Overview
ABSTRACT
This article describes the different types of retaining structures (gravity walls, MSE, crib walls, embedded walls) and their design methods updated according to the Eurocode 7 standards. It follows upon article C242, which deals more precisely with strengths of passive and active earth pressures in the work in this type of construction in civil engineering and building.
Read this article from a comprehensive knowledge base, updated and supplemented with articles reviewed by scientific committees.
Read the articleAUTHORS
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Thomas SIMONNOT: Manager ACCOTEC, Gif-sur-Yvette (France)
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Yann JUILLIÉ: Expert to the Paris Court of Appeal Gif-sur-Yvette (France)
INTRODUCTION
The role of retaining structures is to hold back the mass of earth.
There are many different types of retaining structure, each with its own specific function and requiring specific internal stability studies. The two main families of retaining structures are walls and screens.
What all these structures have in common is the thrust exerted by the soil or rock mass retained. However, it is mainly the way in which this thrust force is absorbed that differentiates the different types of structure.
After classifying the various types of retaining structure, we outline the main steps in the design process for each type.
The general principle of support design is based on the following checks.
At the end of the article, readers will find a glossary of important terms and expressions used throughout the article.
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KEYWORDS
Civil engineering | road construction | building
This article is included in
Soil mechanics and geotechnics
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Retaining walls and screens
Different types of retaining structures
Bibliography
Software tools
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TERRASOL 2014 TALREN, [Software]
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TERRASOL 2014 K-rea, [Software]
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GEOS 2014 Geostab, [Software]
Standards and norms
- AFNOR Eurocode 7 : Calcul géotechnique Partie 1 : règles générales. - NF EN 1997-1 AFNOR - 2005
- AFNOR Justification of geotechnical structures – Eurocode 7 national application standards – Retaining structures – Walls. - NF P 94-281 AFNOR - 2014
- AFNOR Geotechnical calculation – Retaining structures – screens. - NF P 94-282 AFNOR - 2009
- AFNOR Geotechnical calculation – Retaining structures...
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