Plate Size Effects in Gravelly Soil Based on In Situ Plate Load Tests and Finite Element Analysis
The average contact stress–settlement behavior observed in plate load tests provides essential data for reliable foundation design. However, the test plate is often smaller than the actual foundation, requiring size extrapolation to interpret in situ plate load test results accurately. This study co...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/2/760 |
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| author | Wenshuai Li Qiyu Tao Rui Gu Chao Li Guoliang Dai Weiming Gong |
| author_facet | Wenshuai Li Qiyu Tao Rui Gu Chao Li Guoliang Dai Weiming Gong |
| author_sort | Wenshuai Li |
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| description | The average contact stress–settlement behavior observed in plate load tests provides essential data for reliable foundation design. However, the test plate is often smaller than the actual foundation, requiring size extrapolation to interpret in situ plate load test results accurately. This study combines in situ plate load test results in gravelly soil with finite element analysis to evaluate test plates of varying sizes. The findings suggest that the coefficient of subgrade reaction for gravelly soil foundations can be effectively estimated using Terzaghi’s extrapolation method for the coefficient of subgrade reaction in clay. Although variations in test plate diameter may alter the shape of the average contact stress–settlement curve, the overall pattern of change remains consistent. The average contact stress–settlement relationship in gravelly soil can be represented by a three-phase linear model, corresponding to the elastic, yield, and failure stages. Additionally, while the elastic limit load in gravelly soil remains unaffected by plate size, the ultimate bearing capacity increases with larger plates before stabilizing. |
| format | Article |
| id | doaj-art-f18a19b7e85649e2a1788a7cb58966b5 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-f18a19b7e85649e2a1788a7cb58966b52025-01-24T13:20:43ZengMDPI AGApplied Sciences2076-34172025-01-0115276010.3390/app15020760Plate Size Effects in Gravelly Soil Based on In Situ Plate Load Tests and Finite Element AnalysisWenshuai Li0Qiyu Tao1Rui Gu2Chao Li3Guoliang Dai4Weiming Gong5School of Civil Engineering, Southeast University, Nanjing 211189, ChinaSichuan Highway Planning, Survey, Design and Research Institute Ltd., Chengdu 610041, ChinaSichuan Highway Planning, Survey, Design and Research Institute Ltd., Chengdu 610041, ChinaSichuan Transportation Construction Group Co., Ltd., Bridge Engineering Branch, Chengdu 610041, ChinaSchool of Civil Engineering, Southeast University, Nanjing 211189, ChinaSchool of Civil Engineering, Southeast University, Nanjing 211189, ChinaThe average contact stress–settlement behavior observed in plate load tests provides essential data for reliable foundation design. However, the test plate is often smaller than the actual foundation, requiring size extrapolation to interpret in situ plate load test results accurately. This study combines in situ plate load test results in gravelly soil with finite element analysis to evaluate test plates of varying sizes. The findings suggest that the coefficient of subgrade reaction for gravelly soil foundations can be effectively estimated using Terzaghi’s extrapolation method for the coefficient of subgrade reaction in clay. Although variations in test plate diameter may alter the shape of the average contact stress–settlement curve, the overall pattern of change remains consistent. The average contact stress–settlement relationship in gravelly soil can be represented by a three-phase linear model, corresponding to the elastic, yield, and failure stages. Additionally, while the elastic limit load in gravelly soil remains unaffected by plate size, the ultimate bearing capacity increases with larger plates before stabilizing.https://www.mdpi.com/2076-3417/15/2/760plate load testsize effectcoefficient of subgrade reactiongravelly soil |
| spellingShingle | Wenshuai Li Qiyu Tao Rui Gu Chao Li Guoliang Dai Weiming Gong Plate Size Effects in Gravelly Soil Based on In Situ Plate Load Tests and Finite Element Analysis Applied Sciences plate load test size effect coefficient of subgrade reaction gravelly soil |
| title | Plate Size Effects in Gravelly Soil Based on In Situ Plate Load Tests and Finite Element Analysis |
| title_full | Plate Size Effects in Gravelly Soil Based on In Situ Plate Load Tests and Finite Element Analysis |
| title_fullStr | Plate Size Effects in Gravelly Soil Based on In Situ Plate Load Tests and Finite Element Analysis |
| title_full_unstemmed | Plate Size Effects in Gravelly Soil Based on In Situ Plate Load Tests and Finite Element Analysis |
| title_short | Plate Size Effects in Gravelly Soil Based on In Situ Plate Load Tests and Finite Element Analysis |
| title_sort | plate size effects in gravelly soil based on in situ plate load tests and finite element analysis |
| topic | plate load test size effect coefficient of subgrade reaction gravelly soil |
| url | https://www.mdpi.com/2076-3417/15/2/760 |
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