Development of an efficient and safe technology for extracting horizontal and flat contiguous beds

Abstract Mine fields are very often represented by parallel contiguous horizontal, flat beds or complex-structured deposits of minerals with inclusions of waste rocks of various thickness. The work aims to develop a new technology and parameters for extracting horizontal and flat contiguous beds with efficient control of the surrounding rock state and reducing the cost of waste rock disposal during secondary development. The scientific novelty lies in developing an efficient and safe innovative technology for mining horizontal and flat contiguous beds of minerals. New dependencies of volumes of waste rock disposal on secondary development in artificial pillars-supports are established. The practical significance consists in expanding the scope of employment of the flowsheet for mining horizontal and flat contiguous beds including complex-structured deposits, increasing efficiency and safety of their extraction by creating a corrugated spatial structure to maintain the stable state of the surrounding rocks and the mining system elements. Implementation of the proposed technology enables reduction of the cost of extracting minerals from parallel horizontal and flat beds.