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Microseismic and Displacement Investigations in an Unstable Slope.

Stateham-RM; Vanderpool-JS

NTIS: PB 197 021 :22 pages

10000833

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.

19710101

IH; Report of Investigations

1971

PB-197021

A03

RI 7470

DRC;

NTIS: PB 197 021

NV;