| 摘要 |
PURPOSE: A girder structure of a tunnel and a construction method thereof are provided to reduce the amount of shotcrete and a shotcrete working time since an arch structure is installed in a tunnel, and a left girder, a right girder, and a crown connecting girder are included. CONSTITUTION: A girder structure of a tunnel comprises a left girder(100), a right girder(200), a crown connecting girder(300), and a height control unit(400). The left girder forms the left are of the girder structure. The left girder comprises a coupling member. The right girder forms the right area of the girder structure. The crown connecting girder fills the gap between the crowns of the left and right girders. Both ends of the crown connecting girder are respectively coupled to the crowns of the left and right girders. The crown connecting girder comprises a left girder coupling member. The connecting girder coupling member and the left girder coupling member are coupled by an uneven structure. The height control unit is installed on the lower ends of the left and right girders.
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