拉森钢板桩方案

XXXXXXXXXXXXXXXX

拉

森

钢

板

桩

施

工

方

案

（基坑围护）

Lason Steel Sheet Pile Construction Method Statement of Roche Canteen Project for Foundation Pit Retaining XXXXXXXXXXXXXXXXXXXXXXXX Canteen Project Department of Shanghai Yatai Construction Group

2010年11月

目录Catalog

一、工程概况Project Overview (1)

二、编制依据Complication basis (1)

三、施工组织部署construction organization (2)

四、施工准备construction preparation (5)

五、施工方案construction pregram (6)

(一)、施工技术方案construction technologic program (6)

(二)、施工测量方案construction measuring program (7)

(三)、拉森钢板桩施工方法Lason steel sheet pile construction method statemen (7)

六、技术管理措施technology management measures (9)

七、施工质量管理措施construction quality management measures (12)

八、现场安全文明管理措施Site safety civilized management measures (14)

一、工程概况Project Overview

工程名称：XXXXXX

Project title: XXXXX

建设单位：XXXXXXXX

Client: XXXX

设计单位：XXXXX

Design unit: XXXX

施工单位：XXXXXX

Construction unit.: XXXX

工程地点：XXXXX

Project Location: XXXXX

建筑面积：总建筑面积为XXX平方米，其中地上建筑面积XXM2，地下建筑面积：XXM2

Building Area: total construction area is XX m2, of which the ground floor area is XXm2, underground area: XXX m2

结构类型：框架结构（地下层为钢筋砼外墙）

Structure type: frame structure (reinforcement concrete wall for basement)

设计层数：局部地下一层，地上三层。

Designed layers: a underground layer in local area, 3 levels above the ground.

二、编制依据Complication basis

(一)、施工现场总平面图general construction site layout

(二)、本工程围护图纸（申元岩土有限公司设计）project retaining drawing(designed by Shenyuan Geotechnical Co., Ltd)

(三)、新建员工餐厅基础平面图、剖面图及相关图纸new canteen foundation layout and cross-section drawing and related drawing

(四)、《建筑地基基础设计规范》（DGJ08-11-2010）Design code of building

foundation

(五)、《建筑地基基础工程施工质量验收规范》（GB 50202-2002）

Building foundation engineering construction quality inspection specifications (六)、工程地质勘察报告。Engineering geological investigation report.

三、施工组织部署The construction organization deployment

(一)、施工组织管理Construction organization and management

根据工程实际特点以及我们制订的目标要求，建立质量管理网络和争创优质工程领导小组，项目管理人员各尽其责，使质量问题消除在施工过程中，努力做好质量管理工作。

According to actual engineering characteristic and goal request, establish quality management network and create quality engineering leadership group, project management staff fulfill themselves’ duty, make sure each quality problem is eliminated in construction process, try to do the quality control work well.

项目管理网络图Project management network

(二)、质量目标quality target

做好工程质量控制，确保桩顶标高在±100mm内；板桩轴线偏差±50mm内,垂直偏差1%内。

Control the engineering quality strictly, make sure the pile top elevation in + 100m inside; sheet pile axis deviation within + 50, vertical deviation within 1%. (三)、施工管理目标construction management target

做好文明施工，确保安全施工。Completes the civilized construction, ensure safety construction.

(四)、施工现场平面布置construction site layout

施工现场由根据施工要求做好围档，办公、生活、生产临时设施布置合理。

According to the construction requirements, surround the site with fence, official, living, production temporary facilities is arranged reasonably.

(五)、施工工期construction schedule

自设备进场至工程结束（每天完成拉森桩100根，进场调试不计），基坑围护工程施工工期为3个日历天，支撑围檩施工打桩结束后施工，约需工期为4天，围护施工为7个日历天。

From the equipment present to project end (complete 100 Larsen pile /day, not including the commission days), pit retaining period is 3 calendar days, supporting purlin needs about 4 days after piling construction, retaining construction needs 7calendar days.

