A study on the relationship of the influencing factors on carbonation in tunnel concrete linings

Gyu-Phil Lee

doi:10.9711/KTAJ.2024.26.5.507

All Issue

2024 Vol.26, Issue 5 Preview Page Next Page

Research Paper

A study on the relationship of the influencing factors on carbonation in tunnel concrete linings 터널 콘크리트 라이닝 탄산화 영향인자 관계성 분석

30 September 2024. pp. 507-518

PDF XML

Abstract

In general, the tunnel portal is constructed with reinforced concrete. And the carbonation of concrete can cause reinforcement corrosion, causing function failure and tunnel destruction. To establish management system such as tunnel inspection and rehabilitation, distance between tunnel portal and coast, service life and traffic were selected as carbonation influencing factors and correlation analysis with carbonation depth for each influencing factor was performed.

Keywords

Concrete lining

Salt injury

Carbonation

Regression analysis

Pearson correlation coefficients

일반적으로 터널 입출구부는 철근콘크리트 라이닝으로 시공되며 콘크리트의 탄산화는 철근 부식을 발생시켜 터널구조물의 기능상실 및 파괴를 유발할 수 있다. 따라서 본 연구에서는 터널구조물 점검, 보수 ‧ 보강 등 유지관리를 위한 체계 정립을 위하여, 탄산화 영향인자로 터널 입 ‧ 출구부와 해안과의 거리, 공용연수 및 교통량을 선정하였으며 각 영향인자별 탄산화깊이와의 상관관계 분석을 수행하였다.

키워드

콘크리트 라이닝

염해

탄산화

회귀분석

피어슨 상관계수

References

Han, S.H., Park, W.S. (2008), "Analysis of carbonation for harbor concrete structure", Journal of Korean Society of Coastal and Ocean Engineers, Vol. 20, No. 6, pp. 575-582.

Japan Concrete Institute Home page, https://www.jci-net.or.jp/j/concrete/kiso/Durability.html (April 28, 2024).

Kim, D.H., Lim, N.G., Lee, S.B. (2002), "The study on salt injury and carbonation of reinforced-concrete", Journal of the Korea Institute of Building Construction, Vol. 2, No. 2, pp. 165-172.

10.5345/JKIC.2002.2.2.165

Kim, W. (1995), "Major causes for deterioration in concrete structure", Magazine of the Korea Concrete Institute, Vol. 7, No. 6, pp. 14-22.

Lee, G.P. (2023), "Correlation analysis of traffic and crack in concrete lining", Journal of Korean Tunnelling and Underground Space Association, Vol. 25, No. 5, pp. 345-355.

10.9711/KTAJ.2023.25.5.345

Lee, J.S., Ahn, K.H., Kim, D.G., Park, J.J. (2010), "Distribution properties of airborne chlorides in Korea", Journal of the Korea Concrete Institute, Vol. 22, No. 6, pp. 769-776.

10.4334/JKCI.2010.22.6.769

Lee, J.S., An, G.H. (2012), "Penetration properties of airborne chlorides on concrete exposed in marine environment", Journal of the Korea Concrete Institute, Vol. 24, No. 5, pp. 553-558.

10.4334/JKCI.2012.24.5.553

Traffic Monitoring System Home page, https://www.road.re.kr (July 20, 2024).

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 : 26
No :5
Pages :507-518
Received Date : 2024-08-02
Revised Date : 2024-08-19
Accepted Date : 2024-08-20
DOI :https://doi.org/10.9711/KTAJ.2024.26.5.507

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

All Issue