异径穿插在燃气旧管道改造非开挖施工中的应用

Application of Different-Diameter Pipe Piercing in Reformation of Old Gas Pipeline

通过工程实例,分析了PE管异径穿插技术在燃气旧管道改造非开挖施工中的优越性和局限性,提出施工过程中的要点和采取的相应措施,对今后类似工程有一定的借鉴作用。

Through engineering example, the advantages and limitations of PE pipe piercing with different diameters in trenchless construction of old gas pipeline renovation are analyzed, and the key points in the construction process and corresponding measures are put forward, which can be used for reference for similar projects in the future.