Unsaturated seepage and stress coupling of reservoir landslides considering the water-induced deterioration effect

Water has an obvious degrading effect on the mechanical parameters of rock and soil.In this paper, triaxial tests of landslide deposits under different water content conditions were carried out, and empirical equations between saturation and mechanical parameters were established. Besides, secondary...

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Main Authors: Zihua Jiang, Huanling Wang
Format: Article
Language:zho
Published: Editorial Department of Bulletin of Geological Science and Technology 2022-11-01
Series:地质科技通报
Subjects:
Online Access:https://dzkjqb.cug.edu.cn/en/article/doi/10.19509/j.cnki.dzkq.2022.0216
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author Zihua Jiang
Huanling Wang
author_facet Zihua Jiang
Huanling Wang
author_sort Zihua Jiang
collection DOAJ
description Water has an obvious degrading effect on the mechanical parameters of rock and soil.In this paper, triaxial tests of landslide deposits under different water content conditions were carried out, and empirical equations between saturation and mechanical parameters were established. Besides, secondary development on the established empirical equation was also carried out. Based the coupling of saturation and mechanical parameters, the influence of sliding body mechanical parameter changes on the landslide stability can then be considered in the process of real-time changes in reservoir water level.By comparing the simulation results of the Dahua landslide in Lanping County, Yunnan Province during the rise of the reservoir water level with the field monitoring data, the rationality of considering the water-induced deterioration effect of the mechanical parameters of the sliding body was verified.In the end, the engineering application of the deformation evolution law of the Dahua landslide considering water-induced deterioration was carried out.
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spelling doaj.art-9c357f8f0589418dbb2292229baa2e6d2024-03-05T02:57:40ZzhoEditorial Department of Bulletin of Geological Science and Technology地质科技通报2096-85232022-11-0141611312210.19509/j.cnki.dzkq.2022.0216dzkjtb-41-6-113Unsaturated seepage and stress coupling of reservoir landslides considering the water-induced deterioration effectZihua Jiang0Huanling Wang1Geotechnical Research Institute, Hohai University, Nanjing 210098, ChinaGeotechnical Research Institute, Hohai University, Nanjing 210098, ChinaWater has an obvious degrading effect on the mechanical parameters of rock and soil.In this paper, triaxial tests of landslide deposits under different water content conditions were carried out, and empirical equations between saturation and mechanical parameters were established. Besides, secondary development on the established empirical equation was also carried out. Based the coupling of saturation and mechanical parameters, the influence of sliding body mechanical parameter changes on the landslide stability can then be considered in the process of real-time changes in reservoir water level.By comparing the simulation results of the Dahua landslide in Lanping County, Yunnan Province during the rise of the reservoir water level with the field monitoring data, the rationality of considering the water-induced deterioration effect of the mechanical parameters of the sliding body was verified.In the end, the engineering application of the deformation evolution law of the Dahua landslide considering water-induced deterioration was carried out.https://dzkjqb.cug.edu.cn/en/article/doi/10.19509/j.cnki.dzkq.2022.0216water-induced landslidewater-induced deteriorationsaturationsaturated-unsaturated seepagecoupling of seepage and stressdahua landslide
spellingShingle Zihua Jiang
Huanling Wang
Unsaturated seepage and stress coupling of reservoir landslides considering the water-induced deterioration effect
地质科技通报
water-induced landslide
water-induced deterioration
saturation
saturated-unsaturated seepage
coupling of seepage and stress
dahua landslide
title Unsaturated seepage and stress coupling of reservoir landslides considering the water-induced deterioration effect
title_full Unsaturated seepage and stress coupling of reservoir landslides considering the water-induced deterioration effect
title_fullStr Unsaturated seepage and stress coupling of reservoir landslides considering the water-induced deterioration effect
title_full_unstemmed Unsaturated seepage and stress coupling of reservoir landslides considering the water-induced deterioration effect
title_short Unsaturated seepage and stress coupling of reservoir landslides considering the water-induced deterioration effect
title_sort unsaturated seepage and stress coupling of reservoir landslides considering the water induced deterioration effect
topic water-induced landslide
water-induced deterioration
saturation
saturated-unsaturated seepage
coupling of seepage and stress
dahua landslide
url https://dzkjqb.cug.edu.cn/en/article/doi/10.19509/j.cnki.dzkq.2022.0216
work_keys_str_mv AT zihuajiang unsaturatedseepageandstresscouplingofreservoirlandslidesconsideringthewaterinduceddeteriorationeffect
AT huanlingwang unsaturatedseepageandstresscouplingofreservoirlandslidesconsideringthewaterinduceddeteriorationeffect