Analytical study of s-wave propagation across saturated joints in rock masses

Jianbo Zhu, G. F. Zhao, X. B. Zhao, J. C. Li

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Joints are important mechanical and hydrological features of rock masses, and they can greatly affect wave propagation and attenuation across jointed rock masses. Joints often contain liquid, and the presence of liquid will change the mechanical behaviors of the joint. The saturated joint can be modeled as nonwelded interfaces. Stresses across the joint are continuous, but particle displacements and velocities are not. In this paper, with the recently introduced concept of VirtualWave Source (VWS) and analytical solution of reflection and transmission coefficients for harmonic plane S-wave across one saturated joint, normally incident S-wave propagation across one saturated joint set is studied. Parametric studies of S-wave propagation across one saturated joint set are performed. It is found that the magnitude of transmission coefficient across one saturated joint set is controlled by normalized shear joint stiffness, normalized joint viscosity, number of joints and nondimensional joint spacing. In addition, the waveforms of transmitted waves are discussed in detail in order to explain the phenomena above.
Original languageEnglish
Title of host publicationRock Mechanics in Civil and Environmental Engineering - Proceedings of the European Rock Mechanics Symposium, EUROCK 2010
Pages289-292
Number of pages4
Publication statusPublished - 1 Dec 2010
Externally publishedYes
EventEuropean Rock Mechanics Symposium, EUROCK 2010 - Lausanne, Switzerland
Duration: 15 Jun 201018 Jun 2010

Conference

ConferenceEuropean Rock Mechanics Symposium, EUROCK 2010
CountrySwitzerland
CityLausanne
Period15/06/1018/06/10

ASJC Scopus subject areas

  • Geology
  • Geotechnical Engineering and Engineering Geology

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