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原状饱和黄土由于特殊的物理性质,其应力-应变关系具有一定的离散性。通过对原状饱和黄土的固结不排水剪试验得到其应力-应变关系,并对其进行归一化处理。归一化处理中分别选围压σ_3、σ_3~n、主应力极限值(σ_1-σ_3)_(ult)作为归一化因子,结果表明:原状饱和黄土以主应力极限值(σ_1-σ_3)_(ult)为归一化因子的归一化效果较好。对原状黄土的归一化研究可以应用于更多的实际工程的室内土工试验中,以寻求对原状土更好的分析方法。
The original saturated loess due to the special physical properties, the stress-strain relationship has a certain degree of dispersion. The stress-strain relationship of undisturbed intact saturated loess with undrained shear was obtained and normalized. In the normalization process, the confining pressure σ_3, σ_3 ~ n and the principal stress limit (σ_1-σ_3) _ (ult) are normalized respectively. The results show that the principal stress limit (σ_1 -σ_3) _ (ult) for the normalization factor normalization effect is better. The normalization of undisturbed loess can be applied to more practical engineering indoor geotechnical tests in order to seek a better analytical method for undisturbed soil.