(六)、施工顺序construction sequence

施工时从内往外侧打桩，采用屏风式打入法。

Piling construction starts from inside to outside, use screen type.

(七)、劳动力组织Labor organization

根据本工程结构的施工内容，结合劳动力的阶段不平衡使用情况，本工程施工共需机操工1人，吊车操作工1人，电工1人，焊工2人，打桩工3人，指挥1人，现场管理人员3人，即高峰期用人工数约12人，基本上能够满足施工需要。

According to the engineering structure construction content and unbalanced labor situation in different phases, the project construction totally needs one machine operator, one crane operators, 1 electrician, 2 welding operators,3 piling workers, 1command person, 3 on-site management person, about 12 person in construction peak period, basically can meet the construction needs.

(八)、施工工艺流程Construction process

施工准备(平整场地、测量定位、路基板铺设、施工用电的布置) ―设备及机械就位―打控制桩―布置导向―捆绑吊桩―垂直稳当后振动锤液压夹住拉森桩―振动打桩―支撑加固―拆除支撑围檩―拔桩。

Construction preparation (land leveling, measuring and positioning, load board laying, distribute construction electricity) - equipment and machinery present-

pressing control pile –set the direction -bound hanging piles - vibratory hammer hydraulic clamp Larsen pile - piling in vibration -support for reinforcement -dismantling support purlin – pull out the pile.

四、施工准备Construction preparation

(一)、技术准备Technical preparation

1、熟悉施工现场情况(现场、设计、地质情况)和组织施工方案的设计及审核。Familiar with the situation of construction site (site, the design, the geological condition) and organization construction scheme design and audit.

2、工程开工前及时与业主、监理联系，做好方案交底及审核工作。主要为方案的可行性。

Contact with clients, supervision in time, and make scheme disclosure and auditing work, mainly about the program practice.

3、有关施工图集的准备，根据施工图纸，配备有关的规范、规程及图集。Prepare relevant construction drawing, according to the construction drawings, prepare relevant specifications, procedures and atlas.

4、根据新建餐厅的水准点及坐标位置，做好标识并加以保护。

According to the new restaurant leveling points and coordinate location, put on the logo and protect.

5、测量仪器的配备Prepare measuring instrument

(二)、现场准备On-site preparations

1、施工区域铺设施工便道，确保机械设备及材料的进出运输。

Lay the road for construction and ensure mechanical equipment and materials to pass in and out.

2、材料设备进场前，必须对整个作业区进行场地平整，清理地下障碍物。Before material equipment approach, should level the whole construction field, clean the underground obstacles.

3、施工区域基坑内设置排水系统，确保打桩场地无积水。

Set drainage system in foundation pit of construction area, ensure no water while piling.

五、施工方案Construction scheme

(一)、施工技术方案Construction technical scheme

（1）围护技术方案retaining technical plan

根据基坑开挖深度、相临建筑物距离、地质情况及基坑面积，为保证基坑开挖和正常施工，确保临近建筑物，故基坑围护拟采用IV＃12米小齿口拉森钢板桩围护，支撑对撑采用Φ609*12的钢管支撑，角撑采用H400*400*13*21型钢，围檩采用2H588*300*12*30型钢双拼钢围檩，打拉森桩前平整场地，在打桩位置开挖打桩沟槽，钢板桩桩顶标高与自然地坪平，型钢围檩布置在拉森钢板桩下0.5米处，打桩结束基坑开挖前挖去拉森桩内侧1.5米深土体，进行围檩支撑施工(具体详见水平支撑布置图04)。

According to the pit excavation depth, neighboring buildings distance, geological conditions and pit area, in order to ensure the excavation and normal construction and ensure near buildings, we plan to use the IV＃12m reason small rim Larson steel sheet pile for retaining; use Φ609 * 12 steel pipe support for supporting, use H400 * 400 *13 * 21 shaped steel, use 2H588 *12 * 300 *30 shaped steel for the purlin; level the land before piling construction, excavate piling groove, steel pile top and natural floor are at the same level, surrounded Lin decorate in larson steel sheet pile under 0.5 meters, shaped steel purlin is set 0.5m under the ground, after piling finished before excavation dig out the soil for 1.5 meters inside of Lason pile, then start the purlin support construction (for specific construction see horizontal support layout No.04).

