Application of 2D and 3D geoelectrical resistivity imaging for engineering site investigation in a crystalline basement terrain, southwestern Nigeria

Aizebeokhai, Ahzegbobor P.; Olayinka, A. I.; Singh, V. S.

doi:10.1007/s12665-010-0464-z

Cited by 76 publications

(33 citation statements)

References 13 publications

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“…Different prospecting techniques have been employed to detect underground voids. In this way, the electrical resistivity approach has been frequently used [20][21][22], and [23]. Underground voids such as caves, cellars, aqueduct tunnels, etc.…”

Section: Introductionmentioning

confidence: 99%

CRSP, numerical results for an electrical resistivity array to detect underground cavities

Amini¹,

Ramazi²

2017

Open Geosciences

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This paper is devoted to the application of the Combined Resistivity Sounding and Profiling electrode configuration (CRSP) to detect underground cavities. Electrical resistivity surveying is among the most favorite geophysical methods due to its nondestructive and economical properties in a wide range of geosciences. Several types of the electrode arrays are applied to detect different certain objectives. In one hand, the electrode array plays an important role in determination of output resolution and depth of investigations in all resistivity surveys. On the other hand, they have their own merits and demerits in terms of depth of investigations, signal strength, and sensitivity to resistivity variations. In this article several synthetic models, simulating different conditions of cavity occurrence, were used to examine the responses of some conventional electrode arrays and also CRSP array. The results showed that CRSP electrode configuration can detect the desired objectives with a higher resolution rather than some other types of arrays. Also a field case study was discussed in which electrical resistivity approach was conducted in Abshenasan expressway (Tehran, Iran) U-turn bridge site for detecting potential cavities and/or filling loose materials. The results led to detect an aqueduct tunnel passing beneath the study area.

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Section: Introductionmentioning

confidence: 99%

CRSP, numerical results for an electrical resistivity array to detect underground cavities

Amini¹,

Ramazi²

2017

Open Geosciences

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“…The profiles acquired across the study area using a multi-electrodes acquisition system in a Wenner array configuration with electrode spacing of 10 m were used for the profiling. The ten geoelectrical sections were obtain up to penetration depth of about 27 m for a total length of 150 m. 3D geoelectrical resistivity survey with a 3D model of interpretation, where the resistivity values are allowed to vary in all the three directions, namely vertical, lateral and perpendicular directions, should in theory give a more accurate and reliable results [8]. Apparent resistivity data of the 2D profiles over the models were collated to 3D data sets for each array studied.…”

Section: Results Of Resistivity Acquisitionmentioning

confidence: 99%

“…To indicate the seawater intrusion in the study area, analysis of chlorides ion levels from production wells is performed. Geoelectrical resistivity imaging has played an important role in addressing a wide variety of hydrogeological, environmental and geotechnical issues [8][9][10]. The goal of geoelectrical resistivity surveys is to determine the distribution of subsurface resistivity by taking measurements of the potential difference on the ground surface.…”

Section: Introductionmentioning

confidence: 99%

Application of 3D Resistivity Method for Distribution of Seawater Intrusion in The Tanah Mas Residential North Semarang

Putro

Supriyadi²,

Khumaedi³

2016

Nat-B

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The seawater intrusion into the groundwater in Tanah Mas Residential North Semarang was investigated by chlorides ion levels from production wells and 3D electrical resistivity profiling. Tanah Mas residential area is a densely populated area located in the northern coastal city of Semarang. At the area, the exploitation of groundwater through production wells is quite high, that potential to produce the phenomenon of seawater intrusion. Analysis of groundwater samples from production wells was carried out as an early indication of the seawater intrusion in the study area. The profiles acquired across the study area, using a multi-electrodes acquisition system in a Wenner array configuration by electrode spacing of 10 m were used for the profiling. The results of groundwater chemical testing, there are three groundwater samples that has high levels of chloride ions. Three groundwater samples have the high levels of chloride ions that are in wells F, J and M. Apparent resistivity data of the 2D profiles over the models were collated to 3D data sets for each array studied. From 3D electrical resistivity profiling, obtained the distribution of seawater intrusion that has reached the north, east and south of Tanah Mas residential.

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“…Ritz et al 1999;Aizebeokhai et al 2010). High-resistivity zones in the upper regolith are either dry material, hard ferruginous crusts in the laterite or granitic boulders.…”

Section: Examples Of Interpreted 2d Imaging Profilementioning

confidence: 99%

An investigation of the basement complex aquifer system in Lofa county, Liberia, for the purpose of siting boreholes

Elster

Holman

Parker

et al. 2014

QJEGH

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Liberia is recovering from a 14 year civil war and only 51% of the rural population has access to safe drinking water. Little hydrogeological knowledge survives in Liberia, increasing the difficulty in successfully siting new boreholes. An understanding of the local hydrogeological environment is therefore needed to improve borehole site selection and increase success rates. This research provides a semi-quantitative characterization of the hydrogeological environment of the basement aquifer in Lofa county, Liberia. Based on literature review and analysis of borehole logs, the study has developed a conceptual hydrogeological model for the local conditions, which is further characterized using 2D geoelectrical sections. Groundwater is predominantly obtained from the saprolite and underlying fractured bedrock, but specific capacities (median 281 l h −1 m −1 ; 25th and 75th percentile of 179 and 490 l h −1 m −1 , respectively) are constrained by the limited thickness of the saturated saprolite. This study has shown that the groundwater resources in the crystalline basement in this part of Liberia conform to the general conceptual model, allowing standard techniques used elsewhere for siting and developing groundwater to be used.2013-068r esearch-articleResearch ArticleXXX10.1144/qjegh2013-068D. Elster et al.

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Application of 2D and 3D geoelectrical resistivity imaging for engineering site investigation in a crystalline basement terrain, southwestern Nigeria

Cited by 76 publications

References 13 publications

CRSP, numerical results for an electrical resistivity array to detect underground cavities

CRSP, numerical results for an electrical resistivity array to detect underground cavities

Application of 3D Resistivity Method for Distribution of Seawater Intrusion in The Tanah Mas Residential North Semarang

An investigation of the basement complex aquifer system in Lofa county, Liberia, for the purpose of siting boreholes

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