Bench Hight and Slope Angle on Lithium Ores Open Pit Mines

The fundament of the open pit geometry, both, on metallic and non-metallic mineral raw materials, consists of benches that allow mining operations to be carried out in the contour of the open pit mine. On lithium pit mines, formed benches of a certain height and slope angle, must ensure physical stability of the open mine pit and smooth running of mining work to excavate, load and transport the overburden and mineral resources out of the contour of the lithium open pit mine. The bench height and slope (bank) angle depend on the geotechnical situations, water impact and conditions of utilizing mining mechanization in digging, loading and transporting the overburden and mineral raw material.