The Characteristics And Risk Assessment Of Landslide In The Middle School County,Yongren County

In this paper,based on yongren county of yunnan ethnic middle school landslide project,through exploration test,numerical simulation,and a variety of means such as deformation monitoring,the national middle school landslide characteristics,stability and control scheme are studied,anti-slide pile in the landslide reinforcement mechanism are discussed in this paper,the main research work and achievements are as follows: 1.based on yongren county national secondary landslide exploration results,this paper expounds the natural geological conditions of the landslide area,landslides,the morphology,size,structure,characteristics and the deformation and destruction.Using the theory of limit equilibrium,the landslide under three conditions of three typical profile stability has carried on the analysis and calculation,the calculation results show that the landslide stability coefficients are below 1.0,the landslide is in a state of unstable and unstable.2.according to the state of landslide stability,combined with the importance of the object of the harm and its distribution characteristics,similar landslide governance success experience,proposed two regulation.Through the effect of governance,governance,quantities,construction difficulty and the comparative analysis of impact on the environment,put forward the best management scheme,namely the anti-slide pile + retaining wall comprehensive treatment plan.After reinforcement focuses on anti-slide pile by displacement monitoring of landslide,individual monitoring-station during monitoring,there was no obvious horizontal displacement and vertical displacement of structure vertically in a relatively stable state,the friction pile reinforcement effect is obvious.3.the finite element software ABAQUS,the use of strength subtraction anti-slide pile in the landslide reinforcement effect are analyzed in numerical simulation,the stress and strain contours of anti-slide pile,time force-displacement relation curve,calculated value compared with field monitoring data analysis is consistent,anti-slide pile is verified the effectiveness and reliability of the landslide control.