Stormwater detention basin is an important green infrastructure for runoff pollution and peak rate control.Through sedimentation,it can effectively remove SS by adding the water quality control volume.The design standard of the water quality control volume is the total runoff volume capture rate,and the key design parameters are the design drain time and the design surface load;By adding micro-pool or permanent pool,it improves the retention time of runoff water and sediment trap efficiency.This paper combs the efficiency calculation basic formulas and the meth-ods of mathematical statistics and SWMM model with case studies,which can provide reference for improving the design method of stormwater detention basin.
维普
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