TIME EFFECT OF PILE-SOIL INTERACTION AND ITS ELASTIC-VISCOPLASTIC CONSTITUTIVE MODEL
Pile-soil interaction is considered to be one of the most important problems in the study of the mechanical behaviour of pile foundation. In this paper, the lateral friction resistance and pile-soil relative displacement of bridge piles in deep soft soils are monitored for an extended period by usin...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Faculty of Mining, Geology and Petroleum Engineering
2019-01-01
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| Series: | Rudarsko-geološko-naftni Zbornik |
| Subjects: | |
| Online Access: | https://hrcak.srce.hr/file/315594 |
| _version_ | 1797207582142627840 |
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| author | Hong-quan Li Sheng-yang Feng Li-min Wei Zhi Chen |
| author_facet | Hong-quan Li Sheng-yang Feng Li-min Wei Zhi Chen |
| author_sort | Hong-quan Li |
| collection | DOAJ |
| description | Pile-soil interaction is considered to be one of the most important problems in the study of the mechanical behaviour of pile foundation. In this paper, the lateral friction resistance and pile-soil relative displacement of bridge piles in deep soft soils are monitored for an extended period by using concrete strain gauges that are embedded in the test pile. Field test results show that both the pile lateral frictional resistance and pile-soil relative displacement increase along with time, while the pile-soil interaction demonstrates a time effect. Therefore, an elastic-viscoplastic constitutive model must be established to better simulate the time-dependent mechanical behaviour of the pile-soil contact. Based on the Goodman model, we developed an elastic-viscoplastic interface constitutive model of the pile-soil interface into the FRIC subroutine through ABAQUS software, which is one of the most commonly used finite element analysis softwares in the world, to simulate a well-recorded pile test in deep soft soils. The calculated pile lateral frictional resistance and pile-soil relative displacement are close to the measured values, and the ability of the interface model to describe the changes in the shear stress-strain of the pile-soil interface along with time is validated. |
| first_indexed | 2024-04-24T09:25:12Z |
| format | Article |
| id | doaj.art-f02847a1c7e64f85a34498d9882931dc |
| institution | Directory Open Access Journal |
| issn | 0353-4529 1849-0409 |
| language | English |
| last_indexed | 2024-04-24T09:25:12Z |
| publishDate | 2019-01-01 |
| publisher | Faculty of Mining, Geology and Petroleum Engineering |
| record_format | Article |
| series | Rudarsko-geološko-naftni Zbornik |
| spelling | doaj.art-f02847a1c7e64f85a34498d9882931dc2024-04-15T15:18:30ZengFaculty of Mining, Geology and Petroleum EngineeringRudarsko-geološko-naftni Zbornik0353-45291849-04092019-01-0134111110.17794/rgn.2019.1.1TIME EFFECT OF PILE-SOIL INTERACTION AND ITS ELASTIC-VISCOPLASTIC CONSTITUTIVE MODELHong-quan Li0Sheng-yang Feng1Li-min Wei2Zhi Chen3School of Civil Engineering, Central South University, Changsha, ChinSchool of Environment and Safety Engineering, University of South China, Hengyang, ChinaSchool of Civil Engineering, Central South University, Changsha, ChinaSchool of Environment and Safety Engineering, University of South China, Hengyang, ChinaPile-soil interaction is considered to be one of the most important problems in the study of the mechanical behaviour of pile foundation. In this paper, the lateral friction resistance and pile-soil relative displacement of bridge piles in deep soft soils are monitored for an extended period by using concrete strain gauges that are embedded in the test pile. Field test results show that both the pile lateral frictional resistance and pile-soil relative displacement increase along with time, while the pile-soil interaction demonstrates a time effect. Therefore, an elastic-viscoplastic constitutive model must be established to better simulate the time-dependent mechanical behaviour of the pile-soil contact. Based on the Goodman model, we developed an elastic-viscoplastic interface constitutive model of the pile-soil interface into the FRIC subroutine through ABAQUS software, which is one of the most commonly used finite element analysis softwares in the world, to simulate a well-recorded pile test in deep soft soils. The calculated pile lateral frictional resistance and pile-soil relative displacement are close to the measured values, and the ability of the interface model to describe the changes in the shear stress-strain of the pile-soil interface along with time is validated.https://hrcak.srce.hr/file/315594pile-soil interactiontime effectelastic-viscoplastic constitutive modellateral friction resistancepile-soil relative displacement |
| spellingShingle | Hong-quan Li Sheng-yang Feng Li-min Wei Zhi Chen TIME EFFECT OF PILE-SOIL INTERACTION AND ITS ELASTIC-VISCOPLASTIC CONSTITUTIVE MODEL Rudarsko-geološko-naftni Zbornik pile-soil interaction time effect elastic-viscoplastic constitutive model lateral friction resistance pile-soil relative displacement |
| title | TIME EFFECT OF PILE-SOIL INTERACTION AND ITS ELASTIC-VISCOPLASTIC CONSTITUTIVE MODEL |
| title_full | TIME EFFECT OF PILE-SOIL INTERACTION AND ITS ELASTIC-VISCOPLASTIC CONSTITUTIVE MODEL |
| title_fullStr | TIME EFFECT OF PILE-SOIL INTERACTION AND ITS ELASTIC-VISCOPLASTIC CONSTITUTIVE MODEL |
| title_full_unstemmed | TIME EFFECT OF PILE-SOIL INTERACTION AND ITS ELASTIC-VISCOPLASTIC CONSTITUTIVE MODEL |
| title_short | TIME EFFECT OF PILE-SOIL INTERACTION AND ITS ELASTIC-VISCOPLASTIC CONSTITUTIVE MODEL |
| title_sort | time effect of pile soil interaction and its elastic viscoplastic constitutive model |
| topic | pile-soil interaction time effect elastic-viscoplastic constitutive model lateral friction resistance pile-soil relative displacement |
| url | https://hrcak.srce.hr/file/315594 |
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