（2）工程量及使用期quantities and trial period

打拔12米小齿口拉森钢板桩约216根。使用期根据主体实际施工进度约

50天内。

It needs about216 12m small rim Larson steel sheet pile, the trial period is about 50 days according to the actual construction progress.

(二)、施工测量方案Construction survey scheme

根据基坑围护图纸测定拉森桩位置，打入控制桩，经监理单位复检无误，并办好放样复核手续后方可施工。轴线定位放样误差控制在50mm内。

Determine the Larsen pile position according to the retaining drawing, press the control pile, after checked and approved by Jianli and transmit the recheck permit, then can start the construction. Axis positioning error is controlled in 50mm.

(三)、拉森钢板桩施工方法Larson steel sheet pile construction methods

1、设备选型selection of equipment

打拔桩采用400挖机配备振动锤。

Use 400 excavator with vibratory hammer for pressing and pulling the pile.

2、拉森桩的质量标准Larsen pile quality standard

拉森桩材质检验和外观检查，对不符合形状要求的拉森桩进行矫正，以减少打桩过程中的困难。

Check the Larsen pile material and appearance, correct the pile with bad outlook, to reduce difficulties in piling process.

3、打入法striking method

本工程采用屏风式打入法从内至外遂根打入直至工程结束。

For this project, adopt inner to outer method to strike the pile until the project finishes.

4、钢板桩的打设pressing steel sheet pile

先用打桩机械将拉森桩吊至插桩点进行插桩，插桩时锁口要对准。第一根桩打设要求尽可能准确。

Firstly use piling machinery to lift the Larsen pile to pressing point, and should

be correct. The first pile do be set accurately as far as possible.

打桩时，开始打设的第一、二块钢板桩的打入位置和方向要确保精度，它可以起样板导向作用。

While piling, the first, second pieces of steel sheet pile position and direction should be accurate, it could serve as a model.

以后拉森桩一次打入，第一、二根桩定位准确后，以后钢板桩一次打入至标高。

After first Larsen pile is pressed, first and second piles are in accurate position, the later steel sheet pile is pressed to the elevation for one time .

5、拉森桩的拔除pulling Larsen pile

（1）、作业前拉森桩内外侧土体必须回填压实，外侧土体必须确保有6米的施工作业面。

Before operation the soil inside and outside of Larsen pile must be compacted, ensure 6m wide construction area outside pile.

（2）、作业时对其范围内的重要管线和高压电缆注意观察和保护。

Protect the pipelines and high-voltage cables during construction.

（3）、如拉森桩拔不出，可采取以下措施：A、用振动锤再复打一次，以克服与土的粘着力及咬口间的铁锈等产生的阻力。B、按与板桩的打设顺序相反的次序进行拔桩。C、板桩承受土压一侧的土较密实，在其附近并列打入另一根板桩，可使原来的板桩顺利拔出。D、在板桩两侧开槽，放入粘土浆，拔桩时可减少阻力。

If can not pull out the Larsen pile, we can adopt the following measures: A, use vibratory hammer to strike once again, to avoid adhesion and rust resistance. B, pull the sheet pile in opposite order. C, press another pile nearby one pile, then can pull out another pile successfully. D, dig a slot and put into clay slurry, that can reduce the resistance while pulling pile.

