地震诱发滑坡形成机理与动态模型研究
Research on the formation mechanism of earthquake-induced landslides

根据福建某山区公路边坡滑坡情况，应用基于离散单元理论的颗粒流数值模拟程序，运用典型地震波，建立波在连续介质与离散介质中的传播等效关系，模拟地震作用下边坡离散介质的动力边界条件. 通过分析地震过程中边坡内部颗粒的位移、速度、应力以及边坡细观组构变化，如孔隙率、接触数、滑动比时程分布情况，探求地震诱发滑坡的形成机理.
Based on analysis of slope landslides on mountainous highways in Fujian Province，the typical seismic wave was used to establish wave propagation equivalent relationship in continuous medium and discrete medium，and the dynamic boundary conditions under the action of earthquake was simulated.The formation mechanism of earthquake-induced landslide was revealed by the analysis of displacement，velocity，stress，and porosity，particle contact number，sliding ratio of the slope versus time