The views expressed in this book are the author’s own but he fyYv}z
acknowledges his debt to his many immediate colleagues in Halcrow and to +_Fsiu_b
so many tunnellers and others around the world for several of the thoughts }-V .upl
which have prompted the book. The author accepts full responsibility for Q'*-gg&)
any misunderstanding. The account may be criticised as unduly orientated Ny*M{}E
towards the British and European examples. This is justified by selecting wx}\0(]Gl
examples for which the circumstances are generally familiar; lessons learned (FH4\ 't)
may well have more universal application. The Channel Tunnel, for =(Mv@eA"
example, provides many examples of meritorious engineering with less F!|Z_6\tv:
meritorious management. An exemplary account of its engineering geology f3y_&I+zl
(Harris et al. 1996) attracts numerous references on account of its depth and HpDU:m
breadth.