Etude de la stabilité d'un talus renforcé par des nappes géotextiles PDF Download
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Author: Alain Blanchier
Publisher:
ISBN:
Category :
Languages : fr
Pages : 167
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Book Description
ETUDE THEORIQUE DE CETTE STABILITE SUPPOSANT QUE LA DEFORMATION DU TALUS PEUT ETRE REPRESENTEE PAR DES GLISSEMENTS SUCCESSIFS LE LONG DE CERCLES CONCENTRIQUES. L'ETUDE COMPORTE: UNE ANALYSE DE LA TRANSMISSION DES EFFORTS ENTRE LE SOL ET LE GEOTEXTILE; UNE ETUDE DES DEFORMATIONS CONJOINTES DES NAPPES TEXTILES ET DU TALUS TENANT COMPTE DE GLISSEMENTS EVENTUELS. L'ETUDE EST SUIVI D'INDEXATIONS SUR UNE METHODOLOGIE INFORMATIQUE POSSIBLE. DIVERS ALGORITHMES PERMETTANT D'ACCEDER AUX DEFORMATIONS, AUX EFFORTS, A LA STABILITE D'ENSEMBLE
Author: Alain Blanchier
Publisher:
ISBN:
Category :
Languages : fr
Pages : 167
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Book Description
ETUDE THEORIQUE DE CETTE STABILITE SUPPOSANT QUE LA DEFORMATION DU TALUS PEUT ETRE REPRESENTEE PAR DES GLISSEMENTS SUCCESSIFS LE LONG DE CERCLES CONCENTRIQUES. L'ETUDE COMPORTE: UNE ANALYSE DE LA TRANSMISSION DES EFFORTS ENTRE LE SOL ET LE GEOTEXTILE; UNE ETUDE DES DEFORMATIONS CONJOINTES DES NAPPES TEXTILES ET DU TALUS TENANT COMPTE DE GLISSEMENTS EVENTUELS. L'ETUDE EST SUIVI D'INDEXATIONS SUR UNE METHODOLOGIE INFORMATIQUE POSSIBLE. DIVERS ALGORITHMES PERMETTANT D'ACCEDER AUX DEFORMATIONS, AUX EFFORTS, A LA STABILITE D'ENSEMBLE
Author: Roy H. Borden
Publisher:
ISBN:
Category : Geosynthetics
Languages : en
Pages : 732
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Author: J.P. Giroud
Publisher:
ISBN: 9780935803020
Category :
Languages : en
Pages : 948
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Author: Patrick Lemonnier
Publisher:
ISBN:
Category :
Languages : fr
Pages :
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Book Description
La méthode du prisme de rupture variationnelle, mise au point par BAKER et GARBER (1977) dans le cas des talus non renforcés, a été appliquée aux talus renforcés par des nappes géosynthétiques. Grâce à cette formulation, on démontre que la forme de la trace de la surface de rupture des talus renforcés, est une spirale logarithmique d'angle Ør (angle de frottement réduit du sol). Pour évaluer la contribution des renforts dans l'étude de la stabilité, un modèle théorique, basé sur l'approche variationnelle, a été élaboré. Il permet, pour chaque nappe, de déterminer la tension mobilisée au niveau de la ligne de glissement, grâce à l'équilibre local couplé avec les lois de comportement de la nappe et de l'interface sol-nappe. En outre, il permet de déterminer la répartition des tensions et des déplacements relatifs sol-nappe en tout point des nappes. L'originalité de cette approche est de permettre la détermination de la position optimale de la nappe pour laquelle on obtient la tension extrémale au niveau de l'intersection nappe-surface de rupture. Cette modélisation est basée sur des hypothèses à priori sur la répartition des contraintes agissant sur la face supérieure des nappes. Cependant, les résultats numériques apparaissent très peu sensibles à ces hypothèses. Un logiciel de calcul a été développé. Il permet, après l'étude de l'équilibre local de chaque nappe, d'évaluer la stabilité globale du talus renforcé
Author:
Publisher:
ISBN:
Category : Geotextiles
Languages : en
Pages : 416
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Author:
Publisher:
ISBN:
Category : Earthwork
Languages : en
Pages : 414
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Author: Phung Duc Long
Publisher: Springer Nature
ISBN: 9811521840
Category : Science
Languages : en
Pages : 1417
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Book Description
