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Shaft-sinking Practices and Costs

Shaft-sinking Practices and Costs PDF Author: Eugene Delos Gardner
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 124

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Shaft-sinking Practices and Costs

Shaft-sinking Practices and Costs PDF Author: Eugene Delos Gardner
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 124

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Sinking Practice and Costs at the Pim Shaft, St. Louis Smelting & Refining Works, National Lead Co., St. Francois, Mo

Sinking Practice and Costs at the Pim Shaft, St. Louis Smelting & Refining Works, National Lead Co., St. Francois, Mo PDF Author: Roy H. Poston
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 20

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Shaft-sinking Methods, Practices, and Costs of the Consolidation Coal Co. at Its No. 261 Mine, Caretta, McDowell County, W. Va

Shaft-sinking Methods, Practices, and Costs of the Consolidation Coal Co. at Its No. 261 Mine, Caretta, McDowell County, W. Va PDF Author: Laurence E. Kelley
Publisher:
ISBN:
Category : Mining engineering
Languages : en
Pages : 28

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Book Description

Methods and Costs of Shaft Sinking in the Coeur D'Alene District, Shoshone County, Idaho

Methods and Costs of Shaft Sinking in the Coeur D'Alene District, Shoshone County, Idaho PDF Author: John R. McWilliams
Publisher:
ISBN:
Category : Mine ventilation
Languages : en
Pages : 60

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Shaft-sinking Practices and Costs, by E. D. Gardner and J. Fred Johnson

Shaft-sinking Practices and Costs, by E. D. Gardner and J. Fred Johnson PDF Author: E. D. Gardner
Publisher:
ISBN:
Category :
Languages : en
Pages : 118

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Methods and Costs of Shaft Sinking, U.S. Atomic Energy Commission Project Gnome, Near Carlsbad, New Mexico

Methods and Costs of Shaft Sinking, U.S. Atomic Energy Commission Project Gnome, Near Carlsbad, New Mexico PDF Author: Merwin H. Howes
Publisher:
ISBN:
Category : Mine ventilation
Languages : en
Pages : 60

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Book Description
Gnome shaft, situated about 24 miles southeast of Carlsbad, N. Mex., was designed and sunk by the U.S. Atomic Energy Commission for conducting a peace-time experimental nuclear explosion in the thick salt beds of the Permian Salado formation. Excavation was started July 1, 1960, and completed July 26, 1961. The 10-foot diameter shaft, lined with concrete through the rock section, was sunk 1,216 feet. A drift was driven approximately 1,140 feet on the 1,200-foot level terminating in a shot chamber. On completion of 100 feet of shaft, by means of a truck-mounted crane, facilities were installed for conventional sinking. About 709 feet of rock and 506 feet of salt were encountered in the shaft. Salt beds at this place are reported to be over 1,200 feet thick. The overlying rock section varies greatly in composition and thickness of beds and contains a 28-foot bed of water-bearing dolomite. The aquifer was sealed to facilitate shaft sinking and to prevent water-seepage damage in the salt section of the shaft. Sealing was accomplished by grout injection through holes drilled into the aquifer and by grouting behind the concrete liner

Shaft-sinking Methods and Costs at the T.L. Shaft, Eureka Corp., Eureka, Nev

Shaft-sinking Methods and Costs at the T.L. Shaft, Eureka Corp., Eureka, Nev PDF Author: A. C. Johnson
Publisher:
ISBN:
Category : Shaft sinking
Languages : en
Pages : 34

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Shaft-sinking Methods and Costs, and Cost of Plant and Equipment at the Macassa Mine, Kirkland Lake, Ontario

Shaft-sinking Methods and Costs, and Cost of Plant and Equipment at the Macassa Mine, Kirkland Lake, Ontario PDF Author: G. A. Howes
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 16

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Book Description

Shaft-sinking Methods and Costs and Cost of Plant and Equipment at the Fad Shaft, Eureka Corp., Ltd., Eureka, Nev

Shaft-sinking Methods and Costs and Cost of Plant and Equipment at the Fad Shaft, Eureka Corp., Ltd., Eureka, Nev PDF Author: George W. Mitchell
Publisher:
ISBN:
Category : Mining engineering
Languages : en
Pages : 52

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Book Description

Shaft-sinking Methods, Practices, and Costs of the Consolidated Coal Co. at Its No.261 Mine, Caretta, Mcdowell County, West Virginia

Shaft-sinking Methods, Practices, and Costs of the Consolidated Coal Co. at Its No.261 Mine, Caretta, Mcdowell County, West Virginia PDF Author: United States. Bureau of Mines
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description