OPERATION HARDPROJECT 1.8. GROUND MOTION PRODUCED BY NUCLEAR DETONATIONS

Abstract

The objective was to measure ground motion produced by nuclear explosions at Eniwetok Proving Ground (EPG) as it varied with input pressure level, depth, and yield, and to correlate the measurements with similar data obtained at Nevada Test Site (NTS). No conclusive results were ob tained on transient displacements. Maximum vertical surface displacements on Koa were 2.5 to 2 inches downward at 2,000-, 3,144-, and 3,950-foot ground ranges, in that order, with a possible 2.5-foot upward and 15-foot outward displacement at 2,000 feet due to crater lip formation. At 840-foot ground range on Cactus, maximum downward surface displacement was approxi mately 1 to 1.5 inches. Without suggesting that it be taken as a generalization, it appears that transient displacements on Cactus and Koa are a weak function of ground range (or pressure level), under conditions of outrunning ground motion and are independent of yield.

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Document Details

Document Type
Technical Report
Publication Date
May 03, 1962
Accession Number
AD0338641

Entities

People

  • F. M. Sauer
  • L. M. Swift
  • W. M. Wells

Organizations

  • SRI International

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Blast
  • Data Reduction
  • Distortion
  • Energy
  • Engineering
  • Explosions
  • Explosives
  • Materials Laboratories
  • Measurement
  • Military Research
  • Radiation
  • Recording Systems
  • Resonant Frequency
  • Three Dimensional
  • United States
  • Wave Propagation
  • Waveforms

Readers

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