目录一．污水管网设计计算…………………………………………………11.1污水管网水力计算…………………………………………………1二、雨水管网设计计算…………………………………………………42.1划分设计管段………………………………………………………42.2计算各设计管段的汇水面积………………………………………52.3重要设计参数………………………………………………………52.4雨水干管水力计算…………………………………………………52.5雨水出水口…………………………………………………………7三、参考资料及文献……………………………………………………7一、污水管网设计计算1.1污水管网水力计算（1）将各街区编上号码，并按各街区的平面范畴计算它们的面积，列入下表中。街区面积表街区编号123456街区面积6.125.766.016.807.036.12街区编号789101112街区面积5.185.326.016.276.495.65街区编号131415161718街区面积6.417.308.958.618.917.75街区编号192021222324街区面积13.639.588.468.757.614.70街区编号252627282930街区面积4.116.042.552.455.174.50（2）污水流量的计算该县城人口密度为400人/104m2，生活污水量原则为（100＋2×11）=122（L/人·日）。计算居民平均日生活污水量为：由上式计算总变化系数为：计算居民生活污水设计流量为：工业排水设计流量已直接给出为：将各项污水设计流量直接求和，得该县城污水设计总流量：居民生活污水平均日流量按街坊面积比例分派，比流量为：污水集中流量：工厂啤酒厂肉类加工厂皮革厂印染厂流量（L/s）21.529.535.863.4管段设计流量采用列表进行计算，以下表：污水干管设计流量计算污水主干管水力计算表9管段编号管段设计管段管段管内充满度降落量I*L(m)长度流量直径坡度流速h/Dh(m)L（m)q(l/s)D(mm)I(‰)v(m/s)(﹪)1234567891-2137.006.053005.890.6020.000.060.812-3258.0011.343003.540.6031.000.090.913-4431.00186.687001.140.8060.000.420.494-5357.00246.587001.170.8665.000.460.425-6368.00251.047001.220.8770.000.490.456-7325.00303.478001.070.8865.000.520.35管段编号标高(m)埋设深度(m)地面覆土厚度（m)地面水面管内底坡度上端下端上端下端上端下端上端下端I(‰)上端下端管段编号居民生活污水日平均流量分派管段设计流量计算本段转输流量(L/S)累计流量(L/S)总变化系数沿线流量(L/S)集中流量设计流量(L/S)街坊编号街坊面积(hm2)比流量[(L/S)/hm2]流量(L/S)本段(L/S)转输(L/S)1234567891011121—2244.70.562.63/2.632.306.05//6.052—3254.110.562.302.634.932.3011.34//11.348—9////3.233.232.307.4329.5/36.939—10////6.216.212.2113.7221.529.564.7210—11147.300.564.096.2110.302.0921.5335.851108.3311—12////10.3010.302.0921.53/86.8108.3312—3////10.3010.302.0921.5363.486.8171.733—4266.040.563.3815.2318.611.9636.48/150.2186.6813—14////7.177.172.1715.56//15.5614—15////14.0514.052.0228.38//28.3815—16////23.8823.881.9045.37//45.3716—4////33.9833.981.8362.18//62.184—527,285.000.562.8052.5955.391.7496.38/150.2246.585—6295.170.562.9055.3958.291.73100.84/150.2251.0417—18////7.367.362.1715.97//15.9718—19////14.1614.162.0228.60//28.6019—20////23.4923.491.9144.87//44.8720—6////32.6532.651.8460.08//60.086—7304.500.562.5290.9493.461.64153.27/150.2303.47110111213141516171819201-2748.28748.32747.14746.33747.08746.271.202.05-0.290.91.752-3748.32748.35746.33745.42746.24745.332.083.02-0.121.782.723-4748.35748.26745.42744.93745.00744.513.353.750.212.653.054-5748.26748.12744.93744.51744.47744.063.794.060.393.093.365-6748.12747.55744.51744.06744.02743.574.103.981.553.403.286-7747.55747.20744.06743.71743.54743.194.014.011.083.213.21污水干管水力计算表管段编号管段设计管段管段管内充满度降落量I*L(m)长度流量直径坡度流速h/Dh(m)L（m)q(l/s)D(mm)I(‰)v(m/s)(﹪)12345678913-1423315.563003.000.6239.000.120.7014...
