摘要
通过原状软土样的等向固结和K0固结不排水三轴试验,分析讨论了软土的剪切强度、孔压以及有效应力路径特性。试验结果分析表明:软土的粉粒含量越高,其剪切强度越高,剪胀现象越明显;软土的有效应力路径随着粉粒含量的增加逐渐由椭圆弧型向"S"型过渡。
A set of isotropic and anisotropic consolidated-undrained triaxial test on undisturbed soft soils are conducted. The characteristics of shear strength, pore pressure and effective stress path are discussed. The test results indicate that the higher content of silt, the greater the shear strength, and the more obvious the dilatancy. The form of the effective stress path of soft soils converts from the elliptical arc to the s-shape gradually with the increase of silt content.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2013年第S2期825-828,共4页
Chinese Journal of Geotechnical Engineering
关键词
软土
三轴试验
颗粒级配
应力路径
soft soil
triaxial test
grain-size distribution
stress path
