P=00
1.32
33.93
1.80
67.87
2.40
135.74
2.94
271.48
3.78
407.21
4.80
542.95
5.93
644.76
7.19
678.69
8.39
644.76
9.77
542.95
11.81
407.21
14.81
271.48
19.66
135.74
25.18
1.998 2.121 2.305 2.734 2.118 2.212 2.335
499.41 411.02 320.79 194.33 489.36 405.92 317.23
Qm
4.73 4.50 4.23 3.73 4.70 4.49 4.22
验算
ψ
τ
τn3
Qp
0.045936341 0.052548381 0.061999459 0.086334157 0.046416195 0.052274533 0.061536412
Htp
380.79 306.67 232.49 137.59 335.79 281.41 225.67
t=1-6h
Qp
499.41 411.02 320.79 194.33 489.36 405.92 317.23
Wp（万m ³）
1376.06 1094.70 819.68 479.04 1154.25 954.94 755.85
-0.274557823 3.0716779 -0.275104022 3.1915656 -0.275803928 3.3439505 -0.278095567 3.6870571 -0.276682603 3.065531 -0.276322519 3.1814113 -0.277180269 3.3635863
3.08840872 3.259040583 3.486536611 3.977594316 3.147547043 3.299779171 3.510141201
τ0n3
2.60055503044 2.74087496957 2.93522465238 3.32645179295 2.58444604725 2.72550398373 2.91180285673
杨村乡防洪治理 设计短历时暴雨Htp（mm）
P=20%
P=50%
21.35 65.52 125.4 151.8
16.625 48.36 82.65 98.9
29.925 89.96 176.7 224.25
25.9 78.52 151.05 188.6
J1/3
F1/4
θ
m1
m2
0.390658541 2.576533317 11.43893507 0.5228027 0.31798
0.949470025 0.942196781 0.931800595 0.905032428 0.948942186 0.942498013 0.932309947
-0.317211817 3.1396265 -0.317806968 3.3212972 -0.318692575 3.5659132 -0.319541838 4.1064648 -0.315267786 3.199984 -0.316440153 3.3622003 -0.317577912 3.5891496
3.25472576 3.409242227 3.615196282 4.062548166 3.273163278 3.422159195 3.627020247
τ0n2
1.97613204008 2.09406017458 2.26953242294 2.67123220123 2.09390008900 2.18381713161 2.29936694039
点面折 减系数
25
74.3
6h
1 0.9776507
24h
1 0.9907973
100 0.966 0.986
底堡 建和
水文比 拟法 km2
511
74.300
1280 353.93
2 3170
876.54
5.0880626
684.45 718.93
15.53097345 16.3133651
ψ
τ
τn1
P
S1p
τ0
5.00% 10.00% 20.00% 50.00%
86.840 76.440 65.520 48.360 89.960 78.520 65.520
2.7451535 2.834108142 2.945459905 3.177788685 2.721035612 2.815149833 2.945459905
工程名称：
暴雨参数： 流域特征值
时段（h）
1/6 1 6 24
暴雨均值 （mm）（查水
文图册） 17.5 52 95.00
115.00
Cv（查水文图册）
0.3 0.35 0.48 0.5
Cs/Cv
3.5 3.5 3.5 3.5
F（km2） 44.07
L（km） 11.5138
J（‰） 59.62
暴雨公式指数及参 数（只有24h值）
设计洪水计算（n3试算）(t=6-24h)：
P
S3p
τ0
5.00% 10.00% 20.00% 50.00%
140.966 119.816 97.960 65.537 129.857 113.369 94.591
2.432026249 2.532896608 2.663691307 2.945270435 2.482449156 2.56816647 2.687101647
22.05 65.52 123.5 151.8
S2p
86.845
76.444 65.523 48.362 89.965 78.524 65.523
S3p
140.966
119.816 97.960 65.537
129.857 113.369
94.591
up
2.490 2.297 2.069 1.701 2.332 2.174 1.999
设计洪水过程线（t=1/6-1h）：
x 0 0.11 0.15 0.2 0.245 0.315 0.4 0.495 0.6 0.7 0.815 0.985 1.235 1.64 2.1 2.58 3.85
y 0 0.05 0.1 0.2 0.4 0.6 0.8 0.95 1 0.95 0.8 0.6 0.4 0.2 0.1 0.05 0
67.87
30.93
33.93
46.16
0.00
基流计算： Q0
0.580717344
P=33.3% t 0.00 1.33 1.81 2.42 2.96 3.80 4.83 5.98 7.25 8.45 9.84 11.90 14.92 19.81 25.36 31.16 46.50
Q 0.00 34.21 68.42 136.83 273.66 410.49 547.32 649.94 684.15 649.94 547.32 410.49 273.66 136.83 68.42 34.21 0.00
3.0314304 3.146634539 3.292888973 3.618719844 3.02784465 3.139276463 3.312530968
τ0n1
1.48704417842 1.51956593929 1.56205344838 1.68158873940 1.53319520693 1.54636566029 1.59965868221
0.937674237 0.930781149
0.9211628 0.896655473 0.940290425 0.933481235 0.922833922
-0.292157242 3.3164971 -0.294344283 3.481989 -0.297417946 3.7045792 -0.303113688 4.1991206 -0.296143142 3.3333886 -0.297166182 3.4928812 -0.298173545 3.7149179
2.637 2.785 2.993 3.420 2.620 2.769 2.967
621.82 496.53 373.67 212.47 576.21 472.80 364.09
Qm
4.99 4.72 4.40 3.82 4.90 4.66 4.37
验算
径流系数α
0.82 0.81 0.8 0.79 0.78 0.77 0.76
径流系数 α
0.81 0.85 0.84 0.83 0.85 0.83 0.79
Htp
819.91 703.70 584.03 388.32 770.25 683.46 548.41
t=1/6-1h
Qp
Wp（万m³）
678.69 582.32 483.21 326.93 684.15 589.79 472.02
设计洪水过程线图：
60.00
t=1/6-1h
<0.1m³/s，忽略不计
50.00 40.00 30.00 20.00 10.00
0.00 0.00
5.00
10.00
15.00
20.00
25.00
P=5%
27.475 86.84 185.25 228.85
P=10%
24.5 76.44 155.8 190.9
Qp
0.04263907 0.045665213 0.049330933 0.059145343 0.039747971 0.042822194 0.048806044