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溜管施工工艺主要包括降坡开挖、主管道预制与管端处理、防腐层保护、溜管施工、坡顶连头。阐述了各工艺的施工技术要求,介绍了施工的质量要求与安全保证措施,提出建议:管沟开挖前进行坡比试验,管沟开挖后及时测量管沟深度和坡度,并制定切实可行的交叉作业安全措施。该方法已成功应用于西气东输二线部分管段的施工,可为大口径长输管道工程陡坡段施工提供参考。
Pipeline construction process mainly includes slope excavation, main pipe prefabrication and pipe end treatment, anti-corrosion protection, pipe construction, connecting the top of the slope. The technical requirements for the construction of each process are described. The construction quality requirements and safety assurance measures are introduced. Suggestions are put forward as follows: the slope ratio test before the trench excavation, the depth and slope of the trench after the trench excavation should be measured in time and the feasible Cross-job safety measures. The method has been successfully applied to the construction of some sections of the second West-East Gas Pipeline and can provide references for the construction of large-diameter long-distance pipeline projects.