CAJ | 학술논문

为了研究软土次固结和速率敏感性的内在联系,基于过应力式弹黏塑性本构模型,推导出一个理论关系式,定量地建立了次固结系数和率敏感参数的关系.对天津某地典型软黏土进行了一系列次固结试验和变速固结不排水三轴压缩试验,分析了次固结系数和率敏感参数,验证了所推导的理论关系式的适用性.
위료연구연토차고결화속솔민감성적내재련계,기우과응력식탄점소성본구모형,추도출일개이론관계식,정량지건립료차고결계수화솔민감삼수적관계.대천진모지전형연점토진행료일계렬차고결시험화변속고결불배수삼축압축시험,분석료차고결계수화솔민감삼수,험증료소추도적이론관계식적괄용성.
This paper is to study the inherent relationship between secondary consolidation and rate sensitivity of soft clay.Based on an overstress-type elasto-viscoplasticity constitutive model .a theoretical equation was deduced to quantify the cor-relation between secondary consolidation coefficient and rate sensitivity parameter. A series of laboratory tests on the soft clay of Tianjin were performed,including consolidated isotropic undrained(CIU)triaxial compression tests with changed strain-rates and long-term secondary consolidation tests. The corresponding parameters are analysed directly from laboratory tests. The laboratory results verifies the applicability of the deduced theoretical equation.