• Proceedings of the KSEG Conference
• /
• 2000.04a
• /
• pp.95-102
• /
• 2000

• Proceedings of the KSEEG Conference
• /
• 2007.04a
• /
• pp.667-669
• /
• 2007

• Journal of the Speleological Society of Korea
• /
• v.5 no.6
• /
• pp.10-15
• /
• 1980

동굴은 그가 위치하는 주위환경에 따라 그 특성이 달리 나타난다. 석회암지역에서 석회동굴이 형성되고 화산지역에서 용암동굴이 형성되듯이 달리 나타난다. 더구나 석회동굴은 지질구조와 밀접하게 관계되고 있는데 지질구조선에 따라 동굴은 발달한다.(중략)

• Proceedings of the KSEEG Conference
• /
• 2002.04a
• /
• pp.330-334
• /
• 2002

• Proceedings of the KSEEG Conference
• /
• 1999.04a
• /
• pp.21-23
• /
• 1999

• Proceedings of the KSEEG Conference
• /
• 2007.04a
• /
• pp.283-285
• /
• 2007

• Proceedings of the KSEEG Conference
• /
• 2007.04a
• /
• pp.361-363
• /
• 2007

• Tunnel and Underground Space
• /
• v.34 no.1
• /
• pp.28-53
• /
• 2024

In general, high-level radioactive waste (HLW) generated as a result of nuclear power generation should be disposed within the country. Determination of the disposal site and host rock for HLW deep geological repository is an important issue not only scientifically but also politically, economically, and socially. Considered host rock types worldwide for geological disposal include crystalline rocks, sedimentary rocks, volcanic rocks, and salt dome. However, South Korea consists of various rock types except salt dome. This paper not only analyzed the geological and rock mechanical characteristics on a nationwide scale with the preliminary results on various rock type studies for the disposal host rock, but also reviewed the characteristics and possibility of various rock types as a host rock through deep drilling surveys. Based on the nationwide screening for host rock types resulted from literature review, rock distributions, and detailed case studies, Jurassic granites and Cretaceous sedimentary rocks (Jinju and Jindong formations) were derived as a possible candidate host rock types for the geological disposal. However, since the analyzed data for candidate rock types from this study is not enough, it is suggested that the disposal rock type should be carefully determined from additional and detailed analysis on disposal depth, regional characteristics, multidisciplinary investigations, etc.

• Tunnel and Underground Space
• /
• v.34 no.3
• /
• pp.231-247
• /
• 2024

In the field of high-level radioactive waste disposal targeting deep rock environments, hydraulic characteristic information serves as the most important key factor in selecting relevant disposal sites, detailed design of disposal facilities, derivation of optimal construction plans, and safety evaluation during operation. Since various rock types are mixed and distributed in a small area in Korea, it is important to conduct preliminary work to analyze the hydrogeological characteristics of rock aquifers for various rock types and compile the resulting data into a database. In this paper, we obtained hydraulic conductivity data, which is the most representative field hydraulic characteristic of a high-depth volcanic bedrock aquifer, and also analyzed and evaluated the field data. To acquire field data, we used a high-performance hydraulic testing system developed in-house and applied standardized test methods and investigation procedures. In the process of hydraulic characteristic data analysis, hydraulic conductivity values were obtained for each depth, and the pattern of groundwater flow through permeable rock joints located in the test section was also evaluated. It is expected that the series of data acquisition methods, procedures, and analysis results proposed in this report can be used to build a database of hydraulic characteristics data for high-depth rock aquifers in Korea. In addition, it is expected that it will play a role in improving technical know-how to be applied to research on hydraulic characteristic according to various bedrock types in the future.

• Journal of the Korean earth science society
• /
• v.36 no.4
• /
• pp.341-350
• /
• 2015

This study is to explore geosites considering the geological characteristics in Gochang-gun and to investigate a possibility of being designated as the national geopark of Korea. In this study, the geosites within Gochang-gun are explored through literature search and field work. The results indicate that seven of the geosites in the Seonunsan area are relevant as potential national geopark, including Jinheunggul, Dosolam Maebulsang, Youngmungul, Nakjodae and Cheonmabong, Byungbawi, spherulitic rhyolite, and Dolmen site. In addition, there are other areas that have valus in terms of geological and educational aspect, including Hajeon mud flat and Myoungsasipri beach. The results of study imply that if various educational programs for the geotourism are properly developed, the Gochang-gun area has potential to be designated as the national geopark of Korea.