Improving the Performance of Piled Raft Foundations Using Deformation Adjustors: A Case Study
Complicated soil conditions are direct difficulties for high-rise building projects. A new device called a deformation adjustor, which is used to optimize the stiffness distribution in the piled raft system, has achieved good results for this challenge. This paper presents a case study on the applic...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/12/11/1903 |
| _version_ | 1827647039590105088 |
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| author | Rui Zhu Feng Zhou Zhihui Wan Shengjun Deng Xin Dong Zekun Zhou Wei Xing |
| author_facet | Rui Zhu Feng Zhou Zhihui Wan Shengjun Deng Xin Dong Zekun Zhou Wei Xing |
| author_sort | Rui Zhu |
| collection | DOAJ |
| description | Complicated soil conditions are direct difficulties for high-rise building projects. A new device called a deformation adjustor, which is used to optimize the stiffness distribution in the piled raft system, has achieved good results for this challenge. This paper presents a case study on the application of deformation adjustors to improve the performance of a piled raft foundation. This case study describes the preliminary design of pile-raft foundations with deformation adjustors, followed by numerical analysis. Based on the numerical study, the potential savings are demonstrated due to the good performance of soil bearing capacity. Comparing the numerical results with the monitoring results in raft settlements, earth pressures, deformation amount of deformation adjustors, pile top reactions, and load-sharing ratios between soils and piles, the accuracy of the design schemes with an aided numerical analysis is verified. Through a long-term monitoring, soils below the raft carried 63% of the total applied loads, while the piles bear 37% of the loads. This case study proved that a piled raft foundation with deformation adjustors was an effective and economical design scheme, which can make full use of the soil bearing capacity. It is of great significance to facilitate the design and construction of piled raft foundations in complicated soil conditions. |
| first_indexed | 2024-03-09T19:13:41Z |
| format | Article |
| id | doaj.art-d75fc80e309a4771955bb15633092c18 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-09T19:13:41Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-d75fc80e309a4771955bb15633092c182023-11-24T03:59:30ZengMDPI AGBuildings2075-53092022-11-011211190310.3390/buildings12111903Improving the Performance of Piled Raft Foundations Using Deformation Adjustors: A Case StudyRui Zhu0Feng Zhou1Zhihui Wan2Shengjun Deng3Xin Dong4Zekun Zhou5Wei Xing6College of Transportation Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Transportation Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Transportation Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Transportation Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Transportation Engineering, Nanjing Tech University, Nanjing 211816, ChinaChina Railway 19th Bureau Mining Investment Co., Ltd., Beijing 100161, ChinaCollege of Transportation Engineering, Nanjing Tech University, Nanjing 211816, ChinaComplicated soil conditions are direct difficulties for high-rise building projects. A new device called a deformation adjustor, which is used to optimize the stiffness distribution in the piled raft system, has achieved good results for this challenge. This paper presents a case study on the application of deformation adjustors to improve the performance of a piled raft foundation. This case study describes the preliminary design of pile-raft foundations with deformation adjustors, followed by numerical analysis. Based on the numerical study, the potential savings are demonstrated due to the good performance of soil bearing capacity. Comparing the numerical results with the monitoring results in raft settlements, earth pressures, deformation amount of deformation adjustors, pile top reactions, and load-sharing ratios between soils and piles, the accuracy of the design schemes with an aided numerical analysis is verified. Through a long-term monitoring, soils below the raft carried 63% of the total applied loads, while the piles bear 37% of the loads. This case study proved that a piled raft foundation with deformation adjustors was an effective and economical design scheme, which can make full use of the soil bearing capacity. It is of great significance to facilitate the design and construction of piled raft foundations in complicated soil conditions.https://www.mdpi.com/2075-5309/12/11/1903end-bearing pilescomposite foundationpiled raft foundationdeformation adjustorsnumerical analysisdifferential settlement |
| spellingShingle | Rui Zhu Feng Zhou Zhihui Wan Shengjun Deng Xin Dong Zekun Zhou Wei Xing Improving the Performance of Piled Raft Foundations Using Deformation Adjustors: A Case Study Buildings end-bearing piles composite foundation piled raft foundation deformation adjustors numerical analysis differential settlement |
| title | Improving the Performance of Piled Raft Foundations Using Deformation Adjustors: A Case Study |
| title_full | Improving the Performance of Piled Raft Foundations Using Deformation Adjustors: A Case Study |
| title_fullStr | Improving the Performance of Piled Raft Foundations Using Deformation Adjustors: A Case Study |
| title_full_unstemmed | Improving the Performance of Piled Raft Foundations Using Deformation Adjustors: A Case Study |
| title_short | Improving the Performance of Piled Raft Foundations Using Deformation Adjustors: A Case Study |
| title_sort | improving the performance of piled raft foundations using deformation adjustors a case study |
| topic | end-bearing piles composite foundation piled raft foundation deformation adjustors numerical analysis differential settlement |
| url | https://www.mdpi.com/2075-5309/12/11/1903 |
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