Numerical modelling of direct current electrical resistivity for the characterisation of cracks in soils

Tabbagh, Jeanne; Samouëlian, Anatja; Tabbagh, Alain; Cousin, Isabelle

doi:10.1016/j.jappgeo.2007.01.004

Cited by 38 publications

(25 citation statements)

References 12 publications

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“…The electrical images obtained from these electrodes enabled the detection of structures at the millimeter scale. More recently Tabbagh et al (2007) developed a new inversion model for assessing and simulating the electrical response and the main physical parameters of cracks in soils. Their model allowed a faster inversion of the experimental results.…”

Section: Introductionmentioning

confidence: 99%

Clay fine fissuring monitoring using miniature geo-electrical resistivity arrays

Sentenac

Zieliński

2009

Environ Earth Sci

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This article describes a miniaturised electrical imaging (resistivity tomography) technique to map the cracking pattern of a clay model. The clay used was taken from a scaled flood embankment built to study the fine fissuring due to desiccation and breaching process in flooding conditions. The potential of using a miniature array of electrodes to follow the evolution of the vertical cracks and number them during the drying process was explored. The imaging technique generated two-dimensional contoured plots of the resistivity distribution within the model before and at different stages of the desiccation process. The change in resistivity associated with the widening of the cracks were monitored as a function of time. Experiments were also carried out using a selected conductive gel to slow down the transport process into the cracks to improve the scanning capabilities of the equipment. The main vertical clay fissuring network was obtained after inversion of the experimental resistivity measurements and validated by direct observations

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Section: Introductionmentioning

confidence: 99%

Clay fine fissuring monitoring using miniature geo-electrical resistivity arrays

Sentenac

Zieliński

2009

Environ Earth Sci

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“…The distance of the first two electrodes and that of the last two is the same for both configurations. According to Tabbagh, Samouelian, and Cousin (2007), the W-S array seems to be the most sensitive configuration to detect changes in vertical resistivity (horizontal structures) and more sensitive than some arrays (such as the Wenner) to the horizontal resistivity changes (vertical structures). Its great number of data points and extensive horizontal coverage also justified its choice (Sentenac and Zielinski 2009).…”

Section: N V E S T I G a T I O N M E T H O Dmentioning

confidence: 99%

Prediction of the location of future rupture surfaces of a slowly moving loess landslide by electrical resistivity tomography

Szalai

Szokoli

Metwaly

et al. 2016

Geophysical Prospecting

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A slowly moving loess landslide along the River Danube in South Hungary was studied using electrical resistivity tomography. Our aim was to determine the fracture system of the study site. Due to the homogeneous composition of the loess, it seems to be the only possibility to get information about the landslide and its further evolution. The applicability of the electrical resistivity tomography technique for such a supposedly dense fracture system was studied by numerical modelling, and the results have been verified in the field. The dip of the fractures could not always been observed, and they could not be explored deeply. However, it was possible to map their surface projection to get the desired information about the structure of the landslide. Fracture zones could have been especially well localized, enabling the prediction of the positions of future rupture surfaces and thus the delineation of the endangered zone. Although the area outside of the already subsided one is not endangered yet, the area which has already started to move is going to break into two. Parts of the about 5 m wide blocks at the front of the landslide may fall or slide down anytime. A large area was assumed to move as one unit. Most of our predictions have been verified by the mass movements that occurred about one and half years after the measurements. The electrical resistivity tomography method proved to be a good tool to characterize the fracture system of such a landslide area, enabling the prediction of future rupture surfaces and also delineation of the endangered area. Its use is therefore highly recommended to monitor landslides to provide early risk warnings to avoid damage to constructions or endangering human life.

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“…The study used a Wenner-Alpha Array and used the RES2DINV inversion software (Loke, 2010;Loke and Barker, 1996a) to identify a contrasting area of high resistivity representing the fissure and lower resistivity representing intact soil. The authors concluded that to adequately resolve the desiccation fissures in a 2-D resistivity model, the creation of dedicated software was necessary (Tabbagh et al, 2007).…”

Section: Resistivity and Fissuringmentioning

confidence: 99%

Mapping desiccation fissures using 3-D electrical resistivity tomography

Jones

Zieliński

Sentenac

2012

Journal of Applied Geophysics

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Numerical modelling of direct current electrical resistivity for the characterisation of cracks in soils

Cited by 38 publications

References 12 publications

Clay fine fissuring monitoring using miniature geo-electrical resistivity arrays

Clay fine fissuring monitoring using miniature geo-electrical resistivity arrays

Prediction of the location of future rupture surfaces of a slowly moving loess landslide by electrical resistivity tomography

Mapping desiccation fissures using 3-D electrical resistivity tomography

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