Déformations induites par l'humidification des sols fins compactés PDF Download
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Author: Valéry Ferber
Publisher:
ISBN: 9782720824647
Category : Soil compaction
Languages : fr
Pages : 321
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Book Description
Author: Valéry Ferber
Publisher:
ISBN: 9782720824647
Category : Soil compaction
Languages : fr
Pages : 321
Get Book Here
Book Description
Author: Valéry Ferber
Publisher:
ISBN:
Category :
Languages : fr
Pages : 283
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Book Description
Les déformations des sols fins dues aux variations d’état hydrique constituent une des causes importantes de désordres des remblais routiers. Cette étude a pour objectif d’évaluer l’influence de la nature et de l’état initial des sols compactés sur ces déformations. Un modèle de microstructure, reposant sur l’organisation de la fraction argileuse en agrégats, a été défini pour distinguer quantitativement le volume des vides inter-agrégats et le volume des vides intra-agrégats. Ce modèle, qui repose uniquement sur des paramètres géotechniques conventionnels, a permis de mettre en évidence une relation linéaire entre l’indice des vides après humidification et l’indice des vides inter-agrégats après compactage, dont l’ordonnée à l’origine et la pente permettent de quantifier l’évolution du volume des agrégats et du volume inter-agrégats..Le volume final des agrégats dépend essentiellement de la nature du sol et de la contrainte, alors que la variation de volume des vides inter-agrégats est essentiellement gouvernée par la contrainte et l’état hydrique initial. Enfin, les sols très argileux et les sols fins peu argileux présentent un comportement fondamentalement différent lors de l’humidification sous contrainte, qui paraît déterminé par leur proportion de particules argileuses.Outre la contribution à une meilleure description des phénomènes à l’échelle des particules, cette approche permet ainsi de proposer une nouvelle méthodologie d’étude et de prévision des déformations dues à l’humidification.
Author: Mercedes Solla
Publisher: MDPI
ISBN: 3039218107
Category : Technology & Engineering
Languages : en
Pages : 216
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Book Description
The Special Issue (SI) “Recent Advances in GPR Imaging” offers an up-to-date overview of state-of-the-art research activities dealing with the development of Ground Penetrating Radar (GPR) technology and its recent advances in imaging in the different fields of application. In fact, the advances experimented with over the last few decades with regard to the appearance of new GPR systems and the need to manage large amounts of data suggest an increasing interest in the development of new signal processing algorithms and modeling, as well as in the use of three-dimensional (3D) imaging techniques.
Author:
Publisher:
ISBN:
Category : Engineering geology
Languages : en
Pages : 960
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Book Description
Author: Bernardo Caicedo
Publisher: CRC Press
ISBN: 0415620953
Category : Technology & Engineering
Languages : en
Pages : 612
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Book Description
New theories and testing techniques related with Unsaturated Soil Mechanics have proven to be valuable tools to study a broad spectrum of geo-materials which includes rocks, rock fills, frozen soils and domiciliary solid wastes. These new theories and testing techniques have permitted the analysis of several traditional problems from a new perspective (e.g., swelling or collapsible soils and compacted soils or pavements materials), and they have also shown their efficiency to study new energy-related problems like CO2 sequestration and nuclear waste disposal. Advances in Unsaturated Soils is a collection of papers from the 1st Pan-American Conference on Unsaturated Soils organized in Cartagena de Indias, Colombia, in February 2013. The volume includes 76 research papers coming for all over the world, as well as 7 keynotes papers by well known international researchers. The contributions present a variety of topics including: • Advances in testing techniques • Unsaturated soil behavior • Constitutive modeling and microstructure • Numerical modeling • Geotechnical problems Advances in Unsaturated Soils is expected to become a useful reference to academics and professionals involved in Unsaturated Soil Mechanics.
Author: Andrea Benedetto
Publisher: Springer
ISBN: 3319048139
Category : Science
Languages : en
Pages : 373
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Book Description
This book, based on Transport and Urban Development COST Action TU1208, presents the most advanced applications of ground penetrating radar (GPR) in a civil engineering context, with documentation of instrumentation, methods and results. It explains clearly how GPR can be employed for the surveying of critical transport infrastructure, such as roads, pavements, bridges and tunnels and for the sensing and mapping of underground utilities and voids. Detailed attention is also devoted to use of GPR in the inspection of geological structures and of construction materials and structures, including reinforced concrete, steel reinforcing bars and pre/post-tensioned stressing ducts. Advanced methods for solution of electromagnetic scattering problems and new data processing techniques are also presented. Readers will come to appreciate that GPR is a safe, advanced, non destructive and noninvasive imaging technique that can be effectively used for the inspection of composite structures and the performance of diagnostics relevant to the entire life cycle of civil engineering works.
Author: International Atomic Energy Agency
Publisher: International Atomic Energy Agency
ISBN: 9789201063205
Category : Technology & Engineering
Languages : en
Pages : 72
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Book Description
This publication results from a technical meeting on phenomenology and technologies relevant to in-vessel melt retention (IVMR) and ex-vessel corium cooling (EVCC). The purpose of the publication is to capture the state of knowledge, at the time of that meeting, related to phenomenology and technologies as well as the challenges and pending issues relevant to IVMR and EVCC for water cooled reactors by summarizing the information provided by the meeting participants in a form useful to practitioners in Member States.
Author: Jerry A. Yamamuro
Publisher: Amer Society of Civil Engineers
ISBN: 9780784407714
Category : Technology & Engineering
Languages : en
Pages : 497
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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: Ellis L. Krinitzsky
Publisher:
ISBN:
Category : Gravel
Languages : en
Pages : 178
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Book Description
Author: Xia-Ting Feng
Publisher: CRC Press
ISBN: 1315319608
Category : Technology & Engineering
Languages : en
Pages : 646
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Book Description
Laboratory and Field Testing is the second volume of the five-volume set Rock Mechanics and Engineering and contains nineteen chapters from key experts in the following fields: - Triaxial or True-triaxial Tests under Condition of Loading and Unloading; - Joint Tests; - Dynamic and Creep Tests; - Physical Modeling Tests; - Field Testing and URLs. The five-volume set “Comprehensive Rock Engineering”, which was published in 1993, has had an important influence on the development of rock mechanics and rock engineering. Significant and extensive advances and achievements in these fields over the last 20 years now justify the publishing of a comparable, new compilation. Rock Mechanics and Engineering represents a highly prestigious, multi-volume work edited by Professor Xia-Ting Feng, with the editorial advice of Professor John A. Hudson. This new compilation offers an extremely wideranging and comprehensive overview of the state-of-the-art in rock mechanics and rock engineering and is composed of peer-reviewed, dedicated contributions by all the key experts worldwide. Key features of this set are that it provides a systematic, global summary of new developments in rock mechanics and rock engineering practices as well as looking ahead to future developments in the fields. Contributors are worldrenowned experts in the fields of rock mechanics and rock engineering, though younger, talented researchers have also been included. The individual volumes cover an extremely wide array of topics grouped under five overarching themes: Principles (Vol. 1), Laboratory and Field Testing (Vol. 2), Analysis, Modelling and Design (Vol. 3), Excavation, Support and Monitoring (Vol. 4) and Surface and Underground Projects (Vol. 5). This multi-volume work sets a new standard for rock mechanics and engineering compendia and will be the go-to resource for all engineering professionals and academics involved in rock mechanics and engineering for years to come.
