Evolution of Meso-Structure of Intact Loess during Wetting

Xiang Wei Fang; Chun Ni Shen; Pei Jiang Cheng; Long Wang

doi:10.4028/www.scientific.net/AMM.204-208.188

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 204-208Evolution of Meso-Structure of Intact Loess during...

Evolution of Meso-Structure of Intact Loess during Wetting

Abstract:

To study the evolution of meso-structure of unsaturated intact loess during wetting, a series of CT-triaxial-collapse tests were conducted using CT-multi-function triaxial apparatus. The distinct CT images and detailed CT data were attained nondestructively during wetting. A parameter and an evolution variable which characterized evolution of meso-structure were defined based CT data. An equation describing the evolution of structure during wetting was proposed. The equation reflected the influences of net cell stress, deviatoric stress and suction on the evolution of meso-structure. In the equation, volumetric strain, deviatoric strain and incremental degree of saturation are included.

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Periodical:

Applied Mechanics and Materials (Volumes 204-208)

Pages:

188-191

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.204-208.188

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Online since:

October 2012

Authors:

Xiang Wei Fang, Chun Ni Shen, Pei Jiang Cheng, Long Wang

Keywords:

CT, Evolution, Intact Loess, Meso-Structure, Wetting

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