基于海绵城市理念的城市道路改造方案设计探讨

Discussion on urban road reconstruction scheme design based on sponge city concept

本文以芦潮港社区道路海绵化改造工程为例,探讨了海绵城市建设过程中,道路的海绵化改造方案,包含了城市道路净、渗、蓄、缓、排的系统建设模式。介绍了海绵型城市道路中人行道生态树池、侧分带雨水花园、景观旱溪、人工湿地及雨水调节净化等相关附属设施的设计方案,并对道路改造设计方案下的年径流总量、年径流污染物控制及渗透设施进行了校核。结果表明,该城市道路海绵化改造设计方案可满足海绵城市控制目标。可为其他类似海绵化城市进程中,海绵化道路改造工程提供借鉴和参考。

Taking the road sponge reconstruction project in Luchaogang community as an example,this paper discusses the sponge reconstruction scheme of roads in the process of sponge city construction,which includes the system construction mode of urban road cleaning,seepage,storage,slow drainage.This paper introduces the design of related ancillary facilities such as sidewalk ecological tree,side zonal rainwater garden,landscape dry stream,constructed wetland and rainwater regulation and purification,and checks the annual runoff amount,annual runoff pollutant control and infiltration facilities under the road reconstruction design scheme.The results show that the sponge transformation design scheme of urban roads can meet the control goal of sponge city.It can provide reference for other sponge road reconstruction projects in the process of similar sponge cities.