本文通过对桂林粘土的固结不排水三轴剪切试验,基于典型的双曲线方程,从理论上推导了为实现应力—应变方程归一化而必须满足的归一化条件,并提出了用主应力差渐近值作为标准归一化因子。同时,运用标准归一化因子,建立了桂林粘土固结不排水条件下应力—应变特性的归一化方程。利用求得的归一化方程对不同围压下的应力—应变关系进行归一化分析,并与试验实测数据进行比较,可以得出用主应力差渐近值作为标准归一化因子,粘土的应力—应变特性归一化程度高,可以很好的预测出不同围压下的应力—应变关系。 Based on the undrained triaxial shear tests of clay in Guilin, based on the typical hyperbolic equations, the normalized conditions that must be satisfied in order to normalize the stress-strain equation are derived theoretically. The asymptotic value of the principal stress difference is taken as the standard normalization factor. At the same time, using the standard normalization factor, the normalized equation of stress-strain behavior under the undrained condition of clay consolidation in Guilin was established. Using the normalized equations obtained to normalize the stress-strain relationship under different confining pressures and compare them with the experimental data, we can draw the standard stress factor asymptotic value as the standard normalization factor, clay The stress-strain characteristics of the high degree of normalization, can be well predicted under different confining pressure stress-strain relationship.