Application research of a prestressed anchor cable‐pile‐slab wall supporting structure for multistage high fill slopes

• Main Authors: Yan‐peng Zhu, Zhen‐hong Wei, Qiao‐hong Zhu
• Format: Article
• Language: English
• Published: Wiley 2020-02-01
• Series: Engineering Reports
• Subjects: high fill slope; multistage; numerical simulation; on‐site monitoring; pile‐slab wall; prestressed anchor cable
• Online Access: https://doi.org/10.1002/eng2.12120

Abstract When carrying out engineering constructions in a mountainous area with complex geological conditions, high fill slopes commonly need to be strengthened. At present, several of the main supporting structures have unique defects and shortcomings when used in the reinforcement of high fill slopes. Therefore, this paper proposes to apply a prestressed anchor cable‐pile‐slab wall structure to high fill slope support engineering, relying on the long‐term monitoring results of an actual project and using the finite difference finite element software FLAC3D to model the supporting structure. The displacement of the slope, the earth pressure behind the pile, the internal force of the supporting structure and the distribution of the anchor cable force are analyzed comprehensively and systematically. The analysis and study show that the prestressed anchor cable‐pile‐slab wall supporting structure can effectively strengthen a filled slope and control its horizontal displacement to improve its overall stability. The analysis results are used to optimize and improve this approach, which provides a new direction for the reinforcement of high fill slopes, and the results can provide a better reference for the reinforcement and design of fill slopes.