Relevant bibliographies by topics / Drilled concrete piles

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Drilled concrete piles'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "Drilled concrete piles"

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Burkovič, Kamil, Martina Smirakova, and Pavlina Matečková. "Testing and Modelling of Concrete Pile Foundations." Key Engineering Materials 738 (June 2017): 287–97. http://dx.doi.org/10.4028/www.scientific.net/kem.738.287.

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Foundation of building on concrete piles is often used when it is necessary to carry the load into larger depth as by common foundation. Bearing capacity of piles or piled raft foundation is wide area to research. This paper deals with experimental load test of concrete pile and with their numerical modelling. Several types of foundation construction were tested and two kinds will be presented and compared in this paper - reinforced concrete foundation slab and raft foundation (made of reinforced concrete foundation slab supported by drilled reinforced concrete pilot). These types of foundation constructions were constructed as models, in a reduced scale, approx. 1:10. The size had to be adjusted due to limited capacity of the testing equipment and financial reasons. Except measuring of the foundation behaviour, there was also carried out measurement of the adjacent terrain.The aim of this paper is to compare the behaviour of rigid slab and the piled raft. The measurement results will be then compared with the results of numerical modelling.
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Sokolov, Nikolay. "An approach to increasing the load-bearing capacity of drilled injection piles." E3S Web of Conferences 274 (2021): 03016. http://dx.doi.org/10.1051/e3sconf/202127403016.

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The problem of strengthening weak or overloaded bases is an important objective of underground space development. It is especially urgent if there are alternating weak layers in the base. The paper presents a practical geotechnical case of strengthening the overloaded base of a reinforced concrete foundation plate for a 25-storey residential building under construction. Combined soil piles that consist of Jet (type 1) soil concrete piles reinforced along the longitudinal axis with drilled injection piles made by electric discharge technology (EDT piles) are used as buried structures. This method of arrangement of a combined buried reinforced concrete structure is conditioned by the need to increase the load-bearing capacity of a pile in soil by two or more times.
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Khan, M. Kamran, M. Hesham El Naggar, and Mohamed Elkasabgy. "Compression testing and analysis of drilled concrete tapered piles in cohesive-frictional soil." Canadian Geotechnical Journal 45, no. 3 (March 2008): 377–92. http://dx.doi.org/10.1139/t07-107.

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When pile driving is difficult and (or) economically not viable, cast-in-place piles are indispensable. Tapered piles, which have top cross-sections larger than the bottom cross-sections, have the potential for substantial advantages over conventional straight-sided piles. This paper investigates the construction and performance of innovative drilled concrete tapered piles. A full-scale pile load-testing program was conducted to evaluate the axial compressive capacity of drilled concrete tapered piles in frictional soil. One straight and three tapered augers were designed and manufactured to produce six piles. The piles that were constructed and tested included four tapered and two straight piles. The testing results showed that tapered piles with a taper angle varying between 0.95° and 1.91° had a load carrying capacity up to 50% higher than the straight-sided piles with equal volume. It should be noted, however, that the experimental results are site specific. Moreover, an analytical expression was developed to evaluate the pile taper effect on its shaft capacity in terms of a taper coefficient, Kt. The value of Kt evaluated from the analytical expression compared well with experimentally measured values. Finally, a two dimensional nonlinear finite element analysis was conducted to simulate the load test conditions, and it proved to be successful.
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Sheikh, Shamim A., and Michael W. O'Neill. "Long-term behavior of expansive concrete drilled shafts." Canadian Journal of Civil Engineering 13, no. 2 (April 1, 1986): 213–17. http://dx.doi.org/10.1139/l86-029.

