Integration of GPR and EMI Techniques for Engineering Applications in New Nubariya District, Egypt

Ali Abdalsalam, Department of Earth Science, Damanhour University, Damanhour, 22516, EgyptFollow
Osman Badran, Department of Earth Science, Damanhour University, Damanhour, 22516, Egypt
Elhamy A. Tarabees, Department of Earth Science, Damanhour University, Damanhour, 22516, Egypt
Abdellatif Younis, National Research Institute of Astronomy and Geophysics NRIAG, Helwan, 11421, Egypt

Article Type

Research Article

Subject Area

Marine Geophysics

Abstract

The Egyptian government has initiated an ambitious urban development initiative, encompassing the creation of new cities across different parts of the country. One significant project within this endeavor is the establishment of New Nubariya-2 city along the Wadi El Natrun - El Alamein Road, forming part of the broader framework of the New Nubariya district. Cavities in urban areas pose significant problems such as sinkholes and subsidence which can damage buildings, roads, and utility lines. To tackle these challenges, an integrated approach utilizing Ground Penetration Radar (GPR) and Electromagnetic Induction (EMI) surveys was employed to detect cavities effectively. This methodological fusion enhances the ability to identify potential hazards and mitigate risks within urban environments.

The GPR survey utilizing a 100 MHz shielded antenna revealed hyperbolic curves indicative of reflections attributable to abnormal features due to man-maid activity (mining and crushing) along Road N1 and N2. The EMI survey conducted using the EM34-3 system in both Horizontal Dipole Mode (HDM) and Vertical Dipole Mode (VDM) highlighted predominantly high conductivity values throughout the study area, primarily attributed to the prevalence of clay material. Two distinct zones with significantly high conductivity values were evident in the northeastern and southeastern sectors. In the northeastern region, conductivity values peaked at 143 mS/m. These features may be aligned with the presence of gravel-crushing operations in the same area. In contrast, the southeastern region showed elevated conductivity values, indicating potential fracture zones. The results exhibit high accuracy in cavity detection using both GPR and EMI surveys.

Full Text of Submission

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Recommended Citation

Abdalsalam, Ali; Badran, Osman; Tarabees, Elhamy A.; and Younis, Abdellatif (2024) "Integration of GPR and EMI Techniques for Engineering Applications in New Nubariya District, Egypt," Blue Economy: Vol. 2 : Iss. 2 , Article 2.
Available at: https://doi.org/10.57241/2805-2994.1026