Study on the load-supporting characteristic of the new type of support disc-type anchor under cyclic loading test
Abstract The new type of support disc-type anchor is an expanded body anchor with broad application prospects, and its load-bearing performance is significantly better than that of traditional anchors. However, there is a problem of premature shear damage in traditional support disc-type anchors. In...
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-84639-y |
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| author | Fuguang Gu Jun Wang Hong Chang Qinglin Sun Zhengheng Gan Haozhi Jiang |
| author_facet | Fuguang Gu Jun Wang Hong Chang Qinglin Sun Zhengheng Gan Haozhi Jiang |
| author_sort | Fuguang Gu |
| collection | DOAJ |
| description | Abstract The new type of support disc-type anchor is an expanded body anchor with broad application prospects, and its load-bearing performance is significantly better than that of traditional anchors. However, there is a problem of premature shear damage in traditional support disc-type anchors. In order to solve this problem, this paper improves the traditional support disk anchor. It conducts cyclic loading tests on the new type of support disc-type anchors with different support disc diameters, support disc thicknesses, anchoring section diameters, and anchoring section lengths so as to simulate the repeated loads that the anchors are subjected to in actual projects. The function model suitable for predicting the bearing capacity of the new type of support disc-type anchors was derived by nonlinear fitting of some data using the function model and verified by comparing it with the measured data. A functional model predicts the bearing capacity of the new type of support disc-type anchors through nonlinear fitting of the data, validating the model against measured results. The study reveals that factors such as support disc diameter and anchoring section length have the most significant impact on pullout bearing capacity. In contrast, increasing the anchoring section diameter and shortening the anchoring section length may lower the pullout bearing capacity. The Q-s curve divides into five stages, where the lateral friction force between the anchoring section and the soil, along with the bulb resistance at the supported disc, collectively generates the bearing capacity of the new type of support disc-type anchor. The Belehradek function model proves most effective in describing the Q-s curve for these anchors during testing, demonstrating high accuracy and strong engineering practicality. |
| format | Article |
| id | doaj-art-edd96534dff24f64acb032a56dbf58ef |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-edd96534dff24f64acb032a56dbf58ef2025-01-05T12:19:56ZengNature PortfolioScientific Reports2045-23222025-01-0115111710.1038/s41598-024-84639-yStudy on the load-supporting characteristic of the new type of support disc-type anchor under cyclic loading testFuguang Gu0Jun Wang1Hong Chang2Qinglin Sun3Zhengheng Gan4Haozhi Jiang5School of Geomatics and Prospecting Engineering, Jilin Jianzhu UniversitySchool of Geomatics and Prospecting Engineering, Jilin Jianzhu UniversitySchool of Geomatics and Prospecting Engineering, Jilin Jianzhu UniversitySchool of Geomatics and Prospecting Engineering, Jilin Jianzhu UniversitySchool of Geomatics and Prospecting Engineering, Jilin Jianzhu UniversitySchool of Geomatics and Prospecting Engineering, Jilin Jianzhu UniversityAbstract The new type of support disc-type anchor is an expanded body anchor with broad application prospects, and its load-bearing performance is significantly better than that of traditional anchors. However, there is a problem of premature shear damage in traditional support disc-type anchors. In order to solve this problem, this paper improves the traditional support disk anchor. It conducts cyclic loading tests on the new type of support disc-type anchors with different support disc diameters, support disc thicknesses, anchoring section diameters, and anchoring section lengths so as to simulate the repeated loads that the anchors are subjected to in actual projects. The function model suitable for predicting the bearing capacity of the new type of support disc-type anchors was derived by nonlinear fitting of some data using the function model and verified by comparing it with the measured data. A functional model predicts the bearing capacity of the new type of support disc-type anchors through nonlinear fitting of the data, validating the model against measured results. The study reveals that factors such as support disc diameter and anchoring section length have the most significant impact on pullout bearing capacity. In contrast, increasing the anchoring section diameter and shortening the anchoring section length may lower the pullout bearing capacity. The Q-s curve divides into five stages, where the lateral friction force between the anchoring section and the soil, along with the bulb resistance at the supported disc, collectively generates the bearing capacity of the new type of support disc-type anchor. The Belehradek function model proves most effective in describing the Q-s curve for these anchors during testing, demonstrating high accuracy and strong engineering practicality.https://doi.org/10.1038/s41598-024-84639-ySupport disc-type anchorCyclic loading testLoad-supporting characteristicQ-s curveFunctional modelPrediction of bearing capacity |
| spellingShingle | Fuguang Gu Jun Wang Hong Chang Qinglin Sun Zhengheng Gan Haozhi Jiang Study on the load-supporting characteristic of the new type of support disc-type anchor under cyclic loading test Scientific Reports Support disc-type anchor Cyclic loading test Load-supporting characteristic Q-s curve Functional model Prediction of bearing capacity |
| title | Study on the load-supporting characteristic of the new type of support disc-type anchor under cyclic loading test |
| title_full | Study on the load-supporting characteristic of the new type of support disc-type anchor under cyclic loading test |
| title_fullStr | Study on the load-supporting characteristic of the new type of support disc-type anchor under cyclic loading test |
| title_full_unstemmed | Study on the load-supporting characteristic of the new type of support disc-type anchor under cyclic loading test |
| title_short | Study on the load-supporting characteristic of the new type of support disc-type anchor under cyclic loading test |
| title_sort | study on the load supporting characteristic of the new type of support disc type anchor under cyclic loading test |
| topic | Support disc-type anchor Cyclic loading test Load-supporting characteristic Q-s curve Functional model Prediction of bearing capacity |
| url | https://doi.org/10.1038/s41598-024-84639-y |
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