Stability Assessment and Stabilizing Approaches for the Majiagou Landslide, Undergoing the Effects of Water Level Fluctuation in the Three Gorges Reservoir Area

Li, Tonglu; Zhang, Changliang; Ping, Xu; Ping, Li

doi:10.1007/978-3-642-00132-1_14

Cited by 7 publications

(7 citation statements)

References 1 publication

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“…ey analyzed the factor of safety under the conditions of static water level and water sudden drawdown in graphical form. Li et al [22] presented a landslide case on reservoir bank which shows that the factor of safety decreases firstly and then increases with the rise of water level, which agrees with the results of Cojean and Fleurisson [20]. e analytical solution for water drawdown slopes still is not available.…”

Section: Introductionmentioning

confidence: 66%

An Extension of Taylor’s φ‐Circle Method and Some Stability Charts for Submerged Slopes

Ping

Dong

Gao

et al. 2020

Advances in Civil Engineering

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Taylor’s φ-circle method is a classical method for slope stability calculation, which has analytical solutions. Taylor derived equations in two cases separately, namely, (i) the outlet of the critical failure surface is at the slope toe and (ii) the outlet of the failure surfaces is not at the slope toe. The method is only appropriate for two conditions (without underground water table in slopes or totally submerged slopes). In this study, a general equation that unifies the equations of the two cases is proposed and partially submerged condition is introduced. The critical failure surfaces corresponding to the minimum factor of safety are determined using the computer program proposed by the authors. The general expression of the safety factor of slopes under the following four conditions is derived, namely, (i) partly submerged, (ii) completely submerged, (iii) water sudden drawdown, and (iv) water slow drawdown. The corresponding charts for practical use are available.

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Section: Introductionmentioning

confidence: 66%

An Extension of Taylor’s φ‐Circle Method and Some Stability Charts for Submerged Slopes

Ping

Dong

Gao

et al. 2020

Advances in Civil Engineering

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“…By contrast, a deterministic analysis can only produce an overall slope failure. It is worth noting that local slip failures did occur in reality (e.g., Canuti et al, 2005;Du et al, 2013;Li et al, 2009). This fact highlights the importance of considering spatial variability in slope stability analyses.…”

Section: Determining the Number Of Monte Carlo Simulationmentioning

confidence: 97%

Effect of spatial variability of shear strength parameters on critical slip surfaces of slopes

2018

Engineering Geology

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“…At present, there are few systematic studies on the self-adaptive mechanism of the deformation of landslide accumulation, and most of them are focused on the strength regeneration of slip zone soils [6][7][8][9]. Li carried out consolidation and shear tests on the slip zone soil of the Sanmashan landslide and Outang landslide and verified that the strength regeneration of the slip zone soil resulted from the rise and fall of the reservoir water level [10]. Furthermore, the strength regeneration mechanism of the slip zone soil was analyzed [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…It was concluded that with the increase in dry-wet cycles, the permeability coefficient increased gradually [21]. The measured groundwater level data was used to quantitatively calculate the permeability changes of the Xigouwan landslide [22]. It was concluded that after the first water level rise and fall in 2008, the permeability coefficient increased by a multiple of 1.5-3.…”

Section: Introductionmentioning

confidence: 99%

Physical Model Test of Deformation Self-Adaptive Mechanism of Landslide Mass

Yang,

Tang,

Xiao

et al. 2024

Water

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Reservoir impoundment induces a large amount of cumulative deformation of landslide body, leading to damage to the geological environment. Due to many yearly cycles of reservoir water fluctuation, the cumulative deformation of landslides tends to be stable, showing a self-adaptive deformation phenomenon. The study of the self-adaptive deformation mechanism is very important for evaluating landslide stability and achieving the safe operation of hydropower stations. To study the mechanism of self-adaptive deformation, two sets of physical models were used to monitor the groundwater, earth pressure, and cumulative deformation of landslide under periodic fluctuations of the reservoir water level. The results showed that the soil consolidation compaction, release of sliding stress, and increase in permeability are the three main factors of the self-adaptive deformation of landslide accumulation. The overall permeability decreased first and then increased, the front permeability increased greatly, and the middle and rear permeability decreased. The main factors that affected the permeability change were deformation and seepage force.

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Stability Assessment and Stabilizing Approaches for the Majiagou Landslide, Undergoing the Effects of Water Level Fluctuation in the Three Gorges Reservoir Area

Cited by 7 publications

References 1 publication

An Extension of Taylor’s φ‐Circle Method and Some Stability Charts for Submerged Slopes

An Extension of Taylor’s φ‐Circle Method and Some Stability Charts for Submerged Slopes

Effect of spatial variability of shear strength parameters on critical slip surfaces of slopes

Physical Model Test of Deformation Self-Adaptive Mechanism of Landslide Mass

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