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

Authors
Bauer-ER; Bise-CJ
Source
Min Eng 2000 Jun; 52(6):110-116
NIOSHTIC No.
20032634
Abstract
The trend in underground room-and-pillar coal mining is to employ remote-controlled, continuous-mining machines and extended cuts to depths of 12 m (40 ft) or more. This system of coal extraction, adopted by more than 435 mines, can create additional worker safety hazards. To address the ground-control-related safety hazards, a combination of statistical analysis and numerical modeling was used. 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 was completed to predict roof displacements during extended-cut mining. This paper describes the results of these studies and their impacts 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
CODEN
MIENAB
Publication Date
20000601
Document Type
Journal Article
Fiscal Year
2000
NTIS Accession No.
NTIS Price
Issue of Publication
6
ISSN
0026-5187
NIOSH Division
PRL
Source Name
Mining Engineering
State
PA
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