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为了求解带有交叉施工缝的大体积混凝土结构的应力分析问题，导出了能够反映不同类型施工缝传力特征的物理方程式，提出了以空间接触面单元为基础的“变增量搜索法”迭代方案。所提出的分析方案能够考虑接缝面上不同方向的抗剪能力，考虑缝隙随接缝位置、高程和荷载施加而变化的情况以及不同接缝间的相互影响。文中提供的两个算例表明，该分析方案能够正确有效地解决带交叉施工缝的大体积混凝土结构分析问题
In order to solve the stress analysis of mass concrete structures with cross joints, a physical equation that can reflect the transmission force characteristics of different types of construction joints is derived. An iterative “variable incremental search method” based on the spatial interface element is proposed Program. The proposed analytical solution can consider the shear resistance in different directions of the joint surface, consider the change of the gap with the joint position, elevation and load application and the interaction between different joints. The two examples provided in this paper show that the proposed scheme can correctly and effectively solve the problem of mass concrete structure analysis with cross joints