【摘要】 本文旨在利用无人机航测技术结合FLAC3D数值模拟软件，对攀西地区及及坪露天采场边坡进行地震动力稳定性分析。本研究采用无人机倾斜摄影测量技术获取高精度影像数据，利用Midas GTS-NX软件将航测数据转化为FLAC3D可识别的网格文件，并通过设置合理的参数，模拟边坡在地震作用下的动力响应。研究结果表明，地震作用对边坡稳定性有显著影响，地震前后边坡的安全系数分别为1.289和1.199;东帮边坡的滑移和沉降量较大，分别达到了62.50 mm和62.59 mm,且塑性区集中分布在边坡顶部和坡脚处，存在滑坡风险。因此，建议加强东帮边坡的日常监测与支护，以确保矿山的安全生产。更多还原

【Abstract】 The dynamic stability of slopes is a critical concern in mining engineering. This paper aims to analyze the seismic dynamic stability of the slopes at the Panzhihua-Xichang region’s open-pit mine using UAV aerial photogrammetry combined with FLAC3D numerical simulation software. High-precision image data was obtained using UAV oblique photogrammetry, and the Midas GTS-NX software was employed to convert the photogrammetric data into mesh files recognizable by FLAC3D. By setting appropriate model parameters, the dynamic response of the slope under seismic conditions was simulated. The results indicate that seismic activity significantly impacts slope stability, with safety factors of 1.289 before and 1.199 after the seismic event. The east slope exhibited substantial displacement and settlement, reaching 62.50 mm and 62.59 mm, respectively, with plastic zones predominantly concentrated at the slope crest and toe, indicating a landslide risk. Therefore, it is recommended to strengthen routine monitoring and support of the east slope to ensure safe mining operations.更多还原