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- Title
An analytical solution to predict slip-buckling failure of bedding rock slopes under the influence of top loading and earthquakes: Case studies of Hejia landslide and Tangjiashan landslide.
- Authors
Jin, Leilei; Ju, Guanghong; Chen, Zhengfeng; Xiao, Qianfeng; Fu, Wenxi; Ye, Fei; Wei, Yufeng
- Abstract
Slip-buckling failure is a common occurrence in bedding rock slopes, and it can be triggered by long-term gravitational stress, earthquakes, top loading and intense rainfall. In this paper, an analytical solution is proposed to address the slip-buckling failure of bedding rock slopes under the influences of top loading and earthquakes based on mechanical analysis and energy equilibrium theory. The rock layers of bedding slopes are treated as inclined plate beams with hinge support at the slope top and fixed support at the slope toe. The equation for the deflection curve of each rock column of the bedding rock slope under earthquake and top loading can be derived by analysing the forces acting on each rock layer. According to the energy equilibrium theory, the deformation energy of the rock column equals the work done by external forces, from which the critical length of a slope rock layer for slip-buckling failure can be determined. The location of the toe of the rupture surface, where slip-buckling failure occurs, corresponds to the point of maximum deflection on the deflection curve of the rock layer. Clearly, the location of the toe of the rupture surface is where the first derivative of the deflection curve equation equals zero. This approach has been applied to the Hejia landslide and Tangjiashan earthquake-triggered landslide, and the calculation results are in good agreement with the field investigation results.
- Subjects
ROCK slopes; LANDSLIDES; ANALYTICAL solutions; EARTHQUAKES; ROCK deformation; FIELD research
- Publication
Landslides, 2024, Vol 21, Issue 7, p1617
- ISSN
1612-510X
- Publication type
Article
- DOI
10.1007/s10346-024-02232-w