Water seepage detection using resistivity method around a pumped storage power station in China

Dusabemariya, Claire; Jiang, Fuyu; Qian, Wang; Faruwa, Ajibola Richard; Bagaragaza, Romuald; Ali, M. Hatem

doi:10.1016/j.jappgeo.2021.104320

Cited by 11 publications

(4 citation statements)

References 12 publications

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“…Resistivity method applies the electric current injection to subsurface rock bodies [8], [10]. This method uses 4 electrical conductor electrodes consisting of 2 electrical currents and 2 electrical voltage electrodes [15], [16]. Measurements were made to obtain the electrical current and voltage calculation through the subsurface rock bodies, which depended on the rock's electrical resistivity value [9].…”

Section: Methodsmentioning

confidence: 99%

Subsurface Identification using Resistivity Method for Infrastructure Planning in Benowo Area, Surabaya City

Utama,

Putra,

Indriani

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Subsurface rock identification in infrastructure construction is important to get the information in planning and monitoring the rock carrying capacity and groundwater systems for infrastructure construction. To get the subsurface condition information that are relatively shallow with detailed results, Resistivity method with Wenner configuration is used. Research is in Benowo area, where dominated by pond area. This research used 5 Resistivity lines, which are divided into 2 locations separated by distance of about 2400 meters as Z1 and Z2 areas. For the subsurface resistivity section at Z1 area there are 2 lines, while at Z2 area there are 3 lines. It is known at Z1 area, top layer is topsoil (2.26-33.00 Ωm) and the bottom layer was identified as clay (0.30-2.26 Ωm). At Z2, top layer being topsoil (0.306-0.708 Ωm), followed by clay layer (0.100-0.306 Ωm), and the sand layer (0.231-0.535 Ωm) in the bottom of resistivity model. Groundwater system shows topsoil acts as a vadose zone, clay layer acts as an aquiclude and the sand layer acts as an unconfined aquifer. Saturated water influences the low resistivity value measurement related to the environmental condition dominated by pond area, beside measurements in rainy season are also suspected to be the cause of low resistivity measured. To be applied infrastructure development in the Benowo area need further treatment activity like soil and/or rock pavement to support infrastructure safety. This research result is related to geotechnical aspects like rock coring, pavement, and optimum architectural design can be an alternative for further research.

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Section: Methodsmentioning

confidence: 99%

Subsurface Identification using Resistivity Method for Infrastructure Planning in Benowo Area, Surabaya City

Utama,

Putra,

Indriani

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Thus, ERT has become a more attractive exploration method and a proven non-invasive and cost-effective technique. Many authors have demonstrated the conceivability to obtain accurate resistivity data of the subsurface structure using 2D/3D ERT inversion models [35][36][37][38][39][40][41].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Geophysical Models to Detect Mining Tailings’ Leachates within Tailing Storage Facilities

Ali,

Mewafy,

Qian

et al. 2024

Water

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The effective detection and monitoring of mining tailings’ leachates (MTLs) plays a pivotal role in environmental protection and remediation efforts. Electrical resistivity tomography (ERT) is a non-invasive technique widely employed for mapping subsurface contaminant plumes. However, the efficacy of ERT depends on selecting the optimal electrode array for each specific case. This study addresses this challenge by conducting a comprehensive review of published case studies utilizing ERT to characterize mining tailings. Through numerical simulations, we compare the imaging capabilities of commonly used electrode configurations, six ERT arrays, aiming to identify the optimal array for MTLs’ detection and monitoring. In addition, field surveys employing ERT were conducted at the El Mochito mine tailings site to detect zones saturated with leachates within the tailing storage facilities (TSFs). The findings indicate that the “Wenner-Schlumberger” array exhibits superior data resolution for MTL detection. However, the choice of the optimal electrode array is contingent on factors such as survey location, geological considerations, research objectives, data processing time and cost, and logistical constraints. This study serves as a practical guide for selecting the most effective electrode array in the context of pollutant penetration from mining tailings, employing the ERT technique. Furthermore, it contributes valuable insights into characterizing zones saturated with mining tailing leachates within the TSFs, providing a solid foundation for informed environmental management and remediation strategies.

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“…Within the realm of hydrogeological investigations, electrical methods have consistently proven to be the most employed geophysical technique [31,32]. Changes in water saturation, temperature, and ion content are fundamental drivers of ERT variations [33,34]. Over the decades, ERT has become a staple method for solute transport and groundwater mapping [35,36].…”

Section: Introductionmentioning

confidence: 99%

Mapping Leachate Pathways in Aging Mining Tailings Pond Using Electrical Resistivity Tomography

Ali,

Mewafy,

Qian

et al. 2023

Minerals

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Mining activities often leave behind a legacy of environmental challenges, with aging tailings ponds representing a significant concern due to their potential for leachate formation and subsequent contaminant release. Thus, this study employs Electrical Resistivity Tomography (ERT) to investigate the intricate pathways of leachate within an aging mining tailings pond, addressing the pressing environmental and human health concerns associated with potential contaminant release. Ten 2D ERT profiles were acquired at the El Mochito mine waste site, covering an area of approximately half a square kilometer. These profiles, ranging in length from 104 to 363 m, provided insights into subsurface conditions down to a maximum depth of 60 m. The subsurface mapping of the ERT data showed three different geoelectric layers. The uppermost layer, with a thickness of approximately 2.5 m and resistivity values ranging from 60 to 100 Ohm.m, was identified as a dry tailing/soil zone. Beneath it, the second layer exhibited moderately resistive values (30–60 Ohm.m) with varying thicknesses of 10–20 m, signifying a percolation/leaching zone (semi-saturated zone). The third layer, characterized by substantially low resistivity (1–30 Ohm.m), indicated saturation and the presence of conductive materials, strongly suggesting active leaching. Based on these findings, this study recommends further investigation through geochemical analysis of subsurface samples and more advanced geophysical imaging techniques to validate the distribution of anomalous zones and delineate remediation pathways. This study lays the foundation for future comprehensive research that will integrate geophysical surveys with geochemical analysis and establish 4D modeling techniques to monitor pollutant penetration over time, with a particular focus on mine waste tailings mapping. Plus, this study contributes valuable insights into the characterization of leachate pathways within mining tailings ponds, offering a foundation for informed environmental management and remediation strategies.

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Water seepage detection using resistivity method around a pumped storage power station in China

Cited by 11 publications

References 12 publications

Subsurface Identification using Resistivity Method for Infrastructure Planning in Benowo Area, Surabaya City

Subsurface Identification using Resistivity Method for Infrastructure Planning in Benowo Area, Surabaya City

Numerical Simulation of Geophysical Models to Detect Mining Tailings’ Leachates within Tailing Storage Facilities

Mapping Leachate Pathways in Aging Mining Tailings Pond Using Electrical Resistivity Tomography

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