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- 2013376854 abstract "This report presents a new concept in perimeter control blasting for underground metal/nonmetal mine drifting applications focusing on the importance of the buffer holes in a blast design. The new blast design concept applies the understanding of radial damage that is caused by the buffer hole column charge. Buffer hole radial damage is defined by a practical damage limit applied to the rock lying between the buffer holes and the perimeter. A favorable comparison was made between five successful controlled blast designs and the concept of practical damage limit. This concept is easy to use and acceptance of the approach would only require mines to conduct trial blasts to test the design theory.".
- 2013376854 contributor B12788527.
- 2013376854 contributor B12788528.
- 2013376854 created "2013.".
- 2013376854 date "2013".
- 2013376854 date "2013.".
- 2013376854 dateCopyrighted "2013.".
- 2013376854 description "Abstract -- Introduction -- The practical damage radius -- Modified ash energy (MAE) approach -- Blast damage experiments -- Buffer hole design concept -- Analysis of successful perimeter control designs -- Conclusions -- Recommendations -- Acknowledgments -- References -- Project Bibliography -- Appendix A: Perimeter hole covolume wall pressure calculation method used for successful design examples".
- 2013376854 description "Includes bibliographical references (p. 55-60).".
- 2013376854 description "This report presents a new concept in perimeter control blasting for underground metal/nonmetal mine drifting applications focusing on the importance of the buffer holes in a blast design. The new blast design concept applies the understanding of radial damage that is caused by the buffer hole column charge. Buffer hole radial damage is defined by a practical damage limit applied to the rock lying between the buffer holes and the perimeter. A favorable comparison was made between five successful controlled blast designs and the concept of practical damage limit. This concept is easy to use and acceptance of the approach would only require mines to conduct trial blasts to test the design theory.".
- 2013376854 extent "67 p. :".
- 2013376854 hasFormat "Also available via the World Wide Web as an Acrobat .pdf file (3.45 MB, 79 p.).".
- 2013376854 identifier ri9691.pdf.
- 2013376854 isFormatOf "Also available via the World Wide Web as an Acrobat .pdf file (3.45 MB, 79 p.).".
- 2013376854 isPartOf "DHHS (NIOSH) publication ; no. 2013-129.".
- 2013376854 isPartOf "DHHS publication ; no. (NIOSH) 2013-129.".
- 2013376854 isPartOf "Report of investigations (National Institute for Occupational Safety and Health) ; 9691.".
- 2013376854 isPartOf "Report of investigations ; 9691".
- 2013376854 issued "2013".
- 2013376854 issued "2013.".
- 2013376854 language "eng".
- 2013376854 publisher "Pittsburgh, PA ; Spokane, WA: Deptartment of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Office of Mine Safety and Health Research,".
- 2013376854 relation "Also available via the World Wide Web as an Acrobat .pdf file (3.45 MB, 79 p.).".
- 2013376854 subject "Blasting.".
- 2013376854 subject "Explosives.".
- 2013376854 subject "T279 .N69 2013".
- 2013376854 tableOfContents "Abstract -- Introduction -- The practical damage radius -- Modified ash energy (MAE) approach -- Blast damage experiments -- Buffer hole design concept -- Analysis of successful perimeter control designs -- Conclusions -- Recommendations -- Acknowledgments -- References -- Project Bibliography -- Appendix A: Perimeter hole covolume wall pressure calculation method used for successful design examples".
- 2013376854 title "A new perimeter control blast design concept for underground metal/nonmetal drifting applications / Stephen R. Iverson, William A. Hustrulid, and Jeffrey C. Johnson.".
- 2013376854 type "text".