Detection for severe caves and sinkholes in non-clastic rock type using GPR technique | ||
| NRIAG Journal of Astronomy and Geophysics | ||
| Volume 12, Issue 1, December 2023, Pages 121-131 PDF (27.81 M) | ||
| DOI: 10.1080/20909977.2023.2270859 | ||
| Authors | ||
| Khamis Mansour; Mohamed ABD El Zaher; Mahmoud Hafiz; Shereen Ebrahim; Mahmoud Gomaa; Mohamed Salem | ||
| Abstract | ||
| This study examines the application of Ground Penetrating Radar (GPR) to the detection of severe caverns and sinkholes in non-clastic rock formations. Due to the presence of vertically sloping bedrock, cavities, and sinkholes, geotechnical engineers face significant challenges when designing and constructing foundations in karstic formations such as limestone. The territory under investigation is located close to the Giza limestone plateau, the northern side of which has experienced severe stability issues. The ground-penetrating radar (GPR) method was used to identify the presence and extent of exposed caves and caverns in the studied region. The research area’s geological and geomorphological background is explored, including the creation of primary and secondary caves, as well as solution caves generated by the breakdown of soluble rocks like limestone. Data collecting, processing, and interpretation procedures used in the GPR survey are described. GPR survey findings revealed the existence of a severe cave and many minor sinkholes in the studied region. GPR has shown to be a useful and efficient tool for determining geometric karst features in the subsurface, helping to a better evaluation of the dangers associated with this geological environment. | ||
| Keywords | ||
| GPR; cave detection; sinkholes; karstic formations; Giza plateau | ||
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