Page 18 - Numerical Analysis and Modelling in Geomechanics

Preface

This book describes numerical analysis, computer simulations and modelling
that can be used to answer some of the highly complex questions associated with
geomechanics. It then goes on to give an insight into the future direction of these
simulation methods.
In geomechanics, existing design methods are very much dependent upon
sophisticated on-site techniques to assess ground conditions. Obtaining this
practical information is expensive and time consuming. Increasingly, engineers
are looking to extending and increasing the accuracy of their design methods by
some form of computer simulation. Hence sophisticated numerical analysis and
modelling is being pushed to the limits to develop better design methods.
In the area of geomechanics, sophisticated sampling techniques can be used to
give impressive amounts of accurate ground and soil information, but only
within the initial assumptions and the sampling methods used. If the results of
the sampling techniques are accurate such that the material representations used
in the mathematical model is adequate, then the engineer is dependent upon the
computer simulation model to increase the reliability of the design methods
being used.
This book is aimed at the world market of professional engineers who are
involved in the designing and building of both onshore and offshore structures,
where geomechanical considerations may well be outside the usual codes of
practice and where expert advice, specialist advice and research is required.
This book is also a source book for postgraduate researchers and specialist
groups in geomechanics who need knowledge of the latest numerical modelling
and analysis techniques. This book will soon become a standard textbook for
final year degree students who are required to carry out advanced numerical
project work in geomechanics.
The topics covered in this book are:

• The effect of increasing the depth of an underground void on the surface
displacements of an airfield runway describes the effect of an underground
detonation on the soil between the void and the surface structure and shows
that there are ways of identifying the size, depth and location of the void.