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梯形渠道最佳水力计算桩号设计流量水深底宽超高纵坡糙率系数湿周面积边坡系数水力半径谢才系数Q(m3/s)h(m)B(m)h(m)Inx(m)A(m2)MRC0+836.5~2+234.61.500.601.200.500.00555600.0163.000.7200.2449.262+236.5~3+3085.001.620.980.450.00031000.0175.175.551.51.0759.523+308~6+2505.001.520.920.430.00044500.0174.834.841.51.0058.866+250~6+9005.001.520.920.430.00044500.0174.834.841.51.0058.866+900~14+1995.001.550.940.430.00040000.0174.935.041.51.0259.0514+199~16+3505.001.630.990.450.00030000.0175.205.621.51.0859.5916+350~20+4805.001.590.960.440.00035000.0175.055.301.51.0559.3020+480~21+7215.001.550.940.430.00040000.0174.935.041.51.0259.0521+721~24+6785.001.550.940.430.00040000.0174.935.041.51.0259.0524+678~27+1265.001.550.940.430.00040000.0174.935.041.51.0259.0527+126~29+3620.500.480.340.280.00241000.0171.560.451.250.2947.810.500.370.160.240.00530000.0171.140.362.250.3248.60