Volume 36, Issue 1 (9-2017)
2017, 36(1): 137-147 |
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Jamshidi Chenari R, Mahigir A. The Effect of Mechanical Anisotropy and Heterogeneity of Shear Strength Parameters of Soils on Drained Bearing Capacity of Shallow Foundations. Computational Methods in Engineering 2017; 36 (1) :137-147
URL: http://jcme.iut.ac.ir/article-1-689-en.html
URL: http://jcme.iut.ac.ir/article-1-689-en.html
1- Department of Civil Engineering, Faculty of Engineering, University of Guilan, Guilan, Iran , Jamshidi_reza@guilan.ac.ir
2- Department of Civil Engineering, Faculty of Engineering, University of Guilan, Guilan, Iran
2- Department of Civil Engineering, Faculty of Engineering, University of Guilan, Guilan, Iran
Abstract: (4976 Views)
Natural formation of soil deposits causes heterogeneity and anisotropy in their strength and stiffness properties. However, most soils in their natural states exhibit some anisotropy with respect to shear strength and heterogeneity with respect to the depth. In this paper, the standard Mohr- Coulomb constitutive law is generalized to anisotropic version in order to consider the effect of cohesion anisotropy of soil. Random field theory coupled with finite difference method was utilized in Monte Carlo simulations with considering the effect of auto-correlation and cross correlation between strength parameters of soil, in order to calculate the bearing capacity of shallow foundation in a strain controlled scheme. The results showed that the bearing capacity of shallow foundation decreases with increasing in variability of strength parameters and increases with increasing in anisotropy ratio.
Keywords: Mechanical anisotropy, Heterogeneity anisotropy, Bearing capacity, Shallow foundations, Spatial variability.
Type of Study: Research |
Subject:
Special
Received: 2017/09/5 | Accepted: 2017/09/5 | Published: 2017/09/5
Received: 2017/09/5 | Accepted: 2017/09/5 | Published: 2017/09/5
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