针对既有市政道路海绵城市精细化改造工程研究

Research on the Fine Renovation Project of Sponge Cities for Existing Municipal Roads

摘要:

随着城市化进程的加快，传统市政道路雨水排放模式的局限性日益凸显。以海绵城市理念为指导，分析现状侧分带较窄、不拆除路灯和标志标牌、现状侧分带敷设有雨水管道等情况，对现状市政道路海绵城市改造工作的影响。通过案例研究及分析，提出通过压缩现状辅道、主线机动车道、路侧带空间等方法，对现有侧分带进行拓宽；优化设计方案，重构汇水单元，将雨水检查井改造为具有雨水溢流收集功能的雨水溢流口等。方案的实施不仅通过海绵城市建设缓解了城市内涝，还最大限度地保留了既有市政设施，并为类似案例的雨水资源化利用提供了参考。

Abstract:

With the acceleration of urbanization, the limitations of the traditional urban road rainwater drainage model have become increasingly prominent. Guided by the concept of sponge cities, this paper analyzes the impact of current issues such as narrow side strips, non-removal of street lamps and signboards, and the presence of rainwater pipes in the existing side strips on the sponge city transformation of current urban roads. Through case studies and analysis, it proposes optimization design schemes such as widening the existing side strips by compressing the existing auxiliary roads, mainline motor vehicle lanes, and roadside spaces, reconstructing the catchment units, and transforming the rainwater inspection wells into rainwater overflow outlets with rainwater overflow collection functions. The implementation of this scheme not only alleviates urban flooding through sponge city construction but also maximally retains existing municipal facilities and provides a reference for the utilization of rainwater resources in similar cases.