The views expressed in this book are the author’s own but he c@L< Z` u
acknowledges his debt to his many immediate colleagues in Halcrow and to X 0+vXz{~g
so many tunnellers and others around the world for several of the thoughts [ub e6
which have prompted the book. The author accepts full responsibility for F*ylnB3z
any misunderstanding. The account may be criticised as unduly orientated KF:78C
towards the British and European examples. This is justified by selecting 8Z=R)asGS
examples for which the circumstances are generally familiar; lessons learned \:LW(&[!
may well have more universal application. The Channel Tunnel, for |M;7>'YNC*
example, provides many examples of meritorious engineering with less $6R-5oQ
meritorious management. An exemplary account of its engineering geology 7;@]t^d=$
(Harris et al. 1996) attracts numerous references on account of its depth and 5]:U9ts#
breadth.