岩石上钻研和并将钻孔填装炸药。

松动的岩石,也称为废石,由自卸卡车运输至废石场。

As mucking progresses, rooms (tunnels) are cut into the ore body. In order to provide safe roof support for mining, pillars of material around the rooms are left standing to hold up the rock ceiling above. Some parts of the mine roof can be particularly weak and fragile. In addition to pillar support, a jumbo is then brought back in for rock bolting of the roof to ensure safety.随着巷道的掘进,矿体被分割成矿块。

采矿工程毕业设计英文翻译

Underground MiningMost present-day mining in Europe occurs under 2000 to 4000 ft of overburden, as more easily mined coal deposits have been depleted. At this depth most mines are developed as shaft mines. All personnel, material, and coal have to be hoisted trough these shaft. Considering the two factors of hoisting capacity and required length of shaft, a considerable investment is necessary to reach the coal-bearing strata. The requires huge investments. Openings at this depth have to be equipped with costly supports, and periodic reworking and repair is necessary.Mines not only extend horizontally but also vertically through the development of new levels. The life of the mines is thus extend considerably, and surface installations can be amortize over a longer period.The more limited reserves have forced companies into mining less favorable deposits, and European government require that all possible deposits be mined to conserve the nation’s energy resources. These factor and the large percentage of inclined seams and faults make mining very difficult and costly. The population density and the heavy surface buildup cause additional expense in the form of payments for subsidence damage to surface structures. Therefore, backfilling is frequently practiced to reduce subsidence. The close spacing of faults often severely limits the size of a mining section, forcing frequent moves and excessive development work.The thickness of the overburden results in very high ground pressure. This would require extremely large pillars if the room and pillar method was applied. Additionally, support is required for any opening, adding prohibitive costs to a multiple-entry room and pillar operation.As a result, single-entry longwall operations requiring the minimum number of entries and allowing maximum recovery of resources is the mining method almost exclusively practiced.Shaft mines dominate the European coal mining industry. Shafts 20 to 30 ft in diameter, with circular cross section, lined with masonry, concrete, or steel are the dominant meansof gaining access to the coal-bearing strata. They are often extended beyond the last mining level to provide for future expansion. As in the Unite States, shafts are developed by drilling, blasting, and excavating or by large-diameter shaft-boring equipment. Shaft boring is more frequently used, particularly on the smaller and shorter subshaft, which connect the different levels but do not extend to the surface.Haulage in the shaft is usually accomplished by hoisting of the filled mine cars on multistage cages or by skips. Pumping of coal slurry is also done in special cases.The complex system of forces and the resulting rock mechanical problems developed by mining activities at different levels result in significant differences between European and US underground development. The rock mechanical interaction of the extraction operations at the various levels require that all deposits be mined as completely as possible. Pillars left after mining create zones of extreme and often unmanageable ground control problem, as well as a high probability of roof bounce.Since the number of entries is kept to a minimum because of cost, no bleeder systems are provided. If retreat mining is practiced, only two entries are advanced in to a new mining area.Panels are laid out as large as possible. The large-panel layout is used as another means of reducing the number ofentries. Minded–out panels are sealed off to prevent spontaneous combustion through the removal of oxygen.The main levels, with extensive entry systems, are used for coal, supply, and personnel haulage and for ventilation. They are often spaced with little regard to the position of the coal seams, because the deposits are reached selectively through other means. In the past, 165-or330-ft intervals were selected while increasing ground pressures and development and maintenance increase substantially, requiring large volumes of air for cooling. As a result, entry cross sections at these levels have to be increase.Fig.9.1 German multilevel, multiseam shaft-type coal mine.Underground facilities:(1) main shaft with skip hoisting;(2) exhaust ventilation shaft with multistage cage;(3) third-level station;(4) blind shaft with cylindrical storage bin;(5) blind shaft with car-hoisting facilities;(6) main entry;(7) main entry;(8) section or panel entry;(9) road heading machine(10) longwall section with plow;(11) longwall section with shearer;(12) longwall section in a steeply pitching seam mined manually with air picks;(13) longwall section in steeply pitching seam with plow;(14) minded-out gob area;(15) ventilation lock;(16) belt conveyor as main haulage;(17) main car haulage;(18) storage bin and skip-loading facilities;(19) supply haulage with a mono-rail;(20) supply haulage with mine cars;(21) monorail system as personnel carrier;(22) worker-trip cars;(23) pump station. Surface facilities:(a) hoisting tower with overhead hoist;(b) shaft building;(c) head frame;(d) main exhaust fan and diffuser;(e) coal preparation plant with loading facilities;(f) coking coal silo;(g) container vehicle for filling of coke ovens;(h) coke oven battery;(i) coke watering car;(k) coke quenching tower;(l) gas tank;(m) water-treatment plant;(n) refuse pile;(o) power plant;(p) cooling tower;(q) water tower;(r) supply storage area;(s) sawmill;(t) training and teaching center.地下采煤目前,大部分欧洲的煤矿开采都已经达到了2000到4000英尺,主要是因为浅部容易开采的煤层都已经采完。

