Stresses Induced Around Mine Development Workings by Undercutting and Caving, Climax Molybdenum Mining, Colorado (in Two Parts).
Author | : A. W. Deurbrouck |
Publisher | : |
Total Pages | : 594 |
Release | : 1965 |
Genre | : Assaying apparatus |
ISBN | : |
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Author | : A. W. Deurbrouck |
Publisher | : |
Total Pages | : 594 |
Release | : 1965 |
Genre | : Assaying apparatus |
ISBN | : |
Author | : Stephen Utter |
Publisher | : |
Total Pages | : 34 |
Release | : 1965 |
Genre | : Climax Mine (Colo.) |
ISBN | : |
Stresses induced by block-caving mining were estimated from in-place measurements of strain or deformation in rock and concrete around mine openings. The four types of gages used for measurements in the Climax Molybdenum mine during 1959-61 were Whittemore gage, Carlson strain meter,2 Valore strain cell, and Climax extensometer. Gage performance in the laboratory was evaluated by stressing instrumented rock and concrete specimens in a universal testing machine and by comparing measurements taken by the gages and a standard gage. Gage performance in the mine was evaluated by comparing measurements taken during an 18-month test. The Whittemore gage, Carlson strain meter, and the Climax extensometer proved suitable for the investigation; the Valore strain cell, effective in the laboratory tests, gave erratic measurements in the mine.
Author | : Robert L. Bolmer |
Publisher | : |
Total Pages | : 36 |
Release | : 1965 |
Genre | : Climax Mine (Colo.) |
ISBN | : |
Author | : Arthur R. Taylor |
Publisher | : |
Total Pages | : 684 |
Release | : 1965 |
Genre | : Beryllium compounds |
ISBN | : |
Author | : United States. Office of Emergency Planning |
Publisher | : |
Total Pages | : |
Release | : 1948 |
Genre | : Strategic materials |
ISBN | : |
Author | : United States. Office of Defense Mobilization |
Publisher | : |
Total Pages | : 914 |
Release | : 1961 |
Genre | : United States |
ISBN | : |
Author | : Eugene H. Skinner |
Publisher | : |
Total Pages | : 44 |
Release | : 1989 |
Genre | : Concrete mine supports |
ISBN | : |
Author | : Juel H. Stears |
Publisher | : |
Total Pages | : 576 |
Release | : 1965 |
Genre | : Mine roof bolting |
ISBN | : |