摘要
本文从应力历史和应力路径的观点出发。在大量的砂土排水试验的基础上,建立了一种描述砂土应力应变和体积变化的方法。根据一种应力应变双曲线关系的改进形式,对等围压条件下轴向压缩和轴向拉伸两类试验的应力应变双曲线关系随固结路径的变化规律进行了讨论。所建立的侧向应变与轴向应变间的关系能够对三轴试验中的体积变化进行符合试验情况的描述。
From the viewpoints of stress history and stress path, a method of describing the stress-strain-volume change behaviour of sand is established using a large quantity of drained triaxial tests of saturated sand. A modified form of hyperbolic relationship is used to describe the stress-strain behaviour of sand subjected to both coat pression and extension stress paths with different consolidation history. The change of hyperbolic parameters with consolidation history and stress path is discussed. It is shown that the observed volume change in tests can be predicted accurately with the proposed relationship between lateral and axial strain.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
1989年第4期17-25,共9页
Chinese Journal of Geotechnical Engineering
