ABSTRACT

In accordance with the general strategy of selecting the parameters of the fastening system elements in the preparatory mine working, depending on the geological and mining conditions for its maintenance, this chapter determines the rational parameters for the resin-grouted roof bolts and rope bolts location that strengthen the roof rocks of the in-seam working. The rope bolts perform the main function in the process of maintaining the preparatory mine working in the area of stope works influence. The deep strengthening of the roof rocks, the main effect of which is to restrict the stratification of a thick structure of rocks of the immediate and main roof, not only prevents their lowering into mine working, but also increases the resistance to the rock pressure. The evidence base has been substantiated for cardinal limitation of the rock pressure manifestations by formation in the roof of a thick armored and rock plate using a combined roof-bolting system.