2:45 PM - 3:00 PM
[HDS06-07] Estimation of dynamic friction of the Akatani landslide based on the waveform inversion and numerical simulation
Based on the numerical simulation, dynamic coefficient of friction was well constrained as 0.3 and a rapid increase of the velocity and the associated drop of the coefficient of friction were observed right after the onset of sliding.
The friction law that controls landslide dynamics is velocity-weakening with sudden drop after the initiation of sliding, which accelerates the deep-seated landslide. The friction model calibrated here using seismic data helps to understand the dynamics of the landslide and provide the basic property of the shearing resistance of the slip plane.