Rock stability analysis using acoustic spectroscopy
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

For very narrow results

When looking for a specific result

Best used for discovery & interchangable words

Recommended to be used in conjunction with other fields

Dates

to

Document Data
Library
People
Clear All
Clear All

For additional assistance using the Custom Query please check out our Help Page

CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners. As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
i

Rock stability analysis using acoustic spectroscopy

Filetype[PDF-1.23 MB]


English

Details:

  • Personal Author:
  • Corporate Authors:
  • Description:
    "This Bureau of Mines study examines the acoustic vibrational spectra of rock slabs in the range from 0 to 5,000 hz. The power spectra of so-called drummy rocks were found to be diagnostically enhanced in the range from 200 to 1,000 hz. Comparison of the power in this band with that in a band from 3,000 to 3,500 hz provides a quantitative measure of rock stability. A prototype field instrument was designed, constructed, and field tested. This battery-powered instrument computes the power contained in the two frequency bands mentioned, compares the magnitude of these two quantities, and displays a number that is related to the detachment of the block tested. Field tests show that this instrument is capable of giving reliable measurements of block stability under conditions of noise and dust that would seriously degrade the accuracy of normal sounding techniques." - NIOSHTIC-2

    NIOSHTIC no. 10004532

  • Subjects:
  • Series:
  • Subseries:
  • Document Type:
  • Genre:
  • Pages in Document:
    ii, 21 numbered pages
  • NIOSHTIC Number:
    10004532
  • Resource Number:
    RI 8950
  • Collection(s):
  • Main Document Checksum:
  • Download URL:
  • File Type:

Supporting Files

  • No Additional Files
More +

You May Also Like

Checkout today's featured content at stacks.cdc.gov