基于地震反应谱的某RCC高拱坝应力及稳定分析

Stress and Stability Analysis of a RCC High Arch Dam Based on Seismic Response Spectrum

针对地震区域某RCC高拱坝,依据地震反应谱法和有限元计算原理,结合ANSYS分析软件,通过模拟地震荷载作用下的高拱坝运行工况,计算坝体的应力变形及岩体稳定情况。研究结果表明在地震荷载作用下拱坝坝体顺河向地震响应最为强烈,坝体整体应力值以及周围岩体的抗滑稳定安全系数值能够满足控制标准要求。

Aiming at a certain RCC high arch dam in the earthquake area,based on the seismic response spectrum method and the finite element calculation principle,combined with ANSYS analysis software,by simulating the operating conditions of high arch dams under seismic loads,the stress and deformation of the dam body and the stability of the rock mass are calculated.The research results show that the arch dam body has the strongest seismic response along the river under the action of seismic load,the overall stress value of the dam and the anti-sliding stability safety factor value of the surrounding rock mass can meet the requirements of the control standard.