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Microseismic and Displacement Investigations in an Unstable Slope.
NTIS: PB 197 021 :22 pages
Microseismic noise rates and slope movements were measured in an unstable area along the north wall of the Tripp-Veteran Pit, Kennecott Copper Corp., Ruth, Nevada. Low-noise, wide-band microseismic geophones were located at various points in the wall, and the change in distance across open fractures, resulting from instability, was determined by repeated measurements between fixed points set on each side of the fractures. The microseismic noise rate increased and decreased with corresponding increases and decreases in the rate at which the fractures opened. The microseismic noise rates and changes in width of the fractures show excellent agreement, and the two types of measurements complement each other in monitoring the progress of pit wall failure.
IH; Report of Investigations
NTIS Accession No.
NTIS: PB 197 021
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division