Coal rib response during bench mining: A case study

Details

• Alternative Title:
  Int J Min Sci Technol
• Personal Author:
  Sears, Morgan M. ; Rusnak, John ; Van Dyke, Mark ; Rashed, Gamal ; Mohamed, Khaled ; Sloan, Michael
• Description:
  In 2016, room-and-pillar mining provided nearly 40% of underground coal production in the United States. Over the past decade, rib falls have resulted in 12 fatalities, representing 28% of the ground fall fatalities in U.S. underground coal mines. Nine of these 12 fatalities (75%) have occurred in room-and-pillar mines. The objective of this research is to study the geomechanics of bench room-and-pillar mining and the associated response of high pillar ribs at overburden depths greater than 300 m. This paper provides a definition of the bench technique, the pillar response due to loading, observational data for a case history, a calibrated numerical model of the observed rib response, and application of this calibrated model to a second site.
• Subjects:
  Article Bench Mining Deep Cover Retreat Mining Rib Response Rib Support Thick Seam
• Source:
  Int J Min Sci Technol. 28(1):107-113.
• Pubmed ID:
  29862125
• Pubmed Central ID:
  PMC5978751
• Document Type:
  Journal Article
• Funding:
  CC999999/Intramural CDC HHS/United States
• Volume:
  28
• Issue:
  1
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:dc99b533cf39fe9fb273b647297876d2a9c9bfc5282f2b050caf2f8843a622d9
• Download URL:
  https://stacks.cdc.gov/view/cdc/55667/cdc_55667_DS1.pdf
• File Type:
  [PDF - 1.86 MB ]