Stability analysis for excavation in frictional soils based on upper bound method

Z Jin, C Zhang, W Li, S Tu, L Wang, S Wang - Computers and Geotechnics, 2024 - Elsevier
This paper adopted both the numerical and analytical methods to investigate the excavation
stability against base heave failure. The finite element limit analysis method (OPTUM) was …

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 …

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 …

Stability of unsupported conical slopes in Hoek-Brown rock masses

W Yodsomjai, S Keawsawasvong… - Transportation …, 2021 - Springer
This paper presents new plasticity stability solutions of unsupported conical rock slopes,
obeying generalised Hoek-Brown failure criterion. To solve the problem, a finite element …

Undrained stability of unsupported rectangular excavations in non-homogeneous clays

B Ukritchon, S Yoang, S Keawsawasvong - Computers and geotechnics, 2020 - Elsevier
Solutions for the undrained stability of unsupported excavations are important in practice as
they can be used for assessing the safety of temporary excavations associated with various …

Undrained basal stability of braced circular excavations in non-homogeneous clays with linear increase of strength with depth

S Keawsawasvong, B Ukritchon - Computers and Geotechnics, 2019 - Elsevier
Braced circular excavations are commonly used as one of effective retaining structures in
practice. Despite a number of studies in the past on the stability of this problem, its stability …

Sample-wised probabilistic stability analysis of circular shafts using the atom search optimization-based artificial neural network

T Zhang, L An, D Dias, J Baroth, C Li - Engineering Structures, 2023 - Elsevier
Circular shafts are widely concerned in the construction of urban underground
infrastructures and their stability is essential. Uncertainties and randomness in soil …

Limit analysis solutions for stability factor of unsupported conical slopes in clays with heterogeneity and anisotropy

VQ Lai, DK Nguyen, R Banyong… - International Journal of …, 2022 - World Scientific
The novel stability solutions of unsupported conical slope in anisotropic and
inhomogeneous clays utilizing the lower-bound (LB) and upper-bound (UB) finite-element …

Undrained stability of unsupported conical slopes in two-layered clays

W Yodsomjai, S Keawsawasvong… - Innovative Infrastructure …, 2021 - Springer
A conical slope is widely used in many constructions of in situ piles, piers, footings, mat
foundations, raft foundations, energy storages, or water tanks since this unsupported …

[HTML][HTML] A new design equation for drained stability of conical slopes in cohesive-frictional soils

B Ukritchon, S Keawsawasvong - Journal of Rock Mechanics and …, 2018 - Elsevier
New plasticity solutions to the drained stability of conical slopes in homogeneous cohesive-
frictional soils were investigated by axisymmetric finite element limit analysis. Three …