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Author: Nathalie Barnel
Publisher:
ISBN:
Category :
Languages : fr
Pages : 209
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Book Description
Certains concepts de stockage envisagent d'intercaler une barrière ouvragée argileuse entre la roche et le colis de déchets radioactifs. Les niveaux de température, que pourrait subir l'argile, mettent en péril son aptitude à remplir les fonctions assignées à la barrière ouvragée. Afin d'apprécier les enjeux de conception, on simule le comportement thermo-hydro-mécanique d'une barrière ouvragée pour différentes sollicitations thermiques. L'étude est menée en partie sous forme de benchmark (codes ASTER et CAST3M). Elle révèle qu'une amélioration du modèle thermo-mécanique est nécessaire. Pour ce faire, on retient le formalisme énergétique et on propose un réexamen des phénomènes affectant les argiles en température. La contraction thermique de la double couche, propre aux argiles gonflantes, se révèle une interprétation intéressante des expériences. Aussi, on propose d'intégrer les phénomènes électrochimiques dans une formulation énergétique pour milieux poreux partiellement saturés.
Author: Nathalie Barnel
Publisher:
ISBN:
Category :
Languages : fr
Pages : 209
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Book Description
Certains concepts de stockage envisagent d'intercaler une barrière ouvragée argileuse entre la roche et le colis de déchets radioactifs. Les niveaux de température, que pourrait subir l'argile, mettent en péril son aptitude à remplir les fonctions assignées à la barrière ouvragée. Afin d'apprécier les enjeux de conception, on simule le comportement thermo-hydro-mécanique d'une barrière ouvragée pour différentes sollicitations thermiques. L'étude est menée en partie sous forme de benchmark (codes ASTER et CAST3M). Elle révèle qu'une amélioration du modèle thermo-mécanique est nécessaire. Pour ce faire, on retient le formalisme énergétique et on propose un réexamen des phénomènes affectant les argiles en température. La contraction thermique de la double couche, propre aux argiles gonflantes, se révèle une interprétation intéressante des expériences. Aussi, on propose d'intégrer les phénomènes électrochimiques dans une formulation énergétique pour milieux poreux partiellement saturés.
Author: Zoubir Ais
Publisher:
ISBN:
Category :
Languages : fr
Pages : 215
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Book Description
Dans le cadre du concept Multi-barrières pour le stockage géologique de déchets radioactifs de haute activité, on étudie l’impact de la sollicitation thermique, due aux colis, sur l’évolution irréversible du comportement THM de l’argile de la barrière ouvragée. A l’issue d’une synthèse des résultats expérimentaux publiés dans la littérature concernant les effets du chauffage sur le comportement de l’argile, on propose un modèle élastoplastique de Cam Clay, étendu en température et couplé à une variable d’endommagement, afin de mieux décrire le comportement de l’argile en température sur l’ensemble de la gamme de consolidation du matériau, de normalement consolidé à fortement surconsolidé. Finalement, on réalise des essais de chauffage sur des argiles normalement consolidées pour une meilleure identification du comportement en température des argiles.
Author: The Organizing Committee of the 16th ICSMGE
Publisher: IOS Press
ISBN: 1614996563
Category : Technology & Engineering
Languages : en
Pages : 3742
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Book Description
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.
Author:
Publisher:
ISBN:
Category : Engineering geology
Languages : en
Pages : 532
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Book Description
Author: International Atomic Energy Agency
Publisher: International Atomic Energy Agency
ISBN:
Category : Business & Economics
Languages : en
Pages : 856
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Book Description
Proceedings of a symposium, Hannover, Germany, 3-7 March 1986. The purpose was to review advances made in the area of siting, design and construction of underground repositories for radioactive wastes and to consider developments of future importance. Forty-nine papers were presented, covering general approaches and regulatory aspects, disposal in shallow ground and rock cavities, disposal in deep geological formations and safety assessments.
Author: Delwyn G. Fredlund
Publisher: John Wiley & Sons
ISBN: 1118280504
Category : Technology & Engineering
Languages : en
Pages : 946
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Book Description
The definitive guide to unsaturated soil— from the world's experts on the subject This book builds upon and substantially updates Fredlund and Rahardjo's publication, Soil Mechanics for Unsaturated Soils, the current standard in the field of unsaturated soils. It provides readers with more thorough coverage of the state of the art of unsaturated soil behavior and better reflects the manner in which practical unsaturated soil engineering problems are solved. Retaining the fundamental physics of unsaturated soil behavior presented in the earlier book, this new publication places greater emphasis on the importance of the "soil-water characteristic curve" in solving practical engineering problems, as well as the quantification of thermal and moisture boundary conditions based on the use of weather data. Topics covered include: Theory to Practice of Unsaturated Soil Mechanics Nature and Phase Properties of Unsaturated Soil State Variables for Unsaturated Soils Measurement and Estimation of State Variables Soil-Water Characteristic Curves for Unsaturated Soils Ground Surface Moisture Flux Boundary Conditions Theory of Water Flow through Unsaturated Soils Solving Saturated/Unsaturated Water Flow Problems Air Flow through Unsaturated Soils Heat Flow Analysis for Unsaturated Soils Shear Strength of Unsaturated Soils Shear Strength Applications in Plastic and Limit Equilibrium Stress-Deformation Analysis for Unsaturated Soils Solving Stress-Deformation Problems with Unsaturated Soils Compressibility and Pore Pressure Parameters Consolidation and Swelling Processes in Unsaturated Soils Unsaturated Soil Mechanics in Engineering Practice is essential reading for geotechnical engineers, civil engineers, and undergraduate- and graduate-level civil engineering students with a focus on soil mechanics.
Author:
Publisher:
ISBN:
Category : Engineering geology
Languages : en
Pages : 520
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Book Description
Author: Leslie Rainer
Publisher: Getty Publications
ISBN: 1606060430
Category : Architecture
Languages : fr
Pages : 438
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Book Description
Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.
Author: Frantz Fanon
Publisher:
ISBN: 9780745399546
Category : Black race
Languages : en
Pages : 0
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Book Description
Black Skin, White Masks is a classic, devastating account of the dehumanising effects of colonisation experienced by black subjects living in a white world. First published in English in 1967, this book provides an unsurpassed study of the psychology of racism using scientific analysis and poetic grace.Franz Fanon identifies a devastating pathology at the heart of Western culture, a denial of difference, that persists to this day. A major influence on civil rights, anti-colonial, and black consciousness movements around the world, his writings speak to all who continue the struggle for political and cultural liberation.With an introduction by Paul Gilroy, author of There Ain't No Black in the Union Jack.
Author: Alessandro Tarantino
Publisher: Springer Science & Business Media
ISBN: 1402088191
Category : Science
Languages : en
Pages : 214
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Book Description
This volume details recent global advances in laboratory and field testing of unsaturated soils. Coverage includes mechanical, hydraulic, and geo-environmental testing and applications of unsaturated soil monitoring to engineering behavior of geo-structures.
