Ground-penetrating radar observations for estimating the vertical displacement of rotational landslides

Lissak, Candide; Maquaire, Olivier; Malet, Jean-Philippe; Lavigne, Franck; Virmoux, Clément; Gomez, Christopher; Davidson, Robert

doi:10.5194/nhess-15-1399-2015

Cited by 14 publications

(12 citation statements)

References 17 publications

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“…Segundo Brodlie et al Lapenna & Piscitelli (2014) é feita uma revisão bastante abrangente de trabalhos nesse sentido, mostrando as capacidades do método para tal. O GPR também é muito utilizado em trabalhos de desastres naturais, como exemplo, em Lissak, Maquaire, Malet, Lavigne & Gomez (2015), onde o GPR foi utilizado para estimar movimentos verticais de escorregamentos rotacionais, combinados com levantamentos geodésicos de alta precisão. O método também foi utilizado no trabalho de Roch, Chwatal & Brückl (2006) para determinar áreas mais propensas a quedas de blocos de rocha na Áustria.…”

Section: Geovisualização E Rvunclassified

Modelagem 3D e geovisualização aplicada a desastres naturais. Uma proposta de laboratório de ensino e pesquisa para monitoramento e previsão de escorregamentos

et al. 2019

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Landslides have a high degree of uncertainty requiring new methods for their analysis, monitoring and forecasting. In Brazil, Cemaden is responsible for actions related to the natural disasters and, recently, has started with partner institutions, a project sponsored by FINEP in order to monitor ten prone-landslides areas situated in different regions of the country. This paper presents the proposal of REDEGEO to implant a laboratory of modeling and geovisualization to study landslide processes in urbanized areas. The laboratory consists of three parts: A) Field surveys to obtain high resolution images from unmanned aerial vehicles and to obtain the internal geometry of outcrops from geophysics methods (Resistivity and Radar Soil Penetration - GPR); B) 3D modeling using the software Geovisionary® which allows the analysis of image and geophysical dataset from different formats considering their volumetric properties; C) Geovisualization and Virtual Reality (VR) where the images obtained in the fieldwork can be observed from a human-machine interface which allows that the researchers have a full immersion in the selected areas. The creation of a laboratory related to the natural disasters, which include geovisualization and VR, stimulates the active participation of the researcher team and creates mechanisms for the participation of technologies developers, managers, civil defense agents and even the population that lives in the risk prone-areas.

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Section: Geovisualização E Rvunclassified

Modelagem 3D e geovisualização aplicada a desastres naturais. Uma proposta de laboratório de ensino e pesquisa para monitoramento e previsão de escorregamentos

et al. 2019

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“…Landslides are one of the most frequent geohazards in Europe and can severely impact coastal areas [1][2][3][4][5][6][7][8]. In particular, landslides are common along the European coasts of the Mediterranean Sea and can include different types of transport mechanisms such as falls, slides, spreads, or flows [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Advantages of Using UAV Digital Photogrammetry in the Study of Slow-Moving Coastal Landslides

et al. 2020

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The aim of this study is to demonstrate the advantages of using micro drones in the study of large slow-moving landslides, which are widespread along the northwestern coast of Malta. In particular, attention was given to the inventory and analysis of gravity-induced joints and megaclast deposits at four study sites selected due to the presence of remarkable examples of lateral spreads evolving into block slides. The research was carried out by means of Google Earth (GE) image analysis and uncrewed aerial vehicle digital photogrammetry (UAV-DP). UAV-DP outputs enabled the identification and characterization of tens of persistent joints (locally exceeding 150 m) and permitted the size categorization of thousands of blocks. With reference to gravity-induced joints, a favorable agreement was found between existing datasets (mainly based on the integration of GE analysis and field survey) and UAV-DP outputs in terms of the identification of joints and their persistence. Conversely, the use of the UAV-DP technique showed significant advantages in terms of joint aperture determination (even exceeding 1 m) and distribution setting. Regarding the extensive megaclast deposits, UAV-DP enabled the identification of 8943 individuals which, compared with the 5059 individuals identified by GE analysis, showed an increase in the total population of 76%. This is related to the high accuracy of DP-derived orthomosaics and 3D models, which are particularly useful for identifying detached blocks. The inexpensive technique used in this research highlights its potential for being extended to other rocky coastal areas affected by slow-moving landslides.

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“…Generally, as presented in all papers at literature the GPR profiles are able to identify the subsurface boundaries of a rapid debris flow. Furthermore, the above examples show that conductive shallow layers often limit the effectiveness of the GPR method, and its successful application on landslides is expected to strongly site dependent [7].. Due to unknown geological condition ahead in tunnel construction, undesirable geological factors are often encountered, such as fault, crushed zone, karst cave and Underground River. These geological factors not only influence tunnel excavation speed, but also cause severe engineering accidents such as collapse, debris flow, water burst and other destructive geological disasters [8].…”

Section: Introductionmentioning

confidence: 99%

GPR Application for Risks Detection in Subsurface Engineering Construction Projects

Alsharahi

Faize

Maftei

et al. 2019

Ovidius University Annals of Constanta - Series Civil Engineering

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The aim of this work is to study and explore the causes of the landslide in different locations using Ground Penetrating Radar (GPR) technology. GPR uses the electromagnetic method related the high-frequency pulse that used widely in various field. The experimental study focused on the investigation of the landslide in the road by GPR method with antenna 200 MHz. The landslides become serious problems and required various technique and methods to investigate it in several places. GPR measurements present a useful technique for studies and investigation of the problem. The GPR can be categorized in the first place as an experimental method surveys landslide depths were recognized at 1-10 m below the natural terrain level. The results obtained revealed the causes of landslides on the road.

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Ground-penetrating radar observations for estimating the vertical displacement of rotational landslides

Cited by 14 publications

References 17 publications

Modelagem 3D e geovisualização aplicada a desastres naturais. Uma proposta de laboratório de ensino e pesquisa para monitoramento e previsão de escorregamentos

Modelagem 3D e geovisualização aplicada a desastres naturais. Uma proposta de laboratório de ensino e pesquisa para monitoramento e previsão de escorregamentos

Advantages of Using UAV Digital Photogrammetry in the Study of Slow-Moving Coastal Landslides

GPR Application for Risks Detection in Subsurface Engineering Construction Projects

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