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Etude Experimentale Du Debut De Consolidation De Sediments Fins Naturels
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Book Synopsis ETUDE EXPERIMENTALE DU DEBUT DE CONSOLIDATION DE SEDIMENTS FINS NATURELS by : GILBERT.. LE BRAS
Download or read book ETUDE EXPERIMENTALE DU DEBUT DE CONSOLIDATION DE SEDIMENTS FINS NATURELS written by GILBERT.. LE BRAS and published by . This book was released on 2000 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'ETUDE DU DEBUT DE CONSOLIDATION DES SEDIMENTS FINS PRESENTE UN GRAND INTERET SCIENTIFIQUE PAR SON ASPECT INTERDISCIPLINAIRE A LA FRONTIERE HYDRAULIQUE-GEOTECHNIQUE. CE THEME EST EGALEMENT MARQUE PAR L'IMPORTANCE DE SES APPLICATIONS A LA GESTION DES ZONES COTIERES AMENAGEES OU NATURELLES, ESTUARIENNES OU LITTORALES. NOUS PROPOSONS UNE DEMARCHE SCIENTIFIQUE CONDUISANT A UNE SERIE D'APPORTS ORIGINAUX ET ASSOCIANT DES METHODOLOGIES ISSUES DES APPROCHES HYDRAULIQUES ET GEOTECHNIQUES : - L'AMELIORATION ET LA MISE AU POINT D'UN SYSTEME EXPERIMENTAL (BANC GAMMADENSIMETRIQUE ASSERVI) PERMETTANT DE MESURER L'EVOLUTION DES DENSITES ET DES PRESSIONS INTERSTITIELLES LORS D'UN ESSAI EN COLONNE SUR UN SEDIMENT NATUREL - LA MISE EN UVRE D'ESSAIS PARAMETRIQUES AFIN DE CERNER L'IMPORTANCE DE DIFFERENTES CONDITIONS INITIALES - LA CONCEPTION ET LA REALISATION D'UN CODE DE TRAITEMENT DES DONNEES MESUREES, PERMETTANT D'EXAMINER LA VALIDITE DE LOIS DE COMPORTEMENT - UNE ANALYSE POUSSEE DES VALEURS TRAITEES, AVEC CHOIX DES MODES DE REPRESENTATION DES VALEURS NOUS AVONS AINSI ETE AMENES A METTRE EN UVRE DE NOUVEAUX MOYENS D'ANALYSE, BASES SUR LA COMPREHENSION PHYSIQUE D'UN PHENOMENE TROP SOUVENT NEGLIGE : LA SEGREGATION. CETTE ANALYSE NOUS A PERMIS D'ELABORER UN MODELE CONCEPTUEL DE COMPORTEMENT BASE SUR LE COMPORTEMENT DIFFERENCIE DES ELEMENTS GROSSIERS ET D'UNE PATE CONSTITUEE DES ELEMENTS FINS ET DE L'EAU. LES APPLICATIONS SCIENTIFIQUES ET INDUSTRIELLES DE CETTE ETUDE SONT PRINCIPALEMENT LA PREDICTION DES ENVASEMENTS DES SOUILLES ET CHENAUX, MAIS PEUVENT EGALEMENT CONCERNER D'AUTRES MATERIAUX IDENTIFIES COMME BOUES OU PATES. NOTRE DEMARCHE INTERDISCIPLINAIRE A PERMIS D'OBTENIR UN GRAND NOMBRE DE RESULTATS ORIGINAUX DEBOUCHANT SUR UNE MEILLEURE COMPREHENSION DES PROCESSUS LIES AU DEBUT DE CONSOLIDATION DES SEDIMENTS NATURELS, TOUT EN OUVRANT DE NOMBREUSES PERSPECTIVES DE RECHERCHE SUR LA LIAISON HYDRAULIQUE-GEOTECHNIQUE DANS LES MILIEUX LITTORAUX OU ESTUARIENS ET DANS LES SITES PORTUAIRES.
