The study on applications of conveyor transport in complex geological conditions of deep high performance quarries

The conveyor transport will remain as one of the most perspective types of transport for high-performance deep quarries in the near future. This is due to its main advantages, such as high efficiency, relatively low cost of transportation of the rock mass, large-angle lifting the rock mass, and others. The modern inclined conveyers could convey the rock mass with different physical and mechanical properties from soft to roach rock with designed rake angle up to 90 degrees. From the perspective of open-pit mining and conveyance of the mined rock on the surface, conveyors are established from 16 degrees to the angle equalled to gradient of the slope of spoil bank. At the same time, the placement of conveyor is implemented on spoil bank in a steep trench or foot pieces, mounted on the safety berms of rock and half-rock solids. However, such conditions conveyors accommodation is not suitable for complex geological conditions when the quarry side stacked unstable rocks. The paper presents the study on evaluating the possibility of establishing conveyor lift in complex mining and geological conditions of the quarry.