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A Study on Field Change Case of Tunnel Concrete Lining Designs Using GLI(Ground Lining Interaction) Model  

Chang, Seok-Bue ((주)유신코퍼레이션 터널부)
Lee, Soo-Yul (수원대학교 토목공학과 대학원)
Suh, Young-Ho (현대건설)
Yun, Ki-Hang (현대건설)
Park, Yeon-Jun (수원대학교 토목공학과)
Kim, Su-Man (수원대학교 토목공학과)
Publication Information
Tunnel and Underground Space / v.20, no.1, 2010 , pp. 58-64 More about this Journal
Abstract
GLI model was verified to consider the interaction between a ground and a tunnel lining and to rationally reduce the ground load acting on the secondary lining(concrete lining) of a tunnel. In this study, the economy and the construction condition of tunnel concrete linings designed by a conventional frame model at Lot O of OO line were highly enhanced through a field design change using GLI model. For a few safe considerations, not only about 50% saving of reinforcing steel could reduce the material cost but also the wide space between bars could make it easy to pour concrete mix without voids. There was large saving effect of reinforcing steel for poor ground conditions because Terzaghi's load used in the conventional frame model produces too much high loads for those conditions.
Keywords
GLI model; Ground-lining interaction; Concrete lining reinforcement; Steel reinforcement concrete; Poor ground tunnel; Load transfer;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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