Browse > Article
http://dx.doi.org/10.9711/KTAJ.2016.18.1.109

Friction behaviour of inflatable structure system to protect rapidly flooding damages in subsea tunnel  

Yoo, Kwang-San (Yookwang Construction Co., Ltd.)
Lee, Ji-Hyun (Dept of Civil Engineering, Hoseo University)
Kim, Yeon-Deok (Dept of Civil Engineering, Hoseo University)
Kim, Sang-Hwan (Dept of Civil Engineering, Hoseo University)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.18, no.1, 2016 , pp. 109-117 More about this Journal
Abstract
This paper is focused on the determination of friction parameter which is a predominant factor in the design of inflatable structure system. This inflatable structure system is very valuably used to protect passively and rapidly the possibilities of tunnel damages by flooding threats and unusual leakage to be occurred during and after underground infrastructure construction. In particular, this system should be necessary in subsea tunnel. This study presents the experimental results obtained from the relative friction characteristics tests of the fabric materials that constitute the inflatable structure. In order to evaluate the relative friction behaviour of the inflatable structure system, friction tests and scaled model tunnel friction tests are carried out. The friction tests are carried out to determine the friction coefficient for different surface conditions between tunnel and inflatable structure. These friction coefficients are then evaluated and compared with the result obtained from the model tunnel friction tests. Interaction behaviours between tunnel and system are also reviewed and described in this study. The results clearly show that the friction coefficients derived from scaled model slippage tests are about 12% lower than values obtained from the friction tests. In addition, this study will be necessary to verify the real friction behaviour with prototype tests before applying in practice.
Keywords
Inflatable structure system; Subsea tunnel; Friction test; Scaled model Slippage test;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Barbero, E.J., Sosa, E.M., Martinez, X., Gutierrez, J.M. (2013), "Reliability design methodology for confined high pressure inflatable structures", Engineering Structures.   DOI
2 Kim, N.Y., "Subsea tunnel research trends for the maximization of the national transportation network hub", Journal of the Korean Geoenvironmental Society, pp. 38-42.
3 Lee, C.R. (2014), "A fundamental study on inflater structure to protect the tunnel damage due to flooding threats", Master's Thesis.
4 Martinez, X., Davalos, J., Barbero, E., Sosa, E., Huebsch, W., Means, K., Banta, L., Thompson, G. (2012), "Inflatable plug for threat mitigation in transportation tunnels", Society for the Advancement of Material and Process Engineering 2012 Conference, Baltimore, MD.
5 Park, S.H., An, S.J., Han, S.J., Yoo, Y.H. (2015), "Simulation study of smoke spread prevention using air curtain system in rescue station platform of undersea tunnel", Journal of Korean Tunnelling and Underground Space Association, pp. 257-266.
6 Park, U.S., Shin, H.S., Hong, E.S. (2007), "Trends of Investigation and Design for Subsea Tunnels", Journal of Korean Society of civil engineers, pp. 29-41.
7 Shin, H.S. (2009), "Technology aspects of subsea tunnels", Korean Geo-Environmental Conference, pp. 147-157.
8 Shin, H.S., Park, U.S. (2006), "Design trend analysis over the case of a foreign subsea tunnel", Korean Society for Rock Mechnics Conference, pp. 184-193.
9 Sill, J.J., Means, K.H., Sosa, E.M., Barbero, E.J. (2013), "Friction and leakage characteristics of confrined, reduced-scale inflatable structures", VI International Conference on Textile Composites and Inflatable Structures.
10 Sosa, E.M., Thompson, G.J., Barbero E.J. (2014), "Testing of full-scale inflatable plug for flood mitigation in tunnels", VI International Conference on Textile Composites and Inflatable Structures.
11 Sosa, E.M., Thompson, G.J., Barbero, E.J., Ghosh, S., Peil, K.L. (2014), "Friction characteristics of confined inflatable structures", Friction-a springerpen journal Vol. 2, No. 4, pp. 365-390.   DOI
12 Yoo, K.S., Lee, J.H., Kim, Y.D., Kim, S.H., "Model testing of leakage effect due to multi-cell inflater of rapid protection system in subsea tunnel", Journal of Korean Tunnelling and Underground Space Association, pp. 295-303.   DOI