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Mining Product: ALPS - Analysis of Longwall Pillar Stability
Keywords: Chain pillars Loading Mine design Pillar design
Original creation date: January 1990
Authors: C Mark
Software (Windows) - August 2013
Version: 5.4.02
Download (7.16 MB)
Pittsburgh, PA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 2013 Aug
ALPS (Analysis of Longwall Pillar Stability) is software for designing pillars for longwall mines.
The ALPS method, which is embodied in the program, consists of three basic steps:
Estimating the loading that will be applied to the pillars during all the phases of longwall mining
Estimating the load-bearing capacity of the longwall pillar system, and
Calculating "stability factors" (SF) by comparing the load to the load-bearing capacitySince its development, the ALPS method has been verified by back-analysis of more than 100 actual mining case histories. This version of the software includes the Mark-Bieniawski pillar strength formula, which more accurately represent the strength of rectangular pillars, and more flexibility in longwall layout by allowing angled crosscuts and varied crosscut spacing.
**Release notes for version 5.4.02 (August 2013):**
Minor bug fixes
Fixed operating system compatibility issues
User interface improvements
**Release notes for version 5.4.01 (October 2012)**:
Recompiled with new libraries
16/32 bit controls have been replaced with 32/64 bit controls
User interface improvements
Program installer has been updated with more options and better checks for older installations
Various bug fixes
Tested for better functioning under Windows 7.
Audience: Mine operators
Software (Windows) - August 2013
Version: 5.4.02
Download (7.16 MB)
Pittsburgh, PA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 2013 Aug
See Also
AMSS - Analysis of Multiple Seam Stability - 2.1.02
ARMPS - Analysis of Retreat Mining Pillar Stability - 6.2.02
Coal Mine Bumps: Five Case Studies in the Eastern United States
Design Methods to Control Violent Pillar Failures in Room-and-Pillar Mines
Ground Control Overview
Ground Control Research: Considering Local Geology to Improve Longwall Pillar Stability
Ground Control Software Toolbar - 1.1.02
Pillar Design
Pillar Design Issues for Underground Stone Mines
Proceedings: New Technology for Ground Control in Retreat Mining
The State-of-the-Art in Coal Pillar Design
Technology News 445 - Updated Analysis of Longwall Pillar Stability (ALPS) Computer Program Incorporates New Coal Mine Roof Rating (CMRR)
Technology News 516 - ARMPS-HWM: New Software for Sizing Pillars for Highwall Mining
Toward Pillar Design To Prevent Collapse of Room-and-Pillar Mines
Using the Coal Mine Roof Rating (CMRR) to Assess Roof Stability in U.S. Coal Mines
Page last reviewed: October 22, 2016
Page last updated: October 30, 2013
Content source: National Institute for Occupational Safety and Health, Mining Program
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