Seismic response and failure mechanism analysis of rock slope reinforced by anchored pile structures

Abstract

Anchored pile structures is one flexible retaining structure that widely used in the slope stabilization and landslide prevention. However, the dynamic characteristics of rock slope reinforced by this retaining structure has not been systematically studied and remain poorly understood. In present study, a series of large-scale shaking tests were conducted to explore the seismic response and failure mechanism of rock slope reinforced by anchored pile structures. The acceleration responses, the rock-structures interaction characteristic, and seismic failure mechanism of the rock slope is presented and systematically analysed. The elevation and surface amplification effect of rock slope is identified by the distribution of the acceleration responses inside the slope. The dynamic interaction between the rock and pile structures was revealed by the distribution model dynamic earth pressure along the pile body. The results obtained in present study can promote the understanding of seismic performance of slope reinforced by anchored pile structures, and provide a theoretical basis for the seismic design of this kind of retaining structure.