有限元数值分析在地下连续墙中的应用

为了研究高层建筑基坑施工中采用逆作法时建筑结构中地下连续墙的受力特性．文章结合工程实例，采用有限元分析软件ANSYS，重点对基坑施工中的地下连续墙进行了各种工况下的有限元数值分析，计算了地下连续墙的内力和位移．根据现有工程经验，用弹性地基杆系有限元法计算多支撑地下连续墙的内力，能反映墙体内力的变化，能满足工程设计要求．但由于影响墙体变形的因素复杂，会影响地下连续墙内力计算的准确性，根据经验对最终计算结果进行调整是十分必要的．

The application of FEM numerical analysis in underground continuous wall

In order to study the force characteristics of the underground continuous wall when applying reverse method in the high-rise building＇ s foundation construction, and provide a reference for real construction of project, combining practical application in construction, the finite element software ANSYS was used to make numerical analysis of underground continuous wall in the foundation construction under all work conditions, and the underground continuous wall＇ s internal force and the displacement were calculated. According to the experience in existing projects, the elastic foundation finite element method was used to calculate the internal forces of the multi-support underground continuous wall. This method can reflect the change of internal forces and meet the design requirements. However, due to the complex factors influencing the wall deformation, the method will affect the accuracy of calculation, so it is necessary to adjust the final results according to the experience.