高填方边坡动力响应变形特征数值模拟分析

依托西部某高原机场工程案例，开展高填方边坡动力响应变形特征数值模拟分析。结果表明：边坡动力响应呈现坡顶最剧烈，坡脚次之，中部最弱，位移和加速度具明显的高程放大效应的特征，并与地下水工程效应密切相关；强震作用易引发填方边坡产生过大沉降、不均匀沉降及侧向变形会导致边坡开裂、隆起，甚至大规模滑移，影响边坡的稳定性。

Numerical Simulation Analysis of Dynamic Response Deformation Characteristics of High Backfill Slope

Based on a western plateau airport project as research object, numerical simulation analysis of the dynamic response deformation characteristics of high backfill slope has been carried out. The results show that the most severe dynamic response of the slope is at the top of the slope, followed by the foot of the slope, and the weakest is in the middle. The displacement and acceleration have obvious characteristics of elevation amplification effect and are closely related to the effect of groundwater engineering. Strong seismic action can easily cause excessive settlement, uneven settlement and lateral deformation of the fill slope, which can lead to slope cracking, uplift, and even large-scale slippage, which affects the stability of the slope.