Abstract
A slow failure process of Rothbach sandstone and schist from Beringen in Belgium was examined, with particular attention to fault plane localization. The samples of rock were tested under uniaxial compressive stress. Acoustic emission and strain were measured during loading. The data obtained show that the localization threshold of fault plane occurred at stress levels with substantial variability relative to the ultimate strength, depending on the degree of dilatancy and homogeneity of rock under test.References
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[3] R. HOUPERT, Le role du temps dans le comportement à la rupture des roches, C.R. 3 Congr. Internat. Mec. Roches, Denver, 2 et A, 1974, p. 325-329.
[4] Ph. SALA, Etude experimentale de la fissuration et de la rupture des roches par émission acoustique. Application à l'étude de la sismogenese, Thèse Dr Ing, Université de Grenoble 1982, p. 166.
