(Received 19 October 1999; accepted 13 November 2000)
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A measuring device for axial and radial displacements in triaxial tests on soft rock specimens is described. Developed to optimize the detection of strain localization, the transducers have a linear response and a working range of a few percent. After a presentation of the manufacture and properties, detection of strain localization in the specimen during the compression test is discussed.
Ag. Pr. (half teaching and half research) at Laboratoire de Géologie, Ecole Normale Supérieure, Paris Cedex 05,
Professor, Laboratoire, Grenoble,
Stock #: GTJ11339J