Geotechnical Modelling 0w ['jh|,
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David Muir Wood u-9t s
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April 2004 _;q-+"6L;
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Modelling forms an implicit part of all engineering design but many engineers J 3 x7i8
are not aware either of the fact that they are making assumptions as part of GnOo+hB
the modelling or of the nature and consequences of those assumptions. Many na3kHx@
engineers make use of numerical modelling but may not have stopped to think v,+l xY
about the approximations and assumptions that are implicit in that modelling| \z`d}\3( R
still less about the nature of the constitutive models that may have been invoked. h<K;VpL6
Many engineers are probably not aware of the possibilities and implications of b(q& }60
physical modelling either at single gravity or on a centrifuge at multiple gravities. BNCJT$t YX
I have worked for many years at the interface between research and industry J\so 8uT:
in developing numerical models of soil behaviour and in attempting to explain to sOxdq"E
practising engineers the possibilities of soil modelling. In particular, in 1996 and Kk9 8FI0]
1997 I held a Royal Society Industry Fellowship to be seconded to work within t60/f&A#7H
Babtie Group with both geotechnical and structural engineers and as a result ; 0! Wd
became more aware of the realities of the conditions within typical consulting \r%Vgne-g
engineering companies. This book was conceived during that secondment. The 9,5II0N L
scope of the book attempts to cover the range of guidance that I believe that VQ?H:1R
engineers who are undertaking geotechnical modelling need. I hope that they W{+0i AYnp
will ¯nd the approach accessible. (<C%5xk
Much of the material in this book has been developed during courses given to pt v 4v[gQ
¯nal year MEng and postgraduate students at Bristol University and elsewhere. (A'q@-XQ
The reader is assumed to have a familiarity with basic soil mechanics and with y+scJ+ <
traditional methods of geotechnical design. Some modest mathematical ability <e&QTyb
is expected: this is not intended to deter, but rather to indicate the nature of $cOD6X r)d
the theoretical understanding that is necessary if geotechnical modelling is to &{/>Sv!6#
be safely undertaken. qX'a&~s)n
My previous book Soil behaviour and critical state soil mechanics (Muir G
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Wood, 1990) used a particular constitutive model for soil behaviour, Cam clay, R{o*O_qX
as a vehicle for describing the mechanical behaviour of soils and of some simple I=%sDn
geotechnical structures. While Cam clay is presented brie°y in section x3.4.2, #@6L|$i X
this present book deliberately tries not to repeat too much of the material in r65 NKiQD
that earlier book: there is more description of simple alternative constitutive c2\vG
models and of the modelling of a range of geotechnical systems. The two books 3Gl]g/
should be seen as complementary. *Z`eNz}
I am grateful to the Royal Society for the Industry Fellowship and to Babtie otSPi7|k
Group for welcoming me into their midst: they may not have anticipated that `7%eA9*.m
this would have been the outcome. This book project has inevitably lingered g yQ9Z}
and I am grateful to Bristol University for giving me a University Research E@jl: -*E
Fellowship during academic year 2002-2003 in order to give me slightly more =(X'c.%i
time to work on the manuscript. The ¯nal surge to completion was greatly ,A!e"=HF
helped by a Visiting Professorship funded by the Foundation for the Promotion ,;P`Mf'YC
of Industrial Science which Kazuo Konagai arranged for me at the Institute b<(UmRxx3
of Industrial Science of the University of Tokyo. Osamu Kusakabe gave me \u _v7g
particular assistance in locating references at Tokyo Institute of Technology. W79A4l<
Jacques Garnier, Charles Ng and Sarah Springman were also generous with tN3 {7'\7
information and images. c '+r[rSn1
Erdin Ibraim and Adrian Russell provided some helpful suggestions for im- wmr%h q
provement. However, the rapid march to complete the manuscript|schnell zum 'B5J.Xe:
Schlu¼|will surely have left errors for which I apologise and accept full respon- {}o>ne nx\
sibility. I can only hope that the irritation attendant on their discovery will be &&n O]p`
more than compensated by the educational bene¯t associated with the working - fx88
through to the correct results. &E &iaw!
I am grateful to editorial sta® at E & FN Spon for their patience. /C"s_:m;3
I thank Helen for tolerating my obsessive work on a second book. \ui^
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David Muir Wood fF > qU-
Abbots Leigh WJU NJN
April 2004 m9 0R8 V
OPY/XKyY,
496 pages
