【摘要】 本文以南天山地区乌什县某典型公路顺倾岩质边坡为研究对象，在现场调研与岩石力学性质试验的基础上，基于拟静力法与数值模拟探究了在地震作用下坡高、坡率和岩层倾角对边坡变形特征与稳定性的影响。研究结果表明：在地震作用下，竖向位移小于水平位移且约占水平位移的63.34%，最大水平位移和竖向位移都集中于坡脚区域；当岩层倾角与坡面倾角接近时，位移都会出现明显增大且安全系数显著降低，边坡易发生顺层滑动；当岩层倾角超过坡角时，位移都会出现缓慢降低且安全系数有所回升，边坡变得更稳定；位移随着边坡高度的增加显著增大，安全系数明显降低。更多还原

【Abstract】 This paper takes a typical rock slope with an inclined profile on a highway in Ush County, South Tianshan Region as the research object. Based on on-site investigations and rock mechanics property tests, it uses the pseudo-static method and numerical simulation to explore the influence of slope height, slope gradient and rock layer inclination angle on the deformation characteristics and stability of the slope under the action of earthquakes. The results show that under seismic action, the vertical displacement is smaller than the horizontal displacement, accounting for approximately 63.34% of the horizontal displacement, with both the maximum horizontal and vertical displacements concentrated in the slope toe area. When the dip angle of the rock layer approaches the slope face inclination, displacements increase significantly and the safety factor decreases markedly, making the slope prone to bedding slip. When the dip angle of the rock layer exceeds the slope angle, displacements decrease gradually and the safety factor recovers somewhat, resulting in improved slope stability. Displacement increases significantly with slope height, while the safety factor decreases noticeably.更多还原