水资源与水工程学报2017，Vol.28Issue(6)：44-49,55,7.DOI:10.11705/j.issn.1672-643X.2017.06.08
外河水位顶托下雨水管网排水能力变化的SWMM模拟
Simulation of changes of drainage capacity of rainwater pipe network caused by the jacking of outer rivers
摘要
Abstract
Taking the rainwater pipe network system of Heping District in Shenyang as an example, the Chicago rain type is selected as the design rain type, and the SWMM is used to simulate the drainage process of the storm water pipe network system under different heavy rainfall recurrence periods and out-river design flood levels. The results show that with the increase of rainfall recurrence period, the drain-age capacity of rainwater pipe network increases, but the degree of waterlogging increases. The effective drainage coefficient of rainwater pipe network system decreases with the increase of rainfall recurrence pe-riod and the degree of change slowed down at high recurrence period. There is a significant positive corre-lation between the total drainage capacity of the network system and the difference between the river water level and the average ground elevation of manholes and the correlation coefficient R is 0 . 992 , and it shows an approximate linear relationship. Pumps are essential in districts where submerged discharge oc-curs potentially. In this case, the pump enhances the drainage capacity of the pipe network system by 36. 3％, while for the free flow area, the pumping station may not contribute to the drainage capacity of the system basically.关键词
雨水管网/SWMM/排水能力/外河水位顶托/内涝Key words
rainwater pipe network/SWMM/drainage capacity/jacking of outer river/waterlogging分类
农业科技引用本文复制引用
张家立,丁华凯,高成,赵勇..外河水位顶托下雨水管网排水能力变化的SWMM模拟[J].水资源与水工程学报,2017,28(6):44-49,55,7.基金项目
国家自然科学基金项目(41301016) （41301016）
中央高校基本科研业务费项目(2014B16814) （2014B16814）
长江水利委员会长江科学院开放研究基金项目(CKWV2015206/KY) （CKWV2015206/KY）
