Numerical validation of Multiplex Acceleration Model for earthquake induced landslides

作者：Zheng Lu^*; Chen Guangqi; Zen Kouki; Kasama Kiyonobu

来源：Geomechanics and Engineering, 2012, 4(1): 39-53.

DOI：10.12989/gae.2012.4.1.039

• long run-out landslides
• earthquake
• Multiplex Acceleration Model
• trampoline effect
• UDEC

Due to strong ground motion of earthquake, the material in the landslide can travel a significant distance from the source. A new landslide model called Multiplex Acceleration Model (MAM) has been proposed to interpret the mechanism of long run-out movement of this type of landslide, considering earthquake behaviors on slope and landslide materials. In previous study, this model was verified by a shaking table test. However, there is a scale limitation of shaking table test to investigate MAM in detail. Thus, numerical simulation was carried out in this study to validate MAM under full scale. A huge rock ejected and A truck threw upwards by seismic force during Wenchuan Earthquake (Ms. 8.0) was discussed based on the simulation results. The results indicate that collisions in P-phase of earthquake and trampoline effect are important behaviors to interpret the mechanism of long run-out and high velocity. The results show that MAM is acceptable and applicable.

• 出版日期2012-3