兴义木浪河水库一期导流洞的灌浆封堵方法

Methods for Sealing and blocking the First Stage Diversion Tunnel of Mulanghe Reservoir with Grouting Process in Xinyi,Guizhou

木浪河水库大坝一期导流洞 ,由于特殊原因造成进出口被大量堆碴覆盖 ,难以用常规方法封堵。本文介绍采用洞顶钻孔级配投料 ,灌浆固结的封堵方案进行施工 ,取得了良好的效果。

WT5”BZ]Due to a particular reason that both inlet and outlet are covered by accumulated fragments,the first stage diversion tunnel of Mulanghe river reservoir dam is difficult to seal and block by means of ordinary approaches.This paper deals mainly with a new sealing and blocking method in which grading material injection through drilling holes at the top of the tunnel and grouting consolidation are adopted in the construction.It is indicated that the effect is good.