WO2008127014A1 - A floating type of underwater bridge - Google Patents

A floating type of underwater bridge Download PDF

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Publication number
WO2008127014A1
WO2008127014A1 PCT/KR2008/002013 KR2008002013W WO2008127014A1 WO 2008127014 A1 WO2008127014 A1 WO 2008127014A1 KR 2008002013 W KR2008002013 W KR 2008002013W WO 2008127014 A1 WO2008127014 A1 WO 2008127014A1
Authority
WO
WIPO (PCT)
Prior art keywords
fiber
underwater
core body
underwater bridge
reinforced composites
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2008/002013
Other languages
French (fr)
Inventor
Jung Il Park
Sung Pil Chang
Hyun Moo Koh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seoul National University Industry Foundation
Original Assignee
Seoul National University Industry Foundation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seoul National University Industry Foundation filed Critical Seoul National University Industry Foundation
Publication of WO2008127014A1 publication Critical patent/WO2008127014A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0258—Retaining or protecting walls characterised by constructional features
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/14—Floating bridges, e.g. pontoon bridges
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/063—Tunnels submerged into, or built in, open water
    • E02D29/067—Floating tunnels; Submerged bridge-like tunnels, i.e. tunnels supported by piers or the like above the water-bed

Definitions

  • the present invention relates to a floating type of underwater bridge which is constructed to have flexibility and high rigidity such that a core body can be protected even when an underwater object collides with the underwater bridge.
  • a floating type of underwater bridge is relatively inexpensive compared to an underground tunnel or immersed tunnel for connecting a land and a land or a land and an island which are separated by the sea.
  • an underwater object such as a ship or a submarine is likely to collide with the underwater bridge.
  • FIG. 1 is a side view of a floating type of conventional underwater bridge.
  • FIG. 2 is a cross-sectional view of the conventional underwater bridge of FIG. 1.
  • the underwater bridge 1 includes a main body 2 having a tube structure and a cable 3 supporting the main body 2 such that the middle portion of the main body 2 can be positioned underwater.
  • the main body 2 has a tube structure such that people or vehicles can pass therethrough. Both ends of the main body 2 are positioned on the lands, respectively, and the middle portion thereof is positioned underwater.
  • the main body 2 is fixed by the cable 3, which is fixed to the sea bottom, such that the buoyancy applied to the main body 2 can be offset while the cable 3 is tensioned.
  • An advantage of the present invention is that it provides a floating type of underwater bridge which is flexible and has such a high rigidity as not to be destroyed even when an underwater object collides with the underwater bridge.
  • a floating type of underwater bridge comprises a core body having a hollow portion through which people or vehicles can pass; a plurality of fiber-reinforced composites fixed to the circumference of the core body; and a cable installed in such a manner that the core body surrounded by the fiber-reinforced composites is positioned underwater.
  • the plurality of fiber-reinforced composites surround the circumference of the core body and respectively have a plurality of cells formed in the longitudinal direction thereof, the cells being arranged along the circumference of the fiber- reinforced composites.
  • concrete is injected into the cells of the fiber-reinforced composite positioned in the outermost portion among the plurality of fiber-reinforced composites surrounding the circumference of the core body, and is then cured.
  • the concrete radiation shielding concrete may be used.
  • the cable has a tension cable positioned therein and a protective cable surrounding the circumference of the tension cable.
  • the underwater bridge of the presenting invention the core body through which people or vehicles pass is protected by using the fiber-reinforced composites which have excellent durability against salination and high rigidity. Therefore, the underwater bridge has excellent durability against an external impact and salination. In particular, since the fiber-reinforced composites have the cells arranged along the circumference thereof, the underwater bridge has an effect of buffering an impact.
