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Results 11 - 20 of 52
Experimental Study on the Confinement-Dependent Characteristics of a Utah Coal Considering the Anisotropy by Cleats5/1/2018 - Peer reviewed journal articlesA study in which laboratory testing was used to identify the engineering characteristics and brittleness of coal samples.
3/30/2017 - Research projectsA project to build the framework for expanding pillar design criteria into challenging environments by undertaking pillar response investigations in representative conditions at case study mine sites.
10/22/2016 - News articlesA short feature story describing NIOSH products on retreat mining.
10/22/2016 - Research projectsA project to update the database of case histories upon which the Analysis of Longwall Pillar Stability (ALPS) software bases its recommended stability factors.
9/28/2012 - News articlesNIOSH's OMSHR is starting a new project to produce guidance and tools to improve management of rib fall hazards.
7/1/2009 - Conference papersThis study extends the method of dynamic analysis to events driven by slip on geologic features.
7/1/2009 - Conference papersThis paper provides an overview of current deep cover pillar recovery practice.
11/1/2008 - Peer reviewed journal articlesThis 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.
7/1/2008 - Conference papersThis paper examines catastrophic failures of evaporite mines (including salt, potash and trona) that show that violent failure does, in fact, occur and attempts to identify common factors and characterize the mechanism of failure.
Field Observations and Numerical Studies of Horizontal Stress Effects on Roof Stability in U.S. Limestone Mines6/1/2008 - Peer reviewed journal articlesThis 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.