Development of low-power shale beds by mounted rippers

Abstract

Continuous improvement of technology and mechanization of open-pit mining operations has made it possible to develop mineral deposits represented by low thickness layers of complex structural structure. From the point of view of economic efficiency the most interesting is the selective development of the formation, which has a number of advantages over partially selective and gross excavation: preparatory works are developed independently of excavation and loading; losses of oil shale are minimal; qualitative averaging of organic mass in the face is achieved; excavation and loading machines and technological transport do not dwell on the movement of rock layers; there is no need for mechanical method of enrichment of oil shale; drilling and blasting method is not necessary.