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Mining Publication: Technology News 445 - Updated Analysis of Longwall Pillar Stability (ALPS) Computer Program Incorporates New Coal Mine Roof Rating (CMRR)
Keywords: Chain pillars CMRR Headgates Mine design Pillar design 
 Roof quality
This page is archived for historical purposes and is no longer being maintained or updated. Contact NIOSH Mining if you need an accessible version.
Original creation date: February 1995
Authors: Bureau of Mines
Technology News - February 1995
Download PDF Document (0.06 MB)
NIOSHTIC2 Number: 20035958
Pittsburgh, PA, U.S. Department of the Interior, Bureau of Mines, Technology News 445, 1995 Feb; :1-2
The objective of this work is to develop a comprehensive, practical method for designing longwall gate entries that considers coal pillar size, mine roof quality, and artificial support in an easy-to-use computer program.
Image of publication Technology News 445 - Updated Analysis of Longwall Pillar Stability (ALPS) Computer Program Incorporates New Coal Mine Roof Rating (CMRR)Technology News - February 1995
Download PDF Document (0.06 MB)
NIOSHTIC2 Number: 20035958
Pittsburgh, PA, U.S. Department of the Interior, Bureau of Mines, Technology News 445, 1995 Feb; :1-2
See Also
ALPS - Analysis of Longwall Pillar Stability - 5.4.02
Analysis and Design Considerations for Superimposed Longwall Gate Roads
CMRR - Coal Mine Roof Rating - 2.1.03
Design Methods to Control Violent Pillar Failures in Room-and-Pillar Mines
New Developments with the Coal Mine Roof Rating
Pillar Design Issues for Underground Stone Mines
Proceedings: New Technology for Ground Control in Retreat Mining
Roof Span Design for Underground Stone Mines
The State-of-the-Art in Coal Pillar Design
Technology News 505 - NIOSH Releases New Coal Mine Roof Rating Software
Technology News 516 - ARMPS-HWM: New Software for Sizing Pillars for Highwall Mining
Using the Coal Mine Roof Rating (CMRR) to Assess Roof Stability in U.S. Coal Mines
Page last reviewed: September 21, 2012
Page last updated: April 23, 2015
Content source: National Institute for Occupational Safety and Health, Mining Program
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