53 results
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2. A cyclic p–y elastoplastic model applied to lateral loaded pile in soft clays.
- Author
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Cheng, Xinglei, El Naggar, M. Hesham, Lu, Dechun, Wang, Piguang, and Tu, Wenbo
- Subjects
BENDING moment ,CYCLIC loads ,LATERAL loads ,SOIL degradation ,STRAINS & stresses (Mechanics) ,CLAY - Abstract
The p–y method as a simplified analysis tool has been widely used to analyze the behavior of laterally loaded piles. This paper develops a novel cyclic p–y elastoplastic model within the framework of the single-surface bounding surface theory. The model can capture the soil stiffness degradation during cyclic loading by incorporating the cumulative plastic displacement to an interpolation function of the elastoplastic resistance coefficient. The model is relatively simple with only four parameters that can be determined from standard soil properties and stress–strain responses measured in direct simple shear tests. The performance of developed model is validated by predicting the cyclic lateral response of piles installed in soft clay during field and centrifuge tests published in the literature. The model can reliably simulate monotonic and cyclic responses of piles under different lateral loading patterns, and capture main characteristics of the pile-head load–displacement curve, such as nonlinearity, hysteresis, displacement accumulation, and stiffness degradation. It can also predict the evolution of the lateral deflection and sectional bending moment along the pile during cyclic loading. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
3. A unified critical state parameter model for sand and overconsolidated clay in the framework of subloading surface theory.
- Author
-
Cui, Kai, Wang, Xiaowen, Yuan, Ran, and Liu, Kaiwen
- Subjects
CLAY ,EULER method ,NUMERICAL integration ,SAND ,STRAINS & stresses (Mechanics) ,SOILS ,SAND dunes ,SAND waves ,ELASTIC deformation - Abstract
This paper presents a unified critical state parameter model for evaluating sand and overconsolidated clay, which is named as CASM-S. The model is formulated in terms of the modification of the clay and sand model, i.e., CASM, by incorporating the subloading surface theory with an overconsolidation state parameter R. Although the standard CASM proves to be useful in modelling overconsolidated clay and sand, the model (1) requires the rate of overconsolidated ratio to be constant which is in contrast to the observed behaviour of soils and (2) only allows elastic deformation to develop at the overconsolidated state that may underestimate the deformation corresponding to the peak stress or be unable to predict the actual stress path. By introducing a new material parameter u to those material properties of the standard CASM, the rate relationship of stress–strain for the CASM-S model is developed. The standard CASM can be either recovered or approximated as a special case of the overconsolidation state assumed in the CASM-S. The numerical integration of the newly proposed model is performed by the modified forward Euler method. Validation with undrained and drained overconsolidated clay and sand have demonstrated the capability of the CASM-S model to well predict the observed soil behaviours. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
4. Experimental investigation and constitutive modeling of the behaviour of highly plastic Lower Rhine clay under monotonic and cyclic loading.
- Author
-
Tafili, Merita, Wichtmann, Torsten, and Triantafyllidis, Theodoros
- Subjects
CYCLIC loads ,STRAINS & stresses (Mechanics) ,YIELD surfaces ,STRAIN rate ,CLAY ,KAOLIN - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2021
- Full Text
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5. Effect of OCR on sampling disturbance of cohesive soils and evaluation of laboratory reconsolidation procedures.
- Author
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Santagata, Marika and Germaine, John T.
- Subjects
STRENGTH of materials ,SAMPLING (Process) ,CLAY ,STRAINS & stresses (Mechanics) ,SOILS ,CONSTRUCTION materials - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2005
- Full Text
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6. Drained cavity expansion analysis with a unified state parameter model for clay and sand.
- Author
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Mo, Pin-Qiang and Yu, Hai-Sui
- Subjects
SOIL mechanics ,CLAY ,SAND ,STRAINS & stresses (Mechanics) ,CONE penetration tests ,MATHEMATICAL models - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
- Full Text
- View/download PDF
7. Test fill brought to failure on soft plastic marine clay at Onsøy, Norway.
- Author
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Berre, Toralv
- Subjects
LANDFILLS ,CLAY ,STRENGTH of materials ,PLASTICITY measurements ,STRAINS & stresses (Mechanics) - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
- Full Text
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8. Experimental simulation and mathematical modelling of clogging in stone column.
