Geotechnical Modelling /_G^d1T1?L
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David Muir Wood 7VQk$im399
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Modelling forms an implicit part of all engineering design but many engineers N6BFs (
are not aware either of the fact that they are making assumptions as part of J~[ A8o
the modelling or of the nature and consequences of those assumptions. Many L3g}Z1<!$
engineers make use of numerical modelling but may not have stopped to think Tv{X$`%
about the approximations and assumptions that are implicit in that modelling| ekj@;6
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still less about the nature of the constitutive models that may have been invoked. a:(.{z?nM
Many engineers are probably not aware of the possibilities and implications of H,!3s<1
physical modelling either at single gravity or on a centrifuge at multiple gravities. szy^kj^2
I have worked for many years at the interface between research and industry b8@gv OB
in developing numerical models of soil behaviour and in attempting to explain to Iv5 agh%
practising engineers the possibilities of soil modelling. In particular, in 1996 and mnM!^[|z
1997 I held a Royal Society Industry Fellowship to be seconded to work within *[eh0$
Babtie Group with both geotechnical and structural engineers and as a result _XqD3?yH4
became more aware of the realities of the conditions within typical consulting _DK%- ,Spu
engineering companies. This book was conceived during that secondment. The f;;(Q-.
scope of the book attempts to cover the range of guidance that I believe that mzl %h[9iI
engineers who are undertaking geotechnical modelling need. I hope that they :>K=kZ=k
will ¯nd the approach accessible. _lE0_X|d
Much of the material in this book has been developed during courses given to $0MP*TFWa
¯nal year MEng and postgraduate students at Bristol University and elsewhere. dm&vLQVS
The reader is assumed to have a familiarity with basic soil mechanics and with ~#b&UR
traditional methods of geotechnical design. Some modest mathematical ability 62 biOea
is expected: this is not intended to deter, but rather to indicate the nature of P'4 jz&4
the theoretical understanding that is necessary if geotechnical modelling is to C?3?<FDL
be safely undertaken. V@xlm
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My previous book Soil behaviour and critical state soil mechanics (Muir X Y;cz
Wood, 1990) used a particular constitutive model for soil behaviour, Cam clay, PfI~`ke
as a vehicle for describing the mechanical behaviour of soils and of some simple 2Rp5 E^s
geotechnical structures. While Cam clay is presented brie°y in section x3.4.2, /k(KA [bS
this present book deliberately tries not to repeat too much of the material in uZ-yu|1
that earlier book: there is more description of simple alternative constitutive t9zF
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models and of the modelling of a range of geotechnical systems. The two books kR0d]"dr
should be seen as complementary. D:gskK+o6M
I am grateful to the Royal Society for the Industry Fellowship and to Babtie K)AJx"
Group for welcoming me into their midst: they may not have anticipated that S"Dw8_y7}
this would have been the outcome. This book project has inevitably lingered C> vp
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and I am grateful to Bristol University for giving me a University Research <XV\8Y+n
Fellowship during academic year 2002-2003 in order to give me slightly more + W ?
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time to work on the manuscript. The ¯nal surge to completion was greatly *k(>Qsb "
helped by a Visiting Professorship funded by the Foundation for the Promotion r N'')n/F
of Industrial Science which Kazuo Konagai arranged for me at the Institute "@ JSF
of Industrial Science of the University of Tokyo. Osamu Kusakabe gave me CmNd0S4v
particular assistance in locating references at Tokyo Institute of Technology. 'Zdjd]
Jacques Garnier, Charles Ng and Sarah Springman were also generous with xYJ|G=h&A
information and images. ?v gHu
Erdin Ibraim and Adrian Russell provided some helpful suggestions for im- gt9 {u"o
provement. However, the rapid march to complete the manuscript|schnell zum DJv;ed%x
Schlu¼|will surely have left errors for which I apologise and accept full respon- qe! \ oh
sibility. I can only hope that the irritation attendant on their discovery will be B!=JRf T
more than compensated by the educational bene¯t associated with the working y/ #{pyJ
through to the correct results. J0e ~s
I am grateful to editorial sta® at E & FN Spon for their patience. ,h'q}5
I thank Helen for tolerating my obsessive work on a second book. e)[>E\u _
David Muir Wood F;mK)Q-
Abbots Leigh ?2b*F Qe
April 2004
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496 pages
