Method of explosive destruction of the array of different strengths rocks
Consider the method of preparation of different strengths of rocks for excavation using the technique of cyclic and continuous action by the example of Jeroy-Sardara phosphorite deposits Kyzylkum region of Uzbekistan. One of the features of the structure of this field is the presence of soft layers of solid rock intercalations, requiring prior destruction. Method used at the field of explosive destruction of arrey of rocks due to the use of explosive energy deep-hole charges on hard seam. But this method does not fully ensure the destruction of the rock mass. The proposed method consists in the fact that over the strong seams cut slits in the thick overburden, have they shaped charges of explosives and blow, which provides qualitative different strengths crushing rocks.