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白源矿副井井筒通过茅口灰岩地质构造层时,采用快速注浆方法堵水,即采用掘进时使用的风钻先打探水孔,然后在探水孔中埋设注浆枪头,埋管后可即进行注浆,既不打设止水垫,也不需另搭工作台,节省了止水垫的养护时间和其它辅助作业时间,又使掘进与注浆钻孔机具一体化,获得了较好的技术经济效益。 一、概况 白源矿副井井筒净径6.0m,井深460m。表层为白垩系红层所覆盖,全井先后穿过三
When the mine shaft of Baiyuan Mine passes through the geological structure layer of Maokou limestone, the quick grouting method is used to block the water, that is, the water hole drilled by the pneumatic drill used in excavation is used to probe the water hole, then the grouting gun head is buried in the water exploration hole, The grouting can be performed afterwards, neither the water stop pad nor the other worktable need to be installed, the time for curing the water stop pad and other auxiliary work time are saved, and the integration of the driving and grouting drilling tools is also achieved A better technical and economic benefits. I. Overview Baiyuan mine shaft diameter 6.0m, well depth 460m. The surface is covered by the Cretaceous red beds, the whole well has crossed three