Abstract
The preferred plane often exists in a layered slope, which has a main influence on the slope stability. Such a plane can evolve into the failure surface, due to the internal and external triggers of landslides. This paper proposes a case study of the failure of a highway slope in Sichuan, China. The site investigations were conducted using a number of methods, such as geological survey, unmanned aerial vehicle survey, slope monitoring, in-situ and laboratory tests. Through the case study, the failure mechanism of the layered slope was discussed, where the slope stability analysis was conducted using the limit equilibrium method (slip-wedge method) and strength reduction method (SRM). According to the circumstance of the landslide area and the requirement for the highway, this paper also proposes the stabilization measures, which was subsequently validated by SRM. Finally, the sliding mechanism of the landslide was discussed.
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This research was supported by Central Plains Science and technology innovation leader Project (214200510030).
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Study design, ZH and LM; Writing-original draft, CW and XL; Writing-review & editing, TR and ZH. All the authors participated in the critical revision, and approved the final version of the manuscript.
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Ran, T., Huang, Z., Meng, L. et al. Mechanisms and Stabilization Measures of Layered Slope: A Study Case of a Layered Slope in Sichuan, China. Geotech Geol Eng 40, 785–794 (2022). https://doi.org/10.1007/s10706-021-01924-7
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DOI: https://doi.org/10.1007/s10706-021-01924-7