WO2013156948A1 - Device and method for construction of a barrier between bodies of water - Google Patents
Device and method for construction of a barrier between bodies of water Download PDFInfo
- Publication number
- WO2013156948A1 WO2013156948A1 PCT/IB2013/053049 IB2013053049W WO2013156948A1 WO 2013156948 A1 WO2013156948 A1 WO 2013156948A1 IB 2013053049 W IB2013053049 W IB 2013053049W WO 2013156948 A1 WO2013156948 A1 WO 2013156948A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- central section
- water
- central
- support leg
- section
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000004888 barrier function Effects 0.000 title claims abstract description 18
- 238000010276 construction Methods 0.000 title claims abstract description 15
- 230000036961 partial effect Effects 0.000 claims abstract description 12
- 238000004873 anchoring Methods 0.000 claims description 9
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
- 239000004567 concrete Substances 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- 238000007667 floating Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000005304 joining Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 210000002105 tongue Anatomy 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/08—Tide or wave power plants
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Definitions
- the present invention relates to a device and method for construction of a whole or partial barrier between a first and a second body of water. Background of the invention
- WO-2005/017349 discloses a turbine for a tidal power station where the energy is utilised in both tidal directions.
- WO-201 1/025387 discloses a turbine of this kind further developed for harnessing both wave power and tidal power.
- Norwegian patent 320988 discloses a device and method for interconnecting and fixing prefabricated concrete structures for such power stations.
- US-2009/1 10484 describes a breakwater barrier system comprising a breakwater wall on a first surface of a floating concrete structure, a substantially watertight wave barrier wall, located at a distance from the breakwater wall on the second surface of the concrete structure, and an anchor for securing the concrete structure at a predetermined location. Summary of the invention
- a general object of the invention is to provide an improved device and method for construction of a whole or partial barrier between a first and a second body of water.
- Fig. 1 is a perspective view of an installation during building, where some central sections are already mounted while a tugboat is on the way with a new central section.
- Fig. 2 illustrates a device for construction of a whole or partial barrier between a first and a second body of water.
- Fig. 3 illustrates a central section with transport unit, ready for connection to already embedded central sections.
- Fig. 4 illustrates a support leg in a horizontal position, thereby enabling it to be towed from building dock to assembly site.
- Fig. 5 illustrates further details of a central section and a corresponding transport unit.
- Fig. 1 is a perspective and schematic view of an installation during building where some central sections are already mounted while a tugboat is on the way with a new central section.
- Fig. 1 therefore illustrates steps carried out in the construction of a whole or partial barrier between a first and a second body of water.
- the bodies of water consist in a sound between land areas, and the barrier is established between the land areas, across the sound or over parts of the sound.
- the method comprises firstly arranging a central section 13 on the surface of the water.
- the central section is floating, and it is towed in prefabricated condition by a tugboat from a dock or the like to the construction site concerned.
- the method further comprises providing support legs to support the central section relative to a fixed base, in this case the seabed.
- the method further comprises interconnecting the central section 13 with an additional number of central sections at the central sections' end walls, in order to form a continuous chain of central sections.
- turbines may be provided in through-flow openings in the central sections. The barrier can thereby represent an installation for harnessing tidal energy, since the turbines are driven by water which is naturally moved between the first and the second body of water as a result of tidal forces. Further aspects of the method and the device will now be described.
- Fig. 2 is a schematic view of a device for construction of a whole or partial barrier between a first and a second body of water. The figure also illustrates aspects of a method for construction of a whole or partial barrier between a first and a second body of water.
- Fig. 2 illustrates a central section 13 floating on the water surface. On the left side of the central section 13 a support leg is illustrated already manoeuvred into position and attached to the central element 13. The right side of the figure is a schematic view of a situation where a corresponding support leg 22 is manoeuvred into position on the opposite side of the central section 13 and affixed thereto.
- the method for construction of a whole or partial barrier between a first and a second body of water therefore firstly comprises arranging the central section 13 on the water surface.
- At least one pair of support legs are further provided to support the central section relative to a fixed base, illustrated as the seabed by the hatched area at the bottom of fig. 2.
- the method further comprises leading a number of projections, where one projection is provided on each support leg, diagonally upwards and inwards in respective openings in a lower area of the central section 13. The projections are then fixed to these openings.
- each support leg can be varied and controlled by filling a plurality of cavities or chambers in the support leg with air or water. These may comprise an upper chamber in the part of the support leg which is shown submerged, and a lower chamber 24 in the part of the support leg which protrudes slightly up from the surface in the illustrated example.
