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(사)한국터널지하공간학회

ISSN : 2233-8292

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Vol.19 No.3

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

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2017, v.19 no.3, pp.551-565
https://doi.org/10.9711/KTAJ.2017.19.3.551






& (2017). Numerical study on structural reinforced effects of concrete lining by spray-applied waterproofing membrane. (사)한국터널지하공간학회, 19(3), 551-565, https://doi.org/10.9711/KTAJ.2017.19.3.551

Abstract

A spray-applied waterproofing membrane which consists of polymers has a relatively higher constructability and adhesion than the conventional sheet-type waterproofing materials. And 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 more higher flexural strength and fracturing energy than the single-layer concrete lining.

keywords
차수용 박층 멤브레인, 접촉 거동, 수치해석, 터널, 보강, Spray-applied waterproofing membrane, Contact behavior, Numerical analysis, Tunnel, Reinforcement

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