Tunnel boring machine performance and ground properties report of the initial 1 1/2 km of the North Wear Drive, Kielder Aqueduct - Morgan, J. M.; Barratt, D. A.; Hudson, J. A. (Crowthorne, [Eng.] Transport and Road Research Laboratory, 1979)
Includes bibliographical references.
Keywords: Drilling and boring machinery; Tunnels -- Great Britain