A strain dependent stiffness of stiff cohesionless and cohesive soils

• Autorzy: Lipiński M. J. , Wdowska M. K.
• Języki publikacji: EN

Abstrakty

EN

In the last three decades an interest has grown in prediction of soil stiffness. In case of dense cohesionless soils or natural overconsolidated cohesive soils the working strain to which soil stiffness is referred to covers the range 0.01–1.0%. On the basis of results of comprehensive experimental worked based on advanced triaxial tests results two formulae for Young’s modulus distribution accounting for strain range were derived for fine dense sand and heavy overconsolidated sandy clay. The formula for sand accounts also for stress level. In case of overconsolidated sandy clay, stress history, in the form of yield stress, is also accounted for.

Słowa kluczowe

EN

cohesive soil; geotechnics; soil stiffness

PL

grunt spoisty; odkształcenie podłoża; geotechnika; sztywność gruntu

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2012
• Tom: Vol. 34, nr 4
• Strony: 53--67
• Opis fizyczny: Bibliogr. 9 poz., tab., rys.

Twórcy

autor

Lipiński M. J.

• Faculty of Civil and Environmental Engineering, Department of Geotechnical Engineering, Warsaw University of Life Sciences – SGGW, ul. Nowoursynowska 159, 02-776 Warszawa, Poland

autor

Wdowska M. K.

• Faculty of Civil and Environmental Engineering, Department of Geotechnical Engineering, Warsaw University of Life Sciences – SGGW, ul. Nowoursynowska 159, 02-776 Warszawa, Poland

Bibliografia

• [1] BURLAND J.B. (1990), On the compressibility and shear strength of natural clays, Géotechnique, Vol. 40(3), 329–378.
• [2] HARDIN B.O., BLACK W.L. (1968), Vibration Modulus of Normally Consolidated Clay, Journal of the Soil Mechanics and Foundations Division ASCE, 94 (SM2), 353–369.
• [3] JAMIOLKOWSKI M., LADD C.C., GERMAINE J.T., LANCELLOTTA R. (1985), New developments in field and laboratory testing of soils, Proc. 9th Int. Conf. Soil Mech., San Francisco, 1, 57–153.
• [4] JARDINE R.J., SYMES M.J., BURLAND J.B. (1984), The measurement of soil stiffness in the triaxial apparatus, Géotechnique, Vol. 34 (3), 323–340.
• [5] LADD C.C., FOOTE R. (1974), A New Design Procedure for Stability of Soft Clays, Journal of the Geotechnical Engineering Division, ASCE, Vol. 100, No. GT7, 763–786.
• [6] MAIR R.J. (1993), Development in geotechnical engineering research: application to tunnels and deep excavations, Proceedings of the Institution of Civil Engineers, Unwin Memorial Lecture 1992, Civil Engineering, 93, 27–41.
• [7] ROSCOE K.H. SCHOFIELD A.N., WROTH C.P. (1958), On yielding of soils, Geotechnique, 8, 22–53.
• [8] SCHOFIELD A.N., WROTH C.P. (1968), Critical state soil mechanics, McGraw-Hill, London.
• [9] WDOWSKA M. (2010), Influence of stress history on evaluation of stiffness of cohesive soils, Ph.D. thesis, WULS –SGGW Warszawa. (in Polish – Wpływ historii naprężenia na odkształcalność gruntów spoistych).