Proceedings of the World Tunnelling Congress ’99, Oslo, Norway May 31- June 3 1999.

The 118 papers from 30 countries cover a wide range of aspects related to tunnelling and the use of the underground. Papers are grouped in two volumes, titled: ‘Investigations, planning and design/Underground space use/Support and lining of tunnels’; and ‘Communication tunnels/Miscellaneous including water tunnels/ Mechanised tunnelling’