6、施工注意事项Construction announcements

a)、根据现场实际情况安排打桩顺序，振动锤液压夹正后再振打，注意拉

森桩咬口。

According to the actual situation, arrange piling sequence, press after vibratory hammer hydraulic clamp vertically, pay attention to the Larsen pile connection.

b)、打桩时注意桩的垂直度，控制桩顶标高。

Pay attention to pile verticality, control pile top elevation.

c)、围檩施工时要求在拉森桩内侧挖去1.5米深的土体，吊装围檩并焊接

牢固。

For purlin construction, require to dig out the soil inside the Larsen pile in

1.5m depth, hoist purlin and weld firmly.

d)、围檩支撑施工时，围檩及角撑必须全部完成方可开挖。

While purlin construction, we can dig out the soil after the purlin and angle

support are completed.

e)、基坑开挖时派人进行基坑围护变形、位移的监测。Send person to inspect

the pit deformation and displacement while pit excavating.

f)、为避免基坑开挖周边环境影响，在开挖过程中应配合有关监测部门做

好周边马路及管线的监测工作，确保其周边环境安全。

In order to o avoid bad impact by soil excavation, should do well in the monitoring work of road and pipeline while soil excavating, to ensure the surrounding environment safe.

六、技术管理措施T echnical management measures

本工程按全面质量管理要求，派出一批富有实践经验的工程技术人员，担任该工程项目的组织和管理工作。实施全面、全员、全过程的质量管理，并接受业主、设计及监理工程师的质量监督。

This project will send a batch of rich practical experience technical personnel to be responsible for the management and organization work to manage the quality and accept the quality supervision from client/supervisor and Jianli engineer.

(一)、测量管理措施Measuring management measures

1、组织机构：公司技术部测量组；现场测量负责人

Organization: company set up measurement group and send measurement charge person.

2、测量仪器配备：J6经纬仪2台；DZS3-1水平仪1台；钢卷尺50米1把、5米2把；水准标尺5米根；工程检测尺。

Measuring instrument: 2 J6 theodolites, 1 DZS3-1 level, 1 50m steel tape, 2 5m rulers; 2 5m level standard ruler; 1 engineering testing ruler.

3、测量组会同现场监理做好交接手续，并及时做好复验工作。

Handover procedures will be transmitted between measuring group and site Jianli, and timely do well in recheck work.

4、测量放线应遵循“先整体后局部”的原则，先由角桩-轴线定位-围护桩定位。

Measuring and marking the line should follow the "first whole after local" principle, and set the position follow angle pile-grid fixing position-retaining pile positioning principle.

5、保证测量定位准确，用经纬仪进行桩样定位，打桩前应复核测量基线、桩位，桩机就位后，认真对准桩位中心。

Ensure measurement accurate, use the theodolite for pile positioning, before piling should recheck the foundation line and position, after the piling machine is in place, check pile center.

(二)、其它技术管理措施Other technical management measures

1 、实行以项目经理负责制为主体的各岗位质量责任制，做好技术质量监

控工作，认真贯彻各项技术管理制度，开工前落实岗位责任制，做好技术交底。Implement the post responsibility system in which the PM is the center, do well in quality control work, conscientiously implement the various technical and management system, implement post responsibility system before start, completes the technical clarification.

2、技术人员熟悉图纸及施工质量验收规范，使班组施工人员对工程的技术要求明确，对质量要求和设计要求有深刻的了解。

Technical personnel is familiar with drawings and construction quality acceptance standard, make the team construction personnel is clear about engineering technical requirements and understand the quality requirements and design.

3、实行工序管理制度，由施工员及时协调，使各工序紧密衔接，专职质检员检查，验收控制各个工序质量，各班实行自检、互检和交接检验制度，并要特别注重交接班工作。

Implement process management system which is conducted by construction workers to make each sequence to be linked closely, full-time inspectors check and control every working procedure quality, each class implements self-check and mutually transfer check and handover check, and must pay special attention to shift work.

4、对进入施工现场的钢板桩把好验收质量关。

Control the quality of steel sheet pile that enters the site.

（三）、进度保证措施schedule guarantee measures

（1）预备备用打拔桩机械配件，以防桩机损坏，确保施工进度。

Prepare the piling machinery accessories, to prevent damage the piling

machine and construction progress.

（2）施工过程中，及时做好施工进度分析，根据现场施工具体情况，调整

施工进度。确保施工质量施工期。

During the construction process, timely analysis the construction progress,

according to the construction site specific circumstances, adjust

construction progress. Guarantee the construction quality period.

