EP2315880B1 - Self closing flood barrier and method for protecting a hinterland using same - Google Patents
Self closing flood barrier and method for protecting a hinterland using same Download PDFInfo
- Publication number
- EP2315880B1 EP2315880B1 EP09746799.7A EP09746799A EP2315880B1 EP 2315880 B1 EP2315880 B1 EP 2315880B1 EP 09746799 A EP09746799 A EP 09746799A EP 2315880 B1 EP2315880 B1 EP 2315880B1
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- EP
- European Patent Office
- Prior art keywords
- chamber
- flood barrier
- water
- hinterland
- side wall
- 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.)
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- 230000004888 barrier function Effects 0.000 title claims description 73
- 238000000034 method Methods 0.000 title claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 57
- 230000000903 blocking effect Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 8
- 238000006424 Flood reaction Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000000284 resting effect Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
- E02B3/102—Permanently installed raisable dykes
- E02B3/104—Permanently installed raisable dykes with self-activating means
-
- 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
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/205—Barrages controlled by the variations of the water level; automatically functioning barrages
-
- 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
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/26—Vertical-lift gates
-
- 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
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/50—Floating gates
Definitions
- the invention relates tc a self closing flood barrier and a method for protecting a hinterland against floods by means of such a self closing flood barrier.
- Self closing flood barriers are known in which a dam wall is forced upwards out of a chamber whenever the chamber fills up with water.
- a flood barrier may be installed in for example a dike at a river side.
- the flood barrier automatically rises in the event of a flood, thereby protecting the hinterland.
- moveable flood barriers also referred to as moveable dams, offer the advantage that they constitute a dam only then when it is really necessary. In a normal situation, the dam is underground and invisible for the environment.
- a moveable dam may comprise a vertical retaining wall which at its lowest side provided with a buoyant body housed in the chamber.
- the buoyant body forces the retaining wall out of the chamber through an opening at the top of the chamber.
- the buoyant body may also function as a blocking element in order to limit the upward movement of the retaining wall. In that case the buoyant body will be thicker than the upper opening of the chamber and is thereby prohibited to leave the chamber.
- Publication EP 1950352 A2 discloses a flood barrier having a rectangular support block at one side of the chamber mounted to one of the chamber walls.
- a buoyant body comprises a slightly inclined, nearly vertical, side surface which will result in the dam wall moving to the hinterland side of the flood barrier in case of flooding.
- the buoyant body further comprises an extension at the bottom which abuts to the bottom of the rectangular support block in case of flooding. Due to the specific structure of the flood barrier, the retaining wall and the buoyant body will act as a lever wherein the water pressing against the water side of the retaining wall will try to tilt the floatable part.
- the maximum pressure between the floatable part and the chamber occurs near the top of the chamber at the hinterland side, and between the support block and the buoyant body at the water side.
- a contact surface is very small.
- the flood barrier will be unstable in case of variable water pressure at the top of the retaining wall due to waves.
- the contact surfaces are subject to wear due to high and variable pressures.
- GB-A-2.369.387 discloses a movable flood barrier according to the preamble of claim 1.
- the known movable flood barrier comprises a buoyant barrier member which is raised by allowing it to float on the flooding liquid.
- the barrier member is located in a floatation chamber which is filled by the rising flood liquid when the liquid reached a predetermined danger level.
- This barrier is a symmetrically constructed barrier in which the closure between the buoyant barrier member and the chamber is determined by the upward force of the flooding liquid on the buoyant barrier member.
- the construction therefore requires a relatively large Buoyant member providing upward force with a large building depth below the surface as the floatation force has to be provided by a floating volume below the surface when the buoyant barrier member is in de raised, protecting position.
- JP2000345537 discloses a barrier that raises upon flooding water based upon a fixation by means of a side guiding rail 22.
- the upper fixation is only achieved by a point pressure on the sliding member 12 to stop an opposing stop 23 and having opposing point seals leaving a vulnerable construction that also provides substantially no resistance against forces imposed by the flooding water.
- the dam wall member In case water enters the chamber, the dam wall member will rise so that eventually the inclined surface of the blocking element is forced against the inclined. surface of the support block. This will result in a sideward movement until the dam wall member abuts against the hinterland side wall of the chamber. In the closed state, the dam wall member has two contact surfaces, which results in reduced pressures as compared to the barrier of the state of the art. This will result in less wear and more stability of the total barrier.
