Dépouillements

Limit loads for a shallow anchor/trapdoor embedded in a non-associative coulomb soil / C. C. Smith in Géotechnique, Vol. 62 N° 7 (Juillet 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 563 –571 Titre : Limit loads for a shallow anchor/trapdoor embedded in a non-associative coulomb soil Type de document : texte imprimé Auteurs : C. C. Smith, Auteur Année de publication : 2012 Article en page(s) : pp. 563 –571 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Aanchors  Plasticity  Limit  state  design/analysis Résumé : A theoretical methodology for determining the range of possible plane-strain limit loads acting on an anchor or trapdoor buried within a non-associative Coulomb soil is presented. Solutions are given for shallow anchors and trapdoors underlying both weightless soil with surface load and soil possessing self-weight with no surface load. A method for determining limit loads for combined scenarios is additionally outlined. Solutions are shown to correlate favourably with experimental and finite-element data in the literature. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.P.136 [article] Limit loads for a shallow anchor/trapdoor embedded in a non-associative coulomb soil [texte imprimé] / C. C. Smith, Auteur . - 2012 . - pp. 563 –571. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 563 –571 Mots-clés : Aanchors  Plasticity  Limit  state  design/analysis Résumé : A theoretical methodology for determining the range of possible plane-strain limit loads acting on an anchor or trapdoor buried within a non-associative Coulomb soil is presented. Solutions are given for shallow anchors and trapdoors underlying both weightless soil with surface load and soil possessing self-weight with no surface load. A method for determining limit loads for combined scenarios is additionally outlined. Solutions are shown to correlate favourably with experimental and finite-element data in the literature. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.P.136

The effects of penetration rate and strain softening on the vertical penetration resistance of seabed pipelines / S. Chatterjee in Géotechnique, Vol. 62 N° 7 (Juillet 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 573 –582 Titre : The effects of penetration rate and strain softening on the vertical penetration resistance of seabed pipelines Type de document : texte imprimé Auteurs : S. Chatterjee, Auteur ; M. F. Randolph, Auteur ; D. J. White, Auteur Année de publication : 2012 Article en page(s) : pp. 573 –582 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Offshore  engineering  Shear  strength  Clays  Numerical  modelling Résumé : Offshore pipelines in deep water are generally laid directly on the seabed, without any additional stabilisation measures. Design parameters that determine the soil resistance to lateral and axial motion of the pipeline are a function of the amount of vertical embedment. However, this latter quantity is difficult to estimate, partly because of the effects of soil heave around the pipeline as it penetrates, and partly because the soil shear strength depends on the strain rate and the degree of softening as the soil is sheared and remoulded. In this paper, a large deformation finite-element approach was adopted to study pipe–soil interaction during vertical embedment of pipelines on the seabed. The simple Tresca soil model was modified to incorporate the combined effects of strain rate and softening. The present large deformation finite-element method was validated by comparing the results with data from centrifuge model tests. A parametric study was then performed, varying the strain rate and softening parameters to explore their effects on penetration resistance. Simple expressions for penetration resistance, incorporating the effects of strain rate and softening, have been developed. The effects of soil strength vertical heterogeneity and buoyancy have also been explored. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.P.075 [article] The effects of penetration rate and strain softening on the vertical penetration resistance of seabed pipelines [texte imprimé] / S. Chatterjee, Auteur ; M. F. Randolph, Auteur ; D. J. White, Auteur . - 2012 . - pp. 573 –582. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 573 –582 Mots-clés : Offshore  engineering  Shear  strength  Clays  Numerical  modelling Résumé : Offshore pipelines in deep water are generally laid directly on the seabed, without any additional stabilisation measures. Design parameters that determine the soil resistance to lateral and axial motion of the pipeline are a function of the amount of vertical embedment. However, this latter quantity is difficult to estimate, partly because of the effects of soil heave around the pipeline as it penetrates, and partly because the soil shear strength depends on the strain rate and the degree of softening as the soil is sheared and remoulded. In this paper, a large deformation finite-element approach was adopted to study pipe–soil interaction during vertical embedment of pipelines on the seabed. The simple Tresca soil model was modified to incorporate the combined effects of strain rate and softening. The present large deformation finite-element method was validated by comparing the results with data from centrifuge model tests. A parametric study was then performed, varying the strain rate and softening parameters to explore their effects on penetration resistance. Simple expressions for penetration resistance, incorporating the effects of strain rate and softening, have been developed. The effects of soil strength vertical heterogeneity and buoyancy have also been explored. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.P.075

