새만금 준설모래의 비배수 거동 = Undrained Behavior on Saemangeum Dredged Sands

다국어 초록 (Multilingual Abstract)

The results of an experimental study on Saemangeum dredged sands are presented. Undrained triaxial compression tests were performed with three different initial relative densities, namely 18, 34, and 50%, intend to evaluate undrained behavior. All undrained triaxial compression tests were performed under static loading conditions. Undrained triaxial compression tests were exhibited complete static liquefaction, zero effective confining pressure and zero stress difference at lower confining pressures. As confining pressures were increased, the effective stress paths indicated increasing resistance to static liquefaction by showing increasing dilatant tendencies. The isotropic consolidation before shearing was identified as the likely cause of this behavior. The fines and larger particles create a particle structure with high compressibility at lower confining pressures. The effect of increasing the relative density was to increase the resistance of the sand against static liquefaction by making the sand more dilatant.