Mechanical Characteristics of Ningbo Marine Deposit Soft Clay under Different Stress Paths

Abstract:

Based on a series of consolidated-undrained stress path tests, the mechanical characteristics of Ningbo marine deposit soft clay under K₀ consolidation condition are systematically studied for different consolidation pressure, i.e.,60, 120 and 200kPa, in the GDS stress path triaxial system. Three kinds of stress path, i.e., DE (increase p), DG(constant p) and DF(reduce p), are carried out, and the characteristics of stress-axial strain relation, stress path and strength under different stress paths are compared. The test results show that the effective stress paths under consolidated-undrained shear are mainly related to initial consolidation, and the controlled shear mode has evident effect on the effective stress paths. In addition, the stress path has a certain influence on both the total stress and the effect stress strength.

• Periodical: Advanced Materials Research (Volumes 250-253)
• Pages: 2093-2097
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.250-253.2093
• Online since: May 2011
• Authors: Chen Bin, Jun Neng Ye, Gan Bin Liu
• Keywords: Mechanical Characteristic, Soft Clay, Stress Path

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