Analysis of Layered Rock Slope Stability and Reinforcement with Anchor Bolts Based on the Strength Reduction Method
Slope stability analysis is always an important topic in the field of geotechnical engineering.The bedding rock slope with weak interlayers is more unstable than other structures and is prone to landslide disasters.In this paper,the deformation and stability of bedding rock slope with weak interlayers are analyzed by the finite element strength reduction method,and the influence of different reinforcement schemes on slope stability and slope deformation is studied.The results show that the strength of the weak interlayers is highly related to the slope stability,and landslides occur when the plastic zone formed by the weak layer penetrates through to the slope top.In terms of slope reinforcement,the comparative analysis of bolt reinforcement schemes in different positions shows that the reinforcement of the slope toe has the greatest effect on slope stability,and the reinforcement of bedding rock slope should first be considered from the slope foot.Under the condition that the total cross-sectional area of bolts passing through the potential slip plane is appropriate,the slope can produce enough displacement before instability,which provides conditions for the early warning of slope disasters.This study provides a reference for the stability analysis of bedding rock slopes with weak interlayers and the optimal design of reinforcement schemes.
slope stabilityfinite element strength reduction methodsoft layerbedding rock slopereinforcement scheme
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