Stability Research On Bedding Rock Cutting Slope And Anti-slide Pile Supporting

Bedding landslide is a kind of common engineering geologic hazard, which often occurs suddenly with strong destructive power. Anti-slide pile supporting is an effective way for preventing and controlling the bedding landslide. With the rapid economical development in mid and west region of China, more and more stability problems of bedding rock slope will appear in such engineering construction as highway, railway and water conservation. How to quickly and effectively settle the instability and supporting problem of the bedding rock slope has been an important research topic in the geotechnical engineering field.Depending on the research topic of Shenlongjia tourist highway, stability of bedding rock cutting slope and anti-slide pile supporting is analyzed in this paper. Firstly, principle about FLAC (fast lagrangian analysis for continuum) is expounded, and its implement method for analysis on bedding rock slope is discussed. With FLAC3D program, the influence of excavation on the stability of bedding rock slope is analyzed. The analysis shows that excavation has significant influence to slope stability and can not be neglected. The theory about the design of anti-slide supporting is represented, and the supporting program for the bedding slope is presented. Combining FLAC principle with 3DM numerical simulation means, the anti-slide pile supporting with an instability slope is simulated. Stress behavior of anti-slide pile and the changes in displacement field, stress field, strain field that before and after anti-slide pile supporting are analyzed. Analysis shows stability of the slope is improved as a result of the anti-pile supporting. Finally, the influence of single factor and multi factor to the stability of bedding slope are analyzed. it is indicated that the section size, anchoring depth and separation of anti-slide piles may all have obvious influence on supporting effect, and the influence of separation of the anti-slide piles is the most.As one part of research results of Shenlongjia tourist highway topic, the results of this paper could be used as a theoretical reference for the design and construction of the slope engineering of Shenlongjia highway, and also as a reference for the other similar projects.