Flood Control Capacity of Shenzhen River Basin during "9·7" Torrential Rainfall
To evaluate whether the current flood control capacity of the Shenzhen River Basin meets design standards, a one-dimensional hydrodynamic mathematical model was employed to simulate the flood process during "9·7" torrential rainfall. Additionally, simulations were conducted to analyze the...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Pearl River
2024-11-01
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| Series: | Renmin Zhujiang |
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| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2024.11.004 |
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| author | ZHOU Hui LIU Jing GAO Shiyou WU Yao LU Chen |
| author_facet | ZHOU Hui LIU Jing GAO Shiyou WU Yao LU Chen |
| author_sort | ZHOU Hui |
| collection | DOAJ |
| description | To evaluate whether the current flood control capacity of the Shenzhen River Basin meets design standards, a one-dimensional hydrodynamic mathematical model was employed to simulate the flood process during "9·7" torrential rainfall. Additionally, simulations were conducted to analyze the flood control capacity of the basin under different topographies and roughness conditions. The simulation results indicate that the dredging projects carried out between 2016 and 2020 have enhanced the flood control capacity of the main stream of the Shenzhen River from less than a 20-year return period in some sections to a 50-year return period overall. However, rapid sedimentation and vegetation growth in the riverbed after dredging increase roughness, preventing the upstream section of the Liantang River tributary from meeting the 50-year flood control standard. Currently, the Shenzhen River faces unfavorable underlying conditions, including a fan-shaped catchment topography combined with urban development, significant sedimentation following dredging, and continuous expansion of mangroves at the river mouth, as well as challenges such as frequent extreme weather events and significant urban waterlogging risks. Therefore, to enhance flood control capacity, it is necessary to develop a comprehensive strategy from a basin-wide perspective. A combination of measures including storage, retention, diversion, discharge, and blocking can be used to further reduce peak flood discharges and increase river flood conveyance capacity. |
| format | Article |
| id | doaj-art-c1dfa3d973e1451cbe07bbb1dd5fbc9a |
| institution | Kabale University |
| issn | 1001-9235 |
| language | zho |
| publishDate | 2024-11-01 |
| publisher | Editorial Office of Pearl River |
| record_format | Article |
| series | Renmin Zhujiang |
| spelling | doaj-art-c1dfa3d973e1451cbe07bbb1dd5fbc9a2025-01-15T03:08:26ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352024-11-0145344267370517Flood Control Capacity of Shenzhen River Basin during "9·7" Torrential RainfallZHOU HuiLIU JingGAO ShiyouWU YaoLU ChenTo evaluate whether the current flood control capacity of the Shenzhen River Basin meets design standards, a one-dimensional hydrodynamic mathematical model was employed to simulate the flood process during "9·7" torrential rainfall. Additionally, simulations were conducted to analyze the flood control capacity of the basin under different topographies and roughness conditions. The simulation results indicate that the dredging projects carried out between 2016 and 2020 have enhanced the flood control capacity of the main stream of the Shenzhen River from less than a 20-year return period in some sections to a 50-year return period overall. However, rapid sedimentation and vegetation growth in the riverbed after dredging increase roughness, preventing the upstream section of the Liantang River tributary from meeting the 50-year flood control standard. Currently, the Shenzhen River faces unfavorable underlying conditions, including a fan-shaped catchment topography combined with urban development, significant sedimentation following dredging, and continuous expansion of mangroves at the river mouth, as well as challenges such as frequent extreme weather events and significant urban waterlogging risks. Therefore, to enhance flood control capacity, it is necessary to develop a comprehensive strategy from a basin-wide perspective. A combination of measures including storage, retention, diversion, discharge, and blocking can be used to further reduce peak flood discharges and increase river flood conveyance capacity.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2024.11.004torrential rainfallstorm floodflood control capacityShenzhen River Basin |
| spellingShingle | ZHOU Hui LIU Jing GAO Shiyou WU Yao LU Chen Flood Control Capacity of Shenzhen River Basin during "9·7" Torrential Rainfall Renmin Zhujiang torrential rainfall storm flood flood control capacity Shenzhen River Basin |
| title | Flood Control Capacity of Shenzhen River Basin during "9·7" Torrential Rainfall |
| title_full | Flood Control Capacity of Shenzhen River Basin during "9·7" Torrential Rainfall |
| title_fullStr | Flood Control Capacity of Shenzhen River Basin during "9·7" Torrential Rainfall |
| title_full_unstemmed | Flood Control Capacity of Shenzhen River Basin during "9·7" Torrential Rainfall |
| title_short | Flood Control Capacity of Shenzhen River Basin during "9·7" Torrential Rainfall |
| title_sort | flood control capacity of shenzhen river basin during 9·7 torrential rainfall |
| topic | torrential rainfall storm flood flood control capacity Shenzhen River Basin |
| url | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2024.11.004 |
| work_keys_str_mv | AT zhouhui floodcontrolcapacityofshenzhenriverbasinduring97torrentialrainfall AT liujing floodcontrolcapacityofshenzhenriverbasinduring97torrentialrainfall AT gaoshiyou floodcontrolcapacityofshenzhenriverbasinduring97torrentialrainfall AT wuyao floodcontrolcapacityofshenzhenriverbasinduring97torrentialrainfall AT luchen floodcontrolcapacityofshenzhenriverbasinduring97torrentialrainfall |