SEMI OPEN CUT TYPE TUNNEL CONSTRUCTION METHOD AT LOW OVERBURDEN AND ARCH TYPE STRUCTURE FOR TUNNEL CONSTRUCTION

A semi-open cut type tunnel construction method at low overburden and an arch-shaped structure for tunnel construction are provided to shorten the construction period and reduce the construction cost by excavating a tunnel by using an excavation construction method suitable for the lower ground of t...

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Bibliographic Details
Main Authors LEE, SUNG JIN, LEE, SANG DUK, NA, SANG MIN
Format Patent
LanguageEnglish
Published 01.10.2007
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Summary:A semi-open cut type tunnel construction method at low overburden and an arch-shaped structure for tunnel construction are provided to shorten the construction period and reduce the construction cost by excavating a tunnel by using an excavation construction method suitable for the lower ground of the arch-shaped structure against vibration. A semi-open cut type tunnel construction method comprises the steps of forming the bottom surface of cut ground by cutting the original ground by a predetermined depth. A previously manufactured arch-shaped structure is installed at the bottom surface of the cut ground. A refilling layer is formed by refilling soil in the upper portion of the arch-shaped structure. A tunnel is formed by excavating the ground below the arch-shaped structure.
Bibliography:Application Number: KR20050079922