Dissertations / Theses on the topic 'Sols argileux'
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L'Ecuyer, Nicolas. "Stabilité sismique des talus naturels argileux." Sherbrooke : Université de Sherbrooke, 1998.
Find full textLtifi, Mounir. "Étude expérimentale du vieillissement d'un sol argileux." Vandoeuvre-les-Nancy, INPL, 1998. http://www.theses.fr/1998INPL103N.
Full textMaison, Tatiana. "Analyse à l'échelle microscopique des phénomènes d'humectation et de dessiccation des argiles." Phd thesis, Ecole Centrale Paris, 2011. http://tel.archives-ouvertes.fr/tel-00594238.
Full textNowamooz, Hossein. "RETRAIT/GONFLEMENT DES SOLS ARGILEUX COMPACTES ET NATURELS." Phd thesis, Institut National Polytechnique de Lorraine - INPL, 2007. http://tel.archives-ouvertes.fr/tel-00331856.
Full textL'ensemble des résultats expérimentaux permet de déterminer les surfaces de charge : la limite de séparation de micro/macro (Lm/M) ; la surface de chargement-effondrement (LC) et la surface de comportement saturé (SCS). La succion limite entre la micro- et la macrostructure (Lm/M) dépend parfaitement de la structure interne et du diamètre qui délimite les deux familles de pores. L'évolution de la pression de préconsolidation en fonction de la succion imposée est présentée par la surface LC. Les courbes de compressibilité sous différentes succions convergent vers la courbe correspondant à l'état saturé sous de fortes contraintes appliquées. La pression à partir de laquelle, le sol continue son chemin sur la courbe du comportement normalement consolidé est appelée la pression de saturation (Psat). Plus la succion imposée est élevée, plus la charge nécessaire pour atteindre cette pression de saturation est importante. La surface SCS présente la variation de la pression de saturation en fonction de la succion imposée. Nous pouvons considérer que les surfaces de charge SCS et LC sont uniques pour les sols denses cependant elles se superposent à la fin des cycles de succion pour les sols lâches. Les cycles hydriques augmentent aussi la limite (Lm/M) entre la micro- et la macrostructure pour les deux sols.
Montgrain, Fabienne C. "Prévision de la performance des argiles Champlain comme barrières à la migration des contaminants dans les sites d'enfouissement." Sherbrooke : Université de Sherbrooke, 1997.
Find full textGuillot, Xavier. "Couplage entre propriétés microscopiques et comportement mécanique d'un matériau argileux." Châtenay-Malabry, Ecole centrale de Paris, 2002. http://www.theses.fr/2002ECAP0742.
Full textRolland, Sébastien. "Transfert hydrique dans des sols argileux gonflants : influence du confinement." Vandoeuvre-les-Nancy, INPL, 2002. http://docnum.univ-lorraine.fr/public/INPL_T_2002_ROLLAND_S.pdf.
Full textDescription of imbibition and swelling mechanisms in clayey soils represents an important stake in different scientific domains such as agronomy, geotechnics or petroleum industry. The aim of the present work is to show the effects of hydromechanical couplings during imbibition in a swelling clayey medium, under different confinement conditions. Our material is a bentonite-silt mixture, prepared with a known water content and compacted with a double-piston technique. This method allows us to produce uniform soil samples, in terms of humidity and bulk density. Experiments related to bottom imbibition are then carried out for three types of mechanical boundary conditions (free, oedometric, fixed volume). The non-intrusive dual-energy gamma-ray technique is used to assess the local variation of bulk density and humidity. Finally, the three imbibition kinetics are compared for each experiment in tèrms of hydraulic diffusivity, described in a Lagrangian way
Pham, Tuan Long. "Erosion et dispersion des sols argileux par un fluide." Phd thesis, Ecole des Ponts ParisTech, 2008. http://tel.archives-ouvertes.fr/tel-00353451.
Full textTabbal, Diala. "Impact des fissures sur la sécheresse des sols argileux." Thesis, Lille 1, 2013. http://www.theses.fr/2013LIL10070/document.
