旧燃气管道内聚乙烯穿插内衬管的结构行为  

Structural Behaviors of Polyethylene Lining Inserted in Old Gas Pipeline

作　　者：王立君[1] 谢广禄[2] 莫晓燕[1] 李首梦[1] 

机构地区：[1]天津大学材料科学与工程学院,天津300072 [2]大港油田天然气公司,天津300280

出　　处：《煤气与热力》2004年第10期535-538,共4页Gas & Heat

摘　　要：分析了聚乙烯内衬管从旧燃气管道内穿插跨越管道缝隙处,聚乙烯内衬承受管道内压的性能。结果表明,在管道内压作用下,穿插结构的径向膨胀变形主要集中在缝隙处的聚乙烯内衬上,且管道缝隙尺寸、管道内压和内衬壁厚对穿插结构的结构行为均有显著影响。This paper analyzes the performance that the polyethylene lining resists the internal pressure of the pipeline at spanned gaps, during its insertion inside the old gas pipe. The result shows that the radial distension deformation in insertion structure concentrates mainly at the polyethylene lining at gaps under the action of the internal pressure, and the structural performances of insertion structure are influenced markedly by the gap size, internal pressure and thickness of lining.

关 键 词：城镇燃气管道 非开挖敷设修复 穿插内衬管 

分 类 号：TU996[建筑科学—供热、供燃气、通风及空调工程]