暴雨產(chǎn)流計(jì)算(推理公式河南省)

1、推理公式法求暴雨徑流洪峰流量（河南省水文手冊(cè)）（二分法計(jì)算）流域面積F河道長(zhǎng)度L河道比降J暴雨頻率P匯流參數(shù)km2km%m流域分區(qū)71.220.30.0098132.662.335QPm取值匯流型式洪峰流量n取值SP取值tc取值取值m/sQPm(m/s)mm/hhh1036全面匯流10360.7193.2511.131.99全面匯流部分匯流14440.7193.2511.131.83時(shí)段點(diǎn)雨量均值變差系數(shù)偏差系數(shù)模比系數(shù)點(diǎn)面系數(shù)面雨量設(shè)計(jì)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暴雨強(qiáng)度衰減指數(shù)SP產(chǎn)流歷時(shí)tc全面匯流時(shí)間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河南省匯流參數(shù)值、m值水文分區(qū)值(mm)m范圍取值公式計(jì)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山丘區(qū)暴雨時(shí)面深tFt關(guān)系成果表分區(qū)流域t(h)50100200淮干、淮南2410.950.91610.940.89110.930.87、淮北、沙潁、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地面洪水過(guò)程線計(jì)算序號(hào)降雨歷時(shí)地面洪水過(guò)程線計(jì)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山區(qū)丘陵區(qū)降雨徑流關(guān)系曲線圖線型ImaxK分區(qū)適用范圍500.83水文分區(qū)區(qū)。植被較好的淮南各支流淺山區(qū)。450.8水文分區(qū)區(qū)。植被較差的土石山區(qū)。400.8水文分區(qū)區(qū)大部分范圍。植被較差，巖石裸露、土層瘠薄的山區(qū)。500.83水文分區(qū)區(qū)。植被較好，有稀疏林木、野草茂密、土層稍后的山區(qū)。550.83水文分區(qū)區(qū)的大部分范圍。植被一般的土層較厚地區(qū)

6、，如伊河嵩縣、洛河長(zhǎng)水以下的淺山區(qū)。-1600.85水文分區(qū)區(qū)中的豫北山區(qū)和區(qū)中的伊洛澗河的黃土丘陵溝壑地區(qū)。-2600.85豫北山區(qū)中喀斯特溶洞比較發(fā)育、并有河谷盆地的石灰?guī)r地區(qū)。如小南海水庫(kù)以上地區(qū)。-2蟒河端村以上地區(qū)。河南省山區(qū)丘陵地區(qū)降雨徑流關(guān)系曲線R集雨區(qū)P+Pamm2054736054688440821069082981166010813411810812614380134160142134150168100158186166158176196120180210190180200220140202234212202222244160222254232222242266180244

7、276254244264288200263298276263286310280346386358346370400334400442414400426458380446492460446476510410474524491474506540426490540507490523442506524506540458523540523476540540損失系數(shù)PaImax(mm/h)mmmm5.004040P24+PaR24W24mmmmm3357.46291.4620752255Nt單位線t個(gè)數(shù)h131.99部分匯流時(shí)間 1n時(shí)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地面洪水過(guò)程線30 25 20 15 10 5 0 020040060080010001200N(時(shí)段數(shù))Q(m3/s)山丘區(qū)暴雨時(shí)面深tFt關(guān)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)實(shí)際采用水文手冊(cè)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地面洪水過(guò)程線計(jì)算表(P=1%)#NAME?1918-1-2-296120136128158186160190228188220262216250298240278330266306360290330386312356414336380440426476538486540538分區(qū)適用范圍水文分區(qū)區(qū)。植被較好的淮南各支流淺山區(qū)。水文分區(qū)區(qū)。植被較差的土石山區(qū)。水文分區(qū)區(qū)大部分范圍。植被較差，巖石裸露、土層瘠薄的山區(qū)。水文分區(qū)區(qū)。植被較好，有稀疏林木、野草茂密、土層稍后的山區(qū)。水文分區(qū)區(qū)的大部分范圍。植被一般的土層較厚地區(qū)，如伊河嵩縣、