  • radiation shielding concrete is injected into the cells of the fiber-reinforced composite positioned in the outermost portion and is then cured. Therefore, it is possible to protect people from a radiation accident occurring outside.
  • the cells formed in the fiber-reinforced composites surrounding the core body generate buoyancy in the sea, thereby increasing the buoyancy of the underwater bridge.
  • FIG. 1 is a side view of a floating type of conventional underwater bridge.
  • FIG. 2 is a cross-sectional view of the conventional underwater bridge of FIG. 1.
  • FIG. 3 is a cross-sectional view of a floating type of underwater bridge according to an embodiment of the invention.
  • FIG. 4 is a side cross-sectional view of the underwater bridge of FIG. 3, showing a state where gravity blocks are removed from the underwater bridge. Best Mode for Carrying Out the Invention
  • FIG. 3 is a cross-sectional view of a floating type of underwater bridge according to an embodiment of the invention.
  • FIG. 4 is a side cross-sectional view of the underwater bridge of FIG. 3, showing a state where gravity blocks are removed from the underwater bridge.
  • the underwater bridge 100 includes a core body 110 having a hollow portion formed therein, the hollow portion having such a size that people or vehicles can pass therethrough; fiber-reinforced composites 121 and 123 which surround the circumference of the core body 110 and have a plurality of cells 125 formed therein in the longitudinal direction, a filler 130 filled in the cells 125 formed in the fiber-reinforced composite 123; and a cable 140 which is connected to the sea bottom such that the core body 110 surrounded by the fiber-reinforced composites 121 and 123 is positioned underwater.
  • the core body 110 has such a cylindrical structure that people or vehicles can pass through the inside thereof, and the fiber-reinforced composites 121 and 123 surround the circumference of the core body 110.
  • the cells 125 formed in the longitudinal direction are arranged along the circumference of the fiber-reinforced composites 121 and 123.
  • the fiber-reinforced composites 121 and 123 which are FRP (fiber-reinforced polymer) composites, have excellent durability against salination. Further, the fiber-reinforced composites have high toughness and rigidity. Further, since the fiber-reinforced composites 121 and 123 have the cells 125 formed in the longitudinal direction thereof, a buffer effect against an external impact can be attained, and buoyancy essential for the underwater bridge 100 can be also provided.
  • the first fiber-reinforced composite 121 surrounding the core body 110 is fixed to the circumference of the core body 110 by fastening the fiber- reinforced composite 121 to the core body 110 using bolts and nuts or applying an epoxy adhesive. Then, the circumference of the first fiber-reinforced composite 121 surrounding the core body 110 is surrounded by the second fiber-reinforced composite 123. If necessary, one or more fiber-reinforced composites may be additionally provided to surround the core body 110.
  • the cable 140 for supporting the core body 110 surrounded by the fiber-reinforced composites 121 and 123 includes a tension cable 141 positioned inside the cable 140 and a protective cable 143 surrounding the circumference of the tension cable 141.
  • Gravity blocks which are positioned inside the core body 110 shown in FIG. 3, serve to increase the weight of the core body 110 such that the core body 110 can be submerged in the sea so as to be positioned underwater. As shown in FIG. 4, the gravity blocks are removed from the core body 110, after the construction of the underwater bridge 100 is completed.
  • the core body is protected by using the fiber- reinforced composites which have excellent durability against salination and high rigidity, which makes it possible to provide a floating type of underwater bridge which has excellent durability against external impact and salination.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

Provided is a floating type of underwater bridge which is constructed to have flexibility and high rigidity such that a core body can be protected even when an underwater object collides with the underwater bridge. The underwater bridge includes a core body having a hollow portion through which people or vehicles can pass; a plurality of fiber-reinforced composites fixed to the circumference of the core body; and a cable installed in such a manner that the core body surrounded by the fiber- reinforced composites is positioned underwater.

