Project Pre-GONDOLA

Released on by Maurice K. Kurtz (Jr.)
preview-18

  • Project Pre-GONDOLA Book Detail

  • Author : Maurice K. Kurtz (Jr.)
  • Release Date : 1968
  • Publisher :
  • Genre : Nuclear excavation
  • Pages : 84
  • ISBN 13 :
  • File Size : 45,45 MB
DOWNLOAD BOOK

Project Pre-GONDOLA by Maurice K. Kurtz (Jr.) PDF Summary

Book Description: Measurements of intermediate range ground motions and of structural response were made during the Pre-Gondola high explosive cratering experiments at Fort Peck, Montana. Liquid nitromethane charges (1000-lb and 20-ton), emplaced at various depths of burst, and a 140-ton row charge were detonated in the Bearpaw shale, which is a weak, wet clay-shale medium. An additional experiment to validate a charge emplacement concept designed to decouple seismic energy proved inconclusive. All seismic measurements were of particle velocity. Using an inverse power law equation to describe the attenuation of seismic amplitudes with distance, it is found that the amplitudes from the single charges decayed as approximately R( -2.4), and amplitudes from the row-charge decayed as R( -1.7). A dependence of amplitudes on depth of burst exists, and a yield scaling exponent near 0.8 appears to be appropriate. It is suggested that a variation of particle velocity with distance as R( -A)e( -kfR), where f is the signal frequency, is a more physically realistic description of attenuation than is the inverse power law. The preliminary data from the 140-ton row charge appear to fit this type of attenuation law, and indicate that A = 0.5 and k = 0.015 sec/km. An estimate is made of the near-source variation of peak seismic amplitude with frequency for the row charge, and predictions are made for possible future row-charge cratering experiments at the site.

Disclaimer: www.yourbookbest.com does not own Project Pre-GONDOLA books pdf, neither created or scanned. We just provide the link that is already available on the internet, public domain and in Google Drive. If any way it violates the law or has any issues, then kindly mail us via contact us page to request the removal of the link.

Project Pre-GONDOLA

Project Pre-GONDOLA

File Size : 10,10 MB
Total View : 4195 Views
DOWNLOAD

Measurements of intermediate range ground motions and of structural response were made during the Pre-Gondola high explosive cratering experiments at Fort Peck,

Project Pre-GONDOLA I

Project Pre-GONDOLA I

File Size : 60,60 MB
Total View : 1983 Views
DOWNLOAD

The report presents the results of preshot and postshot geologic and engineering properties investigations performed in conjunction with the Project Pre-Gondola

Project Pre-GONDALA

Project Pre-GONDALA

File Size : 76,76 MB
Total View : 5118 Views
DOWNLOAD

Ground motion records from seven high explosive cratering events in northeastern Montana were analyzed for peak velocity, power spectral density, and velocity s