Download or read book Etude num rique de la mod lisation thermo elasto plastique des sols non satur s written by Bahar Jenab-Vossoughi and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book LA MODELISATION DES SOLS NON SATURES ANALYSE NUMERIQUE written by HAFEDH.. ABIDA and published by . This book was released on 1912 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: AFIN DE MODELISER LE COMPORTEMENT DES SOLS NON SATURES SUR LES PLANS MECANIQUE ET DES ECOULEMENTS D'EAU ET D'AIR, ON ADOPTE UNE LOI DE COMPORTEMENT A VARIABLES INDEPENDANTES RELIANT LES INCREMENTS DE DEFORMATIONS DU SOL AUX VARIABLES DES CONTRAINTES TOTALES ET DES SUCCIONS AINSI QUE DES FONCTIONS NON LINEAIRES RELIANT LES COEFFICIENTS DE PERMEABILITE A L'EAU ET A L'AIR A L'INDICE DES VIDES ET AU DEGRE DE SATURATION. (1) LE SOL EST SUPPOSE ELASTIQUE ET LA NON-LINEARITE EST HYDRAULIQUE (EAU+AIR). L'APPLICATION DU PRINCIPE DES TRAVAUX VIRTUELS ET DE LA METHODE DES ELEMENTS FINIS LE RAMENE A LA RESOLUTION D'UN SYSTEME NON LINEAIRE ET NON SYMETRIQUE. LE TRAITEMENT NUMERIQUE CONDUIT A LA CREATION DES ELEMENTS FINIS BIDIMENSIONNELS DE CONSOLIDATION DES SOLS ISOTROPES NON SATURES DANS LE CODE CESAR-LCPC ET A LA MISE AU POINT D'UN ALGORITHME ITERATIF DE RESOLUTION CONTRIBUANT A LA PROGRAMMATION D'UN NOUVEAU MODULE DE RESOLUTION APPELE CSNS; (2) LE SOL EST SUPPOSE ELASTOPLASTIQUE ET LA NON-LINEARITE DEVIENT A LA FOIS HYDRAULIQUE ET MECANIQUE. CECI A NECESSITE L'EXTENSION DES PROPRIETES NUMERIQUES DES ELEMENTS FINIS DU MODULE CSNS PAR LA CREATION D'UN NOUVEAU MODELE DE COMPORTEMENT ELASTOPLASTIQUE APPELE MEINOS ENTRAINANT LA COMBINAISON DE LA METHODE DES CONTRAINTES INITIALES POUR LE TRAITEMENT DE LA NON-LINEARITE MECANIQUE. CETTE MODELISATION EST TESTEE SUR DES ALLIAGES UNIDIMENSIONNELS ET BIDIMENSIONNELS. LES RESULTATS NUMERIQUES MONTRENT QU'ON OBTIENT DES RESULTATS ENCOURAGEANTS TANT DU POINT DE VUE MECANIQUE QUE DU POINT DE VUE HYDRAULIQUE
Download or read book Proceedings of the 16th International Conference on Soil Mechanics and Geotechnical Engineering written by The Organizing Committee of the 16th ICSMGE and published by IOS Press. This book was released on 2005-09-12 with total page 3742 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 16th ICSMGE responds to the needs of the engineering and construction community, promoting dialog and exchange between academia and practice in various aspects of soil mechanics and geotechnical engineering. This is reflected in the central theme of the conference 'Geotechnology in Harmony with the Global Environment'. The proceedings of the conference are of great interest for geo-engineers and researchers in soil mechanics and geotechnical engineering. Volume 1 contains 5 plenary session lectures, the Terzaghi Oration, Heritage Lecture, and 3 papers presented in the major project session. Volumes 2, 3, and 4 contain papers with the following topics: Soil mechanics in general; Infrastructure and mobility; Environmental issues of geotechnical engineering; Enhancing natural disaster reduction systems; Professional practice and education. Volume 5 contains the report of practitioner/academic forum, 20 general reports, a summary of the sessions and workshops held during the conference.
