论文部分内容阅读
通过压缩试验、无侧限抗压强度试验以及三轴固结不排水试验,对海积软土初始各向异性影响土体强度与变形进行了试验研究。结果表明:在一维压缩试验中,海积软土垂直方向的压缩变形最小,水平方向的变形最大,而45°斜方向的变形介于两者之间;在三轴压缩试验中,海积软土的应力-应变关系都呈现应变硬化,垂直方向的峰值强度最强,45°斜方向最弱,水平方向的强度介于两者之间。在此基础上,对其进行了机理分析,研究成果对工程实践有一定的指导意义。
Through the compression test, the unconfined compressive strength test and the three-axis consolidation undrained test, the initial anisotropy of the soft soil affected the strength and deformation of the soil. The results show that in the one-dimensional compression test, the vertical soft clay has the smallest compressive deformation in the vertical direction and the largest deformation in the horizontal direction, while the deformation in the 45 ° oblique direction is between the two. In the triaxial compression test, The stress-strain relationship of soft soil shows strain hardening, the peak intensity in the vertical direction is strongest, the weakest direction is 45 °, and the strength in the horizontal direction is between the two. On this basis, the mechanism analysis is carried out and the research results have certain guiding significance to engineering practice.