Book Synopsis 5th ICEG Environmental Geotechnics by : Hywel R. Thomas
Download or read book 5th ICEG Environmental Geotechnics written by Hywel R. Thomas and published by Thomas Telford Publishing. This book was released on 2006 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Etude expérimentale de la sédimentation-consolidation et de l'acquisition de résistance d'un sol fin by : Françoise Masutti
Download or read book Etude expérimentale de la sédimentation-consolidation et de l'acquisition de résistance d'un sol fin written by Françoise Masutti and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Les situations d'envasement (barrages, estuaires), la stabilité de fonds marins, l'évolution de bassins de décantation d'effluents issus de diverses activités humaines constituent des phénomènes ou des procédés fortement conditionnés par le comportement de sédiments fins de teneur en eau élevée. Situés à la frontière entre milieux fluide et solide, ces matériaux sont particulièrement complexes et évolutifs et nécessitent des études interdisciplinaires. La description et la prédiction de leur comportement reposent sur la détermination de lois caractéristiques ; l'expérimentation en laboratoire constitue donc une étape préalable indispensable à la compréhension des phénomènes gouvernant la formation de ces sols. Dans ce contexte, cette étude concerne plus particulièrement le début de la consolidation et repose sur deux approches complémentaires incluant la mise en œuvre de dispositifs expérimentaux spécifiques : (i) banc gammamétrique et colonnes de sédimentation instrumentées permettant la simulation du processus de dépôt de suspensions de kaolin et la mesure non-destructive de certains paramètres ; (ii) système de type piézocône, adapté à la mesure en place de faibles valeurs de résistance au cisaillement non drainé. Le comportement des suspensions et des dépôts est analysé en terme d'évolution, au cours du temps, de la position de leur surface, de leur densité, de leur cohésion, des surpressions interstitielles, des contraintes effectives. Les résultats font l'objet d'une analyse géotechnique comparative entre différents modes de consolidation, d'une part pour mettre en évidence la continuité du processus sur un domaine étendu de contraintes et d'indice des vides, d'autre part afin d'étudier le comportement mécanique des dépôts obtenus en laboratoire parallèlement à celui observé in situ sur des sédiments marins récents. Nous abordons également la notion de " transition " sédimentation-consolidation, de manière classique et sous l'angle de l'acquisition de résistance.
Book Synopsis Étude expérimentale de la sédimentation-consolidation et de l'acquisition de résistance d'un sol fin by : Françoise Masutti
Download or read book Étude expérimentale de la sédimentation-consolidation et de l'acquisition de résistance d'un sol fin written by Françoise Masutti and published by . This book was released on 2001 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les situations d'envasement (barrages, estuaires), la stabilité de fonds marins, l'évolution de bassins de décantation d'effluents issus de diverses activités humaines constituent des phénomènes ou des procédés fortement conditionnés par le comportement de sédiments fins de teneur en eau élevée. Situés à la frontière entre milieux fluide et solide, ces matériaux sont particulièrement complexes et évolutifs et nécessitent des études interdisciplinaires. La description et la prédiction de leur comportement reposent sur la détermination de lois caractéristiques ; l'expérimentation en laboratoire constitue donc une étape préalable indispensable à la compréhension des phénomènes gouvernant la formation de ces sols. Dans ce contexte, cette étude concerne plus particulièrement le début de la consolidation et repose sur deux approches complémentaires incluant la mise en œuvre de dispositifs expérimentaux spécifiques : (i) banc gammamétrique et colonnes de sédimentation instrumentées permettant la simulation du processus de dépôt de suspensions de kaolin et la mesure non-destructive de certains paramètres ; (ii) système de type piézocône, adapté à la mesure en place de faibles valeurs de résistance au cisaillement non drainé. Le comportement des suspensions et des dépôts est analysé en terme d'évolution, au cours du temps, de la position de leur surface, de leur densité, de leur cohésion, des surpressions interstitielles, des contraintes effectives. Les résultats font l'objet d'une analyse géotechnique comparative entre différents modes de consolidation, d'une part pour mettre en évidence la continuité du processus sur un domaine étendu de contraintes et d'indice des vides, d'autre part afin d'étudier le comportement mécanique des dépôts obtenus en laboratoire parallèlement à celui observé in situ sur des sédiments marins récents. Nous abordons également la notion de " transition " sédimentation-consolidation, de manière classique et sous l'angle de l'acquisition de résistance.
Book Synopsis Etude expérimentale et numérique du début de consolidation de sols de très forte teneur en eau by : Quoc Duy Nguyen
Download or read book Etude expérimentale et numérique du début de consolidation de sols de très forte teneur en eau written by Quoc Duy Nguyen and published by . This book was released on 2008 with total page 416 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.
