Author(s): Yuan Yuan, Min Wang, Yi Hu
Linked Author(s): Yuan Yuan
Keywords: Tidal river network, SWMM Model, hydrodynamic model, flood control and drainage.
Abstract: Recently, as the economy develops rapidly and the urbanization process increases, the loss caused by waterlogging disaster has been more and more prominent and the urban flood has become a major issue that concerns the world. In this paper, SWMM hydrological model and MIKE11 hydrodynamic model are used in combination to simulate the rainfall runoff process as well as flood control and drainage process. The results show that, with the pump station, the water level of inner-river decreases compared with the case of no pump station. Moreover, the greater the pumping capacity is, the larger the drawdown value of the water level. Without the pump station, parts of the river reaches have high water levels in case one compared with the case two, for the reason that the case one has a higher outer tide level. The influence of outer tide level is decreased obviously, and the water level is mainly influenced by rainfall and pumping capacity. The results are reasonable, showing that the coupling model will benefit the flood control and drainage planning in the plain tidal river network
Year: 2017