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ISSN : 1738-1894(Print)
ISSN : 2288-5471(Online)
ISSN : 2288-5471(Online)
고준위폐기물 처분시스템 공학적 방벽에서의 지하수 포화공정 해석
An Analysis of the Water Saturation Processes in the Engineered Barrier of a High Level Radioactive Waste Disposal System
Abstract
An engineering scale test, which is called KENTEX, was carried out to understand and to analyze the coupled thermal, hydrological and mechanical phenomena in the engineered barrier system(EBS) of Korean reference disposal system. Using the experimental data obtained from KENTEX, the water saturation processes in bentonite could be analyzed. From the comparison between the model calculation using ABAQUS and the experimental results, the difference of the water content between them in the unsaturating part was large because the drying phenomena due to moisture redistribution by the temperature gradient could not be included in the model. In the saturating part, the difference of the water content between them was decreased gradually and showed to be small in the full saturation. And the time of about 95% saturation could be estimated about 500 days from the model calculation and experimental results. Also it could be known that the moisture redistribution in the unsaturated part could not be affected on the saturation time of bentonite in the repository. Therefore, it is considered that this model could be used to quantitatively predict the water saturation time in bentonite as EBS for the disposal system.
포화공정, 공학적 방벽, 벤토나이트 완충재, 열-수리-역학 복합현상, 처분, 실증실험, Saturation Processes, Engineering Buffer, Bentonite Buffer, Coupled THM, Disposal System, KENTEX
Reference
JNFCWT
Online Submission
Korean Radioactive
Waste Society (KRS)
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