首页> 外文会议>International Conference on Ground Control in Mining >Numerical Analysis of Some Geotechnical Factors Influencing the Application of Longwall Top Coal Caving
【24h】

Numerical Analysis of Some Geotechnical Factors Influencing the Application of Longwall Top Coal Caving

机译:影响长墙体顶煤塌陷的岩土内因素的数值分析

获取原文

摘要

This paper describes the numerical analysis of some geotechnical factors influencing the application of Longwall Top Coal Caving (LTCC) method. The study was aimed at comparing the differences in stress distribution in the chain pillars of the face ends and caving mechanism of the top coal in LTCC method between the flat and inclined thick coal seams. The outcomes from this analysis will benefit mine planners in designing the location of roadway development in the next longwall panel. In addition, results from the study will extend the understanding of caving mechanism in top coal section when applying the LTCC method (with the direction of the longwall face is down dip, retreating along strike) in inclined coal seams. The results demonstrate a clear effect of dipping factor on cavability of the top coal and on the stress distribution in the chain pillar of the face ends.
机译:本文介绍了影响长墙体顶煤(LTCC)法应用的岩土内因素的数值分析。该研究旨在比较平坦和倾斜厚煤层之间LTCC方法的面部端部的链柱和顶部煤的链柱中应力分布的差异。该分析的结果将使矿山规划人员设计在下一个长墙板中的道路发展位置。此外,当施加LTCC方法时,研究的结果将延长对顶煤部分中的腔内机构的理解(随着长壁面的方向下降,沿着击退沿击退)。结果表明,浸渍因子对顶部煤的空穴性以及面部链柱中的应力分布的明显效果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号