TUNNEL STRUCTURE, TUNNEL USING THE SAME AND TUNNEL CONSTRUCTION METHOD

摘要

The present invention relates to a tunnel structure, a tunnel using the same and a tunnel construction method, in which the tunnel structure has adopted flexibility to facilitate installation according to the topographical features of an installation ground surface and does not require a separate mold as filling the tunnel structure with a filler is carried out under water. A first aspect of the present invention is a tunnel structure comprising a wall with a flexible double wall design, a bottom part having a flexible structural design, and restoring members built in the wall and the bottom part, respectively, to provide a restoring force for flexibility. A second aspect of the present invention is a tunnel comprising steel bars arranged within the wall and the bottom part, and a filler filled therein. A third aspect of the present invention is a tunnel construction method, comprising: (1) coupling a hollow wall and a bottom part at the construction site on a dry dock to build a 1st tunnel structure; (2) immersing the 1st, water-passage tunnel structure in water and then mounting and fitting into a trench pre-formed at the bottom of the water; (3) overlaying deposits on the 1st tunnel structure and packing the deposits down; (4) draining water in the 1st tunnel structure to outside; (5) forming a 1st tunnel by charging the wall in the thickness direction and the interior of the bottom part of the 1st tunnel structure with a filler; (6) immersing a 2nd, water-passage tunnel structure into water and positioning in line with the 1st tunnel; (7) adhering the 1st tunnel and the 2nd tunnel structure and then joining a boundary region therebetween; (8) overlaying deposits on the 2nd tunnel structure and packing the deposits down; (9) draining water in the 2nd tunnel structure to outside; (10) forming a 2nd tunnel by charging the wall in the thickness direction and the interior of the bottom part of the 2nd tunnel structure with a filler; and (11) continuously connecting other tunnel structures to the 2nd tunnel in a consecutive manner to form a tunnel in an in-line form.