In Situ Test Research on Friction Resistance of Self-Anchored Test Pile
The traditional static load test method has been considered as the most direct and reliable method to determine the bearing capacity of single pile, but it has some disadvantages, such as inconvenient operation, laborious test, high cost, and being time-consuming. In this paper, a new type of pile t...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/1785727 |
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| author | Chi Chen Hailong Ma Bilian Yang |
| author_facet | Chi Chen Hailong Ma Bilian Yang |
| author_sort | Chi Chen |
| collection | DOAJ |
| description | The traditional static load test method has been considered as the most direct and reliable method to determine the bearing capacity of single pile, but it has some disadvantages, such as inconvenient operation, laborious test, high cost, and being time-consuming. In this paper, a new type of pile testing method, self-anchored pile testing method, was proposed, and the in situ test was carried out for the first time. This method allows the upper and lower piles to provide force to each other and does not occupy other construction spaces. It had the advantages of simple operation and being economical and practical. Based on the Q-w curve, axial force distribution curve, and hyperbolic function model of load transfer, this paper studied the evolution law of friction of self-anchored test pile and the load transfer process of self-anchored test pile. The results show that the load transfer process of self-anchored pile-soil interface can be divided into three stages: elastic, elastic-plastic, and limit state. The friction of the upper and lower piles starts from the bottom of each pile and then gradually increases. The soil around the upper and lower piles gradually undergoes nonlinear deformation and shear failure, and the pile soil reaches the yield state. By analyzing the hyperbolic function model of load transfer, it shows that the hyperbolic function model can be better applied to the self-anchored test pile, which has reference value for the selection of the function model of self-anchored test pile in the future. |
| format | Article |
| id | doaj-art-394081665bad4fe8b93424a47b37edd3 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-394081665bad4fe8b93424a47b37edd32025-02-03T01:24:54ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/17857271785727In Situ Test Research on Friction Resistance of Self-Anchored Test PileChi Chen0Hailong Ma1Bilian Yang2Department of Civil Engineering and Architecture, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaDepartment of Civil Engineering and Architecture, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaDepartment of Civil Engineering and Architecture, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaThe traditional static load test method has been considered as the most direct and reliable method to determine the bearing capacity of single pile, but it has some disadvantages, such as inconvenient operation, laborious test, high cost, and being time-consuming. In this paper, a new type of pile testing method, self-anchored pile testing method, was proposed, and the in situ test was carried out for the first time. This method allows the upper and lower piles to provide force to each other and does not occupy other construction spaces. It had the advantages of simple operation and being economical and practical. Based on the Q-w curve, axial force distribution curve, and hyperbolic function model of load transfer, this paper studied the evolution law of friction of self-anchored test pile and the load transfer process of self-anchored test pile. The results show that the load transfer process of self-anchored pile-soil interface can be divided into three stages: elastic, elastic-plastic, and limit state. The friction of the upper and lower piles starts from the bottom of each pile and then gradually increases. The soil around the upper and lower piles gradually undergoes nonlinear deformation and shear failure, and the pile soil reaches the yield state. By analyzing the hyperbolic function model of load transfer, it shows that the hyperbolic function model can be better applied to the self-anchored test pile, which has reference value for the selection of the function model of self-anchored test pile in the future.http://dx.doi.org/10.1155/2021/1785727 |
| spellingShingle | Chi Chen Hailong Ma Bilian Yang In Situ Test Research on Friction Resistance of Self-Anchored Test Pile Advances in Civil Engineering |
| title | In Situ Test Research on Friction Resistance of Self-Anchored Test Pile |
| title_full | In Situ Test Research on Friction Resistance of Self-Anchored Test Pile |
| title_fullStr | In Situ Test Research on Friction Resistance of Self-Anchored Test Pile |
| title_full_unstemmed | In Situ Test Research on Friction Resistance of Self-Anchored Test Pile |
| title_short | In Situ Test Research on Friction Resistance of Self-Anchored Test Pile |
| title_sort | in situ test research on friction resistance of self anchored test pile |
| url | http://dx.doi.org/10.1155/2021/1785727 |
| work_keys_str_mv | AT chichen insitutestresearchonfrictionresistanceofselfanchoredtestpile AT hailongma insitutestresearchonfrictionresistanceofselfanchoredtestpile AT bilianyang insitutestresearchonfrictionresistanceofselfanchoredtestpile |