• Magazine of the Korea Concrete Institute
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• v.21 no.2
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• pp.42-49
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• 2009

• Magazine of the Korea Concrete Institute
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• v.16 no.1 s.78
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• pp.74-79
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• 2004

• Journal of Korean Tunnelling and Underground Space Association
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• v.6 no.1
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• pp.3-16
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• 2004

A finite element method is used for the force analysis of semicircular arch shaped corrugated steel plate lining. The assessment of stability and behavior for several conditions are executed from the analysis of soil-structure interaction in accordance with CHBDC (Canadian Highway Bridge Design Code, 2000). One fortieth scaled model tests were conducted on the semicircular arch lining to verify the FEM analysis results under the earth-load conditions.

• Magazine of the Korea Concrete Institute
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• v.16 no.4 s.81
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• pp.34-44
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• 2004

• Magazine of the Korea Concrete Institute
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• v.6 no.6
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• pp.66-75
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• 1994

• Magazine of the Korea Concrete Institute
• /
• v.26 no.6
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• pp.51-54
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• 2014

• Magazine of the Korea Concrete Institute
• /
• v.19 no.1
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• pp.12-14
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• 2007

• Magazine of the Korea Concrete Institute
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• v.12 no.5
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• pp.56-60
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• 2000

• Journal of Korean Tunnelling and Underground Space Association
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• v.14 no.3
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• pp.247-260
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• 2012

In order to reduce the amount of steel reinforcements in TBM tunnel segments, the use of Steel Fiber Reinforced Concrete(SFRC) is being tried. The steel fibers with higher aspect ratio than that used in tunnel shotcrete are preferred to compensate the deficiency in tensile strength of the segments. In this study, the tensile properties of SFRC with aspect ratio of steel fibers equal to 80 were evaluated through flexural test and Double Punch Test. In the results of flexural test, flexural strengths of the SFRC were increased about 30%~150% thanks to bond of steel fibers used to concrete and could be properly predicted by the equation proposed by Oh(2008). There was a great difference in the estimated direct tensile strengths of the SFRC by the equations presented in ACI and RILEM. It was found that the Double Punch Test could be suitable methodology to estimate the direct tensile strength presented in RILEM of the SFRC.

• Journal of the Korean GEO-environmental Society
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• v.24 no.12
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• pp.13-18
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• 2023

Cast-in-place concrete lining is commonly used in tunnel lining, but cast-in-place concrete lining has problems with construction and quality control. Precast segment lining is being used to solve these problems. In general, precast segment lining is known to have improved durability and easy maintenance such as rehabilitation of structures. This study compared the durability of 22 tunnel linings constructed with precast segments or cast-in-place reinforced concrete.