FEATURES AND MINING GEOLOGY SIGNIFICANCES OF THE COAL SEAM SLIP FOLD STRUCTURE IN XU-HUAI DISTRICT

来源 :Journal of Coal Science & Engineering(China) | 被引量 : 0次 | 上传用户:calidaw
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In the analysis of some in-seam slip fold structures in the area of Xuzhou and Huaibei Districta it is noted that there exist some in-seam roof and footwall rock layers extremely incompatible to the existence of coal seams. Some of them are tbe slip fold structures that are wedged into coal seam by folding, but all of them are passively generated by in-seam shearing forces. In this paper, a discussion is put forward of the damage to coal seams by slip folds and the coal mining significance resulted from the study of slip fold structures. In the analysis of some in-seam slip fold structures in the area Xuzhou and Huaibei Districta it is noted that there exist some in-seam roof and footwall rock layers extremely incompatible to the existence of coal seams. Some of them are tbe slip links structures that are wedged into coal seam by folding, but all of them are passively generated by in-seam shearing forces. In this paper, a discussion is put forward of the damage to coal seams by slip folds and the coal mining critical = from the the study of slip fold structures.
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