Full textThe objective of this work is to study the effect of desiccation cracks on the thermo-hydro-mechanical behavior of clayey soils.The study includes an experimental study to characterize the influence of cracks on the drying process of clay samples and a numerical study in order to present the impact of cracks on the soil-atmosphere interaction.In the first phase of this study, an experimental work performed in the laboratory to characterize the influence of cracks on drying soil was conducted. Drying tests were conducted on samples of intact and cracked soil where the evolution of the water content and cracking due to drying were monitored. In the second phase of this study, the influence of cracks on the thermo-hydro-mechanical behaviour of clayey soil is presented. A two-dimensional numerical model of soil-atmosphere interaction has been developed considering the presence of cracks. The model takes into account the thermo- fluid coupling of an unsaturated clay soil.The model is used to simulate the evolution of evaporation during the drying process. It shows the impact of cracks on the suction development and water content evolution as well as the air entry value. This study also proposes a simple approach to the consideration of cracks in the soil-atmosphere interaction. In the last part of this work, the influence of cracks on the mechanical behaviour of fine soils is presented and discussed
El-Ghorayeb, Nehmé Antoine. "Fluage des sols argileux et rôle d'une surface de faiblesse." Châtenay-Malabry, Ecole centrale de Paris, 1988. http://www.theses.fr/1988ECAP0050.
Full textKhemissa, Mohamed Magnan Jean-Pierre Josseaume Henri. "Etude des propriétés mécaniques de l'argile molle de Guiche : vallée de l'Adour /." Paris : Laboratoire central des ponts et chaussées, 1993. http://catalogue.bnf.fr/ark:/12148/cb35611186c.
Full textKacprzak, Grzegorz Boutin Claude Doanh Thiep. "Etude du comportement mécanique des mélanges sable / argile." Villeurbanne : Doc'INSA, 2006. http://docinsa.insa-lyon.fr/these/pont.php?id=kacprzak.
Full textMasutti, Françoise. "Étude expérimentale de la sédimentation-consolidation et de l'acquisition de résistance d'un sol fin." Vandoeuvre-les-Nancy, INPL, 2001. http://www.theses.fr/2001INPL579N.
Full textEl-Ghorayeb, Nehmé Antoine. "Fluage des sols argileux et rôle d'une surface de faiblesse." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376138951.
Full textGuiras-Skandaji, Houda. "Déformabilité des sols argileux non saturés : étude expérimentale et application à la modélisation." Vandoeuvre-les-Nancy, INPL, 1996. http://www.theses.fr/1996INPL051N.
Full textAbdulkader, Khattab Suhail Adrees. "Etude multi-échelles d'un sol argileux plastique traité à la chaux." Orléans, 2002. http://www.theses.fr/2002ORLE2028.
Full textValles, Vincent. "Modélisation des transferts d'eau et de sels dans un sol argileux : application au calcul des doses d'irrigation /." Strasbourg : Université Louis Pasteur, Institut de géologie, 1989. http://catalogue.bnf.fr/ark:/12148/cb350524956.
Full textAlshihabi, Omran Shahrour Isam Mieussens Claude. "Étude en laboratoire du comportement d'un sol compacté non saturé influence des cycles de séchage-humidification /." [S.l.] : [s.n.], 2002. http://www.univ-lille1.fr/bustl-grisemine/pdf/extheses/50376-2002-167-168.pdf.
Full textTabani, Philippe. "Transfert hydrique dans des sols déformables." Vandoeuvre-les-Nancy, INPL, 1999. http://www.theses.fr/1999INPL115N.
Full textMonfared, Mohammad. "Couplages température-endommagement-perméabilité dans les sols et les roches argileux." Phd thesis, Université Paris-Est, 2011. http://pastel.archives-ouvertes.fr/pastel-00657206.
Full textCappelin, Isabelle. "Synthèse de liants pouzzolaniques : application au traitement des sols fins argileux." Toulouse 3, 1992. http://www.theses.fr/1992TOU30280.
Full textAlshihabi, Omran. "Étude en laboratoire du comportement d'un sol compacté non saturé : influence des cycles de séchage-humidification." Lille 1, 2002. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/2002/50376-2002-167-168.pdf.
