Highwall Mining

Highwall Mining

Author: John Loui Porathur

Publisher: CRC Press

Published: 2017-07-06

Total Pages: 324

ISBN-13: 1351694251

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This comprehensive technical book on highwall mining covers theory and practice coupled with practical examples and design aspects. It contains eight extensive chapters elaborating broad-spectrum functionalities of highwall mining and its operational aspects, covering world scenario, economic potential, methods of coal extraction, design methodology including empirical web pillar design, numerical modelling for stress analysis, safety factor for web pillars, panel and barrier design, small-and large-scale numerical modelling, multiple seam interaction and design, coal web pillar strength, equivalent width concept, laboratory testing, new web pillar strength formula, effect of weak bands in coal seam, slope stability, safety and ground monitoring, hazards and regulatory requirements, case examples, norms and guidelines for practice. It also summarizes the results of research carried out by the CSIR Central Institute of Mining and Fuel Research (CSIR-CIMFR), India and the Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia on the subject. The book will equip readers in understanding the complex, multiple seam scenarios for highwall mining, and its design for maximum coal recovery from any given site with better economics, which will aid the mining companies in extracting locked-up coal following the safety norms to avoid hazards and minimise instability issues. A large number of case studies is included to illustrate the application of numerical modelling for prior estimation and viability of highwall mining operations under varying geomining conditions. The book will be of interest to professionals and academics in the field of mining engineering specifically, but will also interest civil, geomechanical and geological engineers as well as rock mechanics professionals.


Old Dominion Industrial Commonwealth

Old Dominion Industrial Commonwealth

Author: Sean Patrick Adams

Publisher: Johns Hopkins University Press+ORM

Published: 2009-12-01

Total Pages: 449

ISBN-13: 1421400510

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A look at the role of state policies in North-South economic divergence and in American industrial development leading up to the Civil War. In 1796, famed engineer and architect Benjamin Henry Latrobe toured the coal fields outside Richmond, Virginia, declaring enthusiastically, “Such a mine of Wealth exists, I believe, nowhere else!” With its abundant and accessible deposits, growing industries, and network of rivers and ports, Virginia stood poised to serve as the center of the young nation’s coal trade. By the middle of the nineteenth century, however, Virginia’s leadership in the American coal industry had completely unraveled while Pennsylvania, at first slow to exploit its vast reserves of anthracite and bituminous coal, had become the country’s leading producer. Sean Patrick Adams compares the political economies of coal in Virginia and Pennsylvania from the late eighteenth century through the Civil War, examining the divergent paths these two states took in developing their ample coal reserves during a critical period of American industrialization. In both cases, Adams finds, state economic policies played a major role. Virginia’s failure to exploit the rich coal fields in the western part of the state can be traced to the legislature’s overriding concern to protect and promote the interests of the agrarian, slaveholding elite of eastern Virginia. Pennsylvania’s more factious legislature enthusiastically embraced a policy of economic growth that resulted in the construction of an extensive transportation network, a statewide geological survey, and support for private investment in its coal fields. Using coal as a barometer of economic change, Old Dominion, Industrial Commonwealth addresses longstanding questions about North-South economic divergence and the role of state government in American industrial development.


Bulletin

Bulletin

Author: United States. Bureau of Mines

Publisher:

Published: 1920

Total Pages: 1282

ISBN-13:

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