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Roof drill - new source of low-cost roof strata information.

Authors
Frizzell-EM; Howie-WL; Briggs-RC
Source
Rock Mechanics: Contributions and Challenges: Proceedings of the 31st U.S. Symposium, June 18-20, 1990, Colorado School of Mines, Golden, Colorado. Hustrulid WA, Johnson GA, eds., Brookfield, VT: A.A. Balkema, 1990 Jan; :505-510
Link
NIOSHTIC No.
10008192
Abstract
An ongoing research program at the Spokane Research Center of the U.S. Bureau of Mines is directed toward investigating drilling parameters (thrust, torque, penetration rate, and drill revolutions) during the drilling of roof bolt holes. A system that measures these drilling parameters, calculates the specific energy of drilling, and determines drill bit position has been developed by the Bureau and mounted on a roof drill. Through the use of a microcomputer, critical drilling parameters can be immediately interpreted and analyzed. This makes it possible to inform the operator of hazardous roof conditions. Initial results of this program are presented here.
Keywords
Mining-equipment; Machine-operation; Machine-tools; Measurement-equipment; Computer-models; Computers; Computer-software; Analytical-instruments; Analytical-processes; Machine-operators; Rock-mechanics; Hazards; Information-processing; Information-systems
Publication Date
19900101
Document Type
OP; Conference/Symposia Proceedings
Editors
Hustrulid-WA; Johnson-GA
Fiscal Year
1990
NTIS Accession No.
NTIS Price
ISBN No.
9789061911234
Identifying No.
OP-150-90
NIOSH Division
SRC; WO
Source Name
Rock Mechanics: Contributions and Challenges: Proceedings of the 31st U.S. Symposium, June 18-20, 1990, Colorado School of Mines, Golden, Colorado
State
WA; CO; DC
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