Characteristics and block kinematics of a fault-related landslide in the Qinba Mountains, western China

Fan, Wen; Lv, Jiaojiao; Cao, Yanbo; Shen, Mengfen; Deng, Longsheng; Wei, Ya-ni

doi:10.1016/j.enggeo.2018.12.019

Cited by 29 publications

(7 citation statements)

References 26 publications

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“…Landslides are a very complicated natural phenomenon that create a severe loss of lives and assets throughout China [8,11,49,50,58,[82][83][84][85][86][87]. Over the years, many government agencies have sought alternatives to mitigate the catastrophic consequences of landfill slides by teaching individuals to understand the severe impacts of landfill slides better and by creating proper scheduling for mitigation and decision-making tools [48,56,57].…”

Section: Landslidesmentioning

confidence: 99%

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Human–Environment Natural Disasters Interconnection in China: A Review

Ali

Kuriqi

Kisi³

2020

Climate

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This study aimed to assess the interrelationship among extreme natural events and their impacts on environments and humans through a systematic and quantitative review based on the up-to-date scientific literature. Namely, the main goal was to add additional knowledge to the existing evidence of the impacts related to floods, droughts, and landslides on humans and the environment in China; this in order to identify knowledge gaps in research and practice to aid in improving the adaptation and mitigation measures against extreme natural events in China. In this study, 110 documents were analyzed in the evaluation of several impacts triggered by extreme events. Records were obtained from Scopus and Web of Science and examined with a text mining instrument to assess the pattern of publications over the years; the problems linked to extreme weather events were investigated, and the study gaps were discussed. This paper extends work by systematically reviewing recent evidence related to floods, droughts, and landslides in China. We listed the critical studies that focused on the impact of extreme events on both humans and the environment described in current reviews. The findings revealed that goods safety, social safety, and financial losses are of significant concern to the scientific community due to extreme natural events, which from our analysis resulted in being more frequent and intense. It is still underdeveloped to implement distant sensing and imaging methods to monitor and detect the impact of severe weather occurrences. There are still significant study gaps in the fields of the effects of extreme weather events. The analysis result shows that extreme events are increased during the time, so more in-depth investigation and efforts on adaptation, mitigation measures, and strategical governance plans are desperately required.

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Section: Landslidesmentioning

confidence: 99%

“…Therefore, 3D numerical results are still limited. [82] Yellow River in China. 2009 Revealing an acceleration of deformation after the impoundment of the reservoir Not reported.…”

Section: Affected Farmland Seriously Threatens People's Safety and Propertymentioning

confidence: 99%

Human–Environment Natural Disasters Interconnection in China: A Review

Ali

Kuriqi

Kisi³

2020

Climate

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“…The bedding fault is widely distributed in the mountains, and the strength degradation of bedding faults often determine the slope stability. It has been previously reported that some large landslides initiated along the bedding fault, such as the Chiu-fen-erh-shan landslide (Wang et al, 2003), Daguangbao (DGB) landslide (Cui et al, 2018;Cui et al, 2020), and Qiyangou landslide (Fan et al, 2019), etc. In addition, the generation of pore-water pressure under seismic loading resulted in the strength degradation in the sliding zone, which was the key factor for the initiation and movement of landslide.…”

Section: Introductionmentioning

confidence: 99%

Pore-Water Pressure Model for Carbonate Fault Materials Based on Cyclic Triaxial Tests

et al. 2022

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Pore-water pressure generation in the saturated carbonate fault zone plays a key role in the initiation of the Daguangbao landslide, which is the largest landslide triggered by the 2008 Wenchuan earthquake in China. This paper examines the pore-water pressure behavior and the influence of cyclic stress and initial stress state, and establishes a pore-water pressure model of carbonate fault materials. A series of cyclic triaxial tests of saturated carbonate fault materials were carried out, covering a broad range of frequencies, cyclic shear stress ratios and confining pressures. The test results show that the pore-water pressure in the materials increases rapidly under cyclic loading, revealing a significant liquefaction potential. The generation of pore-water pressure is barely affected by frequency. The higher cyclic shear stress ratio accelerates the generation of the pore-water pressure, while the higher confining pressure increases liquefaction resistance. Furthermore, an energy method is proposed to evaluate the development behavior of the pore-water pressure. An energy-based pore-water pressure model that accounts for the effects of frequency, cyclic shear stress ratio and confining pressure is established. The generation of the pore-water pressure is attributed to the grain crushing in the special fault materials with low-strength calcareous cementation. This work provides a novel model and some innovative observations for better understanding the pore-water pressure behavior of carbonate fault materials under seismic loading.

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“…They were responsible for at least 17% of all fatalities from natural hazards worldwide in the period of 1994-2013 [8,9]. Statistics from the Geological Bulletin of China show that the number of landslides in China accounted for 48.9% of geological disasters throughout the country in 2021, which are more likely to be triggered during high-intensity rainfall or prolonged rainfall in the mountainous regions [10][11][12][13]. In recent decades, the increase in anomalous precipitation has significantly increased the probability of landslides [14,15].…”

Section: Introductionmentioning

confidence: 99%

Accelerating Effect of Vegetation on the Instability of Rainfall-Induced Shallow Landslides

et al. 2022

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Rainfall-induced shallow landslides are widespread throughout the world, and vegetation is frequently utilized to control them. However, in recent years, shallow landslides have continued to frequently occur during the rainy season on the vegetated slopes of the Loess Plateau in China. To better probe this phenomenon, we considered vegetation cover in the sensitivity analysis of landslide hazards and used the transient rainfall infiltration and grid-based regional slope stability (TRIGRS) model to quantitatively describe the impacts of different types of vegetation cover on slope stability. Based on the rainfall information for landslide events, the spatiotemporal distributions of the pore water pressure and the factor of safety of the vegetated slopes were inverted under the driving changes in the soil properties under different vegetation types, and the average prediction accuracy reached 79.88%. It was found that there was a strong positive correlation between the cumulative precipitation and the proportion of landslide-prone areas in woodland covered by tall trees, grassland covered by shrubs and grasses, and cultivated land. The highest landslide susceptibility, which has the greatest potential to hasten the occurrence of rainfall-induced landslides, is found in woodland with tall trees. Therefore, this paper proposes the promoting relationship between vegetation and landslide erosion, which provides a new scientific perspective on watershed management to prevent shallow landslide disasters and manage and develop watershed vegetation.

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Characteristics and block kinematics of a fault-related landslide in the Qinba Mountains, western China

Cited by 29 publications

References 26 publications

Human–Environment Natural Disasters Interconnection in China: A Review

Human–Environment Natural Disasters Interconnection in China: A Review

Pore-Water Pressure Model for Carbonate Fault Materials Based on Cyclic Triaxial Tests

Accelerating Effect of Vegetation on the Instability of Rainfall-Induced Shallow Landslides

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