Polyakovs'kyj V. Substantiation of rational parameters of explosive waves in the sand mining rocks near the underground constructions

The thesis is dedicated to substantiation of rational parameters of explosive in the sand mining rocks, for the secure carrying out of explosive works near the underground constructions. The new approach based on definition of parameters of secure carrying out of explosive works on the basis of an experimental research of laws of distribution of explosive waves and their interaction with underground structures is offered. The results of experimental researches of laws of formation of wave fields near a surface of the sandy massif are shown on the basis of which generalized dependence of the maximal pressure on depth of explosion and humidity of a ground for the first time is received. The features of interaction of explosive waves with underground cylindrical designs are investigated. The results of experimental researches of laws of formation of wave fields near a surface of the sandy massif are shown on the basis of which generalized dependence of the maximal pressure on depth of explosion and humidity of a ground for the first time is received. The features of interaction of explosive waves with underground cylindrical designs are investigated. For the first time is experimentally investigated a diffraction process on a underground cylindrical barrier, that has allowed to estimate the maximal pressure on suffers of underground structures near explosion. Based on the results of investigation, a new methodic of secure carrying out of explosive works near the underground constructions was proposed. Economic effect from introducing recommendations has formed 70,4 thousand grn.