Reinforced Abutment Stress And Deformation Analysis

In recent decades, as China's massive public infrastructure construction, reinforced technology got a very good development, application scope more and more widely. Reinforced structure engineering performance is good, usefulness wide, low cost.Reinforced structure is mainly through adding in soil geotextile compound materials to improve soil integrity and limit the local deformation soil. This kind of technology, while apply more extensive, but in many practical problems, still no reliable theoretical analysis of design basis guiding, mostly reference actual experience.At present various test and numerical simulation of the actual problem solving is more onefold, also failed to draw the most common and accord with the actual engineering testing method. In this paper a cross railway bridge in liaoning province based on the abutment # 20, through the application of engineering of reinforced abutment ansys finite element software is simulated and analyzed and calculated. On the abutment respectively on plane strain simulation and three-dimensional entity simulation calculation, and combined with engineering practice, according to data of soil and the internal force abutment of deformation and panel, comparing the advantages and disadvantages of various methods, and puts forward a reliable numerical simulation method, design and construction of reinforced abutment and provide guidance. The main contents include:1. Plane analysisThrough the front wall to the bridge abutment unilateral stiffened and the lateral bilateral stiffened homogenize the plane strain simulation calculation, analysis of the filled soil and panel, finds out displacement variation reinforced belt with potential sliding surface stress relations;2. The abutment three face stiffened three-dimensional entity simulationThrough the whole of the abutment 3d entity of nonlinear simulation calculation, considering the circumstances soil surface panel emphatically analyzed the filled soil and panel, displacement variation and graphic simulation by comparing analysis;3. Numerical simulation results with the field data collection analysis contrast Numerical results compared with actual data, combined with the theoretical calculation, inspection, and draw the numerical calculation results of simulation and 3d simulation flat, summarizes the characteristics and emphasis in the finite element simulation method is more reasonable.