摘要
我国城市地下污水管网常有设施老化、能力不足、雨污混(错)接、污水渗漏、管道功能及结构性缺陷等问题,导致黑臭水体问题愈发严重,老旧污水管网的修复改造工作刻不容缓.本文以南湖区污水管网提升改造工程为例,从管网现状、修复工艺、修复改造策略三个方面详细探讨市政污水管道修复改造思路及技术要点,为同类城市污水管网改造项目提供技术借鉴.
Abstract
There are common problems in urban underground sewage system,such as aging facilities,insufficient ability,mixed(wrong)connection of rain and sewage,sewage leakage,pipeline function and structural defects,resulting in the increasing problems of black and odorous water bodies.Thereby the old sewage systems urgently need renovation.This article takes the sewage system upgrading and renovation project in Nanhu District as an example,explores the ideas and technical points of municipal sewage pipeline renovation in detail from three aspects:the present situation of the sewage systems,renovation techniques and renovation strategies,providing technical reference for similar urban sewage system renovation projects.
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