本文在模型实验基础上,采用有限元方法,对砂、软弱夹层和连续墙三种材料的组合结构进行了非线性分析。文中用滑动元来反映滑坡中滑床和滑体变形的情况。分析结果表明,这是一种有效的处理方法,能得到符合实际情况的满意结果。本文还分析了砂的剪胀对整个结构位移计算的影响。通过实验和分析,得出了滑坡中软弱夹层的变形性质对抗滑结构受力状态的影响规律。 Based on the model experiment, this paper uses the finite element method to analyze the nonlinear structure of sand, weak interlayer and continuous wall. The sliding element is used to reflect the deformation of the sliding bed and the sliding body in the landslide. The analysis results show that this is an effective treatment method, and it can obtain satisfactory results in line with actual conditions. This paper also analyzes the effect of dilatancy of sand on the calculation of the entire structure displacement. Through experiments and analysis, the law of the deformation properties of the weak sandwich in the landslide against the force state of the sliding structure is obtained.