补连塔矿2#煤井井筒施工新工艺

The New Method Applied for Sinking the No.2 Shaft at Bulianta Coal Mine

介绍了管棚支护、旋喷桩支护、立管桩过松散沙、流沙的新工艺及需要采取的专门技术措施 。

In shaft sinking,tubing support ,rotary shotcrete piling and vertical pipe pipelining methods are used to enable the shaft to psaa through loose and ruick sand layers.The paper presents an introduction to the new method and the special technical measures adopted,as well as the experience of shaft sinking by using this method.