Research On The Bearing Capacity Of Large Cross-section Anti-slide Piles In Landslide Engineering

In landslide engineering,anti-slide piles are often used to control landslide,especially large cross-section anti-slide piles.The research on the bearing capacity of large cross-section anti-slide pile in engineering is still in the stage of semi-empirical and semi-theoretical.In this paper,the numerical simulation analysis method is used to study the stress distribution,displacement and the bearing capacity of large cross-section anti-slide pile and compare it with the traditional theoretical analysis method.The main contents and results of the research are as follows:(1)Through consulting relevant books and literatures,the bearing forms of horizontal bearing piles at the present stage are understood(2)Several reinforced concrete models in ABAQUS are briefly introduced,and the concrete modeling method of large section anti-slide pile studied in this paper is described.(3)By using ABAQUS finite element software,the stress distribution form of small section anti-slide pile,displacement evolution process with load,and whether the bearing capacity is consistent with the traditional theoretical analysis method are verified.(4)The stress distribution of pile is analyzed by ABAQUS numerical simulation.It is shown that the stress distribution mode of pile is different from that of traditional theoretical method when the large section pile is simulated by numerical simulation method.Therefore,in practical engineering,if the traditional theoretical method is adopted to study the large section anti-slide pile,there are some defects(5)The stress distribution of reinforcement is studied by ABAQUS numerical simulation.It is shown that the stress distribution pattern of reinforcement is different from that of traditional theoretical method when the large-section pile is simulated by numerical simulation analysis method.When the pile is destroyed,the steel bar on the tension side does not reach the yield stress,and the large section pile is destroyed by shear.(6)It is found that the bearing capacity of pile obtained by numericalsimulation is different from that obtained by theoretical calculation method.