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http://dx.doi.org/10.9711/KTAJ.2014.16.2.117

Evaluation of waterproof and durability of hydrophilic waterstop  

Choi, Woo-Yong (Konkuk University, Dept. of Civil and Environmental System Engineering)
Lee, Hyeun-Pil (Bon E&C, Deputy)
Jun, Gy-Chan (Korea Engineering & Construction)
Lee, Seok-Won (Konkuk University, Dept. of Civil and Environmental System Engineering)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.16, no.2, 2014 , pp. 117-124 More about this Journal
Abstract
The interest in the use of shield TBM (Tunnel Boring Machine) on the tunnel excavation has been increased rapidly in Korea. The shield TBM tunnel is generally designed as non-drainage tunnel. Consequently, if water leakage through the segment joints happens, big problems on the usage and stability of tunnel can be occurred. In this study, the variation of waterproof capacity of hydrophilic waterstop by the construction error and excessive displacement of segment was studied firstly. Secondly, the decrease of durability of hydrophilic waterstop by the sulphate and chloride contained in the groundwater and seawater was investigated. The results showed that if the angle discordance at the segment joints is beyond the 2 degree, the proper waterproof capacity of hydrophilic waterstop can not be guaranteed. In addition, if the hydrophilic rubber waterstop is exposed to the sulphate for a while, the proper durability of hydrophilic waterstop can not be expected.
Keywords
Hydrophilic waterstop; Waterproof; Durability; Sulphate; Chloride;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Kim, S.H., Kim, W.K., Lee, H.Y. (2013), "Effect of segment thickness during shield TBM tunnelling in case study", J. of Korean Tunnelling and Underground Space Association, Vol. 15, No. 3, pp. 311-320.   과학기술학회마을   DOI   ScienceOn
2 Ahn, S.I. (2005), "Analyses of ground-water by impacts of tunneling", Master dissertation, Kyungpook National University, Daegu, Korea.
3 Hyun, K.C., Min, S.Y., Moon, J.B., Jeong, G.H., Lee, I.M. (2012), "Risk management applicable to shield TBM tunnel: I. Risk factor analysis", J. of Korean Tunnelling and Underground Space Association, Vol. 14, No. 6, pp. 667-681.   과학기술학회마을   DOI   ScienceOn
4 Kim, Y.I., Hencher, S.R., Yoon, Y.H., Cho, S.K. (2002), "Determination of the construction method for Young Dong tunnel by risk assessment", J. of Korean Tunnelling and Underground Space Association, Vol. 4, No. 2, pp. 13-25.
5 Lee, S.W., Jeoung, J.H., Hwang, J.H. (2009), "Evaluation of hydrophilic waterstop for shield TBM tunnel under high water pressure", Proc. of Korean Geo-Environmental Conference, Seoul, Korea, pp. 389-392.
6 Shin, Y.S. (2008), "Study on hydraulic tunnel-ground interaction", Ph.D dissertation, Konkuk University, Seoul, Korea.