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http://dx.doi.org/10.7474/TUS.2022.32.6.397

Evaluation on the Discontinuity Characteristics and Rock Quality Designations of the Rock Mass around KURT  

Seungbeom, Choi (Korea Atomic Energy Research Institute)
Kyung-Woo, Park (Korea Atomic Energy Research Institute)
Yong-Ki, Lee (Korea Atomic Energy Research Institute)
Publication Information
Tunnel and Underground Space / v.32, no.6, 2022 , pp. 397-410 More about this Journal
Abstract
The safety of the disposal repository for high level radioactive waste should be guaranteed for a quite long period so that the precise evaluations are required. The site characteristics of the discontinuities are essential part of the safe repository design including engineered barrier and natural barrier systems. The discontinuities act like weak planes and at the same time, they act as flow paths so that their features should be investigated thoroughly. RQD (Rock Quality Designation) is one of the most widely applied characterizing methods due to its simplicity, however, modified designations have been proposed because RQD has some drawbacks, such as its directivity and dependence on the threshold length. This study aims to evaluate the applicability of the modified designations by applying them to the rock mass around KURT and to produce fundamental database that will be utilized in future studies.
Keywords
Discontinuity distribution; Modified rock quality designation; KURT; Applicability;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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