Geotechnical Modelling /ar/4\b
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David Muir Wood Q{))+'s2h
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Modelling forms an implicit part of all engineering design but many engineers AXOR<Ns`
are not aware either of the fact that they are making assumptions as part of MI<XL n!*
the modelling or of the nature and consequences of those assumptions. Many q1O}dSPwX
engineers make use of numerical modelling but may not have stopped to think `h+1u`FJ
about the approximations and assumptions that are implicit in that modelling| VN[i;4o:|
still less about the nature of the constitutive models that may have been invoked. u, Rhm -`
Many engineers are probably not aware of the possibilities and implications of $v*0 \O
physical modelling either at single gravity or on a centrifuge at multiple gravities. Vo-]&u&cr
I have worked for many years at the interface between research and industry YTo^Q&
in developing numerical models of soil behaviour and in attempting to explain to 4}t&AW 4
practising engineers the possibilities of soil modelling. In particular, in 1996 and ; rJ
1997 I held a Royal Society Industry Fellowship to be seconded to work within i<]Y0 _?s
Babtie Group with both geotechnical and structural engineers and as a result 9X[}ik0
became more aware of the realities of the conditions within typical consulting #&jr9RB
engineering companies. This book was conceived during that secondment. The /naGn@m5u
scope of the book attempts to cover the range of guidance that I believe that 9'S~zG%{
engineers who are undertaking geotechnical modelling need. I hope that they 7IV:X
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will ¯nd the approach accessible. r" )zR,
Much of the material in this book has been developed during courses given to y9'F D5\s
¯nal year MEng and postgraduate students at Bristol University and elsewhere. 2xJT!lN
The reader is assumed to have a familiarity with basic soil mechanics and with i@|.1dWh
traditional methods of geotechnical design. Some modest mathematical ability ~!G&K`u
is expected: this is not intended to deter, but rather to indicate the nature of xgQ]#{ tG
the theoretical understanding that is necessary if geotechnical modelling is to $h|rd+},
be safely undertaken. | Sf` Cs
My previous book Soil behaviour and critical state soil mechanics (Muir xB&6f")
Wood, 1990) used a particular constitutive model for soil behaviour, Cam clay, ^FZ7) T
as a vehicle for describing the mechanical behaviour of soils and of some simple . wv!;
geotechnical structures. While Cam clay is presented brie°y in section x3.4.2, T.j&UEsd
this present book deliberately tries not to repeat too much of the material in 0Fi&7%
that earlier book: there is more description of simple alternative constitutive g0~3;y
models and of the modelling of a range of geotechnical systems. The two books D_MNF =7
should be seen as complementary. !s:v UY58
I am grateful to the Royal Society for the Industry Fellowship and to Babtie Vy:M K9U2
Group for welcoming me into their midst: they may not have anticipated that H%:u9DlEK/
this would have been the outcome. This book project has inevitably lingered c(y~,hN&p
and I am grateful to Bristol University for giving me a University Research <(<19t5 .
Fellowship during academic year 2002-2003 in order to give me slightly more <78LB/:
time to work on the manuscript. The ¯nal surge to completion was greatly 5NECb4FG
helped by a Visiting Professorship funded by the Foundation for the Promotion c?1 :='MC
of Industrial Science which Kazuo Konagai arranged for me at the Institute .1 =8c\%
of Industrial Science of the University of Tokyo. Osamu Kusakabe gave me x w%'R-
particular assistance in locating references at Tokyo Institute of Technology. b Al0z)p
Jacques Garnier, Charles Ng and Sarah Springman were also generous with %hqhi@q#
information and images. GP/G v
Erdin Ibraim and Adrian Russell provided some helpful suggestions for im- Z" !+p{u
provement. However, the rapid march to complete the manuscript|schnell zum Hxm CKW!
Schlu¼|will surely have left errors for which I apologise and accept full respon- 6 8v59)0U
sibility. I can only hope that the irritation attendant on their discovery will be YvP u%=eF
more than compensated by the educational bene¯t associated with the working c6NCy s
through to the correct results. [
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I am grateful to editorial sta® at E & FN Spon for their patience. raPUx _$PH
I thank Helen for tolerating my obsessive work on a second book. wcI4Y 0+J
David Muir Wood 9&t!U +
Abbots Leigh WP-'gC6K=
April 2004 ;"@FLq(n
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496 pages
