Basic numerical modelling issues in dynamic soil-tunnel interaction

VG Terzi, GD Manolis - Soil Dynamics and Earthquake Engineering, 2023 - Elsevier
Tunnels are classified as civil engineering infrastructure which serves various functions that
are primarily associated with transportation of vehicles and liquids. Their design and …

Overview of constitutive models for soils

PV Lade - Soil constitutive models: Evaluation, selection, and …, 2005 - ascelibrary.org
Numerous constitutive models have been developed over the past forty years for modeling
the stress-strain behavior of soils. These models are to be used with finite element and/or …

Hypoplastic modeling of inherent anisotropy in normally and overconsolidated clays

YQ He, HJ Liao, W Wu, S Wang - Acta Geotechnica, 2023 - Springer
Inherent anisotropy is often observed in natural clays. This paper presents a hypoplastic
constitutive model to describe the inherent anisotropy of normally and overconsolidated …

Three-dimensional lower bound finite element limit analysis of an anisotropic undrained strength criterion using second-order cone programming

B Ukritchon, S Keawsawasvong - Computers and Geotechnics, 2019 - Elsevier
This paper describes a formulation of second-order cone programming for three-
dimensional lower bound finite element limit analysis considering a cross-anisotropic …

Modified UH model: constitutive modeling of overconsolidated clays based on a parabolic Hvorslev envelope

Y Yao, Z Gao, J Zhao, Z Wan - Journal of Geotechnical and …, 2012 - ascelibrary.org
Most clays, either naturally deposited or man-made, possess a certain degree of
overconsolidation owing to tamping, cyclic loading, erosion, excavation, and/or changes in …

Comparison of two inverse analysis techniques for learning deep excavation response

YMA Hashash, S Levasseur, A Osouli, R Finno… - Computers and …, 2010 - Elsevier
Performance observation is a necessary part of the design and construction process in
geotechnical engineering. For deep urban excavations, empirical and numerical methods …

STZ-Clay: A shear-transformation-zone theory based constitutive model for clay

WL Li, N Guo, ZX Yang - International Journal of Plasticity, 2024 - Elsevier
The shear-transformation-zone (STZ) theory is a mesoscale-based approach that attributes
material macroscopic plastic deformation to the flipping, creation, and annihilation of …

A simple critical-state-based double-yield-surface model for clay behavior under complex loading

ZY Yin, Q Xu, PY Hicher - Acta Geotechnica, 2013 - Springer
The critical state concept has been widely used in soil mechanics. The purpose of this study
is to apply this concept in the framework of multi-mechanism elastoplasticity. The developed …

A thermomechanical model for saturated soil at small and large strains

C Zhou, CWW Ng - Canadian Geotechnical Journal, 2015 - cdnsciencepub.com
Many elastoplastic models have been developed for simulating thermomechanical
behaviour of saturated soil. Although the yield surface of these models shrinks with …

[HTML][HTML] Validation of a simple hypoplastic constitutive model for overconsolidated clays

S Wang, W Wu - Acta Geotechnica, 2021 - Springer
Hypoplastic constitutive models are able to describe history dependence using a single
nonlinear tensorial function with a set of parameters. A hypoplastic model including a …