Dynamic Stability Analysis of Rock Slope Supported by Double-Row Piles Based on Hoek-Brown Criterion

Hoek-Brown criterion was combined with strength reduction method in this paper. The dynamic response, stability and stress distribution of retaining structures for a slope located in southwest China were analyzed. Research results show that: the Hoek-Brown criterion can fully consider the influence of various factors such as the strength of rock mass and stress state. Besides, it can also consider the deformation and failure characteristics of the rock slope; the slope has certain acceleration amplification effect under earthquake action that the higher position of slope surface is, the more obvious amplification effect it would be; Due to the supporting role of double-row piles, the final failure surface appeared between two piles; the dynamic earth pressure of piles changed with the earthquake action; The internal force distribution of the piles had something to do with the shape of landslide mass, and the largest stress appeared in the sliding zone.