Stresses Induced Around Mine Development Workings by Undercutting and Caving, Climax Molybdenum Mining, Colorado (in Two Parts). PDF Download
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Author: A. W. Deurbrouck
Publisher:
ISBN:
Category : Assaying apparatus
Languages : en
Pages : 594
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Author: A. W. Deurbrouck
Publisher:
ISBN:
Category : Assaying apparatus
Languages : en
Pages : 594
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Author: Stephen Utter
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Category : Climax Mine (Colo.)
Languages : en
Pages : 34
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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:
ISBN:
Category : Climax Mine (Colo.)
Languages : en
Pages : 36
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Category : Mineral industries
Languages : en
Pages : 598
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Author: Arthur R. Taylor
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Category : Beryllium compounds
Languages : en
Pages : 684
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Category : Strategic materials
Languages : en
Pages : 376
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Author: United States. Office of Emergency Planning
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Category : Strategic materials
Languages : en
Pages :
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Author: United States. Office of Defense Mobilization
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Category : United States
Languages : en
Pages : 914
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Author: Eugene H. Skinner
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Category : Concrete mine supports
Languages : en
Pages : 44
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Author: Juel H. Stears
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Category : Mine roof bolting
Languages : en
Pages : 576
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