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Thèses sur le sujet « Sand pile »

Auteur : Grafiati

Publié le 7 juin 2025

Mis à jour le 2 août 2025

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1

Cuthbertson-Black, Robert. "The interaction between a flighted steel pipe pile and frozen sand." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ57528.pdf.

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Shublaq, E. W. "A study of model pile group-sand interaction." Thesis, University of Leeds, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375520.

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3

Burali, d'Arezzo Francesca. "Installation effects due to pile surging in sand." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.709370.

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4

Al-Hadid, Tareq N. M. "Pull-out tests on bent piles in sand." Thesis, University of Sheffield, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358951.

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5

Abdelaziz, Gamal. "An axisymmetrical model for a single vertical pile in sand." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ59226.pdf.

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6

Gui, Meen-Wah. "Centrifuge and numerical modelling of pile and penetrometer in sand." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361612.

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7

Wilson, Daniel W. "Soil-pile-superstructure interaction in liquefying sand and soft clay /." Davis, Calif. : Center for Geotechnical Modeling, Dept. of Civil and Environmental Engineering, University of California, Davis, 1998. http://cgm.engr.ucdavis.edu/download/html.

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8

Al-Defae, Asad Hafudh Humaish. "Seismic performance of pile-reinforced slopes." Thesis, University of Dundee, 2013. https://discovery.dundee.ac.uk/en/studentTheses/829dd554-a7e9-4c61-9206-01909793666c.

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Shallow embankment slopes are commonly used to support elements of transport infrastructure in seismic regions. In this thesis, the seismic performance of such slopes in non-liquefiable granular soils has been investigated and an extensive programme of centrifuge testing was conducted to quantify the improvements to seismic slope performance which can be achieved by installing a row of discretely spaced vertical precast concrete piles. This study focussed on permanent movement and dynamic response at different positions within the slope, especially at the crest, which would form key inputs int

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9

Su, Dong. "Centrifuge investigation on responses of sand deposit and sand-pile system under multi-directional earthquake loading /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202005%20SU.

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10

Han, Jie. "An experimental and analytical study of the behavior of fiber-reinforced polymer piles and pile-sand interactions." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/20296.

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11

Walsh, J. Matthew. "Full-scale lateral load test of a 3x5 pile group in sand /." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd955.pdf.

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12

Jebur, A. A. J. "An experimental and theoretical study of pile foundations embedded in sand soil." Thesis, Liverpool John Moores University, 2018. http://researchonline.ljmu.ac.uk/9211/.

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This study aimed to examine the load carrying capacity of model instrumented piles embedded in sand soil, and to develop and verify reliable, highly efficient predictive models to fully correlate the non-linear relationship of pile load-settlement behaviour using a new, self-tuning artificial intelligence (AI) approach. In addition, a new methodology has been developed, in which the most effective pile bearing capacity design parameters can be precisely determined. To achieve this, a series of comprehensive experimental pile load tests were carried out on precast concrete piles, steel closed-e

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13

Marsh, Robert Ashall. "Passive Earth pressures on a pile cap with a dense sand backfill /." Diss., CLICK HERE for online access, 2010. http://contentdm.lib.byu.edu/ETD/image/etd3356.pdf.

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14

Walsh, James Matthew. "Full-Scale Lateral Load Test of a 3x5 Pile Group in Sand." BYU ScholarsArchive, 2005. https://scholarsarchive.byu.edu/etd/605.

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Although it is well established that spacing of piles within a pile group influences the lateral load resistance of that group, additional research is needed to better understand trends for large pile groups (greater than three rows) and for groups in sand. A 15-pile group in a 3x5 configuration situated in sand was laterally loaded and data were collected to derive p-multipliers. A single pile separate from the 15-pile group was loaded for comparison. Results were compared to those of a similar test in clays. The load resisted by the single pile was greater than the average load resisted by e

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15

Marsh, Robert Ashall. "Passive Earth Pressures on a Pile Cap with a Dense Sand Backfill." BYU ScholarsArchive, 2009. https://scholarsarchive.byu.edu/etd/1958.

