Field Measurements and Corresponding Finite Element Analysis of Closure During Shaft Sinking at the Lucky Friday Mine

Details

• Personal Author:
  Conway, John P. ; Gooch, Aldon E.
• Description:
  The Bureau of Mines conducted research in an attempt to provide a more sound basis for recommending improved artificial support during deepening of the main shaft of the Lucky Friday Mine in the Coeur d'Alene Mining District of northern Idaho. Field measurements of closure across the short axis of the 13- by 26-foot shaft were as high as 16 inches. Elastic/plastic finite-element (f/e) analyses were made, reducing the values of large-scale in situ rock mass properties until field closure measurements generally corresponded to displacements in the f/e analyses. Resulting plots of rock mass displacements, stresses, and areas of plastic failure display the results of creating openings (shaft, in this case) in deep mines in difficult ground conditions requiring artificial support. [Description provided by NIOSH]
• Subjects:
  Engineering Mining Occupational Health Safety
• Keywords:
  Mining; Mining industry; Mine safety; Mine shafts; Safety research; Engineering; Structural analysis; Structural engineering; Mathematical models; Geotechnical engineering; Ground control; Ground stability; Rock mechanics
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Conference Publications ; Case Report
• Place as Subject:
  Idaho ; OSHA Region 10 ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  SRC - Spokane Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-19
• NIOSHTIC Number:
  nn:10000973
• NTIS Accession Number:
  PB-262738
• Citation:
  NTIS: PB 262 738, 1976; :1-19
• Federal Fiscal Year:
  1976
• Peer Reviewed:
  False
• Source Full Name:
  NTIS: PB 262 738
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:55a5f2f3f5415565efc84cf0aec92e8a2faa0ec409dec578f1145c443e2ae15ec3a0da158a3ef2408c50889f3a1cf2c8e58b0aeeec4df89a313a9ff4e7ede455
• Download URL:
  https://stacks.cdc.gov/view/cdc/237452/cdc_237452_DS1.pdf
• File Type:
  [PDF - 1.71 MB ]