城市暴雨径流控制与河道排蓄优化调控方法的研究

发布时间：2018-03-17 23:02

本文选题：雨洪管理　切入点：SWMM　出处：《天津大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着城市化的发展,区域水文生态平衡被打破,致使暴雨内涝频发,径流污染严重。探求如何满足环境、生态、经济等多重效益的城市雨洪管理措施,已成为城市发展所面临的挑战之一。本次研究选用SWMM(Storm Water Management Model)雨洪管理软件进行模拟分析。首先探究出一条建模新方法,并用此方法完成了研究区域雨水系统与河道系统的建模工作。接着设计了降雨历时120min、重现期分别为1a、2a、5a和10a的四场芝加哥型降雨。然后在设计降雨下分别对径流、管网、泵站以及河道进行分析,探索出径流变化情况、检验了管网承载能力、归纳出泵站运行规律、分析了河道受纳水平,并对泵站的优化调控给出建议。之后研究了非雨季时水系循环的可能,提出了水系循环的实现方案,分析了循环时河道与管网的表现,并给出了循环周期的选择范围。LID(Low Impact Development)作为径流控制的有效手段,自问世以来被广泛的研究与应用。本次研究选择生物滞留池、植草沟和渗渠三种LID技术进行径流控制模拟,分析其径流控制各方面的综合效果,并对生物滞留池的规模与作用进行了评估。最后对LID在我国的应用前景进行了展望。本次研究实现了SWMM对河道的模拟,探索出一些规律,并提出一些优化调控方法,以希为后续研究和实际工程提供些许参考。
[Abstract]:With the development of urbanization, the regional hydrological ecological balance has been broken, resulting in frequent rainstorm waterlogging and serious runoff pollution. Explore how to meet the environmental, ecological, economic and other multi-benefits of urban rain flood management measures, It has become one of the challenges of urban development. In this study, we selected SWMM(Storm Water Management Model rain and flood management software for simulation and analysis. First, we explored a new modeling method. Using this method, the modeling work of Rain Water system and river system in the study area is completed. Then, four Chicago rainfall patterns with rainfall duration of 120 minutes and recurrence periods of 1a / 2 a / 5a and 10a respectively are designed, and then the runoff and pipe network are analyzed respectively under the design rainfall. Through the analysis of pump stations and river channels, the variation of runoff is explored, the carrying capacity of pipe network is tested, the operating law of pump stations is concluded, and the acceptance level of river is analyzed. The optimal regulation and control of pumping stations are suggested. Then, the possibility of water circulation in non-rainy season is studied, the scheme of water system cycle is put forward, and the performance of river channel and pipe network during circulation is analyzed. As an effective means of runoff control, the selection range of cycle cycle. Low Impact development has been widely studied and applied since its inception. In this study, three kinds of LID techniques, biological detention pool, grass trench planting and seepage channel, are selected to simulate runoff control. The comprehensive effect of runoff control is analyzed, and the scale and effect of biological detention tank are evaluated. Finally, the prospect of application of LID in China is prospected. In this study, the simulation of river course by SWMM has been realized, and some laws have been explored. Some optimal control methods are proposed to provide some references for further research and practical engineering.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：X52;TU992

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