大口径管道施工连头作业中的间隙控制

Gap Control in Large Diameter Pipeline Tie-in Operation

大口径管道连头作业是长输管道施工中收尾阶段的关键工程。文章从大口径管道连头作业所需的主要设备、连头作业特点、不同工况下连头间隙的控制要点、施工中影响间隙大小的各种因素及预防方法等方面对该施工经验进行了较为系统的总结。

Tie-in operation belongs to the last phase in large-scale long-distance pipeline construction.In this article,the experience of tie-in operation for large diameter pipeline is introduced systematically,which includes main equipment,tie-in operation characteristics,technical key points of tie-in gap control,factors affecting tie-in gap size during operation,and so on.