Non-coaxiality of sand under bi-directional shear loading

被引：1
|
作者：
Li, Yao [1 ]
Yang, Yunming [2 ]
机构：
[1] Changan Univ, Sch Highway, Xian, Shaanxi, Peoples R China
[2] Univ Nottingham, Dept Civil Engn, Int Doctoral Innovat Ctr, Ningbo, Zhejiang, Peoples R China
来源：
ROYAL SOCIETY OPEN SCIENCE | 2018年 / 5卷 / 05期
基金：
中国国家自然科学基金; 英国工程与自然科学研究理事会;
关键词：
non-coaxiality; simple shear test; sand; TUNNEL; MODEL;
D O I：
10.1098/rsos.172076
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
This study aims to investigate the effect of consolidation shear stress magnitude on the shear behaviour and non-coaxiality of soils. In previous drained bi-directional simple shear test on Leighton Buzzard sand, it is showed that the level of non-coaxiality, which is indicated by the angle difference between the principal axes of stresses and the corresponding principal axes of strain rate tensors, is increased by increasing angle difference between the direction of consolidation shear stress and secondary shearing. This paper further investigated the relation and includes results with higher consolidation shear stresses. Results agree with the previous relation, and further showed that increasing consolidation shear stresses decreased the level of non-coaxiality in tests with angle difference between 0 degrees and 90 degrees, and increased the level of non-coaxiality in tests with angle difference between 90 degrees and 180 degrees.
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收藏
页数：8
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