大口径天然气管道安装焊接施工技术

Welding construction technology for installation of large diameter gas pipeline

针对山区天然气管道施工特点,结合近几年来国内大口径长输天然气管道对口及焊接技术,对山区大口径天然气管道焊接工艺、焊接材料、现场对口及焊接施工、常见焊接缺陷预防等技术进行了探讨,以指导实践。

According to the construction features of the gas pipeline in the mountain area,combining with domestic contra aperture and welding technology for long distance large diameter gas pipeline in the recent years,the thesis makes discussion on the welding technology,welding materials,field contra aperture and welding construction,the prevention technology for the common welding defects the gas pipeline in the mountain area,so as to guide practice.