A Case-Study of Roof Support Alternatives for Deep Cover Room-and-Pillar Retreat Mining Using In-Situ Monitoring and Numerical Modeling

Details

• Personal Author:
  Addis J ; Mohamed K ; Rashed G ; Sears M ; Wickline J
• Description:
  To better understand the load shedding and the stress transfer on coal pillars due to room-and- pillar retreat mining in deep cover panels, researchers from the National Institute for Occupational Safety and Health (NIOSH) conducted a monitoring field study. Two sites, at overburden depths of 1,000 ft (304.8 m) and 1,500 ft (457.3 m), were selected in a room-and-pillar mine operating in Southern West Virginia. The deformation and stress changes in the roof and two adjacent pillars at each site were monitored during the retreat mining process. The monitoring results and field observations were used to calibrate large-scale FLAC3D models for each site. The calibrated models were used to assess different sizes of roof bolts installed in deep cover areas. [Description provided by NIOSH]
• Subjects:
  Environmental Exposure Mining Occupational Health Preceptorship Risk Assessment Risk Factors Safety
• Keywords:
  Coal Mines Exposure Levels Field Study Miners Mining Industry Models Monitoring Systems Pillar Mechanics Risk Factors Roof Supports Roof Support Systems Room And Pillar Mining Underground Mines Worker Health Worker Safety

  More +
• Series:
  Mining Publications
• Publisher:
  Society for Mining, Metallurgy, and Exploration, Inc.
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  OSHA Region 3 ; Pennsylvania ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PMRD - Pittsburgh Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-8
• NIOSHTIC Number:
  nn:20059785
• Citation:
  2019 SME Annual Meeting, February 24-27, 2019, Denver, Colorado, preprint 19-076. Englewood, CO: Society for Mining, Metallurgy, and Exploration, Inc., 2019 Feb; :1-8
• Federal Fiscal Year:
  2019
• Peer Reviewed:
  False
• Source Full Name:
  2019 SME Annual Meeting, February 24-27, 2019, Denver, Colorado, preprint 19-076
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:0175430f765b53e7cd09d77c1153b95cbefb9deebf77d6d072473a4efb72f26c5e50a0d9f8f30c25e3b675ad24d19f73ceaf962420a68d02ea0dc3ef3b4d5f13
• Download URL:
  https://stacks.cdc.gov/view/cdc/215240/cdc_215240_DS1.pdf
• File Type:
  [PDF - 756.61 KB ]