- Author
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Tai, Pei, Indraratna, Buddhima, and Rujikiatkamjorn, Cholachat
- Subjects
COLUMNS ,UNIT cell ,CLAY ,SOILS ,COMPUTED tomography ,STRAINS & stresses (Mechanics) - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
- Full Text
- View/download PDF
9. Bearing capacity under cyclic loading - offshore, along the coast, and on land. The 21st Bjerrum Lecture presented in Oslo, 23 November 2007.
- Author
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Andersen, Knut H.
- Subjects
SHEAR (Mechanics) ,SHEAR strength of soils ,DYNAMIC testing of materials ,LOADING & unloading ,OFFSHORE oil & gas industry ,OFFSHORE gas well drilling ,SLOPES (Soil mechanics) ,STRAINS & stresses (Mechanics) - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2009
- Full Text
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10. Uplift tests on full-scale pipe segment in lumpy soft clay backfill.
- Author
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Chen, R.P., Zhu, B., and Ni, W.J.
- Subjects
PIPELINES ,LANDFILLS ,CLAY ,PRESSURE transducers ,SHEAR strength of soils ,STRAINS & stresses (Mechanics) ,SHEARING force - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2016
- Full Text
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11. Reply to the discussion by Mesri on "Viscous behaviour of St-Roch-de-l'Achigan clay, Quebec".
- Author
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Marques, Maria Esther Soares, Leroueil, Serge, and De Almeida, Márcio de Souza
- Subjects
CLAY ,STRAINS & stresses (Mechanics) ,TEMPERATURE ,SHEAR strength of soils ,SOIL mechanics - Abstract
Presents a reply to professor Gholamreza Mesri's discussion of a paper on the combined effects of strain rate and temperature on the behaviour of St-Roch-de-l'Achigan clay. Aspects that were discussed in the paper; Question on the analysis of the test results on preconsolidation pressure; Description of the linear relationship between the logarithm of preconsolidation pressure and the logarithm of strain rate.
- Published
- 2005
- Full Text
- View/download PDF
12. Undrained stability of a circular tunnel where the shear strength increases linearly with depth.
- Author
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Wilson, Daniel W., Abbo, Andrew J., Sloan, Scott W., and Lyamin, Andrei V.
- Subjects
SHEAR (Mechanics) ,STABILITY (Mechanics) ,TUNNELS ,FINITE element method ,STRENGTH of materials ,PLASTIC analysis (Engineering) ,CLAY ,STRAINS & stresses (Mechanics) - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2011
- Full Text
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13. Numerical simulations of stone column installation.
- Author
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Castro, Jorge and Karstunen, Minna
- Subjects
COMPUTER simulation ,STONE ,ANISOTROPY ,CLAY ,SOIL permeability ,STRAINS & stresses (Mechanics) ,SOIL mechanics - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
- Full Text
- View/download PDF
14. Undrained shear strengths of clay around an advancing cone.
- Author
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Su, Shi-Fon
- Subjects
SHEAR strength of soils ,CLAY ,ANISOTROPY ,STRAINS & stresses (Mechanics) ,SOIL mechanics ,CRYSTALLOGRAPHY - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
- Full Text
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15. Mechanisms of pipe embedment and lateral breakout on soft clay.
- Author
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White, D. J., Gaudin, C., and Dingle, H. R.C.
- Subjects
PIPE ,CLAY ,OFFSHORE structures ,HYDRAULIC engineering ,STRAINS & stresses (Mechanics) - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2008
- Full Text
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16. Evaluation of the transitional inelastic behaviour of unsaturated clay–sand mixtures.
- Author
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Blatz, James, Anderson, David E. S., and Siemens, Greg
- Subjects
CLAY ,SAND ,BENTONITE ,STRAINS & stresses (Mechanics) ,ALUMINUM silicates - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2007
- Full Text
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17. Short- and long-term sharp cone tests in clay.
- Author
-
Ladanyi, Branko and Longtin, Hugo
- Subjects
FIELD research ,CLAY ,PRESSURE ,STRAINS & stresses (Mechanics) ,MEASUREMENT - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2005
- Full Text
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18. Efficiency of pile groups installed in cohesionless soil using artificial neural networks.
- Author
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Hanna, Adel M., Morcous, George, and Helmy, Mary
- Subjects
SOILS ,CLAY ,ARTIFICIAL neural networks ,AXIAL loads ,STRAINS & stresses (Mechanics) - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2004
- Full Text
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19. An interpretation of structural degradation for three natural clays.
