The paper aims to investigate the destructuration effect on the time-dependent behaviour of soft structured clays.Viscosity coupled with destructuration is analysed based on experimental observations.A strain-rate bas...The paper aims to investigate the destructuration effect on the time-dependent behaviour of soft structured clays.Viscosity coupled with destructuration is analysed based on experimental observations.A strain-rate based model is developed to de-scribe the mechanical behaviour for both unstructured and structured clays under one-dimensional loading.The advantage of the proposed model lies in the determination of model parameters in a straightforward way,which leads to an easy use of the model for practical problems.Coupled with consolidation,the model is used to simulate oedometer tests at constant rate of strain and long-term creep oedometer tests on two structured clays.All comparisons between predicted and measured results demonstrate that the proposed model can reasonably describe the effect of destructuration on the time-dependent behaviour of soft structured clay under one-dimensional condition.Although the model is proposed for one-dimensional analysis,it can be a good base for developing a more general 3D model.展开更多
文摘The paper aims to investigate the destructuration effect on the time-dependent behaviour of soft structured clays.Viscosity coupled with destructuration is analysed based on experimental observations.A strain-rate based model is developed to de-scribe the mechanical behaviour for both unstructured and structured clays under one-dimensional loading.The advantage of the proposed model lies in the determination of model parameters in a straightforward way,which leads to an easy use of the model for practical problems.Coupled with consolidation,the model is used to simulate oedometer tests at constant rate of strain and long-term creep oedometer tests on two structured clays.All comparisons between predicted and measured results demonstrate that the proposed model can reasonably describe the effect of destructuration on the time-dependent behaviour of soft structured clay under one-dimensional condition.Although the model is proposed for one-dimensional analysis,it can be a good base for developing a more general 3D model.
