ABOUT HOW TO STUDY THE PROPERTIES OF SOIL TO IMPROVE THE EFFICIENCY OF DRILLING AND BLASTING
The article provides information about how to study the strength characteristics of rocks in situ to determine the rational parameters of drilling and blasting. It is shown that the specification of rock properties in the manufacture of blasting is of great scientific and practical importance. The results of the study of the relationships between the processes of rolling cutter drilling and explosive destruction of rocks. It is demonstrated that the parameters of the process of drilling production wells allows to simulate the change of the strength characteristics of rocks in the excavation blocks and clarify the parameters of the down hole explosive charge. On the basis of obtained results the methodology of determining the value of specific consumption of explosives according to drilling production wells, which allows to build models of changes in the fortress of rocks on the height of the ledge, to determine the proportionality between the energy characteristics of processes of rolling cutter drilling and explosive destruction of rocks, as well as to clarify the mass of explosive charges in each well of an excavation unit. Also developed a method for rapid investigation of soil, which is to model the fortress of rocks on the basis of the data obtained in the process of drilling production wells. The resulting model serves as the basis for specification parameters of the charges in the wells of an excavation unit. With the use of simulations of rocks according to their difficulty and intensity of drilling may clarify a fracture of the array, which is especially important when the choice of a rational scheme of initiation of explosive charges.