L'OBJET DU PRESENT TRAVAIL EST DE COMPRENDRE LE FONCTIONNEMENT MECANIQUE DES STRUCTURES INVERSES EN VUE DE LA MISE AU POINT D'UNE METHODE RATIONNELLE DE DIMENSIONNEMENT POUR CES STRUCTURES. LE MEMOIRE EST CONSTITUE DE CINQ PARTIES. L'ETUDE BIBLIOGRAPHIQUE DONNE D'ABORD DES RAPPELS SUR LES METHODES DE DIMENSIONNEMENT DES CHAUSSEES. LES POINTS ESSENTIELS DE LA METHODE RATIONNELLE ADOPTEE SONT PRESENTES AINSI QUE QUELQUES RESULTATS OBTENUS SUR CHAUSSEES INVERSES. LA DEUXIEME PARTIE REGROUPE LES ETUDES PARAMETRIQUES EFFECTUEES A L'AIDE DE DIVERS MODELES ELASTIQUES LINEAIRES (ANALYTIQUE ET NUMERIQUE). ELLES MONTRENT QUE LE COMPORTEMENT DES STRUCTURES INVERSES EST DE TYPE SANDWICH: C'EST LA SUPERPOSITION D'UNE FLEXION GLOBALE (DE L'ENSEMBLE DES COUCHES SUR LA PLATE-FORME) ET D'UNE FLEXION LOCALE (DES COUCHES BITUMINEUSES SUR LA GRAVE NON TRAITEE). DANS LA TROISIEME PARTIE, DES CALCULS SYSTEMATIQUES EFFECTUES SUR DEUX TYPES DE STRUCTURES INVERSES EN GRAVE CIMENT, ONT PERMIS DE METTRE AU POINT DES ABAQUES PRATIQUES DE DIMENSIONNEMENT ET DE VERIFICATION. CES ABAQUES, OU L'EPAISSEUR DE LA GRAVE NON TRAITEE EST VARIABLE, CONSTITUENT UN ELARGISSEMENT DE LA FICHE PARU DANS LE CADRE DE L'ACTUALISATION EN 1988 DU CATALOGUE DES STRUCTURES LCPC-SETRA. DES EXPERIMENTATIONS IN SITU (QUATRIEME PARTIE) ET EN LABORATOIRE (CINQUIEME PARTIE) ONT CONFIRME LES RESULTATS OBTENUS AVEC LES MODELES THEORIQUES, NOTAMMENT SUR LE MODE DE COMPORTEMENT. ELLES ONT AINSI VALIDE LES HYPOTHESES SUR LES CARACTERISTIQUES DES MAERIAUX RETENUES DANS LES CALCULS

CE TRAVAIL VISE A AFFINER LE DIMENSIONNEMENT RATIONNEL DES STRUCTURES DE CHAUSSEES SOUPLES ET INVERSES, PAR UNE ETUDE ET UNE PRISE EN COMPTE PLUS RIGOUREUSES DU ROLE ET DU COMPORTEMENT MECANIQUE DES MATERIAUX NON TRAITES, DONT LA CONNAISSANCE RESTE ENCORE TROP APPROXIMATIVE ET EMPIRIQUE. LA PREMIERE PARTIE PRESENTE PLUSIEURS ASPECTS DU DIMENSIONNEMENT DES CHAUSSEES SOUPLES OU INVERSES ET EN RAPPELLE LES HYPOTHESES USUELLES. APRES EN AVOIR SOULIGNE LES LACUNES, DES AMELIORATIONS SONT PROPOSEES, EN PARTICULIER SUR LES PLANS DE LA MODELISATION MECANIQUE DES MATERIAUX, DES METHODES DE CALCUL ET DES MESURES DE VALIDATION ET DE RECONNAISSANCE. DANS LA PARTIE SUIVANTE, LE COMPORTEMENT DES GRAVES NON TRAITEES ET DES SOLS SUPPORT SOUMIS A DES CHARGEMENTS REPETES A GRAND NOMBRE DE CYCLES, EST ETUDIE A L'APPAREIL TRIAXIAL, SOUS L'ANGLE DU ROLE DES CARACTERISTIQUES PHYSIQUES, DE LA MODELISATION DES DEFORMATIONS MACROSCOPIQUES REVERSIBLES ET IRREVERSIBLES ET DE LA CLASSIFICATION DES MATERIAUX. LE CALCUL EN ELEMENTS FINIS MIS EN UVRE DANS LA TROISIEME PARTIE INTEGRE L'ELASTICITE NON LINEAIRE DES MATERIAUX NON TRAITES ET LES LOIS DE FLUAGE SOUS CHARGE CYCLIQUE. DE NOMBREUX EXEMPLES SONT ETUDIES ET LES CONSEQUENCES PRATIQUES SUR LE DIMENSIONNEMENT DES STRUCTURES DE CHAUSSEES SONT EXPOSEES. LES RESULTATS D'EXPERIMENTATIONS SUR DES CHAUSSEES EN PLACE SONT FINALEMENT PRESENTES ET DES METHODES PLUS RIGOUREUSES DE TRAITEMENT ET D'INTERPRETATION DES MESURES DE DEFLEXION ET D'OVALISATION SONT PROPOSEES ET DEVELOPPEES. LA VALIDATION DES MODELES ET UNE RECONNAISSANCE DE PARAMETRES MECANIQUES EN PLACE SONT EGALEMENT EFFECTUEES

