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Tilt Precursors in Rock Before Failure: A Laboratory Investigation.

Authors
Brady-BT
Source
NTIS: PB 250 565 :9 pages
Link
NIOSHTIC No.
10000886
Abstract
Laboratory measurements by the Bureau of Mines indicate that failure in dry rock specimens measuring approximately 13 cm in length is preceded by tilt anomalies lasting a few milliseconds. The tilt behavior is qualitatively similar to that reported to precede earthquakes. Test results suggest that the time duration of this tilt anomaly for laboratory specimens of this length is independent of rock type, in agreement with theoretical predictions and other experimental data on rock failures including earthquakes.
Publication Date
19750101
Document Type
IH; Report of Investigations
Fiscal Year
1975
NTIS Accession No.
PB-250565
NTIS Price
A02
Identifying No.
RI 8101
Source Name
NTIS: PB 250 565
Page last reviewed: May 5, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division