地下引水管道灌浆加固修复技术研究

Study on the Technique of Reinforcement and Rehabilitation for Underground Diversion Pipe by Jet Grouting

地下管道免开挖加固修复技术，就是利用高喷技术在管道四周进行全包裹围封，形成骨架，并在管道以下营建高喷凝结体承重底板，与围封骨架连成一体，加大地基受力面积；采用静压灌浆调整地基应力；封堵清淤及断口焊接相结合的工艺方法．该方法经哈尔滨第三发电厂重力引水管、汉川电厂自流引水管及徐州市朝阳南路立交桥排水管的加固修复实践表明，该法施工速度快、效果好。

In this paper, it is emphatically expounded of the technique of reinforcemcnt andrehabilitation for diversion pipe, and put forward of the principle of the diversion pipe reinforcement and rehabilitation and the feasible construction plan. lt is proved with the practical projects.