Download or read book Etude exp rimentale et num rique du d but de consolidation de sols de tr s forte teneur en eau written by Quoc Duy Nguyen and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: L'objectif de ce travail est d'améliorer les connaissances du processus de sédimentation-consolidation des sols de très forte teneur en eau, avec une extension à la prise en compte de la ségrégation et de l'évolution de la cohésion. Ce thème est situé à la frontière hydraulique-géotechnique, et présente d'importantes applications à la gestion des sédiments lacustres ou estuariens et des boues industrielles. La méthodologie d'étude repose les expérimentations en laboratoire et in situ, et la modélisation théorique et numérique. Les matériaux utilisés sont des mélanges artificiels de kaolin et de sable de Fontainebleau, et des vases naturelles. Les travaux expérimentaux reposent sur (i) l'amélioration d'un banc gammadensimétrique asservi de laboratoire permettant le suivi non pertubant de la densité et la pression interstitielle dans le sol en cours de formation, (ii) le développement d'un nouveau pénétromètre sur site en laboratoire adapté aux sédiments de très faible résistance, (iii) le développement d'essais de ségrégation en laboratoire avec suivi granulométrique peu perturbant. L'interprétation des essais permet de proposer des lois de comportement de la fraction fine (contrainte effective et perméabilité réduite) qui sont fonction de la concentration avec à deux paramètres. La ségrégation peut être intégrée à l'aide d'une loi de Stockes adaptée. Les travaux de modélisation sont basés sur la théorie de consolidation aux grandes déformations de Gibson, étendue de manière continue aux domaines de Kynch et Stokes. Une extension est proposée pour prendre en compte la ségrégation par la chute de la fraction grossière dans une pâte constituée de fines et d'eau, pouvant se consolider. L'application industrielle a été réalisée en partenariat avec EDF sur le réservoir du barrage d'Oytier (Alpes), et a permis de donner des éléments d'appréciation (évolution des concentrations et des résistances) de la faisabilité des méthodes de soutirage de sédiment frais derrière les barrages hydroélectriques. Les apports de ce travail permettent d'ouvrir de nombreuses perspectives de recherche sur la liaison hydraulique-géotechnique dans les milieux littoraux, estuariens, portuaires ou lacustres.

Download or read book Adhesion Between Polymers and Concrete Adh sion Entre Polym res Et B ton written by H. R. Sasse and published by Springer. This book was released on 1986 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preface Adhesion is a phenomenon architects and civil engineers are not very familiar with. In other disciplines knowledge about surface properties and the background of bonding energies is also far from satisfactory; nevertheless there are many important· applications in concrete engineering, where adhesion is necessary for success and durability. These include: - coating and painting - repair of concrete surfaces - bonding of fresh to old concrete - crack injection - glueing of precast elements - glueing of steel to concrete, etc. In 1981 RILEM established the technical committee 52-RAC 'Resin Adherence to Concrete'. The main aims of the committee's work were - to collect research results and practical experiences - to initiate and coordinate research programs - to develop, on a scientific base, test methods for field and for laboratory purposes. One of the results of the committee's work is a state-of-the-art report, which will be presented orally as a General Report at the International Symposium ISAP '86, and will be printed either in the RILEM journal Materials and Structures or separately. Several test recommendations have been elaborated and will be prepared as drafts for the participants ofISAP '86. These are: - direct tensile test - pull-off test - direct shear test - slant shear test - four-point bending test - dynamic loading test - thermal compatibility test (two versions) - injectibility test.

Download or read book Biogeography and Ecology in Australia written by Allen Keast and published by Springer. This book was released on 2013-12-20 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Mbuti Pygmies written by Colin M. Turnbull and published by Harcourt Brace College Publishers. This book was released on 1983 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This case focuses on the Mbuti pygmy hunter/gatherers of Zaire and their adaptation to change both before and after independence.

Download or read book Site Investigations written by and published by . This book was released on 2002 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Site investigations, Construction operations, Soils, Soil surveys, Soil sampling, Soil testing, Ground water, Rocks, Safety measures, Occupational safety, Field testing, Excavations, Soil drilling

Download or read book The Khoisan Peoples of South Africa written by Isaac Schapera and published by Taylor & Francis. This book was released on 1934 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ethnological Studies Among the North west central Queensland Aborigines written by Walter Edmund Roth and published by . This book was released on 1897 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: details of manufacture - koolamons, native chisels (throughout N.W.

Download or read book A black civilization a social study of an Australian tribe written by William Lloyd Warner and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin of the Lying In Hospital of the City of New York written by Society of the Lying-In Hospital of the City of New-York and published by . This book was released on 1932 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Alkaloidal Clinic written by and published by . This book was released on 1898 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Texas State Journal of Medicine written by and published by . This book was released on 1910 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physiological Archives written by University of Chicago. Hull Physiological Laboratory and published by . This book was released on 1896 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Clinical and Pathological Papers from the Lakeside Hospital Cleveland written by Lakeside Hospital (Cleveland, Ohio) and published by . This book was released on 1910 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cod liver Oil and Chemistry written by Frantz Peckel Møller and published by . This book was released on 1895 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Creative Biology Teaching written by Delma E. Harding and published by . This book was released on 1969 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Man Society and Nature written by Priyatosh Banerjee and published by . This book was released on 1988 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Trends in Integrated Science Teaching written by Unesco and published by . This book was released on 1979 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: