“两硬”大采高综放工作面煤壁片帮机理及控制研究

摘要

Taking the 8916 working face as an example, mastered the forms of the coal wall spalling in full-mechanized caving mining face with large mining height in hard roof and hard coal seam,and analyzed its spalling mechanism. Combined with the practice of 8916 working face, given the inlfuence factors of spalling full-mechanized caving mining face with large mining height in hard roof and hard coal seam,and gave the preventive measures.%以8916工作面为例，通过现场统计掌握了“两硬”煤层大采高综放工作面煤壁片帮主要形式，并对片帮机理进行了理论分析。结合8916工作面实际，分析了影响“两硬”煤层大采高综放工作面煤壁片帮的主要因素，并给出了预防性措施。