Download or read book Conception et r alisation d un outil int gr de mod lisation des massifs rocheux fractur s en blocs written by Denis Heliot and published by . This book was released on 1988 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Etude du comportement m canique des massifs rocheux fractur s en blocs m thode l quilibre limite written by Marwan Asof and published by . This book was released on 1991 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: LE CREUSEMENT D'UNE EXCAVATION EN MASSIF ROCHEUX DANS LEQUEL LA PRESENCE DE DISCONTINUITES (FRACTURES) EST IMPORTANTE PERMET AUX BLOCS AUTOUR DE CELLE-CI DE TOMBER VERS LE VIDE. LE TRAVAIL EFFECTUE CONCERNE DONC LA MODELISATION DU COMPORTEMENT MECANIQUE DES MASSIFS ROCHEUX FRACTURES A PARTIR DE LA MODELISATION GEOMETRIQUE ISSUE DE RESOBLOK: BASE DE DEPART. CE TRAVAIL PEUT ETRE DECOMPOSE EN TROIS PARTIES. DANS LA PREMIERE PARTIE, NOUS ABORDERONS L'ELABORATION DES METHODOLOGIES ACTUELLES D'ANALYSE DE STABILITY EN MILIEU DISCONTINU. DEUX TECHNIQUES D'ETUDE DE BLOCS ISOLES FONDEES SUR L'ANALYSE DE L'EQUILIBRE LIMITE SERONT ENVISAGEES: LA THEORIE DU BLOC CLEF DE GOODMAN & SHI ET CELLE DE WARBURTON. LA PRISE EN COMPTE DE LA CONTRAINTE DE CONFINEMENT ET DE LA POSSIBILITE DU CHOIX DE SOUTENEMENT AVEC BOULONNAGE A EGALEMENT ETE DEVELOPPEE POUR QU'ELLE SOIT BIEN ADAPTEE A LEURS FORMULATIONS. LA SECONDE PARTIE PORTERA SUR LES ASPECTS RELATIFS AU CHOIX DES METHODES PROPOSEES, COMPTE TENU DE LA BASE DES DONNEES DES BLOCS, ET A LA REALISATION DU LOGICIEL BSA EN AVAL DE RESOBLOK. ENFIN, NOUS PRESENTERONS LES DIFFERENTES APPLICATIONS DE LA METHODOLOGIE DEVELOPPEE SUR LES CAS CONCRETS: MINE A CIEL OUVERT, CAVITE DE GRANDES DIMENSIONS ET GALERIE MINIERE A GRANDE PROFONDEUR. CES APPLICATIONS MONTRENT LE ROLE POSITIF DES MODELES DE BLOCS POUR CE QUI CONCERNE LA DESCRIPTION DES PHENOMENES ET LEUR COMPREHENSION.
Download or read book La fragmentation naturelle des massifs rocheux written by Luc Empereur-Mot and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: La connaissance du milieu fracturé tridimensionnel est basée sur l'observation directe ou indirecte d'extraits, en une ou deux dimensions. Les difficultés de visualisation en 3 dimensions et l'existence constante de nombreuses lacunes géométriques sont un handicap majeur pour la compréhension des lois de comportement complexes du milieu rocheux fracturé. Des modèles numériques dits "équivalents" répondent isolément à une problématique particulière du réseau de fractures (mécanique, hydraulique, thermique). Pourtant, un grand nombre de propriétés physiques du massif rocheux sont conditionnées par la géométrie et la topologie du système de fractures, qui reste une question d'ordre fondamental. C'est un aspect essentiel que nous traitons dans notre modèle OBSIFRAC (modèle objet pour la simulation de la fracturation). L'observation de sections naturelles justifie que l'on représente, dans un milieu soumis à la seule déformation cassante, les discontinuités par des surfaces planes, interconnectées, sans terminaisons libres, limitant des polyèdres convexes. Dés lors, le réseau de fractures peut être vu comme un assemblage de blocs. Cette hypothèse nous a permis de construire une base de données tridimensionnelles du réseau, décrivant de façon exhaustive les constituants géométriques de l'assemblage en question (fractures, blocs, faces, arêtes et noeuds). A partir d'un "germe" ponctuel, le processus de fragmentation affecte un ou plusieurs bloc(s) formé(ś) éventuellement de plusieurs polyèdres élémentaires. L'orientation et la position des plans de fractures peuvent ^etre définies de façon stochastique, statistique ou déterministe. Nous avons développé 4 moteurs de fragmentation, notés A, B, C, et D, qui diffèrent par le protocole de choix du germe d'une part, et par le choix du ou des blocs à diviser d'autre part. Nous présentons pour chaque scénario, une caractérisation descriptive, puis statistique.
