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Investigation Concrete Quality of Zigana and Torul Tunnels by Using GPR Method
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Near Surface Geoscience 2015 - 21st European Meeting of Environmental and Engineering Geophysics, Sep 2015, Volume 2015, p.1 - 5
Abstract
The GPR method which can display the shallow depth of the investigated surface with high reslution, is a widely- used method to investigate the concrete structure without any damage. In this study it is aim to investigate the leaking water risk areas and accordingly the evaluation of the content of the concrete structure of the Zigana Tunnel which located on the highway of Trabzon-Gümüshane and faracture-joint system, deterioration and stratigraphy of the Torul Tunnel walls. During examinations, GPR data were collected along totally 20 profiles at the entrance of the both sides of tunnels by using 500 MHz and 800 MHz shielded antennas. After applying essential data processing stages to the collected data, 2D and 3D images with ReflexW3DScan software were acquired. When analyzed amplitude-slice maps at various depths into the wall from these images; while has impaired in places of concrete structures in belonging to the Zigana Tunnel, those obtained from the Torul tunnel have been identified quite durable and high quality of concrete internal structure.