强降雨造成的城市内涝是普遍存在的难题,传统排水措施的速度太慢,许多海绵城市的蓄滞容量小、效益较低。文章在分析内外滞洪因素的基础上,理顺水务、市政、建筑物综合治理的思路,讨论了城外河湖疏浚、城内蓄雨滞流的任务界定、措施以及成效,提出了相关建议,明确城外河湖、城内管网的各自目标,并侧重探析了屋面蓄滞空间拓展和暴雨流量调节的新方法。枯季内外兼顾治理,汛期蓄滞科学调度,方能获得较好的城市排涝效果。 Urban waterlogging caused by heavy rainfall is a ubiquitous problem. The traditional drainage measures are too slow. Many sponge cities have small storage capacity and low efficiency. Based on the analysis of internal and external stagnation factors, the article straighten out the ideas of comprehensive management of water affairs, municipal services and buildings, discussed the definition, measures and achievements of the dredging of rivers and lakes outside the city and the accumulation of stagnant water in the city, put forward relevant suggestions, Outside the city and lake, the city’s pipe network of the respective goals, and focused on exploring the roof storage space expansion and storm flow regulation of new methods. Dry season both inside and outside governance, flood season storage science scheduling, in order to obtain better urban drainage effect.