Development regularities and forecast of the middle and small scale geologic structure in Xiangshan coal mine

On the basis of reorganization statistics and mapping analysis of geological structure data from exploration,mine building and mining,the author has systematically summarized the development features,combination and distribution regularities of geological structures in mined area,and carried out forecast of geological structures in unmined area in Xiangshan coal mine.The results indicated that faults were very developed in coal seams,great number of middle and small scale faults had evident directivity in main mined seam,the extension direction of faults was mainly NW,secondly nearly EW,NE and SN.The development of faults had evident zonation.Geological structures in seam 3 have been divided into 4 structure belt groups and 16 structure belts.In these structure belts,coal seams were complex structurally,which has serious impact on safe mining,while between these belts coal seam was relatively simple in structure.