Download or read book Mine Safety The Wilberg Mine Incident written by United States. Congress. Senate. Committee on Labor and Human Resources and published by . This book was released on 1987 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: This committee focused on the causes and the lessons to be learned from the 1984 Wilberg mine fire in which 27 persons lost their lives.
Download or read book Improving Self Escape from Underground Coal Mines written by National Research Council and published by National Academies Press. This book was released on 2013-07-26 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal mine disasters in the United States are relatively rare events; many of the roughly 50,000 miners underground will never have to evacuate a mine in an emergency during their careers. However, for those that do, the consequences have the potential to be devastating. U.S. mine safety practices have received increased attention in recent years because of the highly publicized coal mine disasters in 2006 and 2010. Investigations have centered on understanding both how to prevent or mitigate emergencies and what capabilities are needed by miners to self-escape to a place of safety successfully. This report focuses on the latter - the preparations for self-escape. In the wake of 2006 disasters, the U.S. Congress passed the Mine Improvement and New Emergency Response Act of 2006 (MINER Act), which was designed to strengthen existing mine safety regulations and set forth new measures aimed at improving accident preparedness and emergency response in underground coal mines. Since that time, the efforts of the National Institute of Occupational Safety and Health (NIOSH) and the Mine Safety and Health Administration (MSHA) have contributed to safety improvements in the mining industry. However, the Upper Big Branch mine explosion in 2010 served as a reminder to remain ever vigilant on improving the prevention of mine disasters and preparations to help miners survive in the event of emergencies. This study was set in the context of human-systems integration (HSI), a systems approach that examines the interaction of people, tasks, and equipment and technology in the pursuit of a goal. It recognizes this interaction occurs within, and is influenced by, the broader environmental context. A key premise of human-systems integration is that much important information is lost when the various tasks within a system are considered individually or in isolation rather than in interaction with the whole system. Improving Self-Escape from Underground Coal Mines, the task of self-escape is part of the mine safety system.
Download or read book Coal Waste Impoundments written by National Research Council and published by National Academies Press. This book was released on 2002-02-07 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: On October 11, 2000, a breakthrough of Martin County Coal Corporation's coal waste impoundment released 250 million gallons of slurry in near Inez, Kentucky. The 72-acre surface impoundment for coal processing waste materials broke through into a nearby underground coal mine. Although the spill caused no loss of human life, environmental damage was significant, and local water supplies were disrupted. This incident prompted Congress to request the National Research Council to examine ways to reduce the potential for similar accidents in the future. This book covers the engineering practices and standards for coal waste impoundments and ways to evaluate, improve, and monitor them; the accuracy of mine maps and ways to improve surveying and mapping of mines; and alternative technologies for coal slurry disposal and utilization. The book contains advice for multiple audiences, including the Mine Safety and Health Administration, the Office of Surface Mining, and other federal agencies; state and local policymakers and regulators; the coal industry and its consultants; and scientists and engineers.
