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http://dx.doi.org/10.17703/JCCT.2022.8.3.551

Geologic Structure and Rocks as Geotechnical Risk Factors at Intermediate depth Tunneling in Korea  

Ihm, Myeong Hyeok (Dept. of Construction Safety Engineering, Daejeon Univ)
Publication Information
The Journal of the Convergence on Culture Technology / v.8, no.3, 2022 , pp. 551-557 More about this Journal
Abstract
Geotechnical risk factors encountered in intermediate-depth underground tunnel construction are diverse, and the types and standards of risk factors are different according to the depth and regional geological characteristics of Korea. In order to understand the effects of geological characteristics and geologic structure on safety, which show various porous characteristics of urban underground complex ground, the risk factors of intermediate-depth rock mass in Korea were analyzed based on domestic and foreign cases. As a result of the study, seven categories affecting the stability of the intermediate-depth tunneling, namely, geologic structure, rock characteristics, hydrogeology, overburden, high stress, ground characteristics and artificial structures, and about 22 risk factors were derived. We present the risk criteria and interval values for risk evaluation of faults, folds, dikes, and rocks that have the greatest influence among risk factors. Criteria and interval values for other risk factors are under study.
Keywords
Intermediate-depth; Tunneling; Risk Factor; Geologic Structure; Rocks;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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