- the dam wall member By using only one support block, the dam wall member will be forced against the hinterland side wall resulting in an improved sealing of the dam wall member. Also the usage of only one support block is cheaper than having two support blocks. Furthermore, the usage of one support block will be favourable when having to maintain or repair the flood barrier.
- the dam wall member comprises a substantially flat surface facing said hinterland side wall for abutment against said hinterland side wall.
- the flat surface is favourable because it makes the closed barrier more stable.
- the flood barrier comprises a sealing member arranged on said substantially flat surface near a lower outer end of said dam wall member to avoid said water from flowing between said dam wall member and said hinterland side wall.
- a sealing member will improve sealing of the flood barrier and thereby preventing water from the water side flowing to the hinterland side through the flood barrier in case of a flood.
- a reduced water pressure at the hinterland side of the wall member is realised and no tilting of the dam wall member occurs which would otherwise move away the dam wall member from the chamber wall at its lower portion.
- the sealing member comprises rubber or the like.
- the inclined surface of said support block and said inclined surface of said blocking element make, at least in use, an angle with the vertical, said angle having a value between 30°-60°, and preferably equal to about 45°.
- the support block is removably arranged on said water side wall.
- the support block may comprise a bottom which is connectable to said water side wall of said chamber by way of connecting means.
- the support block may further comprise a lockable entrance which provides access to the connecting means.
- a maintenance team can have access to the connecting means in a very simple and effective way.
- the entrance can be opened after which one can disconnect the connecting means and can remove the support block.
- the inclined surface of blocking element transfers to a less or non-inclined surface which is, at least in said closed state, distant from said water side wall of said chamber. In this way clamping of the dam wall member is minimized.
- the blocking element, the forcing element and said retaining wall are one integrated part. This results in easy manufacturing and assembly.
- the chamber of the self closing flood barrier may be arranged to be installed under the ground or partly under the ground, depending on the purpose.
- the chamber is substantially arranged under the ground and connected through a water inlet/outlet with a service pit.
- the flood barrier comprises a lid for closing an opening of said chamber, wherein said lid is fixed to an upper outer end off said dam wall member.
- This lid may also function as an additional extension of the flood barrier in case of a flood because it will prevent waves from creeping over the outer top edge of the dam wall member.
- the lid will function as a breakwater.
- a second aspect of the invention relates to a method for protecting a hinterland against floods by means of a self closing flood barrier as described above, the method comprising:
- Figure 1 shows an embodiment of a flood barrier according to the invention as applied in a dike 1.
- Figure 1 shows the flood barrier in a resting state in which nearby water such as a river 10 has a normal water level.
- the flood barrier comprises a chamber 3 having a water side wall 20 and a hinterland side wall 21.
- the chamber 3 also comprises a bottom 22 which connects the two sidewalls 20, 21 respectively.
- the walls 20, 21 may be constructed out of sheet steel or any other suitable construction known to the skilled person, such as concrete.
- a retaining wall 4 is present which is supported at its lowest side by a buoyant body 5.
- the retaining wall 4 comprises polyester. This material reinforcement may be filled with foam as a sandwich construction and is very strong and also very light.
- the flood barrier also comprises a lid 6 fixed to the top of the retaining wall 4.
- the retaining wall 4 together with the buoyant body 5 is also referred to as dam wall member.
- the buoyant body 5 consists of two, preferably integrated, parts 5a, 5b and actually functions as both a forcing element for causing an upward movement of the dam wall member, and as a blocking element for limiting the upward movement.
- the flood barrier comprises a support block 7 removably connected to the water side wall 20 by means of a connecting means 15.
- the connecting means comprise bolts 15.
- the support block 7 comprises an entrance 14 which is closed by way of a cover 23.
- the position at which the support block 7 is mounted to the side wall 20 is adjustable. In this way, the opening of the chamber 3 can be adjusted to a desired dimension.
- the flood barrier further comprises a service pit 9 which is connected to the chamber 3 by way of a water inlet/outlet 24.
- the water inlet 24 is connected to a vertical pipe 12 in the service pit.
- the water inlet/outlet 24 comprises a valve 13 that is opened in a case the chamber 3 is emptied. In that situation the water inlet/outlet functions as a water outlet 24.
- the service pit 9 is connected through a channel 11 to the water side of the dike 1 as shown in figure 1 .
- the flood barrier is practically invisible under normal water level conditions. On top, the lid 6 locks in the entrenchment space under normal conditions.
