Results 21 to 30 of about 150,279 (290)

Excess pore water pressure generation in fine granular materials under undrained cyclic triaxial loading

open access: yesInternational Journal of Geo-Engineering, 2023
Understanding the mechanism of excess pore water pressure generation in subgrades is essential for not only designing but also further maintenance purposes.
T. Do, J. Laue, H. Mattsson, Q. Jia
semanticscholar   +1 more source

Long-Term Cyclic Triaxial Tests With Dem Simulations

open access: yesPARTICLES 2017, V International Conference on Particle-based Methods – Fundamentals and Applications, 2017
The present paper presents the capability of Discrete Element Method (DEM) to simulate a long-term cyclic drained triaxial test (up to 100,000 cycles). The results regard the progressive accumulation of plastic strain as function of the number of particles and the initial particles rearrangement.
Zorzi, Gianluca   +3 more
openaire   +3 more sources

Dilatancy relation for overconsolidated clay [PDF]

open access: yes, 2017
A distinct feature of overconsolidated (OC) clays is that their dilatancy behavior is dependent on the degree of overconsolidation. Typically, a heavily OC clay shows volume expansion, whereas a lightly OC clay exhibits volume contraction when subjected ...
Gao, Zhiwei, Yin, Zhen-Yu, Zhao, Jidong
core   +2 more sources

Monotonic and cyclic triaxial testing of untreated and polyurethane-treated soil and soil–rubber mixtures

open access: yesActa Geotechnica, 2023
The present research focuses on developing alternate sustainable base materials for a high-speed slab track. In this study, a series of monotonic triaxial, cyclic triaxial and permeability tests were conducted on four types of materials, viz.
M. A. Farooq, Sanjay Nimbalkar
semanticscholar   +1 more source

Evaluation and Comparison of two Frequently Used Cyclic Constitutive Models for Sandy Soils [PDF]

open access: yesمدل‌سازی پیشرفته در مهندسی عمران
Selection of an appropriate soil constitutive model for advanced numerical analyses requires thorough understanding of behavior of constitutive models. Here, SANISAND and HS-SMALL models which are advanced widely available soil models for cyclic behavior
Hossein Javaheri Koupaei, Samad Choobi
doaj   +1 more source

A Comparison between Simple Shear and Triaxial Tests for Evaluating the Variations of G and D with Matric Suction [PDF]

open access: yesE3S Web of Conferences, 2019
Shear modulus (G) and damping ratio (D) are both well known as principal soil dynamic parameters. In the present study, cyclic triaxial and simple shear tests are performed on Firuzkuh silica sand at various shear strain amplitudes using the developed ...
Fakharian Kazem   +2 more
doaj   +1 more source

Sleeper end resistance of ballasted railway tracks [PDF]

open access: yes, 2014
This paper describes model tests used to investigate how ballast shoulder width and height contribute to a railway sleeper’s resistance to lateral movement for a range of shoulder widths and heights.
Bhandari, A.R., Le Pen, L., Powrie, W.
core   +1 more source

Behaviour of saturated sand under cyclic loading: Model approach with experimental validation [PDF]

open access: yesE3S Web of Conferences
This study presents a comparison between triaxial test results and constitutive model simulations for saturated sand subjected to a wide range of stress, relative density and both monotonic and cyclic loadings.
Velayudham Jotheeshwar   +3 more
doaj   +1 more source

An appraisal of end conditions in advanced monotonic and cyclic triaxial testing on a range of geomaterials [PDF]

open access: yesE3S Web of Conferences, 2019
Compressing samples between rigid platens, as in triaxial testing, induce non-uniform specimen stress, strain and pore water distributions. Although well recognised historically, the effects of such platen restraints are often disregarded or overlooked ...
Vinck Ken   +3 more
doaj   +1 more source

Removal of the membrane penetration error during evaluation of triaxial data

open access: yesOpen Geomechanics, 2021
Most triaxial tests are fraught with substantial membrane penetration errors. A simple correction procedure for data obtained from various tests is proposed. In particular, a correction of the undrained cyclic stress paths is presented in detail.
Andrzej Niemunis, Lukas Knittel
doaj   +1 more source

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