Full textGuiresse, Agnès Maritchù. "Drainage en sols de boulbènes : relation entre les caractéristiques morphologiques et les propriétés hydrodynamiques des sols." Toulouse, INPT, 1989. http://www.theses.fr/1989INPT003A.
Full textTaibi, Hadj. "Stabilisation des sols par des liants hydrauliques." Lyon, INSA, 1985. http://www.theses.fr/1985ISAL0007.
Full textThe aim of this work is to study the stabilisation by hydraulic binders of clay soils or other. The results can be used by developing countries in constructions and this inn a very economical way. The main points studied are the evolution of the mechanical characteristics and the stability in water of two soils having different mineralogical nature (clay soil and loses). The stabilisation is obtained with different ratios of cement, burnt lime and artificial pozzolana. The use of physico-chemical technics such as X-ray diffraction and thermal analysis and measurement of the compressive strengths of mini-cylinders have allowed-us to -study the evolution of mechanical characteristics of dry and wet cylinders during a six months period, propose an ideal mechanical behaviour for each binder used, - define the nature of the formed hydrates in clay-soil (essentially the hydrated dicalcic silicate C2SH and the hydrated tetracalcic aluminate C4AH10 and AH13). The study also rev elated the damaging rôle played by lime which has a tendency to transform to calcic carbonate and by the same way shows us that a kaolin clay is little reactive to this type binder. The addition of an artificial pozzolana (the metakaolin) which requires the presence of lime in order to hydrate allows us to avoid the formation of calcic carbonate. In any way, the observed mechanical performances (even though they were less satisfactory than those obtained with cement stabilisation) and the behaviour of this type of binder in water were very satisfactory and thus hint for a reconsideration of the use of lime as a stabiliser
Barré, Pierre. "Interactions plantes-minéraux argileux dans une perspective écologique." Paris 6, 2007. http://www.theses.fr/2007PA066009.
Full textClay minerals are key components for soil and ecosystem functioning. My PhD work centred on the modifications related to plant activity. My work focused on two types of modifications: short term modifications of interlayer site occupations related to potassium (K) dynamics, and longer term modifications of the clay sheet structure in the surface soil influenced by K and Si inputs by plants. The first part of my work established that 2/1 clay minerals behave as a K reservoir in soils: K inputs (throughfall, litter mineralization, fertilization) lead to the formation of “closed” layers collapsed to 1 nm by anhydrous K ions, conversely roots may take up these anhydrous K ions which leads to clay layer ”opening”. The filling or emptying of this K reservoir can be qualitatively and quantitatively studied through X-ray diffraction. In the second part, I showed that some soil profiles exhibit an increase of Si and K contents near the surface. This paradoxical distribution of mobile elements Si and K is explained by their translocation by plants. A model based on this phenomenon revealed that plant translocation can balance element loss through lixiviation and stabilize Si-rich and K-rich clay minerals in the surface soil horizon. My work suggests that plants use and stabilize the soil K reservoir composed of the 2/1 clay minerals
Kacprzak, Grzegorz. "Etude du comportement mécanique des mélanges sable / argile." Lyon, INSA, 2006. http://theses.insa-lyon.fr/publication/2006ISAL0021/these.pdf.
Full textSand/clay mixtures are the representative models of the natural deposits as well as many artificially reconstituted grounds usually employed in civil engineering (road fill, storage of waste fill). The hydraulic and mechanic behaviour of these soils has not been clarified yet. The overall properties of sand/clay mixtures are very often described as a function of percentage share of the components using well known engineering characteristics of pure clay or clean sand. However, in the nature the soil components (sand and clay) interact with each other to influence the behaviour of the mixture. The existing knowledge on the geotechnical properties of such soils shows that there is a lot of phenomena which must be better explained. In view of the performed studies the present research is consecrated to investigation of the clay/sand mixtures staying with water content nearest the natural conditions (in the interval of Atterberg limits i. E. Between w_P and w_L of used clay). The authors examined the blends with different sand and clay water content. This PhD thesis presents the studies on one-dimensional consolidation, permeability characteristics as well as triaxial behaviour of heterogeneous soils composed of sand and clay. The author also made an attempt to compare the experimental results with analytical methods in predicting global characteristics of this type of soil within the homogenisation frameworks
Nasreddine, Khaldoun. "Effet de la rotation des contraintes sur le comportement des sols argileux." Phd thesis, Ecole des Ponts ParisTech, 2004. http://pastel.archives-ouvertes.fr/pastel-00000957.
