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http://dx.doi.org/10.9711/KTAJ.2017.19.3.551

Numerical study on structural reinforced effects of concrete lining by spray-applied waterproofing membrane  

Lee, Chulho (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)
Choi, Soon-Wook (Geotechnical Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Kang, Tae-Ho (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)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.19, no.3, 2017 , pp. 551-565 More about this Journal
Abstract
A spray-applied waterproofing membrane which consists of polymers has a relatively higher constructability and adhesion than the conventional sheet-type waterproofing materials. Additionally, the spray-applied waterproofing membrane generally shows a waterproofing ability as a composite structure with shotcrete or concrete lining. Because its purpose is waterproofing at the structure, structural effects were not well reported than waterproofing abilities. In this study, structural effects of the membrane-attached concrete lining were evaluated using 3-point bending test by the numerical method. From the analysis, a load-displacement behavior of the concrete lining and fracturing energy after yielding were compared with various conditions. Consequently, concrete lining with spray-applied waterproofing membrane shows higher flexural strength and fracturing energy than the single-layer concrete lining.
Keywords
Spray-applied waterproofing membrane; Contact behavior; Numerical analysis; Tunnel; Reinforcement;
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Times Cited By KSCI : 3  (Citation Analysis)
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