Use of Monitoring Data to Interpret Active Landslide Movements and Hydrological Triggers in Three Gorges Reservoir

Huang, Haifeng; Yi, Wu; Lu, Shuqiang; Yi, Qinglin; Zhang, Guodong

doi:10.1061/(asce)cf.1943-5509.0000682

Cited by 22 publications

(21 citation statements)

References 15 publications

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“…accordance with other studies in the literature (Huang et al, 2014). Hence, it seems that keeping the reservoir on the second regime, thus maintaining the reservoir level above the piezometric level, would allow the landslide to be controlled easier, since increasing the lake level would decelerate the slope.…”

Section: Journal Of Geophysical Research: Earth Surfacesupporting

confidence: 90%

“…In particular, the Shuping landslide has a sliding mass thickness between 30 and 70 m and a total sliding rock volume of 2.7 × 10 7 m 3 (Figure 6c). Observations have shown that the landslide accelerates when the reservoir's level decreases, but the slide remains stable when the reservoir's level rises (Figure 6d) (Huang et al, 2014). Thus, from the field data, it can be seen that the Shuping landslide exhibits an opposite behavior from the Vaiont landslide (which accelerates when the lake level increases).…”

Section: Case Study: Shuping Landslidementioning

confidence: 96%

“…Velocity data from the field (calculated from the displacement obtained from Huang et al, 2014) shown as black dashed line. Velocity calculated from the model as blue.…”

Section: Case Study: Shuping Landslidementioning

confidence: 99%

“…For the Vaiont slide, we study the two years of creep until its collapse, reproducing the velocity history as provided by Muller (1964Muller ( , 1968. Similarly, in the case of the Shuping landslide, we study 5 years of its creeping phase (remaining active nowadays), reproducing the velocity history retrieved from Huang et al (2014). We have chosen these two landslides as characteristic examples of large deep-seated landslides that have been very well documented.…”

Section: Introductionmentioning

confidence: 99%

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On the Stability of Deep‐Seated Landslides. The Cases of Vaiont (Italy) and Shuping (Three Gorges Dam, China)

2020

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Deep-seated landslides can have catastrophic impacts on human life and infrastructure when they suddenly fail. These events are devastating because of the large volumes of soil and rock masses involved and their often long runout. The present study suggests an energy-based method to determine when a landslide becomes unstable, giving critical values for measurable variables (velocity and basal temperature) up to which remediation actions can be deployed. This work focuses on large ancient landslides reactivated by dam-related water table variations that modify landslide stability. The main hypothesis of this work is that most of the deformation of deep-seated landslides is concentrated on a thin, basal shear band forming the sliding surface. In particular, this assumption allows an approximation of deep-seated landslides as elastic/rigid blocks sliding over a viscoplastic shear band, featuring weak phases like expansive clays. When the landslide moves, it causes friction in the shear band that raises the temperature of the clays until they become unstable and collapse catastrophically through a thermal runaway instability. The model is applied to the Vaiont landslide in Northern Italy and the Shuping landslide next to the Three Gorges Dam in China. The results of the model reproduce the sliding behavior of both landslides and provide constraints on the critical points of stability.

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Section: Journal Of Geophysical Research: Earth Surfacesupporting

confidence: 90%

Section: Case Study: Shuping Landslidementioning

confidence: 96%

“…Velocity data from the field (calculated from the displacement obtained from Huang et al, 2014) shown as black dashed line. Velocity calculated from the model as blue.…”

Section: Case Study: Shuping Landslidementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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On the Stability of Deep‐Seated Landslides. The Cases of Vaiont (Italy) and Shuping (Three Gorges Dam, China)

2020

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“…Similar findings have been reported for the Berkeley Hills slide (up to 3 months of lag time) [4], Portuguese Bend landslide in southern California (2-6 weeks of lag time) [5], and Jinlongshan slide in Southwest China (1-2 months of lag time) [6]. Haifeng Huang et al [7] reported that the Shuping landslide located in Three Gorges Reservoir exhibits a lag time of approximately 6 days after the reservoir water level is reduced.…”

Section: Introductionsupporting

confidence: 78%

An Attempt to Quantify the Lag Time of Hydrodynamic Action Based on the Long-Term Monitoring of a Typical Landslide, Three Gorges, China

Chen

Zhang

et al. 2018

Mathematical Problems in Engineering

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Hydrodynamic action plays an important role in the development of reservoir bank accumulational landslides. Despite recent concern over hydrodynamic action’s hysteresis effects, there is still no unified efficient method for quantifying lag time, which is a critical input to landslide prediction and early warning systems. To address this shortcoming, we selected a typical landslide, located in Three Gorges Reservoir, China, as a case study. On the basis of long-term monitoring data, we suggest that correlation analysis may work and attempt to use linear correlation first to quantify the lag time. We conclude that, from the macroscopic behavior point of view, linear correlation analysis does not work; neither the daily reservoir water level and its variation nor the daily rainfall and its accumulation exhibit a linear relationship with the surface accumulative displacement. Future studies will use nonlinear correlation analysis to analyze data by different time segments as the hydrodynamic factors have different effects in different periods.

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Use of multi-source remote sensing images to describe the sudden Shanshucao landslide in the Three Gorges Reservoir, China

Huang

Song

et al. 2018

Bull Eng Geol Environ

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Use of Monitoring Data to Interpret Active Landslide Movements and Hydrological Triggers in Three Gorges Reservoir

Cited by 22 publications

References 15 publications

On the Stability of Deep‐Seated Landslides. The Cases of Vaiont (Italy) and Shuping (Three Gorges Dam, China)

On the Stability of Deep‐Seated Landslides. The Cases of Vaiont (Italy) and Shuping (Three Gorges Dam, China)

An Attempt to Quantify the Lag Time of Hydrodynamic Action Based on the Long-Term Monitoring of a Typical Landslide, Three Gorges, China

Use of multi-source remote sensing images to describe the sudden Shanshucao landslide in the Three Gorges Reservoir, China

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