Description

Description A FLOATING TYPE OF UNDERWATER BRIDGE
Technical Field
[1] The present invention relates to a floating type of underwater bridge which is constructed to have flexibility and high rigidity such that a core body can be protected even when an underwater object collides with the underwater bridge. Background Art
[2] In terms of construction cost, a floating type of underwater bridge is relatively inexpensive compared to an underground tunnel or immersed tunnel for connecting a land and a land or a land and an island which are separated by the sea. However, since the underwater bridge is positioned underwater in a state where it is exposed to water, an underwater object such as a ship or a submarine is likely to collide with the underwater bridge.
[3] FIG. 1 is a side view of a floating type of conventional underwater bridge. FIG. 2 is a cross-sectional view of the conventional underwater bridge of FIG. 1.
[4] As shown in FIGS. 1 and 2, the underwater bridge 1 includes a main body 2 having a tube structure and a cable 3 supporting the main body 2 such that the middle portion of the main body 2 can be positioned underwater.
[5] The main body 2 has a tube structure such that people or vehicles can pass therethrough. Both ends of the main body 2 are positioned on the lands, respectively, and the middle portion thereof is positioned underwater. The main body 2 is fixed by the cable 3, which is fixed to the sea bottom, such that the buoyancy applied to the main body 2 can be offset while the cable 3 is tensioned.
[6] Since the underwater bridge 1 is constructed in such a state where the main body 2 is positioned underwater, an underwater object 5 is likely to collide with the underwater bridge 5. If the underwater object collides with the main body of the underwater bridge, and thus the main body is destroyed, the destruction of the main body progresses rapidly due to the water pressure. As a result, a serious accident may occur.
[7] To overcome such a disadvantage of the conventional underwater bridge, studies are being actively conducted. However, there is no incidence which has innovatively overcome such a disadvantage. Disclosure of Invention
Technical Problem
[8] An advantage of the present invention is that it provides a floating type of underwater bridge which is flexible and has such a high rigidity as not to be destroyed even when an underwater object collides with the underwater bridge. Technical Solution
[9] According to an aspect of the invention, a floating type of underwater bridge comprises a core body having a hollow portion through which people or vehicles can pass; a plurality of fiber-reinforced composites fixed to the circumference of the core body; and a cable installed in such a manner that the core body surrounded by the fiber-reinforced composites is positioned underwater.
[10] Preferably, the plurality of fiber-reinforced composites surround the circumference of the core body and respectively have a plurality of cells formed in the longitudinal direction thereof, the cells being arranged along the circumference of the fiber- reinforced composites.
[11] Preferably, concrete is injected into the cells of the fiber-reinforced composite positioned in the outermost portion among the plurality of fiber-reinforced composites surrounding the circumference of the core body, and is then cured. As for the concrete, radiation shielding concrete may be used.
[12] Preferably, the cable has a tension cable positioned therein and a protective cable surrounding the circumference of the tension cable.
Advantageous Effects
[13] According to the underwater bridge of the presenting invention, the core body through which people or vehicles pass is protected by using the fiber-reinforced composites which have excellent durability against salination and high rigidity. Therefore, the underwater bridge has excellent durability against an external impact and salination. In particular, since the fiber-reinforced composites have the cells arranged along the circumference thereof, the underwater bridge has an effect of buffering an impact.
[14] Further, radiation shielding concrete is injected into the cells of the fiber-reinforced composite positioned in the outermost portion and is then cured. Therefore, it is possible to protect people from a radiation accident occurring outside.
[15] Further, the cells formed in the fiber-reinforced composites surrounding the core body generate buoyancy in the sea, thereby increasing the buoyancy of the underwater bridge.
Brief Description of the Drawings
[16] FIG. 1 is a side view of a floating type of conventional underwater bridge.
[17] FIG. 2 is a cross-sectional view of the conventional underwater bridge of FIG. 1.
[18] FIG. 3 is a cross-sectional view of a floating type of underwater bridge according to an embodiment of the invention.
