Study of the impact of reservoir water level decline on the stability treated landslide on reservoir bank
Affected by the reservoir water and rainfall and other factors, the stability of the landslide changes with the different reservoir water level decline rate. Using the Baota landslide in Yunyang County in Three Gorges Reservoir region as an example, and applying the saturated-unsaturated numerical s...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-02-01
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| Series: | Alexandria Engineering Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110016822006986 |
| _version_ | 1811163502721630208 |
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| author | Ningtao Wang Lei Liu Tingting Shi Yun Wang Jue Huang Runqing Ye Zhipeng Lian |
| author_facet | Ningtao Wang Lei Liu Tingting Shi Yun Wang Jue Huang Runqing Ye Zhipeng Lian |
| author_sort | Ningtao Wang |
| collection | DOAJ |
| description | Affected by the reservoir water and rainfall and other factors, the stability of the landslide changes with the different reservoir water level decline rate. Using the Baota landslide in Yunyang County in Three Gorges Reservoir region as an example, and applying the saturated-unsaturated numerical simulation method, the groundwater seepage field is calculated when the reservoir water level rises and declines. The calculated pore water pressure is used for the ultimate equilibrium analysis of landslide, and the effect of reservoir water level drop on landslide stability was discussed. The calculation results show that with the water level falling from 159 m to 145 m, and the increase of the rate of decline in the reservoir water level, the decline in groundwater seepage lines has increased somewhat. The landslide stability coefficient calculated under each working condition is larger than that in the original design, and the decrease rate of reservoir water has a qualitative effect on the stability of the landslide, but the influence is very small. Through the SBAS-InSAR time series monitoring of Sentinel-1 data in the 13th period and field verification, it is found that the cumulative deformation of the slope is small, which prove the stability of the landslide. |
| first_indexed | 2024-04-10T15:06:14Z |
| format | Article |
| id | doaj.art-425384ffd54f448dab3c018d40051d06 |
| institution | Directory Open Access Journal |
| issn | 1110-0168 |
| language | English |
| last_indexed | 2024-04-10T15:06:14Z |
| publishDate | 2023-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Alexandria Engineering Journal |
| spelling | doaj.art-425384ffd54f448dab3c018d40051d062023-02-15T04:27:11ZengElsevierAlexandria Engineering Journal1110-01682023-02-0165481492Study of the impact of reservoir water level decline on the stability treated landslide on reservoir bankNingtao Wang0Lei Liu1Tingting Shi2Yun Wang3Jue Huang4Runqing Ye5Zhipeng Lian6Institute of Geological Survey, China University of Geosciences, Wuhan 430074, China; Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences), Wuhan 430205, ChinaInstitute of Geological Survey, China University of Geosciences, Wuhan 430074, China; Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences), Wuhan 430205, ChinaBadong National Observation and Research Station of Geohazards, China University of Geosciences, Wuhan 430074, China; Corresponding author.Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences), Wuhan 430205, ChinaWuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences), Wuhan 430205, ChinaInstitute of Geological Survey, China University of Geosciences, Wuhan 430074, China; Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences), Wuhan 430205, ChinaWuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences), Wuhan 430205, ChinaAffected by the reservoir water and rainfall and other factors, the stability of the landslide changes with the different reservoir water level decline rate. Using the Baota landslide in Yunyang County in Three Gorges Reservoir region as an example, and applying the saturated-unsaturated numerical simulation method, the groundwater seepage field is calculated when the reservoir water level rises and declines. The calculated pore water pressure is used for the ultimate equilibrium analysis of landslide, and the effect of reservoir water level drop on landslide stability was discussed. The calculation results show that with the water level falling from 159 m to 145 m, and the increase of the rate of decline in the reservoir water level, the decline in groundwater seepage lines has increased somewhat. The landslide stability coefficient calculated under each working condition is larger than that in the original design, and the decrease rate of reservoir water has a qualitative effect on the stability of the landslide, but the influence is very small. Through the SBAS-InSAR time series monitoring of Sentinel-1 data in the 13th period and field verification, it is found that the cumulative deformation of the slope is small, which prove the stability of the landslide.http://www.sciencedirect.com/science/article/pii/S1110016822006986Reservoir bank landslideReservoir water dropTreated landslideStability evaluation |
| spellingShingle | Ningtao Wang Lei Liu Tingting Shi Yun Wang Jue Huang Runqing Ye Zhipeng Lian Study of the impact of reservoir water level decline on the stability treated landslide on reservoir bank Alexandria Engineering Journal Reservoir bank landslide Reservoir water drop Treated landslide Stability evaluation |
| title | Study of the impact of reservoir water level decline on the stability treated landslide on reservoir bank |
| title_full | Study of the impact of reservoir water level decline on the stability treated landslide on reservoir bank |
| title_fullStr | Study of the impact of reservoir water level decline on the stability treated landslide on reservoir bank |
| title_full_unstemmed | Study of the impact of reservoir water level decline on the stability treated landslide on reservoir bank |
| title_short | Study of the impact of reservoir water level decline on the stability treated landslide on reservoir bank |
| title_sort | study of the impact of reservoir water level decline on the stability treated landslide on reservoir bank |
| topic | Reservoir bank landslide Reservoir water drop Treated landslide Stability evaluation |
| url | http://www.sciencedirect.com/science/article/pii/S1110016822006986 |
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