Technique of measuring initial deformation around an opening; analysis of two raise-bore tests.  by Galen G. Waddell, Thomas J. Crocker, and Eugene H.Skinner.
Contributors: Crocker, T.J.; Skinner, E.H.
Publisher: U.S.  Dept. of the Interior
Place of publication: Washington
Language: eng
Number of pages: 60
Subjects: Tunneling; Boring; Mining engineering
Notes: 11