Author :Canada. Department of Fisheries and Oceans Publisher :Peches Et Oceans Direction Generale Des Communications = Fisheries and Oceans Communications Dir ISBN 13 : Total Pages :376 pages Book Rating :4.:/5 (31 download)
Book Synopsis Le Golfe Du Saint-Laurent--petit Océan Ou Grand Estuaire? by : Canada. Department of Fisheries and Oceans
Download or read book Le Golfe Du Saint-Laurent--petit Océan Ou Grand Estuaire? written by Canada. Department of Fisheries and Oceans and published by Peches Et Oceans Direction Generale Des Communications = Fisheries and Oceans Communications Dir. This book was released on 1991 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a workshop, the scientific reviews and the contributed papers presented at the symposium. The document presents a brief historical summary of marine research in the Gulf; reports the discussions, conclusions and recommendations of the different working groups on oceanography (physics, biology, chemistry and sedimentology) and on the fishery (fish and invertebrates); then presents the discussions of each multidisciplinary working group, centered around how the St. Lawrence system may be used as a natural laboratory which will contribute to the solution of major long-term problems of conservation of natural resources and of the quality of the environment.
Book Synopsis Cork Oak Woodlands on the Edge by : James Aronson
Download or read book Cork Oak Woodlands on the Edge written by James Aronson and published by Island Press. This book was released on 2012-09-26 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cork oak has historically been an important species in the western Mediterranean—ecologically as a canopy or “framework” tree in natural woodlands, and culturally as an economically valuable resource that underpins local economies. Both the natural woodlands and the derived cultural systems are experiencing rapid change, and whether or not they are resilient enough to adapt to that change is an open question. Cork Oak Woodlands on the Edge provides a synthesis of the most up-to-date, scientific, and practical information on the management of cork oak woodlands and the cultural systems that depend on cork oak. In addition, Cork Oak Woodlands on the Edge offers ten site profiles written by local experts that present an in-depth vision of cork oak woodlands across a range of biophysical, historical, and cultural contexts, with sixteen pages of full-color photos that illustrate the tree, agro-silvopastoral systems, products, resident biodiversity, and more. Cork Oak Woodlands on the Edge is an important book for anyone interested in the future of cork oak woodlands, or in the management of cultural landscapes and their associated land-use systems. In a changing world full of risks and surprises, it represents an excellent example of a multidisciplinary and holistic approach to studying, managing, and restoring an ecosystem, and will serve as a guide for other studies of this kind.
Book Synopsis Adhesion between polymers and concrete / Adhésion entre polymères et béton by : H. R. Sasse
Download or read book Adhesion between polymers and concrete / Adhésion entre polymères et béton written by H. R. Sasse and published by Springer. This book was released on 2013-11-27 with total page 0 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.
Book Synopsis Ceramics and Society by : Valentine Roux
Download or read book Ceramics and Society written by Valentine Roux and published by Springer. This book was released on 2019-02-14 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pottery is the most ubiquitous find in most historical archaeological excavations and serves as the basis for much research in the discipline. But it is not only its frequency that makes it a prime dataset for such research, it is also that pottery embeds many dimensions of the human experience, ranging from the purely technical to the eminently symbolic. The aim of this book is to provide a cutting-edge theoretical and methodological framework, as well as a practical guide, for archaeologists, students and researchers to study ceramic assemblages. As opposed to the conventional typological approach, which focuses on vessel shape and assumed function with the main goal of establishing a chronological sequence, the proposed framework is based on the technological approach. Such an approach utilizes the concept of chaîne opératoire, which is geared to an anthropological interpretation of archaeological objects. The author offers a sound theoretical background accompanied by an original research strategy whose presentation is at the heart of this book. This research strategy is presented in successive chapters that are geared to explain not only how to study archaeological assemblages, but also why the proposed methods are essential for achieving ambitious interpretive goals. In the heated debate on the equation stating that “pots equal people”, which is a rather fuzzy reference to assumed relationships between (mostly) ethnic groups and pottery, technology enables us to propose with conviction the equation “pots equal potters”. In this way, a well-founded history of potters is able to achieve a much better cultural and anthropological understanding of ancient societies.
Book Synopsis The Mediterranean Medina by : AA. VV.
Download or read book The Mediterranean Medina written by AA. VV. and published by Gangemi Editore spa. This book was released on 2016-01-03T00:00:00+01:00 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume collects the proceedings of the International Seminar The Mediterranean Medina, that took place in the School of Architecture at Pescara from 17th to 19th of June 2004.
