The periodic fluctuation of reservoir water level is the core driving factor that induces landslides in the reservoir area and leads to the degradation of anti-slip pile performance. Clarifying the coupling mechanism of the two is of great significance for landslide prevention and control. This article takes landslides and anti slip pile engineering in reservoir areas as the object, following the route of "theoretical sorting - experimental monitoring - numerical simulation - case verification", and combining indoor model experiments, on-site monitoring and numerical simulation, systematically explores the evolution law of landslide seepage under reservoir water level fluctuations, the time response characteristics and coupling mechanism of anti slip piles. The study clarified the evolution characteristics of seepage fields at different water level stages and distinguished the differences between seepage driven and buoyancy driven landslides; Revealed the evolution laws of time-dependent deformation, stress, and damage of anti slip piles, and quantified the weights of influencing factors; Elucidated the bidirectional coupling mechanism centered on seepage dynamic water pressure and buoyancy; We have established an evaluation system and method for the time-dependent performance of anti slip piles, and proposed optimization design and prevention measures. The research results provide technical support for the design, construction, and operation of anti-slip piles in the reservoir area, which is of great value in improving the long-term stability of the project and reducing disaster risks.

Ruoyu Zhang. Research on the Evolution of Slope Seepage Flow and the Time-Dependent Response of Anti-Slip Piles under the Fluctuating Water Level of Reservoir. International Journal of Frontiers in Engineering Technology (2026), Vol. 8, Issue 1: 81-86. https://doi.org/10.25236/IJFET.2026.080112.

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