Filled conduit is adopted as an example to analyze the finite elements of its structure by ANSYS program. The distributed law of the annular stress of conduit is analyzed and it is pointed out that the conduit top, bottom and side are the key conduit sections. Meanwhile, the results of ANSYS analysis are compared with those of structural mechanics and BEM method. At the same time, the deformation of backfilled earth around conduit is analyzed and compared with Anson Marston's theory.
The basic structural analysis of filled conduit was done with the ANSYS program. The basic process includes building of model, applying of boundary condition and loads, solving of model and analysis of result. The distributed law of annular stress of conduit was done. This paper pointed that the sections of conduit top, conduit bottom and conduit side were the key sections. The stress of conduit of ANSYS analysis method was compared with The Structural Method and BEM Method. At the same time, the deformation of backfilled earth around conduit was done and compared to the theory of Anson Marston.
