Experimental study on liquefaction characteristics of marine fine-grained sand based on critical state theory

被引：0
作者：
Cai S. [1 ]
Tang Y. [1 ]
Guan Y. [1 ]
机构：
[1] Geotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing
来源：
Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering | 2023年 / 45卷
关键词：
coupled axial-torsional cyclic shear test; critical state; cyclic resistance ratio; fine-grained sand; liquefaction;
D O I：
10.11779/CJGE2023S10026
中图分类号：
学科分类号：
摘要：
The consolidated undrained triaxial shear tests and coupled axial-torsional cyclic shear tests are conducted using the marine fine-grained sand to study the correlation between the critical state parameter and the liquefaction characteristics based on the critical state theory. The tests results show a linear correlation between the critical void ratio and the normalized effective normal stress. The results of the coupled axial-torsional cyclic shear tests show that the cycle number for liquefaction, NL, decreases with the increasing state parameter, ψ, for a certain cyclic resistance ratio. Finally, an exponential function for expressing the relationship between NL and ψ is proposed. © 2023 Chinese Society of Civil Engineering. All rights reserved.
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页码：63 / 66
页数：3
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