LI Ming.Local Resin Curing Repair and Pretreatment Technology of Drainage Pipes under High Water Pressure[J].China Water & Wastewater,2020,36(20 20):45-50.
Local Resin Curing Repair and Pretreatment Technology of Drainage Pipes under High Water Pressure
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
20 20
Page:
45-50
Column:
Date of publication:
2020-10-17
- Keywords:
- drainage pipe; high water pressure; trenchless; local repair; resin curing; grouting and plugging
- 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.
Last Update:
2020-10-17