Research on Flood Control and Drainage Simulation of Artificial Water Networks Based on SWMM Coupled with HEC-RAS

Accurate simulation and analysis of hydrology and hydraulic processes in newly constructed urban areas are crucial for the planning and construction of artificial water networks and the prevention of flooding in newly constructed urban areas. A distributed hydrological model of SWMM was coupled with...

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Main Authors: XIA Minghui, YIN Shiyang
Format: Article
Language:zho
Published: Editorial Office of Pearl River 2024-06-01
Series:Renmin Zhujiang
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Online Access:http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2024.06.004
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author XIA Minghui
YIN Shiyang
author_facet XIA Minghui
YIN Shiyang
author_sort XIA Minghui
collection DOAJ
description Accurate simulation and analysis of hydrology and hydraulic processes in newly constructed urban areas are crucial for the planning and construction of artificial water networks and the prevention of flooding in newly constructed urban areas. A distributed hydrological model of SWMM was coupled with a two-dimensional hydrodynamic model (SWE-ELW) of HEC-RAS to simulate and analyze flood control and drainage in the southern water network of Fuyang City in Anhui Province. The results show that the number of calculation parameters in the SWMM model is more, and the drainage modulus decreases with increasing catchment area, which is close to the drainage modulus in planned pump stations, making the calculation results more reasonable. Under the condition of a 30-year return period of the southern water network drainage standard, the highest water level in the southern water network reaches 27.89 m during flood season, meeting the requirements of the drainage scheme. The flow through each gate is proportional to the river channel's bottom width, and the fluctuation degree of each process line of each gate is inversely proportional to the river channel's bottom width. The network first stores water before discharging it, reducing peak flow by 57.21 m<sup>3</sup>/s, delaying peak flow by 2.83 hours, storing flood by 1.69 million m<sup>3</sup>, and reaching a peak flow reduction rate of 42.45%, resulting in significant flood control and drainage benefits. This method has certain simulation effects and accuracy, which can provide reference and guidance for related studies on flood control and drainage in artificial water network construction.
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spelling doaj-art-ab37d699d2a648808d742f7cd9e715662025-01-15T03:01:03ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352024-06-0145303862792851Research on Flood Control and Drainage Simulation of Artificial Water Networks Based on SWMM Coupled with HEC-RASXIA MinghuiYIN ShiyangAccurate simulation and analysis of hydrology and hydraulic processes in newly constructed urban areas are crucial for the planning and construction of artificial water networks and the prevention of flooding in newly constructed urban areas. A distributed hydrological model of SWMM was coupled with a two-dimensional hydrodynamic model (SWE-ELW) of HEC-RAS to simulate and analyze flood control and drainage in the southern water network of Fuyang City in Anhui Province. The results show that the number of calculation parameters in the SWMM model is more, and the drainage modulus decreases with increasing catchment area, which is close to the drainage modulus in planned pump stations, making the calculation results more reasonable. Under the condition of a 30-year return period of the southern water network drainage standard, the highest water level in the southern water network reaches 27.89 m during flood season, meeting the requirements of the drainage scheme. The flow through each gate is proportional to the river channel's bottom width, and the fluctuation degree of each process line of each gate is inversely proportional to the river channel's bottom width. The network first stores water before discharging it, reducing peak flow by 57.21 m<sup>3</sup>/s, delaying peak flow by 2.83 hours, storing flood by 1.69 million m<sup>3</sup>, and reaching a peak flow reduction rate of 42.45%, resulting in significant flood control and drainage benefits. This method has certain simulation effects and accuracy, which can provide reference and guidance for related studies on flood control and drainage in artificial water network construction.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2024.06.004water networkflood control and drainagegateSWMMHEC-RAStwo-dimensional model
spellingShingle XIA Minghui
YIN Shiyang
Research on Flood Control and Drainage Simulation of Artificial Water Networks Based on SWMM Coupled with HEC-RAS
Renmin Zhujiang
water network
flood control and drainage
gate
SWMM
HEC-RAS
two-dimensional model
title Research on Flood Control and Drainage Simulation of Artificial Water Networks Based on SWMM Coupled with HEC-RAS
title_full Research on Flood Control and Drainage Simulation of Artificial Water Networks Based on SWMM Coupled with HEC-RAS
title_fullStr Research on Flood Control and Drainage Simulation of Artificial Water Networks Based on SWMM Coupled with HEC-RAS
title_full_unstemmed Research on Flood Control and Drainage Simulation of Artificial Water Networks Based on SWMM Coupled with HEC-RAS
title_short Research on Flood Control and Drainage Simulation of Artificial Water Networks Based on SWMM Coupled with HEC-RAS
title_sort research on flood control and drainage simulation of artificial water networks based on swmm coupled with hec ras
topic water network
flood control and drainage
gate
SWMM
HEC-RAS
two-dimensional model
url http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2024.06.004
work_keys_str_mv AT xiaminghui researchonfloodcontrolanddrainagesimulationofartificialwaternetworksbasedonswmmcoupledwithhecras
AT yinshiyang researchonfloodcontrolanddrainagesimulationofartificialwaternetworksbasedonswmmcoupledwithhecras