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外文原文:Adopt the crest of the coal work noodles plank managementproblem studyCrest the plank management is the point that adopts a safe management of the coal work noodles.Statistics according to the data, crest the plank trouble has 60% of the coal mine trouble about, adopting the trouble of the coal work noodles and having a crest 70% of the plank trouble above.Therefore, we have to strengthen a plank management, reducing to adopt the coal work noodles crest the occurrence of the plank trouble.1,the definition of the crest,scaleboard and it categorizeEndow with the existence coal seam on of the close by rock strata be called a plank, endow with the existence coal seam under of the close by rock strata be called scaleboard.Crest the rock,strength of the scaleboard and absorb water sex and digging to work the management of the noodles contain direct relation, they is certain crest the plank protect a way and choose to adopt the empty area processing method of main basis.1.1 planks categorizeAccording to rock,thickness and return to adopt process to fall in the 垮of difficult easy degree, crest the plank is divided into the false crest,direct crest and old crest.According to direct crest sport to adopt a field to the influence for press, the direct crest is divided into broken up,unsteady,medium etc. stability,stability,strong and tough crest plank etc. is five.According to old crest the sport Be work mineral inside the noodles press to present degree and to work safe threat of noodles of size, the old crest is is divided in to press very and severely, press mightiness, press to compare obviously, don't obviously press etc. is four.1.2 scaleboards categorizeAccording to the opposite position relation of the rock strata and the coal seam, the scaleboard is divided into direct bottom with the old bottom.Locate coal seam directly under of the rock strata be called direct bottom;locate the direct bottom or coal seam under of the rock strata be called old bottom.The coal seam crest the scaleboard type expects the influence of the geology structure sport after be subjected to the deposition environment and, its growth in different region degree dissimilarity, the coal seam possibility for have isn't whole.2,crest that need to be control plank classification and adopt the processing way of the empty areaAccording to different crest the plank type and property, choose to pay to protect a way and adopt the empty area processing method differently, is a plank management of basic principle.2.1 crest needed to pull to make plank classificationPress a knothole rock strata strength, the crest plank that needs to be control can is divided into: general crest the plank,slowness descend to sink a plank and is whole fall the crest of the cave in the danger plank etc..2.2 work noodles adopt the processing method of the empty areaThe processing method that adopts empty area mainly has: all 垮s fall a method,partial full to fill a method,the coal pillar to prop up a method to alleviate to descend to sink a method slowly etc..3,crest the plank pressure present a characteristic3.1 top the cover rock strata of the sport regulation and the work in front pay to accept pressure to distribute behindDuring the period of mine, adopt empty area above of the rock strata will take place ambulation, according to crest the plank change mind condition, taking the cranny rock strata in up the cover rock strata follow the work noodles to push forward the direction demarcation as three areas: the coal wall prop up the influence area,leave layer area and re- press solid area.The noodles opens to slice an eye to go to push forward forward in the process from the work, break original should the equilibrium of the dint field, cause should the dint re- distribute.Be adopting the coal work noodles to become to pay to accept pressure in front and back, it concretely distributes shape to have something to do with adopting the empty area processing method.3.2 first times to press to press a main manifestation with the periodFirst time to press a main manifestation:BE a plank"by oneself the