基于弹性组件的城市洪水蓝绿灰色排水系统的评估
Nakyung Lee1, Juyeon Jang1, Sanha Kim1
1Department of Civil, Environmental and Plant Engineering, Konkuk University, Seoul, 05029, Republic of Korea.
Journal of environmental management
|November 18, 2025
概括
本研究引入了一种弹性框架,用于评估城市排水系统,发现集成的下水道管道,拘留盆地和站提供了优越的防洪防御. 这种方法有助于规划各种降雨情景.
科学领域:
- 环境工程 环境工程
- 城市水文学 城市水文学
- 弹性评估 弹性评估
背景情况:
- 城市排水系统因极端降雨事件而面临越来越大的压力.
- 评估洪水前防御性能对于城市弹性至关重要.
- 现有的框架可能无法完全捕捉不同条件下的系统动态.
研究的目的:
- 提出城市排水系统洪水前防御性能的实际评估框架.
- 将抗灾能力的四个组成部分 (4-R) 与防洪指数 (FDI) 整合起来.
- 评估韩国首尔的不同蓝绿灰色基础设施场景.
主要方法:
- 开发了一个结合4R弹性和外国直接投资的框架.
- 将框架应用于Gunja和Banpocheon流域,使用EPA SWMM 5.2.2.
- 模拟了三个场景:只有下水道管道 (SP),SP带有扣留盆地 (SP-DB) 和SP-DB带有站 (SP-DB-PS).
主要成果:
- 综合的SP-DB-PS场景显示出明显更高的防洪性能和稳定性.
- 短时间,高强度的降雨降低了仅在SP的情况下的外国直接投资.
- 带有拘留盆和站的系统表现稳定.
- 框架验证证实了设计与现实世界降雨事件之间的强烈对齐.
结论:
- 在4R框架内结合结构能力和适应性操作,可以增强防洪能力.
- 拟议的框架有效地支持对排水系统的战略规划和主动决策.
- 可解释的结果可以为风暴模式响应提供近乎实时的性能分析.
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