论文部分内容阅读
为对比分析小面积排水管网公式法与数学模型模拟效果之间的差异,分别采用传统推理公式法和SWMM模型结合芝加哥降雨过程线对一小汇水面积片区的排水管网系统进行设计和模拟计算,对比分析了两者管道流量、节点水深的差异及峰值排水过程。结果表明,两者管道流量峰值相近,模拟的最大节点水深略高于公式法设计值,可见对小汇水面积而言,按公式法设计的管网系统能满足相应重现期的排水过程要求。
In order to compare and analyze the difference between the formula method of small area drainage pipe network and the simulation result of mathematical model, the design and simulation of the drainage pipe network system of a small catchment area were carried out by using the traditional reasoning formula method and SWMM model respectively. Comparisons were made between the two pipe flow rates, the differences of water depths and the peak drainage process. The results show that the peak flow of the two pipelines is similar, and the maximum node depth of the simulation is slightly higher than that of the formula method. It can be seen that for the small catchment area, the pipe network system designed according to the formula method can meet the drainage process requirements of the corresponding recurring period .