Delayed blasting tests to improve highwall stability
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Delayed blasting tests to improve highwall stability a progress report by Virgil J. Stachura

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Published by U.S. Dept. of the Interior, Bureau of Mines in Pittsburgh, Pa .
Written in English

Subjects:

  • Blasting.,
  • Coal mines and mining -- Safety measures.

Book details:

Edition Notes

Bibliography: p. 21.

Statementby Virgil J. Stachura and Larry R. Fletcher.
SeriesBureau of Mines report of investigations ;, 8916, Report of investigations (United States. Bureau of Mines) ;, 8916.
ContributionsFletcher, Larry R.
Classifications
LC ClassificationsTN23 .U43 no. 8916, TN279 .U43 no. 8916
The Physical Object
Pagination24 p. :
Number of Pages24
ID Numbers
Open LibraryOL2998740M
LC Control Number84600214

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Delayed blasting tests to improve highwall stability: a progress report. Published Date: "The Bureau of Mines conducted a series of delayed blasting experiments at a West Virginia contour coal mine that resulted in smoother highwalls. The highwalls were smoother owing to reduced overbreak and inherently safer owing to reduced Author: Virgil J. Stachura, Larry R. Fletcher. Delayed blasting tests to improve highwall stability: a final report / (Pittsburgh, Pa.: U.S. Dept. of the Interior, Bureau of Mines, ), by Virgil J. Stachura, Michael A. Peltier, and Larry R. Fletcher (page images at HathiTrust). SURFACE MINE BLASTING Proceedings: Bureau of Mines Technology Transfer Seminar, Chicago, IL, Ap Compiled by Staff, Bureau of Mines ABSTRACT The Bureau of Mines has sponsored a comprehensive research program to enhance the safe, effective, and efficient use of blasting technology by the mining industry. Delayed blasting tests to improve highwall stability: a progress report. Personal Author: "The Bureau of Mines conducted a series of delayed blasting experiments at a West Virginia contour coal mine that resulted in smoother highwalls. One of the primary methods for analyzing roof stability in underground mines is the age-old method of Cited by: 3.

The analysis and alternative use of this by product can be very lucrative. Drilling is closely related to the rock mass and its properties, which might be extended to the sound produced during. Full text of "Surface mine blasting: proceedings" See other formats. Airblast and ground vibration generation and propagation from contour mine blasting [microform] / by Vi Delayed blasting tests to improve highwall stability [microform]: a progress report / by Virgil J. Stac Vibration monitoring as a tool for blast design [microform] / prepared by the Julius Kruttschnitt Minera. The use of high frequency and mine-wide microseismic systems to monitor the movement of blasting induced stresses Article in CIM Bulletin 93() May with 19 Reads How we measure.

(4) The highwall presents an immediate or potential safety hazard to persons working below the highwall, or to persons or property beyond the highwall, or to the public. (5) The amount of materials removed from the highwall in the stabilization operation is only that necessary to achieve stabilization. According to the results of a series of crater blasting tests in SMM, the parameters of L o = m, L e = m and Δ o = are obtained by fitting the test data. Then the E s = can be calculated by Eq. For the SCBM, the mass of a spherical cartridge is 54 kg. Put the parameters into by: 2. EPA/ October lO'^ Region Lil; Environmental Pro^ USER'S MANUAL FOR PREMINING PLANNING OF EASTERN SURFACE COAL MINING VOLUME 2 SURFACE MINE ENGINEERING by R. V. Ramani, C. J. Bise, C. Murray, L. W. Saperstein The Pennsylvania State University Department of Mineral Engineering University Park, Pennsylvania EPA Grant . Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them. 1 Study guide for the professional licensure of mining and mineral processing engineers: principles and practice of engineering (P.E.) examination.