Engineering analysis on the mechanisms of buckling and toppling of bedding rock slope

Xing Qian; Hong Zhaoyuan; Liu Chengzhang; Xie Xinchun; Liu Jian

doi:10.20265/j.cnki.issn.1007-2993.2023-0945

Volume 39 Issue 2

Apr. 2025

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Article Navigation > GEOTECHNICAL ENGINEERING TECHNIQUE > 2025 > 39(2): 207-215

Xing Qian, Hong Zhaoyuan, Liu Chengzhang, Xie Xinchun, Liu Jian. Engineering analysis on the mechanisms of buckling and toppling of bedding rock slope[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2025, 39(2): 207-215. doi: 10.20265/j.cnki.issn.1007-2993.2023-0945

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Xing Qian, Hong Zhaoyuan, Liu Chengzhang, Xie Xinchun, Liu Jian. Engineering analysis on the mechanisms of buckling and toppling of bedding rock slope[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2025, 39(2): 207-215. doi: 10.20265/j.cnki.issn.1007-2993.2023-0945

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Engineering analysis on the mechanisms of buckling and toppling of bedding rock slope

doi: 10.20265/j.cnki.issn.1007-2993.2023-0945

1.
CMCU Engineering Co., Ltd., Chongqing 400039, China
2.
School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China

Received Date: 2023-12-29
Accepted Date: 2024-05-09
Rev Recd Date: 2024-04-19

Available Online: 2025-04-07

Publish Date: 2025-04-08

Abstract

Abstract

A large number of engineering practices show that the deformation and damage mechanisms of toppling and buckling may exist in the non-sliding damaged bedding slopes. To study the generation mechanism and support scheme of two special mechanisms, the basic conditions, deformation, and failure laws of bedding slopes were studied through discrete element numerical simulation method and relevant data analysis of typical engineering projects, combined with failure tests of layered rock masses. The results show that: for high-rise slopes, when the slope angle is the same or close to the dip angle of the rock layer, the foot of the slope may yield and shallow collapse under the self-weight of the surface layered rock mass, leading to the buckling failuare of the slope; when the slope angle is smaller than the dip angle of the rock layer, the slope may undergo toppling deformation; the toppling deformation and subsequent failure modes of layered slopes need to be viewed separately, and the final failure form is influenced by the evolution of slope deformation and undergoes dynamic changes. For layered rock slopes with mechanisms of buckling and toppling deformation, it is recommended to install high-stiffness support structures at the foot of the slope for support.
- bedding rock slope,
- buckling failure mechanism,
- toppling deformation,
- destruction mechanism,
- discrete element

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References(22)

References

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Engineering analysis on the mechanisms of buckling and toppling of bedding rock slope

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