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Mining Product: ARMPSHWM Analysis of Retreat Mining Pillar Stability Highwall Mining. ARMPSHWM is a modification of Analysis of Retreat Mining Pillar Stability (ARMPS) software for designing web and barrier pillars for Highwall Mining (HWM). ARMPSHWM calculates stability factors based on estimates of the loads applied to, and the loadbearing capacities of, web and barrier pillars
Preventing pillar line squeezes, massive pillar collapses, and coal pillar bumps is critical to the safe and efficient recovery of coal during retreat mining operations. To help prevent these problems, the US Bureau of mines has developed the Analysis of
Pillar recovery continues to be one of the most hazardous activities in underground mining. Global stability, achieved through proper pillar design, is a necessary prerequisite for safe pillar
The Analysis of Retreat Mining Pillar Stability (ARMPS) program was developed by the National Institute for Occupational Safety and Health (NIOSH) to help the United States coal mining industry to design safe retreat roomandpillar panels. ARMPS calculates the magnitude of the insitu and miningin
Jan 01, 2019#0183;#32;The analysis of retreat mining pillar stability (ARMPS) was developed as a first step towards addressing these retreat mining hazards. ARMPS employed the same abutment angle loading model as ALPS, but extended it to three dimensions [6].
The analysis of Retreat Mining Pillar Stability (ARMPS) computer program was developed in 1995 and has been widely accepted by the mining community. A Windows version of ARMPS is now available. It features simplified data input, graphics, and an expanded online quot;HELPquot; facility.
The Bureau of Mines has recently completed a comprehensive study of coal strength. More than 4000 individual test results from over 60 scams were extracted from the literature and combined in the most complete data base of the uniaxial compressive strength of coal ever assembled. In addition, more than 100 case studies of inmine pillar performance were available in the Analysis of Retreat Mining Pillar
Pillar design for roomandpillar retreat mining was pursued next. Before 1994, pillar recovery operations had been associated with about 25% of all roof fall fatalities underground; in addition, at
Jan 01, 2019#0183;#32;The quality of ROM coal will increase, and the cost will decrease proportionally to the amount of coal produced from the retreat operation. However, the retreat mining with partial or total pillar recovery implies greater subsidence. This is particularly true if
ANALYSIS OF RETREAT MINING PILLAR STABILITY (ARMPS) The most recent development in pillar design in the United States is the Analysis of Retreat Mining Pillar Stability (ARMPS). ARMPS was developed by the former Bureau of Mines [Mark and Chase 1997] based on extensive case history data. ARMPS is available as a Windows 95 software
Analysis of Retreat Mining Pillar Stability is abbreviated as ARMPS. CPU Central Processing Unit. API Application Programming Interface. ADTI Acid Drainage Technology Initiative. CFL CourantFriedrichsLewy. ALPS Analysis of Longwall Pillar Stability. GAS Global asymptotic stability.
Jan 01, 2020#0183;#32;Following the success of ALPS, the National Institute for Occupational Safety and Health (NIOSH) developed the Analysis of Retreat Mining Pillar Stability (ARMPS) program for designing retreat mining pillars using a similar approach as ALPS [2].
Analysis of Retreat Mining Pillar Stability. The design recommendations will now take into account the panel width as well as the depth of cover in determining acceptable pillar designs for retreat mining.
Prior to the advent of longwall mining another underground mining method, known as retreat mining or pillar removal mining, was sometimes used to extract a higher percentage of coal (60% to 70%) than could be produced by traditional roomandpillar mining.
Analysis of Retreat Mining Pillar Stability 2010
ARMPSHWM Analysis of Retreat Mining Pillar Stability Highwall Mining 8/20/2013 PC software A software program for designing web and barrier pillars for Highwall Mining.
Proper pillar design is essential for safe pillar recovery operations. Between 1989 and 1996, 25% of all roof and rib fatalities in the United States occurred on pillar recovery sections. The Analysis of Retreat Mining Pillar Stability (ARMPS) computer program was developed in 1995 and has been widely accepted by the mining community. A
Recently, Ghasemi et al. (2014a, b) developed two models for the evaluation and prediction of global stability in roomand pillar coal mines considering the retreat mining conditions by employing the logistic regression and the fuzzy logic techniques.
ARMPS (Analysis of Retreat Mining Pillar Stability) is software for designing pillars for roomandpillar retreat mining. ARMPS calculates stability factors based on estimates of the loads applied to, and the loadbearing capacities of, pillars during retreat mining operations. The program can model the significant features of most retreat mining layouts, including angled crosscuts, varied spacing between
Analysis of Retreat Mining Pillar Stability. The design recommendations will now take into account the panel width as well as the depth of cover in determining acceptable pillar designs for retreat mining.
May 20, 2014#0183;#32;Deep Cover Pillar Recovery in the US builds upon past NIOSH retreat mining research in the areas of pillar design, deep cover, and roof fall prevention. This study documented and added more than 200 retreat mining case histories to the Analysis of Retreat Mining Pillar Stability (ARMPS) data.
Jan 01, 2017#0183;#32;In order to study pillar and overburden response to retreat mining, a ground control program was conducted at a Central Appalachian Mine. The program consisted of several monitoring methods including a seismic monitoring system, borehole pressure cells in the pillars, and timelapse photogrammetry of the pillar ribs.
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