Dilation and Modelling of Sands in the Light of Experimental Data

• Autorzy: Sawicki A.

Identyfikatory

DOI

10.1515/heem-2015-0001

• Języki publikacji: EN

Abstrakty

EN

The problem of dilation is discussed in the context of classical Cam-Clay model, which was developed on the basis of a specific assumption regarding the plastic work. This assumption leads to a special form of the dilation function, from which a shape of yield function is derived. The above mentioned assumption is compared with the results of the triaxial tests, performed on the model “Skarpa” sand. It is shown that the Cam-Clay approach is not realistic, as it is based on the assumption which is not consistent with experimental data. Some general considerations and discussion of this problem are also presented.

Słowa kluczowe

EN

sands; dilation; constitutive equations

• Wydawca: Institute of Hydro-Engineering of Polish Academy of Sciences
• Czasopismo: Archives of Hydro-Engineering and Environmental Mechanics
• Rocznik: 2014
• Tom: Vol. 61, nr 1-2
• Strony: 3--15
• Opis fizyczny: Bibliogr. 22 poz., rys., tab.

Twórcy

autor

Sawicki A.

• Institute of Hydro-Engineering, Polish Academy of Sciences, ul. Koscierska 7, 80-328 Gdansk, Poland

Bibliografia

• Atkinson J. (1993) An Introduction to the Mechanics of Soils and Foundations, McGraw-Hill, London.
• Baledran B. and Nemat-Nasser S. (1993) Double sliding model for cyclic deformation of granular materials, including dilatancy effects, Jnl Mechanics & Physics of Solids, 41 (3), 573-612.
• Bolton M. (1986) The strength and dilatancy of sands, Geotechnique, 36 (1), 65-78.
• Boukpeti N., Mróz Z. and Drescher A. (2002) A model for static liquefaction in triaxial compression and extension, Canadian Geotechnical Jnl, 39 (6), 1243-1253.
• Burland J. B. (1965) The yielding and dilation of clay, Geotechnique, 15, 211-214.
• Gryczmanski M. (1995) Wprowadzenie do opisu sprezysto-plastycznych modeli gruntów (Introduction to elasto-plastic models of soils), Studia z zakresu inzynierii nr 40, KILiW PAN i IPPT PAN, Warszawa (in Polish).
• Houlsby G. T. (1991) How the dilatancy of soils affects their behaviour, Report Number OUEL 1888/91, Soil Mechanics Report Number 121/91, University of Oxford, Department of Engineering Science.
• Jarzebowski A. (1990) Modele konstytutywne dla gruntów sypkich - przeglad aktualnych koncepcji (Constitutive models of granular soils: Review of current concepts), Prace IPPT PAN, nr 24, Warszawa (in Polish).
• Mróz Z., Boukpeti N. and Drescher A. (2003) Constitutive model for static liquefaction, Int. Jnl of Geomechanics, ASCE, 3 (2), 133-144.
• Ortigao J. A. R. (1995) Soil Mechanics in the Light of Critical State Theories, An Introduction, Balkema, Rotterdam/Brookfield.
• Roscoe K. H., Schofield A. N. and Thurairajah A. (1963) Yielding of clays in stress wetter than critical, Geotechnique, 13, 211-240.
• Rowe P. W. (1962) The stress-dilatancy relation for static equilibrium of an assembly of particles in contact, Proc. Royal Society, Series A, 269, 500-527.
• Saada A. and Bianchini G. - Eds (1989) Constitutive Equations for Granular Non-Cohesive Soils, Balkema, Rotterdam/Brookfield.
• Sawicki A. (2003) Cam-Clay approach to modelling pre-failure behaviour of sand against experimental data, Archives of Hydro-Engineering & Environmental Mechanics, 50 (3), 229-249.
• Sawicki A. (2011) Dilation and stability of sand in triaxial tests, Geotechnical Engineering Journal of SEAGS & AGSSEA, 42 (4), 1-9.
• Sawicki A. (2012) Outline of Mechanics of Granular Soils (in Polish), IBW PAN Publishing House, Gdansk, 214 pages.
• Sawicki A. and Swidzinski W. (2010) Stress-strain relations for dry and saturated sands. Part I: Incremental model, Jnl Theoretical & Applied Mechanics, 48 (2), 309-328.
• Schanz T. and Vermeer P. A. (1996) Angles of friction and dilatancy of sand, Geotechnique, 46 (1), 145-151.
• Schofield A. N. and Wroth C. P. (1968) Critical State Soil Mechanics, McGraw-Hill, London.
• Tatsuoka F. (1972) Shear tests in a triaxial apparatus - a fundamental study of the deformation of sand (in Japanese), PhD Thesis, Tokyo.
• Vaid Y. P. and Sasitharan S. (1992) The strength and dilatancy of sand, Canadian Geotechnical Jnl, 29, 522-526.
• Wood D. M. (1990) Soil Behaviour and Critical States Soil Mechanics, Cambridge University Press.