- Author
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Callisto, Luigi and Rampello, Sebastiano
- Subjects
CLAY ,SOILS ,STRAINS & stresses (Mechanics) ,STRUCTURAL analysis (Engineering) ,GEOLOGY - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2004
- Full Text
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20. Viscous behaviour of St-Roch-de-l'Achigan clay, Quebec.
- Author
-
Marques, Maria Esther Soares, Leroueil, Serge, and De Almeida, Márcio de Souza Soares
- Subjects
VISCOSITY ,CLAY ,SOILS ,ROCK mechanics ,STRAINS & stresses (Mechanics) - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2004
- Full Text
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21. An oedometer test study on the preconsolidation stress of glaciomarine clays.
- Author
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Grozic, J L.H, Lunne, T, and Pande, S
- Subjects
CLAY ,STRAINS & stresses (Mechanics) ,SOILS - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2003
- Full Text
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22. A new elastic viscoplastic model for time-dependent behaviour of normally and overconsolidated clays: theory and verification.
- Author
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Yin, Jian-Hua, Zhu, Jun-Gao, and Graham, James
- Subjects
VISCOPLASTICITY ,STRAINS & stresses (Mechanics) ,CLAY ,SOIL consolidation ,SOIL creep - Abstract
This paper presents a new three-dimensional elastic viscoplastic (3D EVP) constitutive model for the time-dependent stress–strain behaviour of both normally consolidated and overconsolidated clays. There are two major new developments in the 3D EVP model: (i) incorporation of a nonlinear creep function with a limit for the creep volume strain under isotropic stressing conditions; (ii) adoption of a new loading surface function with a smooth shape on the π plane. Based on the "equivalent time" concept of Yin and Graham, the formulation of the new 3D EVP model is derived using the new nonlinear creep function and loading surface function. A new approach to determining all model parameters is presented. The 3D EVP model is calibrated using data from one conventional isotropic stress creep test and consolidated-undrained triaxial tests on soft Hong Kong marine deposits (HKMD). The model is verified by comparing model results with those from both normally and overconsolidated triaxial tests on HKMD and a mixture of kaolin and bentonite.Key words: creep, time-dependent, viscoplastic, equivalent time, stress–strain, constitutive model, verification, clay.Cet article présente un nouveau modèle de comportement tridimensionnel élastique visco-plastique (3D EVP) pour étudier le comportement contrainte–déformation en fonction du temps des argiles tant normalement consolidées que surconsolidées. Il y a deux développements majeurs dans le modèle 3D EVP. L'un est l'incorporation d'une fonction de fluage non linéaire avec une limite pour la déformation volumétrique en fluage dans la condition de mise en contraintes isotropes. L'autre est l'adoption d'une nouvelle fonction de chargement de surface avec une forme lisse sur le plan π. Sur la base du concept de « temps équivalent » de Yin et Graham, la formulation du nouveau modèle 3D EVP est dérivée au moyen des nouvelles fonctions, soit la fonction non linéaire de fluage et la fonction de chargement de surface. On présente une nouvelle approche pour déterminer tous les paramètres du modèle. Le modèle 3D EVP est calibré au moyen de données d'un essai conventionnel de fluage sous contraintes isotropes et d'essais triaxiaux consolidés et non drainés sur les dépôts marins mous de Hong Kong (HKMD). Le modèle est vérifié par comparaison des résultats du modèle avec les résultats des essais triaxiaux tant normalement que surconsolidés sur les dépôts de Hong Kong et sur un mélange de kaolin et de bentonite.Mots clés : fluage, dépendance au temps, visco-plastique, temps équivalent, contrainte–déformation, modèle de comportement, vérification, argile.[Traduit par la Rédaction] [ABSTRACT FROM AUTHOR]
- Published
- 2002
- Full Text
- View/download PDF
23. Modeling the viscoplastic behaviour of clays during consolidation: application to Berthierville clay in both laboratory and field conditions.
