Stability Analysis And Its Methods Engineering Application Of Steep Dangerous Rock Body On The Soft Rock Base

Slope stability analysis has always been an important research topic in civil engineering. It occupies a very important position in Geotechnical Engineering and other engineering fields. Based on the Wujiang River Suofengyin Hydropower dangerous rocks' stability and reinforcement, likely to use a different method of sliding blocks, dumped slip and other forms of instability comparative analysis come to agreement in the feasibility analysis and reinforced reasonable.In this paper, the main study includes :1,In this paper, I made a brief introduction to the basic theory of finite element and itssolution ideas, and use the conventional solid element of rectangle or cuboids to describe the weak structure of the plane or space rock entities;2,Expounding many common methods of slope stability analysis: rigid limit equilibriumanalysis, the conventional finite element method, gradually reducing the shear strength of the finite element method and the nonlinear finite element method, and also making an analysis and comparison of the methods above. Considering the peculiarity of actual slope, weak rock are analyzed with two methods—the finite element method and the non-linear finite element method.3,Studying the stability of dangerous rocks in three state: before, during and after the process of strengthening so as to provide a scientific basis for evaluating the reasonability and effect of the strengthening method reasonably. The study considers a lot of factors, not only complex geological conditions (topography, stratigraphy, lithology, structural faults and fissures and dissection ) and complicated construction conditions (caused by the leakage of dangerous rocks in the bottom of the base wastewater soft rock fissures and accelerate the process mid-stream attitude softened Concrete the lateral pressure, etc.)but also the influences of complex reinforcement measures (anchor cable, and consolidation grouting holes and sliding pile, etc.).4,Study results will be given the stability of the strengthening and reinforcement of the process of strengthening the stability, strengthening further optimization of the dangerous rocks, and also some advice has been given on the reinforcement method because there are still some problems.