Study on the Influence of Pile Installation Disturbance on the Settlement of Composite Foundation
The disturbance generated during the pile installation process increased the compressibility of the soil between the piles, thereby causing additional settlement of the composite foundation. This study was conducted against the background of a highway soft foundation treatment project in Zhongshan....
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/2/602 |
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| author | Zhiwei Shao Baoning Hong Xin Liu Yunlong Yao Dongning Sun Guisen Wang |
| author_facet | Zhiwei Shao Baoning Hong Xin Liu Yunlong Yao Dongning Sun Guisen Wang |
| author_sort | Zhiwei Shao |
| collection | DOAJ |
| description | The disturbance generated during the pile installation process increased the compressibility of the soil between the piles, thereby causing additional settlement of the composite foundation. This study was conducted against the background of a highway soft foundation treatment project in Zhongshan. Before and after the installation of cement mixing piles (CMP) and pre-stressed high-strength concrete pipe pile (PHC), a piezocone penetration test (CPTU) was applied to assess the soil between the piles and quantify the disturbance. Based on this, the settlement of the composite foundation was predicted using the stress modified method and finite element method (FEM). The results indicate that under low embankment load (<2.5 m), the installation of PHC piles reduces the compression modulus of the soil between the piles by approximately 30%, while CMP results in a reduction of about 10%. Disturbance settlement from CMP and PHC piles accounts for approximately 3–10% and 17–28% of the total settlement, respectively. This impact diminishes with the increase of embankment load. |
| format | Article |
| id | doaj-art-0eddeb098a0b40ddb99746c498808ced |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-0eddeb098a0b40ddb99746c498808ced2025-01-24T13:20:00ZengMDPI AGApplied Sciences2076-34172025-01-0115260210.3390/app15020602Study on the Influence of Pile Installation Disturbance on the Settlement of Composite FoundationZhiwei Shao0Baoning Hong1Xin Liu2Yunlong Yao3Dongning Sun4Guisen Wang5Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, ChinaKey Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, ChinaKey Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, ChinaKey Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, ChinaNanchang Institute of Technology, School of Civil and Architectural Engineering, Nanchang 330099, ChinaJuye County People’s Government Office, Heze 274900, ChinaThe disturbance generated during the pile installation process increased the compressibility of the soil between the piles, thereby causing additional settlement of the composite foundation. This study was conducted against the background of a highway soft foundation treatment project in Zhongshan. Before and after the installation of cement mixing piles (CMP) and pre-stressed high-strength concrete pipe pile (PHC), a piezocone penetration test (CPTU) was applied to assess the soil between the piles and quantify the disturbance. Based on this, the settlement of the composite foundation was predicted using the stress modified method and finite element method (FEM). The results indicate that under low embankment load (<2.5 m), the installation of PHC piles reduces the compression modulus of the soil between the piles by approximately 30%, while CMP results in a reduction of about 10%. Disturbance settlement from CMP and PHC piles accounts for approximately 3–10% and 17–28% of the total settlement, respectively. This impact diminishes with the increase of embankment load.https://www.mdpi.com/2076-3417/15/2/602pile installation disturbancecomposite foundationsettlementpiezocone penetration test |
| spellingShingle | Zhiwei Shao Baoning Hong Xin Liu Yunlong Yao Dongning Sun Guisen Wang Study on the Influence of Pile Installation Disturbance on the Settlement of Composite Foundation Applied Sciences pile installation disturbance composite foundation settlement piezocone penetration test |
| title | Study on the Influence of Pile Installation Disturbance on the Settlement of Composite Foundation |
| title_full | Study on the Influence of Pile Installation Disturbance on the Settlement of Composite Foundation |
| title_fullStr | Study on the Influence of Pile Installation Disturbance on the Settlement of Composite Foundation |
| title_full_unstemmed | Study on the Influence of Pile Installation Disturbance on the Settlement of Composite Foundation |
| title_short | Study on the Influence of Pile Installation Disturbance on the Settlement of Composite Foundation |
| title_sort | study on the influence of pile installation disturbance on the settlement of composite foundation |
| topic | pile installation disturbance composite foundation settlement piezocone penetration test |
| url | https://www.mdpi.com/2076-3417/15/2/602 |
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