降雨强度、
设计
领导形象设计圆作业设计ao工艺污水处理厂设计附属工程施工组织设计清扫机器人结构设计
雨水流量计算表降雨参数q降雨强度P重现期(a)t降雨历时(min)j参数当地数值[L/s·ha(10000m2)]A2424.1705051b11.00A(1ClgP)1724.8222282C0.5330qj(tb)nn0.6680q计设降雨强度jq设计雨水流量[L/s·724.8222282y(L/s)ha(10000m2)]qFqjwψ径流系数0.9y1000014.35148012F汇水面积(m2)220w表4.9.22重力流屋面雨水排水立管的泄流量铸铁管塑料管钢管公称直径最大泄流量公称直径×壁厚最大泄流量公称直径×壁厚(mm)(L/s)(mm)(L/s)(mm)755.4675×2.35.71108×490×3.29.2210011.77133×4110×3.215.98125×3.222.92159×4.512521.34125×3.722.41168×6160×4.044.4315034.69219×6160×4.743.34200×4.980.7820074.72245×6200×5.978.53250×6.2146.21250135.47273×7250×7.3142.63315×7.7271.34300220.29325×7300220.29325×7315×9.2264.15天沟雨水流流量计算表W天沟水影响因素数值R水力半径V流速流断面积n粗糙系数0.0110.11.3849230720.09B天沟宽度0.3H天沟深度0.3I天沟坡度0.00514000218.75110×3.2立管数160×4.7立管数0.898090120.33113705947.6最大泄流量(L/s)0.133333311.7721.3434.6938.5281.9112.28148.87242.49242.49Q(m3\s)Q(L\s)0.1246431124.6430765