Browse > Article
http://dx.doi.org/10.9720/kseg.2021.3.367

Numerical Analysis Study for Behavioral Characteristics Analysis of Jeju Natural Caves (Jaeamcheon Lava Tube) That Intersect with Roads  

Lee, Jong-Hyun (Department of Geotechnical Engineering Research, Korea Institute of Civil Engineering and Building Technology)
Jin, Hyun-Sik (Geotechnical Division, HNG Consultants Co., Ltd.)
An, Joon-Sang (Construction IT Laboratory, BasisSoft, Inc.)
Baek, Yong (Department of Geotechnical Engineering Research, Korea Institute of Civil Engineering and Building Technology)
Publication Information
The Journal of Engineering Geology / v.31, no.3, 2021 , pp. 367-380 More about this Journal
Abstract
This study evaluated the stability through a three-dimensional numerical analysis method when a natural cave exists under a road in operation in Jeju Island. In order to confirm the geometric and geotechnical characteristics of the Jeju natural cave passing under the road, existing geotechnical survey reports were collected, and were studied the characteristics. In order to evaluate the effect of vehicle vibration loading on the natural cave in Jeju, three-dimensional numerical analysis was performed considering discontinuities. Through this, the stability of roads and caves with respect to vehicle speed and the depth of cover (distance from the road to the top of the natural cave) was evaluated and countermeasures were suggested. In order to secure the long-term stability of the Jeju natural cave that penetrates the lower part of the road, it was evaluated that systematic management such as long-term measurement management, reinforcement measures, and emergency measures would be necessary depending on the depth of the cover.
Keywords
natural cave; long-term stability; vehicle vibration loading; numerical analysis;
Citations & Related Records
연도 인용수 순위
  • Reference
1 JCRC (Jejudo Cave Research Center), 2019, Jeju island natural cave exploration, investigation and research report (in Korean).
2 Jeju-city, 2015, Report on the detailed inspection of Jaeamcheon-gul cave and establishment of maintenance and reinforcement measures, Jeju Special Self-Governing Province, Jeju-city (in Korean).
3 KCSC (Korean Construction Standards Center), 2018, KDS Code - 17 10 00 : Seismic design general (in Korean).
4 Kim, B.H., 2007, Preserving and managing lava tubes in Jeju island, Master's Thesis, Department of Education, Graduate School, Cheju National University, 94-96 (in Korean with English abstract).
5 Lambert, D.W., Adams, G.L., Fodor, B., 2012, Use of electrical resistivity surveying to evaluate collapse potential related to road construction over a cave, In Symposium on the Application of Geophysics to Engineering and Environmental Problems, Society of Exploration Geophysicists, 415-422.
6 Lee, K.C., Song, J.Y., Ahn, U.S., Park, Y.C., Cho, K.N., 2021, A study on the vehicles and construction equipments vibration characteristics of Geomunoreum lava tube system, Jeju island, Journal of the geological society of Korea, 57(2), 209-225 (in Korean with English abstract).   DOI
7 Bentley Systems International Ltd., 2021, PLAXIS 3D CONNECT Edition V21.01, User Manuals, Delft, Netherlands.
8 Lee, J.H., Jung, H.Y., Baek, Y., 2020b, A study on vibration characteristics by vehicle at the intersection of road and lava tube in Jeju, The Korean Society of Engineering Geology, Fall Conference, 60p (in Korean).
9 SAJWTH (Special Autonomy for Jeju the World Treasure Headquarters), 2020, Jeju island natural cave conservation management plan research and investigation report (in Korean).
10 Lee, J.H., Jin, H.S., Baek, Y., 2020a, The development of road management technique against ground subsidence at the intersection of road and lava tube in Jeju, The Korean Society of Engineering Geology, Fall Conference, 59p (in Korean).
11 MCT (Ministry of Construction & Transportation), 1997, Seismic design standards II (in Korean).
12 Ministry of Environment, 2002, A study on the evaluation of building damage due to vibration (in Korean).