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Acoustic Emission Techniques Applied to Slope Stability Problems.

Authors
Stateham-RM; Merrill-RH
Source
Ch 16 in Development in Geotech Eng 1979 2(14B):577-593
Link
NIOSHTIC No.
10000947
Abstract
Techniques and instruments used to detect instability in rock masses around underground mines have been refined and applied to the detection of instability in rock slopes. From the number and magnitude of the acoustic emissions in the rock mass, engineering estimates of slope instability can be made. The electronic apparatus has advanced from early tube-type circuitry to solid-state circuitry capable of amplifying the output of accelerometers, velocity gages, and pressure gages used to detect acoustic emissions (rock noises). Some of the techniques, instruments, and results at four open pit mines are described. The results of these studies show that the techniques can be used to predict failure, monitor the progress of the failure, and provide evidence that earthquakes can affect the stability of a pit wall.
Publication Date
19790101
Document Type
OP;
Fiscal Year
1979
NTIS Accession No.
NTIS Price
Identifying No.
OP 6-80
Issue of Publication
14B
NIOSH Division
DRC;
Source Name
Ch. 16 in Development in Geotech. Eng., V. 2, No. 14B, 1979, PP. 577- 593
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