Estimation of the hydraulic parameters of unsaturated samples by electrical resistivity tomography / R. M. Cosentini in Géotechnique, Vol. 62 N° 7 (Juillet 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 583 –594 Titre : Estimation of the hydraulic parameters of unsaturated samples by electrical resistivity tomography Type de document : texte imprimé Auteurs : R. M. Cosentini, Auteur ; G. Della Vecchia, Auteur ; S. Foti, Auteur Année de publication : 2012 Article en page(s) : pp. 583 –594 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Geophysics  Partial  saturation  Laboratory  tests  Seepage  Suction Résumé : In situ and laboratory experiments have shown that electrical resistivity tomography (ERT) is an effective tool to image transient phenomena in soils. However, its application in quantifying soil hydraulic parameters has been limited. In this study, experiments of water inflow in unsaturated soil samples were conducted in an oedometer equipped to perform three-dimensional electrical measurements. Reconstructions of the electrical conductivity at different times confirmed the usefulness of ERT for monitoring the evolution of water content. The tomographic reconstructions were subsequently used in conjunction with a finite-element simulation to infer the water retention curve and the unsaturated hydraulic conductivity. The parameters estimated with ERT agree satisfactorily with those determined using established techniques, hence the proposed approach shows good potential for relatively fast characterisations. Similar experiments could be carried out on site to study the hydraulic behaviour of the entire soil deposit. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.P.066 [article] Estimation of the hydraulic parameters of unsaturated samples by electrical resistivity tomography [texte imprimé] / R. M. Cosentini, Auteur ; G. Della Vecchia, Auteur ; S. Foti, Auteur . - 2012 . - pp. 583 –594. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 583 –594 Mots-clés : Geophysics  Partial  saturation  Laboratory  tests  Seepage  Suction Résumé : In situ and laboratory experiments have shown that electrical resistivity tomography (ERT) is an effective tool to image transient phenomena in soils. However, its application in quantifying soil hydraulic parameters has been limited. In this study, experiments of water inflow in unsaturated soil samples were conducted in an oedometer equipped to perform three-dimensional electrical measurements. Reconstructions of the electrical conductivity at different times confirmed the usefulness of ERT for monitoring the evolution of water content. The tomographic reconstructions were subsequently used in conjunction with a finite-element simulation to infer the water retention curve and the unsaturated hydraulic conductivity. The parameters estimated with ERT agree satisfactorily with those determined using established techniques, hence the proposed approach shows good potential for relatively fast characterisations. Similar experiments could be carried out on site to study the hydraulic behaviour of the entire soil deposit. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.P.066

On-sample water content measurement for a complete local monitoring in triaxial testing of unsaturated soils / J. A. Munoz-Castelblanco in Géotechnique, Vol. 62 N° 7 (Juillet 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 595 –604 Titre : On-sample water content measurement for a complete local monitoring in triaxial testing of unsaturated soils Type de document : texte imprimé Auteurs : J. A. Munoz-Castelblanco, Auteur ; P. Delage, Auteur ; J. M. Pereira, Auteur Année de publication : 2012 Article en page(s) : pp. 595 –604 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Suction  Partial  saturation  Laboratory  equipment Résumé : To provide a complete local monitoring of the state of an unsaturated soil sample during triaxial testing, a local water content measurement device was adapted to a triaxial device comprising the measurement of local displacements (Hall effect transducers) and suction (high-capacity transducer). Water content was locally monitored by means of a resistivity probe. The water content/resistivity calibration curves of an intact, natural, unsaturated loess from northern France extracted by block sampling at two depths (1 and 3·3 m) were carefully determined, showing good accuracy and repeatability. The validity of two models giving the resistivity of unsaturated soils with respect to their water content was examined. The first triaxial tests carried out with this device in the range of in situ stresses gave satisfactory results, but with some effects of the applied cell stress on the water content measurements. Some preliminary behaviour characteristics of the natural unsaturated loess, a material rarely tested up to now in the literature, were evidenced. Also, the yield stresses appeared significantly higher than the in situ stresses, confirming the combined effect of partial saturation and bonding. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.P.129 [article] On-sample water content measurement for a complete local monitoring in triaxial testing of unsaturated soils [texte imprimé] / J. A. Munoz-Castelblanco, Auteur ; P. Delage, Auteur ; J. M. Pereira, Auteur . - 2012 . - pp. 595 –604. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 595 –604 Mots-clés : Suction  Partial  saturation  Laboratory  equipment Résumé : To provide a complete local monitoring of the state of an unsaturated soil sample during triaxial testing, a local water content measurement device was adapted to a triaxial device comprising the measurement of local displacements (Hall effect transducers) and suction (high-capacity transducer). Water content was locally monitored by means of a resistivity probe. The water content/resistivity calibration curves of an intact, natural, unsaturated loess from northern France extracted by block sampling at two depths (1 and 3·3 m) were carefully determined, showing good accuracy and repeatability. The validity of two models giving the resistivity of unsaturated soils with respect to their water content was examined. The first triaxial tests carried out with this device in the range of in situ stresses gave satisfactory results, but with some effects of the applied cell stress on the water content measurements. Some preliminary behaviour characteristics of the natural unsaturated loess, a material rarely tested up to now in the literature, were evidenced. Also, the yield stresses appeared significantly higher than the in situ stresses, confirming the combined effect of partial saturation and bonding. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.P.129

