Application of SFRC as a lining material in tunnels

Sang-Keun Yi; Dong-In Kim; Gyu-Seung Jo

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2001 Vol.3, Issue 4 Preview Page Next Page

Application of SFRC as a lining material in tunnels 터널라이닝 구조재로서 SFRC 적용에 관한 연구

31 December 2001. pp. 25-34

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Abstract

As the topography of Korea consists of mountains at about seventy percent, there is necessarily an increasing demand for tunnel construction according to the expansion of the existing highway and construction of new highway. The concrete lining of tunnel portals has been designed with reinforced concrete to resist the cracking due to the difference in temperature in the inside and outside of tunnel. In the paper, the application of steel fiber reinforcement concrete was analyzed as the lining concrete at tunnel portals and through structure analysis and field model test the suitability of thesteel fiber reinforcement concrete was assessed as the lining member of tunnel portal.

Keywords

SFRC

산지가 70%를 차지하고 있는 우리나라 지형특성상 고속도로 건설에 비례하여 터널연장의 증가는 필연적이라 할 수 있다. 본 연구에서는 터널 내,외부의 온도차이에 의한 균열에 저항할 수 있도록 하기 위해 터널 입,출구부에 설치되는 철근콘크리트 라이닝의 시공성 및 안전성,경제성을 확보할 수 있는 방안으로 강섬유보강 콘크리트(Steel Fiber Reinforcement Concrete, SFRC)의 적용성에 대해 연구하였다. SFRC의 특징을 조사하고 터널 갱구부 라이닝 구조부재로서 구조해석과 현장 시험시공을 통해 SFRC의 적용방안과 차후 확대 적용을 위한 개선방안을 제시하였다.

키워드

강섬유보강콘크리트

References

1. Kaser P.K. (1980), “Effect of stress- history on the deformation behavior of underground openings”, 13th Canadian Rock Mechanics Symp., Cmm, Montreal, pp.133∼40

2. America Concrete Institute (1986), Guide to Shotcrete by ACI Committee 506, ACI 506R-85, Detroit

3. America Concrete Institute (1989), State-of-Art Report on Fiber Reinforced Shotcrete, Reported by ACI Committee 506, ACI 506.1R-84, Detroit

4. Bernhard R. Maidi (1991), “Steel Fibre Reinforced Concrete”, pp. 41∼25

5. 社團法人鋼材俱樂部 “Manual of Steel Fiber Reinforced Concrete”[第3版], pp.9∼5

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 : 3
No :4
Pages :25-34

Journal of Korean Tunnelling and Underground Space Association ISSN:2233-8292(Print) 2287-4747(Online) 한국터널지하공간학회 논문집

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