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2016
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Invention
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Vertical shaft module and vertical shaft construction method using same. The present invention pr... |
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Invention
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Reinforcing structure for large corrugated steel plate and tunnel using same. Disclosed is a rein... |
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2008
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Invention
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Reinforcing apparatus for end part of underground-structure using corrugated multi plate and rein... |
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2007
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Invention
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Corrugated steel sheet having rational jointing part for improvement of compressive strength, fle... |
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2006
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Invention
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Prefabricated bridge using corrugated steel plate and method for constructing the same. A prefabr... |
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Invention
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Structure for reinforcing a corrugated steel plate. A structure for reinforcing a corrugated stee... |
