摘要
为了研究工作面区段煤柱尺寸留设的合理问题,以塔山煤矿5号煤层为例,运用FLAC^(3D)软件模拟不同情况下煤柱围岩的应力大小及塑性破坏情况。对比分析了模拟结果,并与理论计算结果相比较,确定塔山煤矿5号煤层的合理煤柱尺寸为20~30 m。
In order to study the rational size of coal pillars in the working face section, a case study of No.5 coal seam in Tashan Coal Mine is performed and FLAC3D software is used to simulate the stress and plastic damage of coal pillars in different width sections. The simulation results are compared with the theoretical results, and the reasonable size of the coal pillar in No.5 coal seam in Tashan Coal Mine is 20-30 meters.
出处
《江西煤炭科技》
2017年第2期5-7,共3页
Jiangxi Coal Science & Technology
关键词
区段煤柱
合理尺寸
研究
section coal pillar
numerical simulation
reasonable size
elastic core