- Author
-
Kim, Yun Tae and Leroueil, S
- Subjects
VISCOPLASTICITY ,CLAY ,SOIL consolidation ,STRAINS & stresses (Mechanics) - Abstract
To analyze the effects of strain rate and viscoplastic strain on consolidation of natural clay, this paper presents a nonlinear viscoplastic model in which viscoplastic behaviour is modeled by a unique effective stress (σ'[sub v] ) – viscous strain (ℇ[sub v] ) – viscous strain rate (ℇ[sup ·] [sub v] ) relationship. The proposed model can consider the effects of strain rate and viscoplastic strain on consolidation, to take into account the difference in strain rate between laboratory and field conditions, and the combined processes of generation and dissipation of pore pressure during consolidation. This model can also predict the behaviour of clay during stepwise loading, constant rate of strain, and relaxation of effective stress. The predicted values using numerical analysis are compared with measured values in laboratory tests and in situ, under an embankment built on soft clay at Berthierville, Quebec. It is possible to estimate the consolidation behaviour of natural clay with reasonable accuracy using the proposed nonlinear viscoplastic model.Key words: consolidation, soft clay, strain rate, viscoplastic, relaxation.Dans le but d'analyser les effets de la vitesse de déformation et de la déformation viscoplastique sur la consolidation de l'argile naturelle, cet article présente un modèle viscoplastique non linéaire dans lequel le comportement est modélisé par une relation unique contrainte effective-déformation visqueuse-vitesse de déformation visqueuse σ'[sub v] – ℇ[sub v] – ℇ[sup ·] [sub v] . Le modèle proposé peut prendre en considération les effets de la vitesse de déformation et de la déformation viscoplastique sur la consolidation pour tenir compte de la différence dans les vitesses de déformation entre les conditions en laboratoire et sur le chantier, de même que les processus combinés de génération et de dissipation de la pression interstitielle durant la consolidation. Ce modèle peut aussi prédire le comportement de l'argile en incluant le chargement par étape, la vitesse de déformation constante, et la relaxation de la contrainte effective. Les valeurs prédites au moyen de l'analyse numérique sont comparées avec celles mesurées dans les essais en laboratoire et in situ sous un remblai construit sur de l'argile molle à Berthierville, Québec. Il est possible d'estimer le comportement en consolidation de l'argile naturelle avec une précision raisonnable au moyen du modèle viscoplastique non linéaire proposé. Mots clés : consolidation, argile molle, vitesse de déformation, viscoplastique, relaxation.[Traduit par la Rédaction] [ABSTRACT FROM AUTHOR]
- Published
- 2001
- Full Text
- View/download PDF
24. Stress distributions and paths in clays during pressuremeter tests.
- Author
-
Silvestri, V and Diab, R
- Subjects
STRESS concentration ,CLAY ,STRAINS & stresses (Mechanics) ,PRESSURE measurement ,TESTING equipment - Abstract
This paper presents a novel analysis for the interpretation of pressuremeter tests in clay. No prior knowledge of the constitutive properties of the material is required. Shear, radial, and tangential stresses are determined at various distances from the probe and for different levels of cavity strain. Total and effective stress paths followed by material elements within the deformed soil are represented on shear stress – normal stress diagrams. The analysis is applied to the interpretation of pressuremeter tests carried out in both the field and the laboratory.Key words: pressuremeter tests, clays, novel analysis, stress–strain curves, stress distributions, stress paths.Cet article présente une nouvelle méthode d'interprétation d'essais pressiométriques dans l'argile. Aucune connaissance préalable des propriétés constitutives du matériau n'est requise. Les contraintes de cisaillement, radiales et tangentielles sont déterminées à diverses distances de la sonde et pour différents niveaux de déformation. Les cheminements de contraintes totales et effectives suivis par des éléments de sol sont représentés sur des graphiques de type Mohr–Coulomb. L'analyse proposée est appliquée à l'interprétation d'essais pressiométriques effectués in situ et au laboratoire.Mots clés : essais pressiométriques, argiles, nouvelle méthode, courbes contrainte–déformation, distributions et cheminements de contraintes. [ABSTRACT FROM AUTHOR]
