污水管道常温固化修复技术

Sewer pipeline rehabilitation by ambient curing

北京市城市中心区大管径污水管道常年水流量大，传统翻转内衬法因不能带水修复而无法应用。我们创新性地提出了不断流拖入浸渍树脂衬管，充气加压保证与旧管贴合，常温固化的方法，解决了大直径污水管道非开挖修复的难题。

Sewer pipelines in Beijing central area are yearly filled with sewage water. Traditional CIPP technique is difficult in such eireumstanee. We innovatively solved the large diameter sewer pipe rehabilitation problems by pulling in the impregnated liner, inflating it inside to let it attached closely with old pipe, and curing in ambient temperature.