Etude Experimentale De La Sedimentation Consolidation Et De Lacquisition De Resistance Dun Sol Fin

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Étude expérimentale de la sédimentation-consolidation et de l'acquisition de résistance d'un sol fin

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Author : Françoise Masutti
Publisher :
ISBN 13 :
Total Pages : 298 pages
Book Rating : 4.:/5 (492 download)

Book Synopsis Étude expérimentale de la sédimentation-consolidation et de l'acquisition de résistance d'un sol fin by : Françoise Masutti

Download or read book Étude expérimentale de la sédimentation-consolidation et de l'acquisition de résistance d'un sol fin written by Françoise Masutti and published by . This book was released on 2001 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les situations d'envasement (barrages, estuaires), la stabilité de fonds marins, l'évolution de bassins de décantation d'effluents issus de diverses activités humaines constituent des phénomènes ou des procédés fortement conditionnés par le comportement de sédiments fins de teneur en eau élevée. Situés à la frontière entre milieux fluide et solide, ces matériaux sont particulièrement complexes et évolutifs et nécessitent des études interdisciplinaires. La description et la prédiction de leur comportement reposent sur la détermination de lois caractéristiques ; l'expérimentation en laboratoire constitue donc une étape préalable indispensable à la compréhension des phénomènes gouvernant la formation de ces sols. Dans ce contexte, cette étude concerne plus particulièrement le début de la consolidation et repose sur deux approches complémentaires incluant la mise en œuvre de dispositifs expérimentaux spécifiques : (i) banc gammamétrique et colonnes de sédimentation instrumentées permettant la simulation du processus de dépôt de suspensions de kaolin et la mesure non-destructive de certains paramètres ; (ii) système de type piézocône, adapté à la mesure en place de faibles valeurs de résistance au cisaillement non drainé. Le comportement des suspensions et des dépôts est analysé en terme d'évolution, au cours du temps, de la position de leur surface, de leur densité, de leur cohésion, des surpressions interstitielles, des contraintes effectives. Les résultats font l'objet d'une analyse géotechnique comparative entre différents modes de consolidation, d'une part pour mettre en évidence la continuité du processus sur un domaine étendu de contraintes et d'indice des vides, d'autre part afin d'étudier le comportement mécanique des dépôts obtenus en laboratoire parallèlement à celui observé in situ sur des sédiments marins récents. Nous abordons également la notion de " transition " sédimentation-consolidation, de manière classique et sous l'angle de l'acquisition de résistance.

Etude expérimentale de la sédimentation-consolidation et de l'acquisition de résistance d'un sol fin

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Author : Françoise Masutti
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (494 download)

Book Synopsis Etude expérimentale de la sédimentation-consolidation et de l'acquisition de résistance d'un sol fin by : Françoise Masutti

Download or read book Etude expérimentale de la sédimentation-consolidation et de l'acquisition de résistance d'un sol fin written by Françoise Masutti and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Les situations d'envasement (barrages, estuaires), la stabilité de fonds marins, l'évolution de bassins de décantation d'effluents issus de diverses activités humaines constituent des phénomènes ou des procédés fortement conditionnés par le comportement de sédiments fins de teneur en eau élevée. Situés à la frontière entre milieux fluide et solide, ces matériaux sont particulièrement complexes et évolutifs et nécessitent des études interdisciplinaires. La description et la prédiction de leur comportement reposent sur la détermination de lois caractéristiques ; l'expérimentation en laboratoire constitue donc une étape préalable indispensable à la compréhension des phénomènes gouvernant la formation de ces sols. Dans ce contexte, cette étude concerne plus particulièrement le début de la consolidation et repose sur deux approches complémentaires incluant la mise en œuvre de dispositifs expérimentaux spécifiques : (i) banc gammamétrique et colonnes de sédimentation instrumentées permettant la simulation du processus de dépôt de suspensions de kaolin et la mesure non-destructive de certains paramètres ; (ii) système de type piézocône, adapté à la mesure en place de faibles valeurs de résistance au cisaillement non drainé. Le comportement des suspensions et des dépôts est analysé en terme d'évolution, au cours du temps, de la position de leur surface, de leur densité, de leur cohésion, des surpressions interstitielles, des contraintes effectives. Les résultats font l'objet d'une analyse géotechnique comparative entre différents modes de consolidation, d'une part pour mettre en évidence la continuité du processus sur un domaine étendu de contraintes et d'indice des vides, d'autre part afin d'étudier le comportement mécanique des dépôts obtenus en laboratoire parallèlement à celui observé in situ sur des sédiments marins récents. Nous abordons également la notion de " transition " sédimentation-consolidation, de manière classique et sous l'angle de l'acquisition de résistance.

