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DEM modeling of wave propagation through jointed rock mass

Zhu, J. B. (2013) DEM modeling of wave propagation through jointed rock mass. In: Rock dynamics and applications: state of the art. CRC Press , Leiden, Netherlands, pp. 443-449. ISBN 978-1-138-00056-8. https://resolver.caltech.edu/CaltechAUTHORS:20141106-131936327

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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.


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Additional Information:© 2013 Taylor & Francis Group. Prof. Jian Zhao, Dr. Xifei Deng and Dr. Xiaobao Zhao are acknowledged for helpful discussion, suggestion and assistant. Dr. Yingxin Zhou is acknowledged for sharing of field measured data.
Record Number:CaltechAUTHORS:20141106-131936327
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20141106-131936327
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:51375
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:06 Nov 2014 21:35
Last Modified:03 Oct 2019 07:32

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