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The research reported here is a continuation of work reported earlier in which it was concluded that the use of expansive cement concrete increased the side resistance of drilled shafts (bored piles) in stiff clay by as much as 50% over that in normal concrete shafts and reduced the settlement by about 50%. The conclusions were based on tests conducted at a concrete age of about 2 months. A year and a half later, the three shafts (one made with normal concrete and two made with expansive concrete) were tested again and the same comparatively better behavior of expansive concrete shafts was observed. The base capacities of all the shafts increased over this period owing to the consolidation of soil caused by residual base stresses following the initial tests. The shafts were later extracted for visual observation and coring. The compression tests on concrete cores obtained from various depths along the shafts indicated that expansive concrete behaves as a sound structural material in the long term. The gains in strength and stiffness of expansive concrete over normal concrete over a period of 2 years were found to be significant. Key words: base bearing capacity, bored pile, cement (expansive), concrete (structural), drilled shaft, expansion, frictional capacity, long-term behavior, settlement.
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Hidden, Scott, and Nariman Abar. "Predesign Foundation Load Test Program for US-17 (Wilmington) Bypass over Northeast Cape Fear River." Transportation Research Record: Journal of the Transportation Research Board 1736, no. 1 (January 2000): 19–23. http://dx.doi.org/10.3141/1736-03.

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The North Carolina Department of Transportation is currently conducting a predesign foundation load test for a new bridge over the Northeast Cape Fear River near Wilmington, North Carolina. The primary purpose of the load test program is to determine whether concrete piles can penetrate a very dense and cemented sand layer and what side friction and tip bearing capacities should be used for the design of the drilled piers. Significant cost savings could be realized if pile foundations instead of drilled piers could support the approach spans of the bridge. For this determination, three concrete piles will be installed 30 m into the ground. Significant cost savings could also be realized by making a more accurate determination of the drilled pier capacities. For this determination, the side friction and tip bearing capacities of the dense Peedee sands and the underlying hard marine clays will be determined with Osterberg cell tests on two 2130-mm-diameter drilled piers. The different subsurface layers (muck, alluvial sands, and Peedee sands) will also be tested laterally with both static and statnamic testing to assist in the foundation design. The load test program incorporates an NCHRP research program on pile groups. The program includes testing a reusable instrumented steel pile group and frame at various sites in various soil conditions around the United States. The load test program results to date, the effect of the results on the foundation design, and the construction, testing, and instrumentation of the drilled piers are described.
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Khalili-Tehrani, Payman, Eric R. Ahlberg, Changsoon Rha, Anne Lemnitzer, Jonathan P. Stewart, Ertugrul Taciroglu, and John W. Wallace. "Nonlinear Load-Deflection Behavior of Reinforced Concrete Drilled Piles in Stiff Clay." Journal of Geotechnical and Geoenvironmental Engineering 140, no. 3 (March 2014): 04013022. http://dx.doi.org/10.1061/(asce)gt.1943-5606.0000957.

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Zhao, Heng, Shuai Zhou, and Ming-hua Zhao. "Load transfer in drilled piles for concrete-rock interface with similar triangular asperities." International Journal of Rock Mechanics and Mining Sciences 120 (August 2019): 58–67. http://dx.doi.org/10.1016/j.ijrmms.2019.06.003.

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Park, Kyungho, Daehyeon Kim, Gyudeok Kim, and Wooyoul Lee. "Evaluation of the Pullout Behavior of Pre-Bored Piles Embedded in Rock." Materials 14, no. 19 (September 26, 2021): 5593. http://dx.doi.org/10.3390/ma14195593.

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The subject of this study is dry process caisson tube method cofferdam (hereinafter called C.T cofferdam). This C.T cofferdam is designed to use the skin friction of the drilled shaft embedded into the rock for stability of buoyancy. A pre-bored pile embedded in the bedrock was pulled out due to the buoyancy of the C.T cofferdam at the pier (hereinafter called P) 2 of the OO bridges under construction, to which this was applied. In this study, in order to solve this problem, the adhesion force applied with the concept of skin friction and the pre-bored pile of drilled shaft according to domestic and foreign design standards were identified; the on-site pull-out load test was used to calculate the pull-out force; and the skin friction of the drilled shaft and pre-bored pile embedded into the bedrock were compared and analyzed. In addition, the pull-out behavior of the pre-bored pile embedded in the bedrock was analyzed through numerical analysis. The adhesion strength tested in the lab was 881 kN for air curing of concrete and 542 kN for water curing of concrete, and the on-site pull-out test result was 399.7 kN. As a result of the numerical analysis, the material properties of the grout considering the site conditions used revealed that the displacement of the entire structure exceeded the allowable limit and was unstable. This appears to have lowered the adhesion strength due to construction issues such as ground complexity and both seawater and slime treatment, which were not expected at the time of design.
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Lee, Woojin, Won-Je Lee, Sang-Bae Lee, and Rodrigo Salgado. "Measurement of pile load transfer using the Fiber Bragg Grating sensor system." Canadian Geotechnical Journal 41, no. 6 (December 1, 2004): 1222–32. http://dx.doi.org/10.1139/t04-059.