A hysteretic soil-water retention model accounting for cyclic variations of suction and void ratio / D. Gallipoli in Géotechnique, Vol. 62 N° 7 (Juillet 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 605 –616 Titre : A hysteretic soil-water retention model accounting for cyclic variations of suction and void ratio Type de document : texte imprimé Auteurs : D. Gallipoli, Auteur Année de publication : 2012 Article en page(s) : pp. 605 –616 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Numerical  modelling  Partial  saturation  Suction Résumé : The paper presents a water retention model capable of predicting the hysteretic response of soils during both wetting–drying cycles at constant void ratio and compression–swelling cycles at constant suction. In the proposed model two main surfaces – the main wetting and main drying surfaces – enclose the domain of attainable soil states in the degree of saturation–suction–void ratio space. Inside this domain, the variation of degree of saturation is governed by a reversible scanning law, which describes the transition from one main surface to the other. A simplified calibration procedure is presented to select the values of the four parameters defining the two main surfaces by using a minimum of two compression tests at constant suction and one drying test at constant mean net stress. Model computations are validated against results from an experimental campaign on a compacted mixture of bentonite and kaolin. The proposed formulation is capable of capturing important soil features, such as the influence of hydraulic hysteresis and deformation on the variation of degree of saturation, and the dependence of water retention behaviour during compression on previous wetting–drying history. Moreover, during main wetting or main drying at high suction (i.e. at low saturation), the model correctly predicts a ‘virgin' retention line that uniquely relates water ratio and suction regardless of the current value of void ratio. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.11.P.007 [article] A hysteretic soil-water retention model accounting for cyclic variations of suction and void ratio [texte imprimé] / D. Gallipoli, Auteur . - 2012 . - pp. 605 –616. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 605 –616 Mots-clés : Numerical  modelling  Partial  saturation  Suction Résumé : The paper presents a water retention model capable of predicting the hysteretic response of soils during both wetting–drying cycles at constant void ratio and compression–swelling cycles at constant suction. In the proposed model two main surfaces – the main wetting and main drying surfaces – enclose the domain of attainable soil states in the degree of saturation–suction–void ratio space. Inside this domain, the variation of degree of saturation is governed by a reversible scanning law, which describes the transition from one main surface to the other. A simplified calibration procedure is presented to select the values of the four parameters defining the two main surfaces by using a minimum of two compression tests at constant suction and one drying test at constant mean net stress. Model computations are validated against results from an experimental campaign on a compacted mixture of bentonite and kaolin. The proposed formulation is capable of capturing important soil features, such as the influence of hydraulic hysteresis and deformation on the variation of degree of saturation, and the dependence of water retention behaviour during compression on previous wetting–drying history. Moreover, during main wetting or main drying at high suction (i.e. at low saturation), the model correctly predicts a ‘virgin' retention line that uniquely relates water ratio and suction regardless of the current value of void ratio. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.11.P.007

