Download or read book Mining Practice and Methods at Inspiration Consolidated Copper Company Inspiration Arizona written by Alfred C. Stoddard and published by . This book was released on 1929 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin Arizona State Bureau of Mines written by University of Arizona. State Bureau of Mines and published by . This book was released on 1926 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Information Circular written by and published by . This book was released on 1928 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by and published by . This book was released on 1932 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shaft sinking Practices and Costs written by Eugene Delos Gardner and published by . This book was released on 1932 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Notes on Underground Transportation in Metal Mines written by C. F. Jackson and published by . This book was released on 1931 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Selected Rock Excavations as Related to Large Nuclear Craters written by and published by . This book was released on 1967 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Metal mining Practice written by Charles Freeman Jackson and published by . This book was released on 1939 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sampling and Estimation of Ore Deposits written by Charles Freeman Jackson and published by . This book was released on 1934 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin University of Arizona Bureau of Mines written by and published by . This book was released on 1939 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metal mine Accidents in the United States During the Calendar Year 1936 written by Daniel Harrington and published by . This book was released on 1939 with total page 1206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mineral Resources of the United States written by United States. Bureau of Mines and published by . This book was released on 1932 with total page 1112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalog of Books and Reports in the Bureau of Mines Technical Library Pittsburgh Pa written by United States. Bureau of Mines. Technical Library, Pittsburgh and published by . This book was released on 1968 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Milling Methods and Costs at the Northern Idaho Mills of the Bunker Hill and Sullivan Mining and Concentrating Co written by R. S. Handy and published by . This book was released on 1930 with total page 1292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mining Petroleum by Underground Methods written by Carl Ernest Reistle and published by . This book was released on 1932 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by United States. Bureau of Mines and published by . This book was released on 1935 with total page 1442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Minerals Yearbook written by and published by . This book was released on 1932 with total page 1114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
