淮北矿区三软合并煤层大采高液压支架设计

Design and research on high cutting hydraulic powered support for seam with soft roof,soft coal and soft floor in Huaibei Mining Area

介绍淮北矿区三软合并煤层赋存条件开采工艺及液压支架选型,针对矿区煤层赋存特点,提出大采高一次采全高的开采方式,针对三软合并煤层的特性对大采高综采液压支架的支护强度、护帮机构、稳定性以及底板比压等问题进行了改进,在三软合并煤层上实现了大采高开采。

the paper introduced the mining technology and the hydraulic powered support applied to seam with soft roof,soft coal and soft floor in Huaibei Mining Area.According to the seam features of the mining area,the paper provided an one pass full seam mining method with high cutting height.According to the existing features of the "three soft" seam in the mining area,a study and improvement were conducted on the support strength,coal wall protected mechanism,stability,floor specific pressure and other key issues...