Thermal conductivity of sands / S. K. Haigh in Géotechnique, Vol. 62 N° 7 (Juillet 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 617 –625 Titre : Thermal conductivity of sands Type de document : texte imprimé Auteurs : S. K. Haigh, Auteur Année de publication : 2012 Article en page(s) : pp. 617 –625 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Sands  Temperature  effects  Theoretical  analysis Résumé : The thermal properties of soils are important in a variety of applications, including the thermal performance of buried pipelines and geothermal heat pumps. A variety of methods exist for the prediction of thermal conductivity based on empirical fits to databases of soil thermal conductivities. In this paper an analytical model will be developed based on unidirectional heat flow through a three-phase soil element. The performance of this model will be validated against a database of 155 test measurements from the published literature. A variety of alternative prediction methods will be tested against this dataset, with the model derived here being shown to be at least as good as the best empirical model while retaining a physical origin. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.11.P.043 [article] Thermal conductivity of sands [texte imprimé] / S. K. Haigh, Auteur . - 2012 . - pp. 617 –625. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 617 –625 Mots-clés : Sands  Temperature  effects  Theoretical  analysis Résumé : The thermal properties of soils are important in a variety of applications, including the thermal performance of buried pipelines and geothermal heat pumps. A variety of methods exist for the prediction of thermal conductivity based on empirical fits to databases of soil thermal conductivities. In this paper an analytical model will be developed based on unidirectional heat flow through a three-phase soil element. The performance of this model will be validated against a database of 155 test measurements from the published literature. A variety of alternative prediction methods will be tested against this dataset, with the model derived here being shown to be at least as good as the best empirical model while retaining a physical origin. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.11.P.043

A strain space soil model with evolving stiffness anisotropy / K. C. Ellison in Géotechnique, Vol. 62 N° 7 (Juillet 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 627 –641 Titre : A strain space soil model with evolving stiffness anisotropy Type de document : texte imprimé Auteurs : K. C. Ellison, Auteur ; K. Soga, Auteur ; B. Simpson, Auteur Année de publication : 2012 Article en page(s) : pp. 627 –641 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Stiffness  Constitutive  relations  Anisotropy Résumé : A complete formulation of the BRICK soil model in general strain space is presented herein for the first time. Like all elasto-plastic constitutive models, BRICK exhibits some anisotropic behaviour, owing to the development of plastic strains once its yield surfaces are engaged. However, an abundance of laboratory and field evidence demonstrates that stiffness anisotropy is also significant within the elastic domain. Because of the inseparable nature of strength and stiffness in BRICK, the simple use of an anisotropic elastic stiffness matrix would result in an unrealistically high degree of strength anisotropy. Therefore, in addition to the established BRICK formulation, this paper also presents a novel framework to introduce stiffness anisotropy by transforming the coordinate system in which the model is based. The transformed coordinate system evolves to enable a constant-volume condition during shearing at critical state, reflecting the reorganisation of the soil fabric. The superior performance of the enhanced BRICK model over the classic model is demonstrated by a variety of conventional and non-conventional laboratory tests on London Clay. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.P.095 [article] A strain space soil model with evolving stiffness anisotropy [texte imprimé] / K. C. Ellison, Auteur ; K. Soga, Auteur ; B. Simpson, Auteur . - 2012 . - pp. 627 –641. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 627 –641 Mots-clés : Stiffness  Constitutive  relations  Anisotropy Résumé : A complete formulation of the BRICK soil model in general strain space is presented herein for the first time. Like all elasto-plastic constitutive models, BRICK exhibits some anisotropic behaviour, owing to the development of plastic strains once its yield surfaces are engaged. However, an abundance of laboratory and field evidence demonstrates that stiffness anisotropy is also significant within the elastic domain. Because of the inseparable nature of strength and stiffness in BRICK, the simple use of an anisotropic elastic stiffness matrix would result in an unrealistically high degree of strength anisotropy. Therefore, in addition to the established BRICK formulation, this paper also presents a novel framework to introduce stiffness anisotropy by transforming the coordinate system in which the model is based. The transformed coordinate system evolves to enable a constant-volume condition during shearing at critical state, reflecting the reorganisation of the soil fabric. The superior performance of the enhanced BRICK model over the classic model is demonstrated by a variety of conventional and non-conventional laboratory tests on London Clay. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.P.095

