According to the characteristics of drainage in plain river network area,this paper takes the south extension project of a river in Lishui district of Nanjing as an example.By coupling SCS and MIKE11 HD model,the water level change process of typical section under land use change before and after the implementation of the project in the study area is simulated,and the influence of different land use modes on regional drainage is evaluated.The results show that with the change of land use,the rise of river water level is accelerated;under the land use mode after the implementation of the project,the time for the river water level to reach the gate start-up water level is significantly shortened,the flood discharge of the gate pump is less than the rainwater increment,and the risk of waterlogging is greater;after the expansion of the pumping station,the risk of waterlogging is effectively reduced.The research results can provide technical support for the analysis of regional drainage under rainstorm and the deployment of flood warning.
关键词
MIKE11/SCS/泵闸/土地利用/防洪排涝
Key words
MIKE11/SCS/pump and lock/land use/flood control and drainage
维普
万方数据