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Field-scale void detection in coal piles using resistivity imaging.

Authors
Rodriguez-R; Rodriguez-H; Lhamond-M; Johnson-JC; Iverson-S
Source
NARMS-TAC 2002, "Mining and Tunnelling Innovation and Opportunity," Proceedings of the 5th American Rock Mechanics Symposium and the 17th Tunnelling Association of Canada Conference, July 7-10, 2002, Toronto, Ontario, Canada. Hammah R, Bawden W, Curran J, Telesnicki M, eds., Toronto, Ontario, Canada: University of Toronto Press, 2002 Jul; 1:415-419
Link
NIOSHTIC No.
20030439
Abstract
To reduce fatalities resulting from personnel falling into voids formed above feeders in coal piles, the National Institute for Occupational Safety and Health at the Spokane Research Laboratory established a project to monitor coal surge piles to detect the formation of voids. A resistivity imaging method has been developed by GECOH Exploration, of Lexington, KY, in which a geophysical technique known as vertical electrical sounding (VES) is used to scan for these voids. YES operates by measuring the electrical field produced by a current in the ground at the bottom of the coal pile. This paper summarizes the results obtained from a field-scale test and shows that mapping voids within a coal pile is possible.
Keywords
Mortality-data; Mortality-rates; Coal-workers; Coal-mining; Coal-miners; Coal-products
Publication Date
20020710
Document Type
Conference/Symposia Proceedings; Book or book chapter
Editors
Hammah-R; Bawden-W; Curran-J; Telesnicki-M
Fiscal Year
2002
NTIS Accession No.
NTIS Price
ISBN No.
0772767084
NIOSH Division
SRL
Source Name
NARMS-TAC 2002, "Mining and Tunnelling Innovation and Opportunity," Proceedings of the 5th American Rock Mechanics Symposium and the 17th Tunnelling Association of Canada Conference, July 7-10, 2002, Toronto, Ontario, Canada
State
WA; KY
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