Characterization of deterioration of concrete lining in tunnel structures

The objective of this study is to evaluate the durability and deterioration of concrete lining in the seven conventional tunnels. These tunnels were constructed about 40~70 years ago, and closed about 10~40 years ago. The field investigation and various laboratory testings were performed for this study. It was observed from the visual examinations that the concrete linings of 7 tunnels were severely deteriorated, such as, cracks, leakages, desquamation, and exploitations. The compressive strengths obtained from rebound hardness method and uniaxial compressive strength test on core specimens largely differed depending on the locations in the tunnel. The maximum compressive strength of concrete lining was greater about 2 times than the minimum compressive strength of concrete lining in the same tunnel. The results of micro-structural analysis showed that the substances deteriorating the concrete lining, such as ettringite and thaumasite, were detected in the concrete lining of tunnel.

keywords: Tunnel, concrete lining, durability, compressive strength, deterioration, 장대도로터널, 자연환기력, 기압장벽고, 굴뚝효과, 풍압

Reference

1. 배규진, 이성원, 조만섭, 이광호 (2001), “국내외 터널구조물의 변상에 관한 조사 및 분석”, 터널기술, 한국터널공학회 논문집, 제3권, 제3호, pp. 31-43.

2. 서울특별시 (1998), 콘크리트 구조물의 부식상태 조사및 방지대책에 관한 연구.

3. 오혁희, 신용석, 이종우, 박남서, 김영근 (2001), “터널구조물의 상태평가 기준에 관한 연구”, 터널기술, 한국터널공학회 논문집, 제3권, 제4호, pp. 35-55.

4. 岸谷孝一, 樫野紀元 (1979), “コンクリート中の鐵筋の腐食に關する硏究(その1コンクリートの中性化深さが鐵筋腐食に及ぽす影響について), 日本建築學會論文報告集, 第283号, pp. 11-16.

5. 新堀敏彦, 松田芳範, 下山貴史 (2003), “鐵道トンネルの剝離․剝落對策の現狀”, トンネルと地下, Vol. 34,No. 1, pp. 43-47.

6. 猪態明 (2004), “現場技術者のためにトンネル維持管理の實際”, 山海堂.

7. 日本建築學會 (1983), “コンクリート强度推定のための非破壞試驗方法マニュアル, pp. 22-28.

8. Al-Amoudi, O.S.B. (2004), “Attack on Plain and Blended Cement Aggressive Sulfate Environments”, Cement and Concrete Composites, Vol. 24, pp. 305-316.

9. Freyburg, E. and Berminger, A.M. (2003), “Field Experiences in Concrete Deterioration by Thaumasite Formation:Possibilities and Problems in Thaumasite Analysis”, Cementand Concrete Composites, Vol. 25, No. 8, pp. 1105-1110.

10.

10. Gollop, R.S. and Taylor, H.F.W. (1995), “Microstructural and Microanalytical Studies of Sulfate Attack, III, Sulfate-Resisting Portland-Cement: Reaction with Sodium and Magnesium Sulfate Solution”, Cement and Concrete Research,Vol. 25, No. 7, pp. 1581-1590.

11.

11. Kropp, J. and Hilsdorf, H.K. (1995), “Performance Criteria for Concrete Durability”, RILEM REPORT 12, E & FNSPON.

12.

12. Lee, S.T. and Hooton, R.D. (2005), “Prediction of Performance on Cement Matrix Exposed to Sulfate Media”, Annual Report, University of Toronto.

13.

13. Lee, S.T., Kim, D.G. and Jung, H.S. (2009), “Sulfate Attack of Cement Matrix Containing Inorganic Alkali-free Accelerator”,KSCE Journal of Civil Engineering, Vol. 13, No. 1, pp. 49-54.

14.

14. Romer,M., Holzer, L. and Pfiffner, M. (2002), “Swiss Tunnel Structures; Concrete Damage by Formation of Thaumasite”,1st international concrete on thaumasite in cementitious materials.

15.

15. Tumidajski, P.J., Chan, G.W. and Philipose, K.E. (1995),“An Effective Diffusivity for Sulfate Transportation into Concrete”, Cement and Concrete Research, Vol. 25, No. 6,pp. 1159-1163.

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Article Contents

Vol.11 No.4

Characterization of deterioration of concrete lining in tunnel structures

Abstract

Reference

(사)한국터널지하공간학회