An equivalent viscoelastic model for rock mass with parallel joints

作者: Jianchun Li , Guowei Ma , Jian Zhao

DOI: 10.1029/2008JB006241

关键词:

摘要: An equivalent viscoelastic medium model is proposed for rock mass with parallel joints. A concept of "virtual wave source (VWS)'' to take into account the reflections between The can be effectively applied analyze longitudinal propagation through discontinuous media Parameters in are derived analytically based on across a single joint. then verified by applying identical incident waves and at one end compare output other end. When wavelength sufficiently long compared joint spacing, effect VWS prominent. results from very similar those determined displacement discontinuity method. Frequency dependence spacing method discussed.

参考文章(17)
D. S. Drumheller, A. Bedford, Introduction to elastic wave propagation ,(1994)
L.J. Pyrak-Nolte, N.G.W. Cook, L.R. Myer, SEISMIC VISIBILITY OF FRACTURES The 28th U.S. Symposium on Rock Mechanics (USRMS). ,(1987)
W. Maurice Ewing, Wenceslas S. Jardetzky, Frank Press, Elastic Waves in Layered Media Gff. ,vol. 80, pp. 128- 129 ,(1958) , 10.1080/11035895809447214
Michael Schoenberg, Elastic wave behavior across linear slip interfaces Journal of the Acoustical Society of America. ,vol. 68, pp. 1516- 1521 ,(1980) , 10.1121/1.385077
W. S. Jardetzky, F. Press, Arthur Beiser, W. M. Ewing, Elastic Waves In Layered Media ,(2011)
J. Zhao, X.B. Zhao, J.G. Cai, A further study of P-wave attenuation across parallel fractures with linear deformational behaviour International Journal of Rock Mechanics and Mining Sciences. ,vol. 43, pp. 776- 788 ,(2006) , 10.1016/J.IJRMMS.2005.12.007
J. Zhao, J. G. Cai, Transmission of elastic P-waves across single fractures with a nonlinear normal deformational behavior Rock Mechanics and Rock Engineering. ,vol. 34, pp. 3- 22 ,(2001) , 10.1007/S006030170023
N.G.W. Cook, Natural joints in rock: Mechanical, hydraulic and seismic behaviour and properties under normal stress International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts. ,vol. 29, pp. 198- 223 ,(1992) , 10.1016/0148-9062(92)93656-5