- Published
- 2001
- Full Text
- View/download PDF
25. Modified Cam-Clay modelling of temperature effects in clays.
- Author
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Graham, J, Tanaka, N, Crilly, T, and Alfaro, M
- Subjects
CLAY ,MODELING (Sculpture) ,TEMPERATURE effect ,STRAINS & stresses (Mechanics) ,BENTONITE - Abstract
The Cam-Clay model for isothermal mechanical behaviour of clays has been extended to take account of the effects of temperature on stress–strain behaviour. The assumptions used in constructing the new model are based on published results and on new data presented in the paper. The model allows prediction of how heating and cooling affect volume changes, pore-water pressures, and strengths for both normally consolidated and overconsolidated saturated clays. It permits modelling of observed reductions in the overconsolidation ratio with increasing temperature. The model provides accessible qualitative explanations for temperature effects that were previously difficult to understand. It will also allow easy implementation for quantitative modelling in triaxial stress fields. Results predicted by the model are compared with data collected by the authors at temperatures up to 100°C. The model does not account for changes that occur in clay minerals at higher temperatures, for example, in bentonites at temperatures higher than about 150°C.Key words: clay, triaxial, temperature, modelling, elastic–plastic, Cam-Clay.Le modèle Cam-clay pour le comportement mécanique isothermique a été élargi pour prendre en compte les effets de la température sur le comportement contrainte–déformation. Les hypothèses utilisées pour construire le nouveau modèle sont basées sur des résultats publiés et sur de nouvelles données présentées dans l'article. Le modèle permet de prédire comment le réchauffement et le refroidissement affectent les changements de volume, les pression interstitielles, et les résistances dans les argiles saturées tant normalement consolidées que surconsolidées. Il permet de modéliser les réductions observées du rapport de surconsolidation avec l'accroissement de la température. Le modèle fournit des explications qualitatives à la portée de tous pour les effets de température qui étaient antérieurement difficiles à comprendre. Il va aussi permettre la réalisation facile de modélisations quantitatives dans des champs de contraintes triaxiales. Les résultats prédits par le modèle sont comparés aux données colligées par les auteurs à des températures atteignant 100°C. Le modèle ne tient pas compte des changements qui se produisent dans les minéraux argileux aux températures plus élevées, comme par exemple dans la bentonites à des températures plus élevées que 150°C.Mots clés : argile, triaxial, température, modélisation, élastique–plastique, Cam-clay.[Traduit par la Rédaction] [ABSTRACT FROM AUTHOR]
- Published
- 2001
- Full Text
- View/download PDF
26. Discussion of "An oedometer test study on the preconsolidation stress of glaciomarine clays".
- Author
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Clementino, Renato V.
- Subjects
CLAY ,SHEAR strength of soils ,SHEAR (Mechanics) ,SOIL mechanics ,STRAINS & stresses (Mechanics) - Abstract
Discusses an article on an oedometer test study of the preconsolidation stress in glaciomarine clays. Advantages of the proposed Pacheco Silva method of determining preconsolidation stress; Description of how the preconsolidation stress is determined graphically from oedometer test data; Results of the assessment of the preconsolidation stress using the Pacheco Silva approach.
- Published
- 2005
- Full Text
- View/download PDF
27. Reply to the discussion by Clementino on "An oedometer test study on the preconsolidation stress of glaciomarine clays".
- Author
-
Grozic, J. L. H., Lunne, T., and Pande, S.
- Subjects
STRAINS & stresses (Mechanics) ,SHEAR strength of soils ,SOIL mechanics ,CLAY ,SOIL liquefaction - Abstract
Presents a reply to Renato Clementino's discussion of a paper on an oedometer test study of the preconsolidation stress in glaciomarine clays. Advantages of the proposed Pacheco Silva method of determining preconsolidation stress; Results of the application of the method to reconstituted laboratory samples; Estimation of preconsolidation stress using the Pacheco Silva method for the oedometer verification tests.
- Published
- 2005
- Full Text
- View/download PDF
28. Common characteristics between cyclic behaviours at different frequencies and monotonic behaviours of clay.
- Author
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Wu, Tingyu, Tong, Junhao, Sun, Honglei, Yuan, Zonghao, and Guo, Lin
- Subjects
CLAY soils ,CLAY ,CYCLIC loads ,STRAIN rate ,STRAINS & stresses (Mechanics) ,SILT - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
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29. Low-strain dynamic characterization of undisturbed Leda clay.
- Author
-
Irfan, Muhammad, Cascante, Giovanni, Basu, Dipanjan, and LeBoeuf, Denis
- Subjects
FRICTION velocity ,STRAINS & stresses (Mechanics) ,SHEAR waves ,SOIL testing ,VELOCITY measurements ,CLAY - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
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30. Analytical stress–strain relation for soils.
- Author
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Krabbenhøft, K. and Wang, J.
