暴雨产流计算(推理公式河南省)

流域面积F河道长度L河道比降J暴雨频率Pkm2km%θm71.220.30.0098132.662.335QPm取值洪峰流量n取值SP取值tc取值m³/sQPm(m³/s)mm/hh1036全面汇流10360.7193.2511.13全面汇流部分汇流14440.7193.2511.13点雨量均值变差系数偏差系数模比系数点面系数Ht(mm)CvCs/CvKPαt10′180.353.52.110.9561h400.433.52.430.9586h660.443.52.480.96624h1100.553.52.960.975SP产流历时tcmm/hhβ0.1-10.39n0.1-10.4793.25124.7n120.5993.2531.5β1-60.59n1-60.7193.2511.1β6-240.50n6-240.5064.0342.8范围取值公式计算值Ⅰ2～32.5m=0.311θ0.4061.28Ⅱ3～54m=0.428θ0.4301.92Ⅲ4～65m=0.565θ0.4072.33Ⅳ3～54m=0.409θ0.4061.68Ⅴ5～86.5m=0.508θ0.4052.08Ⅵ5～86.5m=0.508θ0.4052.08分区t(h)501002410.95610.94110.93汇流参数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τ）时段m水文分区μ值(mm)河南省汇流参数μ值、m值暴雨强度衰减指数汇流型式山丘区暴雨时面深tㅡFㅡαt关系成果表淮干、淮南Ⅰ流域2410.94610.92110.92410.88610.86110.842410.92610.91110.89降雨历时t(h)P(mm)△P(mm)00000011.99114.10114.10114.100.8023.98139.8925.7925.7913.5835.97157.6017.7124.4714.9347.96182.0724.4721.6616.8059.95203.7321.6619.6018.03611.94223.3319.6018.0321.66713.93241.3618.0317.7125.79815.92258.1616.8016.80114.10917.91273.9415.7815.7824.471019.9288.8714.9314.9319.601121.89303.0814.2114.2117.711223.88316.6613.5813.5815.781324.00317.460.800.8014.21141516171819202122Ⅴ、Ⅵ豫北、豫北淮北、沙颍、洪汝、丹江、唐白河、伊洛河上游部分Ⅱ、Ⅲ、Ⅳ序号地面洪水过程线计算表(P=1%)△P排序可能最大暴雨(全省)地面洪水过程线计算2324山区丘陵区降雨径流关系曲线图线型ImaxKⅠ500.83Ⅱ450.8Ⅲ400.8Ⅳ500.83Ⅴ550.83Ⅵ-1600.85Ⅵ-2600.85Ⅵ-2河南省山区丘陵地区降雨径流关系曲线R集雨区mmⅢⅠⅡⅢⅣ20547360546840821069082986010813411810812680134160142134150100158186166158176120180210190180200140202234212202222160222254232222242180244276254244264200263298276263286280346386358346370334400442414400426380446492460446476410474524491474506426490540507490523442506524506540458523540523476540540P+Pa分区适用范围水文分区Ⅰ区。植被较好的淮南各支流浅山区。蟒河端村以上地区。水文分区Ⅱ区。植被较差的土石山区。水文分区Ⅲ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Ⅳ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Ⅴ区的大部分范围。植被一般的土层较厚地区，如伊河嵩县、洛河长水以下的浅山区。水文分区Ⅵ区中的豫北山区和Ⅴ区中的伊洛涧河的黄土丘陵沟壑地区。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。损失系数PaImax流域分区μ(mm/h)mmmmⅢ5.004040τ取值P24+PaR24W24hmmmmm31.99357.46291.46207522551.83面雨量设计值N△tPtP(mm)单位线△t个数h36.27131.9993.21157.85317.46全面汇流时间部分汇流时间τ1n时降水量τ1n（h）τ2n（h）mm1.891.14130.521.941.54122.371.991.83114.172.151.5794.0420030050010000.910.880.850.80.890.860.810.740.870.830.780.7汇流参数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τ）山丘区暴雨时面深tㅡFㅡαt关系成果表020040060080010001200024Q(m3/s)0.890.850.80.750.860.820.760.680.830.780.720.620.830.790.740.680.80.760.70.60.780.730.650.540.870.840.780.70.850.80.730.620.820.750.650.52△P-△t▪μQ(m3/s)实际采用水文手册000.000.024(P24-P18)/63.6336.123(P24-P18)/64.9849.622(P24-P18)/66.8568.121(P24-P18)/68.0880.420(P24-P18)/611.71116.518(P24-P18)/615.84157.51616104.151035.9141414.52144.412129.6596.010107.7677.2885.8358.0664.2642.444221133557799111113131515雨型地面洪水过程线计算表(P=1%)17171918ⅤⅥ-1Ⅵ-2Ⅵ-28496120136116128158186143160190228168188220262196216250298220240278330244266306360266290330386288312356414310336380440400426476538458486540510538540P+Pa分区适用范围水文分区Ⅰ区。植被较好的淮南各支流浅山区。蟒河端村以上地区。水文分区Ⅱ区。植被较差的土石山区。水文分区Ⅲ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Ⅳ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Ⅴ区的大部分范围。植被一般的土层较厚地区，如伊河嵩县、洛河长水以下的浅山区。水文分区Ⅵ区中的豫北山区和Ⅴ区中的伊洛涧河的黄土丘陵沟壑地区。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。468101214N(时段数)地面洪水过程线