Točno mjesec dana nakon razornog potresa koji je pogodio Petrinju, 29. siječnja 2021. provedena su eksperimentalna ispitivanja georadarom na Učiteljskom fakultetu Odsjek u Petrinji. Ispitivanja su provedena s ciljem utvrđivanja pozicija armature na stupovima i određivanja geometrije stropa. Za ispitivanja je korišten georadar StructureScan Mini XT proizvođača GSSI sa centralnom frekvencijom od 2.7 GHz.

Radargrami se dobivaju u realnom vremenu te se utvrđivanje prisustva i rasporeda armature provodi relativno brzo. Također, rezultati dobiveni georadarom su korišteni i za procjenu debljine zaštitnog sloja. S obzirom na to da detaljnija analiza debljine zaštitnog sloja zahtjeva procesiranje radargrama, daljnja analiza je izvršena na računalu uz pomoć programskog paketa Radan.

EXPERIMENTAL TESTS WITH GPR – FACULTY OF TEACHER EDUCATION IN PETRINJA

Exactly one month after a devastating earthquake hit Petrinja, on 29 January 2021, experimental ground-penetrating radar (GPR) tests were conducted at Faculty of Teacher Education, Department in Petrinja. The tests were carried out with the aim of determining the positions of the reinforcement on the columns and to determine the geometry of the slab. The GPR is a StructureScan Mini XT from the company GSSI with a centre frequency of 2.7 GHz.

The location of the reinforcement in the columns was determined on site, while the analysis of the radargrams with the aim of determining the geometry of the slab was carried out afterwards using the Radan software package. GPR has proven to be a very effective tool in the investigation of the Faculty of Teacher Education.