The light curing sleeves play a role in protecting the 3PE anticorrosive layer during the directional drilling construction process of urban gas pipeline.The quality in construction of light curing sleeves is not up to standards and protective measures of light curing sleeves during the process of pipeline back pulling is improper,which leads to the damage of the 3PE anticorrosive layer of gas pipeline in the process of back pulling,bringing hidden safety hazards to the gas pipeline operation.The measures to improve the protection effect of light curing sleeves are described from the dimensions of material selection,the construction of light curing sleeves and the construction of pipeline back pulling.
关键词
燃气管道/光固化套/保护措施
Key words
gas pipeline/light curing sleeves/protective measures