暴雨产流计算(推理公式广东省)

1、推理公式法求暴雨径流洪峰流量（广东省水文手册）（图解法求汇流时间）流域面积F河道长度L河道比降J暴雨频率P汇流参数产流参数(mm/h)km2km实际值%mfc29539.560.00271284.101.1044.50时段点雨量均值CvCs/CvKP点面系数面雨量设计值Ht(mm)tPtP(mm)1h670.413.52.350.762119.996h1230.473.52.600.842269.6824h1780.523.52.830.904454.7572h2450.513.52.780.935636.84汇流参数分区 产流参数分区雨型分区点面关系分区高丘区内陆北江上游暴雨低区H6H24-

2、H6H3d-H24时段降雨(mm)hN(mm)h(mm)269.68185.07182.09306.24317.1610.92计算24小时设计雨量的时程分配时程(h)123456毛雨深(mm)8.8811.4717.4013.1417.2122.39净雨深ht(mm)4.386.9712.908.6412.7117.89ht排序(mm)65.0845.6630.5623.0133.5344.85ht(mm)65.08110.74141.30164.31197.84242.69Q试算(m3/s)533745413863336932453317t反算(h)8.378.719.079.399.489

3、.42最大24小时降雨概化过程线时段时程(h)123456占H6%占(H24-H6)%4.86.29.47.19.312.1汇流参数m与流域特征系数关系见下表m分区计算结果100100海南1.331.161.33低丘平原0.880.740.88高丘区1.100.951.10山区1.811.621.81广东省暴雨点面关系表：设计暴雨的t流域面积F（km2）t暴雨历时F（km2）123456t1020304050601h0.9760.960.9450.9310.920.9066h0.9870.97950.97060.96250.9560.947524h10.98850.9830.980.9760.

4、9723d110.98860.9850.9830.9805广东省产流分区fc、f3d参数表分区计算结果降雨面积F(km2)100降雨面积F(km2)100fc(mm/h)f3d(mm/h)fc(mm/h)f3d(mm/h)fc(mm/h)f3d(mm/h)内陆4.52.54.52.552.5粤东沿海、珠江三角洲 42.742.74.52.7粤西沿海52.952.95.52.9琼雷台地7.537.5383海南山丘区4.32.94.32.952.924h暴雨洪水概化过程线径流历时tQt/Qm广东省概化洪水过程线表ht/Qt/Qm51.0055.06247.70.40.161.142477.1117

5、1.28272.520.1181.4299.130.0491.554分段单元洪水过程线的推求洪峰排序净雨量ht降雨历时t单元洪水总量单元洪峰历时单元洪峰流量mmhWi(万m3)+N(h)Qmi(m3/s)第1d32.4724957.935152.1h前35.1731037.614411.7第2d75.41242224.635353.1h后11.8110348.42192.2第3d306.24119034.0222281.3洪峰序号起始峰顶终止第1d时间t(h)2435流量(m3/s)152.1h前时间t(h)485162流量(m3/s)411.7第2d时间t(h)244859流量(m3/s)3

6、53.1h后时间t(h)627383流量(m3/s)92.2第3d时间t(h)516273流量(m3/s)2281.3广东省暴雨径流查算图表分区与暴雨、产流、汇流分区对应表广东省暴雨径流查算图表分区暴雨、产流、汇流分区雨型分区雨型分区设计暴雨定点定面关系（tF关系）产流推理公式韩江m粤东沿海东江上游韩江韩江暴雨低区内陆大陆东江中下游粤东沿海粤东沿海暴雨高区粤东沿海、珠江三角洲大陆北江上游东江上游东江上游暴雨低区内陆大陆北江中下游东江中下游东江中下游暴雨低区内陆大陆珠江三角洲北江上游北江上游暴雨低区内陆大陆西江北江中下游北江中下游暴雨低区内陆大陆粤西沿海1珠江三角洲珠江三角洲暴雨低区粤东沿海、珠

7、江三角洲大陆雷州半岛2流溪河、增江 珠江三角洲暴雨低区内陆大陆海南岛3潭江珠江三角洲暴雨高区粤西沿海大陆西江西江暴雨低区内陆大陆点面关系分区1漠阳江粤西沿海暴雨低区粤西沿海大陆暴雨高区2鉴江、九州江粤西沿海暴雨低区粤西沿海大陆暴雨低区雷州半岛雷州半岛暴雨低区琼雷台地大陆1琼北地区海南岛暴雨低区琼雷台地海南2海南丘陵海南岛暴雨高区海南山丘区海南3海南山区海南岛暴雨高区海南山丘区海南广东省分区最大24h设计雨型（暴雨时程分配）表雨型分区时间(h)12345韩江占H6%粤东沿海占H6%东江上游占H6%第1d东江中下游占H6%北江上游占H6%北江中下游占H6%珠江三角洲占H6%西江占H6%粤西沿海占H

8、6%雷州半岛占H6%海南岛占H6%韩江占(H24-H6)%7.54.44.75.23.7粤东沿海占(H24-H6)%3.72.44.345.7东江上游占(H24-H6)%4.16.13.40.52.9东江中下游占(H24-H6)%2.32.823.12.3北江上游占(H24-H6)%4.86.29.47.19.3北江中下游占(H24-H6)%7.27.235.31.7珠江三角洲占(H24-H6)%1.52.93.68.810.7西江占(H24-H6)%55.54.97.79.9粤西沿海占(H24-H6)%4.34.13.232雷州半岛占(H24-H6)%4.80.92.11.51.9海南岛占(

