Добірка наукової літератури з теми "Béton sol"
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Статті в журналах з теми "Béton sol":
Bert, Yahel, Yves Stassen, and Hafid Tabet. "Un retour d’expérience pour les ouvrages maritimes : l’urbanisation en mer à Monaco." E3S Web of Conferences 346 (2022): 04014. http://dx.doi.org/10.1051/e3sconf/202234604014.
Di Donna, Alice, Fabrice Emeriault, Lionel Demongodin, and Jean-François Gobichon. "Aspects géotechniques et énergétiques des géostructures thermoactives : application à un cas d’étude réel." Revue Française de Géotechnique, no. 164 (2020): 4. http://dx.doi.org/10.1051/geotech/2021001.
Helson, Olivier, Javad Eslami, Anne-Lise Beaucour, Albert Noumowe, and Philippe Gotteland. "Étude parametrique de matériaux modèles : aide au dimensionnement des ouvrages souterrains issus de mélanges sol-ciment." Revue Française de Géotechnique, no. 162 (2020): 2. http://dx.doi.org/10.1051/geotech/2020004.
Adebiyi, O. A., A. A. Famakinwa, F. G. Adebiyi, T. O. Bankole, E. O. Benneth, and M. A. Muibi. "Straw bedded pigsties height: Effect on growth and skin lesion of pigs." Nigerian Journal of Animal Production 47, no. 6 (February 28, 2021): 91–98. http://dx.doi.org/10.51791/njap.v47i6.2900.
Lelong, Charles. "Bétons de sol et pavements de l'abbatiale de Marmoutier." Bulletin Monumental 150, no. 1 (1992): 39–47. http://dx.doi.org/10.3406/bulmo.1992.4397.
Shittu, O. O., A. J. Odeyemi, A. J. Adekunle, B. C. Majekodunmi, D. P. Toviesi, O. A. Osinowo, O. F. Smith, and O. F. Smith. "Comparative study of physiological adaptation in West African dwarf and Kalahari red goats in the humid tropics." Nigerian Journal of Animal Production 50, no. 1 (December 6, 2023): 21–34. http://dx.doi.org/10.51791/njap.v50i1.3901.
Muller, Aurelia Marine, Claudia Thurnherr, and Daniel Algernon. "Intégration d’un système CND Impact Echo sur un drone." e-journal of nondestructive testing 28, no. 9 (September 2023). http://dx.doi.org/10.58286/28518.
LE BLOA, Gaël. "Réparation et renforcement de structures béton par couche de béton rapportée - Calcul de la résistance au cisaillement longitudinal des surfaces de reprise de béton selon le TR 066 de l’EOTA et l’Eurocode 2." Les superstructures du bâtiment, February 2023. http://dx.doi.org/10.51257/a-v1-c2264.
Дисертації з теми "Béton sol":
Vila, Béatrice. "Comportement des dallages en béton de grande dimension : expérimentation en semi-grandeur, caractérisation de l'interface dalle-sol et modélisation globale." Lyon, INSA, 2006. http://www.theses.fr/2006ISAL0024.
This work was dedicated to the study of concrete floors on ground. The attention was focused on the stresses induced in the structure, while dimensional variations affect the concrete in ambient hydrothermal conditions. A literature review was performed, in which we describe in particular the different shrinkage strains of concrete. Then we dedicated ourselves to the characterisation of slab-soil interface. A semi-scale test campaign was conducted. It allowed us first to define the optimal configurations to limit the interfacial friction, then to establish a two-dimensional behaviour law. This law was introduced into a global model and compared with the results of a semi-scale test on 20 m long beams. We made a couple of simulations to assess the possibility of designing slab lengths larger than those fixed in design guides
Fach, Mohanad Al. "Modélisation tridimensionnelle du comportement sismique du système sol-pieux-pont : prise en compte des non-linéarités du sol et du béton." Thesis, Lille 1, 2009. http://www.theses.fr/2009LIL10063/document.
This work includes an analysis of various interactions of soil-piles-structure under seismic loads.mainly concerns with the analysis of the interactions between different elements (soil, pile, foundation, structure). A special attention was devoted to the non-linearity of soil, the development of plastic hinges in the piles and the influence of the soil-pile interface on the seismic response of the soil-pile-structure. The study was conducted using a three-dimensional modeling using the program FLAC 3D. The thesis is presented in three chapters : The tirst chapter presents a literature review of research work related to seismic behaviour of pile foundations.The second chapter includes a three-dimensional analysis of seismic behavior of soil-pile-superstructure taking into account the effect of soil plasticity. The study was conducted on various aspects of the interaction soil-pile-structure. the influence of mechanical parameters of soil and pile. the geometric configuration of the piles groups and the influence of seismic loading and its frequency content.The third chapter deals with specific aspects of the problem. including the development of plastic hinges at the top of the pile. the modeling and the influence of pile-soil interface and behavior of reinforced structures
Fach, Mohanad Al. "Modélisation tridimensionnelle du comportement sismique du système sol-pieux-pont : prise en compte des non-linéarités du sol et du béton." Electronic Thesis or Diss., Lille 1, 2009. http://www.theses.fr/2009LIL10063.
