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在改进的非饱和三轴仪上针对洛阳地区非饱和土开展强度试验研究,结果表明:粘聚力趋势角相对内摩擦角有更高的变化率、更大的变化范围,似粘聚力和随着饱和度的降低而快速增长。全面地考虑土中力学因素及土体结构影响的强度、变形理论研究是目前非饱和土土力学理论研究领域中的难点,对此用饱和度作控制变量建立了基于饱和度的非饱和土广义双变量强度理论,研究表明这一与以往理论建立思想有所不同的尝试对考虑土中力学因素、土体结构性的影响是有效的。
The strength test of unsaturated soil in Luoyang area was carried out on an improved non-triaxial instrument. The results show that the trend angle of cohesion has a higher rate of change with respect to the internal friction angle, the larger variation range, cohesion and Grows rapidly with decreasing saturation. Comprehensively considering the strength of soil mechanics and the influence of soil structure, the study of deformation theory is a difficult point in the current research field of unsaturated soil mechanics. By using saturation as a control variable, the unsaturated soil based on saturation is generalized The theory of bivariate strength shows that this attempt, which is different from previous theories, is effective in considering the influence of soil mechanics and soil structure.