[19] FIG. 4 is a side cross-sectional view of the underwater bridge of FIG. 3, showing a state where gravity blocks are removed from the underwater bridge. Best Mode for Carrying Out the Invention
[20] Hereinafter, a floating type of underwater bridge according to an embodiment of the invention will be described with reference to the accompanying drawings.
[21] FIG. 3 is a cross-sectional view of a floating type of underwater bridge according to an embodiment of the invention. FIG. 4 is a side cross-sectional view of the underwater bridge of FIG. 3, showing a state where gravity blocks are removed from the underwater bridge.
[22] As shown in FIGS. 3 and 4, the underwater bridge 100 includes a core body 110 having a hollow portion formed therein, the hollow portion having such a size that people or vehicles can pass therethrough; fiber-reinforced composites 121 and 123 which surround the circumference of the core body 110 and have a plurality of cells 125 formed therein in the longitudinal direction, a filler 130 filled in the cells 125 formed in the fiber-reinforced composite 123; and a cable 140 which is connected to the sea bottom such that the core body 110 surrounded by the fiber-reinforced composites 121 and 123 is positioned underwater.
[23] Now, the underwater bridge will be described more specifically.
[24] The core body 110 has such a cylindrical structure that people or vehicles can pass through the inside thereof, and the fiber-reinforced composites 121 and 123 surround the circumference of the core body 110. The cells 125 formed in the longitudinal direction are arranged along the circumference of the fiber-reinforced composites 121 and 123. The fiber-reinforced composites 121 and 123, which are FRP (fiber-reinforced polymer) composites, have excellent durability against salination. Further, the fiber-reinforced composites have high toughness and rigidity. Further, since the fiber-reinforced composites 121 and 123 have the cells 125 formed in the longitudinal direction thereof, a buffer effect against an external impact can be attained, and buoyancy essential for the underwater bridge 100 can be also provided.
[25] As shown in FIG. 4, the first fiber-reinforced composite 121 surrounding the core body 110 is fixed to the circumference of the core body 110 by fastening the fiber- reinforced composite 121 to the core body 110 using bolts and nuts or applying an epoxy adhesive. Then, the circumference of the first fiber-reinforced composite 121 surrounding the core body 110 is surrounded by the second fiber-reinforced composite 123. If necessary, one or more fiber-reinforced composites may be additionally provided to surround the core body 110.
[26] As such, after the core body 110 is surrounded by the plurality of fiber-reinforced composites 121 and 123, radiation shielding concrete serving as the filler 130 is injected into the cells 125 of the fiber-reinforced composite 123 positioned in the outermost position and is then cured. [27] Meanwhile, the core body 110 surrounded by the fiber-reinforced composites 121 and 123 constructed in such a manner is supported using the cable 140 such that the core body 110 is positioned underwater. Both ends of the cable 140 are fixed to the sea bottom such that the cable 140 is constructed in a loop shape. Then, the core body 110 surrounded by the fiber-reinforced composites 121 and 123 is pushed into the loop through a continuous extrusion method. Further, another method may be used, in which one end of the cable is fixed to the sea bottom, and the other end thereof is fixed to the core body 100 surrounded by the fiber-reinforced composites 121 and 123 such that the core body 110 is positioned underwater.
[28] The cable 140 for supporting the core body 110 surrounded by the fiber-reinforced composites 121 and 123 includes a tension cable 141 positioned inside the cable 140 and a protective cable 143 surrounding the circumference of the tension cable 141.
[29] Gravity blocks, which are positioned inside the core body 110 shown in FIG. 3, serve to increase the weight of the core body 110 such that the core body 110 can be submerged in the sea so as to be positioned underwater. As shown in FIG. 4, the gravity blocks are removed from the core body 110, after the construction of the underwater bridge 100 is completed. Industrial Applicability
[30] According to the present invention, the core body is protected by using the fiber- reinforced composites which have excellent durability against salination and high rigidity, which makes it possible to provide a floating type of underwater bridge which has excellent durability against external impact and salination.
[31] Further, as the radiation shielding concrete is injected, it is possible to protect people inside the underwater bridge, even when a radiation accident occurs outside.

