利用FLAC^(3D)分析某边坡地震稳定性

STABILITY ANALYSIS OF SLOPE UNDER EARTHQUAKE WITH FLAC^(3D)

利用FLAC3D对某边坡进行了动力分析,讨论了利用FLAC3D进行边坡动力分析时如何设置边界条件、合成、输入以及转化动力时程,为地质体选取合理的阻尼。在此基础上,对该边坡进行了详细的动力分析。结果表明,在地震作用下,边坡会发生一定的永久位移,因此,工程上应慎重考虑。利用FLAC3D对边坡进行动力分析的文献较为鲜见,该方法为利用FLAC3D解决边坡动力问题提供了范例。

The stability analysis of slope under earthquake is made with FLAC3D. The problems about boundary conditions, dynamic time series, and rational damping for geological body are discussed. The study result shows that certain permanent displacement would occur in the potential slide mass of the slope under earthquake, and this must be taken into serious consideration in practical engineering.