Book Synopsis World Terraced Landscapes: History, Environment, Quality of Life by : Mauro Varotto
Download or read book World Terraced Landscapes: History, Environment, Quality of Life written by Mauro Varotto and published by Springer. This book was released on 2018-12-06 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume collects the best scientific contribution presented in the 3rd World Conference on Terraced Landscapes held in Italy from 6th to 15th October 2016, offering a deep and multifaceted insight into the remarkable heritage of terraced landscapes in Italy, in Europe and in the World (America, Asia, Australia). It consists of 2 parts: a geographical overview on some of the most important terraced systems in the world (1st part), and a multidisciplinary approach that aims to promote a multifunctional vision of terraces, underlining how these landscapes meet different needs: cultural and historical values, environmental and hydrogeological functions, quality and variety of food, community empowerment and sustainable development (2nd part). The volume offers a great overview on strengths, weaknesses, functions and strategies for terraced landscapes all over the world, summarizing in a final manifest the guidelines to provide a future for these landscapes as natural and cultural heritage.
Book Synopsis Land Subsidence Due to Ground-water Withdrawal, Tulare-Wasco Area, California by : B. E. Lofgren
Download or read book Land Subsidence Due to Ground-water Withdrawal, Tulare-Wasco Area, California written by B. E. Lofgren and published by . This book was released on 1969 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of land subsidence caused by water-level changes in complex aquifer systems, including analysis of stresses and appraisal of parameters for estimating subsidence.
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Org. ISBN 13 :9251305536 Total Pages :435 pages Book Rating :4.2/5 (513 download)
Book Synopsis Regional Conference on building a future for sustainable small-scale fisheries in the Mediterranean and the Black Sea by : Food and Agriculture Organization of the United Nations
Download or read book Regional Conference on building a future for sustainable small-scale fisheries in the Mediterranean and the Black Sea written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-10-31 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: According to the report, the conference focused on the main challenges for the sustainable development of small-scale fisheries, including promoting political commitment and tailored strategies, raising awareness, and sharing knowledge.
Book Synopsis The Emergence of Pressure Blade Making by : Pierre M. Desrosiers
Download or read book The Emergence of Pressure Blade Making written by Pierre M. Desrosiers and published by Springer Science & Business Media. This book was released on 2012-03-13 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human development is a long and steady process that began with stone tool making. Because of this skill, humans were able to adapt to climate changes, discover new territories, and invent new technologies. "Pressure knapping" is the common term for one method of creating stone tools, where a larger device or blade specifically made for this purpose is use to press out the stone tool. Pressure knapping was invented in different locations and at different points in time, representing the adoption of the Neolithic way of life in the Old world. Recent research on pressure knapping has led for the first time to a global thesis on this technique. The contributors to this seminal work combine research findings on pressure knapping from different cultures around the globe to develope a cohesive theory. This contributions to this volume represents a significant development to research on pressure knapping, as well as the field of lithic studies in general. This work will be an important reference for anyone studying the Paleolithic, Mesolithic, and Neolithic periods, lithic studies, technologies, and more generally, cultural transmission.
Book Synopsis Land-surface Subsidence in the Houston-Galveston Region, Texas by : R. K. Gabrysch
Download or read book Land-surface Subsidence in the Houston-Galveston Region, Texas written by R. K. Gabrysch and published by . This book was released on 1975 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nature Conservation written by Dan Gafta and published by Springer Science & Business Media. This book was released on 2007-02-15 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a multi-disciplinary coverage of the broad fields of species, community and landscape conservation. The panel of contributors consider a range of topics in vegetation and biodiversity assessment, planning and management of conservation zones and protected areas, together with historical and social/legal issues of the environment and nature conservation. The book celebrates the life’s work of Professor Franco Pedrotti.
Book Synopsis Knowing and Teaching Elementary Mathematics by : Liping Ma
Download or read book Knowing and Teaching Elementary Mathematics written by Liping Ma and published by Routledge. This book was released on 2010-03-26 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies of teachers in the U.S. often document insufficient subject matter knowledge in mathematics. Yet, these studies give few examples of the knowledge teachers need to support teaching, particularly the kind of teaching demanded by recent reforms in mathematics education. Knowing and Teaching Elementary Mathematics describes the nature and development of the knowledge that elementary teachers need to become accomplished mathematics teachers, and suggests why such knowledge seems more common in China than in the United States, despite the fact that Chinese teachers have less formal education than their U.S. counterparts. The anniversary edition of this bestselling volume includes the original studies that compare U.S and Chinese elementary school teachers’ mathematical understanding and offers a powerful framework for grasping the mathematical content necessary to understand and develop the thinking of school children. Highlighting notable changes in the field and the author’s work, this new edition includes an updated preface, introduction, and key journal articles that frame and contextualize this seminal work.
