Propagation velocity of shockwaves and pressure waves in soil and rock

Details Propagation velocity of shockwaves and pressure waves in soil and rock Propagation velocity of shockwaves and pressure waves in soil and rock

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992georl..19..865m&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 19, no. 9, May 4, 1992, p. 865-868.

Physics

2

Elastic Waves, Propagation Velocity, Rock Mechanics, Shock Waves, Soil Mechanics, Overpressure, P Waves, Pressure Dependence, Seismic Waves

Scientific paper

A variable pressure wave propagation velocity is developed and analyzed in ground materials which may be characterized by an exponential density-pressure relationship. The peak overpressure dependence is minor in the low pressure range and the propagation velocity of the pressure wave is essentially a constant, in fact, it is the seismic P-wave propagation velocity. Pressure dependence becomes increasingly more significant at peak overpressures exceeding 1 kbar (10 exp 8 Pa). At very high pressure levels encountered only in shockwaves at and above 10 kbar (10 exp 9 Pa), the initial mechanical characteristics of the ground materials become less significant, and the propagation velocity depends primarily upon the peak overpressure.

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