Study on the Influence of Water Content on the Shear Behavior of the Soil–Structure Interface Under a Temperature Field
Energy piles are highly favored for their excellent, low energy consumption in providing heating for public residences. The temperature field changes the activity of the diffuse double electric layer (DEL) on the particle surface, thereby altering the distribution of the stress field in the soil and...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-12-01
|
| Series: | Buildings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-5309/15/1/1 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841549352360738816 |
|---|---|
| author | Jian Chen Hao Jiang Yongde Liu Yanting Wu Xuan Zhang Weidong Pan |
| author_facet | Jian Chen Hao Jiang Yongde Liu Yanting Wu Xuan Zhang Weidong Pan |
| author_sort | Jian Chen |
| collection | DOAJ |
| description | Energy piles are highly favored for their excellent, low energy consumption in providing heating for public residences. The temperature field changes the activity of the diffuse double electric layer (DEL) on the particle surface, thereby altering the distribution of the stress field in the soil and ultimately affecting the mechanical properties of the interface between the energy pile and the soil. Therefore, studying the influence of water content on the mechanical behavior of the soil–structure interface in the temperature field is crucial for energy pile safety. This study used a modified temperature-controlled direct shear apparatus to obtain the influence of water content and temperature on the shear behavior of the soil–structure interface. Then, the test results were analyzed and discussed. Finally, three results were obtained: (1) The water content of bentonite (<i>w</i><sub>bent</sub>) had a significant impact on the shear stress–shear displacement curve of the soil–structure interface; when the <i>w</i><sub>bent</sub> was less than the <i>w</i><sub>p</sub> of the bentonite, the <i>τ</i>-<i>l</i> curve exhibited a softening response, then displayed a hardening response. (2) The shear strength of the soil–structure interface gradually decreased with the increase of <i>w</i><sub>bent</sub>. (3) The shear strength of the soil–structure interface increased with increasing temperature under various <i>w</i><sub>bent</sub> and vertical loads. |
| format | Article |
| id | doaj-art-68aae7e62ee34164827d791cb12a79d1 |
| institution | Kabale University |
| issn | 2075-5309 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj-art-68aae7e62ee34164827d791cb12a79d12025-01-10T13:15:44ZengMDPI AGBuildings2075-53092024-12-01151110.3390/buildings15010001Study on the Influence of Water Content on the Shear Behavior of the Soil–Structure Interface Under a Temperature FieldJian Chen0Hao Jiang1Yongde Liu2Yanting Wu3Xuan Zhang4Weidong Pan5College of Railway Engineering, Guangzhou Railway Polytechnic, Guangzhou 511300, ChinaShanghai Municipal Engineering Design Institute (Group) Guangdong Co., Ltd., Foshan 528200, ChinaCollege of Railway Engineering, Guangzhou Railway Polytechnic, Guangzhou 511300, ChinaCollege of Railway Engineering, Guangzhou Railway Polytechnic, Guangzhou 511300, ChinaCollege of Railway Engineering, Guangzhou Railway Polytechnic, Guangzhou 511300, ChinaSchool of Civil Engineering & Transportation, South China University of Technology, Guangzhou 510641, ChinaEnergy piles are highly favored for their excellent, low energy consumption in providing heating for public residences. The temperature field changes the activity of the diffuse double electric layer (DEL) on the particle surface, thereby altering the distribution of the stress field in the soil and ultimately affecting the mechanical properties of the interface between the energy pile and the soil. Therefore, studying the influence of water content on the mechanical behavior of the soil–structure interface in the temperature field is crucial for energy pile safety. This study used a modified temperature-controlled direct shear apparatus to obtain the influence of water content and temperature on the shear behavior of the soil–structure interface. Then, the test results were analyzed and discussed. Finally, three results were obtained: (1) The water content of bentonite (<i>w</i><sub>bent</sub>) had a significant impact on the shear stress–shear displacement curve of the soil–structure interface; when the <i>w</i><sub>bent</sub> was less than the <i>w</i><sub>p</sub> of the bentonite, the <i>τ</i>-<i>l</i> curve exhibited a softening response, then displayed a hardening response. (2) The shear strength of the soil–structure interface gradually decreased with the increase of <i>w</i><sub>bent</sub>. (3) The shear strength of the soil–structure interface increased with increasing temperature under various <i>w</i><sub>bent</sub> and vertical loads.https://www.mdpi.com/2075-5309/15/1/1energy piletemperature fieldsoil–structure interfaceshear stresswater contenttemperature-controlled direct shear test |
| spellingShingle | Jian Chen Hao Jiang Yongde Liu Yanting Wu Xuan Zhang Weidong Pan Study on the Influence of Water Content on the Shear Behavior of the Soil–Structure Interface Under a Temperature Field Buildings energy pile temperature field soil–structure interface shear stress water content temperature-controlled direct shear test |
| title | Study on the Influence of Water Content on the Shear Behavior of the Soil–Structure Interface Under a Temperature Field |
| title_full | Study on the Influence of Water Content on the Shear Behavior of the Soil–Structure Interface Under a Temperature Field |
| title_fullStr | Study on the Influence of Water Content on the Shear Behavior of the Soil–Structure Interface Under a Temperature Field |
| title_full_unstemmed | Study on the Influence of Water Content on the Shear Behavior of the Soil–Structure Interface Under a Temperature Field |
| title_short | Study on the Influence of Water Content on the Shear Behavior of the Soil–Structure Interface Under a Temperature Field |
| title_sort | study on the influence of water content on the shear behavior of the soil structure interface under a temperature field |
| topic | energy pile temperature field soil–structure interface shear stress water content temperature-controlled direct shear test |
| url | https://www.mdpi.com/2075-5309/15/1/1 |
| work_keys_str_mv | AT jianchen studyontheinfluenceofwatercontentontheshearbehaviorofthesoilstructureinterfaceunderatemperaturefield AT haojiang studyontheinfluenceofwatercontentontheshearbehaviorofthesoilstructureinterfaceunderatemperaturefield AT yongdeliu studyontheinfluenceofwatercontentontheshearbehaviorofthesoilstructureinterfaceunderatemperaturefield AT yantingwu studyontheinfluenceofwatercontentontheshearbehaviorofthesoilstructureinterfaceunderatemperaturefield AT xuanzhang studyontheinfluenceofwatercontentontheshearbehaviorofthesoilstructureinterfaceunderatemperaturefield AT weidongpan studyontheinfluenceofwatercontentontheshearbehaviorofthesoilstructureinterfaceunderatemperaturefield |