CAJ | 학술논문

A revised empirical model has been developed for predicting liquefaction-induced lateral spreading displacement (LD) as a function of both response spectral acceleration derived from strong-motion attenuation models and geotechnical parameters from Youd's LD data set (Youd website).This revised model is different from the model of Zhang and Zhao,which overcame some drawbacks of earlier models for predicting lateral spreading and was primarily used in Japan and the western U.S.The revised model can potentially be applied anywhere if ground shaking (in terms of 5％ damped acceleration or displacement response spectra) can be estimated using local strong-motion attenuation relationships.The revised model is examined using data from Japan and the western U.S.and applied to Turkey and New Zealand,where the ground shaking is estimated using appropriate strong-motion attenuation relationships for each region.The accuracy of the revised model is evaluated by comparing its predicted lateral displacements with those measured in actual earthquakes.The results show that the revised model can account for the effects of local seismicity on lateral spreading displacements and is comparable with existing prediction models.