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将正常固结土的渐近状态模型推广到K0固结土的渐近状态模型。推导出三轴压缩条件下耦合参量的求解公式,提出K0固结土的渐近状态模型中耦合参量关于应力Lode角的函数关系式,并用K0固结土的修正剑桥模型及K0固结土的渐近状态模型对多种黏土的三轴压缩、三轴伸长的试验结果进行预测对比。结果表明:K0固结土的渐近状态模型较K0固结土的修正剑桥模型能更合理地预测不同应力状态下K0固结土的应力-应变关系。
The asymptotic state model of normal consolidation soil is generalized to the asymptotic state model of K0 consolidated soil. The solving formula of the coupling parameters under triaxial compression is deduced. The function of the coupling parameter in the asymptotic state model of K0consolidated soil with respect to stress Lode angle is derived. The modified Cambridge model of K0consolidated soil and the consolidation of K0consolidated soil The asymptotic model predicts and compares the triaxial compression and triaxial elongation of various clays. The results show that the asymptotic model of K0 consolidated soil can predict the stress-strain relationship of K0 consolidated soil under different stress states more reasonably than the modified Cambridge model of K0 consolidated soil.