Study On Coal Mining Under Zhujiagou Village In Gaojipu Coal Mine

The ground buildings in one of the disk areas of Gaojiapu Coal Mine-Zhujiagou village have several features.The number of them is large,the structure diversity,and the scope of distribution is wide,which is severely influencing the continuous production of Gaojiapu Coal Mine,the coal mining has become a major problem to be solved urgently in this area.In view of the types of ground protection buildings and the conditions of coal seam occurrence in Gao Jiapu coal mine.In Gaojiapu Coal Mine,this paper studies the strip mining scheme of village under this condition.On the basis of the analysis of the geological and mining conditions of Gaojiapu Coal Mine,the type and structure characteristic of village buildings,production technology and equipment,this paper analyzes the applicability and feasibility of four kinds of ground building protection methods for reserve the protective coal pillar,cut and fill mining,relocation mining and strip mining.In the end,it is determined as strip mining that the coal pillar mining method in Zhujiagou village.According to the mining overlying strata structure and coal seam occurrence conditions,drawing on the observation results of surface movement in Bingchang mining area.Application of numerical simulation and theoretical calculation and analysis method,the strip mining parameters of Zhujiagou village are determined.Using numerical simulation method combined with probability integration method to simulate the strip mining scheme.The result shows that the surface movement deformation value of the village protection scope is less than the fo.rtification standard of the surface village buildings.The research results show that the determinate strip mining scheme can effectively improve the mining rate of coal resources and improve the technical and economic benefits of the mine under the premise of ensuring the safety of the surface buildings.lt provides the scientific basis for the "Under-Three-Objects" mining of Gaojiapu Coal Mine and Binchang mining area in the future.