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2. A two-dimensional effective stress framework for modelling whole-life soil strength changes due to pore pressure generation and dissipation, Part 1: Formulation.
- Author
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Wang, Y., O'Loughlin, C. D., Zhou, Z., and Gaudin, C.
- Abstract
The undrained shear strength of contractive fine-grained soils changes with time, reducing due to pore pressure generation and increasing during consolidation. There is an increasing appetite to recognise these temporal soil strength changes in offshore geotechnical design, as it provides a basis for potentially less conservative designs. Contributions to this endeavour are reported across two companion papers. This first paper extends an existing effective stress framework that relates the generation of pore pressure to accumulated plastic shear strain, allowing undrained shear strength to be calculated within the context of critical-state soil mechanics. The main development is the extension of the computational domain to two dimensions, allowing calculations to be made for boundary value problems that cannot be satisfactorily simplified to one-dimensional conditions. The magnitude and distribution of accumulated shear strain surrounding objects buried in soil are quantified through a series of large deformation finite element analyses. These spatial distributions are described using a strain influence function in the new 2D framework to calculate the extent and magnitude of excess pore pressure, and in turn the mobilised soil strength around the buried object. The performance of the 2D framework is examined in the companion paper through retrospective simulations of experimental and numerical data. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
3. Undrained capacity of circular shallow foundations on two-layer clays under combined VHMT loading.
- Author
-
He, Pengpeng and Newson, Tim
- Subjects
SHALLOW foundations ,BEARING capacity of soils ,FATIGUE limit ,FINITE element method ,CLAY ,SHEAR strength - 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
4. Consolidation-induced improvements in plate anchor capacity.
- Author
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Wang, C., O'Loughlin, C.D., Bransby, M., Watson, P., and Zhou, Z.
- Subjects
HYPERBOLIC functions ,ANCHORS ,SHEAR strength of soils ,LEAD in soils ,MODELS & modelmaking ,SOIL-structure interaction - Abstract
Plate anchors are an attractive technology for mooring floating facilities; as relative to piles, suction caissons, and drag anchors, they provide a much higher capacity relative to their mass. Plate anchors may experience an extreme loading event that will cause geotechnical failure, although they will still retain a residual capacity. The displacement associated with bringing the anchor to failure will induce excess pore pressures that initially reduce soil strength but will dissipate over time, leading to regains in soil strength and hence anchor capacity. This paper considers the time scales and magnitude of this anchor capacity regain through a series of model scale experiments conducted in a geotechnical centrifuge. The experiments involved vertical loading of pre-embedded horizontally orientated circular anchors in normally consolidated kaolin clay. The results show that anchor capacity regain is a function of consolidation time and the level of resistance maintained on the anchor, with the longest consolidation time and highest maintained resistance leading to a capacity regain of approximately 60%. These capacity increases are described here using a simple hyperbolic function, which provides a basis for estimating the time needed for the residual anchor capacity to regain sufficient capacity following a movement event. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
5. Limit equilibrium solutions to anti-overturning bearing capacity of suction caissons in uniform and linearly increasing strength clays.
- Author
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Wu, Yuqi, Yang, Qing, Li, Dayong, and Zhang, Yu
- Subjects
BEARING capacity of soils ,CAISSONS ,FINITE element method ,CLAY ,TORQUE ,EQUILIBRIUM - 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
6. Undrained cyclic loading behavior of stiff Eocene-to-Jurassic plastic, high-OCR clays.
- Author
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Pan, K., Zhou, G.Y., Yang, Z.X., and Jardine, R.J.
- Subjects
CYCLIC loads ,EOCENE Epoch ,CLAY ,SOIL classification ,INFRASTRUCTURE (Economics) - Abstract
Assessing foundation response to cyclic loading is vital when designing transport infrastructure, such as road pavements and rail tracks, as well as offshore, port, and tall tower structures. While detailed guidance is available on characterizing many soil types' cyclic behavior, relatively few studies have been reported on stiff, geologically aged, plastic clays. This paper addresses this gap in knowledge by reporting cyclic loading experiments on three natural stiff UK clays that were deposited and buried between the Jurassic Age and Eocene Epoch before geological unloading to their currently heavily over-consolidated states. High-quality samples taken at relatively shallow depths were reconsolidated to nominally in situ K
0 stresses in triaxial and hollow cylinder apparatus before imposing cyclic loading. The completely stable, metastable, or unstable outcomes invoked by different levels of undrained cyclic loading are interpreted within a kinematic yielding framework that is compatible with monotonic control experiments' outcomes. The cyclic limits marking the onset of significant changes in permanent strain accumulation, pore pressure development, and stress–strain hysteresis demonstrate that the weathered Gault clay offers the lowest cyclic resistance. The experiments show that energy considerations provide a promising way of evaluating undrained pore pressure generation and stiffness degradation. They also provide a basis for developing cyclic constitutive models and analysis procedures for cyclic foundation design in stiff, high-OCR, plastic clay strata. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
