城市道路海绵城市设计的建设效果评价及设计优化

基于嘉兴市现状城市道路海绵城市设计方法,根据道路横断面和有无退让绿地等情况,从指标完成情况、景观效果、施工难易程度、造价和运行养护等五个方面分析不同设计方法建设效果的优缺点并进行综合评价。在此基础上,从水质净化和水量控制两方面着手,针对现状城市道路典型横断面,最终提出过滤型雨水口、多功能雨水口、分隔带排水暗渠、生态树带等收集、净化和渗透雨水的优化技术措施,并给出了详细的设计图示,可为城市道路海绵城市设计提供参考。

Construction Effect Evaluation and Design Optimization of Urban Road Sponge City Design

Based on the current sponge city design method of urban road in Jiaxing City,the pros and cons of the construction effects of different design methods are analyzed and comprehensively evaluated from the following five aspects:index completion,landscape effect,ease of construction,cost and operation maintenance.Multiple situations are well investigated,including the road cross section and the green space concessions.Moreover,according to the analysis results,this paper proposes the following technical optimizations on collecting,purifying and infiltrating rainwater,such as filter type inlet,multifunctional curb inlet,divider drainage culvert,and ecological tree belt.The proposed optimizations focus on water quality purification and water volume control,targeting to the status of typical cross sections,and provide a detailed design diagram and a good reference to sponge-city design methods for the urban road.