Design and evaluation of control strategies in urban drainage systems in Kunming city
Design and evaluation of control strategies in urban drainage systems in Kunming city作者机构:School of Environment Tsinghua University Beijing 100084 China
出 版 物:《Frontiers of Environmental Science & Engineering》 (环境科学与工程前沿(英文))
年 卷 期:2017年第11卷第4期
页 面:105-112页
核心收录:
学科分类:081504[工学-水利水电工程] 08[工学] 0815[工学-水利工程]
主 题:Urban drainage system Real time control Static strategy Constant strategy Equal filling strategy
摘 要:Real time control (RTC) of urban drainage systems (UDSs) is an important measure to reduce combined sewer overflow (CSO) and urban flooding, helping achieve the aims of "Sponge City'. Application of RTC requires three main steps: strategy design, simulation-based evaluation and field test. But many of published RTC studies are system-specific, lacking discussions on how to design a strategy step by step. In addition, the existing studies are prone to use hydrologic model to evaluated strategics, but a more precise and dynamic insight into strategy performance is needed. To fill these knowledge gaps, based on a case UDS in Kunming city, a studio on RTC strategy design and Management Model (SWMM) - uncier four typical rainfall events characterized by different return periods (1-year or 0.5 year) and different spatial distributions (uniform or uneven). The equal filling strategy outperformss other two strategies and it can achieve 10% more CSO reduction and 5% more flooding reduction relative to the no-tank case.