7. 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
8. Influence of a rigid cap on thermo-mechanical behavior of nonsymmetrical thermally loaded energy pile group in clay.
- Author
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Zhang, Dingxin, Wang, Chenglong, Bouazza, Abdelmalek, Ding, Xuanming, and Kong, Gangqiang
- Subjects
MECHANICAL loads ,AXIAL loads ,LATERAL loads ,THERMOCYCLING ,CLAY ,ENERGY transfer - Abstract
This paper presents the results of a series of cyclic nonsymmetrical thermally loaded model-scale tests conducted on floating pile groups, with and without a rigid cap in saturated clay. The energy pile in each group was subjected to 10 two-way (heating–cooling) thermal cycles with an amplitude of 15 °C to investigate the potential effects of a rigid cap on the thermomechanical behavior of energy pile groups. It was found that the rigid cap restrained the expansion/contraction of the energy pile in response to temperature change and reduced its irreversible settlement, resulting in a lower differential settlement between the energy and nonenergy piles. Consequently, a lower tilting was observed in the pile group with a rigid cap. In addition, the thermally induced axial load was significantly increased (especially in cooling mode) due to the restriction of a rigid cap. The thermomechanical load transfer profile of the energy pile was also affected by it, resulting in the downward transmission of shaft resistance. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
9. Investigation of soil setup effects on pile response in clay considering overconsolidation ratio and installation method through physical modeling.
- Author
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Fakharian, Kazem, Shafiei, Morteza, and Hafezan, Salar
- Subjects
PILES & pile driving ,CLAY soils ,SOILS ,DEAD loads (Mechanics) ,CLAY - Abstract
The main objective of this paper is investigation of clayey soil setup effects on axial "resistance" and "stiffness" of small-scale piles with special attention on "overconsolidation ratio" (OCR) and "installation method". A consolidation chamber is developed and an instrumented model pile is either driven or jacked-in through saturated consolidated Kaolinite clay at different OCRs of 1.2 (normally consolidated, NC) and 4.8 (over consolidated, OC). The pile was static load tested at different time intervals of 1 h through 90 days. Higher pore pressures are induced during pile installation in NC compared to OC clay. The frictional resistance of OC soil is higher than NC at end of drive as well as end of setup in both driven and jacked-in piles. The frictional resistance of jacked-in piles is greater than driven piles at end of drive, but due to higher rate of setup, the long-term frictional resistance of driven piles is shown to be greater, attributed to more disturbance of the soil during installation of driven piles. Attempts are made to differentiate between the contributions of dissipation of excess pore pressure and non-pore pressure components for each consolidation condition and pile installation method. A relation is proposed to quantify the pile stiffness variations over time due to soil setup. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
10. MSD applied to the construction of the British Library basement: a multi-stage excavation in London Clay.
- Author
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Crispin, Jamie J., Bateman, Abigail H., Voyagaki, Elia, Campbell, Alexandra, Mylonakis, George, Bolton, Malcolm D., and Vardanega, Paul J.
- Subjects
LIBRARY design & construction ,EXCAVATION ,SINGLE-degree-of-freedom systems ,CLAY ,FINITE element method - Abstract
This note presents the application of the mobilisable strength design (MSD) method to the monitoring results of the multi-propped excavation in the south area of the British Library Euston, constructed in a highly overconsolidated stiff clay deposit. The MSD method is an energy-based approach (a nonlinear finite-element method for a single-degree-of-freedom soil-wall system) introduced to develop a simplified design methodology that satisfies both ultimate and serviceability limit states. Wall displacement predictions based on the MSD method are compared with considerable field monitoring data. The sensitivity of the method to reasonable variations in input parameters is considered. A spreadsheet and python code demonstrating the MSD analysis from this paper are provided in the online supplement alongside details of the mathematical formulation. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
11. Suffusion of sand–clay mixture by three-staged change of ionic strength.
- Author
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Won, Jongmuk, Kim, Taehyeong, Kang, Minkyu, Choe, Yongjoon, and Choi, Hangseok
- Subjects
IONIC strength ,SOIL classification ,HYDRAULIC conductivity ,SURFACE interactions ,ILLITE ,CLAY ,MONTMORILLONITE ,MIXTURES - 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
12. Negative creep of soils.
- Author
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Yao, Yang-Ping and Fang, Yu-Fei
- Subjects
SOIL creep ,STRAIN rate ,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
- 2020
- Full Text
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13. An optimization strategy for evaluating modified Cam clay parameters using self-boring pressuremeter test data.
