Numerical simulation of roadbed slope under seismic action in permafrost regions  

作　　者：JingYu Liu JianKun Liu ZhongQin Su Li Liu Min Xie 

机构地区：[1]School of Civil Engineering,Beijing Jiaotong University

出　　处：《Research in Cold and Arid Regions》2013年第5期540-547,共8页寒旱区科学（英文版）

基　　金：National 973 Project of China (No.2012CB026104);National Natural Science Foundation of China (No.41171064)

摘　　要：The deformation and strength characteristics of roadbed slope under seismic loading in permafrost regions are simulated numerically. The seismic response of roadbed at different positions and inclinations of a slope section was analyzed. Results show that, roadbed slope damage is mainly led by lateral displacement, and the deformation gradually decreases with increasing depth; roadbed and foundation displacement and plastic strain increases with the magnitude of slope angle, hence the roadbed safety factor will be reduced.The deformation and strength characteristics of roadbed slope under seismic loading in permafrost regions are simulated numerically. The seismic response of roadbed at different positions and inclinations of a slope section was analyzed. Results show that, roadbed slope damage is mainly led by lateral displacement, and the deformation gradually decreases with increasing depth; roadbed and foundation displacement and plastic strain increases with the magnitude of slope angle, hence the roadbed safety factor will be reduced.

关 键 词：seismic response roadbed on slope safety factor 

分 类 号：U213.14[交通运输工程—道路与铁道工程]