Study on long-term dynamic pore pressure model of soft clay considering temperature effect

被引：0
|
作者：
Ding X. [1 ,2 ]
Liu G. [1 ]
Chen H. [1 ]
Zhu Y. [1 ]
Xie Q. [1 ]
机构：
[1] Institution of Geotechnical Engineering, Ningbo University, Ningbo
[2] Shanghai Civil Engineering Co. Ltd. of CREC, Shanghai
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2020年 / 39卷 / 11期
关键词：
Dynamic pore pressure; Prediction model; Soft clay; Temperature;
D O I：
10.13465/j.cnki.jvs.2020.11.016
中图分类号：
学科分类号：
摘要：
Taking the ④ layers of silty clay in Ningbo Rail Transit as the object, the dynamic triaxial tests were carried out under the action of different temperature, dynamic stress, initial deviatoric stress and confining pressure. The effects of different test conditions on the pore pressure was obtained. On this basis, the existing pore pressure-vibration times hyperbolic model was improved. Firstly, the dynamic pore pressure-vibration number model considering the effect of temperature was established. Secondly, the model was verified by the pore pressure test results, and the model's parameters under different test conditions were given. Finally, based on the dynamic equilibrium assumption, a normalized pore pressure prediction model considering the temperature influence under long-term dynamic loading was presented. The prediction value of model is in good agreement with the experimental one, which can provide theoretical basis for rail transit design and construction. © 2020, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：123 / 128
页数：5
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