The views expressed in this book are the author’s own but he zHyM@*Gf(
acknowledges his debt to his many immediate colleagues in Halcrow and to &6!x;RB
so many tunnellers and others around the world for several of the thoughts sqsBGFeG
which have prompted the book. The author accepts full responsibility for eM{+R^8
any misunderstanding. The account may be criticised as unduly orientated yQ h":"$k
towards the British and European examples. This is justified by selecting `Up3p24
examples for which the circumstances are generally familiar; lessons learned !x&/M*nBE
may well have more universal application. The Channel Tunnel, for X\uN:;?#W{
example, provides many examples of meritorious engineering with less IY+P Yad
meritorious management. An exemplary account of its engineering geology c!j$ -Ovm
(Harris et al. 1996) attracts numerous references on account of its depth and A5z5e#
,u
breadth.
