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在水电站引水道系統的灌浆施工中,封填钻孔是灌浆工作的最后一个工序。过去由于沒有完备的施工用具,系用手工堵塞,因此不易保証质量,特別是堵塞隧洞的边孔及顶孔則更为困难。为了解决这个問題,我队学习了兄弟四队的經驗后,发动群众反复多次試驗,終于制成一种气动活塞式封孔器,有效地解决了这个問題。在一年来的边試驗、边使用、边改进的过程中,初步积累了一些經驗。到目前为止,我們用这种封
In the grouting construction of diversion channel system of hydropower station, the sealing and drilling is the last step of grouting work. In the past, there was no complete construction tools, which were clogged by hand. Therefore, it is not easy to guarantee the quality. In particular, it is more difficult to block the side and top holes of the tunnel. In order to solve this problem, my team learned the experience of the brothers and four teams, mobilize the masses to repeatedly test many times, and finally made a pneumatic piston plug, effectively solve this problem. In the course of the past year, we have accumulated some initial experience while using it and improving it. So far, we use this seal