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Numerical study on contact behavior of TSL (Thin Spray-on Liner)
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 Title & Authors
Numerical study on contact behavior of TSL (Thin Spray-on Liner)
Lee, Chulho; Chang, Soo-Ho; Lee, Kicheol; Kim, Dongwook;
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 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;
 Language
Korean
 Cited by
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