基于高程模型和2D模型的城区自排系统提标改造方案
Upgrading and Reconstruction Scheme of Self-Draining Stormwater System in Urban Area Based on Elevation Model and 2D Model
唐文1
作者信息
- 1. 上海市政工程设计研究总院<集团>有限公司,上海 200092
- 折叠
摘要
近年来,已建城区自排系统的提标改造需求日益迫切,但对保留自排模式可行性进行定量分析,或增加分散调蓄设施实现市政系统提标的研究较少.文章以上海市某系统为研究对象,建立数字高程模型并耦合排水模型,通过竖向分析、内涝风险评估等进行定量分析,比选排水模式;并采用总体提标和局部内涝防治相结合的途径,实现系统排水能力达标.研究表明,研究范围内 90%以上区域可结合城市更新达到自排标高要求;局部高风险积水区可采用"雨水溢流井-调蓄管道-一体化泵井"的分散提标调蓄设施,结合雨水管道翻排有效消除积水.研究可为已建城区自排系统的提标改造提供参考.
Abstract
In recent years,there has been an increasingly urgent demand for upgrading and reconstructing self-draining systems in existing urban areas.However,there have been few researches on feasibility study of retaining self-draining mode based on quantitative analysis,or upgrading system capacity with decentralized storage facilities.Taking a stormwater system in Shanghai as an example,this research established a digital elevation model coupling with stormwater system model,and conducted quantitative analysis through elevation analysis and flood risk assessment,and compared and selected drainage patterns.Furthermore,in order to achieve system capacity improvement,this research adopted the method of combining overall system improvement and local flood control.The results indicated that over 90%of the research area was able to meet the self-drainage elevation requirements in combination with urban renewal.Besides,combined with stormwater pipe upgrade,the flood in high-risk area could be eliminated with the decentralized detention facilities consisting of overflow structure,detention pipe,and integrated pump well.This research can provide a reference for upgrading and reconstructing self-draining stormwater systems in existing urban areas.
关键词
自排系统/提标改造/分散式调蓄设施/数字高程模型/InfoWorks二维模型Key words
self-draining system/upgrading and reconstruction/decentralized stormwater detention facility/digital elevation model/InfoWorks 2D model引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据