Reservoir-induced landslides and risk control in Three Gorges Project on Yangtze River, China

Yin, Yueping; Huang, Bolin; Wang, Wenpei; Wei, Yunjie; Ma, Xiaohan; Ma, Fanyuan; Zhao, Changjun

doi:10.1016/j.jrmge.2016.08.001

Cited by 194 publications

(74 citation statements)

References 38 publications

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“…A site-specific investigation showed that the crown crack reached approximately 6 m in width ( Figure 5), and 160 noticeable cracks are distributed on the landslide surface that endanger residents living at the landslide site. The residents living at the landslide site began to relocate in October 2014 due to these precarious circumstances (Yin et al 2016), and the residents' houses have since been demolished. For the purpose of landslide monitoring and early warning, a multiple monitoring system consisting of 37 GPS monuments and 17 inclinometer boreholes was installed on the landslide mass.…”

Section: Features Of the Outang Landslidementioning

confidence: 99%

Reliability analysis for a large and complex landslide in the three gorges reservoir area (China) based on incomplete information

Zhang

et al. 2018

Geomatics, Natural Hazards and Risk

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The soil parameters for large, complex landslides are typically derived from incomplete information based on a small sample set due to budgetary constraints. This informational incompleteness results in large statistical uncertainty in landslide reliability analyses. In this article, the bootstrap technique is proposed to quantify the statistical uncertainties associated with a small sample set, and a practice-oriented reliability analysis is performed. The results suggest that the obtained reliability indices are characterized by a long tail, in which the worst-case scenario has a local extreme value and a small population. The statistical uncertainties are quantified and characterized by a confidence interval at a specified confidence level. The confidence interval of the reliability index and identification of the worst-case scenario enable engineers to make more informed decisions. ARTICLE HISTORY

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Section: Features Of the Outang Landslidementioning

confidence: 99%

Reliability analysis for a large and complex landslide in the three gorges reservoir area (China) based on incomplete information

Zhang

et al. 2018

Geomatics, Natural Hazards and Risk

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“…The water level increased by about 100 m from the original water level of about 75 m. In addition, a 30-m annual variation in water level was specified by reservoir regulations. As a result of the combined effect of the large water level variation, relocation, and other factors, the geological conditions in the Three Gorges area have been significantly changed, and challenges in terms of geological hazards prevention have been encountered in the Yangtze River (Yin et al 2016c). This project first presents the spatiotemporal distribution of landslides in six periods of 175 m ASL trial impoundments from 2008 to 2014.…”

Section: Reservoir-induced Landslides At Three Gorges Reservoirmentioning

confidence: 99%

Research on Heavy-Rainfall-Induced and Hydraulic-Driven Geological Hazards in China (WCoE 2014–2017)

Yin

Wang

2017

Advancing Culture of Living With Landslides

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China Geological Survey (CGS) is one of the 15 new World Centres of Excellence (WCoE) in Landslide Disaster Reduction for the period 2014-2017. The title of the activities of the WCoE has been "Scientific research for mitigation, preparedness and risk assessment of landslides" since 2008, due to the complex conditions for the occurrence of geohazards in China. The Center of Geohazards Emergency of Ministry of Land Resources, which is directly under CGS, is responsible for the emergency response to major geohazards nationwide, including survey and investigation, monitoring and warning, risk assessment, prevention, training, and information systems. In this paper, the important activities of CGS are elaborated. The research project entitled "Research Project on the Early Recognition and Warning on Heavy Rainfall-Induced and Hydraulic-Driven Geological Hazards in China" was conducted from 2011 to 2015. From 2015 to 2017, a new project on mechanisms and hazards patterns of hydraulic-driven landslides has been conducted by the Center of Geohazards Emergency, China Geological Survey.

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“…Historical statistics show that in general, over 90% of reservoir-induced landslides are caused by the fluctuations of reservoir water level, and approximately 50% occurred during the period of impoundment [1][2][3][4]. More than 80% occurred during the first 3 to 5 years after the construction of the dam [1].…”

Section: Introductionmentioning

confidence: 99%

“…More than 80% occurred during the first 3 to 5 years after the construction of the dam [1]. Regarding the influences of reservoir water level fluctuation, 40% occurred with the declination of reservoir water level [2,3]. The large landslides of the sizes greater than ten million cubic meters were normally triggered by the rapid declination of the reservoir water level.…”

Section: Introductionmentioning

confidence: 99%

“…By conducting numerical analysis [6,7], the risk management of potential impulse wave by the slope movement also draws more attentions. The majority of these researchers are intent to provide a complete overview/analysis on the whole process of the disaster chain, including the deformation triggering of the landslide to the generation of impulse wave, as well as the resulted potential hazard to the properties in the reservoir or on the opposite bank [2,3]. The full-process analysis offers valuable insights into the planning of prevention, control of geological hazards, and guidance on estimation of landslide-generated impulse waves in reservoirs.…”

Section: Introductionmentioning

confidence: 99%

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The Monitoring-Based Analysis on Deformation-Controlling Factors and Slope Stability of Reservoir Landslide: Hongyanzi Landslide in the Southwest of China

et al. 2018

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Reservoir landslide is a type of commonly seen geological hazards in reservoir area and could potentially cause significant risk to the routine operation of reservoir and hydropower station. It has been accepted that reservoir landslides are mainly induced by periodic variations of reservoir water level during the impoundment and drawdown process. In this study, to better understand the deformation characters and controlling factors of the reservoir landslide, a multiparameter-based monitoring program was conducted on a reservoir landslide-the Hongyanzi landslide located in Pubugou reservoir area in the southwest of China. The results indicated that significant deformation occurred to the landslide during the drawdown period; otherwise, the landslide remained stable. The major reason of reservoir landslide deformation is the generation of seepage water pressure caused by the rapidly growing water level difference inside and outside of the slope. The influences of precipitation and earthquake on the slope deformation of the Hongyanzi landslide were insignificant.

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Reservoir-induced landslides and risk control in Three Gorges Project on Yangtze River, China

Cited by 194 publications

References 38 publications

Reliability analysis for a large and complex landslide in the three gorges reservoir area (China) based on incomplete information

Reliability analysis for a large and complex landslide in the three gorges reservoir area (China) based on incomplete information

Research on Heavy-Rainfall-Induced and Hydraulic-Driven Geological Hazards in China (WCoE 2014–2017)

The Monitoring-Based Analysis on Deformation-Controlling Factors and Slope Stability of Reservoir Landslide: Hongyanzi Landslide in the Southwest of China

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