- upper chamber refers to the chamber which is located in the highest position after the support leg is mounted, i.e. closest to the central section.
- the upper chamber may, for example, be water-filled, while the lower chamber 24 is air-filled. This results in the position illustrated in fig. 2, where the support leg's upper end, where the projections are mounted, is positioned slightly below the surface, while the support leg's lower end, which comprises an anchoring device, protrudes slightly up from the surface.
- Fig. 3 illustrates a central section with transport unit, ready for connecting to already embedded central sections.
- central section already mounted to one another, or alternatively a central section of a greater length.
- the central section or central sections have already been provided with a number of support legs, which together form a tilted surface which leads flowing water upwards and inwards towards any through-flow openings in the central section(s), where a turbine or turbines may be mounted for harnessing the energy in flowing water.
- Fig. 4 illustrates a support leg 22 in the horizontal position in which it is transported from building dock to assembly site.
- the lower part of the support leg (where "upper” herein refers to a higher position after the support leg is mounted, i.e. closest to the central section, while on the other hand “lower” refers to a lower position after the support leg is mounted, i.e. in the opposite end of the central section) comprises an anchoring device, illustrated as an example in the form of a suction anchor 26.
- the suction anchor has an open underside 27 which, by means of filling water in the additional, lower chamber 25 in the support leg 22, is gradually pushed down into the base, i.e. the seabed. Via a pipe/hose connection (not shown) to a vacuum pump, the internal pressure in the suction anchor may then be lowered. The external water pressure combined with tightening of the winch line will further press the lower end of the support leg 22 down into the seabed.
- the support legs may further comprise one or more cast-in tubes 25, which can thus act as guide tubes for drilling holes for inserting strong safety bolts in solid rock.
- the support legs can then be securely grouted with pumped concrete through the tube or tubes 25.
- the support leg 22 may be provided at its left end with a towing fixture 18 mounted on the projections (or the protruding tongues) 19.
- the projections 19 may, for example, be expediently cut out of solid steel plates.
- a number of transverse reinforcing bars 20 on each projection provide good power transfer and a stiff connection between central section 13 and its cut-out, and the support legs, after concrete has been pumped in round the reinforcing bars 20.
- the support leg 22 may have an internal, upper chamber comprised of the area between a surface 21 where the projection is provided and a partition wall 23 in the support leg 22.
- the support leg may also comprise a lower chamber 24 between partition wall 23 and suction anchor 26. Both these chambers advantageously have a pipe/hose connection up to pump station 28, for example arranged on the central section 13, thereby enabling an operator to here adjust the buoyancy on and along the support leg concerned.
- Fig. 5 is a perspective view of a central section 13 and a transport unit 17 ready for insertion in the central section's horizontal openings 1 1. At 14 openings are shown through which turbines can be lowered after assembly is completed and the concrete in the central sections has set.
- the transport unit 17 which is expediently welded together from steel plates, comprises three separate and closed chambers, contained in the transport unit's main part 17, together with the two protruding parts 15, 16. From each chamber pipes are run up to a non-illustrated control station at the top where an operator can pump water or air into or out of each chamber and thereby adjust both buoyancy and tilt of the transport unit.
- the central section 13 may be provided with protruding, cast-in steel beams 12.
- These may expediently have milled grooves in end members on strong channel beams, which in their opposite, cast-in member have holes or cutouts for a number of reinforcement rods which distribute the forces well into the centre of the concrete.
- the said grooves may be horizontal and designed so as to fit into opposite protruding teeth from corresponding steel beams on the opposite central section.
- a possible advantage of this is that in the few minutes when the tide turns, the fitters will be able to position the new central section at the correct height and lateral direction, whereupon, by means of welding and/or screw connection or in some other way, they can join the sections together so that the weight of the new section can be transferred to the old when the transport unit has to be released. Further connection is carried out by imbedding protruding reinforcing bars on both central sections and on the support feet when they are in position.
- a device for construction of a whole or partial barrier between a first and a second body of water comprises, as indicated in the above, a central section 13 and at least one pair of support legs 22 arranged to support the central section relative to a fixed base.
- the central section 13 is provided in a lower area with a number of openings, or cut-outs/cavities, and each support leg 22 is provided at an upper end with a number of projections adapted for attachment to respective openings in the central section.
- This is illustrated, for example, in fig. 2.
- the openings in the central section may expediently comprise diagonal cut-outs, or cavities, each with a cross section, for example circular, decreasing obliquely upwards towards the interior of the central section, and where the support leg's projection fits into its respective cut-out.