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A series of laboratory and field tests were performed to evaluate the applicability of an optical fiber sensor system in the instrumentation of piles. A multiplexed sensor system, constructed by arranging several Fiber Bragg Grating (FBG) sensors along a single line of optical fiber, is capable of measuring local axial strains as a function of wavelength shifts. The distributions of axial load in three model piles and a field test pile evaluated from the strains measured by FBG sensors are found to be comparable, in terms of both magnitude and trend, with those obtained from conventional strain gauges. This suggests that the FBG sensor system is an effective tool for the analysis of the axial load transfer in piles. The successful instrumentation of a soil–cement injected precast (SIP) pile using FBG sensors suggests that the use of these sensors in drilled shafts and other types of cast in situ concrete piles is feasible. With the rapid advance of optical fiber sensor technology, the economics of the use of optical fiber sensors in this type of instrumentation is expected to improve significantly in coming years.Key words: pile foundation, load transfer, fiber optic sensor, Fiber Bragg Grating sensor.
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Sheinin, V. I., A. M. Dzagov, E. S. Kostenko, A. P. Manzhin, D. I. Blokhin, I. B. Maksimovich, and V. N. Soboleva. "Determining the Strength Characteristics of Concrete in Drilled Piles from Tests on Extracted Core Specimens." Soil Mechanics and Foundation Engineering 53, no. 2 (May 2016): 119–24. http://dx.doi.org/10.1007/s11204-016-9374-8.

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Dissertations / Theses on the topic "Drilled concrete piles"

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Ponížil, Cyril. "Analýza zatěžovací zkoušky piloty." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265323.

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There is ussualy used the Masopust's method to assessment the piles in Czech Republic. This method is based on statistical processing of large data set of load piles tests. Due to the using of regression coefficients this method is relatively complicated and not very transparent. Instead, foreign standards ussualy use direct the values of limit stress on the base of piles and unit friction capacity. Procedure for determining the bearing capacity of the piles is thus considerably simplified. In this thesis the Masopust's method is compared with the methods used in Germany and Austria. This comparison provides insight to the safety level that include various approaches.
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Prusková, Nikola. "Samoobslužné obchodní centrum - stavebně technologický projekt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226486.

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The diploma thesis deals with the construction technological project of a self-service shopping centre in Stará Plesná village. Time and finance plan, design of machinery and project of building site accessories were elaborated. The work is focused on the main building object SO 101 (Shopping and service centre). For this building pile foundations and top coarse building phase were worked out in greater details. Time plan, item budget and other documents concerning building preparations of object SO 101 are also parts of the work.
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Karlík, Štěpán. "Administrativní objekt Brno-Husovice." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227847.

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This diploma thesis deals with a new built office building in Brno-Husovice. The building is situated in a gap site on the street Dukelská třída. The building has four aboveground floors and underground garages. The ground floor is divided into relaxation area and a commercial section with five shopping units. The second and the third floor are designed as a variable office space. The engine room for ventilation is situated on the fourth floor. Construction system is cast-in-place concrete frame. The building is roofed with the green roofs. Foundations are made of large diameter drilled piles.
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Veselá, Šárka. "Rezidence Ponavia Brno, stavebně technologická příprava stavby." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265419.

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The diploma thesis deals with construction technological project of a flat house Residence Ponavia. The thesis contains time and financial plan, itemized budget of main object, technical report, site equipment, safety and healt care policy and machine assembly. The thesis focuses on building foundation and bottom floor. Thesis includes technological prescription and control and test plan for mentioned constructional phases.
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Kratěna, Dominik. "Nemocnice Teplice, pavilon operačních sálů – stavebně technologický projekt." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392247.

