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一种基于TOPSIS的模糊方法,以优先考虑高密度住宅区的低影响开发方法
Milad Mehri1, Sonia Sadeghi2, Seied Mehdy Hashemy Shahdany2
1Department of Water Engineering, Faculty of Agriculture Technology (Aburaihan), College of Agriculture and Natural Resources, University of Tehran, Tehran, Iran
概括
评估了六种低影响开发 (LID) 方法,用于城市排水管理. 雨桶与生物保留电池相结合,在减少排水量,经济和社会可持续性指标方面证明最有效.
科学领域:
- 环境工程 环境工程
- 城市规划 城市规划
- 可持续的水资源管理
背景情况:
- 城市地区面临着严重的水面下水流挑战,影响基础设施和环境.
- 低影响性发展 (LID) 为城市雨水管理提供了可持续的解决方案.
- 评估多个LID策略对于有效的城市水资源管理至关重要.
研究的目的:
- 评估和比较六种不同的LID方法用于城市地表下水控制.
- 根据减少排水量,经济和社会可持续性来评估LID的表现.
- 通过使用多标准决策分析,优先考虑城市环境中最有效的LID战略.
主要方法:
- 实施和评估六种LID方法:绿色屋顶,透沟,生物保留单元,雨桶和组合场景.
- 使用SWMM模型来量化排水量和峰值流量减少.
- 使用经济分析和专家问卷来评估社会可持续性.
- 应用 Fuzzy TOPSIS 多标准决策分析来确定方法优先级.
主要成果:
- 雨桶+生物保留细胞的综合场景被确定为最佳的LID策略.
- 这种最佳方法表明,在10年回归期降雨中,峰值下水流量减少幅度从23.1%到66.1%.
- 绿色屋顶+透沟方法实现了最大的体积减少 (2,737 m3),而单独的透沟显示了最低的 (273 m3).
结论:
- 结合LID方法,特别是雨桶+生物保留电池,在城市排水管理中提供了卓越的性能.
- 考虑水文,经济和社会因素的全面评估对于选择有效的LID解决方案至关重要.
- 在城市环境中,LID策略显著有助于减轻地表排水的不利影响.
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