METHOD TO MAKE A MINE WORKING METHOD TO MAKE A MINE WORKING

摘要

Method to make a mine working includes installation of timbering, drilling and explosion of blast holes in the face and round the mine working. At that, one performs explosion of the detaching charges in the sides and the ceiling of the working, than one initiates the inclined slot holes with camouflet charges under the face of the working. After that one performs explosive destruction of the rocks in the face of the working, and than through drilling slot holes with variable length and explosion of charges of ES in those one forms round the working an oval zone of unloading.