Report of Investigations 8969: Blast Vibration Measurements Near and On Structure Foundations

Details

• Personal Author:
  Siskind, David E. ; Stagg, Mark S.
• Corporate Authors:
  United States. Bureau of Mines
• Description:
  Blasting near structures often involves measurement of vibrations for the assessment of damage potential. Several methods of measurement are in use worldwide, but there is no consensus as to which methods are technically sufficient and yet practical for all situations. This Bureau of Mines study examined five methods of vibration transducer placement to determine the best method for monitoring blasting vibrations. The methods examined were burial in soil next to the structure; attachment to the foundation at ground level, to the basement floor, or to a surface slab; and burial at a distance from the structure in undisturbed soil. Typical surface mine production blasts were used as vibration sources. With the exception of the basement floor measurements and some of the distant measurements, waveforms were similar and amplitudes were generally within 10 to 30 pct. The low-frequency part of the wave (5 to 10 hz) was particularly uniform in measurements obtained by all five methods. Differences in peak values were mostly from the minor shifts in phase of the high-frequency components, which are of less significance to structural response and potential damage than the low-frequency waves (5 to 20 hz). Shallow surface burial resulted in good signal detection and least chance of mechanically induced error. [Description provided by NIOSH]
• Subjects:
  Mining Occupational Health Safety Vibration
• Keywords:
  Mining-industry Monitoring-systems Monitors Vibration-monitors
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• ISSN:
  1066-5552 (print)
• Publisher:
  United States. Bureau of Mines
• Document Type:
  Text
• Genre:
  Case Report
• Place as Subject:
  Minnesota ; OSHA Region 5
• Rights:
  Public Domain
• 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:
  28 pdf pages
• NIOSHTIC Number:
  nn:10004562
• NTIS Accession Number:
  PB86-106028
• Citation:
  Minneapolis, MN: U.S. Department of the Interior, Bureau of Mines, RI 8969, 1985 Jan; :1-20
• Federal Fiscal Year:
  1985
• Peer Reviewed:
  False
• Source Full Name:
  Minneapolis, MN: U.S. Department of the Interior, Bureau of Mines, RI 8969
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:108cfedbc6682065c992fcecb50cee7f47dae58867bf0111115b180bebf912a01601c9c37a6d41df2bdd2fc409ffc048126940f0bfbc4c7774c5c3709ed595f7
• Download URL:
  https://stacks.cdc.gov/view/cdc/201770/cdc_201770_DS1.pdf
• File Type:
  [PDF - 1.13 MB ]