本文以非饱和土抗剪强度理论为基础，引入了渗透力的概念，利用有限单元法进行了降雨条件下岩质边坡稳定性的分析。
The paper brings the conception of seepage force and use finite element method to analyze rock slope stability under rainfall, based on unsaturated earth drained shear strength theory.
基于有限单元法，建立了多组无缝道岔相联结时钢轨位移和纵向力的计算分析模型，编制了计算软件。
On the basis of finite element principle, a mechanical model is advanced for calculating the rail displacements and longitudinal forces of the welded turnout group. A computer program is designed.
该法将虚位移原理推广应用于有限单元的节点，从而得到用以描述局部电磁力分布的等效节点力。
The distribution of local magnetic force is described with an equivalent node force, which is derived from an extended application of virtual work principle to FEM node.
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