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Deep cut-ground control and worker safety in coal mines.

Authors
Bauer-ER; Bise-CJ
Source
1999 SME Annual Meeting, March 1-3, 1999, Denver, Colorado, Preprint 99-109. Littleton, CO: Society for Mining, Metallurgy, and Exploration, 1999 Mar; :1-7
Link
NIOSHTIC No.
20027591
Abstract
The trend in underground room-and-pillar mining is to employ remote control continuous mining machines and extended cuts, 12 m (40 Ft) deep or more. This system of coal extraction, adopted by over 435 mines, can create additional worker-safety hazards. To address the ground control and worker-positioning hazards, a combination of statistical analyses and numerical modeling was conducted. Initially, the reported roof-fall incidents and fatalities were reviewed to delineate the ground-control hazards. Then, the application of the Coal Mine Roof Rating (CMRR) for estimating safe extended-cut depths was evaluated. Finally, computer modeling to predict roof displacements during extended-cut mining was completed. The paper describes the results of these studies and their impact on the safety of extended-cut mining.
Keywords
Mining-industry; Underground-mining; Room-and-pillar-mining; Ground-control; Ground-stability; Statistical-analysis; Accident-analysis; Accident-prevention; Accident-statistics; Injury-prevention; Longwall-mining; Extended-cut-mining
Publication Date
19990301
Document Type
Conference/Symposia Proceedings
Fiscal Year
1999
NTIS Accession No.
NTIS Price
NIOSH Division
PRL
Source Name
1999 SME Annual Meeting, March 1-3, 1999, Denver, Colorado, Preprint 99-109
State
PA; CO
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