考虑城市致洪因素的城市高效排水系统优化设计研究

Study on Optimal Design of Urban Efficient Drainage System Considering Urban Flood-Causing Factors

针对目前城市排水系统中智慧排水采集的信息不够完善,且存在一定时延性的问题,提出了一个考虑致洪因素的城市高效排水系统优化方法。通过对城市区域内排水户进行类型划分,并结合信息点密度对区域内污水量排放情况进行预测,对地下管网的设置提出对应建议。同时根据污水量排放情况以及暴雨预测结果对城市内易内涝点进行确定,针对易内涝点做重点建设。结果表明,研究设计的预测方法的预测误差均在10%以内,能够实现准确的污水量预测。

Aiming at the problem that the information collected by intelligent drainage in urban drainage system is not perfect and has some time ductility,an optimization method of urban efficient drainage system considering flood-causing factors is proposed.Based on the classification of the drainage households in the urban area and the prediction of the discharge of sewage in the area combined with the density of information points,the corresponding suggestions for the setting of underground pipe network are put forward.At the same time,according to the discharge of sewage and the forecast result of heavy rain,the waterlogging points in the city are determined,and the key construction is done.The results show that the prediction error of the designed prediction method is less than 10%,which can realize the accurate prediction of sewage volume.