Laboratory measurement of the shear strength of ice-filled rock joints

Laboratory measurement of the shear strength of ice-filled rock joints

To assess the safety against failure of rock slopes in cold regions, such as high mountain areas, where stability is potentially maintained by ice in rock discontinuities, the shear strength of ice-filled rock joints was investigated in a series of direct shear-box tests. To permit control and repea...

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Veröffentlicht in:Annals of glaciology 2000, Vol.31, p.463-467
Hauptverfasser: Davies, Michael C. R., Hamza, Omar, Lumsden, Bruce W., Harris, Charles
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container_title Annals of glaciology
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creator Davies, Michael C. R.
Hamza, Omar
Lumsden, Bruce W.
Harris, Charles
description To assess the safety against failure of rock slopes in cold regions, such as high mountain areas, where stability is potentially maintained by ice in rock discontinuities, the shear strength of ice-filled rock joints was investigated in a series of direct shear-box tests. To permit control and repeatability, the experiments were conducted using simulated rock specimens. These were cast in the laboratory using high-strength concrete. Laboratory measurements showed that at a constant rate of shearing, the interface shear strength between ice and a joint surface of repeatable roughness is a function of both temperature and normal stress.
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title Laboratory measurement of the shear strength of ice-filled rock joints
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