Full textVo, Thi Dong. "Modélisation numérique et analytique de la fissuration de séchage des sols argileux." Thesis, Paris Est, 2017. http://www.theses.fr/2017PESC1214/document.
Full textThis work focuses on the analysis of desiccation cracking by numerical and analytical approaches. The initiation and the propagation of cracks are investigated by using a finite element code including cohesive joints elements. Coupling between the hydraulic and the mechanical processes in the presence of discontinuities is considered. The cohesive crack’s law is applied to simulate the initiation and the propagation of cracks.Results of a laboratory experiments performed on slurry clay soil are first used to evaluate the proposed numerical modelling method. The results show that the method is able to reproduce the main trends of desiccation process. The importance of boundary conditions are also discussed. Second, an energy approach is proposed to study the initiation of cracks. The energies before and after crack initiation are estimated by both numerical and analytical solutions. The energy released by cracking is then compared to the crack energy to discuss crack initiation conditions. The analysis shows that the energy criterion is reached before the stress criterion, and this can explain unstable crack propagation at the beginning. Third, the development and the geometry of desiccation cracks are studied by numerical simulation with several cohesive joints. The numerical results show that cracking occurs sequentially to form different cracks families with a dichotomy process (the subsequent cracks appear at the middle of two existing neighboring ones). The cracks in each family appear simultaneously and reach an identical ultimate depth. From the numerical results and additional analytical analysis, empirical correlations are proposed to predict the spacing and crack depth. Finally, some preliminary studies are performed showing that the proposed numerical method can be used to predict the desiccation crack phenomena observed on geotechnical earth structures
Afes, Moussa. "Contribution à la détermination des paramètres de gonflement des sols, et étude de l’argile de Mila (Algérie) traitée à la chaux." Lyon, INSA, 1996. http://www.theses.fr/1996ISAL0046.
Full textThis work is the study of the expansive clay of Mila (Algeria). It is not aimed as resolving swelling problems which could take place in Algeria, but a working aid to help designers, contractors, etc. . . In decision making when conducting foundation projects in these areas. The first part of this work deals with literature review of swelling mechanisms, methods and measuring procedures as well as the stabilisation of clayey-soils. The second part quantifies the swelling phenomenon, the physical and mineralogical characteristics of treated and untreated expansive clay samples. Two new apparatus were developed, the first for monitoring the swelling kinetic and seepage, and for varying the hydration mode, the second for measuring the swelling pressure at a virtually constant volume under controlled volume of infiltration water. A study of swelling variation with : time, thickness, hydration mode, applied stress, clods size and infiltration water volume was conducted on untreated clay samples. However; studied of treated clay were carried out on the variation of swelling with : lime percentage, time of treatment, conservation mode, moisture, and the evolution of the physical and mineralogical characteristics with he added lime percentage, time of treatment and sodium carbonate percentage. Finally, the problem of retained lime after leaching was also treated
Delisée, Annie. "Etude expérimentale, modélisation et optimisation de la rétention du césium sur des matériaux argileux." Reims, 1998. http://www.theses.fr/1998REIMS008.
Full textAit, Saadi Lotfi Didier Gérard Kastner Richard. "Méthodologie de contrôle de l'homogénéité et de la perméabilité des barrières argileuses." Villeurbanne : Doc'INSA, 2005. http://docinsa.insa-lyon.fr/these/pont.php?id=ait_saadi.
Full textLiu, Hua. "Étude des comportements de sols naturels." Châtenay-Malabry, Ecole centrale de Paris, 1999. http://www.theses.fr/1999ECAP0649.
