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www.nonlin-processes-geophys.net/13/671/2006/
doi:10.5194/npg-13-671-2006
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Thin layer shearing of a highly plastic clay
1Institut für Bodenmechanik und Felsmechanik, Universität Karlsruhe, Germany
2Bauer Spezialtiefbau GmbH, Schrobenhausen, Germany
3Ed. Züblin AG, Stuttgart, Germany
Abstract. Shearing tests with a thin layer of clay between filter slabs render possible large and cyclic deformations with drainage. In the pressure range of 100 kPa they serve to validated visco-hypoplastic constitutive relations. This theory is also confirmed by tests with up to 14 MPa and super-imposed anti-plane cycles. After this kind of seismic disturbance the clay stabilizes if the ratio of permanent stresses is undercritical. Otherwise a spontaneous acceleration occurs after a delay. This could help to understand critical phenomena with clay smears in faults.
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Citation: Balthasar, K., Gudehus, G., Külzer, M., and Libreros Bertini, A. B.: Thin layer shearing of a highly plastic clay, Nonlin. Processes Geophys., 13, 671-680, doi:10.5194/npg-13-671-2006, 2006. Bibtex EndNote Reference Manager XML