- Author
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Gaone, F.M., Doherty, J.P., and Gourvenec, S.
- Subjects
CLAY ,BEARING capacity of soils ,FOCUS groups ,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
- 2019
- Full Text
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14. Delayed response of excavations in structured clays.
- Author
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Bertoldo, Fabiano and Callisto, Luigi
- Subjects
CLAY ,FINITE element method ,EXCAVATION ,NUMERICAL analysis - 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
- 2019
- Full Text
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15. Spatial variability of one-parameter model of soil water characteristic curve at field scale in black soil region of northeast China.
- Author
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Li, Jizhen, Liu, Jilong, Zhang, Lingling, Xu, Qing, Fu, Qiang, Wu, Yaoyu, Chen, Junfeng, Lv, Hang, and Idimesheva, Olga
- Subjects
SOIL moisture ,BLACK cotton soil ,SILT ,CLAY ,SOILS ,COLLOIDS - Abstract
The soil water characteristic curve (SWCC) is an important parameter for simulating soil water movement and solute transport, and has obvious spatial variability. The models fitting the SWCC generally contain two or more parameters, which makes the spatial variability of the soil water characteristic curve difficult to express. This paper established a one-parameter model of the soil water characteristic curve based on the Gardner model and analyzed its spatial variability with multifractal and joint multifractal methods. Parameter B in the one-parameter model had moderate variation. The local information leading to spatial variability of parameter B in the top soil layer (0–15 cm) and deep soil layer (15–20 cm) was its low values and high values, respectively. At the single scale, spatial variability of parameter B was mainly caused by the bulk density and clay content in the 0–5 cm soil layer, and by the bulk density and sand content in the 5–10, 10–15, and 15–20 cm soil layers. At the multiscale, the most obvious two factors that led to spatial variability of parameter B were the bulk density and silt content in the 0–5 cm soil layer, bulk density and sand content in the 5–10 cm soil layer, and bulk density and clay content in the 10–15 and 15–20 cm soil layers, respectively. The relationships between parameter B and soil properties had scale dependence. La courbe des caractéristiques de l'eau du sol joue un rôle important dans la simulation des déplacements de l'eau dans le sol et du transport des solutés. Or, de toute évidence, ce paramètre varie dans l'espace. En général, les modèles qui ajustent cette courbe intègrent deux ou plusieurs paramètres, de sorte qu'il est plus compliqué d'en exprimer la variabilité spatiale. Les auteurs ont créé un modèle à un paramètre de la courbe des caractéristiques de l'eau du sol en s'inspirant du modèle de Gardner, puis ils en ont analysé la variabilité dans l'espace par des méthodes multifractales simples ou combinées. Le paramètre B du modèle à un paramètre varie de façon moyenne. Les données locales à l'origine de la variabilité spatiale de ce paramètre ont des valeurs faibles dans la couche de sol superficielle (0–15 cm) et des valeurs élevées dans la couche profonde (15–20 cm). Sur une échelle unique, cette variabilité résulte surtout de la masse volumique apparente et de la teneur en argile dans la couche de 0 à 5 cm ou de la masse volumique apparente et de la teneur en sable dans les couches de 5 à 10 cm, de 10 à 15 cm et de 15 à 20 cm. Sur une échelle multiple, les deux facteurs les plus évidents à l'origine de la variabilité du paramètre B dans l'espace sont la masse volumique apparente et la teneur en limon dans la couche de 0 à 5 cm, la masse volumique apparente et la teneur en sable dans celle de 5 à 10 cm ou la masse volumique apparente et la teneur en argile dans les couches de 10 à 15 cm et de 15 à 20 cm. Les liens entre le paramètre B et les propriétés du sol présentent donc une dépendance avec l'échelle. [Traduit par la Rédaction] [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
16. 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
17. Influence of stress history on undrained cyclic shear strength evolution.
- Author
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Sahdi, Fauzan, Tom, Joe, Hou, Zhechen, Bransby, Fraser, Gaudin, Christophe, and Watson, Phillip
- Subjects
SHEAR strength ,KAOLIN ,SOIL densification ,CYCLIC loads ,OCEAN bottom ,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
18. Effect of perforations on the bearing capacity of shallow foundation on clay.
- Author
-
Liu, Run, Liu, Meng-meng, Tian, Ying-hui, and Wu, Xinli
- Subjects
SHALLOW foundations ,FINITE element method ,BEARING capacity of soils ,CLAY ,SHEAR strength of 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
- 2019
- Full Text
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19. Simplified analysis of chord and brace effects on jack-up leg penetration for preloading in soft clay.