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Pile groups are often used to provide support for structures. Capping a pile group further adds to the system's resistance due to the passive earth pressure from surrounding backfill. While ultimate passive earth pressure under static loading conditions can be readily calculated using several different theories, the effects of cyclic and dynamic loading on the passive earth pressure response are less understood. Data derived from the full-scale testing of a pile cap system with a densely compacted sand backfill under static, cyclic, and dynamic loadings was analyzed with particular focus on so

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16

Alkroosh, Iyad Salim Jabor. "Modelling pile capacity and load-settlement behaviour of piles embedded in sand & mixed soils using artificial intelligence." Thesis, Curtin University, 2011. http://hdl.handle.net/20.500.11937/351.

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This thesis presents the development of numerical models which are intended to be used to predict the bearing capacity and the load-settlement behaviour of pile foundations embedded in sand and mixed soils. Two artificial intelligence techniques, the gene expression programming (GEP) and the artificial neural networks (ANNs), are used to develop the models. The GEP is a developed version of genetic programming (GP). Initially, the GEP is utilized to model the bearing capacity of the bored piles, concrete driven piles and steel driven piles. The use of the GEP is extended to model the load-sett

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17

Christensen, Dustin Shaun. "Full Scale Static Lateral Load Test of a 9 Pile Group in Sand." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1267.pdf.

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18

Valentine, Todd J. "Dynamic Testing of a Full-Scale Pile Cap with Dense Silty Sand Backfill." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd2021.pdf.

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19

Runnels, Immanuel Kaleoonalani. "Dynamic Full-Scale Testing of a Pile Cap with Loose Silty Sand Backfill." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1854.pdf.

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20

Villeneuve, Joey. "Laboratory Testing for Adfreeze Bond of Sand on Model Steel Piles." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37323.

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This study explored the available adfreeze data published in literature and the techniques used to obtain it. Two methods were selected and modified to complete series of adfreeze bond test. A model pile pull-out method consisting of pulling a pile out a large specimen of soil was the first method used. The second method was modified from an interface shearing apparatus developed by Dr. Fakharian and Dr. Evgin at the University of Ottawa in 1996 and allowed preparing, freezing and testing the specimen in place. The material and soil tested for this study were provided by EXP Services Inc. The

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21

McCall, Amy Jean Taylor. "Full-Scale-Lateral-Load Test of a 1.2 m Diameter Drilled Shaft in Sand." BYU ScholarsArchive, 2006. https://scholarsarchive.byu.edu/etd/403.

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The soil-structure interaction models associated with laterally loaded deep foundations have typically been based on load tests involving relatively small diameter foundations. The lateral soil resistance for larger diameter foundations has been assumed to increase linearly with diameter; however, few, if any load tests have been performed to confirm this relationship. To better understand the lateral resistance of large diameter deep foundations in sand, a series of full scale, cyclic, lateral load tests were performed on two 1.2 m diameter drilled shafts and a 0.324 m diameter steel pipe pil

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22

Hollenbaugh, Joseph Erick. "Full-Scale Testing of Blast-Induced Liquefaction Downdrag on Auger-Cast Piles in Sand." BYU ScholarsArchive, 2014. https://scholarsarchive.byu.edu/etd/5494.

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Deep foundations like auger-cast piles and drilled shafts frequently extend through liquefiable sand layers and bear on non-liquefiable layers at depth. When liquefaction occurs, the skin friction on the shaft decreases to zero, and then increases again as the pore water pressure dissipates and the layer begins to settle, or compact. As the effective stress increases and the liquefiable layer settles, along with the overlaying layers, negative skin from the soil acts on the shaft. To investigate the loss of skin friction and the development of negative skin friction, soil-induced load was meas

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23

Doreau, Malioche Jeanne. "Grain-scale investigation of sand-pile interface under axial loading conditions using x-ray tomography." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAI066/document.

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Cette thèse présente une étude expérimentale des mécanismes contrôlant la réponse macroscopique d’une interface sable-pieu sous sollicitations axiales monotones et cycliques. Une approche innovante associant la tomographie rayons X à des outils avancés d’analyses d’images en trois dimensions (3D) est utilisée dans le but d’extraire des informations à différentes échelles, notamment à l’échelle micro. L’analyse quantitative du comportement individuel des grains situés au voisinage du pieu fournit une collection de données 3D qui pourraient être utilisées pour la validation de modèles numériques

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24

Wong, Ming Hoi. "Investigation of capacity, interactions and failure criteria of jacked pile groups in sand by centrifuge modelling /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202004%20WONGM.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2004.<br>Includes bibliographical references (leaves 146-151). Also available in electronic version. Access restricted to campus users.

