Probability safety assessment for LILW silo repository in earthquake scenario using domestics earthquake list

To understand and examine the safety of disposal facility, we developed the safety assessment model with the Monte Carlo based simulation frame, Goldsim, and analyzed both the radio-biological effects and the sensitivity of various input parameters . In this work, the safety assessment model is newly modified to evaluate the safety of disposal facility under the earthquake scenario, and the domestic earthquake list was adopted for site-specific assessment. Simultaneously, we developed an earthquake analysis program with the template of MATLAB to reinforce the utilization of the research results. From the multiple earthquake scenario simulations, it was deduced that the repository provides a robust safety against for the seismic effect, and no simulation case exceeds the safety limit. In particular, the maximum risk of 5.81×10^-11 yr^-1 calculated from this work corresponds to 0.006% of the regulatory criterion of 10^-11 yr^-1