Simulating the storm water runoff and drainage of the south urban district in the Taiyuan Basin with a 1D _ 2D model

4th International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Long, Y.Q.^1^2 ; Cui, T.T.^1^3

Nanjing Hydraulic Research Institute, Nanjing

210029, China^1

Nanjing RandD Tech Group Co. Ltd., Nanjing

210029, China^2

Hohai University, Nanjing

210098, China^3

关键词: Building blockes;    Hydrological modeling;    Observed data;    Storm water runoff;    Surface flow;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/237/2/022050/pdf
DOI  :  10.1088/1755-1315/237/2/022050

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The flood of the urban in a basin might be more serious than the urban district in the plain. In this paper, we take the south urban district in the Taiyuan Basin as a case, and set up a 1D-2D model to analyse the runoff and drainage during different designed storm scenarios. The hydrological model calibrated by the designed storm and flood is taken as an inflow boundary of the plain, instead of observed data series. The 1D-2D model is used to model the drainage, surface flow, and flooding. The model shows that the flooding might occur in the urban district during the three designed 24-hour rainfalls, 20 years, 50 years and 100 years, and the roads between building blocks and the low-lying farmland might experience heavy flooding.