Physical Modelling in Geotechnics collects more than 1500 pages of peer-reviewed papers written by researchers from over 30 countries, and presented at the 9th International Conference on Physical Modelling in Geotechnics 2018 (City, University of London, UK 17-20 July 2018). The ICPMG series has grown such that two volumes of proceedings were required to publish all contributions. The books represent a substantial body of work in four years. Physical Modelling in Geotechnics contains 230 papers, including eight keynote and themed lectures representing the state-of-the-art in physical modelling research in aspects as diverse as fundamental modelling including sensors, imaging, modelling techniques and scaling, onshore and offshore foundations, dams and embankments, retaining walls and deep excavations, ground improvement and environmental engineering, tunnels and geohazards including significant contributions in the area of seismic engineering. ISSMGE TC104 have identified areas for special attention including education in physical modelling and the promotion of physical modelling to industry. With this in mind there is a special themed paper on education, focusing on both undergraduate and postgraduate teaching as well as practicing geotechnical engineers. Physical modelling has entered a new era with the advent of exciting work on real time interfaces between physical and numerical modelling and the growth of facilities and expertise that enable development of so called ‘megafuges’ of 1000gtonne capacity or more; capable of modelling the largest and most complex of geotechnical challenges. Physical Modelling in Geotechnics will be of interest to professionals, engineers and academics interested or involved in geotechnics, geotechnical engineering and related areas. The 9th International Conference on Physical Modelling in Geotechnics was organised by the Multi Scale Geotechnical Engineering Research Centre at City, University of London under the auspices of Technical Committee 104 of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE). City, University of London, are pleased to host the prestigious international conference for the first time having initiated and hosted the first regional conference, Eurofuge, ten years ago in 2008. Quadrennial regional conferences in both Europe and Asia are now well established events giving doctoral researchers, in particular, the opportunity to attend an international conference in this rapidly evolving specialist area. This is volume 1 of a 2-volume set.

This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.

This volume gathers the latest advances, innovations, and applications in the field of accelerated pavement testing (APT), presented at the 6th International Conference on Accelerated Pavement Testing, in Nantes, France, in April 2022. Discussing APT, which involves rapid testing of full-scale pavement constructions for structural deterioration, the book covers topics such as APT facilities, APT of asphalt concrete and sustainable/innovative materials, APT for airfield pavements, testing of maintenance and rehabilitation solutions, testing of smart and multi-functional pavements, data analysis and modeling, monitoring and non-destructive testing, and efficient means of calibrating/developing pavement design methods. Featuring peer-reviewed contributions by leading international researchers and engineers, the book is a timely and highly relevant resource for materials scientists and engineers interested in determining the performance of pavement structures during their service life (10+ years) in a few weeks or months.