Bearing Capacity of Ring Foundations on Sand Overlying Clay
The vertical bearing capacity of rough ring foundations resting on a sand layer overlying clay soil is computed in this study by using finite element limit analysis (FELA). The sands and clays are assumed as elastoplastic models, obeying Mohr–Coulomb and Tresca failure criteria, respectively. Based...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-07-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/13/4675 |
| _version_ | 1797563117264175104 |
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| author | Chaowei Yang Zhiren Zhu Yao Xiao |
| author_facet | Chaowei Yang Zhiren Zhu Yao Xiao |
| author_sort | Chaowei Yang |
| collection | DOAJ |
| description | The vertical bearing capacity of rough ring foundations resting on a sand layer overlying clay soil is computed in this study by using finite element limit analysis (FELA). The sands and clays are assumed as elastoplastic models, obeying Mohr–Coulomb and Tresca failure criteria, respectively. Based on the FELA results, design charts are provided for evaluating the ultimate bearing capacity of ring foundations, which is related to the undrained shear strength of the clay, the thickness, the internal friction angle, the unit weight of the sand layer, and the ratio of the internal radius to the external radius of the footing. A certain thickness, beyond which the clay layer has a negligible effect on the bearing capacity, is determined. The collapse mechanisms are also examined and discussed. |
| first_indexed | 2024-03-10T18:39:02Z |
| format | Article |
| id | doaj.art-ecf9e68822c246c880bdf396d89b23ba |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T18:39:02Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-ecf9e68822c246c880bdf396d89b23ba2023-11-20T06:04:07ZengMDPI AGApplied Sciences2076-34172020-07-011013467510.3390/app10134675Bearing Capacity of Ring Foundations on Sand Overlying ClayChaowei Yang0Zhiren Zhu1Yao Xiao2Institute of Geotechnical Engineering, Hunan University, Changsha 410082, ChinaInstitute of Geotechnical Engineering, Hunan University, Changsha 410082, ChinaInstitute of Geotechnical Engineering, Hunan University, Changsha 410082, ChinaThe vertical bearing capacity of rough ring foundations resting on a sand layer overlying clay soil is computed in this study by using finite element limit analysis (FELA). The sands and clays are assumed as elastoplastic models, obeying Mohr–Coulomb and Tresca failure criteria, respectively. Based on the FELA results, design charts are provided for evaluating the ultimate bearing capacity of ring foundations, which is related to the undrained shear strength of the clay, the thickness, the internal friction angle, the unit weight of the sand layer, and the ratio of the internal radius to the external radius of the footing. A certain thickness, beyond which the clay layer has a negligible effect on the bearing capacity, is determined. The collapse mechanisms are also examined and discussed.https://www.mdpi.com/2076-3417/10/13/4675ring foundationbearing capacitysand overlying clayfinite elementlimit analysis |
| spellingShingle | Chaowei Yang Zhiren Zhu Yao Xiao Bearing Capacity of Ring Foundations on Sand Overlying Clay Applied Sciences ring foundation bearing capacity sand overlying clay finite element limit analysis |
| title | Bearing Capacity of Ring Foundations on Sand Overlying Clay |
| title_full | Bearing Capacity of Ring Foundations on Sand Overlying Clay |
| title_fullStr | Bearing Capacity of Ring Foundations on Sand Overlying Clay |
| title_full_unstemmed | Bearing Capacity of Ring Foundations on Sand Overlying Clay |
| title_short | Bearing Capacity of Ring Foundations on Sand Overlying Clay |
| title_sort | bearing capacity of ring foundations on sand overlying clay |
| topic | ring foundation bearing capacity sand overlying clay finite element limit analysis |
| url | https://www.mdpi.com/2076-3417/10/13/4675 |
| work_keys_str_mv | AT chaoweiyang bearingcapacityofringfoundationsonsandoverlyingclay AT zhirenzhu bearingcapacityofringfoundationsonsandoverlyingclay AT yaoxiao bearingcapacityofringfoundationsonsandoverlyingclay |