HUANGLi-ping,SONGRen-jie,HEYue,et al.Problem Analysis and Optimal Design of Bioretention Swale near Municipal Roads in Pilot Sponge Cities[J].China Water & Wastewater,2023,39(8):89-96.
海绵试点城市道路生物滞留带的问题分析及设计优化
- Title:
- Problem Analysis and Optimal Design of Bioretention Swale near Municipal Roads in Pilot Sponge Cities
- 摘要:
- 通过对北京、重庆、贵阳、嘉兴、南宁、遂宁等六座国家级海绵城市建设试点城市的道路生物滞留带实例现状进行调研分析，总结了现有生物滞留带在土建设计、景观设计及运行维护等方面存在的问题，具体包括生物滞留带下沉过深、进水口缺少消能以及沉砂设施、进水口缺少导流措施、路缘石倾倒、景观效果欠佳、标高有误、垃圾混入、植物维护及泥沙处理不及时、溢流口被枯枝枯叶遮挡等，并针对这些问题提出了生物滞留带下沉深度、进水豁口和沉砂设施、路缘石和溢流口以及景观的优化设计方法和建议，并提供了详细的图示，以提升道路生物滞留带建设水平。
- Abstract:
- The current situation of bioretention swale near municipal roads in six national pilot sponge cities such as Beijing, Chongqing, Guiyang, Jiaxing, Nanning and Suining was investigated, and the existing problems in civil engineering design, landscape design, operation and maintenance of the existing bioretention swale were summarized, including excessive subsidence of bioretention swale, lack of energy dissipation and sand settling facilities at the inlet, lack of diversion measures at the inlet, kerb falling, poor landscape effect, wrong elevation design, garbage mixing, delayed plant maintenance and sediment treatment, overflow port blockage by dead branches and leaves and so on. To solve these problems, the methods and suggestions for optimizing the design of bioretention swale sinking depth, inlet, sand settling facilities, kerb, overflow port and landscape were proposed, and detailed drawings were provided to improve the construction of bioretention swale near the road.
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