This work includes an analysis of various interactions of soil-piles-structure under seismic loads.mainly concerns with the analysis of the interactions between different elements (soil, pile, foundation, structure). A special attention was devoted to the non-linearity of soil, the development of plastic hinges in the piles and the influence of the soil-pile interface on the seismic response of the soil-pile-structure. The study was conducted using a three-dimensional modeling using the program FLAC 3D. The thesis is presented in three chapters : The tirst chapter presents a literature review of research work related to seismic behaviour of pile foundations.The second chapter includes a three-dimensional analysis of seismic behavior of soil-pile-superstructure taking into account the effect of soil plasticity. The study was conducted on various aspects of the interaction soil-pile-structure. the influence of mechanical parameters of soil and pile. the geometric configuration of the piles groups and the influence of seismic loading and its frequency content.The third chapter deals with specific aspects of the problem. including the development of plastic hinges at the top of the pile. the modeling and the influence of pile-soil interface and behavior of reinforced structures
Kamdem, Mbopda Alain. "COMPORTEMENT MÉCANIQUE ET PHYSICO-CHIMIQUE DES BÉTONS DE SOL SOUMIS A HAUTE TEMPÉRATURE." Electronic Thesis or Diss., CY Cergy Paris Université, 2023. http://www.theses.fr/2023CYUN1225.
Soil concrete is a material produced by mixing soil with a hydraulic binder. It is a possible solution in today's construction industry for works with low compressive strengths, such as the reinforcement of road foundation soils, waterproofing screens, outdoor landscaping for car parks (paving) and earth retaining screens. This material is produced in situ using the soil in place during construction projects, and as opposed to ordinary concrete, its use makes it possible to reduce the carbon footprint associated with transporting aggregates to construction sites. Due to its very high porosity of between 25 and 65% (Denies et al., 2012), soil concrete structures are subject to significant damage affecting their stability when exposed to high temperatures, H/S cycles and carbonation. Given the wide range of cementitious products available on the market, and the variability in the nature of the soil and its grain size, it is important to have a better understanding of the physical and mechanical properties of soil concrete, through laboratory studies to assess its performance. It is with this aim of improving understanding that this research aims to study the mechanical and physico-chemical behaviour of soil concrete subjected to high temperatures and its durability. To do this, we used two natural soils (laterite and clayey sand) and three types of binder: CEM I 52.5, CEM II 42.5 and CEM III 32.5. The experimental work carried out aims firstly to characterize the various constituents of soil concrete (soil and cement). Then, to formulate the soil concrete for different cement contents (150, 200, 250, 300 kg/m3) and for a constant workability of between 32 and 33 cm corresponding to a self-compacting soil concrete. The soil concrete was then characterized physically (density, entrapped air, etc.) and mechanically (uniaxial compression, static modulus of elasticity, etc.). These characterizations were completed by a mineralogical (XRD) and microstructural (SEM) study. Durability tests (H/S cycles and carbonation) and high-temperature tests were carried out on soil concrete specimens aged for 90 days in water, followed by physico-chemical and mechanical characterization. The results obtained for compressive strength show higher values for formulations with CEM III 32.5, followed by CEM I 52.5 and finally CEM II 42.5. Porosity values range from 43 to 62% and are lower for formulations with CEM III 32.5, followed by CEM I 52.5 and finally CEM II 42.5. At high temperatures, formulations made with CEM I 52.5 hold up better than formulations with CEM II 42.5 and CEM III 32.5. The aim is to offer stable formulations for different applications
Ngo, Duc chinh. "Développement d’un nouveau éco-béton à base de sol et fibres végétales : étude du comportement mécanique et de durabilité." Thesis, Bordeaux, 2017. http://www.theses.fr/2017BORD0885/document.
