Seismic response of a single and a set of filled joints of viscoelastic deformational behaviour

Details Seismic response of a single and a set of filled joints of viscoelastic deformational behaviour Seismic response of a single and a set of filled joints of viscoelastic deformational behaviour

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011geoji.186.1315z&link_type=abstract

Geophysical Journal International, Volume 186, Issue 3, pp. 1315-1330.

Physics

1

Body Waves, Seismic Anisotropy, Seismic Attenuation, Wave Propagation, Rheology And Friction Of Fault Zones

Scientific paper

Rock joints are often filled with weak medium, for example, saturated clay or sand, of viscoelastic nature. Their effects on wave propagation can be modelled as displacement and stress discontinuity conditions. The viscoelastic behaviour of the filled joint can be described by either the Kelvin or the Maxwell models. The analytical solutions for wave propagation across a single joint are derived in this paper by accounting for the incident angle, the non-dimensional joint stiffness, the non-dimensional joint viscosity and the acoustic impedance ratio of the filled joint. It is shown that the viscoelastic behaviour results in dissipation of wave energy and frequency dependence of the reflection and transmission coefficients. Based on curve fitting of the experimental data of P-wave propagation across a single joint filled with saturated sand, both the Kelvin and Maxwell models are found to reproduce the behaviour of the filled joint, in terms of the amplitude and frequency contents. Then, wave transmission across a filled joint set is studied with the virtual wave source method and the scattering matrix method, where multiple wave reflections among joints are taken into account. It is shown that the non-dimensional joint spacing and the number of joints have significant effects on the transmission coefficients.

Affiliated with

Also associated with

No associations

Rating

Seismic response of a single and a set of filled joints of viscoelastic deformational behaviour does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Seismic response of a single and a set of filled joints of viscoelastic deformational behaviour, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seismic response of a single and a set of filled joints of viscoelastic deformational behaviour will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1401202