- Author
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Aagesen, R., Dean, E.T.R., Lee, F.H., and Li, Y.P.
- Subjects
JACKUP rigs ,CLAY ,SUBMARINE topography ,SOIL mechanics ,CENTRIFUGES - 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
20. Model tests on biogrouted granular columns in soft soil.
- Author
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Mahawish, Aamir, Bouazza, Abdelmalek, and Gates, Will P.
- Subjects
KAOLIN ,SOILS ,UNIT cell ,SCANNING electron microscopy ,CALCIUM carbonate ,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
- 2021
- Full Text
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21. Experimental investigation and constitutive modeling of the behaviour of highly plastic Lower Rhine clay under monotonic and cyclic loading.
- Author
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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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22. Anisotropic borehole response from pressuremeter testing in deep clay shale formations.
- Author
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Liu, Lang, Chalaturnyk, Rick, Deisman, Nathan, and Zambrano-Narvaez, Gonzalo
- Subjects
CLAY ,DISPLACEMENT (Mechanics) ,MODULUS of rigidity ,BOREHOLES ,ANISOTROPY ,SHALE ,AZIMUTH - 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
23. Correlations among some clay parameters -- the multivariate distribution.
- Author
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Jianye Ching and Kok-Kwang Phoon
- Subjects
CLAY ,MULTIVARIATE analysis ,DISTRIBUTION (Probability theory) ,DATA analysis ,STATISTICAL correlation ,GEOTECHNICAL engineering ,MATERIAL plasticity ,SHEAR strength - 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
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24. Tensile response and fracturing process in moderate- and high-plasticity clays.
- Author
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Forlati, Giulia and Shepley, Paul
- Subjects
CLAY soils ,CLAY ,CRACK propagation (Fracture mechanics) ,KAOLIN ,FRACTURE mechanics ,TENSILE tests - 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
25. Experimental measurement of monotonic and cyclic lateral resistance of risers and pipelines in Gulf of Mexico clays.
- Author
-
Al-Janabi, Husham A., Aubeny, Charles P., Chen, Jinbo, and Luo, Meng
- Subjects
PIPELINES ,RISER pipe ,FATIGUE life ,CYCLIC loads ,CLAY ,MOTIVATION (Psychology) ,BAYS - 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
- 2020
- Full Text
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26. Semi-empirical elastic-thermoviscoplastic model for clay.
- Author
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Kurz, David, Sharma, Jitendra, Alfaro, Marolo, and Graham, Jim
- Subjects
VISCOPLASTICITY ,THERMOPLASTIC composites ,CLAY ,CREEP (Materials) ,SHEAR strain ,DEFORMATIONS (Mechanics) ,TEMPERATURE - 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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27. Eulerian finite element simulation of spudcan-pile interaction.
- Author
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Tho, Kee Kiat, Leung, Chun Fai, Chow, Yean Khow, and Swaddiwudhipong, Somsak
- Subjects
FINITE element method ,EULER'S numbers ,JACKUP rigs ,COMPUTER simulation ,SOIL profiles ,CLAY ,SAND ,RISK assessment - 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
- 2013
- Full Text
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28. The Lachenaie clay deposit: some geochemical and geotechnical properties in relation to the salt-leaching process.
- Author
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Duhaime, François, Benabdallah, El Mehdi, and Chapuis, Robert P.
- Subjects
CLAY ,SOIL leaching ,ANALYTICAL geochemistry ,ENGINEERING geology ,SALINITY ,PERMEABILITY measurement ,MATHEMATICS - Abstract
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- Published
- 2013
- Full Text
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29. Design of shallow footings on heavily overconsolidated clays.
- Author
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Budhu, Muniram
- Subjects
CONCRETE footing design & construction ,CLAY ,BUILDING foundations ,COMPRESSIBILITY ,MECHANICAL loads ,MATHEMATICAL models - Abstract
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- Published
- 2012
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30. Systematic approach to assessing the applicability of fly-ash-based geopolymer for clay stabilization.
