Title: Analysis on structure and suction property of loess under tri-axial compression
Abstract: The structural property of loess is related to the suction of its fabric, which improves the stability of soil structure. The shear strength of loess increases with suction and cementation of particles of loess, which can't be reflected by suction of unsaturated soils. The changing laws of suction and stress structural parameter with shear strain are analyzed by the triaxial tests of unsaturated intact and remolded loess. The structural property of loess reveals the peak value in the low strain condition, and after that, along with the development of the shearing deformation, the loess structural property weakens gradually. The suction is growing unceasingly with the development of the shearing deformation. The suction of intact loess is smaller than the remolded loess. Comparing structural parameter with the suction of loess, the structure effect weakens with shearing deformation and the suction growing unceasingly. Furthermore, the structural property of loess is one of the important mechanical properties. The suction of unsaturated soil reinforces the shear strength of soil particles structure, but it can't reflect the loess' s structural property. The structural parameters can reflect the change of loess structure.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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