Experimental study on the dynamic shear modulus and damping ratio of structural soft soils from the Yangtze River floodplain considering consolidation degree
To explore the characteristics of the dynamic shear modulus of structural soft soil, undisturbed structural soft from the floodplain of the Yangtze River in Nanjing was subjected to strain-controlled cyclic triaxial tests to investigate how the initial effective confining pressure (σ'm), consol...
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Frontiers Media S.A.
2025-08-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2025.1648806/full |
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| author | Zhijun Wang Na Lv Xing Xiao Qi Wu |
| author_facet | Zhijun Wang Na Lv Xing Xiao Qi Wu |
| author_sort | Zhijun Wang |
| collection | DOAJ |
| description | To explore the characteristics of the dynamic shear modulus of structural soft soil, undisturbed structural soft from the floodplain of the Yangtze River in Nanjing was subjected to strain-controlled cyclic triaxial tests to investigate how the initial effective confining pressure (σ'm), consolidation ratio (kc), and degree of consolidation (U) influence the maximum dynamic shear modulus Gmax and dynamic shear modulus (G) and damping ratio (λ). The results show that for this soil, G decreases with increasing shear strain amplitude (γ), and for a given γ, G increases with increasing σ'm, kc, and U. Compared with soil from the Yangtze estuary, kc has a greater effect on Gmax of the floodplain structural soft soil. Finally, a modified Martin-Davidenkov model is proposed for predicting G/Gmax of floodplain structural soft soil under different σ'm, kc, and U. |
| format | Article |
| id | doaj-art-44833e056b75498c83e3a5dbb71b8ff1 |
| institution | Matheson Library |
| issn | 2296-7745 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj-art-44833e056b75498c83e3a5dbb71b8ff12025-08-04T20:23:37ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452025-08-011210.3389/fmars.2025.16488061648806Experimental study on the dynamic shear modulus and damping ratio of structural soft soils from the Yangtze River floodplain considering consolidation degreeZhijun Wang0Na Lv1Xing Xiao2Qi Wu3Huarun New Energy Investment Co., Ltd., Shenzhen, ChinaHuadong Engineering Corporation Limited, Hangzhou, ChinaInstitute of Geotechnical Engineering, Nanjing Tech University, Nanjing, ChinaInstitute of Geotechnical Engineering, Nanjing Tech University, Nanjing, ChinaTo explore the characteristics of the dynamic shear modulus of structural soft soil, undisturbed structural soft from the floodplain of the Yangtze River in Nanjing was subjected to strain-controlled cyclic triaxial tests to investigate how the initial effective confining pressure (σ'm), consolidation ratio (kc), and degree of consolidation (U) influence the maximum dynamic shear modulus Gmax and dynamic shear modulus (G) and damping ratio (λ). The results show that for this soil, G decreases with increasing shear strain amplitude (γ), and for a given γ, G increases with increasing σ'm, kc, and U. Compared with soil from the Yangtze estuary, kc has a greater effect on Gmax of the floodplain structural soft soil. Finally, a modified Martin-Davidenkov model is proposed for predicting G/Gmax of floodplain structural soft soil under different σ'm, kc, and U.https://www.frontiersin.org/articles/10.3389/fmars.2025.1648806/fullstructural soft soildynamic shear modulusdamping ratioinitial static stressdegree of consolidation |
| spellingShingle | Zhijun Wang Na Lv Xing Xiao Qi Wu Experimental study on the dynamic shear modulus and damping ratio of structural soft soils from the Yangtze River floodplain considering consolidation degree Frontiers in Marine Science structural soft soil dynamic shear modulus damping ratio initial static stress degree of consolidation |
| title | Experimental study on the dynamic shear modulus and damping ratio of structural soft soils from the Yangtze River floodplain considering consolidation degree |
| title_full | Experimental study on the dynamic shear modulus and damping ratio of structural soft soils from the Yangtze River floodplain considering consolidation degree |
| title_fullStr | Experimental study on the dynamic shear modulus and damping ratio of structural soft soils from the Yangtze River floodplain considering consolidation degree |
| title_full_unstemmed | Experimental study on the dynamic shear modulus and damping ratio of structural soft soils from the Yangtze River floodplain considering consolidation degree |
| title_short | Experimental study on the dynamic shear modulus and damping ratio of structural soft soils from the Yangtze River floodplain considering consolidation degree |
| title_sort | experimental study on the dynamic shear modulus and damping ratio of structural soft soils from the yangtze river floodplain considering consolidation degree |
| topic | structural soft soil dynamic shear modulus damping ratio initial static stress degree of consolidation |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2025.1648806/full |
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