ABSTRACT
The program for the final disposal of low and intermediate level radioactive waste was established by Paks Nuclear Power Plant, Hungary. Preparation of final disposal has been done as part of a national program since 1993. The Central Nuclear Financial Fund and the Public Limited Company for Radioactive Waste Management (PURAM) have been established to coordinate organizations and activities for all tasks in connection, with nuclear waste treatment. The selected potential host rock is a granite complex in the Mórágy Granite Formation in the south-western part of Hungary, close to the village of Bátaapáti.
During the construction of the Bátaapáti radioactive waste repository the drill and blast excavation method was used. During the periodic verification of the blasting process, passive seismoacoustic monitoring systems were applied. Based on these measurements it was possible to set and supervise accurately the blasting quality in order to minimize the damage to the rock in vicinity of the tunnel contour. Cautious blasting is needed to minimize the Highly Damaged Zone.
The aim of this paper is to present the measuring analysis methodologies of the acquired data. Details will be explained on the dynamic numerical modeling results, on the site-specific attenuations and the blasting effects on the extension and behavior of Excavation Damage Zones.
