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中文摘要：
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。
英文摘要：
Asymptotic State（AS） model for normally consolidated clay was extended to asymptotic state model for K0 consolidated clays. The formulation of partially coupled parameter was deduced under triaxial compression condition. A function of partially coupled parameter associated with Lode＇ s angle was proposed. Modified Cam-clay （MCC） model and AS model for Ko consolidated clay were applied to predict stress-strain relationship under triaxial compression and extension conditions. The comparison between predicted results showed that AS model for K0 consolidated clay was more reasonable in describing constitutive relations.
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