高水壓條件下排水管道局部樹(shù)脂固化修復(fù)及預(yù)處理
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.
高水壓條件下排水管道局部樹(shù)脂固化修復(fù)及預(yù)處理
- 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:
- 由于城鎮(zhèn)排水管道多處于繁華地區(qū)，不允許開(kāi)挖或開(kāi)挖成本較高，且會(huì)影響交通和市容市貌，因此非開(kāi)挖修復(fù)技術(shù)應(yīng)運(yùn)而生。針對(duì)福州市城區(qū)排水管網(wǎng)改擴(kuò)建工程（連坂片區(qū)）高興路排水管道的缺陷，主要研究高水壓條件下排水管道局部樹(shù)脂固化修復(fù)前的預(yù)處理技術(shù)。針對(duì)排水管道滲漏嚴(yán)重的情況，難以直接采用局部樹(shù)脂固化的方式進(jìn)行修復(fù)，因此，先采用化學(xué)注漿堵漏的方式進(jìn)行預(yù)處理，注漿材料采用比利時(shí)進(jìn)口的PUR-X100和ACRYL-X1000專用注漿材料，然后進(jìn)行局部樹(shù)脂固化修復(fù)。該注漿材料和預(yù)處理技術(shù)在國(guó)內(nèi)首次應(yīng)用于排水管道非開(kāi)挖局部修復(fù)工程，對(duì)今后國(guó)內(nèi)類似的工程具有參考意義。
- 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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