DDA Simulations of Large Flume Tests and Large Landslides Triggered by the Wenchuan Earthquake ()
Qingqing Yang1,
Zhiman Su2,
Fei Cai3
1Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, China.
2Institute of Mountain Hazards and Environment, Chengdu, China.
3Department of Environmental and Engineering Science, Gunma University, Kiryu, Japan.
DOI: 10.4236/jamp.2014.26043
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Abstract
This paper presents some numerical
simulations using Discontinuous Deformation Analysis (DDA). First, DDA was
applied to reproduce a series of granular flows released in a large flume. The
comparison between simulated velocity and that measured in the tests
demonstrates the effectiveness of DDA on description of kinematic behavior of
blocky assembly. Simulated results were highly sensitive to the shape and
angularity of blocky elements. Employing unrealistic block might result in
different behavior from real situation. Second, three large landslides
triggered by the Wenchuan earthquake were simulated. A well agreement with
field data was obtained if apparent friction coefficient determined by
post-analysis was adopted.
Share and Cite:
Yang, Q. , Su, Z. and Cai, F. (2014) DDA Simulations of Large Flume Tests and Large Landslides Triggered by the Wenchuan Earthquake.
Journal of Applied Mathematics and Physics,
2, 359-364. doi:
10.4236/jamp.2014.26043.
Conflicts of Interest
The authors declare no conflicts of interest.
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