Etude expérimentale et numérique du début de consolidation de sols de très forte teneur en eau

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Author : Quoc Duy Nguyen
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (97 download)

Book Synopsis Etude expérimentale et numérique du début de consolidation de sols de très forte teneur en eau by : Quoc Duy Nguyen

Download or read book Etude expérimentale et numérique du début de consolidation de sols de très forte teneur en eau written by Quoc Duy Nguyen and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: L'objectif de ce travail est d'améliorer les connaissances du processus de sédimentation-consolidation des sols de très forte teneur en eau, avec une extension à la prise en compte de la ségrégation et de l'évolution de la cohésion. Ce thème est situé à la frontière hydraulique-géotechnique, et présente d'importantes applications à la gestion des sédiments lacustres ou estuariens et des boues industrielles. La méthodologie d'étude repose les expérimentations en laboratoire et in situ, et la modélisation théorique et numérique. Les matériaux utilisés sont des mélanges artificiels de kaolin et de sable de Fontainebleau, et des vases naturelles. Les travaux expérimentaux reposent sur (i) l'amélioration d'un banc gammadensimétrique asservi de laboratoire permettant le suivi non pertubant de la densité et la pression interstitielle dans le sol en cours de formation, (ii) le développement d'un nouveau pénétromètre sur site en laboratoire adapté aux sédiments de très faible résistance, (iii) le développement d'essais de ségrégation en laboratoire avec suivi granulométrique peu perturbant. L'interprétation des essais permet de proposer des lois de comportement de la fraction fine (contrainte effective et perméabilité réduite) qui sont fonction de la concentration avec à deux paramètres. La ségrégation peut être intégrée à l'aide d'une loi de Stockes adaptée. Les travaux de modélisation sont basés sur la théorie de consolidation aux grandes déformations de Gibson, étendue de manière continue aux domaines de Kynch et Stokes. Une extension est proposée pour prendre en compte la ségrégation par la chute de la fraction grossière dans une pâte constituée de fines et d'eau, pouvant se consolider. L'application industrielle a été réalisée en partenariat avec EDF sur le réservoir du barrage d'Oytier (Alpes), et a permis de donner des éléments d'appréciation (évolution des concentrations et des résistances) de la faisabilité des méthodes de soutirage de sédiment frais derrière les barrages hydroélectriques. Les apports de ce travail permettent d'ouvrir de nombreuses perspectives de recherche sur la liaison hydraulique-géotechnique dans les milieux littoraux, estuariens, portuaires ou lacustres.

ETUDE EXPERIMENTALE DU DEBUT DE CONSOLIDATION DE SEDIMENTS FINS NATURELS

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Author : GILBERT.. LE BRAS
Publisher :
ISBN 13 :
Total Pages : 208 pages
Book Rating : 4.:/5 (49 download)

