Figure 9.
Three panels show an axisymmetric model, installation stages, and mapped initial conditions.Panel a presents an axisymmetric wished in place model. A mesh extends over a domain measuring 0.375 metres in width and 0.45 metres in height, with a vertical element along one boundary. The upper diagrams show contour maps of gamma octahedral with a scale from 0 to 20 per cent. One map marks disturbed zones extending from the vertical element at the end of spinning up to 50 g. The second map shows concentrated contours adjacent to the element at the end of the bearing capacity test. Panel b shows a three dimensional soil block with a central vertical element and contour maps of gamma octahedral during installation. The contour scale ranges from 0 to 20 per cent. The maps correspond to 25 per cent installation, 50 per cent installation, a second 50 per cent installation view, and 100 per cent installation. Contours expand outward from the element and cover a larger volume as installation progresses. A dashed box encloses a stress strain mapping stage. Panel c presents axisymmetric mapped initial conditions. The left contour map shows gamma octahedral with values from 0 to 20 per cent concentrated adjacent to the vertical element. The right contour map shows p prime with a scale from 0 to 400 kilopascals. Higher values occur near the lower portion of the element and decrease away from it.

Geometry and key attributes of (a) the 2D axisymmetric FE analysis and (b) the 3D FE model employing the CEL scheme. The results are presented for characteristic analysis stages in terms of deformed geometry with superimposed contours of equivalent plastic strains and mean effective stress. (c) Mapping of stress–strain results of the CEL installation to initialise a 2D axisymmetric FE analysis

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