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The subject matter of the diploma thesis is the structurally technical resolution of a new pavilion project, which is situated in the area of the Teplice hospital. The pavilion consists of a two-storey ferroconcrete monolithic framework. The thesis contains a technical report of the construction-technological project, a report of the construction site equipment, a traffic stance in the surroundings of the construction site, a solution of traffic alinements for the transport of materials, a design of the main building machines and mechanisms, a plan of health and safety at work, the environmental protection, a timetable, a technological prescription of monolithic structures, a technological prescription of drilled piles, an inspection and test plans, a contract for work, the budget of the gross superstructure and a resource limit.
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Ráb, Jakub. "Stavebně technologický projekt haly ADS s.r.o. Větřkovice." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-391951.

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The subject of my master's thesis is construction technological project of the hall ADS s.r.o. Větřkovice. The work includes technical report of construction technological project, facilities of construction zone, solving traffic routes from the production to the place of construction, study of the implementation of the main technological stages of the building SO02, the most appropriate machine assembly, technological specification for drilled piles and for montage of prefabricated reinforced concrete skeleton, control and test plan, schedule of work, itemized budget, plan of the safety and health protection during work, proposals of design of movement mechanisms and time and financial discretion of realization of the reinforced areas of the production hall area.
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Petrík, Tomáš. "Stavebně technologický projekt skladovací haly." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226501.

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In this diploma thesis is processed build-up organization of logistics centre in Ostrava. The build-up organization covers the implementation of ground works, foundation constructions and precast concrete framework. Storage hall of logistics centre is based on drilled concrete piles and precast concrete framework makes up main structure. Construction technology project contains time-schedule and financial plan for whole project, time-schedule of construction works, budget, technological standard for precast concrete framework, design of building site accessories, design of machine group, safety plan, check and test plan.
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Stokes, Michael Jeffrey. "Advancements in rapid load test data regression." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001929.

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Bouali, Emna. "Formulation des bétons lourds , Application dans les fondations profondes." Thesis, CY Cergy Paris Université, 2020. http://www.theses.fr/2020CYUN1055.

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Les bétons lourds sont des bétons spéciaux de haute densité qui dépasse les 3000 kg/m3 comparativement aux bétons ordinaires (2350 kg/m3). Généralement, ils sont utilisés comme des écrans de protection contre les rayonnements ionisants au niveau des installations nucléaires ce qui permet de réaliser des ouvrages porteurs assurant une protection contre les rayons Gamma et d’autres rayons radioactifs. Ils sont utilisés aussi comme des lests dans les applications nécessitant un contre poids important. Des granulats de forte densité sont utilisés pour la fabrication de ces bétons comme la barytine (sulphate de baryum), l’hématite et la magnétite (minerais à base d’oxydes de fer), des déchets ferreux, grenailles de fer ou d’acier… grâce aux propriétés particulières qui les caractérisent tel que la haute densité, la faible abrasivité et la neutralité chimique. Cette étude porte sur l’influence de ces additions utilisées sur le comportement rhéologique (viscosité plastique et seuil de cisaillement) et mécanique des bétons lourds confectionnés. Les résultats obtenus ont montré que l’augmentation du pourcentage d’ajout d’addition (de 38% jusqu’à 54%) provoque une augmentation de la viscosité plastique et du seuil de cisaillement. L’objectif principal de cette présente recherche, est d’étudier la faisabilité d’utiliser ces bétons lourds dans les fondations profondes et plus précisément dans le bétonnage des pieux forés. Afin de répondre à cet objectif, un dispositif équivalent reproduisant à échelle réduite le bétonnage des pieux forés et permettant donc d’établir des corrélations entre la mise en place du béton avec le dispositif proposé et la mise en place réelle du béton sur les chantiers, a été mis en place. Plusieurs configurations de fixation du tube plongeur ont été étudiées. L’ensemble des résultats obtenus a permis de régler la hauteur de fixation du tube plongeur à 15 cm du fond du pieu afin de favoriser la sortie du premier béton et l’évacuation du fluide de forage. Des simulations numériques de l’écoulement d’un fluide à seuil en présence d’un deuxième fluide ont étés réalisées en utilisant COMSOL Multiphysics. L’influence des paramètres rhéologiques et de la densité des bétons utilisés dans le bétonnage des pieux a été étudiée à travers ces simulations. Il a été montré que l’augmentation du béton utilisé (de 2435 kg/m3 à 3064 k/m3) augmente le volume de fluide évacué c’est-à-dire, plus le béton est dense plus, il arrive à chasser le fluide et le remplacer dans le tube.Mots
Heavy concretes are special concretes of high density, which is almost 3000 kg/m3 instead of 2350 kg/m3 in the case of ordinary concretes. Usually, they are used as shields against ionizing radiation at nuclear facilities, which allows the construction of load-bearing structures providing protection against Gamma and other radioactive rays. They are also used as ballast in structures requiring a high weight. Aggregates and heavy additions are used for the manufacture of these concretes such as barite, hematite, magnetite, ferrous waste, granules of iron and steel, thanks to their particular properties such as high density, low abrasivity and chemical neutrality. This study deals with the influence of these additions used on the rheological (plastic viscosity and yield stress) and mechanical behavior of the heavy concretes made in order to highlight the effect of the density of the additions on the behavior of the concretes. The results obtained showed that the increase in the addition percentage (from 38% to 54%) causes an increase in the plastic viscosity and the yield stress. The main objective of this research is to study the feasibility of using these heavy concretes in deep foundations specifically in the concreting of bentonite-bored piles. In order to meet this objective, equivalent tests have been set up through the development of a device that simulates the concreting techniques applied at construction sites. Numerical simulations of concreting bentonite-bored piles have been performed using Comsol Multiphysics, through which the influence of rheological parameter and density of concretes was studied. It has been shown that increasing the concrete density from 2435 kg/m3 to 3064 kg/m3, increases the evacuated volume of drilling fluid
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Roudný, Tomáš. "Statické řešení věžového vodojemu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265366.

