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Title |
Performance Evaluation of Organic and Inorganic Fiber Reinforced Concrete in Tunnel Lining Structure
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Keywords |
건조수축 ; 하이브리드 ; 하중-변위 ; 폴리아미드 섬유 ; 터널 라이닝 콘크리트 ; Dry shrinkage ; Hybrid ; Load-displacement ; Polyamide fiber ; Tunnel lining concrete |
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Abstract |
The tunnel structure is widely used for transportation in the mountain area. To reduce the duration of construction and thus the expense, a tunnel excavation is often performed simultaneously with a tunnel lining in in-situ. However, cracking of the tunnel lining may occur arising from the vibrating impact in the excavation process. The present study concerns the role of steel fiber and nylon fibers in tunnel lining concrete to reduce the vibrating impact. As a result it was found that both the nylon fiber and steel fiber improved the durability and physical properties of concrete.
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