Stability analysis of horizontal-vertical ribs-reinforced slopes based on improved minimum potential energy method

JIANG Jian-guo; CHEN Yuan; LIU Sun-guang; ZHAO Fa-jia

doi:10.11779/CJGE202105008

Volume 43 Issue 5

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Chinese Journal of Geotechnical Engineering > 2021 > 43(5): 850-857. > DOI: 10.11779/CJGE202105008

JIANG Jian-guo, CHEN Yuan, LIU Sun-guang, ZHAO Fa-jia. Stability analysis of horizontal-vertical ribs-reinforced slopes based on improved minimum potential energy method[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(5): 850-857. DOI: 10.11779/CJGE202105008

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Stability analysis of horizontal-vertical ribs-reinforced slopes based on improved minimum potential energy method

School of Civil Engineering, Central South University, Changsha 410075, China

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Received Date: May 10, 2020
Available Online: December 04, 2022

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Abstract

Based on the improved minimum potential energy algorithm, a new method for the stability analysis of horizontal-vertical (H-V) ribs-reinforced slopes is proposed. In this method, the frictional potential energy of horizontal reinforcement, linear elastic strain energy and deformation potential energy of vertical reinforcement are considered when the potential energy function for the slope-supporting system is established. A potential energy model suitable for the studied slope is established through the shear potential energy of the reinforced slope according to the static equilibrium equation for virtual displacement. The analysis process of the reinforced slope is simplified, and the calculation efficiency is improved by solving the safety factor of the slope with the virtual displacement of the minimum potential energy of the studied slope. By comparing and analyzing the calculated results with those of the published papers, the feasibility of the proposed method is proved. The effect of strength parameters of soils such as cohesive force and internal friction angle on the slope stability is also analyzed, which provides reference for the application and promotion of three-dimensional reinforced slope technology in engineering.
- improved minimum potential energy method,
- slope stability,
- horizontal-vertical ribs,
- safety factor

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