Adaptive Optimization Method for Piled Raft Foundations Based on Variable Pile Spacing
Stricter control of the differential settlement is always required in important buildings more than in ordinary buildings. It becomes a necessity to find a simple and efficient optimum design method for pile foundations in terms of performance and economy. In this paper, an adaptive optimization met...
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| Format: | Article |
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MDPI AG
2023-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/3/1648 |
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| author | Chenyang Yuan Yunfei Xie Mang Ou |
| author_facet | Chenyang Yuan Yunfei Xie Mang Ou |
| author_sort | Chenyang Yuan |
| collection | DOAJ |
| description | Stricter control of the differential settlement is always required in important buildings more than in ordinary buildings. It becomes a necessity to find a simple and efficient optimum design method for pile foundations in terms of performance and economy. In this paper, an adaptive optimization method (AOM) is proposed to reduce the differential settlement of the pile group and piled raft, in which the piles are located in appropriate locations according to the settlement characteristic of the raft. Piled raft foundations with different types of load and different raft shapes are optimized using this method; soil inhomogeneity and nonlinear characteristic are considered during this process. The optimization results show that the reductions of the differential settlement are more than 80%. The overall foundation performances are improved as the maximum settlements of the foundations are reduced. The maximum bearing capacity of the pile group is no more than its ultimate bearing capacity after optimization design, and part of the excess bearing capacity can be translated into economic savings (AOM-ES). By keeping a good optimization effect of the differential settlement, the number of piles can be reduced by AOM-ES compared with the initial design. The AOM is robust and can be applied to the piled foundations of various raft shapes in layered soils under complex vertical loads with no significant impact on optimization efficiency. |
| first_indexed | 2024-03-11T09:52:25Z |
| format | Article |
| id | doaj.art-c2e682600c6e48c5976c253f70d15726 |
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| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T09:52:25Z |
| publishDate | 2023-01-01 |
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| spelling | doaj.art-c2e682600c6e48c5976c253f70d157262023-11-16T16:08:30ZengMDPI AGApplied Sciences2076-34172023-01-01133164810.3390/app13031648Adaptive Optimization Method for Piled Raft Foundations Based on Variable Pile SpacingChenyang Yuan0Yunfei Xie1Mang Ou2School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaSchool of Architecture, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaSchool of Architecture Engineering, Zhengzhou University of Industrial Technology, Zhengzhou 450046, ChinaStricter control of the differential settlement is always required in important buildings more than in ordinary buildings. It becomes a necessity to find a simple and efficient optimum design method for pile foundations in terms of performance and economy. In this paper, an adaptive optimization method (AOM) is proposed to reduce the differential settlement of the pile group and piled raft, in which the piles are located in appropriate locations according to the settlement characteristic of the raft. Piled raft foundations with different types of load and different raft shapes are optimized using this method; soil inhomogeneity and nonlinear characteristic are considered during this process. The optimization results show that the reductions of the differential settlement are more than 80%. The overall foundation performances are improved as the maximum settlements of the foundations are reduced. The maximum bearing capacity of the pile group is no more than its ultimate bearing capacity after optimization design, and part of the excess bearing capacity can be translated into economic savings (AOM-ES). By keeping a good optimization effect of the differential settlement, the number of piles can be reduced by AOM-ES compared with the initial design. The AOM is robust and can be applied to the piled foundations of various raft shapes in layered soils under complex vertical loads with no significant impact on optimization efficiency.https://www.mdpi.com/2076-3417/13/3/1648piled raft foundationsadaptive optimization methodvariable pile spacingdifferential settlementeconomic savings |
| spellingShingle | Chenyang Yuan Yunfei Xie Mang Ou Adaptive Optimization Method for Piled Raft Foundations Based on Variable Pile Spacing Applied Sciences piled raft foundations adaptive optimization method variable pile spacing differential settlement economic savings |
| title | Adaptive Optimization Method for Piled Raft Foundations Based on Variable Pile Spacing |
| title_full | Adaptive Optimization Method for Piled Raft Foundations Based on Variable Pile Spacing |
| title_fullStr | Adaptive Optimization Method for Piled Raft Foundations Based on Variable Pile Spacing |
| title_full_unstemmed | Adaptive Optimization Method for Piled Raft Foundations Based on Variable Pile Spacing |
| title_short | Adaptive Optimization Method for Piled Raft Foundations Based on Variable Pile Spacing |
| title_sort | adaptive optimization method for piled raft foundations based on variable pile spacing |
| topic | piled raft foundations adaptive optimization method variable pile spacing differential settlement economic savings |
| url | https://www.mdpi.com/2076-3417/13/3/1648 |
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