Study on Flood Control Planning Scheme of Main Urban Area of Qijiang District in Chongqing City

In order to solve the flood control problems faced by the main urban area of Qijiang District in hilly areas and ensure the safety of urban flood control, based on the in-depth study of the characteristics of flood disasters and one-dimensional hydrodynamic model of the main stream of Qijiang River, the current situation and main problems of flood control in this area are analysed, and the reasons for the insufficient capacity of flood control are found out. The flood control effects of Engineering measures, such as the optimization and reconstruction of shipping cascades, river regulation, river-crossing bridges construction, levee construction and flood diversion tunnels were studied, and the flood control planning scheme was put forward. It is suggested that comprehensive governance should be carried out based on the requirements of urban landscape, and the combination scheme of cascade optimization and reconstruction + river regulation + dike construction is recommended.