Analyse des incertitudes dans l'évaluation des tassements causés lors de travaux souterrains en site urbain

Analyse des incertitudes dans l'évaluation des tassements causés lors de travaux souterrains en site urbain
Author: Mahmoud El Gonnouni
Publisher:
Total Pages: 173
Release: 2004
Genre:
ISBN:

Download Analyse des incertitudes dans l'évaluation des tassements causés lors de travaux souterrains en site urbain Book in PDF, Epub and Kindle

L'objet de cette étude est d'évaluer l'influence des incertitudes liées à la variabilité du sol (variabilité stratigraphique et rhéologique) dans la modélisation numérique des tassements causés par la construction des ouvrages souterrains en site urbain. Sur la base des nombreux essais in situ, la technique du krigeage appliquée à la stratigraphie est justifiée et appliquée afin d'évaluer l'incertitude sur la position des différentes couches composant le massif. Cette incertitude a été intégrée dans le calcul des mouvements de terrain lors du creusement d'un ouvrage souterrain afin d'estimer l'incertitude relative aux tassements de surface. Parallèlement à cette étude, la méthode des éléments finis stochastiques a été mise en œuvre pour évaluer les dispersions dans les résultats numériques liées à la méconnaissance des paramètres rhéologiques du sol.

Méthode de prévision des tassements provoqués par le creusement des tunnels urbains et influence des présoutènements

Méthode de prévision des tassements provoqués par le creusement des tunnels urbains et influence des présoutènements
Author: Nicolas Gilleron
Publisher:
Total Pages: 0
Release: 2016
Genre:
ISBN:

Download Méthode de prévision des tassements provoqués par le creusement des tunnels urbains et influence des présoutènements Book in PDF, Epub and Kindle

Dans un contexte mondial d'accroissement de la demande en travaux souterrains en sites urbains, l'ingénieur doit disposer d'outils et de méthodes performants pour concevoir des ouvrages sûrs, à risques évalués et maîtrisés. La prévision des tassements provoqués par le creusement de tunnels en site urbain repose largement sur des méthodes empiriques. Dans ce mémoire, on propose une méthode de prévision des tassements pour des tunnels creusés par la méthode conventionnelle avec présoutènements. Cette méthode est basée sur des modèles éléments finis tridimensionnels avec CESAR-LCPC. On s'intéresse d'abord aux spécificités des tunnels urbains, et aux limites des différentes méthodes empiriques et numériques. On introduit ensuite une loi de comportement du sol qui combine une élasticité non-linéaire et une isotropie transverse. Le modèle reproduit le profil, notamment la largeur, des cuvettes de tassements empiriques de référence et facilite les études de sensibilité. Le dimensionnement des présoutènements, boulons en fibre de verre et voûte parapluie, est ensuite décrit pour la maîtrise des tassements. La dernière partie est une étude de cas d'une conception par analyse de risques d'un ouvrage représentatif du contexte du Grand Paris Express.

Beyond 2000 in Computational Geotechnics

Beyond 2000 in Computational Geotechnics
Author: Ronald B.J. Brinkgreve
Publisher: CRC Press
Total Pages: 336
Release: 1999-01-01
Genre: Technology & Engineering
ISBN: 9789058090409

Download Beyond 2000 in Computational Geotechnics Book in PDF, Epub and Kindle

This volume contains papers presented during the first international PLAXIS symposium. Topics covered include: general geo-technical aspects; tunnels and deep excavations, and education and research. This pack is meant for the user of the PLAXIS program, as well as engineers and researchers.

Geotechnical Aspects of Underground Construction in Soft Ground

Geotechnical Aspects of Underground Construction in Soft Ground
Author: Giulia Viggiani
Publisher: CRC Press
Total Pages: 1100
Release: 2012-09-05
Genre: Technology & Engineering
ISBN: 0203803582

Download Geotechnical Aspects of Underground Construction in Soft Ground Book in PDF, Epub and Kindle

Geotechnical Aspects of Underground Construction in Soft Ground comprises a collection of 118 papers, four reports on symposium themes, and four invited lectures presented at the seventh International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, held in Rome, Italy, 16-18 May 2011.The symposium was organized by the

Spaces and Identities in Border Regions

Spaces and Identities in Border Regions
Author: Christian Wille
Publisher: transcript Verlag
Total Pages: 385
Release: 2015-11-30
Genre: Social Science
ISBN: 3839426502

Download Spaces and Identities in Border Regions Book in PDF, Epub and Kindle

Spatial and identity research operates with differentiations and relations. These are particularly useful heuristic tools when examining border regions where social and geopolitical demarcations diverge. Applying this approach, the authors of this volume investigate spatial and identity constructions in cross-border contexts as they appear in everyday, institutional and media practices. The results are discussed with a keen eye for obliquely aligned spaces and identities and relinked to governmental issues of normalization and subjectivation. The studies base upon empirical surveys conducted in Germany, France, Belgium and Luxembourg.

