Trenching speeds depending on ledge height and sinking methods

Abstract

High trenching speeds are necessary to reduce construction time and increase the production capacity of open pits.During normal operation, the speed of trenching depends on the intensity of mining, the length of the mining front, the direction of front movement in relation to the occurrence of the ore body, the height and number of mining ledges that are in simultaneous mining, the width of working sites and other factors and can be determined by the ...