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Improvements in the three-component borehole deformation gage and overcoring techniques

Pillar failure analysis and in situ stress determinations at the Fletcher mine near Bunker, Mo.

Least squares calculation of horizontal stress from more than three diametral deformations in vertical boreholes

Published Year

• 1970-1979 (2)
• 1980-1989 (1)

Subject

• Boring (2)
• Core drilling (1)
• Gages (1)
• Least squares (1)
• Mining engineering (1)
• Pillaring (Mining) (1)
• Rock mechanics (1)
• Rock mechanics--Statistical methods (1)
• Strain gages (1)

Author

• Aggson, James R., (3) *
• Duvall, Wilbur I. (2)
• Bickel, David L., (1)
• Hooker, Verne E. (1)
• Horino, Frank G. (1)

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