Ground Shock on Alluvial Geologies. Study of the Effect of Cementation Breakdown and Pore Air Phenomena.

Abstract

Cementation breakdown has been modeled and its influence on the single burst ground motion in a representative MX geology has been assessed. Its effect is confined to a late-time signal and even for the extreme models assumed it does not appear to be a significant factor in predicting peak values or frequency content. The pore-air effect has also been modeled and its influence in both the high explosive (HE) and nuclear multiple burst environments have been computed. For the high explosive case there is a low frequency motion that does appear to be associated with the pore-air effect. This motion would not be predicted by superposition. For the nuclear case, the pore-air effect is small enough that superposition does seem to be approximately satisfied. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1980
Accession Number
ADA092274

Entities

People

  • David Rubin
  • Ivan S. Sandler

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Blast Loads
  • Department Of Defense
  • Environment
  • Explosions
  • Explosives
  • Frequency
  • Ground Shock
  • Ground Zero
  • High Explosives
  • Materials
  • Materials Laboratories
  • Shear Strength
  • Shock
  • Standards
  • Surface Burst
  • Waterways

Readers

  • Explosive Engineering.
  • Fluid Mechanics and Fluid Dynamics.
  • Geotechnical Engineering.