Stability Analysis Of Loess Slope And Design Of Anti-slide Piles

With the rapid development of the national economy,construction activities such as road building,mining,and dam construction have become increasingly frequent,involving a large number of slope-based geological disasters.Due to the advantages of strong anti-sliding ability,flexible selection of pile position,small i MPact on the stability of the sliding body,and safety in construction,anti-slide piles have become a very important method in the management of slopes.The anti-sliding effect of anti-sliding piles is mainly to balance the slope thrust with the anchorage of the stable formation and passive resistance.On the basis of previous studies,this paper takes the engineering example of the Yantaishan Off-oil platform slope as the background,and uses the finite element analysis software ABAQUS to use numerical simulation as the research method to carry out the stability analysis and related parameters of anti-slide pile reinforcement for slopes.The design research,the main research results are as follows:(1)Macroscopic deformation analysis of slopes.The results show that the whole slope is in a basically stable state,but there is a phenomenon of water seepage on slope slope and there is a trend toward the development of the rear edge.It is necessary to further analyze and prove its stability.(2)Using the improved implicit solution of the transfer coefficient to calculate the stability of the slope,the results show that: the slope body is in a basically stable state in the natural state,and is in an under-stable state in the saturated state,and the recommended saturated conditions are given.Design and check;(3)Using ABAQUS software to simulate the stability of the slope under natural and saturated conditions.The results show that the slope body is in a stable state in its natural state and in a state of undersaturation under saturation conditions.It needs to bereinforced and is consistent with the results of the improved implicit coefficient of the transfer coefficient.(4)Select the parameters such as pile position,pile length,pile spacing,section size and other parameters of anti-sliding piles.Through numerical simulation and results analysis,the influence of the above parameter changes on the slope reinforcement effect is obtained,and the various parameters are determined accordingly.The optimal value of the parameter;(5)According to the results of numerical simulation and engineering practice,determine the best design scheme for slope reinforcement of anti-slide piles in this project,and simulate and analyze the optimal design scheme.The results show that under the optimal program reinforcement,the slope plasticity The area cannot be connected,the displacement is limited and it is in a stable state.