粘钢技术在输水管竖井加固中的应用

Binding steel technology applied for reinforcement of delivery pipeline shaft

１９７６年汛前发现响水潭水库输水管竖井圆筒底部与闸室连接处的下游出现环形水平裂缝，对此当年曾加固处理。１９８６年复查时，发现竖井原处又出现了类似的环形裂缝，并有新的发展，为确保工程安全，于１９９４年３月再次加固。此次加固采用先止水，后粘钢板的加固方法，收到很好的效果。

The annular and horizontal fissures were discovered at downstream of connection between the bottom of delivery pipeline shaft and the gate chamber of the Xiangshuitan Reservoir before flood period in 1976. And it was reinforced in same year. During a reexamination in 1986, the similar annular fissures were discovered again at the original place of shaft, and it has new expands. Reinforcement was made again for the project security in 1994. In this reinforcement, the technique is to seal water first, and then to bind steel slab. The effect is good.