GENERATION OF CRACKS IN HIGHWAY EMBANKMENT ON BLACK COTTON SOIL
This research revealed the crack generation of the highway embankment from the water losing shrinkage of the wet black cotton soil (BCS), which is a type of soil with high swell-shrink potential. The road seepage meter was used to test the permeability of filling materials, which was used to replace...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Czech Technical University, Prague
2021-04-01
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| Series: | Civil Engineering Journal |
| Subjects: | |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/cej/article/view/7167 |
| _version_ | 1797722910914248704 |
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| author | Yongzhen Cheng Yun Dong Jingke Wu Baoliang Li Jihua Zhang |
| author_facet | Yongzhen Cheng Yun Dong Jingke Wu Baoliang Li Jihua Zhang |
| author_sort | Yongzhen Cheng |
| collection | DOAJ |
| description | This research revealed the crack generation of the highway embankment from the water losing shrinkage of the wet black cotton soil (BCS), which is a type of soil with high swell-shrink potential. The road seepage meter was used to test the permeability of filling materials, which was used to replace BCS. The moisture content and embankment deflection of BCS foundation were measured after the rainy season. Based on the coupled consolidation theory for unsaturated soil, the change in additional tension stress of the embankment induced by water loss shrinkage of BCS was simulated by Abaqus. The results indicated that the rainfall seeped into the foundation through highly permeable refill materials to result in BCS expansion and decrease the embankment strength. After the rainy season, the additional tensile stress caused by water loss shrinkage of BCS induces cracking of highway embankment, and the maximum cracking depth often appears at the shoulder of highway. The deep and wide cracks are easy to appear in the low embankment constructed on a thick BCS foundation under strong evaporation. |
| first_indexed | 2024-03-12T09:55:32Z |
| format | Article |
| id | doaj.art-7b1196fdba5e4e98917667d27815a1d8 |
| institution | Directory Open Access Journal |
| issn | 1805-2576 |
| language | English |
| last_indexed | 2024-03-12T09:55:32Z |
| publishDate | 2021-04-01 |
| publisher | Czech Technical University, Prague |
| record_format | Article |
| series | Civil Engineering Journal |
| spelling | doaj.art-7b1196fdba5e4e98917667d27815a1d82023-09-02T12:16:16ZengCzech Technical University, PragueCivil Engineering Journal1805-25762021-04-0130110.14311/CEJ.2021.01.00064405GENERATION OF CRACKS IN HIGHWAY EMBANKMENT ON BLACK COTTON SOILYongzhen Cheng0Yun Dong1Jingke Wu2Baoliang Li3Jihua Zhang4 Huaiyin Institute of Technology, Faculty of Architecture and Civil Engineering, Huai'an, No.89 Beijing North Road, ChinaHuaiyin Institute of Technology, Faculty of Architecture and Civil Engineering, Huai'an, No.89 Beijing North Road, ChinaHuaiyin Institute of Technology, Faculty of Architecture and Civil Engineering, Huai'an, No.89 Beijing North Road, ChinaHuaiyin Institute of Technology, Faculty of Architecture and Civil Engineering, Huai'an, No.89 Beijing North Road, ChinaHuaiyin Institute of Technology, Faculty of Architecture and Civil Engineering, Huai'an, No.89 Beijing North Road, ChinaThis research revealed the crack generation of the highway embankment from the water losing shrinkage of the wet black cotton soil (BCS), which is a type of soil with high swell-shrink potential. The road seepage meter was used to test the permeability of filling materials, which was used to replace BCS. The moisture content and embankment deflection of BCS foundation were measured after the rainy season. Based on the coupled consolidation theory for unsaturated soil, the change in additional tension stress of the embankment induced by water loss shrinkage of BCS was simulated by Abaqus. The results indicated that the rainfall seeped into the foundation through highly permeable refill materials to result in BCS expansion and decrease the embankment strength. After the rainy season, the additional tensile stress caused by water loss shrinkage of BCS induces cracking of highway embankment, and the maximum cracking depth often appears at the shoulder of highway. The deep and wide cracks are easy to appear in the low embankment constructed on a thick BCS foundation under strong evaporation.https://ojs.cvut.cz/ojs/index.php/cej/article/view/7167embankment crack, black cotton soil, moisture change, shrinkage, tension stress |
| spellingShingle | Yongzhen Cheng Yun Dong Jingke Wu Baoliang Li Jihua Zhang GENERATION OF CRACKS IN HIGHWAY EMBANKMENT ON BLACK COTTON SOIL Civil Engineering Journal embankment crack, black cotton soil, moisture change, shrinkage, tension stress |
| title | GENERATION OF CRACKS IN HIGHWAY EMBANKMENT ON BLACK COTTON SOIL |
| title_full | GENERATION OF CRACKS IN HIGHWAY EMBANKMENT ON BLACK COTTON SOIL |
| title_fullStr | GENERATION OF CRACKS IN HIGHWAY EMBANKMENT ON BLACK COTTON SOIL |
| title_full_unstemmed | GENERATION OF CRACKS IN HIGHWAY EMBANKMENT ON BLACK COTTON SOIL |
| title_short | GENERATION OF CRACKS IN HIGHWAY EMBANKMENT ON BLACK COTTON SOIL |
| title_sort | generation of cracks in highway embankment on black cotton soil |
| topic | embankment crack, black cotton soil, moisture change, shrinkage, tension stress |
| url | https://ojs.cvut.cz/ojs/index.php/cej/article/view/7167 |
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