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Characterization Of Gas Flow In Longwall Gobs
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Book Synopsis Characterization of Gas Flow in Longwall Gobs by :
Download or read book Characterization of Gas Flow in Longwall Gobs written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Institute for Occupational Safety and Health, Office for Mine Safety and Health Research, is investigating the geologic and mining factors influencing the migration of longwall gob gas. One goal of these studies is to optimize methane drainage strategies to reduce the volume of gob gas that reaches the underground workplace. As part of this research effort, longwall gob gas flow paths in a mine operating in the Pittsburgh Coalbed, PA, were investigated using SF6 tracer gas. Tracer gas released into the ventilation airflow underground generally stayed in the bleeder system and was vented at the associated bleeder fan shafts. Tracer gas injected into an inactive (intaking) gob gas venthole migrated to the two inby producing ventholes on the study panel, indicating that all three ventholes were in communication. The tracer gas that was injected into the gob generally stayed in the gob and only migrated to the ventilation system in response to the venthole on the study panel closest to the injection hole going off production. Tracer gas flow velocities in the longwall gob reservoir and factors influencing the production performance of gob gas ventholes in the study area are also discussed.
Book Synopsis Determining the Source of Longwall Gob Gas by : William P. Diamond
Download or read book Determining the Source of Longwall Gob Gas written by William P. Diamond and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four coreholes were drilled (two before and two after mining) at a longwall mine to obtain coal and rock samples from overlying strata to determine their gas content at various times in the mining cycle. Test results indicate that 91 pct of the gas removed from the overlying strata came from coalbeds.
Download or read book Mine Ventilation written by E. De Souza and published by CRC Press. This book was released on 2002-01-01 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume showcases all aspects of the science and engineering of mine ventilation and health and safety, with special focus on the applied aspects of mine ventilation practice. Papers span the spectrum of mine ventilation and air conditioning.
Book Synopsis Methane Control on Longwalls with Cross-measure Boreholes (Lower Kittanning Coalbed) by : Fred Garcia
Download or read book Methane Control on Longwalls with Cross-measure Boreholes (Lower Kittanning Coalbed) written by Fred Garcia and published by . This book was released on 1985 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis New Publications by : United States. Bureau of Mines
Download or read book New Publications written by United States. Bureau of Mines and published by . This book was released on 1987 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ventilation Analysis of a Longwall District in an Underground Coal Mine by : Daniel Jacques Brunner
Download or read book Ventilation Analysis of a Longwall District in an Underground Coal Mine written by Daniel Jacques Brunner and published by . This book was released on 1984 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of Investigations written by and published by . This book was released on 1992 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1984 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural Analysis of a Coal Mine Opening in Elastic Multilayered Material by : Fun-Den Wang
Download or read book Structural Analysis of a Coal Mine Opening in Elastic Multilayered Material written by Fun-Den Wang and published by . This book was released on 1974 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis List of Bureau of Mines Publications and Articles ... with Subject and Author Index by : United States. Bureau of Mines
Download or read book List of Bureau of Mines Publications and Articles ... with Subject and Author Index written by United States. Bureau of Mines and published by . This book was released on 1995 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis List of Bureau of Mines Publications and Articles,1994 by : United States. Bureau of Mines
Download or read book List of Bureau of Mines Publications and Articles,1994 written by United States. Bureau of Mines and published by . This book was released on 1995 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Coal and Rock Dynamic Disasters: Advances of Physical and Numerical Simulation in Monitoring, Early Warning, and Prevention - Volume II by : Jingjing Meng
Download or read book Coal and Rock Dynamic Disasters: Advances of Physical and Numerical Simulation in Monitoring, Early Warning, and Prevention - Volume II written by Jingjing Meng and published by Frontiers Media SA. This book was released on 2024-05-01 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Research Topic is Volume II of a series. The previous volume can be found here: Coal and Rock Dynamic Disasters: Advances of Physical and Numerical Simulation in Monitoring, Early Warning, and Prevention With the soaring growth of global population and socioeconomy, energy consumption and demand has been rapidly rising, and coal would still remain a fundamental energy source for a long time into the future. Seeking deep coal resources becomes an inevitable trend due to the depletion of shallow coal resources. Deep mining of coal resources promotes socioeconomic development, whereas bringing a variety of security challenges. In deep underground, there is a significant risk increase in coal and rock dynamic disasters (CRDDs), owing to the changes in physical and mechanical properties of coal and rock. In this regard, it is of great importance and necessity to prevent and control CRDDs effectively and efficiently.
