An evaluation method based on vector similarity is introduced to determine the sensitivity of stability factors of high fill slope under seismic action in this paper. The Euclidean similarity and cosine similarity of slope stability factors are calculated. In addition, grey relational analysis method is used to calculate the case, and the three calculation results are compared. The results show that the sensitivity ranking results of high fill slope stability factors obtained by cosine similarity and grey correlation analysis are consistent, and slightly different from those obtained by Euclidean similarity. This indicates that cosine similarity method is more suitable for sensitivity evaluation of high fill slope stability factors than Euclidean similarity method.

提出了一种基于矢量相似度的评价方法，确定高填方边坡稳定因子在地震作用下的敏感性。计算了边坡稳定因子的欧几里得相似度和余弦相似度。另外，采用灰色关联分析法对案例进行了计算，并对三种计算结果进行了比较。结果表明，通过余弦相似度和灰色关联分析获得的高填土边坡稳定因子的灵敏度等级结果是一致的，与通过欧几里得相似度获得的灵敏度等级结果略有不同。这表明余弦相似度方法比欧几里得相似度方法更适合于高填充边坡稳定性因子的敏感性评估。