Ground control tools in underground coal mining conveniences and precautions

Sekhar Bhattacharyya, M. G. Nelson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Coal bearing rocks are low in strength and have geological discontinuities and moisture sensitivity. Roof and rib falls have been a major cause of fatalities in underground coal mines. Mine engineers design ground control plans for regulatory approvals. A number of tools are available from the National Institute for Occupational Safety and Health to design and assess these plans. Quite often there is not enough geotechnical input information available and databases are used. The Appalachian coalfields have extensive scientific studies to provide reliable regional inputs. Coal mines in the western United States and Canada have different geological and geotechnical conditions, and less available data. Use of inappropriate inputs in the tools like Analysis of Retreat Mining Pillar Stability, Analysis of Longwall Pillar Stability, and Analysis of Roof Bolt Systems may result in unsafe designs or over conservative designs. The tools are convenient but thorough understanding of the inputs, calibration with local test results, and operating experience are important for effective designs. The current paper contains examples of difficulties faced during mine planning using the above tools.

Original languageEnglish (US)
Title of host publication2015 SME Annual Conference and Expo and CMA 117th National Western Mining Conference - Mining
Subtitle of host publicationNavigating the Global Waters
PublisherSociety for Mining, Metallurgy and Exploration
Pages514-516
Number of pages3
ISBN (Electronic)9781510801240
StatePublished - Jan 1 2015
Event2015 SME Annual Conference and Expo and CMA 117th National Western Mining Conference - Mining: Navigating the Global Waters - Denver, United States
Duration: Feb 15 2015Feb 18 2015

Publication series

Name2015 SME Annual Conference and Expo and CMA 117th National Western Mining Conference - Mining: Navigating the Global Waters

Other

Other2015 SME Annual Conference and Expo and CMA 117th National Western Mining Conference - Mining: Navigating the Global Waters
CountryUnited States
CityDenver
Period2/15/152/18/15

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Bhattacharyya, S., & Nelson, M. G. (2015). Ground control tools in underground coal mining conveniences and precautions. In 2015 SME Annual Conference and Expo and CMA 117th National Western Mining Conference - Mining: Navigating the Global Waters (pp. 514-516). (2015 SME Annual Conference and Expo and CMA 117th National Western Mining Conference - Mining: Navigating the Global Waters). Society for Mining, Metallurgy and Exploration.