Undrained deformation characteristic of saturated soft clay under traffic loading
Previous studies on the undrained deformation behavior of saturated soft clay under traffic loading usually ignored the effect of cyclic confining pressure. In the present study, a series of undrained constant confining pressure (CCP) and variable confining pressure (VCP) cyclic triaxial tests were...
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Editorial Office of Hydrogeology & Engineering Geology
2024-11-01
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| Series: | Shuiwen dizhi gongcheng dizhi |
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| Online Access: | https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202310006 |
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| author | Lei SUN Yuke WANG |
| author_facet | Lei SUN Yuke WANG |
| author_sort | Lei SUN |
| collection | DOAJ |
| description | Previous studies on the undrained deformation behavior of saturated soft clay under traffic loading usually ignored the effect of cyclic confining pressure. In the present study, a series of undrained constant confining pressure (CCP) and variable confining pressure (VCP) cyclic triaxial tests were conducted on Wenzhou soft clay through GDS cyclic triaxial test system to investigate the deformation behavior of saturated soft clay subgrade under different stress paths due to traffic loading. Special attention was paid to the effects of cyclic stress ratio (CSR) and stress path (α) on the dynamic resilient modulus as well as axial accumulated strain. The test results show that under undrained conditions, the dynamic resilient modulus decreases with the increase of CSR and α, while the axial accumulated strain increases with the increase of CSR and α. It suggests that cyclic confining pressure can improve the stiffness and restrain the axial strain accumulation of saturated soft clay under cyclic loading. Based on the test results and the existing empirical models, a dynamic resilient modulus empirical model and an axial strain accumulation model were established, respectively, which consider the influence of stress paths due to traffic loading, and can be used to calculate and analyze the long-term deformation of soft clay soil foundation under traffic loading. |
| format | Article |
| id | doaj-art-8a714f6624fb4efbaa3954e4e12cda1c |
| institution | Kabale University |
| issn | 1000-3665 |
| language | zho |
| publishDate | 2024-11-01 |
| publisher | Editorial Office of Hydrogeology & Engineering Geology |
| record_format | Article |
| series | Shuiwen dizhi gongcheng dizhi |
| spelling | doaj-art-8a714f6624fb4efbaa3954e4e12cda1c2025-01-18T03:53:12ZzhoEditorial Office of Hydrogeology & Engineering GeologyShuiwen dizhi gongcheng dizhi1000-36652024-11-0151612613710.16030/j.cnki.issn.1000-3665.202310006202310006Undrained deformation characteristic of saturated soft clay under traffic loadingLei SUN0Yuke WANG1School of Resources and Civil Engineering, Suzhou University, Suzhou, Anhui 234000, ChinaSchool of Water Conservancy and Transportation, Zhengzhou Univerisity, Zhengzhou, Henan 450001, ChinaPrevious studies on the undrained deformation behavior of saturated soft clay under traffic loading usually ignored the effect of cyclic confining pressure. In the present study, a series of undrained constant confining pressure (CCP) and variable confining pressure (VCP) cyclic triaxial tests were conducted on Wenzhou soft clay through GDS cyclic triaxial test system to investigate the deformation behavior of saturated soft clay subgrade under different stress paths due to traffic loading. Special attention was paid to the effects of cyclic stress ratio (CSR) and stress path (α) on the dynamic resilient modulus as well as axial accumulated strain. The test results show that under undrained conditions, the dynamic resilient modulus decreases with the increase of CSR and α, while the axial accumulated strain increases with the increase of CSR and α. It suggests that cyclic confining pressure can improve the stiffness and restrain the axial strain accumulation of saturated soft clay under cyclic loading. Based on the test results and the existing empirical models, a dynamic resilient modulus empirical model and an axial strain accumulation model were established, respectively, which consider the influence of stress paths due to traffic loading, and can be used to calculate and analyze the long-term deformation of soft clay soil foundation under traffic loading.https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202310006saturated soft claystress pathresilient modulusaxial accumulated strainempirical model |
| spellingShingle | Lei SUN Yuke WANG Undrained deformation characteristic of saturated soft clay under traffic loading Shuiwen dizhi gongcheng dizhi saturated soft clay stress path resilient modulus axial accumulated strain empirical model |
| title | Undrained deformation characteristic of saturated soft clay under traffic loading |
| title_full | Undrained deformation characteristic of saturated soft clay under traffic loading |
| title_fullStr | Undrained deformation characteristic of saturated soft clay under traffic loading |
| title_full_unstemmed | Undrained deformation characteristic of saturated soft clay under traffic loading |
| title_short | Undrained deformation characteristic of saturated soft clay under traffic loading |
| title_sort | undrained deformation characteristic of saturated soft clay under traffic loading |
| topic | saturated soft clay stress path resilient modulus axial accumulated strain empirical model |
| url | https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202310006 |
| work_keys_str_mv | AT leisun undraineddeformationcharacteristicofsaturatedsoftclayundertrafficloading AT yukewang undraineddeformationcharacteristicofsaturatedsoftclayundertrafficloading |