- the device may further comprise an additional number of central sections 13, where the central sections are interconnected at their end walls in order to form a continuous chain of central sections.
- Support legs may be attached to all the central sections in the described fashion for anchoring to the base/the seabed.
- each support leg is provided at a lower end with an anchoring device for attachment to the fixed base.
- the central section may comprise a first and a second end face, facing the first and second body of water respectively, and each support leg may comprise a surface extending along a whole length of a respective end face for the central section.
- each support leg's surface may extend along the whole height of the support leg. In other embodiments the surface may be broken by openings where water can pass. As indicated earlier, each support leg may be arranged to have variable controllable buoyancy. This can be provided by a plurality of cavities in the support leg which are arranged to be filled with (or emptied of) air or water.
- the central section also has variable, controllable buoyancy. This can be provided either by at least one cavity in the central section which is arranged to be filled with air or water, or by the use of a separate transport unit, illustrated by 17 in figures 3 and 5, arranged to be connected to the central section, where the transport unit comprises cavities which can be filled with air or water.
- the device may particularly expediently form part of an installation for harnessing tidal energy.
- the central section comprises a first and a second end face, facing the first and second body of water respectively, and in addition at least one through-flow opening between the first and second end face.
- a turbine may furthermore be provided which is driven by water flowing through the through-flow opening.
- the central section may further comprise vertical passages 14 between an upper portion of the central section and a centre portion of the two through-flow openings provided, where the vertical passage forms a mounting channel for the turbine.
- the turbine may be arranged to be horizontally reversible in the central section, in order thereby to exploit both tide directions.
- the invention may be particularly useful for anchoring and assembly of large prefabricated concrete sections at greater depths than those for which previously known methods are suited, such as the method described in Norwegian patent
- the invention may have special advantages during mounting and anchoring in loose seabed.
- the support legs employed in the invention form an incline which leads waves and tidal water up and into any intake or passage in central sections containing one or more turbines. By means of these inclines tidal water in deeper locations may also be forced up and into the turbine(s).
- the central sections are advantageously cast in reinforced concrete. They can be mass produced in dock and floated out of the building dock, preferably at high water.
- the central sections may be equipped with air-filled cavities and/or supplemented with a special transport unit 17 which provides sufficient buoyancy to permit the sections to be lifted free of the dock floor and subsequently towed in a partly submerged position to the assembly site.
- the buoyancy is adjusted to the correct height before the new concrete section is locked to the previously mounted section. Water is then admitted to the transport unit 17, so that the weight of the new section is transferred to the old section and its foundations. The transport unit 17 can then be towed back to the production site for reuse on the next section.
- the support legs may be cast in reinforced concrete in the building dock and floated into position. They may be equipped with cavities which provide buoyancy for towing in a surface position. By means of a winch and pumping water in a controlled manner into the support legs' various buoyancy chambers, arranged at different positions along the length of the leg, the support legs can be manoeuvred into position.
- the support legs may advantageously be produced in different lengths and designs depending on the depth of the sea and bottom conditions where they are to be installed.
- support legs may be provided.
- each support leg is provided in the form of a suction anchor.
- the lower part may have a box-shaped cross section without a bottom.
- the support legs are tilted downwards by their own weight so that a lower sharp edge of the said box-shaped part penetrates a distance down into the loose ground.
- Sea water can then be sucked out of the said chamber via a pipe/hose connection.
- the support leg may be held more securely in place by means of a winch and steel cord while the inner end is winched up.
- the water is then sucked out from the support leg's outer/lower chamber via a non-illustrated pipe/hose connection up to a vacuum pump.
- the water pressure outside the chamber and the winch will thereby cooperate by pressing the support leg's outer/lower end further down into the seabed.
- the support legs At their opposite (i.e. upper) end the support legs have one or more protruding tongues or projections which fit into opposite openings in the central section. Both support leg and central section here may have protruding reinforcement bars with openings around which are filled with concrete when the leg concerned is in position. After the concrete has set, strong, rigid connections are obtained between support leg and central section.
- this section can take over the load from the next new central concrete section.
- the bridge connection can be built step by step in a rational manner out into the sea without the need for heavy crane vessels or any noticeable need for divers.
- the final stage is the mounting of turbine(s) and other machinery, independently of the concrete work.
