Browse > Article
http://dx.doi.org/10.9711/KTAJ.2015.17.6.665

Numerical study on contact behavior of TSL (Thin Spray-on Liner)  

Lee, Chulho (Geotechnical Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Chang, Soo-Ho (Geotechnical Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Lee, Kicheol (Dept. of Civil and Environment Engineering, Incheon National University)
Kim, Dongwook (Dept. of Civil and Environment Engineering, Incheon National University)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.17, no.6, 2015 , pp. 665-674 More about this Journal
Abstract
A TSL (Thin Spray-on Liner) which consists of polymers has a higher initial strength, faster construction time and higher waterproofing performance than the conventional cementitious shotcrete. Main supporting mechanism of TSL is the adhesion and tensile strength which is distinct from the conventional shotcrete. Even though highly in demand due to its outstanding characteristics, TSL is not yet well-known support material. In this study, to evaluate contact behavior of TSL, numerical analysis was performed with comparing result from laboratory tests. From the analysis, cohesive behavior at the contact surface between TSL and rock can be evaluated by using combination of cohesive and the damage model. In addition, results show that the cohesive stiffness controled slope between force and displacement, the fracture energy controled level of force at the contact.
Keywords
Thin spray-on liner; Contact behavior; numerical analysis; cohesive model;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Abaqus (2010), Analysis user's manual, Ver. 6.10, Providence (RI, USA): Dassault Systemes Simulia Corp.
2 Ahn, T. (2011), Thermal and Mechanical Studies of Thin Spray On Liner (TSL) for Concrete Tunnel Linings, PhD Thesis, The University of Western Ontario, London, Ontario, Canada.
3 ASTM (2010), Standard Test Method for Tensile Properties of Plastics, D638-10.
4 Camanho, P.P., Davila, C.G., Moura, M.F. (2003), "Numerical simulation of mixed-mode progressive delamination in composite materials", J of Colloid Interface Sci, Vol. 249, Issue 2002, pp. 62-77.
5 Chang, S., Lee, G-P., Han, J-T., Park, Y-T. (2015), "Development of a powder-type thin spray-on liner and its performance evaluation at different curing ages", Tunnel & Undeerground Space, Vol. 25, No. 3, pp. 293-302 (in Korean).   DOI
6 Clements, M.J. (2002), "The future of fibre reinforced sprayed concrete", Proc. the 4th Int. Symp. on Sprayed Concrete, Norwegian Concrete Association, pp. 73-81.
7 EFNARC (2008), Specification and Guidelines on Thin Spray-on Liners for Mining and Tunnelling.
8 Hyun, C.H., Lee, J.H., Lee, H., Kim, D.H., Hahn J. H. (2013), "Analysis of cracking characteristics with indenter geometry using cohesive zone model", Transactions of the Korea Society of Mechanical Engineers - A, Vol. 32, Issue 12, pp. 1453-1463.
9 Michael A. Minnicino, Michael H. Santare (2012), "Modeling the progressive damage of the microdroplet test using contact surfaces with cohesive behavior", Composites Science and Technology, Vol. 72, Issue 16, pp. 2024-2031.   DOI
10 Povin, Y., Stacey, D., Hadjigeorgiou, J., Yilmaz, H. (2004), Part 1: Thin Spray-on Liners(TSLs)-A Quick Reference Guide, Surface Support in Mining, Y. Povin, D. Stacey and J. Hadjigeorgiou (eds), Australian Centre for Geomechanics, pp. 3-43.
11 Roberts, R. (2001), Time to look below the surface of membranes, Australian Mining Monthly, August, pp. 62-63.
12 Saydam, S. (2008), Ground Control - Use of Liner Support in Mining, Presentation file, MINE4300 - GEOTECHNICAL ENGINEERING, School of Mining Engineering, University of New South Wales.
13 Shin, H., Shin, D., Bae, G., Kim, D. (2009), "Numerical study on failure mechanism of tunnel shotcrete lining", Tunnel & Undeerground Space, Vol. 10, No. 7, pp. 167-177 (in Korean).
14 Stefan, I., Tomas, G., Lucie, H., Zoran, A. (2008), "The use of finite element analysis to model bone-implant contact with basal implants, Oral Surgery", Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, Vol. 106, Issue 1, July 2008, pp. 39-48.   DOI
15 Tannant, D.D. (2001), Thin Spray-on Liners for Underground Rock Support, Proceedings of the 17th International Mining Congress and Exhibition of Turkey - IMCET 2001, pp. 57-73.