Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)

Korean Geotechnical Society (한국지반공학회)
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A Study on the Behavior of a Closely-Spaced Tunnel by Using Scaled Model Tests

축소모형실험을 통한 근접터널의 거동에 관한 연구

  • Ahn, Hyun-Ho (Dept. of Civil and Environmental System Engineering, Konkuk University) ;
  • Choi, Jung-In (Dept. of Civil and Environmental System Engineering, Konkuk University) ;
  • Lee, Seok-Won (Dept. of Civil and Environmental System Engineering, Konkuk University) ;
  • Shim, Seong-Hyeon (Civil ENG Team, Samsung Corporation)
  • 안현호 (건국대학교 사회환경시스템공학과) ;
  • 최정인 (건국대학교 사회환경시스템공학과) ;
  • 이석원 (건국대학교 사회환경시스템공학과) ;
  • 심성현 (삼성물산 건설부문 토목 ENG팀)
  • Published : 2008.03.28
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Abstract

Lots of roadway tunnel have been almost constructed in forms of closely-spaced tunnel in korea. If closely-spaced tunnel is not constructed at a sufficient distance between tunnels, the problem of stability can occur. However, the case that can not secure a sufficient distance between tunnels can occur due to a difficulty in buying a lot and an issue of popular complaint and environmental disruption. Generally, tunnels are not influenced by each other when a center distance between tunnels is two times longer than tunnel diameter under the complete elastic ground and five times under the soft ground. In this study, the scaled model tests of closely-spaced tunnel by using homogeneous material were performed and induced displacements were measured around the tunnel openings during excavation. The influence of distance between tunnels on the behavior of closely-spaced tunnel was investigated.

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Acknowledgement

Supported by : 한국건설교통기술평가원