Book Synopsis SME Mining Engineering Handbook, Third Edition by : Peter Darling
Download or read book SME Mining Engineering Handbook, Third Edition written by Peter Darling and published by SME. This book was released on 2011 with total page 1912 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third edition of the SME Mining Engineering Handbook reaffirms its international reputation as "the handbook of choice" for today's practicing mining engineer. It distills the body of knowledge that characterizes mining engineering as a disciplinary field and has subsequently helped to inspire and inform generations of mining professionals.Virtually all of the information is original content, representing the latest information from more than 250 internationally recognized mining industry experts. Within the handbook's 115 thought-provoking chapters are current topics relevant to today's mining professional: Analyzing how the mining and minerals industry will develop over the medium and long term--why such changes are inevitable, what this will mean in terms of challenges, and how they could be managed Explaining the mechanics associated with the multifaceted world of mine and mineral economics, from the decisions associated with how best to finance a single piece of high-value equipment to the long-term cash-flow issues associated with mine planning at a mature operation Describing the recent and ongoing technical initiatives and engineering developments in relation to robotics, automation, acid rock drainage, block caving optimization, or process dewatering methods Examining in detail the methods and equipment available to achieve efficient, predictable, and safe rock breaking, whether employing a tunnel boring machine for development work, mineral extraction using a mobile miner, or cast blasting at a surface coal operation Identifying the salient points that dictate which is the safest, most efficient, and most versatile extraction method to employ, as well as describing in detail how each alternative is engineered Discussing the impacts that social and environmental issues have on mining from the pre-exploration phase to end-of-mine issues and beyond, and how to manage these two increasingly important factors to the benefit of both the mining companies and other stakeholders
Book Synopsis Structural Design Considerations for Deep Mine Shafts by : Samuel S. M. Chan
Download or read book Structural Design Considerations for Deep Mine Shafts written by Samuel S. M. Chan and published by . This book was released on 1985 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comparisons Between Cross-measure Boreholes and Surface Gob Holes by : Tobias W. Goodman
Download or read book Comparisons Between Cross-measure Boreholes and Surface Gob Holes written by Tobias W. Goodman and published by . This book was released on 1986 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fluid Flow in Fractured Porous Media by : Yujing Jiang
Download or read book Fluid Flow in Fractured Porous Media written by Yujing Jiang and published by MDPI. This book was released on 2019-09-30 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fluid flow in fracture porous media plays a significant role in the assessment of deep underground reservoirs, such as through CO2 sequestration, enhanced oil recovery, and geothermal energy development. Many methods have been employed—from laboratory experimentation to theoretical analysis and numerical simulations—and allowed for many useful conclusions. This Special Issue aims to report on the current advances related to this topic. This collection of 58 papers represents a wide variety of topics, including on granite permeability investigation, grouting, coal mining, roadway, and concrete, to name but a few. We sincerely hope that the papers published in this Special Issue will be an invaluable resource for our readers.
Book Synopsis List of Bureau of Mines Publications and Articles ... with Subject and Author Index by : United States. Bureau of Mines. Branch of Editorial Services
Download or read book List of Bureau of Mines Publications and Articles ... with Subject and Author Index written by United States. Bureau of Mines. Branch of Editorial Services and published by . This book was released on 1985 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