- Subjects
STRAINS & stresses (Mechanics) ,SOILS ,SOIL testing ,CLAY - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
- View/download PDF
31. Relationship between monotonic and cyclic behavior of saturated soft clay in undrained triaxial compression tests.
- Author
-
Wu, Tingyu, Han, Jie, Cai, Yuanqiang, Guo, Lin, and Wang, Jun
- Subjects
CLAY ,SILT ,CYCLIC loads ,SOIL mechanics ,STRAINS & stresses (Mechanics) - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2021
- Full Text
- View/download PDF
32. Failure in anisotropic sensitive clays: finite element study of Perniö failure test.
- Author
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D'Ignazio, Marco, Länsivaara, Tim Tapani, and Jostad, Hans Petter
- Subjects
ANISOTROPY ,CLAY ,STRAINS & stresses (Mechanics) ,FINITE element method ,MECHANICAL failures - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2017
- Full Text
- View/download PDF
33. Thermal conductivity of geosynthetic clay liners.
- Author
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Ali, Mohammad Asgar, Bouazza, Abdelmalek, Singh, Rao Martand, Gates, Will P., and Rowe, R. Kerry
- Subjects
THERMAL conductivity ,SANITARY landfill linings ,CLAY ,GRAVIMETRIC analysis ,STRAINS & stresses (Mechanics) ,BENTONITE ,GEOTEXTILES ,WATER distribution - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2016
- Full Text
- View/download PDF
34. Long-term effect of potassium chloride treatment on improving the soil behavior of highly sensitive clay - Ulvensplitten, Norway.
- Author
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Helle, Tonje Eide, Nordal, Steinar, Aagaard, Per, and Lied, Ole Kristian
- Subjects
POTASSIUM chloride ,SOIL science ,CLAY ,STRAINS & stresses (Mechanics) ,MECHANICAL behavior of materials - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2016
- Full Text
- View/download PDF
35. Drying-induced shrinkage of Boom clay: an experimental investigation.
- Author
-
Prime, Noémie, Levasseur, Séverine, Miny, Laurent, Charlier, Robert, Léonard, Angélique, and Collin, Frédéric
- Subjects
CLAY ,DRYING ,STRAINS & stresses (Mechanics) ,RADIOACTIVE wastes ,DEFORMATION of surfaces - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2016
- Full Text
- View/download PDF
36. Compressibility of deep clay in East China subjected to a wide range of consolidation stresses.
- Author
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Shang, X.-Y., Zhou, G.-Q., Kuang, L.-F., and Cai, W.
- Subjects
STRAINS & stresses (Mechanics) ,COMPRESSION loads ,OEDOMETERS (Soil mechanics) ,SOIL consolidation test ,SOIL mechanics ,CLAY - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2015
- Full Text
- View/download PDF
37. Effect of sample disturbance on triaxial and oedometer behaviour of a stiff and heavily overconsolidated clay.
- Author
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Berre, Toralv
- Subjects
OEDOMETERS (Soil mechanics) ,CLAY ,STRAINS & stresses (Mechanics) ,SHEAR strength of soils ,SWELLING soils ,ISOTROPIC properties ,SOIL mechanics - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2014
- Full Text
- View/download PDF
38. Laboratory study on radial consolidation and deformation in clay reinforced with stone columns.
- Author
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Cimentada, Ana, Da Costa, Almudena, Cañizal, Jorge, and Sagaseta, César
- Subjects
CLAY ,DEFORMATION of surfaces ,SOIL testing ,STRAINS & stresses (Mechanics) ,GEOMETRY ,ENERGY dissipation ,SOIL chemistry - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2011
- Full Text
- View/download PDF
39. Characterization of Norwegian marine clays with combined shear wave velocity and piezocone cone penetration test (CPTU) data.
- Author
-
Long, Michael and Donohue, Shane
- Subjects
CLAY ,DATABASES ,SHEAR waves ,SOIL classification ,CHARTS, diagrams, etc. ,STRAINS & stresses (Mechanics) - Abstract
A database of research-quality piezocone cone penetration test (CPTU) and shear wave velocity, V
s , information for Norwegian marine clays has been assembled to study the small-strain stiffness relationships for these materials and to examine the potential use of CPTU and Vs data in combination for the purposes of characterizing these soils. Data for sites where high-quality block sampling was carried out have mostly been used. Improvements have been suggested to existing correlations between the small-strain shear modulus, Gmax , or Vs and index properties for these soils. Recent research has shown that CPTU corrected cone tip resistance, qt , and especially the pore pressure measured during CPTUs, u2 , and Vs can be measured reliably and repeatably and are not operator or equipment dependant. Therefore, a new soil classification chart involving the normalized cone resistance, Qt , and normalized shear wave velocity, Vs1 , or Vs1 and Δu/[IMG] (where u is the pore-water pressure and [IMG] is the in situ vertical effective stress) is presented. Using this chart it is possible to clearly distinguish between clays of different overconsolidation ratios (OCRs). Une base de données contenant des informations sur l’essai de pénétration au cône (CPTU) et la vitesse des ondes de cisaillement (Vs ), pour des argiles marines en Norvège, a été assemblée dans le but d’étudier les relations entre les déformations faibles et la rigidité pour ces matériaux. Les données de CPTU et de Vs pourraient aussi être combinées afin de caractériser ces sols. Les données utilisées proviennent généralement de sites où de l’échantillonnage en bloc de haute qualité a été effectué. L’article suggère des améliorations aux relations existantes entre le module de cisaillement à faible déformations (Gmax ) ou Vs et les propriétés de ces sols. Des recherches récentes ont démontré que la résistance corrigée à la pointe du cône (qt ) des CPTU et particulièrement la pression interstitielle mesurée durant les CPTU (u2 ) et Vs peuvent être mesurés de façon fiable et reproductible et ne dépendent ni de l’opérateur et ni de l’équipement. Une nouvelle charte de classification des sols avec la résistance normalisée du cône (Qt ) et la vitesse normalisée des ondes de cisaillement (Vs1 ) ou Vs1 et Δu/[IMG] (où u est la pression interstitielle et [IMG] est la contrainte effective verticale in situ) est présentée. Cette charte permet de distinguer clairement les argiles ayant un ratio de surconsolidation (ORC) différent. [ABSTRACT FROM AUTHOR]- Published
- 2010
- Full Text
- View/download PDF
40. Quantification of the effects of structure on the compression of a stiff clay.
- Author
-
Gasparre, A. and Coop, M. R.
- Subjects
SOIL-structure interaction ,CLAY ,COLLOIDS ,STRUCTURAL dynamics ,MATERIALS compression testing ,STRAINS & stresses (Mechanics) - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2008
- Full Text
- View/download PDF
41. Effects of waste glass additions on the properties and durability of fired clay brick.
- Author
-
Chidiac, S. E. and Federico, L. M.
- Subjects
BRICKS ,FIREBRICK ,STRENGTH of materials ,WASTE management ,STRAINS & stresses (Mechanics) ,GLASS waste ,MICROSTRUCTURE ,CONSTRUCTION materials ,MICROMECHANICS ,CONSTRUCTION industry - Abstract
Copyright of Canadian Journal of Civil Engineering is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2007
- Full Text
- View/download PDF
42. Potential improvements of design parameters by taking block samples of soft marine Norwegian clays.
- Author
-
Berre, Toralv, Lunne, Tom, Andersen, Knut H., Strandvik, Stein, and Sjursen, Morten
- Subjects
SHEAR (Mechanics) ,CLAY ,STRAINS & stresses (Mechanics) ,STRENGTH of materials ,MATERIAL fatigue ,ODOMETERS - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2007
- Full Text
- View/download PDF
43. In situ shear wave velocity from multichannel analysis of surface waves (MASW) tests at eight Norwegian research sites.
- Author
-
Long, Michael and Donohue, Shane
- Subjects
CLAY ,SHEAR waves ,ELASTIC waves ,RELIABILITY in engineering ,STRAINS & stresses (Mechanics) ,SYSTEMS engineering - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2007
- Full Text
- View/download PDF
44. Effects of sample disturbance and consolidation procedures on measured shear strength of soft marine Norwegian clays.
- Author
-
Lunne, Tom, Berre, Toralv, Andersen, Knut H., Strandvik, Stein, and Sjursen, Morten
- Subjects
STRAINS & stresses (Mechanics) ,SOIL mechanics ,CLAY ,STRENGTH of materials ,ENGINEERING design - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2006
- Full Text
- View/download PDF
45. Shear strength characteristics of an unsaturated expansive clay.
- Author
-
Zhan, Tony L. T. and Ng, Charles W. W.
- Subjects
STRENGTH of materials ,CLAY ,SOIL mechanics ,EARTHWORK ,STRAINS & stresses (Mechanics) - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2006
- Full Text
- View/download PDF
46. Interpretation and modelling of deformation characteristics of a stiff North Sea clay.
- Author
-
Jovičič, Vojkan, Coop, Matthew, and Simpson, Brian
- Subjects
CLAY ,SOIL testing ,STRAINS & stresses (Mechanics) ,SHEAR strength of soils ,SOIL mechanics ,SHEAR (Mechanics) - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2006
- Full Text
- View/download PDF
47. Long-term monitoring of SIDD Type IV installations.
- Author
-
Wong, Lui S., Allouche, Erez N., Dhar, Ashutosh S., Baumert, Michael, and Moore, Ian D.
