Experimental research on consolidation creep characteristics and microstructure evolution of soft soil
The influence of creep deformation of soft soil on engineering construction can’t be ignored. In order to deeply understand the macroscopic mechanical properties and the evolution mechanism of soft soil in microscope during consolidation creep, one-dimensional consolidation creep tests and SEM tests...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-02-01
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| Series: | Frontiers in Materials |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2023.1137324/full |
| _version_ | 1797905082315964416 |
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| author | Jie Yuan Yuexin Gan Jian Chen Songming Tan Jitong Zhao |
| author_facet | Jie Yuan Yuexin Gan Jian Chen Songming Tan Jitong Zhao |
| author_sort | Jie Yuan |
| collection | DOAJ |
| description | The influence of creep deformation of soft soil on engineering construction can’t be ignored. In order to deeply understand the macroscopic mechanical properties and the evolution mechanism of soft soil in microscope during consolidation creep, one-dimensional consolidation creep tests and SEM tests of Nansha soft soil were carried out in this paper. Then the image processing was performed by Image J software to obtain the consolidation creep characteristics, microscopic parameters of particles and pores under different loading pressures. The results of experiment and image processing show that 1) The creep process of Nansha soft soil is divided into the initial instantaneous deformation phase, the attenuation creep phase and the stable creep phase. The creep deformation increases with the consolidation creep stress during the three phases. 2) During the creep process, the distance between particles decreases and some particles are gradually broken, the quantity of particles and pores increases but the volume of them decreases. At the same time, the shape of particles and pores changes from nearly round and strip to nearly oval. 3) The consolidation creep stress determines the particles distance and the degree of fragmentation. And this trend is more obvious with the increase of the consolidation creep stress. |
| first_indexed | 2024-04-10T09:59:23Z |
| format | Article |
| id | doaj.art-e39423da81104a36b838013185c03ada |
| institution | Directory Open Access Journal |
| issn | 2296-8016 |
| language | English |
| last_indexed | 2024-04-10T09:59:23Z |
| publishDate | 2023-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj.art-e39423da81104a36b838013185c03ada2023-02-16T11:17:35ZengFrontiers Media S.A.Frontiers in Materials2296-80162023-02-011010.3389/fmats.2023.11373241137324Experimental research on consolidation creep characteristics and microstructure evolution of soft soilJie YuanYuexin GanJian ChenSongming TanJitong ZhaoThe influence of creep deformation of soft soil on engineering construction can’t be ignored. In order to deeply understand the macroscopic mechanical properties and the evolution mechanism of soft soil in microscope during consolidation creep, one-dimensional consolidation creep tests and SEM tests of Nansha soft soil were carried out in this paper. Then the image processing was performed by Image J software to obtain the consolidation creep characteristics, microscopic parameters of particles and pores under different loading pressures. The results of experiment and image processing show that 1) The creep process of Nansha soft soil is divided into the initial instantaneous deformation phase, the attenuation creep phase and the stable creep phase. The creep deformation increases with the consolidation creep stress during the three phases. 2) During the creep process, the distance between particles decreases and some particles are gradually broken, the quantity of particles and pores increases but the volume of them decreases. At the same time, the shape of particles and pores changes from nearly round and strip to nearly oval. 3) The consolidation creep stress determines the particles distance and the degree of fragmentation. And this trend is more obvious with the increase of the consolidation creep stress.https://www.frontiersin.org/articles/10.3389/fmats.2023.1137324/fullsoft soilsoil creepconsolidation creep testmicrostructureSEM |
| spellingShingle | Jie Yuan Yuexin Gan Jian Chen Songming Tan Jitong Zhao Experimental research on consolidation creep characteristics and microstructure evolution of soft soil Frontiers in Materials soft soil soil creep consolidation creep test microstructure SEM |
| title | Experimental research on consolidation creep characteristics and microstructure evolution of soft soil |
| title_full | Experimental research on consolidation creep characteristics and microstructure evolution of soft soil |
| title_fullStr | Experimental research on consolidation creep characteristics and microstructure evolution of soft soil |
| title_full_unstemmed | Experimental research on consolidation creep characteristics and microstructure evolution of soft soil |
| title_short | Experimental research on consolidation creep characteristics and microstructure evolution of soft soil |
| title_sort | experimental research on consolidation creep characteristics and microstructure evolution of soft soil |
| topic | soft soil soil creep consolidation creep test microstructure SEM |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2023.1137324/full |
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