跨越输气管桥不停气大修施工
The overhauling of crossover bridge for gas transmission pipeline while the pipeline was in service
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- DOI:
- 作者:
- 肖金学
Xiao Jinsue
- 作者单位:
- 四川油气田建设总公司第二工程公司, 四川省双流县华阳镇 610213
- 关键词:
- 钢结构;管道跨越;管道腐蚀;管道维修
Steel structure;Pipeline crossing;Pipeline corrosion;Pipeline maintenance
- 摘要:
- 通过天然气管道跨越管桥大修施工，将三跨双塔扇形斜拉索管桥结构改造成为斜拉索─悬索的混合结构，增加了跨越管桥的稳定性，本文着重介绍利用现有场地并在维持管道正常输气状况下对管道设施加固、更换及带气补焊的施工方法和经验。
By overhauling a crossover bridge for a gas transmission pipeline, the fan- shaped,stayed- cable pipeline bridge with three spans was changed into suspended- stayed cable structure which increases the stability of the bridge. This paper typically introduces the construction method and experiences in reinforcing pipeline facilities, replacing and repair welding while the pipeline was in service and utilized the existing construction site and maintained the normal operation of the pipeline.1995,6(6): 40-42分类号：TE973