This study explores the influence of rotated anisotropy of soil property on the bearing capacity of embedded strip footings using the random finite element method. An extensive parametric study was carried out considering the different scales of fluctuations, embedded depths, and rotation angles of the random fields. Results show that for various footing embedded depths considered in this study, the major scale of fluctuation has a large influence on the probability of bearing capacity failure in all cases. Furthermore, the mean bearing capacity remains almost constant regardless of the change of rotation angle, while the probability of bearing capacity failure decreases with the increase of rotation angle. The significant role of rotation angle in probabilistic analysis highlights the need to understand and consider the soil layer orientation in geotechnical foundation design to achieve safety and reliability.

本研究采用随机有限元方法探讨土体性质的旋转各向异性对嵌入式条形基础承载力的影响。考虑到随机场的不同尺度波动、嵌入深度和旋转角度，进行了广泛的参数研究。结果表明，对于本研究中考虑的各种基脚嵌入深度，波动的主要尺度对所有情况下的承载力失效概率都有很大影响。此外，无论旋转角度如何变化，平均承载力几乎保持不变，而承载力失效的概率随着旋转角度的增加而降低。