TY - JOUR
T1 - Applying modified discontinuous deformation analysis to assess the dynamic response of sites containing discontinuities
AU - Peng, Xinyan
AU - Yu, Pengcheng
AU - Zhang, Yingbin
AU - Chen, Guangqi
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (grant numbers 41672286 , 51408511 and 41761144080 ), Science & Technology Department of Sichuan Province (grant number 2017JQ0042 ), the China Scholarship Council (CSC) and the Japanese Government (MEXT) Scholarship Program. The financial supports are gratefully acknowledged. We also appreciate the editor and anonymous reviewers for their useful suggestions that greatly improved the manuscript.
Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/11/28
Y1 - 2018/11/28
N2 - The accurate consideration of seismic wave propagation through discontinuous media is crucial in rock engineering. Discontinuous deformation analysis (DDA), with the ability to study discontinuity behaviors, is modified by incorporating a seismic input method based on a viscous boundary and the free-field theory. After confirming the accuracy of the modified DDA using several verification examples, two practical applications, (1) the extreme ground motion during the 2008 Iwate–Miyagi earthquake, Japan, and (2) the Donghekou landslide induced by the 2008 Wenchuan earthquake, China, are simulated and reproduced by the modified DDA. The results show that seismic wave propagation through discontinuous media can be accurately simulated by the modified DDA. Further, the simulation results indicate that discontinuities are critical in the dynamic response of structures. Conclusively, the modified DDA provides an alternative approach for analyzing the dynamic response of sites containing discontinuities.
AB - The accurate consideration of seismic wave propagation through discontinuous media is crucial in rock engineering. Discontinuous deformation analysis (DDA), with the ability to study discontinuity behaviors, is modified by incorporating a seismic input method based on a viscous boundary and the free-field theory. After confirming the accuracy of the modified DDA using several verification examples, two practical applications, (1) the extreme ground motion during the 2008 Iwate–Miyagi earthquake, Japan, and (2) the Donghekou landslide induced by the 2008 Wenchuan earthquake, China, are simulated and reproduced by the modified DDA. The results show that seismic wave propagation through discontinuous media can be accurately simulated by the modified DDA. Further, the simulation results indicate that discontinuities are critical in the dynamic response of structures. Conclusively, the modified DDA provides an alternative approach for analyzing the dynamic response of sites containing discontinuities.
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U2 - 10.1016/j.enggeo.2018.10.011
DO - 10.1016/j.enggeo.2018.10.011
M3 - Article
AN - SCOPUS:85055275298
SN - 0013-7952
VL - 246
SP - 349
EP - 360
JO - Engineering Geology
JF - Engineering Geology
ER -