- FIG 2 shows the self closing flood barrier of Figure 1 in a flood situation wherein a flood is present resulting in a high water level of the river 10.
- the pipe and the water inlet 24 fill with water resulting in a water stream towards the chamber 3.
- the water in chamber 3 will force the retaining wall 4 to move up because the retaining wall 4 together with the buoyant body 5 are floatable on water.
- the dam wall member will move upwards until the buoyant body 5 is forced at its upper side against the angled wall 17 of the support block 7. This will not only limit the upward movement of the dam wall 4 but will also force the dam wall 4 against the hinterland side wall 21 of chamber 3.
- a closing seal 8 will lock the barrier waterproof. Now the water can rise further without flooding the protected area, i.e. the hinterland.
- the flood barrier functions completely automatically without the need for controlled water inlet.
- the service pit 9 also acts as a kind of water filter. Dirt and mud coming from the river side will deposit at the bottom of the service pit and will not reach the chamber 3.
- the sealing member 8 is arranged on or at the flat side of the dam wall member, and preferable at the lower end of the dam wall member.
- Figure 2 it can be seen that the sealing member 8 seals off the space between the dam wall member and the hinterland side wall 21.
- the pressure between the hinterland side wall 21 and the dam wall member 4,5 is far less than the pressure between the water side wall 20 and the dam wall member 4,5. This pressure difference will result in a force that prevents a lever mechanism as mentioned in EP 1950352 A2 .
- the chamber 3 is drained through outlet 24 with one way check valves 13 or by means of a pump (not shown).
- the dam wall member returns to its resting position within the chamber.
- the lid 6 on top of the dam wall 4 then closes to prevent the inflow of waste or debris.
- Figure 1 is shown that the dam wall member does not rest on a floor of the chamber 3. This results in a space in which mud and the like may deposit. Such deposition will effectively raise the floor of the chamber 3 but this raising will not affect the resting position of the dam wall member.
- the lid will always close the opening of the chamber 3, even when dirt is present at the bottom of the chamber 3.
- the lid will be presses downwards and will thus be closed due to the gravity forces.
- the lid 6 is arranged to support traffic and may be part of a road surface, or a pavement.
- Typical values for the height of the retaining wall 4 are 50 cm, 100 cm, 150 cm, 200 cm or 250 cm. However higher flood barriers are possible.
- the flood barrier comprises one or more seals 26,27, see Figure 2 , for preventing dirt or waste like waif wood, from flowing into the chamber at the upper entrance when the water level is falling.
- FIG. 3 schematically shows a cross section the chamber according to an embodiment.
- the support block 7 is mounted at the inner side of the chamber wall 20.
- the inclined surface 17 of the support block 7 has an angle ⁇ with the vertical, which is preferably between 30-60°, and more preferably about 45°.
- Preferably the same angle ⁇ is used for the inclination of the surface 16 on the buoyant body 5.
- FIG 4 shows an embodiment in which the flood barrier comprises two ground load plates 41,42 mounted on top of the side wall 20,21. These plates will reduce the pressure at the outside of the chamber walls so that the risk of the deformation of the chamber is decreased. Particular in situations wherein heavy traffic passes across the flood barrier, the plates 41,42 will be advantageous.
- the invention may be practiced otherwise than as described.
- the invention may also be used to provide a door for a garage or for closing/protecting any other entrance of a building. It may even be conceivable to provide water basins the walls of which are formed by the flood barrier described above.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Revetment (AREA)
Description
- The invention relates tc a self closing flood barrier and a method for protecting a hinterland against floods by means of such a self closing flood barrier.
- Self closing flood barriers are known in which a dam wall is forced upwards out of a chamber whenever the chamber fills up with water. Such a flood barrier may be installed in for example a dike at a river side. The flood barrier automatically rises in the event of a flood, thereby protecting the hinterland. As compared to conventional flood barriers, moveable flood barriers, also referred to as moveable dams, offer the advantage that they constitute a dam only then when it is really necessary. In a normal situation, the dam is underground and invisible for the environment.
- A moveable dam may comprise a vertical retaining wall which at its lowest side provided with a buoyant body housed in the chamber. The buoyant body forces the retaining wall out of the chamber through an opening at the top of the chamber. The buoyant body may also function as a blocking element in order to limit the upward movement of the retaining wall. In that case the buoyant body will be thicker than the upper opening of the chamber and is thereby prohibited to leave the chamber.
