Civil engineering civil fiber tube structure and civil engineering civil fiber tube structure connection construction method

1 . A civil engineering civil fiber tube structure comprising:

a tube body part made of a flexible civil fiber material, initially having a rectangular shape, and is rolled in a drum shape such that a lower coupling portion is formed at a lower center portion by coupling both ends in a longitudinal direction of the tube body part; and

one or more injection taps disposed on a top in the longitudinal direction of the tube body part when the lower coupling portion is disposed at a lower center,

wherein both open sides of the tube body part are closed by sewing threads, whereby coupling portions crossing the longitudinal direction of the tube body part are formed, and

wherein first connection coupling holes are formed with predetermined gaps in the longitudinal direction of the coupling portion,

wherein gap grooves are disposed with preset gaps in a longitudinal direction at an end of the coupling portion.

2 . The civil engineering civil fiber tube structure of claim 1 , wherein the lower coupling portion is formed such that bending margin portions are formed by bending preset regions, which are in contact with each other of both ends of the tube body part when the tube body part is bent in a drum shape from an initial state, to overlap each other, and

the bending margin portions are coupled by sewing threads in the longitudinal direction of the tube structure.

3 . The civil engineering civil fiber tube structure of claim 1 , wherein the tube body part is formed by coupling ends of adjacent unit tube members of a plurality of rectangular unit tube members in the longitudinal direction.

4 . The civil engineering civil fiber tube structure of claim 3 , wherein the lower coupling portion is formed by forming bending margin portions protruding outward with the same length in the longitudinal direction of the tube body part at partial regions of both ends of the tube body part and then coupling the bending margin portions with a sewing thread in an overlap state.

5 . The civil engineering civil fiber tube structure of claim 1 , further comprising a pair of assistant coupling members disposed around an outer surface at both sides of the tube body part in a direction crossing the longitudinal direction of the tube body part,

wherein second connection coupling holes are formed with predetermined gaps in a longitudinal direction of the assistant coupling member.

6 . The civil engineering civil fiber tube structure of claim 1 , further comprising a reinforcing band member coupled to the tube body part by a sewing thread in the longitudinal direction of the tube body part.

7 . The civil engineering civil fiber tube structure of claim 1 , further comprising a transverse reinforcing member disposed in the tube body part across an inside of the tube body part in a direction crossing the longitudinal direction of the tube body part with both ends coupled to an inner side of the tube body part when the tube body part is formed in a drum shape.

8 . The civil engineering civil fiber tube structure of claim 7 , wherein the transverse reinforcing member comprises a bridge disposed in the tube body part across the inside of the tube body part, and through-holes are disposed with predetermined gaps on the bridge.

9 . The civil engineering civil fiber tube structure of claim 1 , further comprising:

an assistant body part being open on both sides to be able to cover an outer side of the body part when the body part of the tube structure expands, and has a drum shape when expanding; and

an assistant tube member including a plurality of third connection coupling holes disposed around the assistant body part at both sides of the assistant body part and an assistant injection tap provided so that dredged soil can be injected into the assistant body part.

10 . A civil engineering civil fiber tube structure comprising:

a tube body part made of a flexible civil fiber material, initially having a rectangular shape, and is rolled in a drum shape such that a lower coupling portion is formed at a lower center portion by coupling both ends in a longitudinal direction of the tube body part;

one or more injection taps disposed on a top in the longitudinal direction of the tube body part when the lower coupling portion is disposed at a lower center; and

a transverse reinforcing member disposed in the tube body part across an inside of the tube body part in a direction crossing the longitudinal direction of the tube body part with both ends coupled to an inner side of the tube body part when the tube body part is formed in a drum shape,

wherein the transverse reinforcing member comprises a bridge disposed in the tube body part across the inside of the tube body part, and through-holes are disposed with predetermined gaps on the bridge,

wherein both open sides of the tube body part are closed by sewing threads, whereby coupling portions crossing the longitudinal direction of the tube body part are formed,

wherein first connection coupling holes are formed with predetermined gaps in the longitudinal direction of the coupling portion.

11 . A civil engineering civil fiber tube structure comprising:

a tube body part made of a flexible civil fiber material, initially having a rectangular shape, and is rolled in a drum shape such that a lower coupling portion is formed at a lower center portion by coupling both ends in a longitudinal direction of the tube body part; and

one or more injection taps disposed on a top in the longitudinal direction of the tube body part when the lower coupling portion is disposed at a lower center,

wherein both open sides of the tube body part are closed by sewing threads, whereby coupling portions crossing the longitudinal direction of the tube body part are formed,

wherein first connection coupling holes are formed with predetermined gaps in the longitudinal direction of the coupling portion,

wherein an end reinforcement unit having gap grooves formed with preset gaps in a longitudinal direction is installed in a pressed type at an end of the coupling portion.

12 . The civil engineering civil fiber tube structure of claim 11 , wherein the end reinforcement unit includes:

an end reinforcement clip made of a metallic material and having a fitting portion formed at a first side to be pressed and fixed while covering an end of the coupling portion; and

protrusions protruding with preset gaps at a second side of the end reinforcement clip,

wherein gap grooves are formed between the protrusions.