Download or read book Explosion Effects on Mine Ventilation Stoppings written by Eric S. Weiss and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Explosion Effects on Mine Ventilation Stoppings written by Department of Health and Human Services and published by CreateSpace. This book was released on 2013-10 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Institute for Occupational Safety and Health (NIOSH) and the Mine Safety and Health Administration (MSHA) conducted joint research to evaluate explosion blast effects on typical U.S. mine ventilation stoppings in the NIOSH Pittsburgh Research Laboratory's (PRL) Lake Lynn Experimental Mine (LLEM). An innovative Australian-designed brattice stopping was also evaluated. After mine explosion accidents, MSHA conducts investigations to determine the cause(s) as a means to prevent future occurrences. As part of these postexplosion investigations, the condition of underground stoppings, including the debris from damaged stoppings, is documented as evidence of the approximate strength and the direction of the explosion forces. Permanent stoppings are used to control and direct the ventilation airflow through underground coal mines to dilute and render harmless methane, entrained coal dust, and other contaminants at the working face and other areas of the mine. 30 CFR 75.333 requires that permanent stoppings be built and maintained between intake and return air courses beginning at the third connecting crosscut outby the working face and to separate other air courses and direct air as specified. To perform the intended function and meet the requirements of 30 CFR 75.333, permanent stoppings are to be constructed in a traditionally accepted method and of materials that have been demonstrated to perform adequately or in a method and of materials that have been tested and shown to have a minimum strength equal to or greater than the traditionally accepted in-mine controls. A few examples of traditionally accepted [61 Fed. Reg. 9764 (1996)] stopping construction methods are as follows: (1) 8-in (20-cm) and 6-in (15-cm) concrete block (both hollow-core and solid) with mortared joints, (2) 8-in (20-cm) and 6-in (15-cm) concrete blocks, dry-stacked and coated on one or both sides with a strength-enhancing sealant suitable for dry-stacked stoppings, and (3) steel stoppings (minimum 20-gauge) with seams and perimeter sealed with a suitable mine sealant. Unlike mine ventilation seal structures that are commonly used to isolate unused sections of the mine, stoppings are not intended to withstand explosion overpressures. Unfortunately, mine explosions do occur. Depending on the location and severity, explosions can result in fatalities and injuries to underground mining personnel and cause considerable underground damage to equipment and structures. In the mine explosions in Alabama in 2001 and West Virginia in 2006, ventilation stoppings were destroyed. Mine Safety and Health Administration (MSHA) personnel conduct investigations into these types of explosion accidents to determine the root cause(s) as a means to prevent future occurrences. As part of postexplosion investigations, the location and condition of underground ventilation structures and debris are mapped. This information helps the investigators determine the strength and the direction of the forces of the explosion.
Download or read book Explosion Effects on Mine Ventilation Stoppings written by Eric S. Weiss and published by Createspace Independent Pub. This book was released on 2008-11-30 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Institute for Occupational Safety and Health (NIOSH) and the Mine Safety and Health Administration (MSHA) conducted joint research to evaluate explosion blast effects on typical U.S. mine ventilation stoppings in the NIOSH Pittsburgh Research Laboratory's (PRL) Lake Lynn Experimental Mine (LLEM). An innovative Australian-designed brattice stopping was also evaluated. NIOSH findings and recommendations are detailed.
Download or read book 11th US North American Mine Ventilation Symposium 2006 written by Jan M. Mutmansky and published by CRC Press. This book was released on 2006-05-18 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is the eleventh in a series which documents the technical papers of the mine ventilation symposium, which was initiated in 1982 by the Underground Ventilation Committee of the Society for Mining, Metallurgy, and Exploration, Inc. In more recent years, the event has expanded to include all of North America and is known as the US/North Am
Download or read book Mine ventilation Stoppings with Especial Reference to Coal Mines in Illinois written by Robert Young Williams and published by . This book was released on 1915 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Explosions in Underground Coal Mines written by Jianwei Cheng and published by Springer. This book was released on 2018-03-23 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the hazard of gas explosions in sealed underground coal mines, and how the risk of explosion can be assessed, modeled, and mitigated. With this text, coal mine operators and managers will be able to identify the risks that lead to underground mine gas explosions, and implement practical strategies to optimize mining safety for workers. In six chapters, the book offers a framework for understanding the sealed coal mine atmosphere, the safety characteristics that are currently in place, and the guidelines to be followed by engineers to improve upon these characteristics. The first part of the book describes the importance and characteristics of underground gas mine explosions in a historical context with data showing the high number of fatalities from explosion incidents, and how risk has been mitigated in the past. Chapters also detail mathematical models and explosibility diagrams for determining and understanding the risk factors involved in mine explosions. Readers will also learn about safety operations, and assessments for the sealed mine atmosphere. With descriptions of chapter case studies, mining engineers and researchers will learn how to apply safety measures in underground coal mines to improve mining atmospheres and save lives.
Download or read book Some Practical Aspects of Coal mine Ventilation written by United States. Bureau of Mines and published by . This book was released on 1951 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Explosion Resistant Seals Stoppings and Overcast for Ventilation Control in Underground Coal Mining written by Eric S. Weiss and published by Createspace Independent Pub. This book was released on 2002 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses the construction techniques, testing methods, and explosion test data collected for the pumpable cementitious seals; the seal, stopping, and overcast designs for the Australian program; and the Packsetter preloaded solid-concrete-block seal.
Download or read book The Principles and Practice of Mine Ventilation written by David Penman and published by . This book was released on 1927 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Explosion Hazard in Mining written by John Nagy and published by . This book was released on 1981 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coal dust Explosion Tests in the Experimental Mine 1913 1918 Inclusive written by George Samuel Rice and published by . This book was released on 1922 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Informational Report written by United States. Mine Safety and Health Administration and published by . This book was released on 1978 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Prevention of Mine Explosions written by Victor Watteyne and published by . This book was released on 1908 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concrete Stoppings in Coal Mines for Resisting Explosions written by George Samuel Rice and published by . This book was released on 1931 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extracting the Science written by Jürgen Brune and published by SME. This book was released on 2010 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: These research papers also cover a spectrum of innovative technical solutions, including computer-controlled mining equipment, remote monitoring of air quality, and virtual reality training systems.
Download or read book Explosions and Fires in Bituminous coal Mines written by United States. Bureau of Mines and published by . This book was released on 1946 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Explosions in Coal Mines written by W. N. Atkinson and published by . This book was released on 1886 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
