The application of geological radar in concrete health monitoring

The concrete health monitoring is a significant part of concrete structure construction. As an important non-destructive inspection instrument, geological radar is widely used in tunnel engineering because of the characteristics of simple operating, high resolution and visualized drawing. This paper which takes Yang Jiaba Tunnel in Lan-Yu Railway for an example provides good experience in quality monitoring of tunnel lining concrete, through illustrating the fundamental principles of geological radar,making introduction of successful application about tunnel lining concrete health monitoring and analyzing emphatically identification basis about uncompacted concrete, concrete cavity and concrete iron sparseness.