The ecological design of structures and the sustainable development is nowadays of high importance in the construction industry. Thus, alternative building materials such as soil concrete containing a proportion of various ecological components are of high importance nowadays. The aim of producing ecological concrete is to reduce the consumption of cement and thus the CO2 production, to provide alternatives to the impoverishment of resources and to reduce the energy consumption in the production process.In recent years, many changes have been observed in the construction methods with the aim to replace traditional concrete by alternative construction materials such as concrete containing a high proportion of various ecological component called "green" while maintaining acceptable properties for the desired application. For instance, constructions made of cost effective raw soils are of real interest since the thermal and acoustic properties are more important than that of ordinary concrete. However, more researchs are needed in order to have a better understanding of their mechanical properties and their durability.This study aims to optimize the composition of a new ecological concrete constituted of upgraded excavated soil. Several soil concrete mixtures, composed of different proportions of clayey soil, sandy soil and small quantities of cement, lime and hemp fibers have been tested. The mineralogy and chemical composition of clayey soil was studied by X-ray diffraction (XRD) analysis, and by Environmental Scanning Electron Microscopy (ESEM) coupled with the X-Ray Energy Dispersive Spectrometry (EDS). The casting of the concrete mixtures has been realized by vibration, as ordinary concrete, to obtain the required workability on construction sites.Compressive tests have been carried out on samples at different curing time and conditions. The ultrasonic non-destructive technique has been used for monitoring the hardening of soil concrete in function of the curing conditions. As soil concrete presents important volumetric change that can cause the infiltration of water and impact their durability, an experimental investigation on autogenous and drying shrinkage is reported. Water porosity and water absorption tests have been also carried out to evaluate the transfer property of the porous material. The carbonation of this concrete was also evaluated. The durability of the soil concrete was examined by following the deferred deformations and more particularly the endogenous shrinkage and desiccation as well as the flexural creep
Xiao, Xiaoting. "Détermination de gradients de teneur en eau dans les bétons par méthodes électromagnétiques." Nantes, 2015. https://archive.bu.univ-nantes.fr/pollux/show/show?id=fe3c690d-0711-4ffc-964a-9649849c11f2.
Considering the aging problems of civil engineering structures induces the evaluation of durability indicators (such as porosity) and durability monitoring parameters (such as water content and chloride content). From the electromagnetic (EM) non-destructive testing, Ground penetrating radar (GPR) is used by surveying permittivity inside concrete. The general study is composed of three objectives. Firstly, establish a physical and mathematical interaction between the waves and the materials. To better understand the propagation of EM waves inside the material, we have studied on several dispersion models characterizing the dielectric properties of concrete, and used Debye’s model and Jonscher’s model getting good working performance. Secondly, develop a new method for GPR to detect the gradients of relative permittivity in a dispersive material. With knowledge of the speed of radar waves travelling through the medium, we are able to know the relative permittivity of the material. As the material can form a waveguide for EM waves. The phase velocity of the guided EM waves is used to extract the dielectric and geometric information of it. Then, a new inversion method is implemented to estimate the dielectric permittivity and geometry of the waveguides. The one-layer waveguide is developed into multi-layer waveguide by a dielectric mixing model: parallel model. Thus, the new multi-layer waveguide model is validated both on synthetic and experimental data. Finally, monitor water transferring inside the concrete slabs with the new developed method, the results being compared with those from gammadensimetry, considered as reference
Laurens, Stéphane. "Aptitude de la technique radar à la caractérisation du béton d'enrobage - Aide au diagnostic de la corrosion des armatures." Toulouse, INSA, 2001. http://www.theses.fr/2001ISAT0026.
The development of non-destructive testing in civil engineering is related to the aging of structures. This aging is usually accompanied by some changes in the properties of construction materials, which call the needs concerning the mechanical behaviour, the service ability or the aesthetic characteristics of the structure into question. The aim of this study is to adapt radar technology to the physical characterisation of concrete, in order to highlight the conditions leading to reinforcement corrosion (main cause of damages). Indeed, experimental results on concrete laboratory samples show some interesting aptitudes to the assessment of concrete humidity, and chloride contamination. A specific application to the corrosion of reinforcement of concrete bridge decks with asphalt cover is also developed and verified on site through a comparison with half-cell potential measurements. The approach is just consisting in mapping the reflectivity of asphalt-concrete interface in order to locate humidity contrasts and, thus, areas presenting a high corrosion probability. At least, speed, easiness, reliable and non-destructive measurements are qualities, which give to the radar technique a great interest for large scale auscultation
Camba, Castenada José Luis. "Comportement face aux séismes de cinq bâtiments en béton précontraint situés dans la ville de Mexico." Marne-la-vallée, ENPC, 1991. http://www.theses.fr/1991ENPC9114.
This study deals with the structural behaviour and the analysis of the seismic response of prestressed concrete buildings to the earthquake ocurred in Mexico City in september 1985. First, the overall effects of the earthquake on buildings are summarized with specific consideration on the performance of prestressed concrete buildings. Secondly, for five typical buildings, linear analysis of the dynamic response were performed for tridimensionals models, with due consideration of the soil-structure interaction. Additionally, for some buildings, non-linear analyses were performed on planar models representing the behavior of the complete structure. The computed response has been compared with the observed behavior and the main dynamic properties of the models were checked against those derived from ambient vibration tests performed on the buildings. A good approximation was found between computed and measured natural periods of vibration of the structures, when the displacements and rotations at the base of the building due to the deformation of the soil were taken into account. In general terms, the computed response of the building under the effet of a ground motion representative of the one that should have affected it in the 1985 earthquake, corresponded reasonably well the observed performance of the buildings. Nevertheless, in some cases the analysis indicated that the buildings should have eperienced a greater non-linear behavior than what can be percieved from their level of damage. Some reasons for these differences are advanced. Some recommandations about earthquakes resistant design of prestressed concrete buildings are given. The importance of providing lateral stiffness by shear walls of bracing, and of achieving ductility and continuity through ordinary reinforcement, is stressed
Vu, Xuan Hoa. "Comportement des collecteurs renforces : - prise en compte des interfaces et de "l'histoire de l'ouvrage"." Lyon, INSA, 1997. http://www.theses.fr/1997ISAL0060.
