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TBM segment lining section design of hypothetical subsea tunnels

가상 해저터널 TBM공법 적용 시 세그먼트 단면설계

Jung-Hyuk Choi1
,
Chung-Sik Yoo2*
최 정혁1
,
유 충식2*
1Graduate Student, Dept. of Civil&Envir Engineering, Sungkyunkwan Univ.
2Professor, Dept. of Civil Engineering, Sungkyunkwan Univ.
1성균관대학교 건설환경시스템공학과 석사과정
2성균관대학교 건설환경시스템공학과 교수
*교신저자. *Corresponding Author. 
31 January 2015. pp. 49-63
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Abstract

In this paper, the results of evaluation on the member forces in the virtual subsea tunnel lining segments and optimal thickness of the segment with changes in depth were presented. To evaluate member forces on the hypothetical subsea tunnelling cases were developed and the segmental lining member forces were calculated by performing structural analysis using the 2-Ring Beam model. Through a preliminary reinforcement design review of the cross-section using calculated member force, optimal reinforcement design was selected. Based on the results, the variations of member forces with construction conditions such as the cover depth and the hydraulic pressure are presented. In addition, optimum segment lining designs were developed for various tunnelling conditions.

Keywords
TBM tunnel
Segment lining
2-Ring Beam-spring model
Member forces
Subsea tunnel

본 논문에서는 가상 해저터널의 세그먼트 라이닝의 부재력 평가하여 수심별 세그먼트 최적 두께 산정 및 하중식에 따른 부재력 변화에 관한 내용을 다루었다. 가상 해저터널의 세그먼트 부재력을 평가하기 위해 먼저 다양한 설계 조건을 도출하고 이에 대해 2-Ring Beam 모델을 이용한 구조해석을 수행하여 부재력을 산출하였다. 산출한 부재력을 이용하여 예비 철근 배근을 통해 단면검토를 수행하여 각각의 지층별로 철근 배근을 조절하여 최적 두께를 산정하였다. 검토 결과를 토대로 시공조건에 따른 부재력 변화 경향을 검토하였으며 아울러 다양한 시공조건에 따른 최적 라이닝 단면을 제시하였다.

키워드
TBM 터널
세그먼트라이닝
2 링 빔 모델
부재력
해저터널
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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 :1
  • Pages :49-63
  • Received Date : 2015-01-14
  • Revised Date : 2015-01-26
  • Accepted Date : 2015-01-29
  • DOI :https://doi.org/10.9711/KTAJ.2015.17.1.049
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