Bearing Capacity of Strip Foundations on Anisotropic Clay Using NGI-ADP Constitutive Model
Keywords:
Anisotropic shear strength, Strip foundation, NGI-ADP constitutive model, Bearing capacity, Parametric studyAbstract
In this paper, parametric studies of anisotropic shear strength of clay were performed to determine bearing capacity factor of strip foundations on clay by using NGI-ADP constitutive model. The two dimensional plane strain finite element was employed to determine the undrained bearing capacity factor as a function of dimensionless variables of undrained shear strength obtained from three modes of shearing, including undrained tests of triaxial compression (TC), triaxial extension (TE) and direct simple shear (DSS). The computational results obtained from geotechnical software, namely Plaxis, were compared with the exact solutions to verify the capabilities of NGI-ADP constitutive model in design practice.
References
[2] W. Chim-oye, “Effect of Anisotropy to Shear Strength Behavior of Soft Bangkok Clay”, Journal of Science and Technology, 18(4) pp. 50-59, 2553.
[3] L. C. Kurukulasuriya, M. Oda, and H. Kazama, “Anisotropic of Undrained Shear Strength of an Over-Consolidated Soil by Triaxial and Plane Strain Tests”, Soil and Foundations, Vol. 39, No. 1, pp. 21-29, 1999.
[4] L. Zdravjivic, and R. J. Jardine, “The Effect on Anisotropy of Rotating the Principal Stress Axes During Consolidation”, Geotechnique, Vol. 51, pp. 69-83, 2001
[5] N. Sangtian, Vertical Direct Shear Test to Simulate the Field Vane Behavior of Soft Clay,”Master Thesis, Asian Institute of Technology, Bangkok, Thailand, 1996.
[6] R. Satawiriya, Undrained Shear Strength Anisotropy of Soft Bangkok Clay, Master Thesis, Chulalongkorn University, Bangkok, 1982.
[7] G. Grimstad, L. Andresen, and H. P. Jostad, "NGI-ADP: Anisotropic Shear Strength Model for Clay". International Journal for Numerical and Analytical Methods in Geomechanics, Vol. 36, pp 483–497, 2012.
[8] R. B. J. Brinkgreve, PLAXIS 2D Version 8 Manual. A.A. Balkema Publishers, 2002: www.plaxis.com.
[9] K. Terzaghi, Theoretical Soil Mechanics, New York: Wiley, 1943.
[10] E. H. Davis, and J. T. Christian, "Bearing Capacity of Anisotropic Cohesive Soil". Journal of Soil Mechanics and Foundation Division, Vol. 97, pp. 753–769, 1971.
[11] S.W. Sloan, “Geotechnical Stability Analysis”. Géotechnique, Vol. 63(7), pp.531–572. 2013
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