Simulation of the dam-break flood and analysis of the dam failure risk in Fengcheng City in“2023.5”
LI Delong1,2,3, XU Xiaohua1,2, HUANG Ping1,2, ZHANG Xiuping1,2, LI Yalin1,2, DING Zhixiong4
1. Jiangxi Provincial Institute of Water Science, Nanchang 330000; 2. Jiangxi Provincial Technology Innovation Center for Ecological Water Engineering in Poyang Lake Basin, Nanchang 330000; 3. State Key Laboratory of Hydrological Water Resources and Hydraulic Engineering Science, Hohai University, Nanjing 210098; 4. China Institute of Water Resources and Hydropower Research, Beijing 100038
Abstract：In May 2023, due to the influence of heavy rainfall, Qingfeng dike and Niukeng Reservoir in Fengcheng City, Jiangxi Province, were subjected to varying degrees of peril, resulting in consequential flood damage. This research paper focuses on the analysis of this critical situation, wherein data related to the hazardous circumstances were systematically gathered. Subsequently, an inverse simulation of dike breaching inundation range was conducted utilizing hydrodynamic and remote sensing monitoring methods. Concurrently, the dam breaching risk of Niukeng Reservoir was computed and evaluated using the hydrodynamic empirical formula method. Furthermore, an on-site field inspection was executed, corroborating that the simulated dike breaching and dam breaching inundation ranges closely aligned with the actual occurrences. The findings of this study indicate a strong congruence between the simulated dam failure and the actual inundation range of the dam breach. These research outcomes furnish valuable technical references for post-disaster rapid assessments and flood emergency response decision-making in the affected region.
李德龙, 许小华, 黄萍, 张秀平, 李亚琳, 丁志雄. 江西丰城市“2023.5”溃堤洪水险情反演与溃坝险情模拟分析[J]. 中国防汛抗旱, 2023, 33(10): 21-26.
LI Delong, XU Xiaohua, HUANG Ping, ZHANG Xiuping, LI Yalin, DING Zhixiong. Simulation of the dam-break flood and analysis of the dam failure risk in Fengcheng City in“2023.5”. journal1, 2023, 33(10): 21-26.
2023, Vol. 33 
