Title: Tunnel construction: State of the art and research needs
Subtitle: a report (Special report - Transportation Research Board, National Research Council ; 171)
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.
Subjects: Tunneling