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25

Sabry, Mohab. "Shaft resistance of a single vertical or batter pile in sand subjected to axial compression or uplift loading." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ64056.pdf.

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26

Kevan, Luke Ian. "Full-Scale Testing of Blast-Induced Liquefaction Downdrag on Driven Piles in Sand." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6966.

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Deep foundations such as driven piles are often used to bypass liquefiable layers of soil and bear on more competent strata. When liquefaction occurs, the skin friction around the deep foundation goes to zero in the liquefiable layer. As the pore pressures dissipate, the soil settles. As the soil settles, negative skin friction develops owing to the downward movement of the soil surrounding the pile. To investigate the magnitude of the skin friction along the shaft three driven piles, an H-pile, a closed end pipe pile, and a concrete square pile, were instrumented and used to measure soil indu

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27

Mirzoyan, Artak Davit. "Lateral Resistance of Piles at the Crest of Slopes in Sand." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd2088.pdf.

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28

Jeffrey, John. "Investigating the performance of continuous helical displacement piles." Thesis, University of Dundee, 2012. https://discovery.dundee.ac.uk/en/studentTheses/9877bf01-2251-4b34-aa8b-0ff9fc36a264.

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The Continuous Helical Displacement (CHD) pile is an auger displacement pile developed by Roger Bullivant Ltd in the UK. The CHD pile is installed in-situ through the use of a drilling auger, in a similar fashion to European screw piles and as such, it has performance characteristics of both displacement and non-displacement piles Based on field experience, it is known that the load capacity performance of the CHD pile significantly exceeds the current design predictions, particularly when installed in sand. Model CHD piles were created in pluviated test beds at a range of different densities

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29

Cummins, Colin R. "Behavior of a full-scale pile cap with loosely and densely compacted clean sand backfill under cyclic and dynamic loadings /." Diss., CLICK HERE for online access, 2009. http://contentdm.lib.byu.edu/ETD/image/etd2839.pdf.

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30

Cummins, Colin Reuben. "Behavior of a Full-Scale Pile Cap with Loosely and Densely Compacted Clean Sand Backfill under Cyclic and Dynamic Loadings." BYU ScholarsArchive, 2009. https://scholarsarchive.byu.edu/etd/1684.

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A series of lateral load tests were performed on a full-scale pile cap with three different backfill conditions, namely: with no backfill present, with densely compacted clean sand in place, and with loosely compacted clean sand in place. In addition to being displaced under a static loading, the pile cap was subjected to low frequency, small displacement loading cycles from load actuators and higher frequency, small displacement, dynamic loading cycles from an eccentric mass shaker. The passive earth pressure from the backfill was found to significantly increase the load capacity of the pile

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31

Yadak, Reza. "Comparing CPT Results and Numerical Method Investigations to Assess the Behaviour of Pile and Sand and Mixed Soil Using ABAQUS." Thesis, Curtin University, 2020. http://hdl.handle.net/20.500.11937/84165.

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The cone penetration test (CPT) is a method used to determine the geotechnical engineering properties of soils and delineating soil stratigraphy. This study demonstrates the expansion of numerical models using ABAQUS software, which are purposed to be used to predict the load-settlement and the ultimate bearing capacity behavior of pile foundations embedded in sand and mixed soil. This achieved by validating numerical results, using ABAQUS, and CPT site investigations.

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32

Lings, Martin L. "Contributions to the understanding of deep excavations in stiff clay and stiffness anisotropy also pile shaft friction and sand-steel interfaces." Thesis, University of Bristol, 2008. http://hdl.handle.net/1983/6fc1f459-b593-4b23-9059-9de25b8aae05.

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33

El, Haffar Ismat. "Physical modeling and study of the behavior of deep foundations of offshore wind turbines in sand." Thesis, Ecole centrale de Nantes, 2018. http://www.theses.fr/2018ECDN0021/document.

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La capacité axiale et latérale des pieux foncés dans du sable de Fontainebleau NE34 ont été étudié à l’aide d’essais sur modèles réduits centrifugés. L’effet de la méthode d’installation, de la densité et de la saturation du sable, du diamètre du pieu, de la géométrie de sa pointe (ouvert /fermé) et de sa rugosité sur la capacité axiale a été étudié. Une augmentation significative de la capacité en traction est observée dans les pieux foncés cycliquement, contrairement aux pieux foncés d’une manière monotone à 100 × g. La saturation du sable dense accélère la formation du bouchon lors de l'ins

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34

TAKAGI, Kenji, 光夫野津, Mitsuo NOZU та ін. "水～土連成計算を用いた砂杭拡径による砂地盤の締固めメカニズムの一考察". 土木学会, 2001. http://hdl.handle.net/2237/8642.

