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http://dx.doi.org/10.12814/jkgss.2017.16.4.151

Analysis of Reinforcement Effect of TSL (Thin Spray-on Liner) as Supports of Tunnel by Numerical Analysis  

Lee, Kicheol (Dept of Civil and Environmental Engineering)
Kim, Dongwook (Dept of Civil and Environmental Engineering)
Chang, Soo-Ho (Geotechnical Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Choi, Soon-Wook (Geotechnical Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Lee, Chulho (Geotechnical Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of the Korean Geosynthetics Society / v.16, no.4, 2017 , pp. 151-161 More about this Journal
Abstract
A TSL (Thin Spray-on Liner) has a higher initial strength and faster construction time than conventional cementitious shotcrete. Because of its high adhesion and tensile strength, the TSL reinforced concrete show a characteristic like composite materials. In this study, to consider an application to the conventional design method, ASD (allowable stress design), numerical study was used. In the numerical analysis, material and contact properties were adopt from previous studies. Then a thickness of concrete in the tunnel was evaluated with the TSL reinforced case by the ASD concept. In other words, bending compressive stress, bending tensile stress and shearing force of the concrete were considered to determine a thickness of concrete lining by the given boundary conditions. From the numerical analysis, there was no tendency to show by the ASD because the ASD is based on the elastic theory while the TSL typically contributes to reinforcement after yielding.
Keywords
TSL; Membrane; Support; Tunnel; Numerical analysis;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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