锚索抗滑桩边坡的抗震稳定性分析研究

Seismic Stability Analysis and Research of Slope Reinforced with Anchor-Cable Anti-Skid Pile

采用有限元软件对某锚索抗滑桩加固的边坡进行了模拟,分别对地震前后边坡的稳定性、坡面位移以及抗滑桩的弯矩进行了分析,明确了锚索抗滑桩有利于提高边坡的稳定性;地震作用下边坡的稳定系数在0~3 s内下降最快,之后渐缓趋于稳定,且边坡的稳定性最低点并非地震加速度峰值点,存在一定的滞后性;锚索抗滑桩的坡面水平位移会在抗滑桩顶部出现拐点,抗滑桩桩身弯矩位于桩身6~11 m处。

Using the finite element software to simulate the slope reinforced with the anchor-cable antiskid pile,this paper analyzes the slope stability before and after the earthquake,slope surface displacement,and the bending moment of the anti-skid pile,and clarifies that the anchor-cable anti-skid pile can improve the stability of the slope.Under seismic action,the stability coefficient of the slope decreases the fastest within0-3 s and gradually tends to be stable;the lowest point of the slope stability is not the peak point of seismic acceleration,and there is certain hysteresis.The turning point of the slope surface horizontal displacement of the anchor-cable anti-skid pile would appear at the top of the anti-skid pile,and the bending moment of the anti-skid pile is located at 6-11 m of the pile body.