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缓倾斜厚矿体的开采,当矿体位于1200米深度以下时,高岩石压力控制问题的解决已成为必要的事。优先回采高品位矿石并保护上复低品位矿石以便尔后回采的必要性,以及安全的采矿条件的需要等,都要求我们把选择胶结材料全面充填采空区作为控制岩石压力的主要
The mining of gently inclined thick ore body has solved the problem of high rock pressure control when the ore body is located below 1200m depth. The need to prioritize high grade ore and protect the lower grade ore for subsequent recovery and the need for safe mining conditions require that we fully select the gob of fully-filled goafs as the primary control of rock pressure