Changes in the electrical resistivity of arid soils during oedometer testing

Ghorbani, Ahmad; Cosenza, Philippe; Badrzadeh, Yasaman; Ansari, Abdulhamid

doi:10.1080/19648189.2012.747782

Cited by 7 publications

(3 citation statements)

References 24 publications

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“…1). The two-electrode method (Ghorbani et al 2013;Zhang et al 2014) was adopted in this research. The electrical resistance was first achieved from the measured electrical current flowing through the specimen and corresponding voltage drop between the two electrodes.…”

Section: Methodsmentioning

confidence: 99%

Electrical resistivity characteristics of diesel oil-contaminated kaolin clay and a resistivity-based detection method

Liu

Cai

et al. 2014

Environ Sci Pollut Res

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As the dielectric constant and conductivity of petroleum products are different from those of the pore water in soil, the electrical resistivity characteristics of oil-contaminated soil will be changed by the corresponding oil type and content. The contaminated soil specimens were manually prepared by static compaction method in the laboratory with commercial kaolin clay and diesel oil. The water content and dry density of the first group of soil specimens were controlled at 10 % and 1.58 g/cm(3). Corresponding electrical resistivities of the contaminated specimens were measured at the curing periods of 7, 14, and 28 and 90, 120, and 210 days on a modified oedometer cell with an LCR meter. Then, the electrical resistivity characteristics of diesel oil-contaminated kaolin clay were discussed. In order to realize a resistivity-based oil detection method, the other group of oil-contaminated kaolin clay specimens was also made and tested, but the initial water content, oil content, and dry density were controlled at 0~18 %, 0~18 %, 1.30~1.95 g/cm(3), respectively. Based on the test data, a resistivity-based artificial neural network (ANN) was developed. It was found that the electrical resistivity of kaolin clay decreased with the increase of oil content. Moreover, there was a good nonlinear relationship between electrical resistivity and corresponding oil content when the water content and dry density were kept constant. The decreasing velocity of the electrical resistivity of oil-contaminated kaolin clay was higher before the oil content of 12 % than after 12 %, which indicated a transition of the soil from pore water-controlled into oil-controlled electrical resistivity characteristics. Through microstructural analysis, the decrease of electrical resistivity could be explained by the increase of saturation degree together with the collapse of the electrical double layer. Environmental scanning electron microscopy (ESEM) photos indicated that the diesel oil in kaolin clay normally had three kinds of effects including oil filling, coating, and bridging. Finally, a resistivity-based ANN model was established based on the database collected from the experiment data. The performance of the model was proved to be reasonably accepted, which puts forward a possible simple, economic, and effective tool to detect the oil content in contaminated clayey soils just with four basic parameters: wet density, dry density, measured moisture content, and electrical resistivity.

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Section: Methodsmentioning

confidence: 99%

Electrical resistivity characteristics of diesel oil-contaminated kaolin clay and a resistivity-based detection method

Liu

Cai

et al. 2014

Environ Sci Pollut Res

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“…This helped in defining the parameters of the field such as sampling and survey length and interpret the posterior data. (Seladji et al 2010) Along the positive relationship between electrical resistivity and geo-technical, parameters that are indirectly associated with the compressibility factors, which give an understanding of phenomenon relationship between soil settlement and electrical resistivity (Ghorbani et al 2012). Soil matrix and attribute governs the wide range of hydrological and ecological functions of soil, this need to be examining the geophysics in large-scale spatial and temporal domains, that can sight to have soil structure.…”

Section: Literature Reviewmentioning

confidence: 99%

Application of Schlumberger Method for Characterization of Soil

Chaohan*¹,

Shrivastava²,

Shrivastava³

2019

IJITEE

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A nowadays, geo-environmental study such as soil contamination analysis, electrical properties of soil, and geo-technical centrifuge modeling needs a characterization of soil. This will help in estimation of soil properties, mathematical and physical modeling, field investigation and some other detailed phenomenon. In this study, we used a Schlumberger method for characterization of soil in the water conduit of village Visarpani, near Mainpat block of Surguja district of Chhattisgarh, India. In this conduit, water stream climbs itself towards uphill with the slope of 450 and travels distance about 150 meters in East to West direction and after turns towards downhill in North to South direction. Experimentally calculated Schlumberger resistance used in the theoretical calculations for finding resistivity and conductivity of soil and then predicted the soil characteristics at different intervals. This study showed that towards uphill resistivity is decreasing and conductivity is increasing regarding distance intervals.

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“…In the same way, to obtain a multi-functional device, a modified oedometer cell developed by [14] simultaneously measures the electrical resistivity and the settlement of the sample. The oedometer ring, which is composed of Teflon (an electrical insulating material) allows for the coupling of a classical oedometer procedure and an electrical resistivity measurement.…”

Section: Multi-functional Devicesmentioning

confidence: 99%

Indirect determination of soil water content

Cosenza

2016

E3S Web Conf.

Self Cite

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Abstract. This manuscript reviews the recent developments in indirect methods used to measure soil watent content (SWC). It focuses on three types of methodological approaches: (i) high-frequency electromagnetic methodologies (dielectric methods and Ground Penetrating Radar), (ii) low-frequency electromagnetic methods (resistivity method and spectral induced polarization-SIP) and (iii) emerging methods (laboratory and ground-based nuclear magnetic resonance-NMR techniques and methods based on fiber optic temperature sensing systems). For each method the physical principles and the corresponding methodology are briefly described first, followed by the recent methodological advances. These recent advances address the following issues: (a) integration of different types of sensors to design new multi-functional devices, (b) miniaturization of low-cost and easily-installed electromagnetic sensors, (c) fusion and assimilation of data acquired from multiple modalities with different sampling rates and spatial resolutions, (d) physical understanding of spectra and distributed parameters measured by SIP and NMR methods, (e) improvement of geophysical inversion techniques combined with fast data acquisitions (4D monitoring of SWC).

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Changes in the electrical resistivity of arid soils during oedometer testing

Cited by 7 publications

References 24 publications

Electrical resistivity characteristics of diesel oil-contaminated kaolin clay and a resistivity-based detection method

Electrical resistivity characteristics of diesel oil-contaminated kaolin clay and a resistivity-based detection method

Application of Schlumberger Method for Characterization of Soil

Indirect determination of soil water content

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