Taking Changban district of Guangzhou City as an example, a new coupling model TSWM was constructed based on SWMM and TELEMAC-2D. the applicability and reliability of the model were evaluated through historical rainstorm event verification and model comparison, and then numerical simulations of rainstorms with different return periods were conducted. The results show that the TSWM model can accurately simulate the urban waterlogging in the study area, which is able to realize the refined simulation of urban waterlogging. Compared with the coupling models based on SWMM, LISFLOOD-FP and WCA2D, the TSWM model can obtain more refined simulation results. With the low standard of the drainage system, the study area is vulnerable to waterlogging under extreme rainstorms. A series of measures, such as upgrading the standard of drainage pipe network system, constructing the joint dispatching scheme of pumps and gates, and arranging LID facilities, are suggested to be taken to reduce the influence of urban waterlogging. The TSWM model has high applicability and accuracy in the numerical simulation of waterlogging in complex urban areas.
王兆礼,陈昱宏,赖成光.基于TELEMAC-2D和SWMM模型的城市内涝数值模拟[J].水资源保护,2022,38(1):117-124.(WANG Zhaoli, CHEN Yuhong, LAI Chengguang. Numerical simulation of urban waterlogging based on TELEMAC-2D and SWMM model[J]. Water Resources Protection,2022,38(1):117-124.(in Chinese))复制