Model Testing of Encased Stone Column Composite Foundations under Traffic Loads
In soft soil foundations, geogrid encased stone column composite foundation technology has been widely applied and developed in recent years due to its efficient treatment. In this study, eight groups of laboratory model tests were performed in a large-scale testing tank to investigate the bearing m...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6675176 |
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| author | Yongquan Yuan Minghua Zhao Yao Xiao Chaowei Yang |
| author_facet | Yongquan Yuan Minghua Zhao Yao Xiao Chaowei Yang |
| author_sort | Yongquan Yuan |
| collection | DOAJ |
| description | In soft soil foundations, geogrid encased stone column composite foundation technology has been widely applied and developed in recent years due to its efficient treatment. In this study, eight groups of laboratory model tests were performed in a large-scale testing tank to investigate the bearing mechanism and stress characteristics of the composite foundation of geogrid encased stone columns under traffic loads with different cyclic load ratios. The stress at the bottom of the stone column and settlement of the composite foundation were measured and analysed. The test results show that cyclic shearing will cause the rearrangement of the soil particles at the column-soil interface, which will cause changes in the face pressure and effective stress state of the column-soil boundary. The cyclic load has a substantial influence on the accumulation settlement of the composite foundation and the development of the lateral stress state of the column. Based on the test results, the development law of the cumulative settlement is summarized, and the change mechanism of the column stress state is analysed and discussed. |
| format | Article |
| id | doaj-art-e1ed9a161fae4e3390766c3d482c8364 |
| institution | OA Journals |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-e1ed9a161fae4e3390766c3d482c83642025-08-20T02:21:38ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/66751766675176Model Testing of Encased Stone Column Composite Foundations under Traffic LoadsYongquan Yuan0Minghua Zhao1Yao Xiao2Chaowei Yang3Institute of Geotechnical Engineering, Hunan University, Changsha 410082, ChinaInstitute of Geotechnical Engineering, Hunan University, Changsha 410082, ChinaInstitute of Geotechnical Engineering, Hunan University, Changsha 410082, ChinaInstitute of Geotechnical Engineering, Hunan University, Changsha 410082, ChinaIn soft soil foundations, geogrid encased stone column composite foundation technology has been widely applied and developed in recent years due to its efficient treatment. In this study, eight groups of laboratory model tests were performed in a large-scale testing tank to investigate the bearing mechanism and stress characteristics of the composite foundation of geogrid encased stone columns under traffic loads with different cyclic load ratios. The stress at the bottom of the stone column and settlement of the composite foundation were measured and analysed. The test results show that cyclic shearing will cause the rearrangement of the soil particles at the column-soil interface, which will cause changes in the face pressure and effective stress state of the column-soil boundary. The cyclic load has a substantial influence on the accumulation settlement of the composite foundation and the development of the lateral stress state of the column. Based on the test results, the development law of the cumulative settlement is summarized, and the change mechanism of the column stress state is analysed and discussed.http://dx.doi.org/10.1155/2021/6675176 |
| spellingShingle | Yongquan Yuan Minghua Zhao Yao Xiao Chaowei Yang Model Testing of Encased Stone Column Composite Foundations under Traffic Loads Advances in Civil Engineering |
| title | Model Testing of Encased Stone Column Composite Foundations under Traffic Loads |
| title_full | Model Testing of Encased Stone Column Composite Foundations under Traffic Loads |
| title_fullStr | Model Testing of Encased Stone Column Composite Foundations under Traffic Loads |
| title_full_unstemmed | Model Testing of Encased Stone Column Composite Foundations under Traffic Loads |
| title_short | Model Testing of Encased Stone Column Composite Foundations under Traffic Loads |
| title_sort | model testing of encased stone column composite foundations under traffic loads |
| url | http://dx.doi.org/10.1155/2021/6675176 |
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