CONTRIBUTION A LA MODELISATION DU COMPORTEMENT HYDRIQUE ET MECANIQUE DES REMBLAIS ROUTIERS EN MATERIAUX FINS PDF Download
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Book Description
AFIN DE MIEUX ESTIMER LES TASSEMENTS ET LA STABILITE DES OUVRAGES GEOTECHNIQUES AU COURS DU TEMPS, UNE MODELISATION DU COMPORTEMENT COUPLE (MECANIQUE, ECOULEMENT DE L'EAU ET ECOULEMENT DE L'AIR) DES MILIEUX POREUX NON SATURES EST DEVELOPPEE. A PARTIR DES EQUATIONS D'EQUILIBRE, DE CONTINUITE ET DE COMPORTEMENT DES TROIS PHASES DU SOL, NOUS AVONS D'ABORD ETABLI UN SYSTEME NON LINEAIRE TANT DU POINT DE VUE MECANIQUE QUE DU POINT DE VUE DES ECOULEMENTS. CE MODELE EST DISCRETISE DANS L'ESPACE, PAR ELEMENTS FINIS, ET DANS LE TEMPS, PAR UN SCHEMA IMPLICITE. LE TRAITEMENT NUMERIQUE DE CE PROBLEME CONDUIT, D'UNE PART, A LA CREATION D'UNE NOUVELLE FAMILLE D'ELEMENTS DE CONSOLIDATION BIDIMENSIONNELLE DES SOLS NON SATURES DANS LE CODE DE CALCUL PAR ELEMENTS FINIS CESAR-LCPC ET, D'AUTRE PART, A LA MISE AU POINT D'UN ALGORITHME ITERATIF COMBINANT LA METHODE DES RIGIDITES VARIABLES POUR LE TRAITEMENT DES NON LINEARITES LIEES A L'ECOULEMENT DES FLUIDES ET LA METHODE DES CONTRAINTES INITIALES POUR LE TRAITEMENT DES NON LINEARITES MECANIQUES. LA PROGRAMMATION DE CET ALGORITHME A ETE EFFECTUEE DANS LE MODULE CSNS (CONSOLIDATION DES SOLS NON SATURES) DE CESAR-LCPC. LA MODELISATION EFFECTUEE ET SA PROGRAMMATION, QUI TIENT COMPTE, ENTRE AUTRES, DU PHASAGE DE LA CONSTRUCTION DU REMBLAI ET DES CONDITIONS AUX LIMITES DE DIVERSES NATURES, ONT ETE TESTEES SUR UN OUVRAGE REEL (REMBLAI AUTOROUTIER). LA CONFRONTATION DES RESULTATS NUMERIQUES ET EXPERIMENTAUX SUR CET OUVRAGE A MONTRE QUE CETTE APPROCHE DE COUPLAGE DES ECOULEMENTS DE L'EAU ET DE L'AIR ET DES DEFORMATIONS DU SOL PRODUIT DES RESULTATS ENCOURAGEANTS TANT DU POINT DE VUE MECANIQUE QUE DU POINT DE VUE DES ECOULEMENTS
Book Description
AFIN DE MIEUX ESTIMER LES TASSEMENTS ET LA STABILITE DES OUVRAGES GEOTECHNIQUES AU COURS DU TEMPS, UNE MODELISATION DU COMPORTEMENT COUPLE (MECANIQUE, ECOULEMENT DE L'EAU ET ECOULEMENT DE L'AIR) DES MILIEUX POREUX NON SATURES EST DEVELOPPEE. A PARTIR DES EQUATIONS D'EQUILIBRE, DE CONTINUITE ET DE COMPORTEMENT DES TROIS PHASES DU SOL, NOUS AVONS D'ABORD ETABLI UN SYSTEME NON LINEAIRE TANT DU POINT DE VUE MECANIQUE QUE DU POINT DE VUE DES ECOULEMENTS. CE MODELE EST DISCRETISE DANS L'ESPACE, PAR ELEMENTS FINIS, ET DANS LE TEMPS, PAR UN SCHEMA IMPLICITE. LE TRAITEMENT NUMERIQUE DE CE PROBLEME CONDUIT, D'UNE PART, A LA CREATION D'UNE NOUVELLE FAMILLE D'ELEMENTS DE CONSOLIDATION BIDIMENSIONNELLE DES SOLS NON SATURES DANS LE CODE DE CALCUL PAR ELEMENTS FINIS CESAR-LCPC ET, D'AUTRE PART, A LA MISE AU POINT D'UN ALGORITHME ITERATIF COMBINANT LA METHODE DES RIGIDITES VARIABLES POUR LE TRAITEMENT DES NON LINEARITES LIEES A L'ECOULEMENT DES FLUIDES ET LA METHODE DES CONTRAINTES INITIALES POUR LE TRAITEMENT DES NON LINEARITES MECANIQUES. LA PROGRAMMATION DE CET ALGORITHME A ETE EFFECTUEE DANS LE MODULE CSNS (CONSOLIDATION DES SOLS NON SATURES) DE CESAR-LCPC. LA MODELISATION EFFECTUEE ET SA PROGRAMMATION, QUI TIENT COMPTE, ENTRE AUTRES, DU PHASAGE DE LA CONSTRUCTION DU REMBLAI ET DES CONDITIONS AUX LIMITES DE DIVERSES NATURES, ONT ETE TESTEES SUR UN OUVRAGE REEL (REMBLAI AUTOROUTIER). LA CONFRONTATION DES RESULTATS NUMERIQUES ET EXPERIMENTAUX SUR CET OUVRAGE A MONTRE QUE CETTE APPROCHE DE COUPLAGE DES ECOULEMENTS DE L'EAU ET DE L'AIR ET DES DEFORMATIONS DU SOL PRODUIT DES RESULTATS ENCOURAGEANTS TANT DU POINT DE VUE MECANIQUE QUE DU POINT DE VUE DES ECOULEMENTS
Author: Anders Ekberg Publisher: ISBN: 9782746118508 Category : Railroad tracks Languages : en Pages : 288
Book Description
The track structure, rails, switches and crossings account for more than 50% of maintenance and renewal costs for the rail industry. To improve the competitiveness of rail transportation, the cost-efficiency of these areas needs to be addressed. This is the background to INNOTRACK, an integrated research project funded by the European Commission's 6th research framework programme. Running from September 2006 to December 2009, INNOTRACK has developed a multitude of innovative solutions in the areas of track substructure, rails & welds, and switches & crossings. The solutions have been assessed from technical, logistics and life cycle cost point of views.
