Undrained shear behaviors of reconstituted Wenzhou clay under different consolidation stress paths

作者：Shi Jian^*; Qian Sen; Zeng Ling Ling; Hong Zhen Shun

来源：Chinese Journal of Geotechnical Engineering, 2014, 36(9): 1674-1679.

DOI：10.11779/CJGE201409014

• Consolidated-undrained triaxial
• Consolidation path
• Consolidation stress
• Stress-strain relationships
• Undrained shear strength
• Undrained strength
• Void index
• Wenzhou

To investigate the effects of the initial conditions and stress states on the intrinsic undrained strength behaviors of reconstituted clay, a series of consolidated undrained triaxial compression tests are performed on reconstituted Wenzhou clay under different consolidation conditions. The undrained shear stress-strain relationship and undrained strength are investigated. The void index Iv and the undrained strength ratios Rsu *=Su/p′ with different mean effective stresses p′ are used to compare the undrained strength Su under different consolidation conditions with the Chandler intrinsic strength line ISuL. The results indicate that the undrained shear stress-strain curves change with the consolidation stress paths under the same mean effective stresses p′. The undrained shear strengths and undrained strength ratios Rsu *=Su/p′ are also greatly affected by the consolidation stress paths. When Su/p′=0.33, the relationship between the void index Iv and the undrained strength Su is identical to the Chandler intrinsic strength line ISuL.

• 出版日期2014
• 单位东南大学