1887

Abstract

P041 WAVE VELOCITIES AMPLITUDE DEPENDENCE AND HYSTERESIS IN CONSOLIDATED ROCKS UNDER CONFINING PRESSURE Abstract 1 The laboratory experiments on duraluminium quartz sandstone under confining pressure (up to 40 MPa) have shown a nonlinear dependence of wave velocities Vp and Vs on amplitude and their hysteresis. In a range of strain amplitudes 10 -7 -10 -6 modifications of waves velocities achieve 0 84 %. The possible reason of non-linearity is the micro-plasticity. Introduction Linearly elastic model of a geological medium used in seismics not adequately describes a real situation of seismic wave propagation. Linearly inelastic model has the best approximation but

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/content/papers/10.3997/2214-4609-pdb.15.P041
2001-06-11
2020-09-22
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609-pdb.15.P041
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