不同压实度下粉土的三轴压缩试验研究

摘要

The relationship between compaction degree and shear strength of silt soil is studied by triaxial compression test.The variation relationship different between compaction degree,cohesion and internal friction angle is also discussed.The results show that the shear strength is proportional to compaction under the same confining pressure,while it is in inverse proportion shear strength to confining pressure under the same compaction degree.The cohesion force is decreasing and the internal friction angle is increasing while the compaction degree is increasing.%通过三轴压缩试验对黄河粉土的压实度与抗剪强度关系进行了探讨,并分析了不同压实度与土的内聚力和内摩擦角间的变化关系,研究表明在相同的围压下,抗剪强度与压实度成正比,而在相同的压实度下,抗剪强度与围压成反比,且随着压实度的提高,内聚力逐渐降低而内摩擦角则逐渐增大。