Engineering Physics Annotation << Back ORE EXTRACTION PARALLEL CONVERGED CHARGES IN PHYSICAL AND TECHNICAL GEOTECHNOLOGIES M.V. LIZUNKIN, V.M. LIZUNKIN In the physico-technical and physico-chemical geotechnologies of underground development of complex-structured deposits, explosive ore stripping is used. The article presents the results of experimental studies of the technological process of ore stripping with parallel charges. Comparative indicators of the BVR parameters for the existing and proposed technology are given, conclusions are drawn about the expediency of ore stripping in parallel with converged rows. Keywords: ore, rebound, parameters of drilling and blasting operations, parallel charges, line of least resistance, specific consumption, granulometric composition, average piece size. DOI: 10.25791/infizik.11.2021.1237 Pp. 31-38.