Study On The Slope Stability And Its Rheological Influence In Mountain Highway

At the current stage, the highway construction is the focus and hot-spot of infrastructure construction in our country. With the construction of highway in mountain areas of our country, the slope stability analysis of highway now has been one of the major issues in infrastructure construction. The rheological effect of rock and soil is also an important factor affecting the deformation and stability of slope, and this detrimental influence would increase in the process of excavation. The induction factors that lead to slope deformation and instability would become complicated and diversified as time goes by. Therefore, many scholars in the world make a great effort to research those influence factors. In view of the above, studies in this paper are stated below:1. With summarizing the slope analysis methods in mountainous region in the present stage and comparing the feature and applicable conditions of each method, I choose the suitable approach to my engineer practice.2. The basic information of Huanglongpo slope in the highway from Rucheng (xiangganjie) to Chenzhou (k106+680-k107+000) has been collected, arranged and analyzed in order to be well learned its engineering condition.3. With the test in laboratory, the rock physical and mechanical parameters were obtained. And the creep and relaxation tests have been conducted for analyzing the slope stability in the later stage.4. To get the safety factor and the potential sliding surface, the paper applied Bishop Method, Janbu Method and Morgenstern-Price Method to analyze the stability of typical profile.5. The stability was compared at the condition considering the rheological effect or not through numerical simulation for slope typical profile by FLAC3D. The research shows:the rheological effect of geotechnical material will increase the slope deformation and do harm to the slope stability.