摘要
本文结合粉土着重研究复杂应力路径下，土的应力～应变～体变特性。提出考虑土的应变软化、剪胀（剪缩）性和应力路径影响的非线性弹性模型。通过试验成果验证，分析模型的适用性。
Fly-ash is treated with the studies of suess-strain-Volume change characteristic of soils.Suggest the nonlinear elastic Constilutive model taking into the account of strain-softening,shear dilatancy(shrinkage)properties and stress path.Analyze the suitability of model verified by test results.
关键词
应变软化
应力路径
应力比
本构模型
土
strain-softening,shear dilatanay(shrinkage),stress-path,stress-ratio,constitutive model
