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http://dx.doi.org/10.9711/KTAJ.2019.21.2.257

A numerical study on the waterproofing effect of Fan Grouting under tunnel excavation  

Moon, Hoon-Ki (Geotechnical Engineering and Tunnel Dept., DASAN Consultants)
Park, Gyung-Wook (Unique Geotechnical Engineering and Construction)
Lee, Hyeyoon (Geotechnical Engineering and Tunnel Dept., DASAN Consultants)
Kwon, Seok-Hun (ILJIN Construction)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.21, no.2, 2019 , pp. 257-266 More about this Journal
Abstract
Ground water generated under tunnel excavation has a major impact on tunnel construction and stability. Thus, effective waterproof grouting is needed to reduce the inflow of groundwater. Most tunnel designs are applying the Pre Grouting. However there are no propriety analysis for grouting material and waterproof effect. In this study, numerical analysis was performed in order to investigate the effect of waterproof with decrease of coefficient of permeability of the grouting area based on the case of grouting construction.
Keywords
Fan Grouting; Tunnel excavation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Cheon, B.S., Lee, Y.J., Ko, G.S., Jung, H.C., Choi, S.H. (1995), "Chemical grouting of tunnel underpassing the Han river", Proceedings of the Korean Society of Civil Engineers Conference, Seoul, Vol. 2, pp. 377-380.
2 Do, I.W. (2014), "Performance research on cutoff grouting around the tunnel", M.S. Thesis, Graduate School of Kyungpook National University, pp. 1-49.
3 Joo, E.J., Kim, Y.K., Shin, J.H., Kwon, O.Y. (2010), "Numerical study for the optimum grouting design of subsea tunnels", Journal of Korean Tunnelling and Underground Space Association, Vol. 12, No. 5, pp. 349-358.
4 Seo, K.W., Baek, K.H., Kim, W.K., Jun, S.K., Kim, S.J. (2010), "Analysis of the grouting effectiveness in tunnel excavation", Proceedings of the Korean Society of Civil Engineers 36th Annual Conference, Incheon, pp. 1720-1723.
5 You, K.H. (2011), "Analysis on the effect of strength improvement and water barrier by tunnel grouting reinforcement", Journal of Korean Tunnelling and Underground Space Association, Vol. 13, No. 4, pp. 291-304.   DOI
6 You, K.H., Jie, H.K., Seo, K.W., Kim, S.J., You, D.W. (2012), "A study on the correlation between the rock mass permeability before and after grouting & injection volume and the parameters of Q system in a jointed rock mass tunnel", Journal of Korean Tunnelling and Underground Space Association, Vol. 14, No. 6, pp. 617-635.   DOI