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2015 Vol.17, Issue 3
Effect of orientation of fracture zone on tunnel behavior during construction using model test

실내 모형실험을 통한 시공 중 파쇄대의 공간적 분포가 터널거동에 미치는 영향

Yun-Gyu Cho1
,
Seung-Min Shin1
,
Eun-Mok Chung2
,
Jung-Hyuk Choi2
,
Chung-Sik Yoo3*
조 윤규1
,
신 승민1
,
정 은목2
,
최 정혁2
,
유 충식3*
1Graduate Student, Dept. of Global Construction Engineering, Sungkyunkwan Univ.
2Graduate Student, Dept. of Civil&Envir Engineering, Sungkyunkwan Univ.
3Professor, Dept. of Civil Engineering, Sungkyunkwan Univ.
1성균관대학교 글로벌건설엔지니어링학과 석사과정
2성균관대학교 건설환경시스템공학과 석사과정
3성균관대학교 건설환경시스템공학과 교수
*교신저자. *Corresponding Author. 
31 May 2015. pp. 189-204
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Abstract

This paper presents the results of reduced scale model tests on the effect of fault zone characteristics on the tunnel deformation behavior. A series of model tests were carried out on deep tunnels considering different fault zone orientations and offset distance. The tunnelling process was simulated in the model tests using compressed air technique. During the tests, the tunnel and ground deformation were mainly monitored while reducing the pressure inside the tunnel and the relationship between the pressure level and the tunnel deformation were established. The results indicate that for a given offset distance the tunnel behavior is influenced the most when the fault zone dips vertically while smallest influence occurs when the fault zone dips 45 degrees.

Keywords
Tunnel
Fracture zone
Reduced-scale model test
Drill and blast tunnel
Excavation

본 논문에서는 축소 모형실험을 이용한 파쇄대의 공간적 분포 특성이 터널의 거동에 미치는 영향에 대한 내용을 다루었다. 모형실험 조건으로 터널과 파쇄대의 이격 거리 및 지표면과 이루는 경사에 대해서 실험을 수행하였다. 터널 시공 과정을 압축공기기법으로 모사하였으며 실험 중에 터널의 내부 압력을 제거 하는 동시에 터널 및 지반에 발생하는 변형을 모니터링 하였다. 실험 결과 파쇄대 이격 거리에 따라서 터널 거동에 영향을 미치며 파쇄대가 수직일 경우 터널에 가장 큰 영향이 발생하며 파쇄대 경사 45도에서 가장 작은 영향이 발생하는 것으로 나타났다.

키워드
터널
파쇄대
축소모형실험
발파 굴착 터널
굴착
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Information
  • Publisher :Korean Tunneling and Underground Space Association
  • Publisher(Ko) :한국터널지하공간학회
  • Journal Title :Journal of Korean Tunnelling and Underground Space Association
  • Journal Title(Ko) :한국터널지하공간학회 논문집
  • Volume : 17
  • No :3
  • Pages :189-204
  • Received Date : 2015-01-09
  • Revised Date : 2015-03-02
  • Accepted Date : 2015-03-13
  • DOI :https://doi.org/10.9711/KTAJ.2015.17.3.189
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