Engineering Physics Annotation << Back METHOD OF DETERMINING THE SCOPE OF HOLE AND BOREHOLE BREAKAGE OF ORE BODIES OF COMPLEX STRUCTURAL DEPOSITS YU.P. GALCHENKO, V.M. LIZUNKIN, M.V. LIZUNKIN, E.D. YAKUSHEVA In the development of complex structural deposits, the selection of geotechnologies and its parameters is greatly influenced by the morphology of ore bodies, which determines the completeness of the extraction of balance reserves. The integral characteristic of the complexity of the structure of the ore body is the modulus of complexity of the vein, which takes into account the radius of curvature of the ore body, its power and degree of variability of elements of occurrence. The method of evaluation of the application area of hole and borehole breakage of low-power ore bodies of complex deposits is developed. Replacement of the hole breaking on low-power ore deposits with a nonlinear form on the borehole without reducing the quality of the ore produced is possible by increasing cutting length (depth of wells) with subsequent double ore sorting of mine mass in the mine or on the surface. The cutting length is determined by the developed method of determining the scope of application of borehole breaking of low-power veins with a modulus of complexity of more than 1.5. Keywords: complex structure deposit, ore body, morphology, complexity modulus, technique, hole breaking, borehole breaking, cutting length, ore sorting. DOI: 10.25791/infizik.02.2020.1120 Pp. 51-58.