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The work deals with design of load-bearing structure of watertower. The solution include design and assessment of all main parts of watertower according to ČSN EN 1992 in the ultimate limit state and the serviceability limit state (crack limitation).
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Book chapters on the topic "Drilled concrete piles"

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Setiani Triastuti, Nusa. "Bore Pile Foundation Construction without Caused Fine Cracks at Three Heritage Building." In Heritage - New Paradigm [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.98555.

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Bore pile foundation close heritage building should be no damage. Install the bore pile process had to perfect, nonporous concrete, no necking, no sliding soil, no mixed deep water, Objective the construction of bore pile near heritage buildings did not deformation and no crack. The case study methodology was surveying the process of the installation bore pile at the soft soil. Analyzing the results of the loading test, the process of installing bore piles with limited space, without damaging heritage buildings. Monitoring will determine the success of the bore pile structure, including a slight decrease in the water table in the area and outside the building site. The vibration drill equipment damped by the trench so that it was safe from cracks in the heirloom building. Monitor the mud content in the water that went out at bore done of soil, monitor concrete every 2 m depth of bore pile the volume of concrete the heirloom building was not damaged. Axial bore pile test, lateral test according to design.
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Conference papers on the topic "Drilled concrete piles"

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Lundberg, Anders Beijer, Fredrik Resare, and Gary Axelsson. "Numerical Modelling of Inclined Piles in Settling Soil." In The 13th Baltic Sea Region Geotechnical Conference. Vilnius Gediminas Technical University, 2016. http://dx.doi.org/10.3846/13bsgc.2016.019.

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The allowable load for slender end-bearing piles in soft soils driven or drilled to compact till or rock frequently depends on the structural capacity of the pile. Pile groups consisting of such slender preceast concrete or steel piles often include inclined piles, since such small-diameter piles have a limited horizontal bearing capacity. Inclined piles placed in settling soil are subjected to a lateral force, which reduces the pile structural capacity. The simplified beam-spring design methods normally used to predict the impact on the structural capacity of inclined piles in settling soil are currently very crude because of the simplified description of the real pile and soil. On the other hand, the possibility to accurately calculate settlements in soft soil is highly developed, and it is possible to include creep effects in routine settlement calculations. There is currently no direct link between the advanced settlement analysis and the crude beam-spring idealization of inclined piles in settling soil. A full numerical model containing both the pile soilstructure interaction and the settlement process is very time-consuming to run and associated with mesh convergence and contact formulation problems. Herein a suitable modelling idealization of the settling soil is discussed, in which a settlement distribution from an advanced FEM-analysis is adapted to a simplified FEM or beam spring analysis suitable for practical design. The calculation method is compared to field measurements, and is shown to compare well with the field case. A strategy to adapt the settlement profile to model calculation of inclined piles is discussed.
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