Analysis of a railway embankment landslide induced by the Wenchuan earthquake, China

Sun, Shuwei; Wang, Jiachen; Jing, Zheng

doi:10.1007/s11204-013-9210-3

Cited by 9 publications

(5 citation statements)

References 7 publications

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“…Consequently, research on this topic went into a rapid‐development stage, and many research programs matured. The research contents focused mainly on geological hazards, with the great influences of this period, and discussed especially geological hazard characteristics, risk evaluation, and prevention and postdisaster reconstruction (Guo & Qi, ; Han et al, ; Li et al, ; Luo et al, ; Shen, Zhu, Liu, Ren, & Zhang, ; Sun, Wang, & Zheng, ; Zhao & Ma, ). Stable Period: 2014–2016 …”

Section: Resultsmentioning

confidence: 99%

“…The research in this period focused mainly on geological hazards and their distributions, preventive and control measures against such hazards, and the feedback effects of the hazards on the underlying causative mechanisms (Hu, 1993;Li, Yang, & Tang, 2007;Tang, Gao, & Zhang, 1995;Yan & Yue, 2004). (Guo & Qi, 2013;Han et al, 2012;Li et al, 2009;Luo et al, 2013;Shen, Zhu, Liu, Ren, & Zhang, 2008;Sun, Wang, & Zheng, 2013;Zhao & Ma, 2012).…”

Section: Analysis Of Quantitymentioning

confidence: 99%

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Research status quo and its prevention implication of geological hazards in the Central China Orogen

et al. 2018

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To study the status quo of research on geological hazards in the Central China Orogen and its geological distribution quantitatively, we used bibliometric methods and deeply analysed the numbers, the authors and research institutions involved, and the distribution and changes of the research contents of papers on geological hazards published from 1962 to 2016. This review involved 26,677 documents, 26,339 authors, and 11,095 research institutions. The results showed that the study of geological hazards has significant time‐domain characteristics. In this field, the greatest number of papers was published in Recent Developments in World Seismology and the Chinese Journal of Geophysics–Chinese Edition, with 456 and 159 papers, respectively. As shown by an analysis of keywords, the current research focuses mainly on the evaluation, distribution characteristics, development regularity, detection and prediction, and prevention and control of geological hazards. The conclusions find that the authors of foreign‐published papers are mostly Chinese researchers, which cannot reflect the status quo of foreign research in this field to a certain extent. Differentiation between domestic and foreign research approaches and objectives through comparative analysis should be further explored.

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Section: Resultsmentioning

confidence: 99%

Section: Analysis Of Quantitymentioning

confidence: 99%

Research status quo and its prevention implication of geological hazards in the Central China Orogen

et al. 2018

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“…(3) In the research history of creep, the definition and determination of the long-term strength of rock and soil were once discussed in the 1980s, and there were four genres: the strength will reduce, will improve, will not change or will change uncertainly [33]. In general, the definition of long-term strength is that when the shear stress applied to the soil is less than a certain critical shear strength of the soil, the speed of the shear strain becomes smaller and smaller, and finally, tends to be stable, and the soil sample will not be damaged; when the shear stress applied to the soil is greater than a certain critical strength value of the soil, the shear strain exhibits non-attenuating creep and, finally, causes failure.…”

Section: Discussionmentioning

confidence: 99%

Stress–Strain–Time Description and Analysis of Frozen–Thawed Silty Clay under Low Stress Level

Ren

et al. 2022

Geotechnics

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The construction of high-speed railways in cold regions needs to consider the effects of freeze–thaw cycles (FTHs) on the long-term deformation of subgrades. However, at present, research on the creep characteristics of frozen–thawed rocks and soils is not extensive. In the limited studies on frozen–thawed soil creep properties, current research focuses more on high stress–strain–time responses, but for the subgrades, the inner stress is usually low. This paper presents the results of triaxial compression creep tests on remolded, frozen–thawed silty clay sampled in the Yichun-Tieli area and describes its stress–strain–time relationship in an arctan function-based mathematical model. Each creep test condition is studied using three specimens. Frozen–thawed silty clay exhibits attenuation creep under low-level stress. In general, from 4 FTHs to 11 FTHs, the mean elasticity modulus decreases first, and then, increases. The exerted stress is higher than the yield stress; the more FTHs the specimens experience, the more time they need to be deformed stably under the same axial deviatoric stress (ADS). Under the same mean ADS, the mean stable strain of 7 FTHs exceeds the other two FTH conditions and, in general, the mean stable strain of 4 FTHs exceeds 11 FTHs. By dissecting the phenomena, it can be concluded that with FTHs increasing, moisture and voids reconstitute in the process; the elastic strain accounts for most of the total strain and significantly decides the extent of creep deformation; the arctan function-based model is basically able to describe, but not perfectly predict, the stress–strain–time relationship of frozen–thawed silty clay.

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“…Where transportation corridors traverse unstable mountainous terrain, critical rail infrastructure is at risk of damage, and presents potential local and national economic, social, and environmental challenges (Schuster and Fleming 1986;Geertsema et al 2009;Petrova 2011;Sun et al 2013;Haque et al 2016). The economic importance of these corridors, along with the need to understand and manage the safety risks related to landslides make on-site investigations a strategic priority for governments, the rail industry, and academia (Baum et al 2005;Jaiswal et al 2010;Doll et al 2014;Martinović et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Field testing innovative differential geospatial and photogrammetric monitoring technologies in mountainous terrain near Ashcroft, British Columbia, Canada

et al. 2021

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This paper presents a novel approach to continuously monitor very slow-moving translational landslides in mountainous terrain using conventional and experimental differential global navigation satellite system (d-GNSS) technologies. A key research question addressed is whether displacement trends captured by a radio-frequency "mobile" d-GNSS network compare with the spatial and temporal patterns in activity indicated by satellite interferometric synthetic aperture radar (InSAR) and unmanned aerial vehicle (UAV) photogrammetry. Field testing undertaken at Ripley Landslide, near Ashcroft in south-central British Columbia, Canada, demonstrates the applicability of new geospatial technologies to monitoring ground control points (GCPs) and railway infrastructure on a landslide with small and slow annual displacements (<10 cm/yr). Each technique records increased landslide activity and ground displacement in late winter and early spring. During this interval, river and groundwater levels are at their lowest levels, while ground saturation rapidly increases in response to the thawing of surficial earth materials, and the infiltration of snowmelt and runoff occurs by way of deep-penetrating tension cracks at the head scarp and across the main slide body. Research over the last decade provides vital information for government agencies, national railway companies, and other stakeholders to understand geohazard risk, predict landslide movement, improve the safety, security, and resilience of Canada's transportation infrastructure; and reduce risks to the economy, environment, natural resources, and public safety.

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Analysis of a railway embankment landslide induced by the Wenchuan earthquake, China

Cited by 9 publications

References 7 publications

Research status quo and its prevention implication of geological hazards in the Central China Orogen

Research status quo and its prevention implication of geological hazards in the Central China Orogen

Stress–Strain–Time Description and Analysis of Frozen–Thawed Silty Clay under Low Stress Level

Field testing innovative differential geospatial and photogrammetric monitoring technologies in mountainous terrain near Ashcroft, British Columbia, Canada

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