Author: R. N. Bray Publisher: CRC Press ISBN: 0203894898 Category : Technology & Engineering Languages : en Pages : 398
Book Description
Expanding a port, deepening a navigation channel or creating new land for development, introduces changes to our physical, social, economic and political environment. Changes may result from events during the construction process, or relate to the nature of the completed structure. Changes can be positive or negative, short-term or long-term, and may affect the immediate vicinity of the project or a larger geographical area. Predicting and assessing all possible effects of a planned dredging activity in a scientifically-sound and reliable manner is essential, so that appropriate control measures can be taken to avoid or mitigate unwelcome impacts. This book provides guidance for a complete holistic environmental evaluation procedure and for the design and implementation of environmental control measures. The book is of particular interest to engineers, government agencies and port authorities, as well as civil engineering consultants and contractors involved in planning and designing dredging, maritime infrastructure and fluvial projects.
Author: Jerry A. Yamamuro Publisher: Amer Society of Civil Engineers ISBN: 9780784407714 Category : Technology & Engineering Languages : en Pages : 497
Book Description
GSP 128 contains papers by 19 prominent constitutive modelers presented at the Geo-Frontier Conference, held in Austin, Texas, January 24-26, 2005.
Author: Shahbaz Khan Publisher: ISBN: Category : Water quality Languages : en Pages : 292
Book Description
Partial contents: Monitoring and Evaluating the Water Cycle; Linking Climate Change with Water Cycle Management; Parsimonious vs Complicated Approaches; Whole-of- System and Adaptative Approaches; Need for Transdisciplinary Issues Approaches to Deal with Water Related Ecosystems; Integrated Approaches; Role of Knowledge Platforms for Community Engagement; From Artificial to Embodied Intelligence; Water Allocation Dilemma; Water Quality a Critical Issue; Managing Hydrohazards.
Author: Helene Joffe Publisher: Springer Science & Business Media ISBN: 9400761848 Category : Nature Languages : en Pages : 195
Book Description
With the major growth of the world’s population over the past century, as well as rapid urbanisation, people increasingly live in crowded cities. This trend is often accompanied by proliferation of poorly built housing, uncontrolled use of land, occupation of unsafe environments and overstretched services. When a natural hazard strikes such a city many people are vulnerable to loss of life and property. This book explores what these people think and feel about the threats that they face. How do they live with perils ranging from earthquakes to monsoons, from floods to hurricanes, in the 21st century? The authors are drawn from a large range of disciplines: Psychology, Engineering, Geography, Anthropology and Urban Planning. They also reflect on how perils are represented in multiple cultures: the United States, Japan, Turkey, Bangladesh, the United Kingdom and New Zealand. The book therefore not only brings to light the ways that different cultures represent natural hazards but also the different ways in which various disciplines write about living with perils in the 21st century. The book is addressed both to researchers and to organizations involved with risk management and risk mitigation.
Author: MOUSSA.. WONE
Author: MOUSSA.. WONE
Author: Ellis L. Krinitzsky
Author: ![INNOTRACK : concluding technical report ; [innovative track systems] PDF](https://books.google.com/books/content/images/frontcover/1WGdDAEACAAJ?fife=w80-h100)
Author: Anders Ekberg
Author: R. N. Bray
Author: John Bridge
Author: Jerry A. Yamamuro
Author: Shahbaz Khan
Author: Helene Joffe
Author: Kazimierz Banasik