一种闭环分析方法,以确保雨水源控制设计解决方案达到预期的目标
Sheng Wang1, Lidan Feng2, Yezi Yuan2
1State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Key Laboratory of Yangtze River Water Environment (Ministry of Education), Tongji University, Shanghai 200092, PR China.
Water research
|November 1, 2023
概括
这项研究引入了闭环分析 (CLA),通过使用30年模拟进行反来改进雨水源控制设计. CLA提高了设计准确性和有效性,用于管理城市排水及其对环境的影响.
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:
- 城市化增加了不透气的表面,导致雨水排放问题.
- 目前在中国的雨水源控制设计方法依赖于每日降雨数据,可能导致性能偏差.
- 现有的方法可能无法准确地反映各种降雨事件的现实性能.
研究的目的:
- 提出一种新的闭环分析 (CLA) 框架,以提高雨水源控制设计.
- 通过结合反机制来解决当前每日设计风暴方法的局限性.
- 提高雨水源控制设计的准确性和可靠性.
主要方法:
- 开发了四种CLA方法:每小时设计风暴分析,模型可信性检查,设计风暴确定没有下水道的系统,以及对有下水道的系统进行参数优化.
- 利用了30年的模拟期来进行数据反和性能评估.
- 应用了雨水数学模型进行全面分析.
主要成果:
- 门的案例研究表明了对CLA的30年模拟结果的可信性.
- 没有下水道的设计实现了预期的降雨量捕获比率 (αg) 在±3%以内.
- 采用地下排水管的设计达到了αg目标,并恢复了自然流水模式,在流水频率谱 (0.670-0.691) 中实现了高度相似性.
结论:
- 闭环分析 (CLA) 为雨水源控制设计提供了强大的方法进步.
- CLA确保设计达到性能目标,并促进更自然的水文条件.
- 拟议的框架提高了城市雨水管理战略的有效性.
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