Claims

Claims
[1] A floating type of underwater bridge comprising: a core body having a hollow portion through which people or vehicles can pass; fiber-reinforced composites fixed to the circumference of the core body; and a cable installed in such a manner that the core body surrounded by the fiber- reinforced composites is positioned underwater.
[2] The underwater bridge according to claim 1, wherein a plurality of the fiber- reinforced composites surround the circumference of the core body and respectively have a plurality of cells formed in the longitudinal direction thereof, the cells being arranged along the circumference of the fiber-reinforced composites.
[3] The underwater bridge according to claim 2, wherein concrete is injected into the cells of the fiber-reinforced composite positioned in the outermost portion among the plurality of fiber-reinforced composites surrounding the circumference of the core body, and is then cured.
[4] The underwater bridge according to claim 3, wherein the concrete is radiation shielding concrete.
[5] The underwater bridge according to any one of claims 1 to 4, wherein the cable has a tension cable positioned therein and a protective cable surrounding the circumference of the tension cable.
PCT/KR2008/002013 2007-04-13 2008-04-10 A floating type of underwater bridge Ceased WO2008127014A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070036613A KR100797796B1 (en) 2007-04-13 2007-04-13 Floating underwater bridge
KR10-2007-0036613 2007-04-13

Publications (1)

Publication Number Publication Date
WO2008127014A1 true WO2008127014A1 (en) 2008-10-23

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WO (1) WO2008127014A1 (en)

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CN109518718A (en) * 2019-01-19 2019-03-26 安徽工程大学 Combined type early warning type retaining wall
WO2020021219A1 (en) * 2018-07-26 2020-01-30 Bndean Omer Abdulkadir Transport system using renewable energy

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KR101284241B1 (en) 2011-09-07 2013-07-09 한국해양과학기술원 Lateral stiffness reinforced submerged floationg tunnel
KR20160017202A (en) 2014-07-31 2016-02-16 한국철도기술연구원 Connecting Structure of Submerged Floating Tunnel Unit
KR101673543B1 (en) 2014-07-31 2016-11-08 한국철도기술연구원 Connecting Structure of Submerged Floating Tunnel Unit
KR20160017204A (en) 2014-07-31 2016-02-16 한국철도기술연구원 Connecting Structure of Submerged Floating Tunnel Unit
KR20160017264A (en) 2014-08-01 2016-02-16 한국철도기술연구원 Connecting Structure of Submerged Floating Tunnel Unit
KR101647820B1 (en) 2014-08-01 2016-08-12 한국철도기술연구원 Connecting Structure of Submerged Floating Tunnel Unit
KR101584327B1 (en) 2014-11-28 2016-01-15 한국철도기술연구원 Vibration test apparatus for underwater zone tunnel
KR20160065338A (en) 2014-11-28 2016-06-09 한국철도기술연구원 Emergency off system using airbag for underwater zone tunnel
KR20160065400A (en) 2014-11-28 2016-06-09 한국철도기술연구원 Connecting Structure of Underwater Tunnel Unit
KR101676842B1 (en) 2014-12-02 2016-11-18 한국철도기술연구원 Emergency off system using underwater zone tunnel
KR20160066611A (en) 2014-12-02 2016-06-13 한국철도기술연구원 Connecting Structure of Underwater Tunnel Unit
KR102049771B1 (en) 2017-09-01 2019-11-29 한국철도기술연구원 Floating bridge
KR102590270B1 (en) 2022-07-28 2023-10-20 한국철도기술연구원 Transport system using submerged floating tunnels

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657435A (en) * 1985-12-27 1987-04-14 Chang Ming Y Underwater tunnel construction
JPH0748849A (en) * 1993-08-05 1995-02-21 Mitsui Constr Co Ltd Underwater tunnel
US6450734B1 (en) * 1997-05-09 2002-09-17 Michael W. Kuja Transportation underwater tunnel system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2423854A1 (en) 1974-05-16 1975-12-04 Josef Boessner Cable-curve-suspended concrete marine tunnel - with suspended weights loading tube to produce heaviness approaching buoyancy thrust

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657435A (en) * 1985-12-27 1987-04-14 Chang Ming Y Underwater tunnel construction
JPH0748849A (en) * 1993-08-05 1995-02-21 Mitsui Constr Co Ltd Underwater tunnel
US6450734B1 (en) * 1997-05-09 2002-09-17 Michael W. Kuja Transportation underwater tunnel system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020021219A1 (en) * 2018-07-26 2020-01-30 Bndean Omer Abdulkadir Transport system using renewable energy
CN109518718A (en) * 2019-01-19 2019-03-26 安徽工程大学 Combined type early warning type retaining wall
CN109518718B (en) * 2019-01-19 2023-09-22 安徽工程大学 Combined early warning type retaining wall

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