Technique of measuring initial deformation around an opening :analysis of two raise-bore tests

Author:	Waddell, Galen G.
Additional Authors:	Skinner, Eugene H., Crocker, Thomas J.
Year:	1971
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of Interior, Bureau of Mines,
SUDOC:	I 28.23:7505
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	7505
Subjects:	Tunneling
	Mining engineering
	Boring
Link:	https://hdl.handle.net/2027/mdp.39015078522045