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Automated monitoring and geotechnical evaluation for ground control in longwall mining.

Authors
McDonnell-JP; Cox-RM; Dunford-JP
Source
New Technology for Longwall Ground Control. Proceedings: U.S. Bureau of Mines Technology Transfer Seminar. Pittsburgh, PA: U.S. Bureau of Mines, 1994 Aug; :131-145
Link
NIOSHTIC No.
20024715
Abstract
The U.S. Bureau of Mines (USBM), utilizing commercially available monitoring system technology, is developing computer-assisted processing and analysis techniques for near real-time evaluation of underground coal mine ground conditions. The combination of existing mine monitoring system and sensor technology with automated computer analysis techniques enhances the acquisition, analysis, and display of geostructural data from high-production longwall mining operations. Underground monitoring system instrumentation networks have been installed at three longwall operations (one in western Colorado and two in central Utah) to collect ground control information to aid in evaluating ground conditions along high-production longwall faces and surrounding gate road entries. The data typically consist of pillar, panel, and shield pressure changes, and strata movements. Samples of monitoring system results rpesented in this paper, which combine mine structure data with other information, such as geologic conditions, have provided near real-time information on stress transfer, mine structure pressure buildup, and strata movement associated with several ground control events. The monitoring system network provides the mine operator with information to rapidly identify and manage potentially hazardous ground conditions while mining is in progress.
Keywords
Longwall-mining; Mining-industry; Ground-control; Ground-stability; Geology; Computer-software; Computer-models
Publication Date
19940801
Document Type
Book or book chapter
Editors
Mark-C; Tuchman-RJ; Repsher-RC; Simon-CL
Fiscal Year
1994
NTIS Accession No.
NTIS Price
NIOSH Division
PRC
Source Name
New Technology for Longwall Ground Control. Proceedings: U.S. Bureau of Mines Technology Transfer Seminar. Pittsburgh, PA: U.S. Bureau of Mines
State
PA; CO
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