Research On Stability Of Soil Slope Based On Strength Reduction Method

Slope stability research has always been a particularly complicated and important issue.Slope stability is more reasonably and accurately analyzed.Slope stability studies under various conditions are performed.Slopes under load are reinforced after reinforcement.The influence of various parameters of slopes on slopes under different conditions on slopes is the focus of research by geotechnical workers.The slope under load is more accurately analyzed,and the slope after the anti-slide pile reinforcement is reasonably researched and designed.It has been a major and difficult point of research at present.Compared with the traditional slope analysis method,the finite element strength reduction method Many advantages.In the face of these difficulties,this paper uses the finite element software ABAQUS to further study the slope top load and slope stability under the action of anti-slide pile reinforcement through strength reduction.Some studies are carried out systematically as below:(1)The slope safety factor,the strength reduction method to simulate the serious and difficult points of the slope,the basic principle of the strength reduction method,and the instability criteria are explained;the results of the strength reduction method and the limit equilibrium method are calculated by a slope example.A comparative analysis is performed,and various instability criteria are analyzed in detail.At the same time,the feasibility of slope stability analysis by finite element strength reduction method is proved.(2)The influence factors of the stability of the soil slope were studied.The influence of the shape and size of the slope and the physical and mechanical parameters of the soil on the slope stability were analyzed respectively.The mesh density was different,the slope ratio was different,and the viscosity The change of slope stability under different cohesion,internal friction angle,elastic modulus and Poisson's ratio.It was found that the slope ratio,mesh size,internal friction angle,cohesion have a greater influence on the safety factor of the slope,while the Poisson's ratio and the elastic modulus have less influence on the safety factor of the slope(3)The stability of the soil slope under local uniform load on the top of the slope was studied.Three important factors of the slope under load are studied.One is to change the magnitude of the load on the top of the slope,and to study the changing rules of the safety factor and sliding surface of the slope;the other is to change the width of the local load on the top of the slope.Study the stability;third,change the distance from the local load point to the shoulder of the slope to study the stability of the slope(4)The stability of the soil slope reinforced by anti-slide piles is analyzed.By comparing the safety factor of the slope before and after reinforcement,it is clear that the anti-slide pile has obvious effect of strengthening the slope;by changing the position of the anti-slide pile body,the diameter of the anti-slide pile and the length of the anti-slide pile,The stability of the reinforced slope is studied and analyzed.