Slope stability analysis considering seepage and stress coupling under water level fluctuation
The reservoir water level fluctuation is an important factor inducing the reaction of pore-water pressure, seepage and at last resulting in instability and failure of the slope. A typical homogeneous slope is conducted as an example in this paper, the seepage and stress coupling effect is considered...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2021-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/52/e3sconf_wchbe2021_01028.pdf |
| _version_ | 1818723595135746048 |
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| author | YiLiang Zhou Ming Li ZiLong Li |
| author_facet | YiLiang Zhou Ming Li ZiLong Li |
| author_sort | YiLiang Zhou |
| collection | DOAJ |
| description | The reservoir water level fluctuation is an important factor inducing the reaction of pore-water pressure, seepage and at last resulting in instability and failure of the slope. A typical homogeneous slope is conducted as an example in this paper, the seepage and stress coupling effect is considered, and the slope stability calculation and analysis are carried out by using the finite element stress method. The results demonstrate that the factor of safety increases with the reservoir water level rises, and then gradually changes from decrease to stabilization. It should be noted that the factor of safety decreases slightly during the initial stage of water level rising at the speed of 0.2 m/d, which the slope will probably lose its stability. On the other, the factor of safety changes from decrease to increase along with the reservoir water level drawdown, and then gradually tends to stabilization. There is a minimum factor of safety when the water level is at about 1/4 of the slope height, and the minimum factor of safety decreases with increasing drawdown speed, just as the factor of safety decreases from 0.83 to 0.73 when the drawdown speed is increased from 0.20 m/d to 5.0 m/d. |
| first_indexed | 2024-12-17T21:13:01Z |
| format | Article |
| id | doaj.art-79ba22e348a540c9a914bd4855aa98d8 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-17T21:13:01Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-79ba22e348a540c9a914bd4855aa98d82022-12-21T21:32:24ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012760102810.1051/e3sconf/202127601028e3sconf_wchbe2021_01028Slope stability analysis considering seepage and stress coupling under water level fluctuationYiLiang Zhou0Ming Li1ZiLong Li2School of Civil Engineering, University of south ChinaSchool of Civil Engineering, University of south ChinaSchool of Civil Engineering, University of south ChinaThe reservoir water level fluctuation is an important factor inducing the reaction of pore-water pressure, seepage and at last resulting in instability and failure of the slope. A typical homogeneous slope is conducted as an example in this paper, the seepage and stress coupling effect is considered, and the slope stability calculation and analysis are carried out by using the finite element stress method. The results demonstrate that the factor of safety increases with the reservoir water level rises, and then gradually changes from decrease to stabilization. It should be noted that the factor of safety decreases slightly during the initial stage of water level rising at the speed of 0.2 m/d, which the slope will probably lose its stability. On the other, the factor of safety changes from decrease to increase along with the reservoir water level drawdown, and then gradually tends to stabilization. There is a minimum factor of safety when the water level is at about 1/4 of the slope height, and the minimum factor of safety decreases with increasing drawdown speed, just as the factor of safety decreases from 0.83 to 0.73 when the drawdown speed is increased from 0.20 m/d to 5.0 m/d.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/52/e3sconf_wchbe2021_01028.pdf |
| spellingShingle | YiLiang Zhou Ming Li ZiLong Li Slope stability analysis considering seepage and stress coupling under water level fluctuation E3S Web of Conferences |
| title | Slope stability analysis considering seepage and stress coupling under water level fluctuation |
| title_full | Slope stability analysis considering seepage and stress coupling under water level fluctuation |
| title_fullStr | Slope stability analysis considering seepage and stress coupling under water level fluctuation |
| title_full_unstemmed | Slope stability analysis considering seepage and stress coupling under water level fluctuation |
| title_short | Slope stability analysis considering seepage and stress coupling under water level fluctuation |
| title_sort | slope stability analysis considering seepage and stress coupling under water level fluctuation |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/52/e3sconf_wchbe2021_01028.pdf |
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