9、H24-H6)%2.94.33.13.34.3广东省分区最大3d设计雨型（暴雨时程分配）表雨型分区时间(6h)1d2d3d12韩江占H6%粤东沿海占H6%东江上游占H6%东江中下游占H6%北江上游占H6%北江中下游占H6%珠江三角洲占H6%西江占H6%粤西沿海占H6%雷州半岛占H6%海南岛占H6%韩江占(H24-H6)%粤东沿海占(H24-H6)%东江上游占(H24-H6)%东江中下游占(H24-H6)%北江上游占(H24-H6)%北江中下游占(H24-H6)%珠江三角洲占(H24-H6)%西江占(H24-H6)%粤西沿海占(H24-H6)%雷州半岛占(H24-H6)%海南岛占(H24-H6)

10、%韩江占(H3d-H24)%59.840.24.61.9粤东沿海占(H3d-H24)%38.461.62.74.7东江上游占(H3d-H24)%52.547.514.313.9东江中下游占(H3d-H24)%73.526.59.99.2北江上游占(H3d-H24)%30.169.95.513.6北江中下游占(H3d-H24)%34.465.611.61.3珠江三角洲占(H3d-H24)%63.336.712.316.1西江占(H3d-H24)%69.330.73.824.2粤西沿海占(H3d-H24)%51.348.77.110.6雷州半岛占(H3d-H24)%51.848.214.514.5

11、海南岛占(H3d-H24)%45.354.79.76.8集雨区设计暴雨的t流域面积F（km2）t点面关系分区暴雨历时F（km2）t1020304050暴雨低区1h0.9760.960.9450.9310.92暴雨高区1h0.9680.9470.930.9140.898暴雨低区6h0.9870.97950.97060.96250.956暴雨高区6h0.9820.9680.9570.9460.935暴雨低区24h10.98850.9830.980.976暴雨高区24h10.9860.9810.9740.969暴雨低区3d110.98860.9850.983暴雨高区3d10.9910.9840.97

12、90.974衰减指数计算1-6h6-24hf3d0.440.592.5n0.550.62Sp考虑雨程分配一查图法成果公式法直接求解(mm/h)汇流时间洪峰流量汇流时间洪峰流量(h)Q地面max(m3/s)（h）QPm(m/s)10.14247710.382250137.35公式法直接求解过程1-6h6-24h汇流时间（h）10.2410.38洪峰流量QPm(m/s)238122501(h)0(h)N(h)33117891011121369.5850.1635.0627.5138.0349.3526.8365.0845.6630.5623.0133.5344.8522.3322.3317.891

13、2.718.6412.908.646.97265.02282.91295.62304.26317.16325.80332.7731052900269424952365222720999.589.759.9310.1210.2610.4110.577891011121325.818.613.010.214.118.314.5100 90 80 70 60 50 40 30 20 10 0 05001000150020002500t(h)Q(m3/s)产流参数(mm/h)最大24小时降雨概化过程线789101112137080901002003004000.8940.8840.8740.8620.

14、8030.760.7340.940.9350.9280.92250.87750.840.820.9680.9640.9610.9570.9280.9030.8880.97750.9750.97250.970.9510.9340.922F（km2）51234567891011678910111213.312.417.223.417.216.521.121.620.810.513.512.525.818.61310.214.118.310.916.619.720.517.414.913.416.110.717.422.519.93.43.56.45.73.86.310.16.478.77.55.7

15、5.27.46.53.912.1233.36.96.67.710.811.3131.92.86.15.88.612.213.84.92.73.82.32.77.4124.55.65.47.410.210.210.7345678910010010010010010010010010010028.935.835.326.541.53223.550.825.716.45231.648.926.438.335.338.84219.246292518.549.332.216.130.95322.449.528.123.429.916.111.319.726.5717.324.715.139.38.46.

16、64.417.619.97.42513.18.425.510.92413.415.925.49.213.120.59.910.81224.514.414.430.9607080901002003000.9060.8940.8840.8740.8620.8030.760.8840.8720.8570.8450.8370.7820.7440.94750.940.9350.9280.92250.87750.840.9250.9170.9060.8960.890.840.80.9720.9680.9640.9610.9570.9280.9030.9640.9580.9510.9470.9430.908

17、0.8780.98050.97750.9750.97250.970.9510.9340.970.9660.960.9570.9530.9240.9F（km2）14151617181920212213.146.484.816.484.818.147.225.372.788.641.980.311.980.313.642.720.874.381.980.311.980.313.642.720.87337.15339.13339.44341.42341.73345.37348.09348.96348.9619751854174016471557149114271363130110.7310.9011

18、.0711.2311.3911.5111.6411.7711.911415161718192021227.13.52.63.52.64.43.92.91.5最大24小时降雨概化过程线100 90 80 70 60 50 40 30 20 10 0 05001000150020002500t(h)Q(m3/s)14151617181950060070080090010000.7130.6960.680.6660.6520.640.8050.790.7780.7660.7550.7450.8760.8660.8560.8470.8380.830.9120.9040.8960.8880.8810.875F（km2）13141516171819202112.618.516.62113.118.214.818.215.112.522.916.58.822.124.221.112.211.616.915.615.215.217.819.316.212.119.618.815.617.712.912.915.120.921.416.88.27.56.47.463.89.711.511.38.65.44.36.555.67.46.87.69.212.38.77.16.15.914.57.13.52.63.52.64.43.92.99.75.259.77.88.85.55.44.83