Predictive Displacement Models Considering the Probability of Pulse-Like Ground Motions for Earthquake-Induced Landslides Hazard Assessment

Predictive displacement models (PDMs) based on the Newmark sliding block method have been widely applied in earthquake-induced landslide hazard assessment (ELHA). Pulse-like ground motions (PLGMs) can cause significant structural damage. In this study, four PDMs that consider the probability of occurrence of PLGMs (PP) were created for strike-slip and non-strike-slip events. The results demonstrate that the model with PP has greater accuracy in non-strike-slip events than the model without PP, however, the effect of PP may be disregarded in strike-slip events. This result is applicable to the ELHA and can provide a basis for post-earthquake emergency and geological disaster mitigation.

Automated summary

In this study, predictive displacement models (PDMs) based on the Newmark sliding block method were created, considering the probability of occurrence of pulse-like ground motions (PLGMs). The results showed that the model with PLGM probability had higher accuracy in non-strike-slip events, while the effect of PLGM probability could be disregarded in strike-slip events. This study provides a basis for earthquake-induced landslide hazard assessment (ELHA), as well as post-earthquake emergency and geological disaster mitigation.