基于排水系统动态运行特征的绿色基础设施布局
Chen Shen1, Xin Dong2, Luyao Wang1
1School of Environment, Tsinghua University, Beijing 100084, China.
概括
城市洪水淹没了排水系统. 将绿色基础设施 (GI) 与下水道网络分析相结合,可以确定有效的雨水管理和洪水减缓的关键节点.
科学领域:
- 环境工程 环境工程
- 城市水文学 城市水文学
- 水资源管理 水资源管理
背景情况:
- 由于频繁的暴雨,城市洪水正在增加,使传统的灰色基础设施和排水网络受到压力.
- 绿色基础设施 (GI) 显示出对减缓洪水的承诺,但其与暴风雨期间的动态下水道系统运行集成的研究不足.
- 现有的雨水管理缺乏关注降水事件期间下水道网络的实时液压和拓动态.
研究的目的:
- 开发一种新的方法,用于在降雨事件期间识别城市下水道网络中的有影响力的节点.
- 整合液压特性和拓结构,用于动态下水道网络分析.
- 根据影响性节点分析提出有效的绿色基础设施 (GI) 布局方案,以加强雨水管理.
主要方法:
- 提出了一种新的方法,将液压特性与下水道网络的拓结构相结合.
- 根据其在动态流入条件下对网络连接的贡献来确定有影响力的节点.
- 雨桶被用作示例的地理标志,根据节点等级生成了14个布局方案.
主要成果:
- 该研究成功地确定了下水道网络中的有影响力的节点,这对于了解风暴期间的系统行为至关重要.
- 在表现不佳和表现良好的节点实施地理标志性措施表明,对减轻洪水的影响有多种但显著的好处.
- 拟议的方法为优化地理标志位置和增强雨水管理策略提供了新的视角.
结论:
- 这种新的方法有效地整合了下水道网络水力学和拓学,以确定雨水管理的关键节点.
- 绿色基础设施 (GI) 在确定有影响力的节点的战略实施可以显著提高城市的抗洪能力.
- 这项研究强调了考虑动态下水道系统运营对于协同有效的雨水管理解决方案的重要性.
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