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

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 properti...

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Main Authors: Huiyuan Wang, Peng Zhao, Xiaozhao Li, Xue Wang, Xia Bian
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/14/3/1072
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author Huiyuan Wang
Peng Zhao
Xiaozhao Li
Xue Wang
Xia Bian
author_facet Huiyuan Wang
Peng Zhao
Xiaozhao Li
Xue Wang
Xia Bian
author_sort Huiyuan Wang
collection DOAJ
description 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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spelling doaj.art-195a84c3103344499fb48c513df123492024-02-09T15:07:37ZengMDPI AGApplied Sciences2076-34172024-01-01143107210.3390/app14031072A Study on the Softening Shear Model of the Energy Pile–Soil Contact SurfaceHuiyuan Wang0Peng Zhao1Xiaozhao Li2Xue Wang3Xia Bian4School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaState Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaState Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaState Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaYunlong Lake Laboratory of Deep Underground Science and Engineering, Xuzhou 221006, ChinaIn 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.https://www.mdpi.com/2076-3417/14/3/1072energy pilefinite numerical modelsoftening shear modelheat exchange characteristicsmechanical response
spellingShingle Huiyuan Wang
Peng Zhao
Xiaozhao Li
Xue Wang
Xia Bian
A Study on the Softening Shear Model of the Energy Pile–Soil Contact Surface
Applied Sciences
energy pile
finite numerical model
softening shear model
heat exchange characteristics
mechanical response
title A Study on the Softening Shear Model of the Energy Pile–Soil Contact Surface
title_full A Study on the Softening Shear Model of the Energy Pile–Soil Contact Surface
title_fullStr A Study on the Softening Shear Model of the Energy Pile–Soil Contact Surface
title_full_unstemmed A Study on the Softening Shear Model of the Energy Pile–Soil Contact Surface
title_short A Study on the Softening Shear Model of the Energy Pile–Soil Contact Surface
title_sort study on the softening shear model of the energy pile soil contact surface
topic energy pile
finite numerical model
softening shear model
heat exchange characteristics
mechanical response
url https://www.mdpi.com/2076-3417/14/3/1072
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