城市雨水排水系统设计不确定性研究进展

Reviews on the Design Uncertainty of Urban Rainwater Drainage System

针对应对环境变化对城市雨水排水系统设计带来的影响,从城市暴雨分布规律、城市化进程、雨水管网模拟等方面,分析了国内外研究成果。提出应综合考虑随机、模糊、区间、粗糙等多种不确定性信息,构建城市雨水排水系统的设计模型。研究结果显示,环境变化改变了城市雨水排水系统的原有规律,且存在较大不确定性,可基于信息熵理论构建城市雨水排水系统设计模型,减小不确定性。

In order to deal with the impact of climate change on urban rainwater drainage system, this work provides a reference for the engineering designer. By means of the methods of literature review, this paper analyzes the latest research results from the aspects of the urban storm distribution law, the process of urbanization, the simulation of storm water pipe network and so on. It is proposed that the model for urban rainwater drainage syslem should he constructed with the consideration of stochastic, fuzzy, interval, rough and so on. The research results show that the original law of urban rainwater drainage system has been changed with the climate changes, and there is greal uncertainty that should he solved by the research.