：Comparison of closure measurements with finite element model results in an underground coal mine in central Utah论文

本文主要研究内容

作者（2019）在《Comparison of closure measurements with finite element model results in an underground coal mine in central Utah》一文中研究指出：Quantitative analysis of mine-wide subsidence at the kilometer scale and details of stress distribution about an advancing longwall face are estimated using an adaptation of the finite element method. The method is well suited to the tasks at hand. For greater realism, variability of strata properties is taken into account as are the effects of joints and cleats on elastic moduli and strengths. Evolution of pillar stress and entry closure remote from the face is readily quantified in a series of analyses that simulate face advance. Computed results compare favorably with the evolution of closure measurements about an instrumented pillar in a two-entry headgate. The appropriateness of the finite element method is confirmed. This method is based on first principles that avoid empirical schemes of uncertain applicability and numerical models ‘‘calibrated" by fitting computer output to mine measurements.

Abstract

Quantitative analysis of mine-wide subsidence at the kilometer scale and details of stress distribution about an advancing longwall face are estimated using an adaptation of the finite element method. The method is well suited to the tasks at hand. For greater realism, variability of strata properties is taken into account as are the effects of joints and cleats on elastic moduli and strengths. Evolution of pillar stress and entry closure remote from the face is readily quantified in a series of analyses that simulate face advance. Computed results compare favorably with the evolution of closure measurements about an instrumented pillar in a two-entry headgate. The appropriateness of the finite element method is confirmed. This method is based on first principles that avoid empirical schemes of uncertain applicability and numerical models ‘‘calibrated" by fitting computer output to mine measurements.

论文参考文献

论文详细介绍

论文作者分别是来自International Journal of Mining Science and Technology的，发表于刊物International Journal of Mining Science and Technology2019年01期论文，是一篇关于,International Journal of Mining Science and Technology2019年01期论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自International Journal of Mining Science and Technology2019年01期论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。

标签：International Journal of Mining Science and Technology2019年01期论文;