基于ABAQUS的省道某公路边坡稳定性及参数敏感性分析

Analysis on Slope Stability and Parameter Sensitivity of a Provincial Highway Based on ABAQUS

文章以某省道公路为例,将有限元方法和强度折减方法相结合,首先研究了降水强度对边坡安全系数的影响,之后分析了不同坡高、坡角、内摩擦角及黏聚力下边坡安全系数的变化情况。研究表明:降水强度越大,安全系数下降越明显;边坡安全系数随高度的减小而升高,随内摩擦角的减小而降低;在相同的内摩擦角下,安全系数随坡角的减小而逐渐升高。

Taking a provincial highway as an example,combining the finite element method with the strength reduction method,this paper first studies the influence of precipitation intensity on the slope safety factor,and then analyzes the changes of slope safety factor under different slope heights,slope angles,internal friction angles and cohesion.The results show that with the increase of precipitation intensity,the safety factor decreases more obviously;the slope safety factor increases with the decrease of height and decreases with the decrease of the internal friction angle;under the same internal friction angle,the safety factor increases with the decrease of the slope angle.