Shear Creep Properties and Creep Model of Gravel Sliding Zone: A Case Study of the Zhoujia Landslide in China
Creep behavior of landslide sliding zones is closely related to the long-term stability and safety of landslides. In this paper, shear creep tests are carried out on undisturbed samples of the gravel sliding zone in the Zhoujia landslide. Creep properties, such as creep rate and long-term strength,...
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Frontiers Media S.A.
2022-02-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2022.838183/full |
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| author | Shizhuang Chen Shizhuang Chen Weiya Xu Weiya Xu Mengcheng Sun Mengcheng Sun Long Yan Long Yan Jing Hou Weiwei Wu Wei-Chau Xie |
| author_facet | Shizhuang Chen Shizhuang Chen Weiya Xu Weiya Xu Mengcheng Sun Mengcheng Sun Long Yan Long Yan Jing Hou Weiwei Wu Wei-Chau Xie |
| author_sort | Shizhuang Chen |
| collection | DOAJ |
| description | Creep behavior of landslide sliding zones is closely related to the long-term stability and safety of landslides. In this paper, shear creep tests are carried out on undisturbed samples of the gravel sliding zone in the Zhoujia landslide. Creep properties, such as creep rate and long-term strength, of the sliding zone are studied. The result shows that the sliding zone has typical time-dependent behavior. The relationship between the steady strain rate and shear stress can be described by an exponential equation. The long-term strengths of the sliding zone under different normal stresses are determined by using the isochronous curve cluster method. A nonlinear viscoelastic-plastic creep model is developed based on the Nishihara model. The model is shown to be suitable for describing the accelerated creep deformation of the sliding zone. The results obtained are of practical significance for understanding the deformations of the Zhoujia landslide. |
| first_indexed | 2024-12-20T15:24:23Z |
| format | Article |
| id | doaj.art-7bd0cc59e0614caf900218391fd09d69 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-12-20T15:24:23Z |
| publishDate | 2022-02-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Earth Science |
| spelling | doaj.art-7bd0cc59e0614caf900218391fd09d692022-12-21T19:35:55ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632022-02-011010.3389/feart.2022.838183838183Shear Creep Properties and Creep Model of Gravel Sliding Zone: A Case Study of the Zhoujia Landslide in ChinaShizhuang Chen0Shizhuang Chen1Weiya Xu2Weiya Xu3Mengcheng Sun4Mengcheng Sun5Long Yan6Long Yan7Jing Hou8Weiwei Wu9Wei-Chau Xie10Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, ChinaResearch Institute of Geotechnical Engineering, Hohai University, Nanjing, ChinaKey Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, ChinaResearch Institute of Geotechnical Engineering, Hohai University, Nanjing, ChinaKey Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, ChinaResearch Institute of Geotechnical Engineering, Hohai University, Nanjing, ChinaKey Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, ChinaResearch Institute of Geotechnical Engineering, Hohai University, Nanjing, ChinaPowerchina Huadong Engineering Corporation Limited, Hangzhou, ChinaPowerchina Huadong Engineering Corporation Limited, Hangzhou, ChinaDepartment of Civil and Environmental Engineering, University of Waterloo, Waterloo, ON, CanadaCreep behavior of landslide sliding zones is closely related to the long-term stability and safety of landslides. In this paper, shear creep tests are carried out on undisturbed samples of the gravel sliding zone in the Zhoujia landslide. Creep properties, such as creep rate and long-term strength, of the sliding zone are studied. The result shows that the sliding zone has typical time-dependent behavior. The relationship between the steady strain rate and shear stress can be described by an exponential equation. The long-term strengths of the sliding zone under different normal stresses are determined by using the isochronous curve cluster method. A nonlinear viscoelastic-plastic creep model is developed based on the Nishihara model. The model is shown to be suitable for describing the accelerated creep deformation of the sliding zone. The results obtained are of practical significance for understanding the deformations of the Zhoujia landslide.https://www.frontiersin.org/articles/10.3389/feart.2022.838183/fullZhoujia landslidesliding zonelong-term stabilityshear creep testcreep propertiesNVPC model |
| spellingShingle | Shizhuang Chen Shizhuang Chen Weiya Xu Weiya Xu Mengcheng Sun Mengcheng Sun Long Yan Long Yan Jing Hou Weiwei Wu Wei-Chau Xie Shear Creep Properties and Creep Model of Gravel Sliding Zone: A Case Study of the Zhoujia Landslide in China Frontiers in Earth Science Zhoujia landslide sliding zone long-term stability shear creep test creep properties NVPC model |
| title | Shear Creep Properties and Creep Model of Gravel Sliding Zone: A Case Study of the Zhoujia Landslide in China |
| title_full | Shear Creep Properties and Creep Model of Gravel Sliding Zone: A Case Study of the Zhoujia Landslide in China |
| title_fullStr | Shear Creep Properties and Creep Model of Gravel Sliding Zone: A Case Study of the Zhoujia Landslide in China |
| title_full_unstemmed | Shear Creep Properties and Creep Model of Gravel Sliding Zone: A Case Study of the Zhoujia Landslide in China |
| title_short | Shear Creep Properties and Creep Model of Gravel Sliding Zone: A Case Study of the Zhoujia Landslide in China |
| title_sort | shear creep properties and creep model of gravel sliding zone a case study of the zhoujia landslide in china |
| topic | Zhoujia landslide sliding zone long-term stability shear creep test creep properties NVPC model |
| url | https://www.frontiersin.org/articles/10.3389/feart.2022.838183/full |
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