Geophysical anatomy of counter-slope scarps in sedimentary flysch rocks (Outer Western Carpathians)

Tábořík, Petr; Lenart, Jan; Blecha, Vratislav; Vilhelm, Jan; Turský, Ondřej

doi:10.1016/j.geomorph.2016.09.038

Cited by 18 publications

(10 citation statements)

References 42 publications

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“…또한 전기비저항 해설 사면 안정성 평가를 위한 물리탐사 적용 사례 분석 113 탐사는 사면물질의 특성을 전반적으로 파악할 수 있어 대부분의 사면 조사에서 기본적으로 사용하지만 전기비 저항 탐사는 해상도가 떨어져 암반사면의 균열 및 균열 의 연결성을 파악하기에는 한계가 있으며, 이를 보완하 기 위해 해상도가 높은 탄성파 탐사를 병행하여 탐사를 수행하는 것이 적절하다 (Akpan et al, 2015;Deparis et al, 2008). 탄성파 탐사는 사면의 지질 조건과 균열 상태 를 파악하기에 적합한 탐사로, 전기비저항 탐사에 비해 뚜렷하게 높은 해상도를 가지고 있기 때문에 균열의 정 확한 위치와 매질의 경계를 보다 정확하게 파악할 수 있 다는 장점이 있어 사면의 안정성 탐사에 널리 활용하고 있다 (Lévy et al, 2010(Lévy et al, , 2011Tábořík et al, 2017;Colombero et al, 2016Colombero et al, , 2017 (Carson and Kirkby, 1972). (Haraguchi et al, 2005).…”

Section: 서 론unclassified

A Review on Past Cases of Geophysical Explorations for Assessment of Slope Stability

Cho

Joung

Jeong

et al. 2022

Econ. Environ. Geol.

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Since landslide can cause huge damages to many facilities, close characterization of slopes is needed for appropriate reinforcements for the unstable ones in order to prevent the damages. Geophysical surveys, which can characterize a large area at a relatively low cost without disturbing slopes, have been widely employed for the assessment of slope stability in other countries. However, only conventional direct investigation methods are mainly used in Korea. In this paper, we analyzed various cases, which evaluated slope stabilities by characterizing slopes using geophysical exploration. First, we introduced changes in geophysical properties due to unstable media of slope like fracture location, fracture connectivity and distribution of groundwater level, and subsequently discussed the applicability of geophysical methods to the detection of the changes; the methods include electrical resistivity survey, seismic survey, self-potential survey, induced polarization survey and ground penetrating radar. Based on this description, we analyzed how geophysical surveys were performed on various slopes.

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Section: 서 론unclassified

A Review on Past Cases of Geophysical Explorations for Assessment of Slope Stability

Cho

Joung

Jeong

et al. 2022

Econ. Environ. Geol.

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“…Likewise, there are numerous successful utilizations of the MASW method in the field of geotechnical engineering and environmental studies (Miller et al, 2003;Ivanov et al, 2006;Lane, 2009;Uhlemann et al, 2016;Su et al, 2017;Tábořík et al, 2017). Along with single applications, there are many case studies where joint geophysical techniques have been adopted (e.g., Refraction, Reflection/MASW, and ERT) for the analysis of landslides (Bichler et al, 2000;Grit and Kanli, 2016).…”

Section: Study Areamentioning

confidence: 99%

Characterization of Sobradinho landslide in fluvial valley using MASW and ERT methods

Hussain

Omar²,

Cárdenas‐Soto

et al. 2020

REM, Int. Eng. J.

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Landslides can substantially impact the fluvial systems, which is why the continuous mapping of their extent, evolution and stability assessment is crucial. However, in such environments, material identification (e.g. colluvium) and subsurface characterization by the methods used for geologic mapping and geotechnical investigation is often a challenging task. Thus, these classical invasive methods may benefit from geophysical techniques to enable and enhance our understanding of the subsurface in these areas. To examine such integrated approach, Multi-Channel Analysis of Surface Waves (MASW) combined with Electrical Resistivity Tomography (ERT) were applied on a geomorphologically active fluvial valley in Sobradinho (the Federal District of Brazil). The subsurface materials showed a specific range of resistivity values as dry soil, saprolite, and landslide slip surface. The 1D shear wave velocity (Vs) model showed an increasing trend of Vs with depth at a location away from the landslide mass, while the longitudinal profile (over the landslide) showed an anomalous change in Vs (~ 250 to 400 m/sec). Based on the existing information about the landslide, the ERT appeared to be an effective method over MASW. This study shows how the integration of geophysical data with the geological and geotechnical investigation helps to obtain a more realistic or unambiguous model of the subsurface.

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“…As mentioned above, this is probably because they can be employed to both monitor and characterize seismic signals triggered by landslide dynamics [55,133,134]. At the fourth position is GPR, although the authors highlight both the difficulty of deployment on cliffs and the limitation of its applicability to only highly resistive rock slopes [87,88,92,132]. ROCK Total Figure 1: For each landslide typology ("soil" in red, "rock" in green, and total in blue), the bar graph shows the number of papers focused on just one technique or on more than one.…”

Section: Type Of Movementmentioning

confidence: 99%

A Review of the Advantages and Limitations of Geophysical Investigations in Landslide Studies

Pazzi

Morelli

Fanti

2019

International Journal of Geophysics

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Landslide deformations involve approximately all geological materials (natural rocks, soil, artificial fill, or combinations of these materials) and can occur and develop in a large variety of volumes and shapes. The characterization of the material inhomogeneities and their properties, the study of the deformation processes, and the delimitation of boundaries and potential slip surfaces are not simple goals. Since the ‘70s, the international community (mainly geophysicists and lower geologists and geological engineers) has begun to employ, together with other techniques, geophysical methods to characterize and monitor landslides. Both the associated advantages and limitations have been highlighted over the years, and some drawbacks are still open. This review is focused on works of the last twelve years (2007-2018), and the main goal is to analyse the geophysical community efforts toward overcoming the geophysical technique limitations highlighted in the 2007 geophysics and landslide review. To achieve this aim, contrary to previous reviews that analysed the advantages and limitations of each technique using a “technique approach,” the analysis was carried out using a “material landslide approach” on the basis of the more recent landslides classification.

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Geophysical anatomy of counter-slope scarps in sedimentary flysch rocks (Outer Western Carpathians)

Cited by 18 publications

References 42 publications

A Review on Past Cases of Geophysical Explorations for Assessment of Slope Stability

A Review on Past Cases of Geophysical Explorations for Assessment of Slope Stability

Characterization of Sobradinho landslide in fluvial valley using MASW and ERT methods

A Review of the Advantages and Limitations of Geophysical Investigations in Landslide Studies

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