1. Reference problem#
1.1. Geometry#
height: \(h=1m\)
width: \(l=1m\)
thickness: \(e=1m\)
Coordinates of points (in meters):
\(A\) |
|
|
|
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\(x\) |
0.5 |
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\(y\) |
0.5 |
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\(z\) |
0.5 |
1.2. Initial conditions, boundary conditions, and loading#
Phase 1:
The sample is brought to a homogeneous state of effective stresses: \({\mathrm{\sigma }}_{\mathit{xx}}^{0}={\mathrm{\sigma }}_{\mathit{yy}}^{0}={\mathrm{\sigma }}_{\mathit{zz}}^{0}=0.5\mathit{MPa}\) in 7000 s, by imposing the corresponding total pressure on the front, right and upper faces and by imposing zero water pressures everywhere. The movements are blocked on the back (\({u}_{x}=0\)), left side (\({u}_{y}=0\)) and bottom (\({u}_{z}=0\)) faces.
Phase 2:
The movements are kept blocked on the rear (\({u}_{x}=0\)), left lateral (\({u}_{y}=0\)) and lower (\({u}_{z}=0\)) faces. On all sides, hydraulic flows are zero.
An imposed displacement is applied on the upper face so as to obtain a deformation \({\varepsilon }_{\mathit{zz}}\mathrm{=}\mathrm{-}\mathrm{0,06}\) (counted from the start of phase 2) in 13000 s. On the front and right lateral faces, limit conditions in total stress are maintained:
\(\mathrm{\sigma }\mathrm{.}n={\mathrm{\sigma }}_{0}(=0.5\mathit{MPa})\)