岩土工程学报2012，Vol.34Issue(7)：1250-1255,6.
应力路径对天然沉积土压缩特性影响的试验研究
Experimental study on different compression behaviors of natural clays caused by various stress paths
摘要
Abstract
How to assess the effect of stress path on compression behaviors of natural soils is an important issue in geotechnical engineering practice. A series of GDS triaxial compression tests under different stress paths are performed. The change in compression behaviors under different stress paths is investigated. It is found that the mean yield effective stress and the compression index increase with the increase in stress ratio to the maximum and then decrease with the increase in stress ratio. The comparison of yield behaviors between triaxial compression tests and one-dimensional compression tests indicates that the coefficient of earth pressure at rest increases with stress level during the yielding of compression, and becomes constant when the stress level is in the post-yield state.关键词
天然沉积土/压缩性状/应力路径/各向异性/结构屈服Key words
natural sedimentary clay/compression behavior/stress path/anisotropy/yield分类
建筑与水利引用本文复制引用
曾玲玲,洪振舜,刘松玉,陈福全..应力路径对天然沉积土压缩特性影响的试验研究[J].岩土工程学报,2012,34(7):1250-1255,6.基金项目
国家自然科学基金项目 （）
