Reconstruction of a large runout landslide in the Krušné hory Mts. (Czech Republic)

Burda, Jan; Veselý, M.; Rehor, Michal; Vilímek, Vít

doi:10.1007/s10346-017-0881-0

Cited by 13 publications

(6 citation statements)

References 16 publications

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“…This is a typical feature of liquefaction of alluvial deposits, which constitute a mixture of fine particle soil and coarse clastic rock. Researchers in the Czech Republic found that a massive rockslide avalanche transformed into a long-runout landslide along the terrace in the Bilina River (Burda et al, 2018). The data show that the slope of the terrace is generally lower than 10 in this study region (Burda et al, 2018;Poschinger & Kippel, 2009).…”

Section: Shear Propertiesmentioning

confidence: 61%

“…Researchers in the Czech Republic found that a massive rockslide avalanche transformed into a long-runout landslide along the terrace in the Bilina River (Burda et al, 2018). The data show that the slope of the terrace is generally lower than 10 in this study region (Burda et al, 2018;Poschinger & Kippel, 2009). Many landslides on shale slopes have been identified for the Saskatchewa River.…”

Section: Shear Propertiesmentioning

confidence: 64%

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A catastrophic flowslide that overrides a liquefied substrate: the 1983 Saleshan landslide in China

Zhang

Peng

Gao

et al. 2021

Earth Surf Processes Landf

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Flowslides that override a liquefied substrate can vastly enhance a disaster after failure initiation. These effects may result from the rapid velocity and long runout distance from slides mobilized into flows. It is thus crucial to provide an improved understanding of the transformation mechanisms of catastrophic flowslides for hazard evaluation. This study examines the Saleshan landslide in Gansu, China, which occurred in 1983 and killed more than 200 people. The Saleshan landslide travelled for approximately 1 km due to pore water pressure generation resulting from overrunning and liquefication of the alluvial sands in the river valley below. We used geomorphologic and topographic maps to determine its dynamic features and mobilization behaviors on the landslide body, and placemarks and seismic signals to identify its approximate velocity at different sites. Electrical resistivity tomography (ERT) surveys also revealed the hydrogeological conditions post-landslide, showing a clear groundwater table along with the liquefied alluvial sand and gravel layers. Particle size distributions and triaxial shear behaviors confirmed more ready liquefaction of superficial loess and underlying alluvial sand in comparison with the red soil above and below them. Novel loading impact triaxial testing was also performed on the alluvial sand to elucidate its liquefaction potential in undrained and drained conditions.The alluvial sand was found to be markedly prone to liquefaction in undrained conditions due to impact-induced increased pore water pressure. The results further demonstrated that the Saleshan landslide underwent a transformation from a slowing slide on a steep slope, where it originated, to flow on a nearly flat terrace with abundant groundwater that it overrode. The transformation mechanism involved the liquefied alluvium sand substrate, which greatly enhanced the landslide mobility. Along with recent, similar findings from landslides globally, substrate liquefaction may result in a widespread, significant increase in landslide mobility and thus hazard, and the present study identifies the requisite conditions for this phenomenon to occur.

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Section: Shear Propertiesmentioning

confidence: 61%

Section: Shear Propertiesmentioning

confidence: 64%

A catastrophic flowslide that overrides a liquefied substrate: the 1983 Saleshan landslide in China

Zhang

Peng

Gao

et al. 2021

Earth Surf Processes Landf

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“…The sedimentation in the Most Basin began in the Eocene period when several rather small depressions were gradually filled with gravels, sands and variegated silts and clays. These materials were deposited on mostly weathered basement represented by Cretaceous and Permocarbonicerous sediments and crystalline rocks of the Krušné hory Mts (Burda et al, 2017). Individual depressions are thought to have been functioning most probably as lakes with outlets.…”

Section: Results Of the Research Geological Situation Of The Most Basinmentioning

confidence: 99%

Research of overburden rocks geological parameters impact to the excavators cutting bodies abrasion in the Most basin conditions

Rehor

Moni

Helebrant

et al. 2019

Multidisciplinary Aspects of Production Engineering

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The Brown Coal Research Institute started the solving of the research project based on the optimisation of the shape and material of ground and mining machines in 2018. This research is necessary for increasing of efficiency of mining process in conditions of the Most Basin. The very important part of the research was the geological characteristic of the Most Basin main mining localities. Evaluation of the geological situation of the Bílina, Vršany and Libouš mines (mining of the overburden rocks in the ČSA mine finished) is the first stage of the solving of the project described in this article. The occurrence of sandy strata and the parameters of hard rocks are the most important parameters. The most important used laboratory analyses were the content of crystalline quartz, content of siderite, content of calcite and compressive strength. The location of the overburden cuts with similar mining conditions in different mining localities, very important for need of future research, is described in the end of this article.

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“…Such measurements are only made in high risk zones. An example may be the ČSA Pit and the monitoring of South East slopes of the Krušné Mountains (Burda et al 2010).…”

Section: Geodetic Monitoring Methodsmentioning

confidence: 99%

A Study of the User Friendliness of Temporal Legends in Animated Maps

Vít¹,

Bláha²

2017

Auc Geographica

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The article focuses on the geodetic monitoring of the Rabenov landslide territory. The monitored slope is situated in the landscape deteriorated by mining activity in North Bohemia, West of Ústí nad Labem, in Chabařovice, a reclaimed brown coal pit. The article presents a general description of the application and accuracy of geodetic methods used to measure on the movement of material in landslides. Also, the history, the problems and the plans for reclamation of the monitored territory are briefly mentioned. The text concentrates on the description of the network of three observed points which are formed by geotechnical instrumentations and on the description of a terrestrial and GNSS measurement in the network of monitored points. The assessment methods and the results from the eight-year phased monitoring process are also discussed. Different methods were tested during the phases. For terrestrial measurements, standard deviations of about 2 mm in position were made and for GNSS standard deviations of about 14 mm. Surveys in a local grid showed that there were continuous movements of observed station points of about 10 mm per year. The paper also discusses the use and assessment of digital terrain models in zones with on-going artificial as well as natural changes. Models indicate elevation changes of about 2-6 m and movement of about 10,000-100,000 m 3 of material.

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Reconstruction of a large runout landslide in the Krušné hory Mts. (Czech Republic)

Cited by 13 publications

References 16 publications

A catastrophic flowslide that overrides a liquefied substrate: the 1983 Saleshan landslide in China

A catastrophic flowslide that overrides a liquefied substrate: the 1983 Saleshan landslide in China

Research of overburden rocks geological parameters impact to the excavators cutting bodies abrasion in the Most basin conditions

A Study of the User Friendliness of Temporal Legends in Animated Maps

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