- Author
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Abdullah, Hayder H., Shahin, Mohamed A., Walske, Megan L., and Karrech, Ali
- Subjects
SOIL stabilization ,CLAY ,CLAY soils ,SOIL mineralogy ,CEMENT admixtures ,COMPRESSIVE strength - 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
- 2020
- Full Text
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31. Centrifuge modelling of uplift response of suction caisson groups in soft clay.
- Author
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Zhu, Bin, Dai, Jia-lin, Kong, De-qiong, Feng, Ling-yun, and Chen, Yun-min
- Subjects
CAISSONS ,CENTRIFUGES ,BEARING capacity of soils ,SOIL profiles ,CLAY ,SURFACE fault ruptures - 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
- 2020
- Full Text
- View/download PDF
32. Field study of pile – prefabricated vertical drain (PVD) interaction in soft clay.
- Author
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Zhu, Dongli, Indraratna, Buddhima, Poulos, Harry, and Rujikiatkamjorn, Cholachat
- Subjects
VERTICAL drains ,CLAY ,SOIL testing ,FIELD research ,PORE water pressure ,EMBANKMENTS ,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
- 2020
- Full Text
- View/download PDF
33. Centrifugal and numerical modeling of stiffened deep mixed column-supported embankment with slab over soft clay.
- Author
-
Zhang, Zhen, Ye, Guanbao, Cai, Yongsheng, and Zhang, Zhao
- Subjects
BEARING capacity of soils ,EMBANKMENTS ,SLOPE stability ,SOIL consolidation ,SOIL depth ,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
- 2019
- Full Text
- View/download PDF
34. Constant rate of strain consolidation testing of soft clays and fibrous peats.
- Author
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Mesri, Gholamreza and Feng, Tao-Wei
- Subjects
STRAIN rate ,PEAT ,CLAY ,COMPRESSIBILITY ,PERMEABILITY - 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
- 2019
- Full Text
- View/download PDF
35. A field study on the behavior of micropiles in clay under compression or tension.
- Author
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Jie Han and Shu-Lin Ye
- Subjects
EXCAVATION ,EARTHWORK ,CLAY ,SOIL vibration ,SOIL dynamics - 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
36. 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
- View/download PDF
37. Modelling of curling in desiccating clay.
- Author
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Kodikara, J.K., Nahlawi, H., and Bouazza, A.
- Subjects
CLAY ,SEDIMENTS ,SOILS ,WET wells (Hydraulic 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
- View/download PDF
38. Geotechnical properties of transparent silica.
- Author
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Sadek, Samer, Iskander, Magued G, and Liu, Jinyuan
- Subjects
SILICA content in soils ,SOIL structure ,COLLOIDS ,SAND ,CLAY - Abstract
This paper discusses the geotechnical properties of two families of transparent silica, which can be used to model soil structure interaction and flow problems in transparent soil models. The fundamental premise of this research is that these materials can be used in model tests to study three-dimensional deformation and flow problems, using nonintrusive optical visualization techniques. Triaxial, direct shear, consolidation, and permeability tests conducted in this study indicate that transparent silica gels and amorphous silica have macroscopic geotechnical properties consistent with those of sands and clays, respectively. The materials used in this research have the same refractive index, which permits combining both families in a stratified transparent soil model. The transparent soils described in this paper represent the only system of transparent materials capable of resembling soils that have a wide range of grain sizes including sand and clay using the same pore fluid.Key words : imaging, optical, silica gel, amorphous silica, clay, sand, modeling.Cet article discute des propriétés géotechniques de deux familles de silices transparentes qui peuvent être utilisées pour modéliser l'interaction de la structure du sol et les problèmes d'écoulement dans les modèles de sols transparents. La prémisse de base de cette recherche est que ces matériaux peuvent être utilisés dans des essais sur modèle pour étudier la déformation à trois dimensions et les problèmes d'écoulement en utilisant des techniques optiques de visualisation non destructrices. Les essais triaxiaux, de cisaillement direct, de consolidation et de perméabilité réalisés dans cette étude indiquent que les gels de silice transparente et la silice amorphe ont des propriétés géotechniques macroscopiques qui sont consistantes avec celles des sables et des argiles respectivement. Les matériaux utilisés dans cette recherche ont le même indice de réfraction, ce qui permet de combiner les deux familles de silice dans une modèle de sol stratifié transparent. Les sols transparents décrits dans cet article représente le seul système de matériaux transparents qui puisse ressembler aux sols ayant une large plage de dimensions de grains incluant le sable et l'argile et utilisant le même fluide interstitiel.Mots clés : imagerie, optique, gel de silice, silice amorphe, argile, sable, modélisation.[Traduit par la Rédaction] [ABSTRACT FROM AUTHOR]
