岩土力学Issue(9)：2507-2514,8.
粗粒土CT三轴流变试验研究
CT triaxial rheological test on coarse-grained soils
摘要
Abstract
Some earth and rockfill dams have significant later stage deformations after constructions, which are closely related to the rheology of coarse-grained soils. The study of rheology for coarse-grained soils mainly focuses on mechanical tests and constitutive models. However, particle movement of coarse-grained soils in rheological test is not well evaluated. The CT triaxial rheological test of a single grading aluminite is conducted to investigate the particle movement of coarse-grained soils. The test results show that the rheological process is an adjustment process of particle position from unstable structure state to stable structure state for particles in coarse-grained soils. The rheological process will not stop until all particles reach the minimum energy state. No particles move, rotate, and break under the rheological steady state. The investigation of particle movement for coarse-grained soils contributes to the understanding of rheological behavior of coarse-grained soils, and also helps to provide reference to engineering application.关键词
粗粒土/CT试验/三轴试验/流变/颗粒运动/变形机制/应力-应变关系/细观组构Key words
coarse-grained soil/CT test/triaxial test/rheology/particle movement/deformation mechanism/stress-strain relationship/mesoscopic fabric分类
建筑与水利引用本文复制引用
姜景山,程展林,左永振,丁红顺..粗粒土CT三轴流变试验研究[J].岩土力学,2014,(9):2507-2514,8.基金项目
长江科学院开放研究基金资助项目（No.CKWV2013205/KY）；南京工程学院校级科研基金项目资助（No.YKJ201330）。 （）
