城市地下燃气管道修复技术的应用

The Application of New Repairing Technolog of Urban Underground Gas Pipeline

本文介绍了城市地下燃气管道腐蚀的成因，改造旧煤气管道采用不开挖修复技术的方法，分析了该项技术发展的优势，从应用于工程上的翻转内村软管的施工实例，展现出不开挖道修复技术的广阔前景。

This paper describes the origin of corrosion of unban underground gas pipeline and a new technology to repair old gas pipeline without unearthing the pipes. the through analysis of the advantage of this unearthing restoration technology development illustrates the bright future of this technology.