The Optimization Of Calculation Method And Analysis Of Pile Foundation-Trimmer Beam-Retaining Wall Structure

At present researches on retaining structures of subgrade is very active,subgrade retaining structures form gradually developed from a single structure to a composite structure.In many practical applications, the combined retaining structure has been recognized,retaining wall on rest beams of pile foundationis one of the widely used combination.We have seldom seen the application of retaining wall on rest beams of pile foundationin the subgrade support engineering, and the structure stress of retaining wall on rest beams of pile foundation is also some different from the other retaining structure. Theworking mechanism of retaining wall on rest beams of pile foundation is very complex.Thus,the paper has obtained the result of the pile-roil interaction, the deformation law and the internal forceusing a combination methods of theoretical analysis and the numerical simulation.Depth compared the different of resultsin two methods.The main conclusions are as follows:(1) Determining the load distribution on retaining wall on rest beams of pile foundation structure and the theoretical calculation method for earth pressure and landslide thrust.(2) Relying on the actual working conditions, a theoretical calculation is carried out on its structure to get the theoretical value and ABAQUS numerical analysis software is used in the simulation of on-site conditions to get the numerical value.(3) Based on the comparison between the two values, it can be found that load distribution and the selection of calculation method in the theoretical value are more secure and the distribution of related internal force is consistent with the pile. Generally the theoretical value is greater than the numerical value.(4) According to the condition of the slope and the force condition of the pile, the thesis author optimized the calculation of load and internal forces in the light of related theories and compared the corresponding results in combination with internal force calculation methods of retaining wall on rest beams of pile foundation.