Risk analysis of mountainous gully based on MIKE model——Taking Longquan Gully in Huairou District of Beijing as an example
JIANG Xuejiao1,2, ZHANG Kun1, HE Jijun2, HU Xiaojing1, LI Bingnan3, LU Xueqi3
1. Beijing Water Science and Technology Institute, Beijing 100048; 2. College of Resource Environment and Tourism, Capital Normal University, Beijing 100048; 3. College of Hydrology and Water Resources, Hohai University, Nanjing 210098
Abstract：Flash flood disasters have the characteristics of wide impact and serious harm, and have become a prominent problem in disaster prevention and mitigation. Taking Longquan Gully in Huairou District, Beijing as an example, based on field investigation and topographic mapping, the control section and critical water level were determined. By constructing the MIKE11-NAM coupled model to obtain the water level-flow relationship and rainfall-flow relationship, the rainfall warning indicators for 1 h, 3 h, 6 h, 12 h and 24 h under different soil water content conditions were proposed as immediate transfer indicators.MIKE FLOOD was used to realize the MIKE11-21 coupling model to simulate and analyze the inundation risk of the ditch under different soil water content conditions, rainfall calendar times, and rainfall levels, and the results showed that the flood control capacity of Longquan Gully was insufficient. It provides a reference for determining the early warning indicators of other flash flood basins in the city, as well as the compiling of flash flood disaster plans, forecasts and early warnings and risk avoidance transfer.
姜雪娇, 张焜, 和继军, 胡晓静, 李秉南, 卢雪琦. 基于MIKE模型的山洪沟风险分析——以北京怀柔区龙泉沟为例[J]. 中国防汛抗旱, 2024, 34(2): 68-73.
JIANG Xuejiao, ZHANG Kun, HE Jijun, HU Xiaojing, LI Bingnan, LU Xueqi. Risk analysis of mountainous gully based on MIKE model——Taking Longquan Gully in Huairou District of Beijing as an example. journal1, 2024, 34(2): 68-73.
2024, Vol. 34 
