Based on a typical prototype of a soil slope in engineering practice, a numerical model of a three-stage soil slope supported by the anchor frame structure was established by means of FLAC^3D code. The dynamic responses of three-stage soil slope and frame structure were studied by performing a series of bidirectional Wenchuan motions in terms of the failure mode of three-stage structure, the acceleration of soil slope, the displacement of frame structure, and the anchor stress of frame structure. The response accelerations in both horizontal and vertical directions are the most largely amplified at the slope top of each stage subjected to different shaking cases. The platforms among the stages reduce the amplification effect of response acceleration. The residual displacement of frame structure increases significantly as the intensity of shaking case increases. The frame structure at each stage presents a combined displacement mode consisting of a translation and a rotation around the vertex. The anchor stress of frame structure is mainly increased by the first intense pulse of Wenchuan seismic wave, and it is sensitive to the intensity of shaking case. The anchor stress of frame structure at the first stage is the most considerably enlarged by earthquake loading.

基于工程实践中典型的土质边坡原型，利用FLAC ^3D技术建立了锚框架结构支护的三阶段土坡数值模型。码。根据三级结构的破坏模式，土坡的加速度，框架结构的位移和锚固应力，通过进行一系列双向汶川运动，研究了三阶段土坡和框架结构的动力响应。框架结构。在水平和垂直方向上的响应加速度在经受不同振动情况的每个阶段的斜面上最大程度地放大。各阶段之间的平台降低了响应加速的放大效果。框架结构的残余位移随着振动情况的增加而显着增加。每个阶段的框架结构都提供了一个组合的位移模式，该位移模式包括围绕顶点的平移和旋转。框架结构的锚固应力主要由汶川地震波的第一个强脉冲增加，并且对震动情况的强度敏感。在地震荷载作用下，框架结构的第一阶段的锚固应力最大程度地增加了。