Book Synopsis ETUDE EXPERIMENTALE DU DEBUT DE CONSOLIDATION DE SEDIMENTS FINS NATURELS by : GILBERT.. LE BRAS

Download or read book ETUDE EXPERIMENTALE DU DEBUT DE CONSOLIDATION DE SEDIMENTS FINS NATURELS written by GILBERT.. LE BRAS and published by . This book was released on 2000 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'ETUDE DU DEBUT DE CONSOLIDATION DES SEDIMENTS FINS PRESENTE UN GRAND INTERET SCIENTIFIQUE PAR SON ASPECT INTERDISCIPLINAIRE A LA FRONTIERE HYDRAULIQUE-GEOTECHNIQUE. CE THEME EST EGALEMENT MARQUE PAR L'IMPORTANCE DE SES APPLICATIONS A LA GESTION DES ZONES COTIERES AMENAGEES OU NATURELLES, ESTUARIENNES OU LITTORALES. NOUS PROPOSONS UNE DEMARCHE SCIENTIFIQUE CONDUISANT A UNE SERIE D'APPORTS ORIGINAUX ET ASSOCIANT DES METHODOLOGIES ISSUES DES APPROCHES HYDRAULIQUES ET GEOTECHNIQUES : - L'AMELIORATION ET LA MISE AU POINT D'UN SYSTEME EXPERIMENTAL (BANC GAMMADENSIMETRIQUE ASSERVI) PERMETTANT DE MESURER L'EVOLUTION DES DENSITES ET DES PRESSIONS INTERSTITIELLES LORS D'UN ESSAI EN COLONNE SUR UN SEDIMENT NATUREL - LA MISE EN UVRE D'ESSAIS PARAMETRIQUES AFIN DE CERNER L'IMPORTANCE DE DIFFERENTES CONDITIONS INITIALES - LA CONCEPTION ET LA REALISATION D'UN CODE DE TRAITEMENT DES DONNEES MESUREES, PERMETTANT D'EXAMINER LA VALIDITE DE LOIS DE COMPORTEMENT - UNE ANALYSE POUSSEE DES VALEURS TRAITEES, AVEC CHOIX DES MODES DE REPRESENTATION DES VALEURS NOUS AVONS AINSI ETE AMENES A METTRE EN UVRE DE NOUVEAUX MOYENS D'ANALYSE, BASES SUR LA COMPREHENSION PHYSIQUE D'UN PHENOMENE TROP SOUVENT NEGLIGE : LA SEGREGATION. CETTE ANALYSE NOUS A PERMIS D'ELABORER UN MODELE CONCEPTUEL DE COMPORTEMENT BASE SUR LE COMPORTEMENT DIFFERENCIE DES ELEMENTS GROSSIERS ET D'UNE PATE CONSTITUEE DES ELEMENTS FINS ET DE L'EAU. LES APPLICATIONS SCIENTIFIQUES ET INDUSTRIELLES DE CETTE ETUDE SONT PRINCIPALEMENT LA PREDICTION DES ENVASEMENTS DES SOUILLES ET CHENAUX, MAIS PEUVENT EGALEMENT CONCERNER D'AUTRES MATERIAUX IDENTIFIES COMME BOUES OU PATES. NOTRE DEMARCHE INTERDISCIPLINAIRE A PERMIS D'OBTENIR UN GRAND NOMBRE DE RESULTATS ORIGINAUX DEBOUCHANT SUR UNE MEILLEURE COMPREHENSION DES PROCESSUS LIES AU DEBUT DE CONSOLIDATION DES SEDIMENTS NATURELS, TOUT EN OUVRANT DE NOMBREUSES PERSPECTIVES DE RECHERCHE SUR LA LIAISON HYDRAULIQUE-GEOTECHNIQUE DANS LES MILIEUX LITTORAUX OU ESTUARIENS ET DANS LES SITES PORTUAIRES.

Animal-Sediment Relations

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Author : Peter McCall
Publisher : Springer
ISBN 13 : 9781475713183
Total Pages : 336 pages
Book Rating : 4.7/5 (131 download)

Book Synopsis Animal-Sediment Relations by : Peter McCall

Download or read book Animal-Sediment Relations written by Peter McCall and published by Springer. This book was released on 2013-03-28 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Benthic Boundary Layer

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Author : I. McCave
Publisher : Springer Science & Business Media
ISBN 13 : 1461587476
Total Pages : 322 pages
Book Rating : 4.4/5 (615 download)

Book Synopsis The Benthic Boundary Layer by : I. McCave

Download or read book The Benthic Boundary Layer written by I. McCave and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Conference on the Benthic Boundary Layer was held under the auspices of the NATO Science Committee as part of its continuing effort to promote the useful progress of science through international cooperation. Science Committee Conferences are deliberately designed to focus attention on unsolved problems, with carefully selected participants invited to provide complementary expertise from a variety of relevant disciplines. Through inten sive discussion in small groups they seek to reach a consensus on assessments and recommendations for future research emphasis, which it is hoped will be of value to the larger scientific community. The subjects treated over the past few years have been as varied as science itself-e.g., computer software engineering, chemical catalysis, and materials and energy research. The present effort evolved from informal discussions between marine geolo gists, chemists, and biologists which underlined the desirability of improved communication among those concerned with the benthic layer. In both scien tific and technological terms this is an exciting frontier, rich in promise but poorly understood at present. It is particularly striking to realize that there are at least as many definitions of the benthic layer as there are disciplines involved, and it seemed clear that there was much to be gained by a detailed exchange of views on research capabilities, trends, and priorities. The results of the meeting appear to have confirmed the hopes of the sponsors.

