以济南市某坡地小区为例，将小区“马路行洪”主道路概化为不规则明渠，基于SWMM（stom water manage ment model）模型研究海绵城市改造方案对不同重现期设计降雨水文过程影响。结果表明：SWMM模型可较好地对小区“马路行洪”过程进行模拟，且选用的海绵城市改造方案（低影响开发措施改造及排水系统改造）可有效控制小区内的雨洪径流过程；对小区出流口Out01和Out02的5年以内不同重现期（1、3、5年）设计降雨径流总量和洪峰流量削减率分别超过了20%和10%，Out01的峰值水位削减率超过了15%，显著降低了研究区“马路行洪”灾害的影响。研究结果可为坡地小区“马路行洪”模拟及海绵城市建设与管理提供一定的理论支撑和技术参考。

A hillside residential area in Jinan city is selected to study the main road of "road flood discharge"which is generalized as an irregular open channel, and the influence of sponge city reconstruction scheme on design rainfall hydrological process in different return periods based on the SWMM(stom water management model) model.The results show that: the SWMM model can be used to simulate the process of "flooding on road"in the hillside area, and the rainfalt-runoff process can be effectively ont rolled by the select ed modificat ion scheme(low impact development and drainage system reconstruction); for different return periods(1 year,3 years, and 5 years)w ithin 5 years,the redution rates of total runoff and peak flood discharge from Out01 and Out 02 are over 20% and 10%, respect ively, the peak water level reduction rate at Out 01 is greater than 15%, which significantly reduces the impact of the "road flood"disast er in the study area.This study can provide a theoretical basis and significant reference for the simulation of "flooding on road"and the construction and management of sponge cit ies in the hillside area.

国家自然科学基金（51579007）；济南市海绵城市水循环演变与水文过程模拟项目