关键词: 内涝防治, 径流控制, 洪峰流量, 低影响开发(LID)模式, SWMM模型, 海绵城市

Abstract: With China's urbanization process accelerating, the urban impervious surface area continually increases and problems of urban water logging are becoming serious. In order to reduce the urban water logging frequency and its impact, we adopted SWMM model to construct the regional rainfall runoff model of the area around Guangming Phoenix New City Park in Guangming District, Shenzhen City. In this paper, the runoff and peak discharge reduction under 4 individual LID schemes were compared with that under multiple LID schemes in combination. The results showed that:① the LID combination schemes had the best effect on reducing total runoff, followed by the bioretention cells, permeable paving, rain barrels and green roof.② The LID combination schemes had best effect on reducing peak discharge and delaying flood peak appearance time, followed by the bioretention cells, permeable paving, green roof and rain barrels.

Key words: waterlog control, runoff control, peak discharge, Low Impact Development(LID), SWMM model, sponge city;