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Mechanical Properties of Rocks in Dokdo  

Park, Chan (한국지질자원연구원)
Jung, Yong-Bok (한국지질자원연구원)
Song, Won-Kyong (한국지질자원연구원)
SunWoo, Choon (한국지질자원연구원)
Kim, Bok-Chul (한국지질자원연구원)
Cheon, Dae-Sung (한국지질자원연구원)
Publication Information
Tunnel and Underground Space / v.18, no.1, 2008 , pp. 69-79 More about this Journal
Abstract
Dokdo is a volcano edifice originating from an oceanic island that was formed around 3 million to 2.2 million years ago, and it consists of Dongdo(eastern island) and Seodo(western island). Even though Dokdo is a small volcanic island, Dokdo has infinite potential value and significant economic, social, scientific, and technical aspects due to its resources, ecological and territorial value. In addition, it is of national interest with regards to the dispute with Japan over the dominium of Dokdo. A need to evaluate the ground stability of Dokdo, especially in Dongdo, has been seriously raised recently due to the various cracks caused by the progressive weathering and corrosion. This study dealt with the geology and geological layers of Dokdo and identified the status of ground cracks as the previous research to evaluate the ground stability of zones of concern in Dongdo. Also, this study analyzed the relationships between physical and mechanical properties with rock types. The results showed that the values of rock properties in Dokdo are lower contrary to the general rocks in Korea, and tuff was especially affected by the weathering and corrosion.
Keywords
Dokdo; volcanic island; ground stability; weathering; mechanical properties;
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