大安山矿煤柱对下部煤层开采影响  

Numerical simulation on the effects of coal pillar on mining of the lower coal seams in Da Anshan mine

作　　者：李忠华[1] 朱丽媛[1] 唐治[1] 刘瀚琦 

机构地区：[1]辽宁工程技术大学力学与工程学院,辽宁阜新123000 [2]抚顺矿业集团老虎台矿,辽宁抚顺113000

出　　处：《辽宁工程技术大学学报（自然科学版）》2014年第6期741-744,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：国家重点基础研究发展计划(973)基金资助项目(2010CB226803);国家自然科学基金资助项目(51174107)

摘　　要：为安全开采大安山煤矿＋550 m水平轴13槽煤层.利用ANSYS有限元软件,对大安山煤矿＋550 m水平轴13槽煤层开采情况进行模拟,建立了二维有限元模型,分析了13槽煤层开采时,上部的14槽煤层开采后遗留的煤柱对其开采的影响.模拟结果表明：煤柱对下煤层的开采有较大的影响,其中煤柱左侧对下煤层开采的影响范围为45~55 m,煤柱左侧对下煤层开采的影响大于煤柱右侧.结合模拟结果和地质情况预测不同地区的冲击地压危险情况并提出相应防治措施,该研究为煤层开采设计提供理论指导.To mine the ＋ 550 m Horizontal Axis 13 slot seam safely in Da Anshan Mine, this paper simulated the mining process using ANSYS finite element software, established a 2D finite element model according to the geological conditions, and analyzed the influence of the coal pillar which left after the mining of the upper 14 slot seam on 13 slot seam when mined. The simulation results show that coal pillar has a larger influence on mining of under coal seam. The influence range of the left side is 45~55 m and the influence of the left side is greater than the right side. Rock burst dangerous situation of different regions are forecasted combined with the simulation results and geological condition. At the same time,corresponding prevention measures are put forward. The research provides theoretical guidance for design of coal seam mining.

关 键 词：煤层开采 煤柱 ANSYS 数值模拟 冲击地压 

分 类 号：TD713.1[矿业工程—矿井通风与安全]