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Geohazards
June 18-21, 2006 - Lillehammer, Norway
| Editors: |
, International Centre for Geohazards, Oslo, Norway
, Managing Director, ILF - Consulting Engineers, Innsbruck, Austria
, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
, TU Bergakademie Freiberg, Institut für Geotechnik, Freiberg, Germany
, University of Washington, Seattle, Washington, USA |
The articles for these proceedings are not peer-reviewed.
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The Importance of Laboratory Experiments in Landslide Investigation
Barbara Schneider-Muntau, AlpS -GmbH, Center for Natural Hazard Management
D. Renk, AlpS -GmbH, Center for Natural Hazard Management
T. Marcher, ILF – Consulting Engineers
Wolfgang Fellin, Institute of Geotechnical and Tunnel Engineering, University Innsbruck
ABSTRACT:
This study focuses on a better understanding of mass movements and on the influences of different boundary conditions on velocities of creeping slopes. A well monitored example of a slowly creeping landslide is the mass movement Hochmais - Atemkopf, situated in the Kaunertal, Tyrol, Austria (Fig. 1). The long term monitoring program for more than 40 years of this landslide gives a good impression of its time dependent behaviour. A large amount of additional data, as geological mapping, boreholes, geophysical investigation and so on provides a funded base for the model’s geometry. The most influencing factor for finite element calculations is besides the model’s geometry the rheological model and the therefor adapted material properties. Creep laboratory experiments have been performed and evaluated for the most active sliding zone. Long term shear tests from 1964 have been reevaluated and compared with current long term triaxial tests. The experiments reveal a non linear dependence between equivalent stress and displacement rate. An elasto, visco - plastic rheological model with a non-linear viscose deformation has been fitted to those results.
Barbara Schneider-Muntau, D. Renk, T. Marcher, and Wolfgang Fellin, "The Importance of Laboratory Experiments in Landslide Investigation" in "Geohazards", Farrokh Nadim, Rudolf Pöttler, Herbert Einstein, Herbert Klapperich, and Steven Kramer Eds, ECI
Symposium Series, Volume P07 (2006). http://services.bepress.com/eci/geohazards/12
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