Download or read book Effects of Various Longwall Chain Pillar Configurations on Gate Road Stability written by Jeffrey M. Listak and published by . This book was released on 1988 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Longwall Retreat of Gate Road Pillars written by Jeffrey M. Listak and published by . This book was released on 1993 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Longwall Gate Road Roof Instability and Methods of Control in the Lower Kittanning Coalbed of Central Pennsylvania written by Eric R. Bauer and published by . This book was released on 1992 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1992 with total page 1388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1992 with total page 1384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Mathematical Modeling of Spontaneous Heating of a Coalbed written by John C. Edwards and published by . This book was released on 1990 with total page 426 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 1990 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bureau of Mines Research written by United States. Bureau of Mines and published by . This book was released on 1991 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Abandoned Multiple Seam Workings on a Longwall in Virginia written by Gregory J. Chekan and published by . This book was released on 1989 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structural Stability and Oxidation Resistance of Substitute Alloys with Various Cr and Mn Levels written by Je Myung Oh and published by . This book was released on 1989 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beach Characteristics of Mine Waste Tailings written by Christine M. K. Boldt and published by . This book was released on 1988 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Information Circular written by and published by . This book was released on with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 1994 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Bureau of Mines Publications and Articles with Subject and Author Index written by United States. Bureau of Mines. Office of Public Information and published by . This book was released on 1985 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Longwall Mining 3rd Edition written by Syd S. Peng and published by CRC Press. This book was released on 2019-10-29 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past 13 years since the publication of Longwall Mining, 2nd edition in 2006, although there have been no major changes in longwall mining technology and operations, many incremental developments in the whole system as well as various subsystems of the existing longwall mining operational technologies as detailed in the 2nd edition have been added to this edition. Major developments are automation, and health and safety technology, as well as equipment reliability, thereby greatly increasing productivity and cutting cost. In particular, the longwall system can now run automatically cut by cut forever without operators' intervention provided that the geology allows it. Other health and safety features such as LASC, personal proximity detection, color lighting, automatic shield water sprays and remote shearer control are fully operational. There are more than 7000 sensors installed in current longwall mining systems. The big data obtained and fast communication technology have been fully utilized to improve and solve operational problems in real time. Those features are fully documented in the new edition. In pursuit of high productivity and cutting cost, life cycle management that increases equipment reliability has been implemented by OEM. Automation improvement such as tail-end automatic chain tensioner greatly extends AFC chain's service life. Other incremental improvements including dust and methane controls, entry development, panel design and face move are addressed. Additional operational issues such as extension of panel width and compatibility test are also discussed. Since the last plow longwall mine was closed in 2018, the chapter on plow longwalling has been dropped and in its place Automation of Longwall Components and System is added. Also, a new chapter Longwall Top Coal Caving Mining (LTCC) is added due to its successful application in Australia since 2005. Longwall Mining, 3rd edition will be of interest to professionals and academics in the field of mining engineering specifically, serving both as a reference work and an (under)graduate textbook, but will also interest civil, geomechanical and geological engineers and rock mechanics professionals, as well as coal operators, mining consultants, researchers, equipment manufacturers, and government regulators.
