中文摘要：

结合某基坑实例，运用有限元模拟软件ABAQUS建立预应力锚杆复合土钉的有限元计算模型，数值模拟研究不同锚杆预应力影响下基坑支护的变形特点。

英文摘要：

In combination with a practical example of a foundation pit, the finite element simulation software ABAQUS was used to establish the finite element calcula- tion model of pre-stressed anchor and composite soil nailing wall, and the numerical simulation research was conducted for deformation characteristics of foundation pit supporting under influence of different anchor pre-stress.