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Location Jeosan-ri, Gangnae-myeon, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do ~ Geumnam-myeon, Sejong-si, Korea
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Description
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Total L = 9,964m
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3 Tunnels L = 3,635m
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Technical Issues
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Design of auxiliary reinforcement methods for the shallow depth tunneling in weathered soil layer
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Portal design to minimize the adverse environmental effects
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