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Simulation and risk assessment of urban flooding under realistic 3D data
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Lizhou WU1, Hua LI**, 1, Peng ZHANG1, Hongyan QIAN2, Fei KANG3, Guangli TAN4
China Safety Science Journal | 2025, 35(5) : 237 - 245
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China Safety Science Journal | 2025, 35(5): 237-245
• Technology and engineering of disaster prevention and mitigation •
Simulation and risk assessment of urban flooding under realistic 3D data
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Lizhou WU1, Hua LI**, 1, Peng ZHANG1, Hongyan QIAN2, Fei KANG3, Guangli TAN4
Affiliations
  • 1School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an Shaanxi 710055, China
  • 2Zhenba County Qingshui Town People's Government, Hanzhong Shaanxi 723600, China
  • 3Zhenba County Emergency Management Bureau, Hanzhong Shaanxi 723600, China
  • 4Zhenba County meteorological Bureau, Hanzhong Shaanxi 723600, China
Published: 2025-05-28 doi: 10.16265/j.cnki.issn1003-3033.2025.05.0622
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In order to enhance the capacity of urban flood prevention and disaster reduction, taking Zhenba County as an example, this paper explores the coupled disaster formation process and risk assessment methods of flood disasters. By analyzing the rainfall data and flood disaster statistics in recent years, the frequent occurrence and severity of flood disasters in this area as well as the huge losses they have caused to the economy and society were revealed. High-precision terrain data was obtained through unmanned aerial vehicle technology and combined with the SWAT for flood simulation, providing accurate disaster data support. A multi-factor risk assessment matrix was constructed, and the comprehensive flood risk index was obtained through normalization processing. The risk assessment results show that 14 areas with grade IV risks are identified, and the simulation results of the model are highly consistent with the actual situation. The research results indicate that the constructed coupled disaster formation simulation and risk assessment method can accurately identify high-risk areas. Effective countermeasures are proposed for high-risk areas, including improving flood control capacity, strengthening monitoring and early warning, conducting disaster prevention and education, and strengthening land planning and management.

3D reality modeling  /  urban flooding  /  risk assessment  /  unmanned aerial vehicle  /  soil and water assessment tool(SWAT)
Lizhou WU, Hua LI, Peng ZHANG, Hongyan QIAN, Fei KANG, Guangli TAN. Simulation and risk assessment of urban flooding under realistic 3D data[J]. China Safety Science Journal, 2025 , 35 (5) : 237 -245 . DOI: 10.16265/j.cnki.issn1003-3033.2025.05.0622
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Article Info
doi: 10.16265/j.cnki.issn1003-3033.2025.05.0622
  • Receive Date：2025-01-11
  • Online Date：2026-07-08
  • Published：2025-05-28
Article Data
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History
  • Received：2025-01-11
  • Revised：2025-03-17
Funding
Affiliations
    1School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an Shaanxi 710055, China
    2Zhenba County Qingshui Town People's Government, Hanzhong Shaanxi 723600, China
    3Zhenba County Emergency Management Bureau, Hanzhong Shaanxi 723600, China
    4Zhenba County meteorological Bureau, Hanzhong Shaanxi 723600, China
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表12种不同金属材料的力学参数
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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