Disturbed Soil Properties and Geotechnical Design, by
Andrew Schofield
Andrew Schofield
| New Geo Books |
Book Description (from Thomas Telford website):
“Andrew Schofield deserves to be regarded as one of the
geniuses of soil mechanics of the latter half of the 20th century”
Professor Mark F. Randolph, The University of Western Australia,
Perth
This book describes the developments leading to the Original
Cam Clay model, focusing on fundamentals of the shearing of
soil. The aim is to lay the groundwork of understanding that
should form the basis of geotechnical design, guiding engineers
towards the class of behaviour to be expected under different
combinations of effective stress and water content. In this book
there are a few equations, but simple ones; much greater
challenge rests in the arguments put forward regarding soil
behaviour and the intellectual effort needed to keep pace with
the author.
The book is divided into six chapters, which progress from the
simple planar sliding of soil towards plastic design in geotechnical
engineering. A modest ambition for the book might be to see the
words 'cohesion' and 'adhesion' excised from our soil mechanics
vocabulary, replacing them with, respectively, 'shear strength' at
a given water content and effective stress level and on the
rather rare occasions where it is appropriate, 'cementation'.
Once armed with the simple concept of wet and dry of the critical
state line, readers will fully understand whether a sample will
wish to contract or dilate, whether pore pressures generated
during undrained shearing will tend to the positive or negative,
and conditions where ductile plastic deformation might change to
brittleness and fracture. The ability of the model to quantify
these states is immediately appealing to modern readers, rather
than having to digest purely qualitative explanations.
Full of technical and personal insights, this is a rewarding book
that reinforces ideas described in some of the authors’ earlier
works. For the unconverted, it is an invitation to re-examine your
basic understanding of soil behaviour. For the converted it is a
call to ensure that our teaching and the vocabulary and
nomenclature we use in describing strength models for soil,
reflect accurately the underlying concepts.
Professor. A. N. Schofield, FRS, FREng, FICE
In 1993, on the joint nomination of the Presidents of ICE and the
Royal Society, the ICE Council awarded Andrew Schofield the
James Alfred Ewing Gold Medal for special meritorious
contributions to the science of engineering in the field of
research. He has also been awarded the US Army Distinguished
Civilian Service Award.
Contents
Preface
Introduction
Slip-plane properties
Interlocking, critical states (Cs) and liquefaction
Soil classification and strength
Limiting stress states and Cs
Plasticity and original cam-clay (Occ)
Geotechnical plastic design
“Andrew Schofield deserves to be regarded as one of the
geniuses of soil mechanics of the latter half of the 20th century”
Professor Mark F. Randolph, The University of Western Australia,
Perth
This book describes the developments leading to the Original
Cam Clay model, focusing on fundamentals of the shearing of
soil. The aim is to lay the groundwork of understanding that
should form the basis of geotechnical design, guiding engineers
towards the class of behaviour to be expected under different
combinations of effective stress and water content. In this book
there are a few equations, but simple ones; much greater
challenge rests in the arguments put forward regarding soil
behaviour and the intellectual effort needed to keep pace with
the author.
The book is divided into six chapters, which progress from the
simple planar sliding of soil towards plastic design in geotechnical
engineering. A modest ambition for the book might be to see the
words 'cohesion' and 'adhesion' excised from our soil mechanics
vocabulary, replacing them with, respectively, 'shear strength' at
a given water content and effective stress level and on the
rather rare occasions where it is appropriate, 'cementation'.
Once armed with the simple concept of wet and dry of the critical
state line, readers will fully understand whether a sample will
wish to contract or dilate, whether pore pressures generated
during undrained shearing will tend to the positive or negative,
and conditions where ductile plastic deformation might change to
brittleness and fracture. The ability of the model to quantify
these states is immediately appealing to modern readers, rather
than having to digest purely qualitative explanations.
Full of technical and personal insights, this is a rewarding book
that reinforces ideas described in some of the authors’ earlier
works. For the unconverted, it is an invitation to re-examine your
basic understanding of soil behaviour. For the converted it is a
call to ensure that our teaching and the vocabulary and
nomenclature we use in describing strength models for soil,
reflect accurately the underlying concepts.
Professor. A. N. Schofield, FRS, FREng, FICE
In 1993, on the joint nomination of the Presidents of ICE and the
Royal Society, the ICE Council awarded Andrew Schofield the
James Alfred Ewing Gold Medal for special meritorious
contributions to the science of engineering in the field of
research. He has also been awarded the US Army Distinguished
Civilian Service Award.
Contents
Preface
Introduction
Slip-plane properties
Interlocking, critical states (Cs) and liquefaction
Soil classification and strength
Limiting stress states and Cs
Plasticity and original cam-clay (Occ)
Geotechnical plastic design
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