暴雨产流计算(推理公式河南省)

1、推理公式法求暴雨径流洪峰流量（河南省水文手册）（二分法计算）流域面积F河道长度L河道比降J暴雨频率P汇流参数km2km%m流域分区71.220.30.0098132.662.335QPm取值汇流型式洪峰流量n取值SP取值tc取值取值m/sQPm(m/s)mm/hhh1036全面汇流10360.7193.2511.131.99全面汇流部分汇流14440.7193.2511.131.83时段点雨量均值变差系数偏差系数模比系数点面系数面雨量设计值Ht(mm)CvCs/CvKPtPtP(mm)10180.353.52.110.95636.271h400.433.52.430.95893.216h660

2、.443.52.480.966157.8524h1100.553.52.960.975317.46暴雨强度衰减指数SP产流历时tc全面汇流时间mm/hh1n（h）0.1-10.39n0.1-10.4793.25124.71.89n120.5993.2531.51.941-60.59n1-60.7193.2511.11.996-240.50n6-240.5064.0342.82.15河南省汇流参数值、m值水文分区值(mm)m范围取值公式计算值232.5m=0.3110.4061.28354m=0.4280.4301.92465m=0.5650.4072.33354m=0.4090.4061.68

3、586.5m=0.5080.4052.08586.5m=0.5080.4052.08山丘区暴雨时面深tFt关系成果表分区流域t(h)50100200淮干、淮南2410.950.91610.940.89110.930.87、淮北、沙颍、洪汝、丹江、唐白河、伊洛河上游部分2410.940.89610.920.86110.90.83、豫北、豫北2410.880.83610.860.8110.840.78可能最大暴雨(全省)2410.920.87610.910.85110.890.82地面洪水过程线计算序号降雨历时地面洪水过程线计算表(P=1%)t(h)P(mm)P(mm)P排序P-t00000001

4、1.99114.10114.10114.100.800.0023.98139.8925.7925.7913.583.6335.97157.6017.7124.4714.934.9847.96182.0724.4721.6616.806.8559.95203.7321.6619.6018.038.08611.94223.3319.6018.0321.6611.71713.93241.3618.0317.7125.7915.84815.92258.1616.8016.80114.10104.15917.91273.9415.7815.7824.4714.521019.9288.8714.9314.

5、9319.609.651121.89303.0814.2114.2117.717.761223.88316.6613.5813.5815.785.831324.00317.460.800.8014.214.261415161718192021222324山区丘陵区降雨径流关系曲线图线型ImaxK分区适用范围500.83水文分区区。植被较好的淮南各支流浅山区。450.8水文分区区。植被较差的土石山区。400.8水文分区区大部分范围。植被较差，岩石裸露、土层瘠薄的山区。500.83水文分区区。植被较好，有稀疏林木、野草茂密、土层稍后的山区。550.83水文分区区的大部分范围。植被一般的土层较厚地区

6、，如伊河嵩县、洛河长水以下的浅山区。-1600.85水文分区区中的豫北山区和区中的伊洛涧河的黄土丘陵沟壑地区。-2600.85豫北山区中喀斯特溶洞比较发育、并有河谷盆地的石灰岩地区。如小南海水库以上地区。-2蟒河端村以上地区。河南省山区丘陵地区降雨径流关系曲线R集雨区P+Pamm2054736054688440821069082981166010813411810812614380134160142134150168100158186166158176196120180210190180200220140202234212202222244160222254232222242266180244

7、276254244264288200263298276263286310280346386358346370400334400442414400426458380446492460446476510410474524491474506540426490540507490523442506524506540458523540523476540540损失系数PaImax(mm/h)mmmm5.004040P24+PaR24W24mmmmm3357.46291.4620752255Nt单位线t个数h131.99部分汇流时间 1n时降水量2n（h）mm1.14130.521.54122.371.831

8、14.171.5794.0430050010000.880.850.80.860.810.740.830.780.7地面洪水过程线30 25 20 15 10 5 0 020040060080010001200N(时段数)Q(m3/s)山丘区暴雨时面深tFt关系成果表0.850.80.750.820.760.680.780.720.620.790.740.680.760.70.60.730.650.540.840.780.70.80.730.620.750.650.52雨型Q(m3/s)实际采用水文手册0#NAME?24(P24-P18)/6#NAME?23(P24-P18)/6#NAME?2

9、2(P24-P18)/6#NAME?21(P24-P18)/6#NAME?20(P24-P18)/6#NAME?18(P24-P18)/6#NAME?1616#NAME?1414#NAME?1212#NAME?1010#NAME?88#NAME?66#NAME?44#NAME?22#NAME?11#NAME?33#NAME?55#NAME?77#NAME?99#NAME?1111#NAME?1313#NAME?1515#NAME?1717地面洪水过程线计算表(P=1%)#NAME?1918-1-2-296120136128158186160190228188220262216250298240278330266306360290330386312356414336380440426476538486540538分区适用范围水文分区区。植被较好的淮南各支流浅山区。水文分区区。植被较差的土石山区。水文分区区大部分范围。植被较差，岩石裸露、土层瘠薄的山区。水文分区区。植被较好，有稀疏林木、野草茂密、土层稍后的山区。水文分区区的大部分范围。植被一般的土层较厚地区，如伊河嵩县、