- Subjects
SOILS ,STRAINS & stresses (Mechanics) ,CLAY ,STANDARDS ,MEASUREMENT - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2006
- Full Text
- View/download PDF
48. A laboratory study of normally consolidated kaolin clay.
- Author
-
Prashant, Amit and Penumadu, Dayakar
- Subjects
KAOLIN ,CLAY ,STRAINS & stresses (Mechanics) ,MECHANICS (Physics) ,PRESSURE ,TESTING - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2005
- Full Text
- View/download PDF
49. Interaction mechanism between deep mixing column and surrounding clay during installation.
- Author
-
Shui-Long Shen, Miura, Norihiko, and Koga, Hirofumi
- Subjects
CLAY ,PRESSURE ,STRAINS & stresses (Mechanics) - Abstract
Proposes a simple approach to calculate the excess pore pressure around a deep mixed (DM) column during installation. Analysis of clay fracturing around a DM column; Forces acting on the surrounding clay; Investigation on the stress change around DM column during installation
- Published
- 2003
- Full Text
- View/download PDF
50. Behaviour of the stiff and sensitive Saint-Jean-Vianney clay in intact, destructured, and remoulded conditions.
- Author
-
Saihi, Faten, Leroueil, Serge, Rochelle, Pierre La, and French, Ivan
- Subjects
CLAY ,SOILS ,SEDIMENTS ,SHEAR (Mechanics) ,STRAINS & stresses (Mechanics) - Abstract
The role of the degree of microstructure on the behaviour of clayey soils has been the focus of many studies. However, none so far have quantified the evolution of the shear strength parameters for a given soil for degrees of microstructure going from an intact condition to complete remoulding. In the present study, a series of compression triaxial tests have been performed on specimens of the naturally highly structured Saint-Jean-Vianney clay under the following conditions: intact, destructured by straining outside the limit state curve, and reconstituted and reconsolidated after complete remoulding. The results show that the limit state curve is influenced by the level of destructuration reached before testing, and moreover, that the shear strength parameters at large deformation are influenced by the level of destructuration at the beginning of the test. The compression tests infer that the soil seems to retain the memory of its initial microstructure, at least for consolidation volumetric strains up to 14%. The observed behaviour has implications for the understanding and modelling of natural clays; it also explains to some extent the difference in strength parameters used in stability analyses of embankments on soft clays and natural slopes in clay.Key words: clay, microstructure, destructuration, shear strength, large deformation shear strength, triaxial test.Le rôle de la microstructure dans le comportement d'un sol argileux a fait l'objet de nombreuses études. Cependant, aucune d'entre elles jusqu'à maintenant n'a quantifié l'évolution des paramètres de résistance au cisaillement pour un sol donné avec un niveau de déstructuration variant de l'état intact au remaniement complet. Dans la présente étude, une série d'essais de compression triaxiale ont été réalisés sur des échantillons de l'argile de Saint-Jean-Vianney, reconnue comme étant fortement structurée, dans les différents états suivants : intact, déstructuré par compression volumétrique en dehors de la courbe d'état limite, et reconstitué et reconsolidé après remaniement complet. Les résultats montrent, comme l'on pouvait s'y attendre, que la courbe d'état limite est affectée par le niveau de déstructuration avant l'essai, et que de plus, les paramètres de résistance au cisaillement à grande déformation sont influencés par le niveau de déstructuration au début de l'essai. Les essais de compression indiquent que le sol semble conserver la mémoire de sa microstructure intiale après déstructuration par compression volumétrique jusqu'à 14 % de déformation. Le comportement observé a des implications sur la compréhension et la modélisation des argiles naturelles ; il explique aussi, d'une certaine manière, la différence entre les paramètres de résistance utilisés dans les analyses de stabilité des remblais sur argiles molles et des pentes naturelles dans les dépôts argileux.Mots clés : argile, microstructure, déstructuration, résistance au cisaillement, résistance à grande déformation, essai triaxial. [ABSTRACT FROM AUTHOR]
- Published
- 2002
- Full Text
- View/download PDF
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