Effect of Binder Content on the Ductility of Cemented Hydraulic Backfill

Details

• Personal Author:
  Armatys M ; Bourgeois JP ; Emery TM ; Johnson W ; Seymour B ; Sweet DJ
• Description:
  The Spokane Mining Research Division (SMRD) of the National Institute for Occupational Safety and Health (NIOSH) has partnered with a narrow vein, hard rock underground mine to research the effects of the binder content on the elasticity and post-peak ductility of cemented hydraulic backfill (CHB). This is part of a larger study to enhance the long-term integrity of ground support in underground mines. As mining advances deeper and stresses increase, CHB mix designs will benefit if they can be modified to handle higher levels of strain which are induced by an increased stope closure, typically affected by a reduction in stope width and increased mining depth, or through dynamic loading resulting from a local seismic event. This portion of the research examined the impact of reductions in binder and their impact on Young's modulus, peak strength, and post-peak ductility. [Description provided by NIOSH]
• Subjects:
  Mining Occupational Health Risk Assessment Risk Factors Safety
• Keywords:
  Cements Fracking Ground Falls Ground Stability Hydraulic Fracturing Longwall Mining Mining Industry Risk Assessment Risk Factors Rock Mechanics Underground Mines

  More +
• Series:
  Mining Publications
• ISBN:
  9781713845089
• Publisher:
  Society for Mining, Metallurgy & Exploration (SME)
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  Colorado ; Idaho ; OSHA Region 10 ; OSHA Region 8 ; Utah ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  SMRD - Spokane Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• NIOSHTIC Number:
  nn:20065280
• Citation:
  MineXchange: 2022 SME Annual Conference and Expo, February 27-March 2, 2022, Salt Lake City, Utah, preprint 22-120. Englewood, CO: Society for Mining, Metallurgy & Exploration, 2022 Feb; :642-647
• Federal Fiscal Year:
  2022
• NORA Priority Area:
  Mining
• Peer Reviewed:
  False
• Source Full Name:
  MineXchange: 2022 SME Annual Conference and Expo, February 27-March 2, 2022, Salt Lake City, Utah, preprint 22-120
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:25a9f2ecdc4443c2e1254c188ebc0ae8551863c731192fb062b49753cb6953ea3e36924e61e7862794dc6ac371cb5b84e4a2f2cfac47eb9f1701765500de836f
• Download URL:
  https://stacks.cdc.gov/view/cdc/215504/cdc_215504_DS1.pdf
• File Type:
  [PDF - 494.81 KB ]