Symposium rapid excavation 5 reports. - Symposium on Rapid Excavation Procedures (1970 Washington, D.C.) (Washington, D.C. Highway Research Board, Division of Engineering, National Research Council, 1970)
Papers sponsored by Committee on Soil and Rock Properties and presented at the 49th Annual Meeting of the Highway Research Board.
Includes bibliographical references.
Keywords: Excavation -- Congresses; Nuclear excavation -- Congresses; Tunneling -- Congresses