Journal
GEOFLUIDS
Volume 2021, Issue -, Pages -Publisher
WILEY-HINDAWI
DOI: 10.1155/2021/9993693
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Funding
- National Key R&D Program of China [2018YFC1508501]
- National Natural Science Foundation of China [41831278, 51679071]
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This paper proposed a rate-dependent strain-softened micromechanical contact model and analyzed an earthquake-induced landslide as a case study using this model. The results show that the model can provide a reasonable solution to seismic-induced landslides.
An earthquake-induced landslide, mainly affected by seismic movement, is a frequent large-scale geological hazard in hydraulic engineering. This paper proposed a rate-dependent strain-softened micromechanical contact model and implemented it in discrete element method code, namely, PFC. Using the PFC-FLAC coupling scheme, the Hongshiyan earthquake landslide is analyzed as a case study. The influence of the strain rate, damping, and topographic effect is discussed. The results indicate that the rate-dependent micromechanical model can give a reasonable seismic-induced failure process compared with the in situ situation and provide a numerical technique for earthquake-induced landslide analysis and rockfall hazard prediction.
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