重庆主城暴雨强度公式(2013版)-计算表

管径1#接口2#接口3#接口4#接口5#接口DN(mm)400500600700800（1~10年）重庆沙坪坝区、渝中区、九龙坡区、大渡口区和北碚区嘉陵江以南暴雨强度公式：q=15接出口管接出口坡实际排水接口号设计流量重现期径度能力DN(mm)iq'(L/s)q(L/s)P(年)1#接口4000.005191.4124.222#接口5000.01490.9206.923#接口6000.01798.2376.624#接口7000.011204.1610.525#接口8000.011719.1920.92(按满流计算）设计流量：q=v*π*（D/4）2 设计流速：v=1/n*R2/3*I1/2排水管坡设计流量流速粗糙系数度iq(L/s)v（m/s）n0.005191.41.520.0100.01490.92.500.0100.01798.22.820.0100.011204.13.130.0100.011719.13.420.010管径1#接口2#接口3#接口4#接口5#接口DN(mm)400500600700800（10~100年）重庆沙坪坝区、渝中区、九龙坡区、大渡口区和北碚区嘉陵江以南暴雨强度公式：q=1接出口管接出口坡实际排水接口号设计流量重现期径度能力DN(mm)iq'(L/s)q(L/s)P(年)1#接口4000.005191.4186.8202#接口5000.01490.9311.4203#接口6000.01798.2566.7204#接口7000.011204.1918.5205#接口8000.011719.11385.520管径1#接口2#接口3#接口4#接口5#接口DN(mm)400500600700800(按满流计算）设计流量：q=v*π*（D/4）2 设计流速：v=1/n*R2/3*I1/2排水管坡设计流量流速粗糙系数度iq(L/s)v（m/s）n0.005191.41.520.0100.01490.92.500.0100.01798.22.820.0100.011204.13.130.0100.011719.13.420.010接口号1#接口2#接口3#接口4#接口5#接口重庆巴南、南岸暴雨强度公式：q=1737.388（1+0.724lgP）/（t+7.149)接出口管接出口坡实际排水设计流量重现期径度能力DN(mm)iq'(L/s)q(L/s)P(年)4000.005191.4115.525000.01490.9192.526000.01798.2350.327000.011204.1567.828000.011719.1856.520.692管径1#接口2#接口3#接口4#接口5#接口DN(mm)400500600700800(按满流计算）设计流量：q=v*π*（D/4）2 设计流速：v=1/n*R2/3*I1/2排水管坡设计流量流速粗糙系数度iq(L/s)v（m/s）n0.005191.41.520.0100.01490.92.500.0100.01798.22.820.0100.011204.13.130.0100.011719.13.420.010/（t+8.534)0.551降雨历时汇水面积径流系数t(min)1010101010S(m)6000100001820029500445002雨水沟h=D

1#接口2#接口3#接口4#接口5#接口Ψ0.650.650.650.650.65mm300300300300300(按满流计算）设沟宽水深mm200200200200200π*（

1/n*R2/3*I1/2水力半径水流断面R(m)0.1000.1250.1500.1750.200A(m2)0.1260.1960.2830.3850.503湿周χ(m)1.2571.5711.8852.1992.513：q=1563.609（1+0.633lgP）/降雨历时汇水面积径流系数t(min)1010101010S(m2)600010000182002950044500Ψ0.650.650.650.650.651/n*R2/3*I1/2水力半径水流断面R(m)0.1000.1250.1500.1750.200A(m2)0.1260.1960.2830.3850.503湿周χ(m)1.2571.5711.8852.1992.513：q=1467.622（1+0.997lgP）/降雨历时汇水面积径流系数t(min)1010101010S(m2)600010000182002950044500Ψ0.650.650.650.650.651/n*R2/3*I1/2水力半径水流断面R(m)0.1000.1250.1500.1750.200A(m)0.1260.1960.2830.3850.5032湿周χ(m)1.2571.5711.8852.1992.5139)0.692降雨历时汇水面积径流系数t(min)1010101010S(m2)600010000182002950044500Ψ0.650.650.650.650.651/n*R2/3*I1/2水力半径水流断面R(m)0.1000.1250.1500.1750.200A(m2)0.1260.1960.2830.3850.503湿周χ(m)1.2571.5711.8852.1992.513算）设计流量：q=v*π*（D/4）2 设计流速：v=1/n*R2/3*I1/2暗沟坡度i0.0050.0050.0050.0050.005流速v（m/s）0.900.900.900.900.90流量q(L/s)53.9053.9053.9053.9053.90粗糙系数水力半径水流断面n0.0140.0140.0140.0140.014R(m)0.0750.0750.0750.0750.075A(m)0.060.060.060.060.062湿周χ(m)0.80.80.80.80.8