Stability Analysis Of The Slope With The Joint Surface Of Same Inclination And The Study On The Force Of The Anchor Group

The Suzhou a landslide engineering as an example,combined with the engineering geological conditions of the landslide area,with lean with slow tilt changes in the characteristics of jointed slope and produce principle,and the interference factors launches analysis method to study the stability.By using the limit equilibrium analysis of engineering examples,calculate the safety factor of the initial state of landslide,landslide control methods,the cutting slope and backfill pressure foot way to prevent sliding plane.The finite element simulation of slope reinforcement engineering using anchor group,analysis of changes in the axial force of bolt and rock mass displacement,change the single factors such as changes of joint spacing,anchor angle,puts forward the optimization scheme.Finally,this paper draws the following conclusions(1)using the limit equilibrium analysis to verify the calculation safety factor of the original slope is less than one.The unstable state of the slope.Must carry on the slope stability control.2.For the prevention and treatment scheme for the stability calculation of excavation zone calculation results can not meet the design specification of slope safety factor.Need to bolt.The foot area and the overall stability meet the design requirements,and will not produce the slope instability.3.In this paper,the finite element simulation of anchor bolts used in the reinforcement engineering is carried out.By the numerical simulation analysis,it can be known that under the condition of keeping the tensile strength of the anchor itself,the spacing of the joints,the inclination of the bolt and the spacing of the bolts are the important factors that affect the distribution of the anchor force.However,changes influence the distribution of joint bolt length,joint strength of anchors and anchoring force of rock displacement is small.4.According to the stress distribution of the anchor group in the slope,the optimal design of the anchor group in the control scheme is optimized.A project of different diameter and length is put forward for engineering case.The concrete is divided into four groups,the length of the bolt from the top to the bolt,the diameter of the bolt is from the fine to the bottom.Such a method to further improve anchorage efficiency.