程涛, 黄本胜, 邱静, 赵璧奎, 徐宗学. 基于洪涝削减效果的海绵措施优化布局研究[J]. 水力发电学报, 2021, 40(7): 32-46.
引用本文: 程涛, 黄本胜, 邱静, 赵璧奎, 徐宗学. 基于洪涝削减效果的海绵措施优化布局研究[J]. 水力发电学报, 2021, 40(7): 32-46.
CHENG Tao, HUANG Bensheng, QIU Jing, ZHAO Bikui, XU Zongxue. Optimization of overall layout of sponge city facilities for flooding alleviation effect[J]. JOURNAL OF HYDROELECTRIC ENGINEERING, 2021, 40(7): 32-46.
Citation: CHENG Tao, HUANG Bensheng, QIU Jing, ZHAO Bikui, XU Zongxue. Optimization of overall layout of sponge city facilities for flooding alleviation effect[J]. JOURNAL OF HYDROELECTRIC ENGINEERING, 2021, 40(7): 32-46.

基于洪涝削减效果的海绵措施优化布局研究

Optimization of overall layout of sponge city facilities for flooding alleviation effect

  • 摘要: 为应对城市洪涝等水安全问题,2015年起我国大力推广海绵城市建设。不同海绵措施的作用机理不同,其空间布局会显著影响洪涝削减效果。本研究以济南市海绵城市示范区为例,基于城市水文水动力学多过程耦合模型,通过多情景洪涝模拟,分析了海绵措施不同布局的作用效果,并从流域水循环视角提出洪涝控制策略。结果表明,上游布设低影响开发(LID)措施能有效控制风险区面积,下游布设LID具有良好的径流量和水深控制效果,而上游布设LID、下游改造管网的方案能兼顾马路行洪风险和内涝风险双重控制效果。具有与济南特征类似或不同的城市可从流域水循环视角出发,分析径流形成和水循环规律,采取适应区域水循环特征的具体措施。

     

    Abstract: To address urban flooding and other water issues, a sponge city program(SCP) and its implementation have been promoted across China since 2015. Various SCP measures come into play in different mechanisms, and their overall spatial arrangement influences flooding alleviation effect significantly. This study uses a hydrological-hydrodynamic multi-process coupled model to examine the responses of urban flooding to different SCP measure combinations and different rainfall scenarios in the SCP pilot area of Jinan. We analyze the effect of different overall SCP measure layouts and work out urban flood control schemes from the perspective of watershed hydrological cycling. Results show that implementing low impact development(LID) measures in the upstream area results in a significant decrease in the risk area, while the runoff and inundation are effectively controlled when the measures are implemented downstream. And a comprehensive effect of risk area reduction and inundation control is achieved when a scheme of implementing LID measures in the upstream and upgrading the drainage pipeline network in the downstream is applied. Cities with features similar to Jinan could adopt such schemes or take site-specific schemes through analysis of their runoff generation and concentration processes from a perspective of watershed hydrological cycling. Areas with distinct characteristics should follow the cycling pattern and implement corresponding measures.

     

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