This book presents 09 keynote and invited lectures and 177 technical papers from the 4th International Conference on Geotechnics for Sustainable Infrastructure Development, held on 28-29 Nov 2019 in Hanoi, Vietnam. The papers come from 35 countries of the five different continents, and are grouped in six conference themes: 1) Deep Foundations; 2) Tunnelling and Underground Spaces; 3) Ground Improvement; 4) Landslide and Erosion; 5) Geotechnical Modelling and Monitoring; and 6) Coastal Foundation Engineering. The keynote lectures are devoted by Prof. Harry Poulos (Australia), Prof. Adam Bezuijen (Belgium), Prof. Delwyn Fredlund (Canada), Prof. Lidija Zdravkovic (UK), Prof. Masaki Kitazume (Japan), and Prof. Mark Randolph (Australia). Four invited lectures are given by Prof. Charles Ng, ISSMGE President, Prof.Eun Chul Shin, ISSMGE Vice-President for Asia, Prof. Norikazu Shimizu (Japan), and Dr.Kenji Mori (Japan).
Author: Robert Koerner
Publisher: Woodhead Publishing
ISBN: 0081002343
Category : Technology & Engineering
Languages : en
Pages : 644
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Book Description
Geotextiles: From Design to Applications presents valuable information on the high performance fabrics used in soil separation, drainage, filtration, reinforcement, and cushioning. These polymeric materials offer solutions for geoengineering and other civil engineering specialties due to their advanced physical, mechanical, hydraulic, and endurance properties. This important book offers comprehensive coverage of the manufacture, functions, properties, designs, and applications of geotextiles. Part One begins with a chapter on the history of geotextiles, followed by chapters giving detailed reviews of the types of fabrics and their manufacturing processes, from resin type, to fiber extrusion, to textile fabrication. Part Two covers the properties, behavior, and testing of geotextiles, with Part Three focusing on applications dealing with the specific primary functions of geotextiles. In Part Four, chapters offer numerous general applications of geotextiles, including those in waste containment, marine engineering, walls/slopes, agriculture, and erosion control. Finally, the chapters of Part Five address quality control and assurance for geotextiles, and the increasingly important topic of sustainability. - Reviews the types of fabrics used for geotextiles and their manufacturing processes - Covers the properties, behavior, and testing of geotextiles - Contains detailed discussions of the primary functions of geotextiles and their wide range of applications
Author: Malcolm D Bolton
Publisher: Universities Press
ISBN: 9788173714252
Category : Soil mechanics
Languages : en
Pages : 464
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Book Description
Covers all the soil mechanics and foundation engineering topics that are commonly included in civil engineering degree courses, and provides a number of springboards into related advanced topics. Although it is intended principally to satisfy the needs of student civil engineers, this guide should also prove useful to those practicing engineers who are unaware of the powerful and elegant reconstruction of the subject which has been made possible by the recent concepts of plasticity, dilatancy and critical states.
Author: Terry W. Sturm
Publisher: DIANE Publishing
ISBN: 1428995048
Category : Bridges
Languages : en
Pages : 147
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Book Description
Experimental results and analyses are given in this report on bridge abutment scour in compound channels. Experiments were conducted in a laboratory flume with a cross section consisting of a wide floodplain adjacent to a main channel. The embankment length, discharge, sediment size, and abutment shape were varied, and the resulting equilibrium scour depths were measured. Water-surface profiles, velocities, and scour-hole contours were also measured. In the report, a methodology is developed for estimating abutment scour that takes into account the redistribution of discharge in the bridge contraction, abutment shape, sediment size, and tailwater depth. The independant variables in the proposed scour formula are evaluated at the approach-channel cross section and can be obtained froma one-dimensional water-surface profile computer program such as the Water-Surface Profile Program (WSPRO). The proposed scour evaluation procedure is outlined and illustrated, including consideration of the time required to reach equilibrium scour. The proposed methodology is applied to two cases of measured scour in the field.