Structural Conservation of Stone Masonry

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Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)

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Download or read book Structural Conservation of Stone Masonry written by and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Soil Conservation Districts

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Author :
Publisher :
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.3/5 (243 download)

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Download or read book Soil Conservation Districts written by and published by . This book was released on 1963 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Genesis and Properties of Collapsible Soils

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Author : Tom Dijkstra
Publisher : Springer Science & Business Media
ISBN 13 : 9401100977
Total Pages : 409 pages
Book Rating : 4.4/5 (11 download)

Book Synopsis Genesis and Properties of Collapsible Soils by : Tom Dijkstra

Download or read book Genesis and Properties of Collapsible Soils written by Tom Dijkstra and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collapsing engineering soils are a formidable hazard around the world. These difficult materials also include some of the world's most fertile agricultural soils, fostering dense human populations which are therefore increasingly at risk. Despite an impressive literature on the engineering aspects of collapsing soils, these materials are coming under increasing scrutiny by scientists in other fields. This is most evidently the case with soil scientists, stratigraphers and sedimentologists. Past earth surface conditions have a direct influence on the detailed behaviour of collapsible soils: as a complement, these materials also provide detailed data on changing global climates. The selected papers presented here highlight the common ground between three scientific groups with a vested interest in a better understanding of collapsible soils.

ICREEC 2019

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Author : Ahmed Belasri
Publisher : Springer Nature
ISBN 13 : 9811554447
Total Pages : 659 pages
Book Rating : 4.8/5 (115 download)

Book Synopsis ICREEC 2019 by : Ahmed Belasri

Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.

Cities and Agriculture

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Author : Henk de Zeeuw
Publisher : Routledge
ISBN 13 : 1317506618
Total Pages : 374 pages
Book Rating : 4.3/5 (175 download)

Book Synopsis Cities and Agriculture by : Henk de Zeeuw

Download or read book Cities and Agriculture written by Henk de Zeeuw and published by Routledge. This book was released on 2015-09-16 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: As people increasingly migrate to urban settings and more than half of the world's population now lives in cities, it is vital to plan and provide for sustainable and resilient food systems which reflect this challenge. This volume presents experience and evidence-based "state of the art" chapters on the key dimensions of urban food challenges and types of intra- and peri-urban agriculture. The book provides urban planners, local policy makers and urban development practitioners with an overview of crucial aspects of urban food systems based on an up to date review of research results and practical experiences in both developed and developing countries. By doing so, the international team of authors provides a balanced textbook for students of the growing number of courses on sustainable agriculture, food and urban studies, as well as a solid basis for well-informed policy making, planning and implementation regarding the development of sustainable, resilient and just urban food systems.

Sustainability

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Author : Rao Y. Surampalli
Publisher : John Wiley & Sons
ISBN 13 : 1119433894
Total Pages : 696 pages
Book Rating : 4.1/5 (194 download)

Book Synopsis Sustainability by : Rao Y. Surampalli

Download or read book Sustainability written by Rao Y. Surampalli and published by John Wiley & Sons. This book was released on 2020-03-19 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive resource to sustainability and its application to the environmental, industrial, agricultural and food security sectors Sustainability fills a gap in the literature in order to provide an important guide to the fundamental knowledge and practical applications of sustainability in a wide variety of areas. The authors – noted experts who represent a number of sustainability fields – bring together in one comprehensive volume the broad range of topics including basic concepts, impact assessment, environmental and the socio-economic aspects of sustainability. In addition, the book covers applications of sustainability in environmental, industrial, agricultural and food security, as well as carbon cycle and infrastructural aspects. Sustainability addresses the challenges the global community is facing due to population growth, depletion of non-renewable resources of energy, environmental degradation, poverty, excessive generation of wastes and more. Throughout the book the authors discuss the economics, ecological, social, technological and systems perspectives of sustainability. This important resource: • Explores the fundamentals as well as the key concepts of sustainability; • Covers basic concepts, impact assessment, environmental and socio-economic aspects, applications of sustainability in environmental, industrial, agricultural and food security, carbon cycle and infrastructural aspects; • Argues the essentiality of sustainability in ensuring the propitious future of earth systems; and • Authored by experts from a range of various fields related to sustainability. Written for researchers and scientists, students and academics, Sustainability: Fundamentals and Applications is a comprehensive book that covers the basic knowledge of the topic combined with practical applications.