vield song" range enlargement;the coal wall transform and fall to fall(the slice help);pay to protect to drill bottom etc..First time to press to want to keep on more and suddenly and generally for 2-3 days.Period to press a main manifestation:Main manifestation BE:crest the plank descend to sink nasty play increment of speed, crest the plank descend to sink quantity to become big;pay what pillar be subjected to load widespread increment;adopt empty area to hang a crest;pay pillar to make a noise;cause the coal wall slice to help,pay pillar to damage,crest plank occurrence the step descend to sink etc..If pay the pillar parameter choice to be unsuited to a proper or single body to pay the pillar stability worse, may cause the partial crest or crest plank follow the work noodles to slice to fall etc..4,crest the plank choice for protectThe work noodles the function for protect decelerate a plank to descend to sink, supporting to control a crest to be apart from the knothole integrity inside the crest, assurance work space safety.4.1 choices that protect material and formPay to protect material to mainly there are the metals support and the wood support.Pay to protect a form to mainly have a little the pillar to protect,the cote type protect to press a support with liquid.4.2s protect a specification choiceWhile choosing to pay to protect specification, mainly control the following 2:00:1.Control the work noodles adopt high and its variety.Generally can according to drill a holethe pillar form or have already dug the tunnel data of to make sure to adopt high.From last the movable regulation of the cover rock strata, can the initial assurance crest plank at biggest control a crest to be apart from place of average biggest descend to sink quantity, select to pay a pillar model number suitablely2 control the crest plank of the normal appearance to descend to sink the quantity and support can the draw back pute the biggest and high Hmax and minimum and high Hmin that pays pillar, select specification of pay the prehensive the pillar model number and specification, check related anticipate, assurance the model number of the pillar.5,the work noodles manages everyday of pointEveryday crest the point of plank management is the with accuracy certain protects density and control a method, right arrangement and organize to adopt coal and control a crest to relate to in fixed time, strengthen to pay to protect the quality management before press, the assistance that chooses to use a good necessity protect etc., attain to expel to emit a trouble, assurance the purpose of[with] efficiency.1 choice that protects density and controls a methodAccording to the work noodles crest plank rock,adopt a periodic to press obvious degree, press strength and to press in front and back a crest knothole variety a circumstance etc., the certain protect density and control a method.It adopt coal in 2 production lines with control of the crest to relate to in fixed timePeriod to don't obviously press to adopt a field, emphasize to pay to protect,adopt coal, control a parallel homework, possibly contract to adopt coal,return to pillar to put distance between an operations with speed the work noodles propulsion degree;period to press more and obviously adopt a field, at to press in front and back adopt different of,control the relation organization project, before press should not adopt coal,put a crest in the meantime homework, press after should adopt to adopt coal,put a crest to keep minimum wrong be apart from parallel homework.Field to strengthen to pay to protect the quality management assurance to pay pillar to have to prop up dint,prevent°from paying pillar to drill bottom enough before press,right adoption the assistance protect.Adopt the coal work noodles crest, the plank manages everyday of the key lie in raising the spot management,the operation level, paying to protect and adapt to adopt a field to press and crest the scaleboard variety circumstance, adopt right of the assistance protect measure, well exertivecontrol a result.译文:采煤工作面的顶板管理问题探讨顶板管理是采煤工作面安全管理的重点。

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