水闸计算书.xls
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1、本计算书计算公式及方法主要依据水闸设计规范SL265-2001中有关规定计算。以下简称“规范”一一、水水力力计计算算(1 1)节节制制分分水水闸闸基基本本资资料料(依依据据渠渠道道设设计计)编号名称流量(m3/s)水深(m)流速(m/s)分水流量(m3/s)设计加大设计加大设计加大左岸右岸49+548节制分水闸闸前5.006.001.641.780.700.731.001.00闸后4.005.001.481.640.660.70515+891节制分水闸闸前4.005.001.481.640.660.701.001.00闸后3.004.001.411.600.620.66617+626节制分水闸
2、闸前3.004.001.411.600.620.661.001.00闸后2.002.501.241.360.560.59722+532节制分水闸闸前2.002.501.241.360.560.591.001.00闸后1.001.300.911.030.470.50(2 2)节节制制分分水水闸闸过过水水流流量量计计算算计算公式:依据“规范”第51页(A.0.1-1)。B0=Q/m(2g)0.5(H0)3/2式中: B0-闸孔总净宽(m);Q-过闸流量(m3/s);-堰流淹没系数,按表A.0.1-2查得;-堰流侧收缩系数,按表A.0.1-1查得;m-堰流流量系数,可用0.385;g-重力加速度,可
3、采用9.81(m/s2);H0-堰上水深(m)。编号名称下游水深计算上游流速行进水头堰上水头比值上游一半闸闸宽宽计算流量设计流量上游雍高 原上游水深hs(m)水深H(m)v(m/s)v2/2g(m)H0(m)hs/H0水深宽bs(m)b b0 0(米米)Q(m3/s)Q(m3/s)(m)(m)49+548节制闸设计3.763.7600.950.053.810.987925.0037.0037.001.090.39200.254.002.1201.64加大1.641.6680.730.031.700.96754.402.502.500.940.575.025.00-0.112 1.78515+8
4、91节制闸设计1.411.4110.660.021.430.98383.952.502.500.940.443.033.00-0.069 1.48加大1.601.6090.700.021.630.97924.302.502.500.940.484.034.00-0.031 1.64617+626节制闸设计1.241.2410.620.021.260.98373.152.002.000.940.442.012.00-0.169 1.41加大1.361.3660.660.021.390.97973.372.002.000.940.482.512.50-0.234 1.60722+532节制闸设计0
5、.980.9710.560.020.990.99292.442.002.000.970.321.031.00-0.269 1.24加大1.091.0820.590.021.100.99112.632.002.000.960.351.311.30-0.278 1.36二二、消消能能防防冲冲计计算算(1 1)消消力力池池深深度度计计算算依据“规范”第56页(B.1.1-1)(B.1.1-4)公式计算。d=0hc-hs-Z式中:d-消力池深度(m);0-水跃淹没系数,可采用1.051.1;hc-跃后水深(m);hs-出池渠道水深(m);Z-出池落差(m)。(2 2)消消力力池池长长度度计计算算依据“
6、规范”第57页(B.1.2-1)(B.1.2-2)公式计算。Lsj=Ls+Lj式中:Lsj-消力池长度(m);Ls-消力池斜坡段水平投影长度(m);-水跃长度校正系数,可采用0.70.8;Lj-水跃长度(m)。编号名称闸前总水头闸孔净宽过过闸闸流流量量单宽流量动能系数 重力加速度 流速系数池首宽度池末宽度假定收缩水深计算收缩水深跃后水深下游水深出池落差淹没系数假定池深计算池深水跃长斜坡投影长 水跃修正系数消力池长H0(m)B(m)Q Q(m m3 3/s/s)q(m2/s)agb1(m)b2(m)hc(m)hc(m)hc(m)hs(m)Z(m)0d(m)d(m)Lj(m)Ls(m)Lsj(m)
7、49+548节制闸1.702.505.005.002.001.059.810.952.502.500.35950.35951.371.64-0.031.100.5000-0.1033 7.002.000.807.601.702.504.004.001.601.059.810.952.502.500.28170.28171.261.48-0.021.100.5000-0.0759 6.762.000.807.411.702.503.003.001.201.059.810.952.502.500.20730.20731.121.30-0.011.100.5000-0.0568 6.302.000.
8、807.041.702.502.002.000.801.059.810.952.502.500.13580.13580.941.08-0.011.100.5000-0.0408 5.542.000.806.431.702.501.001.000.401.059.810.952.502.500.06680.06680.680.770.001.100.5000-0.0157 4.262.000.805.41515+891节制闸1.632.504.004.001.601.059.810.952.502.500.28670.28671.251.60-0.031.100.5000-0.1998 6.62
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