A Study on the Improvement of Connection Method for Segment in Tunnel Lining System Using Prestressed Steel Cable by Real-scale Test

Sang-Joon Ma; Hu-Jeong Gil; Dong-Min Kim

doi:10.7843/kgs.2013.29.6.33

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A Study on the Improvement of Connection Method for Segment in Tunnel Lining System Using Prestressed Steel Cable by Real-scale Test 실대형 실험을 통한 쉴드터널의 강연선 체결방식에 대한 역학적 거동 분석

30 June 2013. pp. 33-51

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Abstract

This paper introduces the improvement of connection method for segment in tunnel lining system using prestressed steel cable and presents the results of real-scale tests. It conducted a study about the applicability and mechanical behaviour analysis of the new method that connects segment tunnel lining using prestressed steel cable by real-scale test. Through the research, it was found that the new method has stronger connection than conventional assembling methods. Also, the new method can be expected to have integrated behavior and stability increase of shield tunnel lining. It is considered that the new method is much more effective than conventional assembling methods.

Keywords

Shield

Prestressed steel cable

Real-scale test

Tensile force

Assembling system

본 논문에서는 현재 개발 중인 쉴드터널의 강연선 체결 방식에 대해 소개하고 두 번에 걸친 실대형 세그먼트 체결시험 결과를 나타내었다. 실대형 세그먼트 체결시험을 통해 기존 볼트 체결 방식과 강선을 이용한 체결 방식을 비교하여 체결재로써의 강연선 적용 가능성에 대한 검토를 수행하고, 강연선 체결 방식 적용 시 세그먼트에 발생하는 체결력의 역학적 거동을 분석하였다. 연구를 통해 기존 세그먼트 체결장치와 비교하여 높은 체결력을 얻을 수 있으며, 터널 세그먼트 전체의 일체화 거동 및 구조적인 안정성 증가를 기대할 수 있음을 확인하였다. 또한, 볼트 체결 대비 강연선 체결 방식이 세그먼트 체결에 더 효과 적일 수 있으며, 강연선이 세그먼트 체결 장치로서의 적용성도 좋은 것으로 사료된다.

References

1.Chung, J. S., Oh, S. J., Boo, S. D., and Koo, H. S. (2000), “A Study on Prestressing Order of Tendons for PSC Box Girder Bridges”, Proceedings of Korea Society of Civil Engineers (KSCE) Conference 1993, KSCE, pp.51-54.

2.Ha, S. S., Cho, K. R., Kim, S. H., Moon, J. H., and Lee, L. H. (2004), “An Experimental Study on the Structural Behavior of the PC Beam-Column Exterior Joint wIih Strand”, Journal of Architectural Institute of Korea Structure & Construction, Vol.20, No.10, pp. 119-126.

3.Jeong, G. H., Yu, C. D., Cho, S. H., Hwang, K. T., Kim, T. H., and Jung, D. (2004), “A Trend Study of Shield Segment in Japan & Korea”, Proceedings of Korean Tunneling Association (KTA) 2004 Symposium, Seoul, Korea.

4.KICTTEP (Korea Institute of Construction & Transportation Tech-nology Evaluation and Planning) (2010), “Planning Research of TBM Technical Development for Mechanization and Automation in Tunnelling”, Planning Research Report of KICT.

5.KICT (Korea Institute of Construction Technology) (2012), “Develop-ment of Cable Assembling System of Segment Tunnel Lining for Economics Improvement Leakage Reduction”.

6.Kazuyoshi Nishikawa (2003), “Development of a prestressed and precast concrete segmental lining”, Tunnelling and Underground Space Technology 18, pp. 243-251.

7.Masanori, K., Ikuo, O.E., Noriyuki, A., and Masaaki, N. (2002), “Development of New Type Segment Joint”, Proceedings of the Symposium on Underground Space Vol.7, JSCE.

Information

Publisher :The Korean Geotechnical Society
Publisher(Ko) :한국지반공학회
Journal Title :Journal of the Korean Geotechnical Society
Journal Title(Ko) :한국지반공학회 논문집
Volume : 29
No :6
Pages :33-51
Received Date : 2013-03-20
Accepted Date : 2013-06-13
DOI :https://doi.org/10.7843/kgs.2013.29.6.33

Journal of the Korean Geotechnical Society ISSN:1229-2427(Print) 2288-646X(Online) 한국지반공학회 논문집

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