论文部分内容阅读
峰峰矿务局牛儿庄矿位于太行山脉九山东麓,峰峰煤田北部。全井田近似菱形,走向长平均3km,倾斜长平均2.6km,面积7.8km~2。井田分南北两翼,南翼构造简单,煤层倾角10～25°,北翼地质构造复杂、断层多、顶板破碎,仅一个工作面就有几条至十几条大小不等落差2～10m的断层,个别工作面甚至有1m以上的断层多达17条,倾斜角30～60°。在这种情况下,我矿仍然采用分层走向长壁式布置工作面,放炮落煤,搪瓷溜槽自重运输,全部陷落法、金属支柱配合金属绞接顶梁支护顶板,安全地采完了大煤5个工作面和薄煤4个工作面,采出煤量89.7万
Feng Feng Mine Bureau Zhuang Zhuang mine is located in the Taihang Mountains Jiu Shan Dong Lu, north of Feng Minefield. The whole minefield is approximately diamond-shaped, with an average length of 3km and an average tilt length of 2.6km and an area of 7.8km ~ 2. The field is divided into north and south wings and the south wing is simple in structure with coal seam dip angle of 10-25 degrees. The north wing has complex geological structure with many faults and the roof is broken. There are several faults ranging from 10m to 10m in size in only one working surface There are even 17 fault lines with even more than 1m of working face on each working face with a tilt angle of 30-60 °. In this case, the mine still adopts the layered approach to the long-wall layout of the working face, shooting off the coal, discharging the weight by an enamel chute, and all the falling methods. The metal pillar cooperates with the metal hinged roof beam support roof to safely collect large Coal 5 face and thin coal 4 face, mining of 89.7 million tons of coal