Undrained stability of ring foundations: axisymmetry, anisotropy, and nonhomogeneity

S Keawsawasvong, J Shiau… - International Journal …, 2022 - ascelibrary.org
Ring foundations are widely used to support various types of offshore structures because of
the cost-effective reason. Unlike the traditional circular foundations, very few studies were …

Limit analysis of lateral earth pressure on geosynthetic-reinforced retaining structures using finite element and second-order cone programming

H Fathipour, M Payan, RJ Chenari - Computers and Geotechnics, 2021 - Elsevier
In this paper, a thorough numerical study is conducted to rigorously evaluate the lateral
earth pressures exerted on the retaining walls backfilled with geosynthetic-reinforced soil …

[HTML][HTML] Design equation for stability of a circular tunnel in anisotropic and heterogeneous clay

S Keawsawasvong, B Ukritchon - Underground Space, 2022 - Elsevier
The safety assessment of tunnel stability is critical to tunnel construction and requires
accurate analysis to obtain a reliable prediction. Strength anisotropy is an important aspect …

Limit analysis of modified pseudodynamic lateral earth pressure in anisotropic frictional medium using finite-element and second-order cone programming

H Fathipour, AS Siahmazgi, M Payan… - International Journal …, 2021 - ascelibrary.org
This paper aims at analyzing the active and passive lateral earth pressures exerted on
retaining walls due to the anisotropic medium of dry and noncohesive backfill subjected to …

Undrained stability of plane strain active trapdoors in anisotropic and non-homogeneous clays

S Keawsawasvong, B Ukritchon - Tunnelling and Underground Space …, 2021 - Elsevier
Despite a large number of studies on the active failure of trapdoors conducted in the
literature, there are very limited studies examining the combined influences of undrained …

Undrained stability of unsupported conical slopes in anisotropic clays based on Anisotropic Undrained Shear failure criterion

W Yodsomjai, S Keawsawasvong… - Transportation …, 2021 - Springer
In this paper, novel stability solutions of unsupported conical slopes in anisotropic clays are
presented by using the lower bound and upper bound finite element limit analyses under an …

Evaluation of the lateral earth pressure in unsaturated soils with finite element limit analysis using second-order cone programming

H Fathipour, AS Siahmazgi, M Payan… - Computers and …, 2020 - Elsevier
This paper aims at studying the active and passive earth pressures on the retaining
structures having an unsaturated backfill. To this end, the well-established lower bound limit …

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

H Fathipour, M Payan, RJ Chenari, B Fatahi - Computers and Geotechnics, 2022 - Elsevier
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 …

Undrained stability of unlined square tunnels in clays with linearly increasing anisotropic shear strength

B Ukritchon, S Keawsawasvong - Geotechnical and Geological …, 2020 - Springer
In general, the undrained strength anisotropy of clays is found in nature. Its effect on a
stability problem during undrained loading should be considered in order to get a more …

Bearing capacity of conical footings on clays considering combined effects of anisotropy and non-homogeneity

S Keawsawasvong - Ships and Offshore Structures, 2022 - Taylor & Francis
ABSTRACT A spudcan is one of the foundation systems widely used to support the load
transferred from a jack-up platform for most offshore drilling operations. The spudcan is an …