EXPERIMENTAL STUDY ON THE MECHANICAL PROPERTIES OF ROCK SLOPE COLLAPSE

摘要

The distinct geological and environmental characteristics in the Sichuan-Chongqing region of China are as follows: the crustal movements are very active; the terrain is steep and rugged, and the rainfall is abundant and strong; many bedding steep rock slopes exist in Sichuan-Chongqing region with relatively common failure mode of sliding - bending failure. The structural characteristics and failure modes of bedding steep slope were summarized based on the collection and analysis for destruction characteristic of slope instability in this paper, and the typical failure modes of bedding steep rock slope in seismic area considering seismic effect were proposed combined with the geological and environmental characteristics of Sichuan-Chongqing region. Then, the mechanical characteristics and deformation failure mechanism of bedding steep slope were studied by the geological mechanics model test for bending failure mechanism and control method of bedding steep slope. With the development of test bench composed by high strength composite steel structure and the adoption of servo hydraulic loading system and optical fiber grating real-time information monitoring system, deformation and mechanical characteristics were studied under different conditions of slide mass thickness and loading.