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Design Parameters of Roof Support Systems for Pre-Driven Longwall Recovery Rooms
Reduction in the recovery time required and improvements in safety during a longwall face move have compelled coal mine operators to examine and use predriven longwall recovery rooms. The recovery entry is developed at the longwall stop position and supported... Read more
Reducing the Risk of Ground Falls During Pillar Recovery
Pillar recovery has been associated with nearly onethird of roof fall fatalities in underground coal mines during the past decade. Safe pillar recovery requires global stability and local stability. Global stability is addressed primarily through pillar design. The local stability... Read more
Evaluation of Pillar Recovery in Southern West Virginia
Pillar recovery continues to be a significant ground control hazard. During the past decade, 10 miners were killed during pillar extraction operations in southern West Virginia. Studies conducted during the past decade have identified a number of Risk Factors that... Read more
Obstacles to Recovery from Musculoskeletal Disorders in Industry
UK workforce survey and a controlled trial of an occupational guidelines-based intervention protocol for workers with musculoskeletal disorders, focusing on obstacles to covery/return-to-work. Results confirmed a general association between psychosocial work environment and musculoskeletal disorders. ... Read more
MDG 1029 Guidelines for Agency Coordination During Body Recovery at NSW Mines
This document aims to develop guidelines to help co-ordinate inter-agency activities in the event of a mining related death. ... Read more
Trapped/Crushed By Rib Coal Beside Continuous Miner
What While operating the right-hand roof bolter rig on a continuous miner the operator was trapped and crushed by a large piece of fallen rib coal. Why This incident occurred because recovery personnel were poorly equipped to deal with this situation - a... Read more
Fall of Face or Rib Accidents - Emery County, Utah
What A major coal bump/bounce occurred, trapping six miners. All four entries were rendered impassable approximately 2,000 feet outby the section. Underground rescue/recovery efforts were suspended on August 16, 2007, when a bump/bounce fatally injured three rescue workers. Air samples collected... Read more
Report of Investigation - Fatal Underground Coal Burst Accidents - Emery County, Utah
What A major coal bump/bounce occurred, trapping six miners. All four entries were rendered impassable approximately 2,000 feet outby the section. Underground rescue/recovery efforts were suspended on August 16, 2007, when a bump/bounce fatally injured three rescue workers. Air samples collected... Read more
SHEC Corporate Management System Standard - Emergency Preparedness and Response
This Standard forms a part of Element 5 (Risk Management) of the Anglo Coal Australia Pty Ltd (ACApl) SHEC Management System. The purpose of this Standard is to: Ensure appropriate senior corporate officials are notified of an emergency situation involving... Read more
Major Hazard Audit Protocol: Remote Areas
This document is designed to allow an auditor to assess the compliance of a WMC site with Remote Areas Standard SAF-MHS-17. There are six areas addressed by the audit document: Systems; Risk management system; Planned recovery system in the event... Read more
Major Hazard Contractor Worksheet: Remote Areas
This document is designed to assist any person responsible for scoping a Contract to define what is required of a potential contractor to enable them to comploy with the WMC Remote Areas Standard SAF-MHS-17. This document is applicable to all... Read more
Burty-Weise Bar
Problem Several problems arose when fixing the wire starter rope on the Heusker Mesh to the roof in front of the support canopies, using hand held roof bolters and 4 foot roof bolts: Means of temporary support of mesh to roof... Read more
ZERO EMMISSION VEHICLE FOR MINES RESCUE AND GENERAL UNDERGROUND USE
Problem Most people associate mine rescue with saving lives. Although saving lives is the most important part of mine rescue work; there is more work involved. A more complete definition of mine rescue is: The practiced response to a mine emergency... Read more
Analysis and Design Considerations for Superimposed Longwall Gate Roads
A U.S. Bureau of Mines investigation of longwall panel layouts to maximize coal recovery and minimize interactive problems in multiple-seam operation ... Read more
Deep Cover Pillar Extraction in the U.S. Coalfields
Deep cover retreat mining (overburden in excess of 750 ft) is an important emerging issue which will intensify in the future as the more easily mined shallow seam reserves are depleted. Analysis of Mine Safety and Health Administration (MSHA) statistics... Read more
(Underground Coal Mine) Fatal Fall of Roof Accident Island Fork Construction, Ltd. (PUL) Beckley, Raleigh County, West Virginia at Rader
What A 53-year old roof bolting machine operator was fatally injured when he was struck by rock from an unintentional roof fall. The victim was helping the operator of the continuous miner tram the machine. The roof in the intersection fell... Read more
HARMONY GOLD MINING COMPANY LTD. ; HARMONY 2 SHAFT
Harmony 2 Shaft is part of the Harmony Free State Operations and is situated approximately 5 kilometres to the North of the mining town of Virginia in the Free State Province. What A series of seismic events, measuring 2,0, 0,4,and 0,7,... Read more
Rock Mechanics Study of Shaft Stability and Pillar Mining, Homestake Mine, Lead, SD
A U.S. Bureau of Mines case study of pillar recovery in high-grade ore near the Ross shaft at the Homestake Mine, Lead, SD, has demonstrated the usefulness of the finite-element method for evaluating shaft pillar mining plans and shaft stability.... Read more
SIZING OF FINAL STUMPS FOR SAFER PILLAR EXTRACTION
Pillar recovery continues to be one of the more hazardous activities in underground coal mining. Safety requires that the roof above the intersection remain stable until after the pillar has been extracted. Artificial supports (timbers and Mobile Roof Supports) are... Read more
Cold Stress
During emergency response activities or recovery operations, workers may be required to work in cold environments, sometimes for extended periods. Cold stress is a common problem encountered in these types of situations. To help workers understand what cold stress is,... Read more
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