Publications
396 results found
Nishimura S, Jardine RJ, Fenton CH, et al., 2013, Development of a predictive framework for geothermal and geotechnical responses in cold regions experiencing climate change, Paris, 18th Int. Conf. on Soil Mechnics and geotechnical Engineering, Publisher: Presses des Ponts, Pages: 3391-3394
Rimoy S, Jardine RJ, Standing JR, 2013, Displacement response to axial cycling of driven piles in sand, 18th Int. Conf. on Soil Mechanics and Geotchnical Engineering, Publisher: Presses des Ponts, Pages: 2387-2390
Rimoy SP, Jardine RJ, Standing JR, 2013, Displacement response to axial cycling of piles driven in sand, ICE Proceedings Geotechnical Engineering
Jardine RJ, Zhu BT, Foray P, et al., 2013, Interpretation of stress measurements made around closed-ended displacement piles in sand, GEOTECHNIQUE, Vol: 63, Pages: 613-627, ISSN: 0016-8505
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- Citations: 61
Silva M, Foray P, Rimoy S, et al., 2013, Influence of cyclic axial loads in the behaviour and response of driven piles in sand, Pages: 2403-2406
This paper presents a new cyclic stability diagram for the lateral friction and the effect on the tensile capacity of instrumented model piles subjected to axial cyclic loading across a wide range of calibration chamber testing in silica sand. Local measurements of stresses in the soil mass (vertical, radial and orthoradial) at different distances from the axis of the pile, as well as shear and radial stresses at the soil-pile interface, provide a detailed analysis of the evolution of local stress paths around the pile and the soil mass during cyclic and post-cyclic loading.
Puech A, Benzaria O, Thorel L, et al., 2013, Cyclic stability diagrams for piles in sands, Pages: 2379-2382
This paper gathers cyclic stability diagrams obtained from various experimental sources: in situ tests on actual piles, laboratory tests on model piles in a large calibration chamber and model piles in a centrifuge. Driven piles in tension and bored piles in compression are addressed. Cyclic stability diagrams are useful tools for a preliminary assessment of the effects of cyclic loadings on the behaviour of piles.
Jardine RJ, Zhu BT, Foray P, et al., 2013, Measurement of Stresses around Closed-Ended Displacement Piles in Sand, Geotechnique, Vol: 63, Pages: 1-17
Jardine RJ, Aghakouchak A, Sim WW, 2013, Cyclic triaxial tests to aid offshore pile analysis and design, Proceedings of the ICE - Geotechnical Engineering, Vol: 166, Pages: 111-121, ISSN: 1353-2618
Renewable offshore energy structures experience unusually high levels of cyclic loading under storm and operating conditions. Laboratory and full-scale tests provide one route to develop rational foundation design approaches for such structures. Analytical approaches may also be developed from soil element testing and modelling. This paper outlines preliminary results from such a study. Computer-controlled stress path triaxial equipment, employing high-resolution local strain instrumentation, is adopted for experiments on Dunkerque and Fontainebleau sands designed to support parallel full-scale field and laboratory-model testing programmes involving axial pile loading. The triaxial experiments comprise suites of constant-volume uniform cyclic tests on K 0 over-consolidated specimens employing different amplitudes, performed in conjunction with static and multi-stage experiments that examine the effects of non-uniform cyclic loading. Preliminary results reveal the relationships between cyclic deviator stress, mean effective stress changes and number of cycles, as well as patterns of permanent and cyclic strain development.
Jardine RJ, 2013, Bishop Lecture Advanced laboratory testing in research and practice, 18th International Conference on Soil Mechanics and Geotechnical Engineering (18th ICSMGE), Publisher: PRESSES DES PONTS, Pages: 35-54
Puech A, Benzaria O, Thorel L, et al., 2013, Diagrammes de stabilité cyclique de pieux dans les sables, Paris, 18th Int. Conf. on Soil Mechanics and Geotechnical Engineering, Publisher: Presses des Ponts, Pages: 2379-2382
Jardine RJ, Andersen K, Puech A, 2012, Keynote Paper. Cyclic loading of offshore piles: potential effects and practical design., London, 7th International Conference on Offshore Site Investigations and Geotechnics, Publisher: Society for Underwater Technology, Pages: 59-100
Carneiro A, Jardine RJ, 2012, A model study of how pre-drilling affects displacement pile capacity in stiff clays, London, 7th International Conference on Offshore Site Investigations and Geotechnics, Publisher: Society for Underwater Technology, Pages: 473-480
Merritt A, Schroeder F, Jardine RJ, et al., 2012, Development of pile design methodology for an offshore wind farm in the North Sea, London, 7th International Conference on Offshore Site Investigations and Geotechnics, Publisher: Society for Underwater Technology, Pages: 439-448
Rimoy SP, Jardine RJ, Silva M, et al., 2012, Local and global behaviour of cyclically loaded instrumented model displacement piles in sand, London, 7th International Conference on Offshore Site Investigations and Geotechnics, Publisher: Society for Underwater Technology, Pages: 279-286
Puech A, Canou J, Bernardini C, et al., 2012, SOLCYP: a four-year JIP on the behaviour of piles under cyclic loading, London, 7th International Conference on Offshore Site Investigations and Geotechnics, Publisher: Society for Underwater Technology, Pages: 263-270
Carneiro A, 2012, A model study of how pre-drilling affects displacement pile capacity in stiff clays., London, 7th International Conference on Offshore Site Investigations and Geotechnics, Publisher: Society for Underwater Technology, Pages: 473-480
Jardine RJ, Standing JR, 2012, Field axial cyclic loading experiments on piles driven in sand, Soils and Foundations, Vol: 52, Pages: 723-737
Kovacevic N, Jardine RJ, Potts DM, et al., 2012, A numerical simulation of progressive slope failures generated by salt diaiprism combined with active sedimentation, Geotechnique: international journal of soil mechanics, Vol: 62
This paper describes advanced finite element simulations of a geologically active andperiodically unstable 700m high underwater escarpment located in the Gulf of Mexicothat has been created by uplifting salt diapirs combined with sediment deposition. Thesite's geological history, soil permeability and clay shear strength characteristicsgovern current slope stability and determine the timing of any future failure. Thegeological and geotechnical conditions are reported before presenting fully coupled,large displacement, numerical simulations employing critical state formulations of theslope's evolution over the last 600,000 years. The latter form the basis for strainsoftening analyses of the pore pressure equalisation and progressive failure processesthat control current slope stability. The analyses also address the ground movementpatterns that precede instability, giving useful information for geohazard riskassessment and early warning monitoring system design.