Implications of the definition of the Φ function in elastic-viscoplastic models / T. M. Bodas Freitas in Géotechnique, Vol. 62 N° 7 (Juillet 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 643 –648 Titre : Implications of the definition of the Φ function in elastic-viscoplastic models Type de document : texte imprimé Auteurs : T. M. Bodas Freitas, Auteur ; D. M. Potts, Auteur ; L. Zdravkovic, Auteur Année de publication : 2012 Article en page(s) : pp. 643 –648 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Time  dependence  Creep  Constitutive  relations Résumé : A discrepancy has been identified in existing overstress theory based elastic-viscoplastic models regarding the definition of the Φ function, which determines the magnitude of the viscoplastic strain increment. Based on existing experimental data, some authors define the function Φ assuming that any given loading surface is a locus of constant volumetric viscoplastic strain rate. Others, instead, assume that a loading surface is a locus of constant Φ. This paper examines the implications of using either of the above approaches. It is shown that the two approaches yield very similar predictions for stress states far from failure (for stress levels up to approximately 0·6), however, critical-state conditions are reproduced only when the current loading surface is assumed to be a locus of constant Φ. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.P.053 [article] Implications of the definition of the Φ function in elastic-viscoplastic models [texte imprimé] / T. M. Bodas Freitas, Auteur ; D. M. Potts, Auteur ; L. Zdravkovic, Auteur . - 2012 . - pp. 643 –648. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 643 –648 Mots-clés : Time  dependence  Creep  Constitutive  relations Résumé : A discrepancy has been identified in existing overstress theory based elastic-viscoplastic models regarding the definition of the Φ function, which determines the magnitude of the viscoplastic strain increment. Based on existing experimental data, some authors define the function Φ assuming that any given loading surface is a locus of constant volumetric viscoplastic strain rate. Others, instead, assume that a loading surface is a locus of constant Φ. This paper examines the implications of using either of the above approaches. It is shown that the two approaches yield very similar predictions for stress states far from failure (for stress levels up to approximately 0·6), however, critical-state conditions are reproduced only when the current loading surface is assumed to be a locus of constant Φ. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.10.P.053

Load transfer behaviour of a tapered rigid pile / J. Liu in Géotechnique, Vol. 62 N° 7 (Juillet 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 649 –652 Titre : Load transfer behaviour of a tapered rigid pile Type de document : texte imprimé Auteurs : J. Liu, Auteur ; J. He, Auteur ; Y.-P. Wu, Auteur Année de publication : 2012 Article en page(s) : pp. 649 –652 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Numerical  modelling  Settlement  Piles  Bearing  capacity  Model  tests Résumé : Based on Mohr–Coulomb theory and the load transfer method, a new method of analysing the load–settlement relation and the axial force distribution model in a tapered pile is suggested. The method proposed in the paper considers the influence of the pile–soil radial interaction on the bearing capacity and settlement behaviour. The calculation results show that the pile–soil radial interaction is strengthened and the bearing capacity of a single pile is increased when the taper angle of a rigid pile is increased. The reliability was verified by two model tests. Calculated results obtained by the proposed method were compared with the test data. The close agreement between the calculated and measured values confirmed that the method is reasonably accurate for analysing the behaviour of tapered rigid piles. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.11.T.001 [article] Load transfer behaviour of a tapered rigid pile [texte imprimé] / J. Liu, Auteur ; J. He, Auteur ; Y.-P. Wu, Auteur . - 2012 . - pp. 649 –652. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 649 –652 Mots-clés : Numerical  modelling  Settlement  Piles  Bearing  capacity  Model  tests Résumé : Based on Mohr–Coulomb theory and the load transfer method, a new method of analysing the load–settlement relation and the axial force distribution model in a tapered pile is suggested. The method proposed in the paper considers the influence of the pile–soil radial interaction on the bearing capacity and settlement behaviour. The calculation results show that the pile–soil radial interaction is strengthened and the bearing capacity of a single pile is increased when the taper angle of a rigid pile is increased. The reliability was verified by two model tests. Calculated results obtained by the proposed method were compared with the test data. The close agreement between the calculated and measured values confirmed that the method is reasonably accurate for analysing the behaviour of tapered rigid piles. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.11.T.001

Geotechnical characterisation and engineering properties of Burswood clay / H. E. Low in Géotechnique, Vol. 62 N° 7 (Juillet 2012) 

Public ISBD [article]  in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 653 –656 Titre : Geotechnical characterisation and engineering properties of Burswood clay Type de document : texte imprimé Auteurs : H. E. Low, Auteur ; M. Landon Maynard, Auteur ; M. F. Randolph, Auteur Année de publication : 2012 Article en page(s) : pp. 653 –656 Note générale : Génie Civil Langues : Anglais (eng) Note de contenu : Discussion ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.11.D.007 [article] Geotechnical characterisation and engineering properties of Burswood clay [texte imprimé] / H. E. Low, Auteur ; M. Landon Maynard, Auteur ; M. F. Randolph, Auteur . - 2012 . - pp. 653 –656. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 7 (Juillet 2012) . - pp. 653 –656 Note de contenu : Discussion ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.11.D.007

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