A Study on the Softening Shear Model of the Energy Pile-Soil Contact Surface

被引：1
|
作者：
Wang, Huiyuan [1 ]
Zhao, Peng [2 ,3 ]
Li, Xiaozhao [2 ,3 ]
Wang, Xue [2 ]
Bian, Xia [3 ]
机构：
[1] China Univ Min & Technol, Sch Mech & Civil Engn, Xuzhou 221116, Peoples R China
[2] China Univ Min & Technol, State Key Lab Intelligent Construct & Hlth Operat, Xuzhou 221116, Peoples R China
[3] Yunlong Lake Lab Deep Underground Sci & Engn, Xuzhou 221116, Peoples R China
来源：
APPLIED SCIENCES-BASEL | 2024年 / 14卷 / 03期
关键词：
energy pile; finite numerical model; softening shear model; heat exchange characteristics; mechanical response; LOAD-TRANSFER; STRUCTURE INTERFACE; BEHAVIOR; BEARING;
D O I：
10.3390/app14031072
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this paper, a finite element numerical model of thermal-hydro-mechanical of energy piles under multi-layer geological conditions was established, and field tests of ultra-long energy pile (1000-mm-diameter, 44-m-long) were carried out to reveal the temperature distribution and mechanical properties of energy pile under typical working conditions. Based on the analytical results, a softening shear model of the energy-soil interface under the condition of large shear displacement was proposed with the load transfer method, and the reliability of the model was verified. The model can simulate the shear-displacement relationship of the pile-soil interface under different geological conditions.
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页数：20
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