Void distribution of specimens of ottawa sand

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The void distribution of specimens of Ottawa sand was quantified via Magnetic Resonance Imaging (MRI) technique. Two specimen reconstitution techniques, wet-tamping and air-pluviation, were used to generate the specimens. The specimen was prepared in a non-metallic triaxial cell. After fully saturated, the specimen with the cell was put inside a MRI device. Data was acquired at initial state and different stages of the conventional drained triaxial compression test. The acquired MRI data gives a direct measurement of the fluid phase in the voids, thus providing a complete picture of the local void distribution in saturated specimens. Programs written in Interactive Data Language (IDL) were used to implement the automated image processing and analysis from the collected MRI data. The initial uniformity and the evolution of voids during the drained triaxial compression test were investigated. The presented results provided a critical assessment of the specimen reconstitution techniques and a better understanding on the mechanisms of the localized deformation and failure of granular soils.

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Oorspronkelijke releasedatum: 31 juli 2009

Aantal pagina's: 142

Hoofdauteur: Changhua Hu

Hoofduitgeverij: Vdm Verlag

Product breedte: 152 mm

Product hoogte: 8 mm

Product lengte: 229 mm

Verpakking breedte: 152 mm

Verpakking hoogte: 8 mm

Verpakking lengte: 229 mm

Verpakkingsgewicht: 218 g

EAN: 9783639178913

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