Results 1 - 5 of 5

• Experimental Study on the Confinement-Dependent Characteristics of a Utah Coal Considering the Anisotropy by Cleats
  5/1/2018 - Peer reviewed journal articles
  A study in which laboratory testing was used to identify the engineering characteristics and brittleness of coal samples.
• Assessment of Stable and Failed Pillars in Underground Limestone Mines
  11/1/2008 - Peer reviewed journal articles
  This paper provides an assessment of the performance of limestone pillars as observed at 98 different locations in 34 mines in the Eastern and Midwestern regions of the United States.
• Field Observations and Numerical Studies of Horizontal Stress Effects on Roof Stability in U.S. Limestone Mines
  6/1/2008 - Peer reviewed journal articles
  This paper describes a modeling approach that can be used as a tool to evaluate potential roof failure and optimize the stability of room and pillar layouts.
• Evaluation of the Strength of Slender Pillars
  1/1/2007 - Peer reviewed journal articles
  Some of the issues affecting pillar strength at low width-to-height ratios in hard, brittle rock are investigated. The results showed that the strength of slender pillars is more variable than that of wider pillars.
• Analysis of Pillar Design Practices and Techniques for U.S. Limestone Mines
  12/1/1999 - Peer reviewed journal articles
  As underground stone mining expands to deeper cover and more efficient methods are used, effective stone pillar design methods become more important. In this paper, 72 stone mine pillar designs are examined for factors affecting stability.