The Study Of Landslide Stability And Optimization For Anti-sliding Piles Based On ABAQUS

After earthquake and volcano, Landslide is the third natural disaster that greatly threats the construction work as well as human life and propriety. Because of the high-speed development of the economy and the increasing frequency of the construction work, the problem of landslide becomes more and more obvious in China where the landside is widely distributed almost all over the provinces. As a result, in order to prevent and reduce this disaster, the subject of landslide treatment becomes a researching hotspot in the academic and the engineering fields both at home and abroad.Sweden method, Bishop method, limitless slice method and other methods of slope stability analysis were introduced in this text at first. On the basis of forefathers' theoretical research, the stability of one soil slope instance was studied using method of strength reduction on the platform of finite element software ABAQUS. The accuracy has been verified by comparing analysis result of finite element with the results of calculation of the theory. The influence on stability of slope was discussed separately by change the loads on the slope carries and excavates of slope foot. Meanwhile, the soil arching effect produced when the slope is reinforced by anti-sliding piles and the anchored depth have been simulated using a large general analysis software ABAQUS. The influence on the soil arching were analysed by changing the position of piles and the influence on the bending moment and shear force of anti-sliding piles were analysed by changing the anchored depth.The evaluated method of slope stability was summarized through analysis for the result and the new method that ascertaining the location of the slip surface was presented according to the saltation of displacement and the plastic strain in a certain place under the slope surface which make the difficulty that unknown the slip surface was resolved for traditional limit equilibrium method. Meanwhile, the methods that confirm the spacing between the anti-sliding piles and anchored depth were presented through analysis of FEM.