Triaxial creep test with non-drainage of soft clay in Zhanjiang area was systematically carried out,the complete creep curves were achieved under different confining pressures and different stress states, both creep curves of staged loading and creep equal-time curves were established by linear Boltzmann overlapping principle as well as Coordinate Translation. Broken line form of creep equal-time curves showed specific creep properties of soft-soil in Zhanjiang, the stress-strain relationship of the empirical model in this paper was approximated by a linear function generally, and the strain-time relationship was represented by a hyperbolic function, while Mesri model is still applicable with low deviatoric stress. Analysis showed that this empirical creep equation was more suitable for simulating the test data comparing to Singh-Mitchell model and Mesri model, describing and predicting the creep properties of the soft clay in Zhanjiang comprehensively.%针对湛江软粘土开展了系统的三轴固结不排水蠕变试验.得到不同围压、不同应力加载等级下的全过程蠕变曲线,进而通过线性的Boltzmann叠加原理,采用"坐标平移法"得到分别加载下的蠕变曲线和蠕变等时曲线,蠕变等时曲线的折线形式说明湛江软粘土具有较为特殊的蠕变特性,故文中经验模型中的应力-应变关系在通常情况下采用线性函数,应变-时间关系采用双曲线函数形式,而在偏应力较低时采用Mesri模型.通过分析和对比,发现该蠕变方程较Singh-Mitchell模型、Mesri模型更适应试验数据,能够较为全面地反映和预测该软粘土的蠕变特性.
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