Tsuha CHC, Foray PY, Jardine RJ, et al., 2012, Behaviour of displacement piles in sand under cyclic axial loading, SOILS AND FOUNDATIONS, Vol: 52, Pages: 393-410, ISSN: 0038-0806
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- Citations: 87
Burland JB, Jardine RJ, 2012, Training of Ground Engineering professionals – how can the UK provide skills required to maintain infrastructure?, Journal of the Parliamentary Scientific Committee, Vol: 69, Pages: 41-42
Puech A, Canou J, Bernardini C, et al., 2012, Solcyp: A four-year joint industry project on the behaviour of piles under cyclic loading, Pages: 263-270
SOLCYP is a research and development project conducted in France to: (i) understand the physical phenomena conditioning the response of piles to vertical and horizontal cyclic loads; (ii) develop advanced design methods; and (iii) initiate pre-normative development of methodologies that may later be included in national and international codes or professional standards. The potential applications include conventional structures, such as electricity pylons or chimneys, high rise towers and high speed train bridges. However, a central emphasis is also given to more novel foundations for offshore and onshore renewable energy engineering. The paper describes the objectives and overall technical content of the project. Several companion papers focus on more specific aspects and the results obtained so far.
Jardine R, Puech A, Andersen KH, 2012, Cyclic loading of offshore piles: Potential effects and practical design, Pages: 59-97
This paper reviews some key issues regarding the cyclic loading response of offshore piled foundations. Starting with axial loading it considers: The cyclic loading that can be expected; the fundamental responses of piles driven in clays and sands; frameworks for understanding axial cyclic response and specifying cyclic soil testing; and approaches for practical application in design. The review then moves to consider pile responses to moment and lateral loading, distinguishing between flexible and relatively rigid piles and anchors. A range of possible design approaches is considered and it is argued that current routine practice needs to be reconsidered. Practical methods now exist to address the potentially highly significant effects on axial capacity of piles that experience high ratios of cyclic to average loads. New research and calculation procedures are emerging that offer significant improvements in a broad spread of topics.
Aldridge TR, Carrington TM, Jardine RJ, et al., 2011, BP Clair Phase 1 - Pile driveability and capacity in extremely hard till, Pages: 477-482
Evans et al. (2010) describe how the foundation engineering for BP's Clair Phase 1 Drilling and Production Platform, West of Shetland, UK, had to consider tills with unprecedentedly high undrained shear strengths and unit weights. Boulders were also present. This paper describes the technical approach taken by BP's foundation assurance team in addressing these challenging conditions, focusing principally on driveability and axial capacity. Advanced field and laboratory investigations were conducted to allow a range of analyses that explicitly considered the effects of cyclic loading, group action, strain softening and possible pilot hole drilling. Instrumented advance driving trials were conducted, while the main jacket installation was also instrumented and back-up drilling options mobilised in case of harder-than-expected driving. © 2011 Taylor & Francis Group, London.
Jardine RJ, Aldridge T, Evans TG, 2011, Offshore foundation engineering in extremely dense glacial tills West of the Shetland Islands., 15th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE), Publisher: Millpress, Pages: 879-884
Wilkinson S, Brosse A, Coop MR, et al., 2011, An Integrated Geotechnical Study of UK Mudrocks, 15th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE), Publisher: Millpress, Pages: 305-310
Anh-Minh N, Nishimura S, Takahashi A, et al., 2011, On the control systems and instrumentation required to investigate the anisotropy of stiff clays and mudrocks through Hollow Cylinder Tests, Seoul, Korea, 5th International Symposium on Deformation Characteristics of Geomaterials, Publisher: Hanrimwon, Pages: 287-294
Rimoy SP, Jardine RJ, 2011, Strain accumulation in a silica sand due to creep after normal compression, and during sustained low-level cyclic loading, Seoul, Korea, 5th International Symposium on Deformation Characteristics of Geomaterials, Publisher: Hanrimwon, Pages: 463-470
Shen CH, O'Sullivan C, Jardine RJ, 2011, A micromechanical investigation of drained simple shear tests Deformation Characteristics of Geomaterials, Seoul, Korea, 5th International Symposium on Deformation Characteristics of Geomaterials, Publisher: Hanrimwon, Pages: 314-321
Altuhafi F, Jardine RJ, 2011, Effect of particle breakage and strain path reversal on the properties of sands located near to driven piles, Seoul, Korea, 5th International Symposium on Deformation Characteristics of Geomaterials, Publisher: Hanrimwon, Pages: 386-395
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