Ground Vibrations from Tunnel Blasting in Granite–Cheyenne Mountain (Norad), Colo

Details

• Personal Author:
  Dick RA ; Fogelson DE ; Hendrickson AD ; Olson JJ
• Description:
  The Bureau of Mines recorded peak particle-velocity levels and vibration frequencies to determine the nature and intensity of ground vibrations for tunnel blast rounds at the NORAD complex, Colorado Springs, Colorado. Previous Bureau of Mines studies in quarries and underground mines had shown that scaling (dividing) the distance from the blast by the square root of the charge weight removed the effect of the various charge weights on vibration amplitudes. The analysis of variance tests performed on the NORAD vibration data, however, indicated that the cube rather than square root scaling exponent grouped the data more effectively. The empirical propagation equation V = 560 (d/w1/3)-2.04, Where V is the maximum peak particle velocity in inches per second, d is the distance from the blast in feet, and w is the zero-delay charge weight in pounds described the attenuation, with distance, of the particle velocities from the tunnel blasts in the Pikes Peak granite of the NORAD complex. [Description provided by NIOSH]
• Content Notes:
  in NTRL, no pdf
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Conference Publications ; Case Report
• Place as Subject:
  Colorado ; OSHA Region 8
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  TCRC - Twin Cities Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-25
• NIOSHTIC Number:
  nn:10008896
• NTIS Accession Number:
  PB211944
• Citation:
  NTIS: PB 211 944 :25 pages
• Federal Fiscal Year:
  1972
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:d95b19154b16a052f857483cdebcbc9ffcd3d3f165f9d26804f71eb9c01a4c01ed1e2eec1cf32e343d46a757b53476af4baa26114611def967a410b11e392056
• Download URL:
  https://stacks.cdc.gov/view/cdc/237543/cdc_237543_DS1.pdf
• File Type:
  [PDF - 1.42 MB ]