工程水文学课后题答案4-2(修正版)
hs Rs I0ΔQg Qs
降雨量(mm)
时段Q实(m3/s)
1.0010.00 5.3045.40 5.300.2710.000.00
2.009.0038.3035.309.000.00
3.0030.0013.1010.109.2720.73
4.00106.00 2.809.5396.47
5.00324.0059.509.80314.20
6.00190.00径流深45.410.07179.93
7.00117.0010.33106.67
8.0080.0010.6069.40
9.0056.0010.8745.13
10.0041.0011.1329.87
11.0034.0011.4022.60
12.0028.0011.6716.33
13.0023.0011.9311.07
14.0020.0012.207.80
15.0017.0012.47 4.53
16.0015.0012.73 2.27
17.0013.0013.000.00
18.0012.00
19.0011.00927.00
20.0010.00
21.009.00Rs=∑Qs*Δt/(1000F)=45.40
假设没有后期不产流,即P0=0
f=(P-R-I0-P0)/t=0.49
f*Δt= 2.932>2.8所以假设不成立
重新假设P0=2.8
f=(P-R-I0-P0)/t=0.50
f*Δt= 2.997<13.1<38.8所以假设成立
Qs1Qs2q q修s(t)s(t-12)s-s(t-12)q(12)q(12)
20.73 5.87 5.90 5.87 5.87 2.94 2.94
90.53 5.9325.6525.6531.52 5.8725.6540.83
288.2925.9181.6681.66113.1831.5281.6640.8310.00
97.4482.5027.6030.00142.18113.1829.00 4.49
78.7827.8822.3220.00162.18142.1820.0010.00 2.36
46.8522.5513.2713.27175.46162.1813.27 1.10
31.7313.418.998.99184.44175.468.99 4.490.42
20.799.08 5.89 5.89190.33184.44 5.890.00
16.65 5.95 4.72 4.50195.05190.33 4.72 2.36
11.57 4.76 3.28 3.28198.33195.05 3.28
7.76 3.31 2.20 2.20200.52198.33 2.20 1.10
5.58 2.22 1.58 1.58202.10200.52 1.58
2.94 1.600.830.83202.93202.100.830.42
1.430.840.400.40203.3420
2.930.40
0.000.410.000.00203.34203.340.000.00
0.000.000.00203.34203.340.00
203.3462.14
204.26204.15
10.0010.00