Report of Investigations 9108: Field Measurement of Rock Displacement During Sinking of a Deep Rectangular Shaft

Details

• Journal Article:
  MISSING
• Personal Author:
  Beus, Michael J. ; Whyatt, Jeffrey K.
• Description:
  The Bureau of Mines, under a cooperative agreement with Callahan Mining Corp., measured rock displacement at the 4,750-ft level of the 5,100-ft-deep rectangular, timbered caladay shaft in northern Idaho. Displacements were measured with multiple-position borehole extensometers installed 4 ft above the face and timber extensometers installed with the timber sets. This report presents the displacement data along with preliminary, qualitative observations of rock behavior. The measured displacements showed an instantaneous response to shaft sinking and significant time dependency. The relative magnitudes of displacement measured at the shaft walls were heavily influenced by local geologic structure and distance from the shaft bottom. [Description provided by NIOSH]
• Subjects:
  Mining Occupational Health Safety
• Source:
  MISSING :12 pages
• Series:
  NIOSH Numbered Publications   ; Mining Publications  
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  Idaho ; OSHA Region 10
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  SRC - Spokane Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  17 pdf pages
• NIOSHTIC Number:
  nn:10005852
• Federal Fiscal Year:
  1987
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:b48ae80dae2f7b7bf881dda00ba099079abf5cf4f303d9ff5823419890b70178f1525bd057d9af86461b22ac88a09f260dd185cd615726a032f2cb14e209ca03
• Download URL:
  https://stacks.cdc.gov/view/cdc/10494/cdc_10494_DS1.pdf
• File Type:
  [PDF - 746.73 KB ]