水域长距离顶管穿越管道安装方案探究

Exploration of Pipeline Installation Scheme for Long Distance Pipe Jacking through Water Area

某工程穿越河流受地质条件限制采用顶管方式穿越,顶管穿越施工结束后套管内安装D1219 mm管道,考虑到水域顶管穿越深度大,对整体预制发送方案与整竖井内焊接、逐根安装方案进行了探究。管道焊接、检测、防腐完成后,采用滚轮+卷扬机牵引的方式完成套管内管道安装,采用整体吊装方式完成竖井内管道安装。通过以上技术应用,可高效、快捷、安全地完成长距离顶管的管道安装工作。

After the completion of pipe jacking,D1219mm pipe is installed in the casing.Considering the large crossing depth of pipe jacking in the water area,the whole prefabrication sending scheme and the welding and one-by-one installation scheme in the whole shaft are explored.After pipeline welding,testing and anticorrosion are completed,the pipes in the casing are installed by means of roller+hoist,and the pipes in the shaft are installed by means of integral lifting.Through the application of the above technology,the pipeline installation of long distance pipe jacking can be completed eff iciently,quickly and safely.