Study on the Bearing Characteristics of Composite Foundations with Permeable Concrete Piles
Permeable concrete piles, which combine the advantages of rigid piles and drainage consolidation techniques, have been widely applied in soil foundation treatment. In this study, the optimal mix proportion of the permeable concrete pile material was first determined through laboratory experiments; s...
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MDPI AG
2025-04-01
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| author | Hui Liu Sifan Yang Xiaoya Bian Heng Zhou |
| author_facet | Hui Liu Sifan Yang Xiaoya Bian Heng Zhou |
| author_sort | Hui Liu |
| collection | DOAJ |
| description | Permeable concrete piles, which combine the advantages of rigid piles and drainage consolidation techniques, have been widely applied in soil foundation treatment. In this study, the optimal mix proportion of the permeable concrete pile material was first determined through laboratory experiments; subsequently, based on the experimental results, numerical simulations were employed to investigate the load-bearing characteristics of composite foundations reinforced with permeable concrete piles under applied loads. The experimental results indicate that when the designed porosity is set between 20% and 35%, and the water-to-cement ratio is 0.3, the actual porosity closely approximates the design value, achieving a favorable balance between compressive strength and permeability. Numerical simulation results reveal that as the axial force in the permeable concrete piles attenuates with depth, the side friction of piles exhibits an overall increasing trend. Compared with impermeable piles, the pile–soil stress ratio and the load-sharing ratio of permeable piles gradually decrease under high loads; furthermore, the settlement and pile–soil stress ratio of the composite foundation is significantly influenced by factors such as pile length, pile diameter, cushion modulus, inter-pile soil modulus, and the modulus of the pile material. |
| format | Article |
| id | doaj-art-1b74c1aef5f9470abe9f1fca9056100c |
| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj-art-1b74c1aef5f9470abe9f1fca9056100c2025-08-20T01:49:09ZengMDPI AGApplied Sciences2076-34172025-04-01159483510.3390/app15094835Study on the Bearing Characteristics of Composite Foundations with Permeable Concrete PilesHui Liu0Sifan Yang1Xiaoya Bian2Heng Zhou3School of Civil Engineering and Architecture, Wuhan Institute of Technology, Wuhan 430074, ChinaSchool of Civil Engineering and Architecture, Wuhan Institute of Technology, Wuhan 430074, ChinaSchool of Civil Engineering and Architecture, Wuhan Institute of Technology, Wuhan 430074, ChinaSchool of Civil Engineering and Architecture, Wuhan Institute of Technology, Wuhan 430074, ChinaPermeable concrete piles, which combine the advantages of rigid piles and drainage consolidation techniques, have been widely applied in soil foundation treatment. In this study, the optimal mix proportion of the permeable concrete pile material was first determined through laboratory experiments; subsequently, based on the experimental results, numerical simulations were employed to investigate the load-bearing characteristics of composite foundations reinforced with permeable concrete piles under applied loads. The experimental results indicate that when the designed porosity is set between 20% and 35%, and the water-to-cement ratio is 0.3, the actual porosity closely approximates the design value, achieving a favorable balance between compressive strength and permeability. Numerical simulation results reveal that as the axial force in the permeable concrete piles attenuates with depth, the side friction of piles exhibits an overall increasing trend. Compared with impermeable piles, the pile–soil stress ratio and the load-sharing ratio of permeable piles gradually decrease under high loads; furthermore, the settlement and pile–soil stress ratio of the composite foundation is significantly influenced by factors such as pile length, pile diameter, cushion modulus, inter-pile soil modulus, and the modulus of the pile material.https://www.mdpi.com/2076-3417/15/9/4835soft foundationpermeable concrete pilesbearing capacityconsolidation |
| spellingShingle | Hui Liu Sifan Yang Xiaoya Bian Heng Zhou Study on the Bearing Characteristics of Composite Foundations with Permeable Concrete Piles Applied Sciences soft foundation permeable concrete piles bearing capacity consolidation |
| title | Study on the Bearing Characteristics of Composite Foundations with Permeable Concrete Piles |
| title_full | Study on the Bearing Characteristics of Composite Foundations with Permeable Concrete Piles |
| title_fullStr | Study on the Bearing Characteristics of Composite Foundations with Permeable Concrete Piles |
| title_full_unstemmed | Study on the Bearing Characteristics of Composite Foundations with Permeable Concrete Piles |
| title_short | Study on the Bearing Characteristics of Composite Foundations with Permeable Concrete Piles |
| title_sort | study on the bearing characteristics of composite foundations with permeable concrete piles |
| topic | soft foundation permeable concrete piles bearing capacity consolidation |
| url | https://www.mdpi.com/2076-3417/15/9/4835 |
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