Full textLi, Zhong-Sen. "Etudes des propriétés hydromécaniques des sols argileux non saturés proches de la saturation." Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2015. http://www.theses.fr/2015ECAP0023/document.
Full textThis thesis present an experimental study of an unsaturated clayey soil close to saturation, whose degree of saturation is generally above 70%.After characterizing the physical and mechanical properties of the material, several experimental methods were used to study the behaviour and some pathologies of the compacted soil, such as rutting and quilting.A systematic study of the behaviour of the compacted soil on drying-wetting paths starting from different initial states was carried out, completed by suction measurements using filter-paper and psychrometer. Mercury intrusion porosimetry tests gave an insight of the soil microstructure.The thesis also addressed the question of the pore pressure variations of the compacted soil on undrained triaxial path using the axis-translation technique, where some improvements and modifications of the testing device were proposed
Youdjari, Djonkamla. "Caractérisation et simulation numérique du comportement volumétrique de sols argileux gonflants de N'Djaména." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27827/27827.pdf.
Full textExpansive clay soils represent a problematic reality in our world. They threaten specifically semiarid climatic regions, including that of Chad. The variation of water content in the soil, due to the alternating dry / rainy seasons, produces potentially swelling clays with volumetric instabilities. The consequences resulting from this swelling are severe cracks in buildings, roads, dams... Clay samples collected at the N'Djamena test site in Chad have been tested in the laboratory. The tests that were conducted are: X-ray diffraction, Atterberg limits, sedimentation analysis, relative density measurements and the classical oedometer tests. The major conclusion that can be drawn from this study is that the N'Djamenas’ clays are classified as potentially medium to high swelling clays. The ABAQUS finite element software was used to simulate and corroborate the volumetric behavior of N’Djamena clays. A comparison of the simulation results with results obtained from oedometer tests indicates an excellent conformity.
Hébert, Kevin. "Caractérisation des sols argileux du secteur de l'Isle-Verte et Trois-Pistoles, Québec." Master's thesis, Université Laval, 2016. http://hdl.handle.net/20.500.11794/27145.
Full textHACHANI, LAHCENE. "Consolidation et impermeabilisation des sols argileux par electro-injection du silicate de sodium." Paris 6, 1995. http://www.theses.fr/1995PA066104.
Full textLasledj, Abdelmadjid. "Traitement des sols argileux à la chaux : processus physico-chimique et propriétés géotechniques." Thesis, Orléans, 2009. http://www.theses.fr/2009ORLE2044/document.
Full textLime treatment techniques have largely been developed across the word mainly in civil engineering works. The context of sustainable development implies to improve the rate of reuse of clay soils in the earthworks. This study demonstrates that whatever the plasticity and poor hydromechanical properties of clay soils, the lime treatment is effective. Experimental results on highly plastic clay soil show that all geotechnical properties progress with the lime treatment: the swelling is eliminated, the plasticity is reduced greatly and the strength increases. Monitoring the physicochemical lime-clay reaction allowe to determine the quantities of lime required for short term and/or long term changes in the hydromechanical behaviour of treated clay soils. The cation exchange pursued by the pozzolanic reactions induced mineralogical, textural and structural changes in the treated soil. New hydrates are formed through the consumption of lime and clay. These hydrates contour the edges of clay particles and formed a layer which coat and provide the link between particles. These changes are well behind improvements in geotechnical properties of treated soil. The research conducted in this thesis shows that the process and the kinetics of lime-clay reactions depend on the exchangeable cation, the amount of lime available, to the curing temperature and the structure of the clay smectite, illite and kaolinite
Lemaire, Thibault. "Couplage électro-chimio-hydro-mécaniques dans les milieux argileux." Vandoeuvre-les-Nancy, INPL, 2004. http://www.theses.fr/2004INPL116N.