TransAntiquity

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Author : Domitilla Campanile
Publisher : Taylor & Francis
ISBN 13 : 1317377389
Total Pages : 277 pages
Book Rating : 4.3/5 (173 download)

Book Synopsis TransAntiquity by : Domitilla Campanile

Download or read book TransAntiquity written by Domitilla Campanile and published by Taylor & Francis. This book was released on 2017-02-03 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: TransAntiquity explores transgender practices, in particular cross-dressing, and their literary and figurative representations in antiquity. It offers a ground-breaking study of cross-dressing, both the social practice and its conceptualization, and its interaction with normative prescriptions on gender and sexuality in the ancient Mediterranean world. Special attention is paid to the reactions of the societies of the time, the impact transgender practices had on individuals’ symbolic and social capital, as well as the reactions of institutionalized power and the juridical systems. The variety of subjects and approaches demonstrates just how complex and widespread "transgender dynamics" were in antiquity.

Geology and Natural Hazards of the Fraser River Delta, British Columbia

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Author : John Joseph Clague
Publisher :
ISBN 13 :
Total Pages : 284 pages
Book Rating : 4.:/5 (31 download)

Book Synopsis Geology and Natural Hazards of the Fraser River Delta, British Columbia by : John Joseph Clague

Download or read book Geology and Natural Hazards of the Fraser River Delta, British Columbia written by John Joseph Clague and published by . This book was released on 1998 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 16 papers in this volume constitute a summary of recent research on the geological architecture and environment of the Fraser River delta, and the physical and chemical processes operating on it. The first two papers are overviews of the geological and seismic setting of the delta. The next two papers summarize present-day sedimentary environments on the delta. A third group of papers covers the geological architecture, or lithostratigraphy, of the delta and the biological structure or biofacies of the delta. The final group of papers is concerned with natural hazards and environmental issues, including earthquakes, geotechnical stability, and seafloor sediment geochemistry.

The Radiological Accident in Goiânia

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Author : International Atomic Energy Agency
Publisher :
ISBN 13 :
Total Pages : 174 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis The Radiological Accident in Goiânia by : International Atomic Energy Agency

Download or read book The Radiological Accident in Goiânia written by International Atomic Energy Agency and published by . This book was released on 1988 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Government and authorities in Brazil were faced with a tragic accident in Goiânia resulting from the misuse of a strongly radioactive medical teletherapy source not under radiation protection surveillance. The present report is divided into four parts: a chronology of destruction of the source, discovery of the accident and initial response; a description of the human consequences and the dosimetry and treatment of seriously exposed and contaminated persons; an account of the assessment of the environmental contamination and the remedial actions taken; and observations and recommendations. Appendices and annexes give an assessment of the effectiveness of international co-operation in the emergency response, and provide further information on: public communications; radiological survey equipment; guidelines for the discharge of patients; radiological protection; chemical decontamination; and the lessons learned.

Embracing Bell Beaker

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Author : Jos Kleijne
Publisher :
ISBN 13 :
Total Pages : 306 pages
Book Rating : 4.:/5 (11 download)

Book Synopsis Embracing Bell Beaker by : Jos Kleijne

Download or read book Embracing Bell Beaker written by Jos Kleijne and published by . This book was released on 2019 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book investigates how local communities across Europe adopt the Bell Beaker phenomenon during the 3rd millennium BC.

Surrealism and Architecture

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Author : Thomas Mical
Publisher : Psychology Press
ISBN 13 : 0415325196
Total Pages : 378 pages
Book Rating : 4.4/5 (153 download)

Book Synopsis Surrealism and Architecture by : Thomas Mical

Download or read book Surrealism and Architecture written by Thomas Mical and published by Psychology Press. This book was released on 2005 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twenty-one essays examining the relationship of surrealist thought to architectural theory and practice.