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35

Camões, Lourenço João. "Numerical Modelling of Non-Displacement Piles in Sand : The importance of the dilatancy in the resistance mobilization." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASC033.

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Cette thèse se concentre sur la réponse des pieux installés dans le sable lorsqu'ils sont soumis à des actions verticales et en particulier concernant la pertinence du comportement volumétrique du sol sur cette réponse. À l'interface sol-pile, lorsque le sol est déformé par cisaillement, des déformations volumétriques (généralement dilatation) se produisent, ce qui provoque une importante variation de l'état de contrainte. Cela se fait à l'aide de modèles numériques par éléments finis en adoptant le modèle élastoplastique ECP, une loi constitutive réaliste pour décrire le comportement du sol d

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Alansari, Omar Mohamed A. "Capacity and behavior of steel pipe piles in dry sand /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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37

Mazutti, Júlia Hein. "Estudo do atrito lateral no arrancamento de estacas modelo instaladas por fluidização em areia." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/183019.

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O objetivo desta dissertação consiste em aprofundar o entendimento dos mecanismos que controlam o atrito lateral sob arrancamento de estacas instaladas por fluidização em areia. A técnica de instalação é estudada como uma alternativa para a utilização de estacas torpedo na fixação de plataformas offshore. Trabalhou-se em laboratório com o arrancamento de estacas metálicas circulares em modelo reduzido. Foram utilizados três diâmetros de estacas modelo, simulando três diferentes escalas: 14 mm (1:76), 16,2 mm (1:67) e 21,3 mm (1:50). Foram realizados 8 ensaios de arrancamento (24 horas após a f

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38

Masson, Benoît. "Des piles de sable aux automates de sable." Phd thesis, Université de Nice Sophia-Antipolis, 2006. http://tel.archives-ouvertes.fr/tel-00144448.

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Dans cette thèse nous étudions différents systèmes dynamiques discrets permettant de simuler la formation des piles de sable. Le comportement des modèles de base SPM ou IPM(k) est bien connu dans des conditions initiales spécifiques. Nous étendons ces résultats à des conditions initiales plus générales, et nous introduisons le modèle SSPM qui ajoute de la symétrie à ces modèles et améliore leur réalisme. Dans un second temps, nous étudions un autre système dynamique, les automates de sable. Ils sont définis de manière analogue aux automates cellulaires, avec la contrainte supplémentaire qu'une

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39

GUERRA, Lara. "MODELLAZIONE FISICA DI PALI TRIVELLATI IN SABBIA." Doctoral thesis, Università degli studi di Ferrara, 2010. http://hdl.handle.net/11392/2388691.

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The dissertation deals with the modelling of the behaviour of bored pile, embedded in a coarse grained soil, axially loaded in tension and compression, with particular attention to the mobilization of the lateral and the base capacities. A series of almost 60 centrifuge tests has been carried out on free-headed and close-ended rough model piles, instrumented and not, whose dimensions varies from 8 mm to 32 mm in diameter and 160 mm to 320 mm in length. The tests have been carried out at various acceleration levels between 30g and 160g, thus simulating a large series of prototype dimen

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Robinson, R. B. "Piles in sand and in sand overlying clay." Thesis, University of South Wales, 1989. https://pure.southwales.ac.uk/en/studentthesis/piles-in-sand-and-in-sand-overlying-clay(8c43e7a9-c869-4a1f-a044-30741f2964bc).html.

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This thesis examines the behaviour of single 60mm and 114mm segmented tubular steel piles driven and placed into loose sand and loose sand overlying clay. The soil was placed and instrumented under controlled conditions in a 3.0m diameter by 3.0m deep concrete tank. The 60mm pile was dynamically driven using a pneumatically controlled driving rig, whilst the 114mm pile was driven at a constant rate of penetration via a hydraulic jack. The static and dynamic axial load distributions were monitored for the 60mm pile. The variation in local shaft friction and radial effective stress were monitore

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Yonan, Shafik J. "Pipe jacking forces in sand." Thesis, Loughborough University, 1993. https://dspace.lboro.ac.uk/2134/15343.

