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

Autor: Huiyuan Wang, Peng Zhao, Xiaozhao Li, Xue Wang, Xia Bian
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Applied Sciences, Vol 14, Iss 3, p 1072 (2024)
Druh dokumentu: article
ISSN: 2076-3417
DOI: 10.3390/app14031072
Popis: 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.
Databáze: Directory of Open Access Journals