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城市排水系统水力分析与改造策略——以秀山县为例 预览

Hydraulic Analysis and Reconstruction Strategy of Urban Drainage System in Xiushan County
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摘要 以秀山县城区一独立排水系统为例,运用暴雨管理模型(SWMM)模拟分析不同设计暴雨重现期下检查井溢流与管道输水超载情况,系统地评估研究区域的排水能力。针对现状排水管网输水能力的不足,提出了“透水铺装+植草沟”和“透水铺装+植草沟+蓄水池”两种低影响开发(LID)改造方案,并进行对比分析。结果表明:在暴雨条件下,两种LID改造方案较传统排水系统能更显著地削减雨水径流量,可有效控制溢流节点数与管道超载负荷;随着重现期的增加,“透水铺装+植草沟+蓄水池”改造方案对雨水径流的控制效果更佳。 An independent drainage area in Xiushan County, Chongqing, is selected as a studying area, in which, storm water man- agement model(SWMM) is used to simulate and analyze manhole overflow. Pipeline overloading of drainage system under different re- turn periods, and drainage capability of studying area are evaluated. Two schemes, such as "permeable pavement + bioswales" and "permeable pavement + bioswales + reservoirs" , based on low impact development (LID) are put forward in order to solve the insufficient drainage capacity, and then hydraulic characteristics under adding different LID scheme are analyzed. Results show that both LID scenarios are more significant in stormwater runoff reduction and effectively to control number of overflow nodes and overloading pipelines, compared with traditional drainage system. As a result, the risk of urban waterlogging may be reduced, and with the increase of recurrence period, the effect of runoff control may be better by the scheme of "permeable pavement + bioswales + reservoirs" than others.
作者 甘春娟 段玲红 陈垚 任萍萍 熊毅 Gan Chunjuan1 , Duan Linghong2 , Chen Yao2,3 , Ren Pingping2, Xiong Yi4 ( 1. Chongqing Municipal Research Institute of Design, Chongqing 400012, China ; 2. School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, China; 3. Engineering Laboratory of Environmental Hydraulic Engineering of Chongqing Municipal Development and Reform Commission, Chongqing Jiaotong University , Chongqing 400074, China; 4. Zhongbo Engineering Consuh Co., Ltd., Chongqing 401121, China)
出处 《净水技术》 CAS 2018年第10期111-117,共7页 Water Purifcation Technology
基金 重庆市研究生科研创新项目(CYS17200) 重庆交通大学研究生科研创新项目(20160110) 重庆市基础科学与前沿技术研究项目(cstc2017jcyjAx0292)
关键词 暴雨管理模型(SWMM) 排水能力 溢流节点 超负荷管道 低影响开发(LID) 改造 storm water managenlent model(SWMM) drainage capability overflow node overloading pipeline low impact development (LID) reconstruction
作者简介 甘春娟(1982-),女,硕士,高级工程师,主要从事市政给排水与海绵城市设计,E-mail:jeff-gan@163.com。;[通信作者]陈垚(1983-),E-mail:chenyao@cqjtu.edu.cn。
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