Download or read book The State of Mine Safety and Health written by United States. Congress. Senate. Committee on Health, Education, Labor, and Pensions and published by . This book was released on 2006 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Face Boss written by and published by Univ. of Tennessee Press. This book was released on with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Accident illness Investigations Procedures written by United States. Office of the Administrator, Coal Mine Safety and Health and published by . This book was released on 2000 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Explosion Pressure Design Criteria for New Seals in U S Coal Mines written by M. J. Sapko and published by . This book was released on 2007 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seals are barriers constructed in underground coal mines throughout the United States to isolate abandoned mining panels or groups of panels from the active workings. Historically, mining regulations required seals to withstand a 140-kPa (20-psig) explosion pressure. However, the Mine Improvement and New Emergency Response Act ("MINER Act") requires the Mine Safety and Health Administration (MSHA) to increase this design standard by the end of 2007. This report provides a sound scientific and engineering justification to recommend a three-tiered explosion pressure design criterion for new seals in coal mines in response to the MINER Act. Much of the information contained in this report also applies to existing seals. Engineers from the National Institute for Occupational Safety and Health (NIOSH) examined seal design criteria and practices used in the United States, Europe, and Australia and then classified seals into their various applications. Next, the engineers considered various kinds of explosive atmospheres that can accumulate within sealed areas and used thermodynamic calculations and simple gas explosion models to estimate worst-case explosion pressures that could impact seals. Three design pressure-time curves were developed for the dynamic structural analysis of new seals under the conditions in which those seals may be used: unmonitored seals where there is a possibility of methane-air detonation or high-pressure nonreactive shock waves and their reflections behind the seal; unmonitored seals with little likelihood of detonation or high-pressure nonreactive shock waves and their reflections; and monitored seals where the amount of potentially explosive methane-air is strictly limited and controlled. Figure I is a simple flowchart that illustrates the key decisions in choosing between the monitored or unmonitored seal design approaches and the three design pressure-time curves. For the first condition, an unmonitored seal with an explosion run-up length of more than 50 m (165 ft), the possibility of detonation or high-pressure nonreactive shock waves and their reflections exists. The recommended design pressure-time curve rises to 4.4 MPa (640 psig) and then falls to the 800-kPa (120-psig) constant volume (CV) explosion overpressure. For unmonitored seals with an explosion run-up length of less than 50 m (165 ft), the possibility of detonation or high-pressure nonreactive shock waves and their reflections is less likely. A less severe design pressure-time curve that simply rises to the 800-kPa (120-psig) CV explosion overpressure may be employed. For monitored seals, engineers can use a 345-kPa (50-psig) design pressure-time curve if monitoring can ensure that (1) the maximum length of explosive mix behind a seal does not exceed 5 m (16 ft) and (2) the volume of explosive mix does not exceed 40% of the total sealed volume. Use of this 345-kPa (50-psig) design pressure-time curve requires monitoring and active management of the sealed area atmosphere. These design pressure-time curves apply to new seal design and construction. NIOSH engineers used these design pressure-time curves along with the Wall Analysis Code (WAC) from the U.S. Army Corps of Engineers and a simple plug analysis to develop design charts for the minimum required seal thickness to withstand each of these explosion pressure-time curves. These design charts consider a range of practical construction materials used in the mining industry and specify a minimum seal thickness given a certain seal height. Results of these analyses show that resistance to even the 4.4-MPa (640-psig) design pressure time curve can be achieved using common seal construction materials at reasonable thickness, demonstrating the feasibility and practical applications of this report. Engineers can also use other structural analysis programs to analyze and design seals by using the appropriate design pressure-time curve for the structural load and a design safety factor of 2 or more. Finally, this report also provides criteria for monitoring the atmosphere behind seals. NIOSH will continue research efforts to improve underground coal mine sealing strategies and to prevent explosions in sealed areas of coal mines. In collaboration with the U.S. National Laboratories, NIOSH will further examine the dynamics of methane and coal dust explosions in mines and the dynamic response of seals to these explosion loads. This upcoming project seeks to better understand the detonation phenomena and simple techniques to protect seals from transient pressures. Additional work will include field measurements of the atmosphere within sealed areas. Successful implementation of the seal design criteria and the associated recommendations in this report for new seal design and construction should significantly reduce the risk of seal failure due to explosions in abandoned areas of underground coal mines.
Download or read book Reports of the Inspectors of Mines to Her Majesty s Secretary of State written by Great Britain. Home Office and published by . This book was released on 1910 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reports and Documents written by United States. Congress and published by . This book was released on with total page 2520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mines and Quarries Reports for the Liverpool and North Wales District no 7 written by and published by . This book was released on 1925 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mines and Quarries Reports for the Midland and Southern District no 8 written by Great Britain. Mines Department and published by . This book was released on 1925 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coal mine Fatalities written by and published by . This book was released on 1950 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annual summary published in December issue.
Download or read book OSAHRC Reports written by United States. Occupational Safety and Health Review Commission and published by . This book was released on 1974-12 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Human Engineering and Human Resources Management in Mining written by and published by . This book was released on 1987 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Register Index written by and published by . This book was released on 1977 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Register written by and published by . This book was released on 2012-04 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Register Annual Index written by and published by . This book was released on 1977 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:
