基于北方平原城市特点的雨水系统优化设计

Optimal Design of Rainwater System Based on Characteristics of Northern Plain Cities

针对北方平原城市地势平坦、河道水位顶托、夏季降雨集中的特点,对集流时间、汇水面积、径流系数、暴雨重现期、淹没流速、雨水口等几个市政雨水管网设计中的要素进行分析,提出了最佳取值的选取方法,以达到优化设计的目的。

Based the characteristics of smooth terrain, backwater effect of fiver water level and summer rainfall concentration in the northern plain cities, The key elements in design of municipal rainwater pipe network, such as collecting time, catchment area, runoff coefficient, rainfall recurrence interval, flooding velocity, rainwater inlets and so on are analyzed. The selection methods for the optimal values are put forward to achieve the goal of optimal design.