General failure envelope of eccentrically and obliquely loaded strip footings resting on an inherently anisotropic granular medium

Fathipour, H; Payan, M; Jamshidi Chenari, R; Fatahi, B

General failure envelope of eccentrically and obliquely loaded strip footings resting on an inherently anisotropic granular medium

Fathipour, H Payan, M Jamshidi Chenari, R Fatahi, B

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Computers and Geotechnics, 2022, 146
Issue Date:: 2022-06-01

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Field	Value	Language
dc.contributor.author	Fathipour, H
dc.contributor.author	Payan, M
dc.contributor.author	Jamshidi Chenari, R
dc.contributor.author	Fatahi, B https://orcid.org/0000-0002-7920-6946
dc.date.accessioned	2023-04-10T23:38:23Z
dc.date.available	2023-04-10T23:38:23Z
dc.date.issued	2022-06-01
dc.identifier.citation	Computers and Geotechnics, 2022, 146
dc.identifier.issn	0266-352X
dc.identifier.issn	1873-7633
dc.identifier.uri	http://hdl.handle.net/10453/169433
dc.description.abstract	Soil is a cross anisotropic particulate medium with different strengths in various directions; this is primarily due to its geological deposition process and the very fact that particles always settle in their most stable positions. This study examines the influence of inherent anisotropy on the ultimate bearing capacity of eccentrically and obliquely loaded strip footings that rest on cohesionless granular soils using a two-dimensional plane strain finite element simulation in conjunction with the lower bound limit analysis method and second-order cone programming (SOCP). The inherent anisotropy, manifested in the so-called parameter of anisotropy ratio, is simulated by considering variable internal friction angles along different directions. The nonlinear form of the universal Mohr-Coulomb failure criterion is also used to optimize the lower bound formulation. The failure envelopes of shallow foundations that correspond to inclined and eccentric loadings are depicted and discussed for various anisotropy ratios of the underlying soil deposit. It is observed that the failure locus generally decreases in size as the anisotropy ratio increases. Based on the results of numerical simulations, a general equation that describes the general bearing capacity of shallow foundations resting on inherently anisotropic cohesionless granular medium subjected to combined vertical-horizontal-moment loadings is presented and discussed.
dc.language	English
dc.publisher	ELSEVIER SCI LTD
dc.relation.ispartof	Computers and Geotechnics
dc.relation.isbasedon	10.1016/j.compgeo.2022.104734
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0914 Resources Engineering and Extractive Metallurgy, 0915 Interdisciplinary Engineering
dc.subject.classification	Geological & Geomatics Engineering
dc.title	General failure envelope of eccentrically and obliquely loaded strip footings resting on an inherently anisotropic granular medium
dc.type	Journal Article
utslib.citation.volume	146
utslib.for	0905 Civil Engineering
utslib.for	0914 Resources Engineering and Extractive Metallurgy
utslib.for	0915 Interdisciplinary Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
pubs.organisational-group	/University of Technology Sydney/Strength - CAMGIS - Centre for Advanced Modelling and Geospatial lnformation Systems
utslib.copyright.status	closed_access	*
dc.date.updated	2023-04-10T23:38:21Z
pubs.publication-status	Published
pubs.volume	146

Abstract:

Soil is a cross anisotropic particulate medium with different strengths in various directions; this is primarily due to its geological deposition process and the very fact that particles always settle in their most stable positions. This study examines the influence of inherent anisotropy on the ultimate bearing capacity of eccentrically and obliquely loaded strip footings that rest on cohesionless granular soils using a two-dimensional plane strain finite element simulation in conjunction with the lower bound limit analysis method and second-order cone programming (SOCP). The inherent anisotropy, manifested in the so-called parameter of anisotropy ratio, is simulated by considering variable internal friction angles along different directions. The nonlinear form of the universal Mohr-Coulomb failure criterion is also used to optimize the lower bound formulation. The failure envelopes of shallow foundations that correspond to inclined and eccentric loadings are depicted and discussed for various anisotropy ratios of the underlying soil deposit. It is observed that the failure locus generally decreases in size as the anisotropy ratio increases. Based on the results of numerical simulations, a general equation that describes the general bearing capacity of shallow foundations resting on inherently anisotropic cohesionless granular medium subjected to combined vertical-horizontal-moment loadings is presented and discussed.

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http://hdl.handle.net/10453/169433