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http://dx.doi.org/10.9720/kseg.2014.2.247

Rock Mechanics Modeling of the Site for the 2nd Step Construction of the KAERI Underground Research Tunnel (KURT)  

Jang, Hyun-Sic (Department of Geophysics, Kangwon National University)
Ko, Chi-Hye (Department of Geophysics, Kangwon National University)
Bae, Dae-Seok (Korea Atomic Energy Research Institute)
Kim, Geon-Young (Korea Atomic Energy Research Institute)
Jang, Bo-An (Department of Geophysics, Kangwon National University)
Publication Information
The Journal of Engineering Geology / v.24, no.2, 2014 , pp. 247-260 More about this Journal
Abstract
Rock masses at the site for the $2^{nd}$ step construction of the KAERI Underground Research Tunnel (KURT) are divided into six units to establish a rock mechanics model that is dependent on the geological characteristics and degree of joint development. The site primarily consists of three granitic units (G1, G2, and G3), two dykes (D1 and D3), and a fault zone of poor rock mass quality (F3). The F3 unit crosses the tunnel at the beginning of the site of $2^{nd}$ step construction. The rock masses of each unit are classified by RMR (Rock Mass Rating), Q-system, and RMi (Rock Mass Index), all based on borehole logging data. The deformation modulus, rock mass strength, cohesion, and friction angle for each unit are calculated using established empirical relationships. The representative rock mass classification and geotechnical parameters for the rock mass units are established, and a rock mechanics model for the site is proposed, which will be useful in the design and stability analysis of the $2^{nd}$ step construction of KURT.
Keywords
rock mass unit; rock mass classification; geotechnical parameters; rock mechanics modeling;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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