摘要
截至 2021 年年末,全国城市污水处理厂污水处理率为 97.89%,污水集中收集率为 68.6%,雨污合流、混接、直排、渗漏等情况较普遍.可以通过采取合流管道分流改造、污水直排口改造、混接改造等措施,解决污水排入河道和外水进入污水管网的问题,实现排水管网的提质增效.为保证施工质量,文章通过总结工程实践,对管材、接口、检查井、施工方式、管道覆土、道路修复等设计要点进行了介绍,旨在为排水管网提质增效相关建设提供参考.
Abstract
By the end of 2021,the sewage treatment rate of urban sewage treatment plants in China is 97.89%,and the sewage centralized collection rate is 68.6%.The situation of rain and sewage confluence,mixed connection,direct discharge and leakage is common.The problems of sewage being discharged into rivers and external water entering the sewage pipe network can be solved by taking measures such as diversion transformation of confluence pipeline,transformation of sewage direct discharge outlet,mixed connection transformation,so as to improve the quality and efficiency of drainage pipe network.In order to ensure the construction quality,this paper summarizes the engineering practice,and introduces key design points such as pipe materials,interfaces,inspection wells,construction methods,pipeline soil covering,road repair,aiming to provide reference for the quality and efficiency improvement construction of drainage pipe network.
NETL
NSTL
万方数据