Dynamic process of the Wenjiagou rock landslide in Sichuan Province, China

Liu, Han Dong; Li, Dong Dong; Wang, Zhong Fu

doi:10.1007/s12517-018-3564-9

Cited by 13 publications

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Discrete Element Method (DEM) is a widely used Discontinuous Medium Method, to which the Particle Flow Code (PFC) (Cundall and Strack 1979) and MateDEM (Scaringi et al 2018) belong. Several studies have been carried out to reproduce landslides processes after their occurrence using the PFC (Chang and Taboada 2009;Liu et al 2018;Lo et al 2011;Lo et al 2016;Poisel and Preh 2008). Although the continuous medium method has the advantage of high computational e ciency, fragmentation and separation of rock fragment could not be re ected, which is important for the kinematic analysis of landslides (Bao et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Potential risk assessment of the large hydropower station dumpsite using numerical simulation: a case study in Shanxi Province, China

Li,

Liu,

Wang

et al. 2024

Nat Hazards

View full text Add to dashboard Cite

Engineering construction (such as water conservancy project, road engineering, and so on) in mountain areas bring mass of waste soil and rock fragment, whose stability is critical to the ecological environment and the safe operation of engineering facilities. The biggest waste dump of the Pumped Storage Power Station Project in Hunyuan County, Shanxi Province, China, with a volume of 7 million m³ and a maximum height of 240 m, is to be located at the origin of Mahua Valley. To assess the potential risk of the waste dump, reconnaissance, geomorphological analysis was undertaken to provide basic data. The potential failure area and volume was determined utilizing Flac3D depending on strength reduction method. The kinematic process after failure was presented by Particle ow code. The results showed that the factor of safety of the waste dump under heavy precipitation was 1.15, less than the stability requirement of slope in hydropower station, and the potential failure volume was about 4.8 million m³. Our simulation results clearly display scenario-based debris mass run-out paths and indicate that, considering the worst cases scenario, the ground ventilation platform and ventilation tunnel exit on the right bank of the gully might be destroyed rapidly by landslide debris. Besides, the debris ow would accumulate at the gully mouth, and even run into the lower reservoir. These results are useful information for decision support and future hazard assessment of such engineering project.

show abstract

Section: Introductionmentioning

confidence: 99%

Potential risk assessment of the large hydropower station dumpsite using numerical simulation: a case study in Shanxi Province, China

Li,

Liu,

Wang

et al. 2024

Nat Hazards

View full text Add to dashboard Cite

show abstract

“…Researchers make quantitative statistics on the spatial particle distribution of the rock avalanches and their variation characteristic in the direction of deposition thickness by using numerical simulation technology [17,[30][31][32][33][34][35]. The stress and strain behavior of debris can be shown well by using some good kinematic models, such as the point mass model [36], lumped mass model [37], continuum flow model [38], Bingham model [39], frictional model [40], and Voellmy model [41].…”

Section: Introductionmentioning

confidence: 99%

Particle Project Correction for Rock Avalanche: Particle Crushing in Aerzhai Rock Avalanche, China

et al. 2022

View full text Add to dashboard Cite

Strong fluidized rock avalanches with various particle sizes are one of the typical disasters in the mountainous area of southwestern China. Statistical analysis on rock avalanche particles can help understand the traveling behavior, distance, and deposition of rock avalanche, which are useful for potential threat range prediction and disaster prevention. Rock avalanche deposit has more than one oblique slopes different in attitude. Image distortion will happen when particles on the slopes are projected to one plane. Area projection conversion coefficient Ki is applied in this paper to correct the distortion and improve the precision of the geometric dimension parameters of the rock avalanche particle. A rock avalanche (Aerzhai rock avalanche) with a volume of about 10×104 m3 took place in Longxi Township, Wenchuan County, China, on April 8, 2018. Being corrected by the coefficient Ki, the mean area and the standard deviation of the particles within different zones have been obtained, and we analyzed their changes in vertical and transverse directions. Here, we show that the mean particle area decreases by about 61.1% from the source to deposition region and area standard deviation decreases by about 37.4%. The deposition region shows a higher proportion of small crashed particles than the source region. The proportion of small particles gets larger with the longitudinal motion distance and lateral distance. For big particles’ significant potential energy-driving ability and inertia advantages, the longitudinal motion routes can be maintained, and inertia decreases as the particles get smaller, while small particles offset from the center area laterally. These statistical characters are easy to be ignored if projection correction is not performed.

show abstract

Natural Frequency Characteristics of Rock Masses Containing a Complex Geological Structure and Their Effects on the Dynamic Stability of Slopes

et al. 2019

View full text Add to dashboard Cite

Dynamic process of the Wenjiagou rock landslide in Sichuan Province, China

Cited by 13 publications

References 17 publications

Potential risk assessment of the large hydropower station dumpsite using numerical simulation: a case study in Shanxi Province, China

Potential risk assessment of the large hydropower station dumpsite using numerical simulation: a case study in Shanxi Province, China

Particle Project Correction for Rock Avalanche: Particle Crushing in Aerzhai Rock Avalanche, China

Natural Frequency Characteristics of Rock Masses Containing a Complex Geological Structure and Their Effects on the Dynamic Stability of Slopes

Contact Info

Product

Resources

About