Download or read book La fracturation naturelle des massifs rocheux mod les de blocs et bases de donn es tridimensionnelles written by Luc Empereur-Mot and published by . This book was released on 2001 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mineral and Thermal Groundwater Resources written by M. Albu and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Is it not generally believed that our town is a healthy place . . . a place highly com mended on this score both for the sick andfor the healthy? . . And then these Baths - the so-called 'artery' of the town, or the 'nerve centre' . . . Do you know what they are in reality, these great and splendid and glorious Baths that have cost so much money? . . A most serious danger to health! All that filth up in Melledal, where there's such an awful stench - it's all seeping into the pipes that lead to the pump-room! Henrik Ibsen, An Enemy of the People, 1882 Henrik Ibsen gave the 'truth about mineral water' more than 100 years ago in An Enemy of the People. His examples came not from the decadent bathing spas of Bohemia or Victorian Britain, but from the very edge of polite society, subarctic Norway! His masterpiece illustrates the central role that groundwaters and, in particular, mineral waters have played in the history of humanity: their economic importance for towns, their magnetism for pilgrims searching for cures, the political intrigues, the arguments over purported beneficent or maleficent health effects and, finally, their contami nation by anthropogenic activity, in Ibsen's case by wastes from a tannery. This book addresses the occurrence, properties and uses of mineral and thermal groundwaters. The use of these resources for heating, personal hygiene, curative and recreational purposes is deeply integrated in the history of civilization.
Download or read book Dictionary of Building and Civil Engineering written by Don Montague and published by Taylor & Francis. This book was released on 1996 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book UNESCO General History of Africa Vol I Abridged Edition written by Jacqueline Ki-Zerbo and published by Univ of California Press. This book was released on 1990 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This volume covers the period from the end of the Neolithic era to the beginning of the seventh century of our era. This lengthy period includes the civilization of Ancient Egypt, the history of Nubia, Ethiopia, North Africa and the Sahara, as well as of the other regions of the continent and its islands."--Publisher's description
Download or read book Statistical Applications in the Earth Sciences written by F. P. Agterberg and published by Energy, Mines and Resources Canada. This book was released on 1990 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collection of papers presented at the Colloquium, covering the broad subject areas of spatial data integration, statistical analysis of geoscience data, and quantitative stratigraphy. Working Group reports are included as well.
Download or read book The Boundaries of the West African Craton written by Nasser Ennih and published by Geological Society of London. This book was released on 2008 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Guide to Rock Art Sites written by David S. Whitley and published by Mountain Press Publishing. This book was released on 1996 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique full-color field guide is essential for anyone who seeks to understand why shamans in the Far West created rock art and what they sought to depict. Whitley is on the cutting edge of dating and interpreting the images as well as describing the
Download or read book Paths to Complexity written by Manuel Fernández-Götz and published by Oxbow Books Limited. This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 21 papers in this volume cover the whole Iron Age from ca. 800 BC to the beginning of the Common Era, exploring the origins of urbanism.
Download or read book Statistics for Geoscientists written by D. Marsal and published by Elsevier. This book was released on 2014-06-28 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents nearly all the important elementary and analytical methods of statistics, designed for the needs of the geoscientist and completely free from higher mathematics. Translated from the second German edition.
Download or read book The Alalakh Tablets written by D. J. WISEMAN and published by British Institute at Ankara. This book was released on 2017-10-01 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume deals with the cuneiform tablets discovered by Sir Leonard Woolley in his excavation at Atshana, as interpreted by D.J.Wiseman, Assistant Keeper in the Department of Egyptian and Assyrian Antiquities of the British Museum. The book forms an appropriate companion to No. 1 of this series, The State of Idri-mi, by Professor Sidney Smith, which was published in 1949.
Download or read book The Problems of the Arid Zone written by Unesco and published by paris. This book was released on 1962 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nature and Culture in the Democratic Republic of Congo written by and published by . This book was released on 2004 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mycenaeans written by Lord William Taylour and published by W W Norton & Company Incorporated. This book was released on 1990 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies the distinctive culture of the Mycenaeans, examining the architectural, engineering and artistic achievements of this civilization which dominated the pre-Classical era of Greek history.
Download or read book Greece in the Bronze Age written by Emily Vermeule and published by . This book was released on 1964 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
