飞来峡水利枢纽土坝坝段应力应变稳定分析

Analysis on Stability in Stress and Deformation of Earth Dam of Feilaixia Multipurpose Project

对飞来峡水电站土坝坝段在完建工况、正常蓄水位、设计洪水位、校核洪水位等四种工况下的应力应变进行了非线性有限元分析计算,得出了大坝特征点的应力值和位移值。对坝体应力与变形的分布规律和大坝的工作状态进行了研究,结果表明大坝应力应变和稳定性满足安全要求,具有较大的安全裕度。

The elastic and elastoplastic finite element method has been adopted to analysis the stress and deformation of the earth dam of Feilaixia Multipurpose Project under no water level, normal flood level,design flood level and check flood level. The stress and deformation of these characteristic nodes and the position of the stress and deformation extremum have been obtained. Based on the analysis of the stress and deformation of the dam and the work station of the dam, the results show that the stress and deformation of the dam satisfied the safety,which provide important resources for the power station management and the decision-making of flood-prevention.