USING GEORADAR (GPR) IN DETECTION OF GROUND PROBLEMS: DIYARBAKIR İSKENDER PASHA TOMBS

Aim: This study was carried out in order to determine the causes of structural problems and damages due to the ground in the tombs of Iskender Pasha Mosque. Method: Georadar (GPR) surveys were carried out by expert geophysical engineers to determine the location and level of soil-related structural problems and damages in two tombs located southeast of the Iskender Pasha Mosque. In georadar scans, Python-3 GPR device and 100 Mhz and 1.8 Ghz antenna were used. In georadar (GPR) measurement studies, data processing steps were followed and Reflex W (Sandmeier, 2003:31) program was used for these operations. Results: Structural problems, which were determined observationally by fieldwork in the tombs of İskender Pasha Mosque, were instrumentally supported by georadar (GPR) scans. As a result of the scans, voids, collapses and flooded areas on the tomb floors and their locations were determined. Conclusion: In this study, the locations and damage levels of the structural problems on the floors of the two tombs located southeast of the Iskender Pasha Mosque were determined by georadar (GPR) surveys. In the scans, it has been determined that there are subsidence deformations and areas that receive water in the first (1) and second (2) tombs, and the locations and levels of damage and deformations are shown with radargram sections. The study was completed by presenting suggestions for the structural problems that occurred in the tombs where ground surveys were made.