Ground Support Design for Weak Rock Mass: Quantifying Time-Dependent Closure in Squeezing Ground

Details

• Personal Author:
  Barnard CK ; Benton DJ ; Pakalnis, Rimas T. ; Raffaldi MJ ; Sandbak L ; Warren SN
• Description:
  Mining in weak and highly fractured rock can result in hazardous mining conditions and poses challenges to designing appropriate ground support for the intended use of the excavation. Production levels and infrastructure often require different support strategies because of varying tolerance to time-dependent closure and squeezing ground conditions. This paper presents an empirically derived ground support design methodology that estimates squeeze rate as a function of W-RMR and ground support capacity. This information aids the engineer in designing ground support appropriate to rock mass conditions and intended excavation use, thereby increasing confidence in support design and improving safety in underground mines. [Description provided by NIOSH]
• Subjects:
  Engineering Mining Occupational Health Safety
• Keywords:
  Author Keywords: Mining Convergence Engineering Controls Geologic Formations Ground Control Ground Stability Ground Support Mining Industry Rock Mechanics Squeezing Ground Time Dependent Weak Rock Mass

  More +
• Series:
  Mining Publications
• ISBN:
  9780987638946
• Publisher:
  Australian Centre for Geomechanics
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  OSHA Region 10 ; OSHA Region 8 ; South Dakota ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  SMRD - Spokane Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  169-184
• NIOSHTIC Number:
  nn:20064555
• Citation:
  Ground Support 2019: Proceedings of the Ninth International Symposium on Ground Support in Mining and Underground Construction, October 23-25, 2019, Sudbury, Canada.Hadjigeorgiou J, Hudyma M eds. Perth: Australian Centre for Geomechanics, 2019 Oct; :169-184
• Editor(s):
  Hadjigeorgiou J; Hudyma M
• Federal Fiscal Year:
  2020
• Peer Reviewed:
  False
• Source Full Name:
  Ground Support 2019: Proceedings of the Ninth International Symposium on Ground Support in Mining and Underground Construction, October 23-25, 2019, Sudbury, Canada
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:c4324e557aab09a9457f3e6b42cbb3cd35bf6eecc4631922e4be1504e0d7fa2f31af4a4cd8208dbf77745313f4309a97d79d52f5746586baf9ba8d256746d37e
• Download URL:
  https://stacks.cdc.gov/view/cdc/215256/cdc_215256_DS1.pdf
• File Type:
  [PDF - 5.92 MB ]