Tunneling - the state of the industry
By: R. S. Mayo, J. E. Barrett and R. J. Jenny.
Contributors: Barrett, James E. 1934-; Jenny, R. J.; United States. Dept. of Transportation. Office of the Assistant Secretary for Systems Development and Technology.
Series: Report - Transportation Systems Center ; no. DOT-TSC-OST-76-29; DOT-TSC-OST -- 76-29.
Publisher: Dept. of Transportation, Office of the Secretary, Office of the Assistant Secretary for Systems Development and Technology; for sale by the National Technical Information Service
Published: 1976
Place of publication: Washington; Springfield, Va
Language: eng
Number of pages: 282
Subjects: Underground construction.; Tunneling.
Notes: Prepared by the Cresheim Co., under contract DOT-TSC-1091.

Final report; June 1976.