On the influence of the cost of transport on the floor crosscuts on the most advantageous dimensions of the mine field

Abstract

This article is devoted to the assessment of the impact of the cost of hauling minerals along floor crosscuts on the most advantageous longwall dimensions of the mine field of a vertical shaft opening a suite of steeply dipping seams, determined by the method of L. D. Shevyakov. The cost of hauling minerals along crosscuts during the development of a suite of steeply dipping seams by a vertical shaft with floor crosscuts increases with the increase in the number of floors in the mine field and decreases the most advantageous number of floors against the values ​​given by L. D. Shevyakov's formulas derived without taking this factor into account. In exceptional cases (location of the mine outside the suite with a small angle of dip of the seams), the number of floors determined without taking into account the cost of transport along floor crosscuts may exceed their most advantageous number by 50% or more.