Full textThe aim of fuis study is to understand coupled phenomena that occur in swelling porous materials like clays. Electro-chemo-hydro-mechanical contributions are taken into account to analyze transfers in such minerais. Ln a first fart, an general discussion is proposed to introduce mineralogical and physico- chemical considerations of clayey media. An important objective of this chapter is to show the crucial role of the microstructure. Ln a second part is presented an imbibition test in a MX80 bentonite powder. The hydraulic diffusivity versus water content curve's decrease is explained thanks to a double porosity model that shows the progressive collapse of mesopores due to swelling effects at the microscale. Thus a multi- scale analysis is necessary to weil describe clayey media behaviour. The third chapter exposes such a multi-scale modelling (periodic homogenization). It is based on the double-layer theory and introduces an innovative concept of virtual electrolyte solution. First numerical results are given in a simple geometry (parai lei platelets). Ln the next part are proposed numerical simulations of two kinds : response of the system to a chemical gradient and simulation of electro-osmosis. The end of this chapter puts into relief the necessity to integrate pH effects in the model. In the last part, chemical surface exchanges are incorporated in the modelling to understand pH and ionic force roles in electro-osmotic process
Al, Majou Hassan. "Etude et prédiction des propriétés de rétention en eau des sols : prise en compte de la composition et de l'état structural du sol." Orléans, 2008. https://tel.archives-ouvertes.fr/tel-00286622.
Full textBelkacem, Moussai. "Etude en laboratoire du compactage statique et de la perméabilité des sols fins argileux." Lyon, INSA, 1993. http://www.theses.fr/1993ISAL0014.
Full textThe laboratory study of a static compaction and permeability of fine clayey soils leads to definition of a protocol of measurement of permeability directly in the compaction mold. The advantage of this method is that it allows the study of the relation between water content, compactness, and permeability faster and more precisely than the method of dynamic compaction. These relations are essential for the conception and the realisation of impervious barrier. The experiments used on various soils show that static compaction is well adapted for fine clayey soils. They have shown for these study specimens, the existence of an optimum water content for which the permeability is least. This optimum seems to be little dependant of the compaction energy. We propose some correlations, obtained from simple and less costly experiments to obtain these characteristics of standard Proctor optimum and to estimate the stress of static compaction which allow the definition of the standard proctor optimum density. We equally present a study about the influence of the size of clods and the compaction method on the permeability of soils, as well as a comparative study on the permeability of compacted in sit by a pneumatic compactor and compacted statically in a laboratory under the same conditions of water content and dry density. A indirect control methodology of permeability with an application example on silt of Rouge Montier is also proposed
SORANI, VALENTINO. "Evolution structurale de la tranchee de drainage : sols argileux lourds de l'eocene du cher." Paris, Institut national d'agronomie de Paris Grignon, 1988. http://www.theses.fr/1988INAPA015.
Full textNguyen, Pham Phuong Thao. "Etude en place et au laboratoire du comportement en petites déformations des sols argileux naturels." Paris Est, 2008. https://pastel.hal.science/tel-00353428v1.
Full textThe recent developments of the civil engineering create multiples problems of soils-structure interactions. The comprehension of soils and structures behaviour as well as soil-structure interactions therefore becomes a growing and important role in the geotechnical research. This requires a reliable and pertinent estimation of soils deformation and resistance characteristics. The determination of mechanical parameters, especially modulus and knowledge of its evolution from small to large strains and variation according to the stress paths followed become important issues. To obtain the parameters characterizing the deformation and rupture of soils, two methods are currently proposed as follows: 1) Intact soil sampling and sophisticated laboratory tests, 2) In situ testing more or less rustic. This thesis presents a study of the behaviour of a natural clay of Cubzac-les-Ponts experimental site using different tests allowing the investigation in laboratory and in situ of the small strains range. The idea is to realize tests in laboratory with devices such as consolidometer, triaxial with local measurement system, and and in situ with innovating equipments such as the self-boring pressuremeter (P. A. F 2000), the triaxial in situ (T. I. S) and slotted tube with inside disintegrating tool and mud circulation (S. T. A. F). Laboratory studies permitted to determine the shape of the yield surface and the soil behaviour when the stress path attains this surface. Attention was paid to analyze the evolution of the yield surfaces with soil loading history, test procedure and to study the variation of the modulus with strain levels, depth of samples, and stress path. For in situ tests, the new self-boring pressuremeter (P. A. F 2000), equipped with radial transducers and geophones allowed establishing a continuous profile of the modulus from small to large strains. The triaxial in situ (T. I. S) tried to recreate in situ the geometry, boundary conditions of a triaxial test as in laboratory and to realize all types stress path imposed during triaxial tests. Our work presents a data synthesis collected from different tests in laboratory and in situ, and methods to investigate different strains levels also its evolution
Collas, Philippe. "Le drainage des sols lourds plus ou moins sodiques des marais de l'ouest de la France : étude expérimentale et modélisation." Toulouse, INPT, 1985. http://www.theses.fr/1985INPT006A.
