Tunnel construction: State of the art and research needs 
Subtitle: a report (Special report - Transportation Research Board, National Research Council ; 171)
Publisher: National Academy of Sciences
Published: 1977
Language: eng
Format: Unknown Binding
Number of pages: 32
ISBN-13: 9780309025591
Subjects: Tunneling
Description: Reports are presented here on the state of the art in seventeen areas. The papers focus on aspects considered most important by specialists in the areas discussed, and make suggestions for research. It is suggested that most of the needed research effort in underground tunneling must be funded by public money.