Open-pit Mining and Milling Methods and Costs at the Yellow Aster Mine, Randsburg, Calif PDF Download
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Author: A. W. Frolli
Publisher:
ISBN:
Category : Gold mines and mining
Languages : en
Pages : 70
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Book Description
Author: A. W. Frolli
Publisher:
ISBN:
Category : Gold mines and mining
Languages : en
Pages : 70
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Book Description
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 532
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Book Description
Author:
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 70
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Book Description
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Mineral engineering
Languages : en
Pages : 838
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Author: Walter Richard Crane
Publisher:
ISBN:
Category : Mining engineering
Languages : en
Pages : 246
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Book Description
![Catalogue of the Public Documents of the [the Fifty-third] Congress [to the 76th Congress] and of All Departments of the Government of the United States PDF](https://books.google.com/books/content/images/frontcover/YUwLkyg9iq0C?fife=w80-h100)
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 2636
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Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 840
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Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 2868
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Author:
Publisher:
ISBN:
Category : Nuclear excavation
Languages : en
Pages : 180
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Book Description
Analogies between nuclear and conventional excavations are developed from a tabulation of data from 153 mine, quarry, roadway, and dam excavations. The following factors were used as the basis for tabulation of conventional excavation data: purpose, location, precipitation, temperature, ground water level, lithology, mass strength, structural pattern, slope plan, slope profile, depth of excavation, slope height, average inclination, and stability. It was found that average slope inclination tends to be greatest for hard material and for material lacking a well-developed structure, and that inclination tends to de- crease with increasing slope height for excavated slopes reported to be stable. The authors conclude that good analogies are to be found in shape, slope height, depth of excavation, and slope inclination. Loadings of waste material at the rim of some open pit mines may be analogous to ejecta on the lips of nuclear craters. Rubble zones found in some open pit mines may be analogous to the fallback zones of nuclear craters. Differences between preshot and postshot characteristics of cratered media must be appreciated in evaluating analogies between features of conventional excavations and preshot features of nuclear excavation sites. Brief descriptions of 21 selected excavations are presented in Appendix A. The results of this study serve as an aid to judgment of nuclear crater slope stability. Potential subjects for further study are identified.
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 846
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