Study On Stability Analysis And Treatment Measures Of Highway Slope

With the rapid development of China's national economy,highway slope,as a very common structural form in the civil engineering industry,is widely used in physical engineering.Highway slope instability is an important natural disaster.The disastrous nature of slope instability is too fierce,which brings huge losses to national property and life safety.However,the slope is an irreplaceable structural form.In this paper,the North unfavorable geological slope of a freeway separation overpass is studied.Firstly,the engineering background is introduced,and the topography,hydrogeological conditions and seismic parameters are analyzed.According to Hoek-Brown criterion,the research route chooses the calculation section and parameters,calculates the corresponding safety factor,and accurately analyses the stability of the slope in this section.Based on the inversion parameters and models of rock mass,taking the design parameters required by relevant codes as the minimum design requirements,the reinforcement support parameters are adjusted continuously,and the stress,displacement,plastic strain and safety factor are analyzed repeatedly by numerical analysis method until the overall safety requirements of the codes are met.After choosing the corresponding protective measures,the displacement nephogram and safety factor are calculated under the normal working condition,the rainstorm working condition and the earthquake working condition respectively,and whether the slope meets the stability requirement is checked by the protective measures.