DEM modeling of wave propagation through jointed rock mass

Jianbo Zhu

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

Abstract

Numerical study on wave transmission across jointed rock masses is performed with a DEM-based code UDEC. As the first step, the numerical results of wave transmission across rock joints are compared with analytical solutions and in-situ data. Good agreement among them validates the capability of UDEC in modeling wave propagation. Extensive parametric studies on wave transmission across jointed rock masses are subsequently conducted. It is found that joint mechanical and spatial parameters including joint normal and shear stiffnesses, nondimensional joint spacing, joint spacing ratio, joint intersecting angle, incident angle and number of joint sets together determine the wave transmission. However, compared with other parameters, joint normal stiffness, nondimensional joint spacing and joint intersecting angle have more significant effects. The physical reasons lying behind those phenomena are explained in detail.
Original languageEnglish
Title of host publicationRock Dynamics and Applications - State of the Art
Subtitle of host publicationProceedings of the 1st International Conference on Rock Dynamics and Applications, RocDyn-1 2013
Pages443-449
Number of pages7
Publication statusPublished - 10 Jun 2013
Externally publishedYes
Event1st International Conference on Rock Dynamics and Applications, RocDyn-1 2013 - Lausanne, Switzerland
Duration: 6 Jun 20138 Jun 2013

Conference

Conference1st International Conference on Rock Dynamics and Applications, RocDyn-1 2013
Country/TerritorySwitzerland
CityLausanne
Period6/06/138/06/13

ASJC Scopus subject areas

  • Geology

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