The Structural Damage Properties of Loess under Loading and Moistening

2018 2nd International Workshop on Renewable Energy and Development

能源学;经济学

Luo, A.Z.^1 ; Shao, S.J.^2

School of Civil and Architecture Engineering, Guizhou University of Engineering Science, Bijie, GUIZHOU

551700, China^1

Institute of Geotechnical Engineering, Xi'An University of Technology, Xi'an, Shaanxi

710048, China^2

关键词: Collapsible loess;    Deformation properties;    Development process;    Secondary structures;    Shearing deformation;    Stress strain state;    Stress-strain equations;    Structural damages;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/153/2/022008/pdf
DOI  :  10.1088/1755-1315/153/2/022008

来源: IOP

【 摘 要 】

Based on the deformation properties of intact loess under the tri-axial loading and moistening, and starting from the loess structural damage and development caused by the moistening, iso-directional consolidation as well as moistening and shearing deformation, this paper seeks to obtain the variation with the stress-strain curve initial tangential modulus to reflect to intact structure damage and the secondary structure development by the moistening and consolidation as well as reflect to the moist shearing structure damage and the secondary structure development by the ideal hyperbola variation of the iso-structure stress-strain corresponding to the different stress-strain states during the process of shearing deformation, in which the whole development process are revealed, the intact loess structure varies are derived from the action of loading and moistening. Meanwhile, this paper proposed the structural damage property parameters of the intact structure damage development law that can completely the collapsible loess under the varying conditions of water content fields and stress fields; and they are used to establish the stress-strain equation for the structural loess.