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Relative stress conditions in an underground pillar, Homestake Mine, Lead, SD.

Authors
Scott-DF; Williams-TJ; Freidel-MJ; Denton-DK
Source
Proceedings of the 36th U.S. Rock Mechanics Symposium, New York: Columbia University; :278
Link
NIOSHTIC No.
20025147
Abstract
One of the basic problems in hard-rock mining associated with deep (>2000 m) underground deposits is high stress, which frequently results in failure, both gradual and violent, of the rock mass. Violent failure of rock in areas where miners are present is a severe safety hazard. Personnel from the Spokane Research center, a division of the National Institute for Occupational Safety and Health (NIOSH), have been investigating the use of three-dimensional seismic tomography to detect hazardous ground conditions and monitor the mechanical integrity of a rock mass. This technique was used to determine relative stress in an underground pillar on the 7400 level (about 2256 m below the surface) of the Homestake Mine, Lead, South Dakota.
Keywords
Underground-mining; Mining-industry; Ground-control; Ground-stability; Geology; Rock-mechanics
Publication Date
19970101
Document Type
Conference/Symposia Proceedings
Fiscal Year
1997
NTIS Accession No.
NTIS Price
NIOSH Division
SRL
Source Name
Proceedings of the 36th U.S. Rock Mechanics Symposium, New York, NY
State
SD; WA; NY
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