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针对跃洲水电站泄水闸闸基地质条件较差的问题,采用结构力学法分析了泄水闸的结构和抗滑稳定性,同时应用ANSYS结构分析软件建立了泄水闸三维有限元计算分析模型,模拟了混凝土材料的弹性及岩体材料的弹塑性,分析了不同工况下泄水闸结构的应力分布情况及抗滑稳定系数,并对比了两种方法的计算结果。结果表明,跃洲水电站泄水闸应力和抗滑稳定性均满足现行规范要求,且有限元计算结果更符合工程实际。
In view of the poor geological conditions of the sluice sluice gate foundation of Yuzhou Hydropower Station, the structure and anti-skid stability of the sluice gate are analyzed by the structural mechanics method. At the same time, a three-dimensional finite element analysis model of the sluice gate is established by ANSYS structural analysis software. The elasticity of concrete material and the elasto-plasticity of rock mass materials, the stress distribution of the sluice structure under different working conditions and the stability coefficient of anti-sliding are analyzed. The calculated results of the two methods are compared. The results show that the stress and sliding stability of the sluice gate of Yuzhou Hydropower Station meet the requirements of current codes and the results of FEM are more in line with the actual project.