Numerical simulation of urban waterlogging based on TELEMAC-2D and SWMM model

被引:0
|
作者
Wang Z. [1 ,2 ]
Chen Y. [1 ]
Lai C. [1 ,2 ]
机构
[1] School of Civil Engineering and Transportation, South China University of Technology, Guangzhou
[2] Guangdong Engineering Technology Research Center of Safety and Greenization for Water Conservancy Project, Guangzhou
来源
Water Resources Protection | 2022年 / 38卷 / 01期
关键词
Changban; model coupling; numerical simulation; SWMM; TELEMAC-2D; urban waterlogging;
D O I
10.3880/j.issn.1004-6933.2022.01.015
中图分类号
学科分类号
摘要
Taking Changban district of Guangzhou City as an example, a new coupling model TSWM was constructed based on SWMM and TELEMAC-2D. the applicability and reliability of the model were evaluated through historical rainstorm event verification and model comparison, and then numerical simulations of rainstorms with different return periods were conducted. The results show that the TSWM model can accurately simulate the urban water logging in the study area, which is able to realize the refined simulation of urban water logging. Compared with the coupling models based on SWMM, LISFLOOD-FP and WCA2D, the TSWM model can obtain more refined simulation results. With the low standard of the drainage system, the study area is vulnerable to water logging under extreme rain storms. A series of measures, such as upgrading the standard of drainage pipe network system, constructing the joint dispatching scheme of pumps and gates, and arranging LID facilities, are suggested to be taken to reduce the influence of urban water logging. The TSWM model has high applicability and accuracy in the numerical simulation o water logging in complex urban areas. © 2022, Editorial Board of Water Resources Protection. All rights reserved.
引用
收藏
页码:117 / 124
页数:7
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