- the support feet are produced in different lengths to suit the depth of the sea where they are to be mounted. Thus an approximately equal and optimal tilt is achieved for the support legs independently of the depth of the sea.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Revetment (AREA)
- Foundations (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020147032175A KR20150003339A (en) | 2012-04-18 | 2013-04-17 | Device and method for construction of a barrier between bodies of water |
EP13726294.5A EP2839081A1 (en) | 2012-04-18 | 2013-04-17 | Device and method for construction of a barrier between bodies of water |
CN201380020379.6A CN104411889A (en) | 2012-04-18 | 2013-04-17 | Device and method for construction of a barrier between bodies of water |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20120454A NO334729B1 (en) | 2012-04-18 | 2012-04-18 | Apparatus and method for constructing a barrier between water masses |
NO20120454 | 2012-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013156948A1 true WO2013156948A1 (en) | 2013-10-24 |
Family
ID=48539329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2013/053049 WO2013156948A1 (en) | 2012-04-18 | 2013-04-17 | Device and method for construction of a barrier between bodies of water |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2839081A1 (en) |
KR (1) | KR20150003339A (en) |
CN (1) | CN104411889A (en) |
CL (1) | CL2014002783A1 (en) |
NO (1) | NO334729B1 (en) |
WO (1) | WO2013156948A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3618327A (en) * | 1968-11-15 | 1971-11-09 | Morrison Knudsen Co | Caisson structure and pier construction methods |
GB2233018A (en) * | 1989-05-18 | 1991-01-02 | Earl & Wright Ltd | Arrangement for locating an offshore jacket on a template |
FR2788288A1 (en) * | 1999-01-07 | 2000-07-13 | Lacroix Alain Lavergne | Underwater structure forming barrier for coastal development comprises caisson with series of wave-damping chambers mounted on anchoring piles |
WO2005017349A1 (en) | 2003-08-14 | 2005-02-24 | Tidetec As | Energy generator powered by tidal currents |
NO320988B1 (en) | 2003-08-14 | 2006-02-20 | Tidetec As | Device for concrete construction in the sea, and method for installation of the same |
US20090110484A1 (en) | 2007-10-24 | 2009-04-30 | Fillingame O Wayne | Storm surge breaker system, barrier system and method of constructing same |
WO2011025387A1 (en) | 2009-08-31 | 2011-03-03 | Tidetec As | Apparatus for extracting tidal and wave energy |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61106810A (en) * | 1984-10-29 | 1986-05-24 | Mitsui Eng & Shipbuild Co Ltd | Composite wave dissipating system |
US7632041B2 (en) * | 2007-04-25 | 2009-12-15 | Single Buoy Moorings, Inc. | Wave power generator systems |
-
2012
- 2012-04-18 NO NO20120454A patent/NO334729B1/en not_active IP Right Cessation
-
2013
- 2013-04-17 WO PCT/IB2013/053049 patent/WO2013156948A1/en active Application Filing
- 2013-04-17 CN CN201380020379.6A patent/CN104411889A/en active Pending
- 2013-04-17 EP EP13726294.5A patent/EP2839081A1/en not_active Withdrawn
- 2013-04-17 KR KR1020147032175A patent/KR20150003339A/en not_active Application Discontinuation
-
2014
- 2014-10-16 CL CL2014002783A patent/CL2014002783A1/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3618327A (en) * | 1968-11-15 | 1971-11-09 | Morrison Knudsen Co | Caisson structure and pier construction methods |
GB2233018A (en) * | 1989-05-18 | 1991-01-02 | Earl & Wright Ltd | Arrangement for locating an offshore jacket on a template |
FR2788288A1 (en) * | 1999-01-07 | 2000-07-13 | Lacroix Alain Lavergne | Underwater structure forming barrier for coastal development comprises caisson with series of wave-damping chambers mounted on anchoring piles |
WO2005017349A1 (en) | 2003-08-14 | 2005-02-24 | Tidetec As | Energy generator powered by tidal currents |
NO320988B1 (en) | 2003-08-14 | 2006-02-20 | Tidetec As | Device for concrete construction in the sea, and method for installation of the same |
US20090110484A1 (en) | 2007-10-24 | 2009-04-30 | Fillingame O Wayne | Storm surge breaker system, barrier system and method of constructing same |
WO2011025387A1 (en) | 2009-08-31 | 2011-03-03 | Tidetec As | Apparatus for extracting tidal and wave energy |
Also Published As
Publication number | Publication date |
---|---|
CL2014002783A1 (en) | 2015-05-08 |
CN104411889A (en) | 2015-03-11 |
NO334729B1 (en) | 2014-05-19 |
KR20150003339A (en) | 2015-01-08 |
EP2839081A1 (en) | 2015-02-25 |
NO20120454A1 (en) | 2013-10-21 |
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