Optimization Design for Mining Technology in Huoerxinhe Coal Mine

According to the geological conditions and coal seam occurrence characteristics of Huoerxinhe Coal Mine, the paper analyzes that using once mining full-thickness mechanized mining with large mining height is a kind of coal mining technology with growing potential, which can increase economies of scale under such coal geological conditions. Through engineering analogy under the similar conditions and establishing FLAC^3D mode to process the numerical simulation, the paper demonstrates the feasibility of using fully-mechanized mining with large mining height in No. 3 coal seam of Huoerxinhe Coal Mine, carries out the optimization design for original mining technology, and achieves fully-mechanized mining with large mining height, which maximally improves the recovery rate of mine resources, and sufficiently utilizes current mining equipments, maximizes economic benefits of the mine.