Akademik Veri Yönetim Sistemi
4thInternational Congress on Multidisciplinary Natural Sciences, Ankara, Türkiye, 7 - 08 Aralık 2024, ss.58, (Özet Bildiri)
The Ground Penetrating Radar (GPR) method is a geophysical technique for detecting subsurface objects and structures using electromagnetic (EM) high frequency waves. This technique examines the EM waves reflected from subsurface materials and structures. GPR mainly detects the positions and properties of subsurface objects or structures using the travel times of EM waves imposed into the subsurface. This feasibility of GPR method practically effective to locate and analyze of buried pipes and other similar entities. In this study, we aimed on buried freshwater transmission pipes in urban areas, which are operated by regional water works management. Common-offset cross-section GPR measurements were performed in order to detect and analyze buried pipes with two different antennae manufactured by two different company. In this study, Malå with 250 MHz antenna frequency and Zond with 300 MHz antenna frequency were used to acquire radargrams. The hyperbolae of the pipes on radargrams were evaluated according to their characteristics based on the technical details received from regional water works management regarding information of pipe location, its filling material, its depth and background material of buried pipe. As a result of our study, it was observed that the reflections of the pipes in the radargrams indicated similar but slightly different anomalies due to antenna frequencies, although there was no sharp distinction. However, it was noted that the GPR unit with higher frequency antenna provided better resolution with less data processing. In addition, the reflection hyperbolae of pipes were also evaluated with technical details during the construction process such as pipe depth, pipe material and background material