A TRY TO GIVE A UNIFIED DESCRIPTION OF TOYOURA SAND

SOILS AND FOUNDATIONS

YOUNGJI JIN¹  FENG ZHANG¹  BIN YE² 

[1] Department of Civil Engineering, Nagoya Institute of Technology;Department of Geotechnical Engineering, Tongji University

关键词: anisotropy;    constitutive model;    overconsolidation;    structure of soil;    Toyoura sand;   

DOI  :  10.3208/sandf.50.679

学科分类：建筑学

来源: Japanese Geotechnical Society / Jiban Kogakkai

【 摘 要 】

References(32)In this paper, based on the model proposed by Zhang et al., 2007, a miner modification for the evolution equation of overconsolidation is carried out at first and then a unique description of the overall mechanical behaviors of Toyoura Standard Sand (TSS), a typical clean sand, was conducted, in which the eight parameters for describing TSS is kept constant no matter what kind of loadings or drainage conditions may be. In the theoretical simulation, based on conventional drained triaxial compression tests and undrained triaxial cyclic loading tests. the material parameters of TSS are determined. By using the uniquely determined material parameters, other tests under different loadings and drainage conditions are simulated by the constitutive model. The capability of the model to describe uniquely the overall behaviors of the sand under different drainage conditions and different loadings with one set of fixed parameters is verified.

【 授权许可】

Unknown