Stresses and displacements induced in rock by tunnel boring machine props

Author:	Duvall, Wilbur I.
Additional Authors:	Blake, Wilson.
Year:	1968
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:7200
Series:	Report of investigations / Bureau of Mines ;
Report Number:	7200
Subjects:	Tunneling
	Boring machinery
	Strains and stresses
Link:	https://hdl.handle.net/2027/mdp.39015078537845