Validating the ability of the discontinuous deformation analysis method to model normal P‐wave propagation across rock fractures |
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| Authors: | Wenjun Gong Yunsheng Wang Youjun Ning Yonghong Luo Yujie Wang |
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| Affiliation: | 1. School of Transportation Science and Engineering, Beihang University, Beijing, China;2. Department of Geotechnical Engineering, Chinese Institute of Water Resources and Hydropower, Beijing, China;3. State Key laboratory of Geohazard Prevention and Geoenvironmental Protection, Chengdu University of Technology, Chengdu, China;4. School of Manufacturing Science and Engineering, Southwest University of Science and Technology, Mianyang, China |
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| Abstract: | The effects of fractures on wave propagation problems are increasingly abstracting the attention of scholars and engineers in rock engineering field. This study aims to fully validate the ability of discontinuous deformation analysis (DDA) to model normal P‐wave propagation across rock fractures. The effects of a single fracture and multiple parallel fractures are all tested. The results indicate that DDA can accurately reflect the fracture effects, including the fractures stiffness, the fracture spacing and the fracture number, and the effects of incident wave frequency on one‐dimensional P‐wave propagation problems. Thus, DDA is able to deal well with normal incident P‐wave propagation problems. Copyright © 2017 John Wiley & Sons, Ltd. |
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| Keywords: | discontinuous deformation analysis P‐wave propagation fracture |
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