LIXuan.Waterlogging Control and Quantitative Assessment in Small Watersheds under the Guidance of Sponge City Concept[J].China Water & Wastewater,2026,42(12):101-106.
海绵城市理念下的小流域内涝治理与量化评估案例
- Title:
- Waterlogging Control and Quantitative Assessment in Small Watersheds under the Guidance of Sponge City Concept
- 摘要:
- 城市内涝治理需统筹蓝绿灰设施，但对其协同作用的量化研究不足。基于海绵城市理念，对绵阳市史君堰排水分区提出了内涝治理体系重构思路和方案，并基于暴雨洪水管理模型（SWMM）对内涝防治各系统贡献度进行量化分析。研究区域达到内涝防治标准时源头减排、管网排放、排涝除险系统的贡献度分别为5%、91%和4%，结果表明补齐排水管网基础设施短板是山地丘陵城市高密度建设区内涝治理的首要任务，但需耦合源头海绵设施和蓄排系统以缓解其边际效应递减现象。
- Abstract:
- Urban waterlogging control requires coordinated blue-green-gray infrastructure, yet quantitative studies on their synergistic effects remain insufficient. This study proposes a reconstruction framework for Shijunyan drainage area in Mianyang based on the sponge city concept, and conducts a quantitative analysis of the contribution rates of different waterlogging prevention systems using the SWMM. When the study area met the waterlogging control standard, the contribution rates of source reduction systems, pipe drainage systems, and storage-drainage systems were 5%, 91%, and 4% respectively. Results demonstrate that upgrading drainage pipe networks constitutes the primary task for waterlogging control in high-density urban areas of mountainous cities, but requires synergistic integration of source-control sponge facilities and storage-drainage systems to mitigate diminishing marginal effects.
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