The Routledge Research Companion to Border Studies

The Routledge Research Companion to Border Studies
Author: Professor Doris Wastl-Walter
Publisher: Ashgate Publishing, Ltd.
Total Pages: 728
Release: 2012-11-28
Genre: Social Science
ISBN: 1409490165

Download The Routledge Research Companion to Border Studies Book in PDF, Epub and Kindle

This comprehensive volume brings together a multidisciplinary team of leading scholars to provide an authoritative, state-of-the-art review of all aspects of borders and border research. It is global in scope and embraces the more traditional strands of the field including geopolitics, migration and territorial identities, and also recently emerging topics such as the role of borders in a seemingly borderless world; creating neighbourhoods, and border enforcement in the post-9/11 era.

EURO:TUN 2013 : computational methods in tunneling and subsurface engineering ; proceedings of the Third International Conference on Computational Methods in Tunnelling and Subsurface Engineering ; Ruhr University Bochum, April 17-19, 2013

EURO:TUN 2013 : computational methods in tunneling and subsurface engineering ; proceedings of the Third International Conference on Computational Methods in Tunnelling and Subsurface Engineering ; Ruhr University Bochum, April 17-19, 2013
Author: EURO:TUN
Publisher:
Total Pages: 926
Release: 2013
Genre: Excavation
ISBN: 9783942052016

Download EURO:TUN 2013 : computational methods in tunneling and subsurface engineering ; proceedings of the Third International Conference on Computational Methods in Tunnelling and Subsurface Engineering ; Ruhr University Bochum, April 17-19, 2013 Book in PDF, Epub and Kindle

Ancient Greek Houses and Households

Ancient Greek Houses and Households
Author: Bradley A. Ault
Publisher: University of Pennsylvania Press
Total Pages: 201
Release: 2011-01-01
Genre: History
ISBN: 0812204433

Download Ancient Greek Houses and Households Book in PDF, Epub and Kindle

Seeking to expand both the geographical range and the diversity of sites considered in the study of ancient Greek housing, Ancient Greek Houses and Households takes readers beyond well-established studies of the ideal classical house and now-famous structures of Athens and Olynthos. Bradley A. Ault and Lisa C. Nevett have brought together an international team of scholars who draw upon recent approaches to the study of households developed in the fields of classical archaeology, ancient history, and anthropology. The essays cover a broad range of chronological, geographical, and social contexts and address such topics as the structure and variety of households in ancient Greece, facets of domestic industry, regional diversity in domestic organization, and status distinctions as manifested within households. Ancient Greek Houses and Households views both Greek houses and the archeological debris found within them as a means of investigating the basic unit of Greek society: the household. Through this approach, the essays successfully point the way toward a real integration between material and textual data, between archeology and history. Contributors include William Aylward (University of Wisconsin, Madison), Nicholas Cahill (University of Wisconsin, Madison), Manuel Fiedler (Freie Universität, Berlin), Franziska Lang (Humboldt Universität, Berlin), Monike Trümper (Universität Heidelberg), and Barbara Tsakirgis (Vanderbilt University, Nashville).

Relief Sculpture of the Mausoleum at Halicarnassus

Relief Sculpture of the Mausoleum at Halicarnassus
Author: Brian Cook
Publisher: Oxford University Press
Total Pages: 216
Release: 2005-03-31
Genre: Art
ISBN: 9780198132127

Download Relief Sculpture of the Mausoleum at Halicarnassus Book in PDF, Epub and Kindle

The Mausoleum at Halicarnassus was one of the Seven Wonders of the World. This is the first complete catalogue of its friezes and other decorative reliefs. Detailed descriptions are illustrated by hundreds of previously unpublished photographs. Also discussed are the discovery of the Mausoleum and the controversy about who carved its friezes.