有限元应力计算在某拱坝加高工程的应用

Application of Finite Element Stress Analysis to Arch Dam Heightening Project

拱坝加高的关键问题是加高后对坝踵处拉应力的影响以及新老坝体结合面完整性等,因此坝肩稳定、新老坝体的结合面和坝体应力是重要指标。本文以闽东水电站拱坝工程加高为例,根据拱坝的工作特点,采用有限元程序ANSYS对其进行了不同工况的坝体应力计算,根据计算结果进行分析,并提出一些建议。

The key problem existing in the project of heightening the arch dam is the influence of drawing stress of the dam on the dam heel and the integrity of the combination surface between the old and new dams, so the stability of dam abutment, combination surface of the old and new dams, and dam stress are important indexes. Taking the project of heightening the arch dam of Mingdong Hydropower Station as the example, and according to the working characteristics of the arch dam, the dam stress in different working states were calculated, some suggestions were put forward based on the result of calculation.