Deterministic and probabilistic analysis of a multi-sliding zone reservoir bank landslide influenced by the combined effects of reservoir water level fluctuation and precipitation

Zhang, Wengang; He, Xiangrong; Wang, Luqi; Meng, Xuanyu; Liu, Songlin

doi:10.1007/s10064-024-03675-0

Bull Eng Geol Environ

2024

DOI: 10.1007/s10064-024-03675-0

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Deterministic and probabilistic analysis of a multi-sliding zone reservoir bank landslide influenced by the combined effects of reservoir water level fluctuation and precipitation

Wengang Zhang,

Xiangrong He,

Luqi Wang

et al.

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2024

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Cited by 3 publications

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Probabilistic back analysis of reservoir landslide considering hydro-mechanical coupled observations

Xue,

Miao,

et al. 2024

Computers and Geotechnics

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Probabilistic back analysis of reservoir landslide considering hydro-mechanical coupled observations

Xue,

Miao,

et al. 2024

Computers and Geotechnics

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Investigation on internal evolution process of slope under seismic loading: insights from a transparent soil test and shaking table test

Zhang,

He,

et al. 2024

Transportation Geotechnics

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Unveiling the prediction model and mechanism of the collapse of bank slope in the lancangjiang area

An,

Guo,

et al. 2024

Front. Earth Sci.

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This study takes the bank collapse at the left bank of Badi Township of the Lidi Hydropower Station in the Lancang Area as an example. To address the lack of in-depth research on the prediction model and mechanisms of bank collapse, this study conducts field drilling surveys, investigates influencing factors, analyzes causal mechanisms, and proposes prediction methods based on the geological survey data of bank collapse in the reservoir area. The study explores the stratigraphic lithology, determines the key parameters for bank collapse prediction, and studies the failure modes and bank collapse mechanisms. It also proposes the finite element method of bank collapse to predict the width and elevation of bank collapse and provides the influence on the surrounding environment. The results show that the collapsed bank on the left bank of Badi Township is a high and steep soil-like slope, and forms the collapse and retreat type of failure mode after impoundment. The Kachukin method, the bank slope structure method, and the proposed finite element method are used to predict the width and elevation of the collapsed bank. The results indicate that the Kachujin method predicts a larger range of bank collapses and is biased towards safety. In contrast, the prediction ranges of the bank slope structure method and the finite element method are close. The bank collapse position is located in the middle and rear of the residential houses in Badi Township, which is consistent with the on-site investigation and has strong reliability. The predicted width of the bank collapse is about 34 m and the elevation is about 1,845 m. The research results can be directly applied to preventing and controlling bank collapse and have powerful practical application value.

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Deterministic and probabilistic analysis of a multi-sliding zone reservoir bank landslide influenced by the combined effects of reservoir water level fluctuation and precipitation

Cited by 3 publications

References 45 publications

Probabilistic back analysis of reservoir landslide considering hydro-mechanical coupled observations

Probabilistic back analysis of reservoir landslide considering hydro-mechanical coupled observations

Investigation on internal evolution process of slope under seismic loading: insights from a transparent soil test and shaking table test

Unveiling the prediction model and mechanism of the collapse of bank slope in the lancangjiang area

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