一、流量计算
径流法 采用交通科学研究院的径流简化公式:
Qp=Φ(h-Z)3/2F4/5βγδ
Qp为百年一遇
式中:洪峰
流量(m3/s)F为流域面积(Km2
):h为径流厚度(mm):Z为被植物或洼地滞留的径流厚度(mm):β为洪水传播影响洪峰流量的折减系数:γ为流域内降雨不均匀影响洪峰流量的折减系数:
二、全线小桥涵流量计算成 1、
δ为湖泊或小水库调节作用影响洪峰流量的折减系数:Φ为地貌系数(根据地形条件、河底平均比降i和F查表)
K线涵洞
流量计算序号桩号F流域hZ面积(mm)(mm)βγδΦ流量Q(m3/s1K0+6550.024310110.990.10.822K0+6873.734310110.990.153.803K0+7855.334310110.990.171.584K0+9580.064310110.990.11.985K1+3820.874310110.990.116.796K2+4900.074310110.990.12.247K2+6870.094310110.990.12.738K3+2721.184310110.990.121.429K3+7080.144310110.990.13.8910K4+2920.064310110.990.11.9811K5+9800.034310110.990.11.1412K6+1660.074310110.990.12.2413K6+3020.064310110.990.11.9814K7+4610.024310110.990.10.8215K7+9690.884310110.990.116.9416K8+0200.14310110.990.12.9717K8+1860.034310110.990.11.1418K8+5900.054310110.990.11.7119202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970K8+865K9+168K9+480K10+138K10+373K10+558K11+363K11+570K11+700K11+847K12+460K12+580K12+784K13+348K13+637K13+924K14+224K14+374K14+688K14+963K16+017K16+176K16+540K16+684K17+076K17+559K17+880K18+115K18+300K18+442K18+918K19+120K19+530K19+673K22+881K23+346K24+488K24+745K24+880K25+100K25+210K25+376K26+230K27+234K27+392K27+515K27+813K29+433K33+493K36+760K36+905K37+2820.110.350.080.030.010.20.020.170.060.160.060.030.030.090.050.070.060.080.070.090.020.070.020.060.040.110.290.090.110.130.560.190.251.660.030.040.170.330.130.340.190.170.360.040.051.780.431.970.720.610.010.844343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434343434310101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111110.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.990.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.13.218.102.491.140.475.180.824.551.984.331.981.141.142.731.712.241.982.492.242.730.822.240.821.981.433.216.972.733.213.6711.804.976.1928.151.141.434.557.733.677.924.974.558.291.431.7129.779.5532.2814.4312.640.4716.32
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