（3）机械施工后，应按排专人进行机械的例保，确保施工机械的正常运作。

After mechanical construction, should arrange assigned person to protect

machinery, to ensure the normal operation of construction machine.

（4）合理安排打桩流程，确保工程正常施工。

Reasonably arrange piling process, and ensure the normal project

construction.

七、施工质量管理措施construction quality control measures

围护工程主要是确保基础工程施工，施工中的质量管理工作尤其重要，按规范和设计要求，特制订如下质量保证措施：

Retaining engineering is majorly to ensure the foundation construction, construction quality management is the most important, according to the specifications and design requirements, hereby make the quality assurance measures as follows:

(一)、工程质量目标engineering quality target

确保围护拉森钢板桩在基坑底板外1米范围，偏差小于20cm。

Ensure retaining Larson steel sheet pile is within 1m outside of foundation pit, deviation is less than 1m.

(二)、工程质量管理原则Engineering quality management principle

1、严格按照工程即定质量目标。尤其是施工过程的控制，必须做好施工的技术交底和复核工作。对于常见的质量通病要重点检查，制定预防措施。

Strictly in accordance with project make the quality goals. Especially in the construction control process, must do well in construction technical clarification and

verifying work. Focus on checking the common quality defects, and make preventive measures.

2、施工全过程始终处于受控状态，严格控制施工过程中的操作质量。

The entire construction process is always in the controlled condition, strictly control the operation quality of construction process.

3、工程质量管理要做到正规化、经常化，确保质量稳步提高。Engineering quality management is to be normalized, regular and to ensure quality improved steadily.

（三）、质量管理具体措施：Quality management concrete measures:

1、强化质量目标管理，落实分层管理，层层负责制度，努力使工程质量始终处于全过程受控状态。

Strengthen the quality target management, implement the layered management, layer upon layer is responsible for the system, and strive to make project quality is always in the entire process controlled condition.

2、针对施工质量控制难点和常见质量通病，对施工全过程进行全面质量管理。

Toward to the project difficulties and common quality defects, control the whole construction process strictly.

3、质量检查验收有证可举，举一反三，保证施工操作质量达到验评后的目标要求。

Prepare bases for the quality acceptance, and make sure the construction quality up to the target requirement.

（四）、主要机械、材料计划表major mechanical and material list

主要机械需用计划表major mechanical list（一）

主要材料需用计划表major material list（二）

八、现场安全文明管理措施Site safety civilized management measures

我公司为搞好本工程的安全生产和文明施工，特制订如下措施：

In order to improve the project safety production and civilized construction, we formulate following measures:

1、建立、健全各级各部门安全生产责任制，责任落实到人，明确安全指标和包

括奖惩办法在内的保证措施。

Establish safe production responsibility system of various departments, implement responsibility to people, including clarify safety targets, and rewards

penalty guaranteeing measures.

2、加强安全教育，对施工操作人员进行安全技术教育，掌握各种技能，熟悉各

工种安全技术操作规程。

Strengthen the safety education to operating personnel, grasps various skills, and be familiar with different work safety technology and operation procedures.

3、对分部分项工程进行安全技术交底、并履行签字手续。

Safety technical disclosure for subdivision work, and fulfill the signature formalities.

4、建立定期安全检查制度，每次检查有记录，以查出的陷患应及时整改，做到

定人、定时间、定措施。

Establish regular safety inspection system, make inspect record and timely rectify, to deposit the person, and set the time, fix measures.

5、建立、健全安全生产机构，认真贯彻安全、预防为主的方针，进行安全生产

管理。

Establish and improve the safe production agency, conscientiously implement the safety and prevention policy, conduct safety production management.

6、吊车起吊作业时应有专人统一指挥，设备及绳索等经经常进行检查。

Lifting cranes should have appointed person with unified command, equipment and ropes should be often checked.

7、本工程安全管理目标：安全无事故，争创一流的文明工地。

The project safety management objectives: no safety accidents, striving for the top grade civilized worksite.