Urban flood disaster risk assessment method fused with elasticity
A flood disaster and risk assessment technology, applied in the direction of instruments, data processing applications, geographic information databases, etc., can solve the problem of neglecting the urban system's ability to resist, adapt and recover from flood disasters, and cannot well reflect the impact of flood disaster risks, etc. problem, to achieve the effect of reducing the amount of calculation, reducing the difficulty, and accurately risking the size
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[0041] A risk assessment method for urban flood disasters that incorporates resilience, such as figure 1 shown, including the following steps:
[0042] S1. Divide grid units based on the actual situation of the study area;
[0043] By constructing a one-dimensional coupling model based on Infoworks ICM software in Xiangzhou District of Zhuhai City and Minzhi District of Shenzhen City, the 2D interval and two-dimensional calculation area in the one-dimensional coupling model are determined, and the unstructured network of the research area is obtained by using the 2D interval division cell.
[0044] S2. Obtain the submerged water depth of each grid unit corresponding to the rainfall time series and the submerged water depth data duration of the rainfall;
[0045] In the example of Xiangzhou City, Zhuhai City, the rainstorm return period is designed as a 2-year, 10-year, and 50-year occurrence respectively, and the rainfall sequence that lasts 2 hours and the time interval is...
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