Full textLétourneau, Maryse. "Effet du gel et du dégel sur les propriétés mécaniques et physiques des sols argileux." Thesis, Université Laval, 2012. http://www.theses.ulaval.ca/2012/29219/29219.pdf.
Full textNguyen, Pham Phuong Thao. "Étude en place et au laboratoire du comportement en petites déformations des sols argileux naturels." Phd thesis, Ecole des Ponts ParisTech, 2008. http://tel.archives-ouvertes.fr/tel-00353428.
Full text- le prélèvement d'éprouvettes « intactes » et l'exécution d'essais sophistiqués en laboratoire,
- les essais sur le sol en place, plus ou moins rustiques. Ce mémoire de thèse expose une étude du comportement d'un sol argileux naturel prélevé sur le site expérimental de Cubzac-les-Ponts en combinant différents types de chargement aptes à explorer le domaine des petites déformations au moyen d'essais au laboratoire et in situ. L'idée est de réaliser des essais en laboratoire à l'aide d'appareils tels que l'oedomètre, l'appareil triaxial de précision avec système de mesure locale, les capteurs piézo-électriques et la colonne résonnante et les essais en place en utilisant des matériels innovants comme le pressiomètre autoforeur (P.A.F 2000), le triaxial in situ (T.I.S) et le système de tubage autoforé (S.T.A.F). Le programme d'essais en laboratoire a permis de déterminer la forme de la surface de charge et le comportement des sols lorsque le chemin de contraintes atteint cette surface, à analyser l'évolution des surfaces de charge en fonction de l'histoire de chargement du matériau et de la procédure d'essai ainsi la variation des modules de déformation en fonction du niveau des déformations, de la profondeur et du chemin de contraintes. Lors des essais réalisés en place, le pressiomètre autoforeur de nouvelle génération (P.A.F 2000), équipé de palpeurs et de géophones, a permis de déterminer un profil continu de modules de déformation des très petites déformations aux grandes déformations. Le triaxial in situ (T.I.S) a essayé de récréer in situ les conditions aux limites maîtrisées d'un essai triaxial de laboratoire et de réaliser des essais triaxiaux. Ce mémoire présente également une synthèse des données collectées avec différents types d'essais de laboratoire et en place des méthodes d'essais adaptés pour tester les différentes échelles de déformations ainsi que l'évolution des modules de déformation.
Brais, Suzanne. "Impacts des opérations forestières sur la productivité à long terme des sols argileux de l'Abitibi." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq25388.pdf.
Full textLégère, Glen. "Étude technico-économique de la stabilisation à la chaux des sols argileux en voirie forestière." Mémoire, École de technologie supérieure, 2001. http://espace.etsmtl.ca/846/1/L%C3%89G%C3%88RE_Glen.pdf.
Full textBOUHERAOUA, ALI. "Influence de la variabilite des proprietes du sol sur la consolidation desmassifs de sols argileux." Paris 6, 1989. http://www.theses.fr/1989PA066562.
Full textSigala, Frédéric. "Etude de l'influence du sodium, apporté par une irrigation estivale, sur l'évolution de la couche superficielle d'un sol argileux sous l'effet de la pluie." Avignon, 1987. http://www.theses.fr/1987AVIG0003.
Full textTessier, Laurent. "Variabilité horizontale et verticale de la dégradation de l'atrazine et du 2,4-D dans le sol." Lyon 1, 1998. http://www.theses.fr/1998LYO10062.
Full text