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Thermal-mechanical sensitivity analysis for the near-field of HLW repository  

권상기 (한국원자력연구소 방사성폐기물처분연구팀)
최종원 (한국원자력연구소 방사성폐기물처분연구팀)
강철형 (한국원자력연구소 방사성폐기물처분연구팀)
Publication Information
Tunnel and Underground Space / v.13, no.2, 2003 , pp. 138-152 More about this Journal
Abstract
Three-dimensional computer modeling using FLAC3D had been carried out fur evaluating the thermal-mechanical stability of a high-level radioactive waste repository excavated in several hundred deep location. For effective modeling, a FISH program was made and the geological conditions and rock properties achieved from the drilling sites in Kosung and Yusung areas were used. Sensitivity analysis fer the stresses and temperatures from the modeling designed utilizing fractional factorial design was carried out. From the sensitivity analysis, the important design parameters and their interactions could be determined. From this study, it was found that deposition hole spacing is the most important parameter on the thermal and mechanical stability. The second and third most important parameters were disposal tunnel and buffer thickness.
Keywords
HLW repository; sensitivity analysis; TM coupling;
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