An analysis of active earth pressure of cohesive soil based on the layering of principal stress traces
The rough back of a wall causes the deflection of the soil stress direction behind the wall. At present, there are few studies on the influence of the deflection of the soil stress direction on the earth pressure in cohesive soils. For this reason, this paper firstly discusses the deflection law of...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Office of Hydrogeology & Engineering Geology
2021-11-01
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| Series: | Shuiwen dizhi gongcheng dizhi |
| Subjects: | |
| Online Access: | https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202103006 |
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| author | Jiayu WANG Wengui CAO Yubo WANG Huijie ZHANG |
| author_facet | Jiayu WANG Wengui CAO Yubo WANG Huijie ZHANG |
| author_sort | Jiayu WANG |
| collection | DOAJ |
| description | The rough back of a wall causes the deflection of the soil stress direction behind the wall. At present, there are few studies on the influence of the deflection of the soil stress direction on the earth pressure in cohesive soils. For this reason, this paper firstly discusses the deflection law of the principal stress of the soil behind the wall, and adopts a layered formation of curved thin-layer elements along the principal stress trace. By analyzing the force of the curved thin-layer element, the static balance equation of the curved thin-layer element is established, and the formula for the distribution of the earth pressure of the cohesive soil along the wall height in the translational mode is derived, and the new analysis method of the cohesive earth pressure is obtained. Finally, the method in this paper is compared with the actual measurement results and the existing theory and the parameters are analyzed to verify the reliability and rationality of the method in this paper. The research results show that the calculation results considering the effect of wall-soil friction can more accurately reflect the distribution law of cohesive soil along the wall height; the magnitude of earth pressure decreases with the increasing cohesion. With the increase of wall-soil friction angle soil, the pressure resultant force gradually decreases, and the height of the point of application increases slowly. |
| first_indexed | 2024-04-10T16:45:22Z |
| format | Article |
| id | doaj.art-5f8fc8ad6edc4a71a494f5e880997bd9 |
| institution | Directory Open Access Journal |
| issn | 1000-3665 |
| language | zho |
| last_indexed | 2024-04-10T16:45:22Z |
| publishDate | 2021-11-01 |
| publisher | Editorial Office of Hydrogeology & Engineering Geology |
| record_format | Article |
| series | Shuiwen dizhi gongcheng dizhi |
| spelling | doaj.art-5f8fc8ad6edc4a71a494f5e880997bd92023-02-08T01:28:48ZzhoEditorial Office of Hydrogeology & Engineering GeologyShuiwen dizhi gongcheng dizhi1000-36652021-11-01486818810.16030/j.cnki.issn.1000-3665.202103006202103006An analysis of active earth pressure of cohesive soil based on the layering of principal stress tracesJiayu WANG0Wengui CAO1Yubo WANG2Huijie ZHANG3School of Civil Engineering, Hunan University, Changsha, Hunan 410082, ChinaSchool of Civil Engineering, Hunan University, Changsha, Hunan 410082, ChinaSchool of Civil Engineering, Hunan University, Changsha, Hunan 410082, ChinaSchool of Civil Engineering, Hunan University, Changsha, Hunan 410082, ChinaThe rough back of a wall causes the deflection of the soil stress direction behind the wall. At present, there are few studies on the influence of the deflection of the soil stress direction on the earth pressure in cohesive soils. For this reason, this paper firstly discusses the deflection law of the principal stress of the soil behind the wall, and adopts a layered formation of curved thin-layer elements along the principal stress trace. By analyzing the force of the curved thin-layer element, the static balance equation of the curved thin-layer element is established, and the formula for the distribution of the earth pressure of the cohesive soil along the wall height in the translational mode is derived, and the new analysis method of the cohesive earth pressure is obtained. Finally, the method in this paper is compared with the actual measurement results and the existing theory and the parameters are analyzed to verify the reliability and rationality of the method in this paper. The research results show that the calculation results considering the effect of wall-soil friction can more accurately reflect the distribution law of cohesive soil along the wall height; the magnitude of earth pressure decreases with the increasing cohesion. With the increase of wall-soil friction angle soil, the pressure resultant force gradually decreases, and the height of the point of application increases slowly.https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202103006retaining wallcohesive soilactive earth pressuresoil arching effectprincipal stress traces |
| spellingShingle | Jiayu WANG Wengui CAO Yubo WANG Huijie ZHANG An analysis of active earth pressure of cohesive soil based on the layering of principal stress traces Shuiwen dizhi gongcheng dizhi retaining wall cohesive soil active earth pressure soil arching effect principal stress traces |
| title | An analysis of active earth pressure of cohesive soil based on the layering of principal stress traces |
| title_full | An analysis of active earth pressure of cohesive soil based on the layering of principal stress traces |
| title_fullStr | An analysis of active earth pressure of cohesive soil based on the layering of principal stress traces |
| title_full_unstemmed | An analysis of active earth pressure of cohesive soil based on the layering of principal stress traces |
| title_short | An analysis of active earth pressure of cohesive soil based on the layering of principal stress traces |
| title_sort | analysis of active earth pressure of cohesive soil based on the layering of principal stress traces |
| topic | retaining wall cohesive soil active earth pressure soil arching effect principal stress traces |
| url | https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202103006 |
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