厅子塘水电站砌石拱坝结构三维有限元分析

根据浆砌石坝设计规范和混凝土拱坝设计规范,结合云南厅子塘水电站细石混凝土砌石双曲拱坝工程特点,采用三维有限元方法,对拱坝体在多种荷载组合的工况条件下的坝体应力和变形进行了研究。研究结果表明,砌石双曲拱坝坝体的应力及变形均符合有限元计算一般规律,坝体最大位移在允许范围内,坝体上游面应力偏大,但在进行有限元等效应力核算后,计算研究结果在规范允许范围内。

Three-dimensional Finite Element Analysis of Tingzitang Stone Masonry Arch Dam Structure

The 3D finite element method is used to study stress and deformation of the arch dam body under the working conditions for various load combinations based on the characteristics of the Tingzitang stone masonry double-curvature arch dam in Yunnan province according to the specifications for design of masonry dams and concrete arch dams.The study results indicate that both stress and deformation of the masonry double-curvature arch dam are consistent to the general laws of finite element calculation and the max.displacement of the dam body is within the allowed band,and that although the stress of the upstream side of the dam body is on the high side the calculation results still meet the requirement of the specification as verified by check of the equivalent stress using the finite element method.