Slope stability analysis considering the rotated anisotropy in soil properties
ISSN: 0264-4401
Article publication date: 25 January 2021
Issue publication date: 28 July 2021
Abstract
Purpose
This paper aims to analyze the influence of rotated anisotropy on the stability of slope, the random finite element method is used in this study.
Design/methodology/approach
The random field is generated by the discrete cosine transform (DCT) method, which can generate random field with different rotated angles conveniently.
Findings
Two idealized slopes are analyzed; it is observed that the rotated angle significantly affects the slope failure risk. The two examples support the conclusion that when the orientation of the layers is nearly perpendicular to the slip surface, the slope is in a relative stable condition. The results of heterogeneous slope with two clay layers demonstrate that the rotated angle of lower layer mainly controls the failure mechanism of the slope, and the rotated angle of upper layer exhibits a significant influence on the probability of slope failure.
Originality/value
The method for rotated anisotropy random field generation based on the DCT has a simple expression with few parameters and is convenient for implementation and practical application. The proposed method and the results obtained are useful for analyzing the stability of the heterogeneous slopes in engineering projects.
Keywords
Acknowledgements
This research is supported by the National Key R&D Program of China (No. 2017YFC1501100) and the National Natural Science Foundation of China (Grant Nos. 51939004, 11772116 and 11772118), and the Qinglan project is gratefully acknowledged.
Conflict of interest: The authors declared that they have no conflicts of interest to this work.
Citation
Wang, Z., Wang, H., Xu, W. and Xie, W.C. (2021), "Slope stability analysis considering the rotated anisotropy in soil properties", Engineering Computations, Vol. 38 No. 7, pp. 3021-3035. https://doi.org/10.1108/EC-05-2020-0248
Publisher
:Emerald Publishing Limited
Copyright © 2020, Emerald Publishing Limited