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http://dx.doi.org/10.7474/TUS.2022.32.6.435

Geoscientific Research of Bedrock for HLW Geological Disposal using Deep Borehole  

Dae-Sung, Cheon (Geology Division, Korea Institute of Geoscience and Mineral Resources)
Won-Kyong, Song (Geology Division, Korea Institute of Geoscience and Mineral Resources)
You Hong, Kihm (Geology Division, Korea Institute of Geoscience and Mineral Resources)
Seungbeom, Choi (Disposal Safety Evaluation Research Division, Korea Atomic Energy Research Institute)
Seong Kon, Lee (Mineral Resources Division, Korea Institute of Geoscience and Mineral Resources)
Sung Pil, Hyun (Climate Change Response Divsion, Korea Institute of Geoscience and Mineral Resources)
Heejun, Suk (Climate Change Response Divsion, Korea Institute of Geoscience and Mineral Resources)
Publication Information
Tunnel and Underground Space / v.32, no.6, 2022 , pp. 435-450 More about this Journal
Abstract
In step-by-step site selection for geological disposal of high-level radioactive waste, parameters necessary for site selection will be acquired through deep drilling surveys from the basic survey stage. Unlike site investigations of rock mass structures such as tunnels and underground oil storage facilities, those related to the geological disposal of high-level radioactive waste are not only conducted in relatively deep depths, but also require a high level of quality control. In this report, based on the 750 m depth drilling experience conducted to acquire the parameters necessary for deep geological disposal, the methodology for deep drilling and the geology, geophysics, geochemistry, hydrogeology and rock mechanics obtained before, during, and after deep drilling are discussed. The procedures for multidisciplinary geoscientific investigations were briefly described. Regarding in-situ stress, one of the key evaluation parameter in the field of rock engineering, foreign and domestic cases related to the geological disposal of high-level radioactive waste were presented, and variations with depth were presented, and matters to be considered or agonized in acquiring evaluation parameters were mentioned.
Keywords
High level radioactive waste; Geological disposal; Deep borehole investigation; Geoscientific research; In-situ stress;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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