过湘江管线穿插HDPE管内衬修复

HDPE Pipe Insertion Trenchless Construction Across Xiang River

利用穿插HDPE管内衬技术对因泄漏严重而停运多年的过江供水管道进行修复，既能彻底解决管道泄漏问题，又不减小管道过流面积，不影响航道正常航运，而且比更换新管大大节省费用和工期。

Using the technology of lining of HDPE pipe insertion to repair the river-crossed water-supplying pipeline which be long-time out-of-service, as thus, pipeline leaking can be settled entirely without cross section reduction and no effect on shipping, otherwise, cost and time be saved consumedly compared with replacing with new pipes.