摘要
爆破震动是影响边坡稳定性的一个重要因素之一。结合实际工程文章利用了拉格朗日有限差分法FLAC程序对爆破震动作用下某边坡进行了数值模拟。讨论了利用FLAC进行边坡动力分析时设置边界条件设置、动力时程的合成、输入以及转化,阻尼的合理选取。从位移场和速度场进行了详细的动力分析。获得该边坡爆破震动特征及位移场、振动速度场的变化规律。研究成果对保证边坡安全具有较好的指导作用。
Blasting vibration is one of the most important factors affecting slope stability. Based on actual engineering project, this paper uses the FDM software - FLAC to simulate the effects of blasting vibration on slope stability. The problems about boundary conditions, dynamic time series, and rational damping for the geological body are discussed. Through in - depth dynamical analysis of velocity and displacement, the paper shows the vibration characteristic of the slope and its displacement and velocity varying laws. The results present in this paper can be used to guide the productive practice to ensure slope stability.
出处
《工程地质学报》
CSCD
2008年第1期59-62,共4页
Journal of Engineering Geology
关键词
爆破震动
边坡稳定
FLAC
Blasting vibration, Slope stability, FLAC, Numerical simulation