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In this research work, a comprehensive review of investigations into pipe jacking operations, and in particular the forces generated during the process, is presented. The factors affecting these forces were examined and their influence was studied in order to give a clear indication on the their magnitude and behaviour. A model scale testing facility, based on a 1.8m X 1.5m X 1.5m high steel tank, has been developed together with hydraulic jacking facilities and scale model pipes of 200mm diameter having both steel and concrete surfaces. In this facility the actual pipe jacking operation can b

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Sakr, Mohammed A. "Centrifuge modeling of tapered piles in sand." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0018/MQ58078.pdf.

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Osho, Adeyemi Joseph. "Effects of pipe orientation on sand transportation." Thesis, Cranfield University, 2013. http://dspace.lib.cranfield.ac.uk/handle/1826/8409.

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Sand transport in hilly terrain geometry is different and complex to understand compared to horizontal pipeline, due to the influence of the geometry that greatly affect multiphase flow and sand behaviour at the dip. The overall aim of this research work is to use experimental method to investigate the effects of multiphase flow behaviour on sand transport in a dip configuration. Experimental work was carried out to understand the complex dynamic mechanisms that exist during sand multiphase flow using 2” inch dip test facility with different inclination angles of ±24° and ±12° configurations.

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GIRETTI, Daniela. "MODELLING OF PILED RAFT FOUNDATIONS IN SAND." Doctoral thesis, Università degli studi di Ferrara, 2010. http://hdl.handle.net/11392/2389285.

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A piled raft is a composite foundation in which the piles are used as settlement reducers and they share, with the raft, the load from the superstructure. The applied load is transferred from the raft to the shallow soil and to the pile heads, and from the piles it is diffused through the shaft and the base to deeper soil. The pile–raft and pile–pile interactions represent the distinctive aspect of the piled raft foundations since they modify the load–bearing behaviour of each foundation component, compared to an analogous isolated element, thus determining the overall foundation behav

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45

Conti, Claudio. "Small-scale physical modelling of piled foundations for offshore wind turbines application." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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Nowadays, finding alternative energy sources is becoming more and more important. Europe is particularly focusing on wind energy and in offshore wind energy especially. An issue concerning offshore wind energy which is gaining more and more attention is the noise emissions due to impact driven pile foundation. The noise caused by the installation process has been judged as “potentially dangerous for marine fauna” from the German Authorities. This research thesis is part of a project which examines a viable alternative installation method for the displacement of pile foundations for offshore w

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46

Wu, Zexiang. "Modélisation du comportement des sables sous la condition de cisaillement simple et applications au calcul des pieux." Thesis, Ecole centrale de Nantes, 2017. http://www.theses.fr/2017ECDN0045/document.

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La thèse vise à étudier le comportement mécanique des sables sous la condition de cisaillement simple et à son application au calcul des pieux. Tout d'abord, un modèle de sable récemment développé (SIMSAND) prenant en compte l'état critique est introduit avec une procédure directe de détermination des paramètres. Le modèle est implanté dans un code de calcul aux éléments finis qui a fait l’objet de différentes validations. Ensuite, le modèle est amélioré en considérant l'anisotropie inhérente lors de la rotation des contraintes principales sous la condition de cisaillement simple et a été vali

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Wang, Dong. "Investigation of laterally loaded pile in sands using DEM." Thesis, University of Macau, 2012. http://umaclib3.umac.mo/record=b2586268.

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Kumar, Kavita. "Catalyseurs sans métaux nobles pour pile à combustible régénérative." Thesis, Poitiers, 2017. http://www.theses.fr/2017POIT2284/document.

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Le dihydrogène (H2) se présente comme le futur vecteur énergétique pour une économie basée sur des ressources propres et respectueuses de l'environnement. Il est le combustible idéal de la pile à combustible régénérative constituée de deux entités : un électrolyseur pour sa production, et une pile à combustible pour sa conversion directe en énergie électrique. Ce système présente l'avantage d'être compact et autonome. Cependant, l'amélioration de l'activité catalytique des matériaux, leur stabilité et l'élimination de métaux nobles dans leur composition sont nécessaires. Des catalyseurs bifonc

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Axelsson, Gary. "Long-term set-up of driven piles in sand." Doctoral thesis, KTH, Civil and Environmental Engineering, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3009.

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Nazir, Ramli Bin. "The moment carrying capcity of short piles in sand." Thesis, University of Liverpool, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240279.

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