城市集雨系统设计创新思维

Innovative Thinking in Design of Urban Rainwater Harvesting System

摘要: 我国北方城市缺水严重，降雨时段集中，由于地面不透水，大量雨水被弃掉，如何有效利用雨水，解决城市水资源短缺一直是人们关注的一个悬而未解的生态问题。本文采用系统工程的办法，设计了一套城市集雨系统，可以将洪水季节的雨水积存在城市内部和周边地下，节约并补给地下水源。创新性地提出了路旁蓄水斗的设计方案，并根据都江堰的水利原理，采用高低进水口，将降雨初期的污水和中后期的净雨，分选到雨污两个排水系统，可以在城市供排水系统设计中加以应用。

Abstract: Cities in northern China suffer from severe water shortages and concentrated rainfall periods. As the ground is impervious, a large amount of rainwater is discarded. How to effectively use rainwater and solve urban water shortages has always been an unsolved ecological problem that people are concerned about. This paper adopts the method of systematic engineering to design a set of urban rainwater harvesting system, which can accumulate rainwater in the city and surrounding underground in the flood season, saving and replenishing the groundwater source. Innovatively proposed the design scheme of the roadside water storage bucket, and according to the water conservancy principle of Dujiangyan, using high and low water inlets, the sewage in the early stage of rainfall and the net rain in the middle and late stages are separated into two drainage systems, which can be used in the design of urban water supply and drainage system.