煤矿立井井筒延深施工的方法

Talking about the method of shaft wall expanding construction

在煤矿立井井筒延深之前,要结合本矿的具体情况,对延深的施工顺序、施工方法、施工设备及其空间布置进行综合分析,确定合理的延深施工方案。井筒延深施工方案按工作面的推进方向可分:自上而下、自下而上以及自上而下和自下而上同时进行三大类。

Most multi - level exploitation of the mine. nor is a vertical shaft cut to the final level, and often the first dig to the upper level, then develop tunnel chamber, forming an early production system, put into a coal mining will be completed on the level before , and then proceed to the next excavation shaft, the timely preparation of a new production level, to ensure that production continued. This extension of the production wellbore and deepen the shaft extension is called deep.