Finite element analysis of the structural characteristics of new assembly buttressed retaining wall
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Abstract:
New assembly buttressed retaining wall is environmentally friendly, beautiful, and can be constructed rapidly, but the adjoining faces between the old and new concrete and the joints can affect the integrity of the structure. Based on the renovation project of Maling river in Suqian city, we analyzed the characteristics of the stress, displacement, and deformation of the wall and the influence of different parameters of the adjoining faces on the loading behavior of the structure using the finite element method. The results showed that the shear stress of the adjoining faces is smaller than the anti-sliding force and that the elastic shear deformation is very small and belongs to the elastic deformation. The tensile stress in the joint is far less than the tensile strength of the concrete. There is greater tensile stress in the junctions between the upper end of the buttress and the precast slab, between the front end of the buttress and the floor, and between the panel and floor. The maximum tensile stress is 1.5MPa, less than the design tensile strength of the concrete. The deformation and displacement of the retaining wall are small and meet the application requirements. Without regard to the cohesion of the adjoining face, the friction coefficient of the adjoining face is more than 0.5. The new assembly buttressed retaining wall of the project meets the safety requirements. The technical scheme is feasible and applicable. The analysis results can provide reference for design and construction.
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