- Published
- 2002
- Full Text
- View/download PDF
39. Finite element modelling of helical pile installation and its influence on uplift capacity in strain softening clay.
- Author
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Yu, Hao, Zhou, Hang, Sheil, Brian, and Liu, Hanlong
- Subjects
FINITE element method ,CLAY ,CHOLESTERIC liquid crystals - 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
40. Centrifuge modelling of an instrumented free-fall sphere for measurement of undrained strength in fine-grained soils.
- Author
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Morton, J.P., O'Loughlin, C.D., and White, D.J.
- Subjects
SPHERES ,CLAY ,WEIGHTLESSNESS ,DYNAMICS ,DRAG (Hydrodynamics) - 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
41. Characterization of model uncertainty in predicting axial resistance of piles driven into clay.
- Author
-
Tang, Chong and Phoon, Kok-Kwang
- Subjects
MONTE Carlo method ,CLAY ,PILES & pile driving ,LOAD factor design ,PROBABILISTIC databases ,BEARING capacity of soils ,DEAD loads (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
- 2019
- Full Text
- View/download PDF
42. Evaluation of sample quality from different sampling methods in Finnish soft sensitive clays.
- Author
-
Di Buò, Bruno, Selänpää, Juha, Länsivaara, Tim Tapani, and D'Ignazio, Marco
- Subjects
CLAY ,SAMPLING methods ,TEST interpretation ,TESTING laboratories ,TUBES - 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
- 2019
- Full Text
- View/download PDF
43. Reconstructing oedometric compression curves for selecting design parameters.
- Author
-
Carneiro, Raphael Felipe, Gerscovich, Denise Maria Soares, and Danziger, Bernadete Ragoni
- Subjects
CLAY ,SOIL consolidation test ,SOIL consolidation ,ONE-dimensional flow ,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
- 2019
- Full Text
- View/download PDF
44. Bearing capacity of strip footings on sand over clay.
- Author
-
Salimi Eshkevari, Seyednima, Abbo, Andrew J., and Kouretzis, George
- Subjects
BEARING capacity of soils ,SHEAR strength of soils ,SAND ,CLAY ,FINITE element method - 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
- 2019
- Full Text
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45. Capacity of dynamically installed anchors as assessed through field testing and three-dimensional large-deformation finite element analyses.
- Author
-
O'Beirne, C., O'Loughlin, C.D., Wang, D., and Gaudin, C.
- Subjects
ANCHORS ,FINITE element method ,GEOTECHNICAL engineering ,ANCHORS -- Design & construction ,CLAY ,BEARING capacity of 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
- 2015
- Full Text
- View/download PDF
46. New approach of vacuum preloading with booster prefabricated vertical drains (PVDs) to improve deep marine clay strata.
- Author
-
Cai, Yuanqiang, Xie, Zhiwei, Wang, Jun, Wang, Peng, and Geng, Xueyu
- Subjects
VERTICAL drains ,VACUUM technology ,WALL panels ,SOIL mechanics ,CLAY ,MARINE geotechnics - 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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47. Mode-based characterisation of swell deformations in a high-plasticity Paleogene clay.
- Author
-
Kinslev, Emil Mejlhede, Hededal, Ole, Rocchi, Irene, and Zania, Varvara
- Subjects
LOADING & unloading ,SOIL mechanics ,CLAY ,STRAIN rate ,DEFORMATIONS (Mechanics) ,PALEOGENE - 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
48. Laboratory investigation of pore pressure dissipation in clay around permeable piles.
- Author
-
Ni, Pengpeng, Mangalathu, Sujith, Mei, Guoxiong, and Zhao, Yanlin
- Subjects
PORE water pressure ,CLAY ,SOIL permeability ,PILES & pile driving ,DRAINAGE ,SCIENTIFIC observation ,SOIL consolidation - 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
49. Drained cavity expansion analysis with a unified state parameter model for clay and sand.
- Author
-
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
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50. Behaviour of saturated railway track foundation materials during undrained cyclic loading.
- Author
-
Mamou, Anna, Priest, Jeffrey A., Clayton, Christopher R.I., and Powrie, William
- Subjects
CYCLIC loads ,CYCLIC fatigue ,SHEARING force ,CLAY ,AXIAL stresses - 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
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