【摘要】 为对比分析不同细粒含量(小于0.075 mm)下粗细粒混合土的力学特性,文章进行了3组不同细粒含量的粗细粒混合土的固结排水三轴压缩试验,并分析了细粒含量对混合土的应力-应变和变形的影响。试验发现:相同围压下,对于混合土中细粒含量较高的土样具有更低的应力水平;低围压下,随着偏应力的增加土样的体积开始收缩,且细粒含量越高,收缩越慢。更多还原

【Abstract】 the consolidated drained triaxial compression tests on three groups(with different fine-particle contents) of soils mixed with fine and coarse particles are conducted to compare and analyze the mechanical characteristics of the soils mixed with fine and coarse particles in condition of three different fine-particle(grain size smaller than 0.075 mm) contents.Furthermore,affects by the fine-particle contents on concrete stress-strain and deformation are studied.The tests present that in condition of the same surrounding pressure,soils with high content of fine particles is with lower stress;in condition of lower surrounding pressure,soil volume starts contracting with increase of slanting stress.The higher the fine-particle content is,the slower the soil contracts.更多还原