Granulometric limits of hypoplastic models

• Autorzy: Herle I.
• Języki publikacji: EN

Abstrakty

EN

Several successful applications of the hypoplastic models would not be possible without a reliable and simple calibration procedure of the model parameters. The procedure utilizing standard properties of grain assemblies is well-suited for sands and is briefly outlined here. However, there are limits for the application of this approach for other soils. This is demonstrated for a coarse-grained limestone rockfill and a fined-grained loess. Whereas the parameter determination of the limestone rockfill is mainly limited by the available laboratory equipment, the calibration procedure must be significantly modified for the loess soil. Finally, a serious problem concerning the application of the hypoplastic model for soils with low friction angles is discussed. It is shown that in this case the ratio of incremental stiffness moduli in triaxial and isotropic compression is unrealistically low.

Słowa kluczowe

EN

hypoplastic law; calibration; constitutive parameters; sand; limestone rockfill; clay; loess soil

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2000
• Tom: Vol. 4, No 3
• Strony: 389--408
• Opis fizyczny: Bibliogr. 31 poz., rys., tab.

Twórcy

autor

Herle I.

• Institute of Theoretical and Applied Mechanics, Czech Academy of Sciences, Prosecka 76, 190 00 Praha 9, Czech Republic

Bibliografia

• [1] Bauer J., Calibration of a comprehensive hypoplastic model for granular materials, Soils and Foundations 36, 13, 1996
• [2] Bauer E. and Hcrle I., Stationary states in hypopiasticity, in D. Kolymbas (editor). Constitutive Modelling of Granular Materials, 167, Horton, Springer, 2000
• [3] Chambon R„ Desrues J., Hammad W. and Charlier R., CLoE, a new rate-type constitutive model for geomaterials. Theoretical basis and implementation. International Journal for Numerical and Analytical Methods in Geomechanics 18, 253, 1994
• [4] Feda J. Collapse of loess upon wetting. Engineering Geology 25, 263, 1988
• [5] Feda J., Bohac J. and Herle I., Compression of collapsed loess: Studies on bonded and unbonded soils. Engineering Geology 34, 95, 1993
• [6] Feda J., Bohac J. and Herle I., End restraint in triaxial testing of soils, Acta Technica CSAV38,197,1993
• [7] Gudehus G., A comprehensive constitutive equation for granular materials. Soils and Foundations 36, 1, 1996
• [8] Gudehus G., Attractors, percolation thresholds and phase limits of granular soils. In Behringer and Jenkins (cds). Powders and Grains, 169, Balkema. 1997
• [9] Hcrle I., llypoplastizitdt und Granulometric einfacher Korngeriiste, Veroffentlichungen des Institutes fiiur Bodenmechanik und Felsmechanik dcr Universitiit Fridericiana in Karlsruhe, Heft 142. 1997
• [10] Herle F and Gudehus G., Determination of parameters of a hypoplastic constitutive model from properties of grain assemblies. Mechanics of Cohesive-Frictional Materials 4,461, 1999
• [11] Herle I. and Mayer P. M., Verformungsherechnung einer Unterwasserhctonbaugruhe auf dm Grundlage hvpoplastisch ermittelter Parameter des Berliner Sandes, Bautechnik 76,34, 1999
• [12] Huge! H.M., Prognose von Bodcnverformungen, Veroffentlichungen des Institutes fur Bodenmechanik und Felsmechanik der Universitat Fridericiana in Karlsruhe, Heft 136,1995
• [13] Koemer R.M., Effect of particle characteristics on soil strength, Journal of the Soil Mechanics and Foundations Division ASCE 96. 1221, 1970
• [14] Kolbuszewski J. and Frederick M.. The significance of particle shape and size on the mechanical behaviour of granular materials. In Proc. ECSMFE, Wiesbaden, 253, 1963
• [15] Kolymbas D., A generalized hypoelastie constitutive law. In Proc. XI Int. Conf. Soil Mechanics and Foundation Engineering, 5, 2626, San Francisco, Balkema, 1985
• [16] Kolymbas D., An outline of hypopiasticity, Archive of Applied Mechanics, 61, 143, 1991
• [17] Kolymbas D. and Bauer E.. Soft oedometer — a new resting device and its application for the calibration of hypoplastic constitutive laws. Geotechnical Testing Journal 16. 263,1993
• [18] Kolymbas D., Herle I. and von Wolffersdorff P. A., Hypoplastic constitutive equation with back stress. International Journal for Numerical and Analytical Methods in Geomechanics 19,415,1995
• [19] Mitchell J., Fundamentals of soil behavior, John Wiley & Sons, New York, second edition, 1993
• [20] Niemunis A. and Herle I., Hypoplastic model for cohesionless soils with elastic strain range, Mechanics of Cohesive-Frictional Materials 2,279, 1997
• [21] Niibel K. and Cudmani R , Examples of finite element calculations with the hypoplastic law, In: Kolymbas D. (ed.). Constitutive Modelling of Granular Materials, pages 523-538, Springer, 2000
• [22] Raymond G.R and Davies J.R.. Triaxial tests on dolomite railroad ballast. Journal of Geotechnical Engineering ASCE 104(GT6), 737, 1978
• [23] Riemer M.F.. Seed R.B., Nicholson RG. and Jong H. L., Steady state testing of loose sands: limiting minimum density. Journal of Geotechnical Engineering ASCE 116. 332.1990
• [24] Schofield A. and Wroth C., Critical stale soil mechanics, McGraw-Hill. London, 1968
• [25] Seed He, Woodward R.J. and R.Lundgren, Fundamental aspects of the Atterherg limits. Journal of the Soil Mechanics and Foundations Division ASCE 90(SM6), 75, 1964
• [26] Tejchman J. and Herle I., A "class A "prediction of the bearing capacity of plane strain footings on sand. Soils and Foundations 39, 47, 1999
• [27] von Wolffersdorff P. A., A hypoplastic relation for granular materials with a predefined limit state surface. Mechanics of Cohesive-Frictional Materials 1,251. 1996
• [28] von Wolffersdorff P. A., Verformungsprognosen fiir Stiitckonstruktionen, Veroffcnt- lichungen des Institutes fl'ir Bodenmechanik und Felsmechanik der Univcrsitiit Fridcriciana in Karlsruhe, Heft 141,1997
• [29] Wood D.M., Soil behaviour and critical state soil mechanics, Cambridge University Press, Cambridge, 1990
• [30] Wu W., Bauer E. and Kolymbas D., Hypoplastic constitutive mode! with critical state for granuar materials, Mechanics of Materials 23, 45, 1996
• [31] Youd T., Factors controlling maximum and minimum densities of sands, In: Evaluation of relative density and its role in geotechnical projects involving cohesionless soils, STP 523,98, ASTM, 1973