【摘要】 简要介绍了常用的非开挖管道修复和更换技术,施工方法有内衬法修复管道,胀管法和钻削碎管法更换管道等。更多还原

【Abstract】 In this article,the usual non-excavating piping repair and exchange techniques,including inner lining technique,pipe expanding technique and drilling and cutting technique,were introduced.更多还原