Simulation of deposit parameters in underground development mining

The article is aimed at improving development mining to
prepare an ore body for stoping by access ramps to provide comfortable
conditions and high technical and economic indices in underground
mining. Efficient parameters of underground mining are chosen in the
course of simulating data on the mining theory and practice considering
ore losses and dilution on the basis of critical analysis of uranium mining
enterprises’ activities. The research provides data on geological and
engineering zoning of an ore deposit and physical-mechanical properties of
ore bearing rocks. The advanced experience is systemized and there is
provided system analysis of modern development mining schemes with
access ramps (ring, spiral, one-way inclined, central inclined and across the
strike). The research recommends schemes of development mining and
substantiates their advantages. There are quantitative indices of physical
simulation of development variants as to drawn ore quality according to
criteria of soil location in ore draw points. The scientific novelty implies
developing the criterion of optimality and ranking variants of development
mining according to technical-economic and geomechanical indices
considering some technological factors as well as the number of stopes
operating simultaneously on the level. The study consists in increasing
authenticity of development projects through applying complex schemes of
access ramps according to the complex criterion of increasing mining
depths, equipment application, ventilation and underground mine capacity.