Soil Parameters' Influence on the Mechanical Behaviour considering Boundary Condition

2019 5th International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Xu, Binbin^1^2^3^4 ; Zhang, Naishou^2

Tianjin Port Engineering Institute Ltd. of CCCC, Tianjin, China^1

CCCC First Harbour Engineering Co. Ltd., Tianjin, China^2

Key Lab. of Geotechnical Engineering of Tianjin, Tianjin, China^3

Key Lab. of Geotechnical Engineering, Ministry of Communication, Tianjin, China^4

关键词: Deviator stress;    Experiment equipment;    Mechanical behaviour;    Numerical calculation;    Numerical results;    Tri-axial compression tests;    Undrained conditions;    Unloading process;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/295/4/042061/pdf
DOI  :  10.1088/1755-1315/295/4/042061

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In this paper, how to determine the soil parameters and initial values employed in the numerical calculation using experimental results is talked over in detail. The results of the triaxial compression tests and one-dimensional tests for undisturbed and disturbed samples are utilized step by step to modify the numerical results. It is found that there are several steps to model the whole procedure of sampling from the ground to the experiment equipment. Therefore, the step of taking the soil samples out from underground, which is assumed to be under the undrained condition accompanying with unloading process until the deviator stress becomes zero, is always ignored in the research.