卡四支渠梯形渠道水力计算.xls

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1、砼梯形渠道水力计算 桩号 设计流量 底宽水深超高纵坡糙率系数湿周面积边坡系数水力半径谢才系数渠高流速 Q(m3/s)B(m) h(m)h(m)Inx(m)A(m2)MRCm/s 0+0000+5000.410.30.32 0.280.00740000.0161.450.251.50.1746.590.601.66 0+5002+4800.420.30.38 0.300.00354000.0161.670.331.50.2047.710.681.26 A=B*h+M*H*H0.26 X=B+2*H*1+M2 R=A/X 砼梯形渠道水力计算 桩号 设计流量 底宽水深超高纵坡糙率系数湿周面积边坡系数

2、水力半径谢才系数渠高流速 Q(m3/s)B(m) h(m)h(m)Inx(m)A(m2)MRCm/s 0+0000+50012.051.21.22 0.510.01398000.02755.603.701.50.6633.931.733.26 0+5002+4800.520.30.42 0.310.00354000.0161.810.391.50.2248.390.731.34 A=B*h+M*H*H0.49 X=B+2*H*1+M2 R=A/X 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(

3、m2)MRC 0+836.52+234.6 1.500.601.200.500.00555600.0163.00 0.7200.2449.26 2+236.53+308 5.001.620.980.450.00031000.0175.17 5.551.51.0759.52 3+3086+2505.001.520.920.430.00044500.0174.834.841.51.0058.86 6+2506+9005.001.520.920.430.00044500.0174.834.841.51.0058.86 6+90014+199 5.001.550.940.430.00040000.01

4、74.93 5.041.51.0259.05 14+19916+350 5.001.630.990.450.00030000.0175.20 5.621.51.0859.59 16+35020+480 5.001.590.960.440.00035000.0175.05 5.301.51.0559.30 20+48021+721 5.001.550.940.430.00040000.0174.93 5.041.51.0259.05 21+72124+678 5.001.550.940.430.00040000.0174.93 5.041.51.0259.05 24+67827+126 5.001.550.940.430.00040000.0174.93 5.041.51.0259.05 27+12629+362 0.500.480.340.280.00241000.0171.56 0.451.250.2947.81 0.500.370.160.240.00530000.0171.140.362.250.3248.60 0.500.300.090.220.00840000.0170.920.333.250.3549.46 流速 v(m/s) 2.09 0.90 1.03 1.03 0.99 0.89 0.94 0.99 0.99 0.99 1.11 1.38 1.53