Inserted into a French national project, this work consists to analyze the mechanical behavior of old masonry sewers reinforced by gunite. This present report synthesizes the results of the analysis, undertaken by means of the numerical modelling. In broaching main problems linked to this reinforcement type, we emphasize the « Support-Reinforcement » interface effect. For this last, an experimental characterization is undertaken and a existing numerical model is improved to take into account the adhesion. With the improved interface model and the technique of the matter addition on a deformed structure, also developed within the scope of this work, the taking into account of the interfaces and the « structure history » is possible. The modelling performed allows to evaluate the influence, on the global behavior of reinforced sewers, of different factors such that the reinforcement characteristics, the shrinkage effect, the interaction « Sail-Structure », the interface mechanical properties and the existent structure state. Results of the modelling show the role of the « Support-Reinforcement » liaison, the « Sail-Structure » interaction and the shrinkage harmful effect. These results allow to draw practical conclusions and to propose technical solutions in the objective to reduce the shrinkage effect and to improve the reinforcement efficiency
Stavropoulou, Eleni. "Comportement différé des interfaces argilite/béton : caractérisation et modélisation." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAI077/document.
The management of radioactive waste is an important environmental issue, in particular in the countries where nuclear power is generated. In Eastern France, The French National Radioactive Waste Management Agency (ANDRA) is investigating the behaviour of a deep geological repository in Callovo Oxfordian clay-rock (COx). The sealing of the underground repository tunnel, is partly ensured by a mechanical barrier made of concrete, directly in contact with the rock. Such projects require prediction of irreversible deformations over a large time scale, in order to assess the durability of the confinement. Even though the physical properties of most of the materials involved (rock and concrete for example) are now reasonably known, there have been only a few studies of the behaviour of the contact interfaces between these materials. This subject is of great importance for predicting a tentative life-time of nuclear waste storage facilities.During this PhD work the mechanical behaviour of the clay-rock/concrete interface has been investigated. The Callovo Oxfordian is considered as an ideal geological barrier because of its extremely low permeability. However, it is governed by a thermo-hydro-mechanical behaviour of high complexity, which is continuously under investigation with both laboratory and in-field experiments. The preparation of the interface samples involved a short study on the liquid water uptake in the unconfined clay-rock. In order to characterise the short-term behaviour of the interface, direct shear tests have been performed under different boundary conditions, using the BCR3D experimental device located in 3SR.The investigation of the long-term mechanical behaviour of the interface required the design of a new experimental apparatus. One of the most important parts of this study includes the conception and development of SInC Box -- Shearing Interfaces Creep Box -- an original device for the study of delayed deformations of interfaces. Different sets of creep tests have been performed on the interface samples allowing the investigation of the interface's delayed behaviour in shear. The post-creep mechanical behaviour of the clay-rock/concrete interface has also been exploited exhibiting great interest. The experimental results of the delayed response have been further analysed using analytical visco-elastic models and numerical simulations
Книги з теми "Béton sol":
Aubé, Richard. Sortez de vos pantoufles en béton. Outremont, Québec: Québecor, 2007.
Aubé, Richard. Sortez de vos pantoufles en béton: L'art du dépassement. 2nd ed. Montréal: Éditions Québecor, 2009.
ahmed, Baha. Etude d'un Projet : Calcul de Structure en Béton Armé et Renforcement du Sol Par Colonnes Ballastées: Rapport d'étude Technique. Independently Published, 2018.
Bernard, Stefan. Shotcrete: Elements of a System. Taylor & Francis Group, 2010.
Bernard, Stefan. Shotcrete: Elements of a System. Taylor & Francis Group, 2010.
Bernard, Stefan. Shotcrete: Elements of a System. Taylor & Francis Group, 2010.
Bernard, E. S. Shotcrete: Engineering Developments. Taylor & Francis Group, 2020.
Bernard, Stefan. Shotcrete: Elements of a System. Taylor & Francis Group, 2010.
Bernard, E. S. Shotcrete: Engineering Developments. Taylor & Francis Group, 2020.
Bernard, E. S. Shotcrete: Engineering Developments. Taylor & Francis Group, 2020.