Non-Destructive Geotechnical Investigations by Ground Penetrating Radar

P144 NON-DESTRUCTIVE GEOTECHNICAL INVESTIGATIONS BY GROUND PENETRATING RADAR V. HLADIK 1 P. KLABLENA 2 J. HRUSKA 3 and F. HUBATKA 3 SUMMARY 1 Ground penetrating radar (GPR) is a very suitable method for non-destructive geotechnical investigations. This fact is illustrated by three practical examples: In the first case GPR detected a dangerous inhomogeneity in a pile. The second case shows a GPR application for compaction quality testing. Examples of both good- and poor-quality geometry of compacted layers in GPR sections are presented. In the third case an example of floor construction inspection is shown. GPR was able to detect a