Abstract:Under the condition of meeting the planning indexes such as runoff control rate, many kinds of LID technical schemes can be adopted in sponge city reconstruction of residential districts. Designers often at random on scheme-choosing. In this paper, it is proposed to observe the residential district before design, calibrate the parameters of SWMM model to be adopted, and then combine the SWMM simulation results of different rainstorm recurrence periods. Considering factors such as hydrological characteristics improvement, project cost, environmental benefits, etc., the comprehensive benefits of LID combination scheme are evaluated by fuzzy comprehensive evaluation method, and finally find out the best LID combination scheme. This method can provide reference for the application of low-impact development.
