基于海绵城市理念的市政既有道路改造施工技术  

Construction Technology of Existing Municipal Roads Reconstruction Based on Sponge City

作　　者：车璐 李嘉华[1] CHE Lu;LI Jiahua(School of Civil Engineering and Architecture,Southwvest University of Science and Technology,Mianyang Sichuan 621010,China)

机构地区：[1]西南科技大学土木工程与建筑学院,四川绵阳621010

出　　处：《施工技术》2020年第17期53-55,共3页Construction Technology

摘　　要：以成都市某老旧小区既有市政道路改造项目为研究对象,通过分析现状条件,提出基于海绵城市理念的绿化带蓄积、溢流井收集、雨水过滤、市政管网存储循环利用方案;然后,从下沉式绿化带、人行道透水铺装和溢流蓄水设施3方面详细阐述道路改造施工过程;最后,分析改造工程中的施工难点和重点。实践证明,经过采取渗、排、蓄、净等施工改造后的既有市政道路大大提高雨水资源利用率,该路段常年内涝问题得到充分缓解,同时植被绿化浇灌用水显著减少。This paper takes the existing municipal road reconstruction project in an old community in Chengdu as the research object,and through analysis of the current conditions,the recycling scheme of green belt accumulation,overflow well collection,rainwater filtration,municipal pipe network storage is put forward based on the concept of sponge city.Then,the road reconstruction construction process is elaborated from three aspects,including sunken green belt,permeable pavement and overflow storage facilities.Finally,the construction difficulties and key points in the reconstruction project are analyzed.Practice proves that the existing municipal roads after the construction transformation of seepage,drainage,storage and purification greatly improve the utilization rate of rain water resources,the annual waterlogging problem of this section is fully alleviated,and the water consumption for vegetation greening irrigation significantly reduces.

关 键 词：市政道路 海绵城市 改造 施工技术 

分 类 号：U418.6[交通运输工程—道路与铁道工程]