Some Fundamental Issues and Verification of 3DEC in Modeling Wave Propagation in Jointed Rock Masses

Discontinuities in rock masses greatly influence stress wave transmission. Before performing numerical modeling on complicated cases, benchmarking modeling must be performed first to validate the numerical code through comparison with theoretical solutions or experiment results. The accuracy of numerical results generally increases with decreasing mesh size. However, with an extremely fine mesh size, substantial computational time will be consumed. 3D plane wave propagation across a single joint or a joint set can be treated equivalently to a corresponding 2D case, as shown both analytically and numerically. However, it should be noted that when the incident wave is not a plane wave or there are unparallel joints and joint sets, a 3D case cannot be equivalent to a 2D case.


Published in:
Rock Mechanics And Rock Engineering, 45, 5, 943-951
Year:
2012
Publisher:
Wien, Springer Verlag
ISSN:
0723-2632
Keywords:
Laboratories:




 Record created 2013-02-27, last modified 2018-03-17


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