LI Ming.Local Resin Curing Repair and Pretreatment Technology of Drainage Pipes under High Water Pressure[J].China Water & Wastewater,2020,36(20):45-50.
高水压条件下排水管道局部树脂固化修复及预处理
- Title:
- Local Resin Curing Repair and Pretreatment Technology of Drainage Pipes under High Water Pressure
- Keywords:
- drainage pipe; high water pressure; trenchless; local repair; resin curing; grouting and plugging
- 摘要:
- 由于城镇排水管道多处于繁华地区，不允许开挖或开挖成本较高，且会影响交通和市容市貌，因此非开挖修复技术应运而生。针对福州市城区排水管网改扩建工程（连坂片区）高兴路排水管道的缺陷，主要研究高水压条件下排水管道局部树脂固化修复前的预处理技术。针对排水管道渗漏严重的情况，难以直接采用局部树脂固化的方式进行修复，因此，先采用化学注浆堵漏的方式进行预处理，注浆材料采用比利时进口的PUR-X100和ACRYL-X1000专用注浆材料，然后进行局部树脂固化修复。该注浆材料和预处理技术在国内首次应用于排水管道非开挖局部修复工程，对今后国内类似的工程具有参考意义。
- Abstract:
- Since urban drainage pipelines are mostly located in the prosperous area where excavation is not allowed or costly, and it may affect the traffic and the city appearance, the trenchless repair technology came into being. In view of the defects of drainage pipeline reconstruction and expansion project in Fuzhou City (Gaoxing Road, Lianban area), the pretreatment technology before the local resin curing repair of the drainage pipeline under high water pressure conditions is studied. In view of the serious leakage of drainage pipeline, it is difficult to directly adopt the local resin curing method for repair. Therefore, chemical grouting and plugging was used for pretreatment, and PUR-X100 and ACRYL-X1000 imported from Belgium were used as special grouting materials to carry out the local resin curing repair. The grouting material and pretreatment technology are first used in the trenchless local repair project of drainage pipeline in China, which has guiding significance for similar projects in China in the future.
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