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考虑细观结构变化的原状Q3黄土变形和强度特性

Jia-gui LI,Zheng-han CHEN,Xue-feng HUANG

Journal of Logistical Engineering University（2010）

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Abstract
为研究结构性对非饱和原状Q3黄土变形和强度特性的影响,做了12个非饱和原状Q3黄土的CT-三轴侧向卸荷试验.在试验剪切过程中,利用CT机对试样进行跟踪扫描,共得到168张CT图像.基于试验数据建立了细观结构参数,并利用该参数来反映非饱和原状Q3黄土的变形和强度特性,从而得到能反映细观结构性影响的非线性应力-应变关系以及摩尔-库伦强度公式.
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Key words
unsaturated original Q3 loess,meso-structural parameter,stress-strain relationship,strength formula,CT-triaxial test with unloading confining pressure
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