Download or read book Contribution l tude et la mod lisation num rique des sols clou s written by Philippe Unterreiner and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: L'interaction entre un renforcement linéaire (clou) et un sol granulaire (sable) est étudiée à plusieurs échelles en vue de réaliser des calculs en déformation de murs en sol cloue. L'interaction entre un clou et un sol à l'échelle des grains est étudiée à l'aide d'un milieu continu généralisé avec microstructure rigide (milieu de Cosserat). Trois lois de comportement du sol : élastique anisotrope, rigide parfaitement plastique et élastoplastique avec écrouissage, ainsi que deux jeux de conditions aux limites microscopiques : statiques et cinématiques, sont considérées pour modéliser la formation des couches d'interfaces. Le lien entre les phénomènes de localisation surfacique (couche d'interface) et volumique (bande de cisaillement) est établi. L'interaction entre un lit de clous et la tranche de sol afférente du mur en sol cloue est étudiée dans le cas d'un chargement thermique (gel). Un modèle couplant les effets thermiques (pénétration du gel), hydrauliques (gonflements du sol gélif) et mécaniques (interaction sol-clou) est développé et valide à partir des mesures réalisées sur les soutènements en vraie grandeur de la Clusaz durant l'hiver 1980/1981. Des dispositions constructives innovantes sont proposées pour limiter les effets du gel. L'interaction entre les clous et le sol à l'échelle d'un ouvrage de soutènement est analysée afin de développer une correspondance entre le mur 3d et le modèle numérique calculé en déformations planes (calcul 2d). Les méthodes de détermination des paramètres mécaniques des matériaux à partir des essais in situ et en laboratoire sont analysées et comparées. Le calcul en déformation de la construction du mur expérimental en vraie grandeur clouterre-cebtp no. 1 est réalisée à l'aide de deux logiciels (cesar et flac) pour valider l'approche proposée
Download or read book Water in Road Structures written by Andrew Dawson and published by Springer Science & Business Media. This book was released on 2008-10-21 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Only book world-wide addressing this topic. The principal output of the European co-operative Action on "Water Movements in Road Pavements & Embankments". Provides unique guidance on assessing water condition and its affects on road performance. Provides unique guidance on assessing and ameliorating contaminant movement in pavement groundwater. Written by leading experts in Europe.
Download or read book Landslides Theory Practice and Modelling written by S.P. Pradhan and published by Springer. This book was released on 2018-06-28 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, with contributions from international landslide experts, presents in-depth knowledge of theories, practices, and modern numerical techniques for landslide analysis. Landslides are a reoccurring problem across the world and need to be properly studied for their mitigation and control. Due to increased natural and anthropogenic activities, chances of landslide occurrence and associated hazards have increased. The book focuses on landslide dynamics, mechanisms and processes along with hazard mitigation using geo-engineering, structural, geophysical and numerical tools. The book contains a wealth of the latest information on all aspects of theory, practices and modelling tools and techniques involved in prediction, prevention, monitoring, mitigation and risk analysis of landslide hazards. This book will bring the reader up to date on the latest trends in landslide studies and will help planners, engineers, scientists and researchers working on landslide engineering.
Download or read book Underground Disposal of Radioactive Wastes written by International Atomic Energy Agency and published by . This book was released on 1981 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Landslide Risk Management written by Oldrich Hungr and published by CRC Press. This book was released on 2005-06-30 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt: Landslide Risk Management comprises the proceedings of the International Conference on Landslide Risk Management, held in Vancouver, Canada, from May 31 to June 3, 2005. The first part of the book contains state-of-the-art and invited lectures, prepared by teams of authors selected for their experience in specific topics assigned to them by the JTC
Download or read book Behavior of Deep Foundations written by Raymond Lundgren and published by ASTM International. This book was released on 1979 with total page 621 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radioactive Waste Management and Regulation written by Mason Willrich and published by . This book was released on 1977 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses the nature of post-fission radioactive waste, the operations that spent fuel goes through after it is discharged from a reactor, and the problem of waste management.
Download or read book Unbound Granular Materials written by A. Gomes Correia and published by . This book was released on 1999 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mountain Risks From Prediction to Management and Governance written by Theo Van Asch and published by Springer Science & Business Media. This book was released on 2013-09-30 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a cross disciplinary treatment of the rapidly growing field of integrated approaches in risk assessment in mountainous areas. All major aspects related to hazard and risk assessment, risk management, and governance are illustrated with a wide range of case studies. The first part of the book focuses on new techniques for assessing the natural hazards of different types of mass movements. State-of-the-art techniques for morphological characterization and monitoring of displacements are described. Computational advances are covered to explain the process systems and to quantify the hazards of fast and slow-moving landslides. In the second part of the book methodologies are included for assessing the impact of these natural hazards on the society in terms of risks. In this part, methodologies for defining the vulnerability of the elements at risk are shown and the use of run-out models for risk assessment of the dangerous rapid mass movements are evaluated. The third part of the book focuses on the response of society towards the problems of hazard and risk. It highlights the role of spatial planning, early warning systems and evacuation plans for risk management. It establishes practical thresholds for acceptable and tolerable risks and emphasizes the importance of education and communication to society. Audience The book is of interest to a wide range of experts from related disciplines, practitioners and stakeholders to demonstrate the importance of an integrated approach for all aspects of risks in mountainous areas.
Download or read book Drainage of Highway and Airfield Pavements written by Harry R. Cedergren and published by John Wiley & Sons. This book was released on 1974-12-05 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
