Abstract
The focus of this paper is on modeling the essential mechanical properties of weathered and moisture sensitive granular materials under dry and water saturated conditions using a state dependent solid hardness. Herein the solid hardness is related to the grain assembly in the sense of a continuum description and does not mean the hardness of an individual grain. Particular attention is paid to creep deformation initiated by water saturation of an initially dry material. First the constitutive model is outlined for isotropic loading paths. For general stress paths the influence of the stress deviator on creep deformation and stress relaxation is investigated with an extended hypoplastic model. The performance of the refined model is demonstrated for triaxial compression tests where the saturation of the material is investigated for different deviator stresses. The predictions of the model are compared with experiments.
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E. Alonso, L.A. Oldecop, Fundamentals of rockfill collapse, in Proceedings of the 1st Asian Conference on Unsaturated Soils, ed. by H. Rahardjo, D.G. Toll, E.C. Leong (Balkema, Paris, 2000), pp. 3–13
E. Bauer, Calibration of a comprehensive hypoplastic model for granular materials. Soils Found. 36(1), 13–26 (1996)
E. Bauer, Conditions for embedding Casagrande’s critical states into hypoplasticity. Mech. Cohes.-Frict. Mater. 5, 125–148 (2000)
E. Bauer, Hypoplastic modelling of moisture-sensitive weathered rockfill materials. Acta Geotechnica 4, 261–272 (2009)
E. Bauer, S.F. Tantono, Y. Zhu, L. Sihong, K. Kast, Modeling rheological properties of materials for rockfill dams, in Proceedings of 1st International Conference on Long Time Effects and Seepage Behavior of Dams, ed. by Y. Zhu, S. Liu, S. Qiang, A. Chiu (Hohai University Press, Nanjing, 2008), pp. 73–80
J. Brauns, K. Kast, A. Blinde, Compaction effects on the mechanical and saturation behaviour of disintegrated rockfill, in Proceedings of the International Conference on Compaction, vol. 1, Paris, 1980, pp. 107–112
Z.Z. Fu, E. Bauer, Hypoplastic constitutive modelling of the long term behaviour and wetting deformation of weathered granular materials, in Proceedings of the 2nd International Conference on Long Term Behaviour of Dams, Graz, Austria, ed. by E. Bauer, S. Semprich, G. Zenz (Graz University of Technology, Graz, 2009) pp. 473–478
G. Gudehus, A comprehensive constitutive equation for granular materials. Soils Found. 36(1), 1–12 (1996)
G.X. Li, Triaxial wetting experiments on rockfill materials used in Xiaolangdi earth dam. Research report from Tsinghua University, 1988
H. Matsuoka, T. Nakai, Stress-strain relationship of soil based on the ’SMP’, in Proceedings of Specialty Session 9, IX International Conference Soil Mechanics and Foundation Engineering, Tokyo, 1977, pp. 153–162
E.S. Nobari, J.M. Duncan, Effect of reservoir filling on stresses and movements in earth and rockfill dams. Department of Civil Engineering, Report No. TE-72-1, University of California, 1972
L.A. Oldecop, E. Alonso, Theoretical investigation of the time-dependent behaviour of rockfill. Géotechnique 57(3), 289–301 (2007)
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Bauer, E., Fu, Z. (2011). Modeling of Weathered and Moisture Sensitive Granular Materials. In: Bonelli, S., Dascalu, C., Nicot, F. (eds) Advances in Bifurcation and Degradation in Geomaterials. Springer Series in Geomechanics and Geoengineering. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-1421-2_44
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DOI: https://doi.org/10.1007/978-94-007-1421-2_44
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