The Research On The Stability Analysis And Reinforcement Measures Of Slope With Weak Interlayer

With the rapid development of the national economy, China's infrastructure construction has reached an unprecedented peak, more and more slopes are excavated in the rocks .The slope stability problem is very conspicuous because of special geological, geomorphological conditions and an increasingly human engineering activities. Large amounts of data confirmed that the instability and sliding failure of the slope occurred in the weak interlayer, joints, faults and other structural surface areas mostly, especially in the soft interlayer , the weak interlayer often become the controlling factors of landslide instability. Therefore, it's essential to carry out the study on the stability of the slope containing the weak interlayer.This text will take the typical slope as example, adopting numerical analysis method to create the numerical models with different slope heights,slope angles,weak interlayer inclinations,cohesion,friction angle in the ANSYS software, analyzing the displacement map and solving the safety factor of the model in the FLAC3D software .Through a large number of numerical simulations to study the law which slope heights,slope angles,weak interlayer inclinations,cohesion,friction angle and other factors impact on the safety factor as well as slope deformation characteristics; applying prestressed cable and anti-slide pile on the typical model, contrasting the reinforced effects (safety factor), and comparing the two kinds of reinforcement measures on the maximum unbalanced force,slope of internal displacement,shear strain increment and velocity vector. On this basis, analyzing the social effects and economic effects of the prestressed cable and anti-slide pile specific to the different types of reinforced effects , and electing a suitable reinforcement measures.In this paper, the outcome of institute can be to further improve stability analysis and reinforcement measures of slope .as well as to provide a reference and guide for similar projects.