结合拟建于高边坡坡顶的变电站工程,分析强夯施工振动的衰减规律与强夯引起建筑物破坏判据,确定了强夯施工振动的影响区域;采用FLAC软件建立强夯对边坡稳定性影响的数值模拟模型,分析计算不同夯击能条件下边坡关键监测点的水平振动速度、竖向振动速度和坡面的水平位移;根据强夯振动引起建筑物破坏判据,结合数值模拟计算结果,针对减少强夯对边坡稳定性的影响,提出强夯的范围及夯击能的合理取值.%Based on a substation engineering built on the top of high slope, the attenuation law of dynamic compaction vibration and the failure criterion of buildings caused by dynamic compaction were analyzed, respectively, and then the influencing regional of the dynamic compaction vibration was determined. A numerical simulation model of the influence of dynamic compaction on the slope stability was established using FLAC software, and some analysis and calculation were conducted in the numerical model, including the horizontal vibration velocity and vertical vibration velocity of the key monitoring points, and the horizontal displacement of the slope under different tamping energy. According to the failure criterion of buildings caused by the dynamic compaction vibration and the nu-merical results, the range of dynamic compaction and a reasonable value of tamping energy are put forward to reduce the influence of dynamic compaction on the slope stability.
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