Drystone Retaining Walls: Design, Construction and Assessment, 1st Edition (Hardback) book cover

Drystone Retaining Walls

Design, Construction and Assessment, 1st Edition

By Paul F. McCombie, Jean-Claude Morel, Denis Garnier

CRC Press

170 pages | 126 B/W Illus.

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pub: 2015-09-25
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Description

Take a Detailed Look at the Practice of Drystone Retaining Wall Construction

Drystone retaining walls make very efficient use of local materials, and sit comfortably in their environment. They make an important contribution to heritage and to the character of the landscape, and are loved by many people who value the skill and ingenuity that has gone into their construction, as well as simply how they look.

And yet, in engineering terms, they are complex. They can deform significantly as their loading changes and their constituent stones weather. This gives them ductility—they deal with changes by adapting to them. In some ways, they behave like conventional concrete retaining walls, but in many ways they are better. They cannot be designed or assessed correctly unless these differences are understood.

Implementing concepts that require no prior knowledge of civil engineering, the authors:

  • Explain the behavior of earth retaining structures
  • Provide a theoretical framework for modeling the mechanical stability of a drystone retaining wall
  • Outline reliable rules for constructing a drystone retaining wall
  • Include charts to support the preliminary sizing of drystone retaining walls
  • Examine the relevance of drystone in terms of sustainability
  • Describe more advanced methods of analysis

Drystone Retaining Walls: Design, Construction and Assessment draws on theoretical work and full-scale practical testing to explain how these structures work, without presuming that the reader has received an engineering education. The book goes on to give enough detail to give the professional engineer confidence in the methods used in design and assessment, and insight into what matters most in the way in which drystone retaining walls are built. It shows how to design new or replacement drystone retaining walls that are efficient, sustainable, attractive, and in keeping with the character of the area where they are built, and demonstrates how to make fair assessments of existing walls.

Reviews

"This book will offer practical advice to those responsible for transport networks which will include drystone retaining walls. It will greatly assist the understanding and future management and maintenance strategies for such structures."

—Richard Fish, Civil Engineering Consultant

Table of Contents

Introduction

Uses of drystone retaining walls

Construction styles

Sustainability

Summary

An introduction to the behaviour of simple earth retaining structures

The behaviour of soil

The fundamental requirements of a gravity retaining wall

Earth pressure calculations

Limit equilibrium analysis

Yield analysis

Summary

Behaviour of drystone retaining structures

Transmission of forces within a drystone wall

The effect of loading at the ground surface

The effect of the rough back face

Overturning behaviour

Wall deformations and their implications

Bulging

Tensile strength

Vertically orientated stones and bending resistance

Construction styles using rounded stones

The effects of a tightly constructed face

Summary

Analysis and design

Ensuring safety

The distinction between analysis and design

The distinct element method

Limit equilibrium analysis

Yield design analysis

Design charts

Summary of analytical methods

Construction

Building in drystone

Building a drystone retaining wall

Summary

Acknowledgements

Assessment

The scope and purposes of assessment

Methods of assessment – observation and interpretation

Summary

Design charts – to enable initial sizing

About the Authors

Author

Paul F. McCombie graduated with a BA in engineering from Cambridge University in 1981. He then worked for a consulting engineer and studied for an M.Sc in soil mechanics at Imperial College, London. After three years with Netlon Limited, in 1990 he moved to the University of Bath, where he served as director of studies for civil engineering and head of civil engineering. He has been deputy head of department since 2009. In 2010, he was awarded the Institution of Civil Engineers John Mitchell Medal for his research on dry stone retaining walls within the BRE Centre for Innovative Construction Materials (BRE CICM).

Jean-Claude Morel was director of research (equivalent to professor) at École Nationale des Travaux Publics de l’État (ENTPE) in France. He is now professor of low impact buildings at Coventry University. He gained his Ph.D in 1996 from the University Joseph Fourier of Grenoble. In 1998, following an invitation from the architect Patrick Cohen, he initiated a series of research projects on drystone walls, at first with Boris Villemus, and later with Denis Garnier, Anne-Sophie Colas, and then Eric Vincens. He has carried out major research work on low-impact building materials, including a series of testing campaigns on full-scale dry stone retaining structures, on which he has published extensively.

Denis Garnier gained his Ph.D in soil mechanics in the prestigious École Nationale des Ponts et Chaussées (Paris, France), where he is now senior lecturer and teaches the course on continuum mechanics. He is also professor at ENTPE (member of the University of Lyons, France), where he teaches the course of yield design analysis theories. He started his research in the team of Jean Salençon with Patrick de Buhan. He has carried out major research work on rock engineering and the stability modelling of drystone structures, mainly based on homogenization theories. He collaborates with Jean-Claude Morel of ENTPE in 3D modelling and full-scale experiments of dry stone masonries.

About the Series

Applied Geotechnics

Learn more…

Subject Categories

BISAC Subject Codes/Headings:
TEC005000
TECHNOLOGY & ENGINEERING / Construction / General
TEC009020
TECHNOLOGY & ENGINEERING / Civil / General
TEC063000
TECHNOLOGY & ENGINEERING / Structural