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http://dx.doi.org/10.12652/Ksce.2011.31.1C.053

Damage Analysis of Nearby Structures with the Consideration of Tunnel Construction Conditions in Sandy and Clayey Ground  

Son, Moorak (대구대학교 토목공학과)
Yun, Jongcheol (대구대학교 토목공학과)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.31, no.1C, 2011 , pp. 53-63 More about this Journal
Abstract
This paper investigates the effects of tunnelling-induced ground movements on nearby structures, considering soil-structure interactions of different ground (loose sand, dense sand, soft clay, stiff clay) and construction conditions (ground loss). The response of four-story block structures, which are subjected to tunnelling-induced ground movements, has been investigated in different ground and construction conditions (ground loss) using numerical analysis. The structures for numerical analysis has been modelled using Discrete Element Method (DEM) to have real cracks when the shear and tensile stress exceed the maximum shear and tensile strength. The response of four-story block structures has been investigated with a ground movement magnitude and compared in terms of ground and construction conditions (ground loss) considering the magnitude of deformations and cracks in structures. In addition, the damage levels, which are possibly induced in structures, has been provided in terms of ground and construction conditions (ground loss) using the state of strain damage estimation criterion (Son and Cording, 2005). The results of this study will provide a background for better understandings for controlling and minimizing building damage on nearby structures due to tunnelling-induced ground movements.
Keywords
tunnel excavation; ground condition; construction condition (ground loss); building response; damage estimation; soil-structure interaction;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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