Electric imaging and laboratory resistivity testing for geotechnical investigation of Pusan clay deposits

Giao, Pham Huy; Chung, S. G.; Kim, D.Y; Tanaka, Hiroyuki

doi:10.1016/s0926-9851(03)00002-8

Cited by 137 publications

(69 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1a). Electrical resistivity decreases with increasing moisture content in soils as reported in various previous studies [1,2,6,9,10,16]. Higher moisture content facilitates conduction of electrical current through movement of ions in pore water.…”

Section: Correlations Of Geotechnical and Resistivity Datasupporting

confidence: 62%

Integrating Geo-Electrical and Geotechnical Data for Soil Characterization

Siddiqui¹,

Baharom²,

Bin³

et al. 2012

IJAPM

View full text Add to dashboard Cite

Abstract-Precise determination of engineering properties of soil is essential for proper design and successful construction of any structure. The conventional methods for determination of engineering properties are invasive, costly and time-consuming. Electrical resistivity survey is an attractive tool for delineating subsurface properties without soil disturbance. Reliable correlations between electrical resistivity and other soil properties will enable us to characterize the subsurface soil without borehole sampling. This paper presents the preliminary results of an ongoing research on correlations of electrical resistivity with strength properties of soil. Soil investigations, field electrical resistivity survey (VES) and laboratory electrical resistivity measurements were conducted. From the data analysis, significant correlations have been obtained between resistivity and moisture content and angle of internal friction. Weaker correlations have been observed for cohesion and unit weight of soil.

show abstract

Section: Correlations Of Geotechnical and Resistivity Datasupporting

confidence: 62%

Integrating Geo-Electrical and Geotechnical Data for Soil Characterization

Siddiqui¹,

Baharom²,

Bin³

et al. 2012

IJAPM

View full text Add to dashboard Cite

show abstract

“…ER values abruptly drop to values of around 10 Ohm m atthewater content higher than around 20%, because of continuity of pore water (Fukue et al, 1999). Resistivity measured on clay samples collected worldwide varies in a very narrow range (from 1 to 12 Ohm m), and this conductive behaviour makes clayey horizons clearly discernible from overlaying silty and sandy soil layers (Giao et al, 2003). In our case, values of 12 Ohm m and lower were found below 30 cm, with some horizontal variation, and can be attributed to the presence of clay.…”

Section: Resultsmentioning

confidence: 99%

Electrical resistivity tomography to delineate greenhouse soil variability

Rossi¹,

Amato²,

Bitella³

et al. 2013

International Agrophysics

View full text Add to dashboard Cite

Appropriate management of soil spatial variability is an important tool for optimizing farming inputs, with the result of yield increase and reduction of the environmental impact in field crops. Under greenhouses, several factors such as non-uniform irrigation and localized soil compaction can severely affect yield and quality. Additionally, if soil spatial variability is not taken into account, yield deficiencies are often compensated by extra-volumes of crop inputs; as a result, over-irrigation and overfertilization in some parts of the field may occur. Technology for spatially sound management of greenhouse crops is therefore needed to increase yield and quality and to address sustainability. In this experiment, 2D-electrical resistivity tomography was used as an exploratory tool to characterize greenhouse soil variability and its relations to wild rocket yield. Soil resistivity well matched biomass variation (R2=0.70), and was linked to differences in soil bulk density (R2=0.90), and clay content (R2=0.77). Electrical resistivity tomography shows a great potential in horticulture where there is a growing demand of sustainability coupled with the necessity of stabilizing yield and product quality.

show abstract

“…Using such techniques, we are able to visualize soil features related to their electrical behavior; as current flux in soil is mostly electrolytic, resistivity is very sensitive to the two components that are mainly involved in charge transfer: the degree of pore water saturation and salinity (Lesch 2005) and the specific surfaces associated to the presence of clay particles (Tabbagh et al 2000). Resistivity is even sensitive to the microstructure of clays, based on lab measurements of worldwide collected clay samples; a first database of clays resistivity was compiled by Giao and coauthors (Giao et al 2003). A soil conductivity survey conducted across different soils showed strong and consistent correlations with clay ).…”

Section: Principles Of Geophysical Techniques For Agriculturementioning

confidence: 99%

Geophysical Techniques for Plant, Soil, and Root Research Related to Sustainability

Bitella

Rossi

Loperte

et al. 2015

The Sustainability of Agro-Food and Natural Resource Systems in the Mediterranean Basin

View full text Add to dashboard Cite

The sustainable management of human activities, from production to waste disposal and the cycling of finite resources, is one of the great challenges of research for the coming decades, stemming from societal needs and the growing awareness of environmental mechanisms.Research on geophysical methods provides an interdisciplinary approach to such challenges by addressing the need for techniques to assist in designing and monitoring strategies for sustainability in agriculture and other environment-related sciences.In the past few decades, technological advances have produced new tools or have improved existing techniques for near-surface geophysical investigation in a robust, cost-effective, and noninvasive way. Experimental results have proved that soil physical properties thus detected and mapped can be used as a proxy of physical, chemical, and biological features relevant for the appropriate management of soils, based on their behavior, spatial variability, and time dynamics.This chapter reviews principles of the techniques and reports selected research results on environmental and agronomic research.

show abstract

Electric imaging and laboratory resistivity testing for geotechnical investigation of Pusan clay deposits

Cited by 137 publications

References 10 publications

Integrating Geo-Electrical and Geotechnical Data for Soil Characterization

Integrating Geo-Electrical and Geotechnical Data for Soil Characterization

Electrical resistivity tomography to delineate greenhouse soil variability

Geophysical Techniques for Plant, Soil, and Root Research Related to Sustainability

Contact Info

Product

Resources

About