Near-Field Source Characterizations of Explosions.
Abstract
Work in three areas is summarized in this report. The first deals with the quantification of source burial depth effects as observed in the near-field. The interplay of source burial depth effects with other physical processes is discussed. Preliminary data analysis and synthetics are presented. The increase in P wave amplitude and decrease in Rayleigh wave amplitude with increasing source depth is completely modeled with linear models. The second area of work summarizes a set of forward calculational models attempting to include spall in equivalent elastic source models. The study concludes that energy involved in cylindrically symmetric spall can account for 50% of near source waveforms. Finally the subject of inverse studies of small scaled chemical explosions is presented. The utility of small scaled explosion experiments in determining equivalent elastic sources is shown. The resulting source from a 253 pound chemical explosion in alluvium illustrates the partition of the explosive energy into spherical and cylindrical components. Keywords include: Seismology, explosion sources, equivalent elastic sources, depth of burial, spall, elastic wave propagation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 20, 1984
- Accession Number
- ADA150741
Entities
People
- B. W. Stump
Organizations
- Southern Methodist University