开采区段高度对急倾斜煤层开采的影响分析  

Analysis of Influence of Mining Section Height on Steep Seam Mining

作　　者：赵丹 Zhao Dan(Shanxi Lu'an Guozhuang Coal Industry Co.,Ltd.,Changzhi Shanxi 046100)

机构地区：[1]山西潞安郭庄煤业有限责任公司,山西长治046100

出　　处：《山西冶金》2021年第4期137-138,144,共3页Shanxi Metallurgy

摘　　要：急倾斜煤层由于煤炭赋存条件较差,导致开采难度增大。采用巷道放顶煤开采是较为广泛应用的开采方式。由于巷道放顶煤开采的工艺研究较少,难以进行精细化的开采。针对开采区段高度的影响作用,采用FLAC 3D模拟仿真的方式,确定开采区段高度对煤层破坏及应力分布的影响,从而确定最优化的开采区段高度,为精细化采煤作业提高参考。It is more difficult to mine steep coal seam because of the poor coal occurrence conditions.Roadway top coal caving mining is a widely used mining method.Due to the lack of technology research of roadway top coal caving mining,it is difficult to carry out fine mining.According to the influence of mining section height,FLAC 3D simulation method is used to determine the influence of mining section height on coal seam damage and stress distribution,so as to determine the optimal mining section height,which can provide reference for fine coal mining operation.

关 键 词：急倾斜煤层 巷道放顶煤开采 开采区段高度 顶煤回收 

分 类 号：TD823.213[矿业工程—煤矿开采]