Research on Stormwater Runoff Simulation and LID Transformation based on SWMM Model
With the acceleration of urbanization,the problem of urban stormwater runoff is becoming more and more serious,which not only has a negative impact on the urban ecological environment,but also may cause great pressures on urban drainage system.this study takes the Gallery Park of Chenggong Campus of Kunming University of Science and Technology as an example,adopts SWMM model to simulate stormwater runoff,and studies the transformation of low impact development(LID)technology.Firstly,the SWMM model is established through field investigation and data collection in the study area,and then the existing drainage system is simulated to analyze its existing problems.Then,LID technology is introduced to transform the drainage system and reduce the impact of stormwater runoff on the city by adding green facilities such as rainwater gardens,grass ditching and permeable paving.Finally,through the simulation analysis,it is verified that the improved drainage system has achieved good results in alleviating stormwater runoff and reducing flood peak discharge.This study provides theoretical support and practical reference for campus stormwater management and rainwater garden landscape design.
SWMM modelstormwater runofflow-impact developmentreconstruction study
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