- Publication
EP 1950352 A2 discloses a flood barrier having a rectangular support block at one side of the chamber mounted to one of the chamber walls. A buoyant body comprises a slightly inclined, nearly vertical, side surface which will result in the dam wall moving to the hinterland side of the flood barrier in case of flooding. The buoyant body further comprises an extension at the bottom which abuts to the bottom of the rectangular support block in case of flooding. Due to the specific structure of the flood barrier, the retaining wall and the buoyant body will act as a lever wherein the water pressing against the water side of the retaining wall will try to tilt the floatable part. Due to this tilting, the maximum pressure between the floatable part and the chamber occurs near the top of the chamber at the hinterland side, and between the support block and the buoyant body at the water side. At both sides a contact surface is very small. As a result, the flood barrier will be unstable in case of variable water pressure at the top of the retaining wall due to waves. Furthermore, the contact surfaces are subject to wear due to high and variable pressures. -
GB-A-2.369.387 claim 1. The known movable flood barrier comprises a buoyant barrier member which is raised by allowing it to float on the flooding liquid. The barrier member is located in a floatation chamber which is filled by the rising flood liquid when the liquid reached a predetermined danger level. This barrier is a symmetrically constructed barrier in which the closure between the buoyant barrier member and the chamber is determined by the upward force of the flooding liquid on the buoyant barrier member. The construction therefore requires a relatively large Buoyant member providing upward force with a large building depth below the surface as the floatation force has to be provided by a floating volume below the surface when the buoyant barrier member is in de raised, protecting position. -
JP2000345537 side guiding rail 22. The upper fixation is only achieved by a point pressure on the slidingmember 12 to stop anopposing stop 23 and having opposing point seals leaving a vulnerable construction that also provides substantially no resistance against forces imposed by the flooding water. - It is a goal of the present invention to provide a flood barrier which is more stable and more endurable than the barrier of the state of the art.
- This goal is achieved by a self closing flood barrier according to
claim 1. - In case water enters the chamber, the dam wall member will rise so that eventually the inclined surface of the blocking element is forced against the inclined. surface of the support block. This will result in a sideward movement until the dam wall member abuts against the hinterland side wall of the chamber. In the closed state, the dam wall member has two contact surfaces, which results in reduced pressures as compared to the barrier of the state of the art. This will result in less wear and more stability of the total barrier.
- By using only one support block, the dam wall member will be forced against the hinterland side wall resulting in an improved sealing of the dam wall member. Also the usage of only one support block is cheaper than having two support blocks. Furthermore, the usage of one support block will be favourable when having to maintain or repair the flood barrier.
- The dam wall member comprises a substantially flat surface facing said hinterland side wall for abutment against said hinterland side wall. The flat surface is favourable because it makes the closed barrier more stable.
- In an embodiment, the flood barrier comprises a sealing member arranged on said substantially flat surface near a lower outer end of said dam wall member to avoid said water from flowing between said dam wall member and said hinterland side wall. Such a sealing member will improve sealing of the flood barrier and thereby preventing water from the water side flowing to the hinterland side through the flood barrier in case of a flood. Besides, a reduced water pressure at the hinterland side of the wall member is realised and no tilting of the dam wall member occurs which would otherwise move away the dam wall member from the chamber wall at its lower portion. Preferably the sealing member comprises rubber or the like.
- In a specific embodiment, the inclined surface of said support block and said inclined surface of said blocking element make, at least in use, an angle with the vertical, said angle having a value between 30°-60°, and preferably equal to about 45°.
- Preferably the support block is removably arranged on said water side wall.
- The support block may comprise a bottom which is connectable to said water side wall of said chamber by way of connecting means.
- The support block may further comprise a lockable entrance which provides access to the connecting means. In this way a maintenance team can have access to the connecting means in a very simple and effective way. The entrance can be opened after which one can disconnect the connecting means and can remove the support block.
- Preferably the inclined surface of blocking element transfers to a less or non-inclined surface which is, at least in said closed state, distant from said water side wall of said chamber. In this way clamping of the dam wall member is minimized.
- Preferably the blocking element, the forcing element and said retaining wall are one integrated part. This results in easy manufacturing and assembly.
- The chamber of the self closing flood barrier may be arranged to be installed under the ground or partly under the ground, depending on the purpose.
- In an embodiment the chamber is substantially arranged under the ground and connected through a water inlet/outlet with a service pit.
- Preferably the flood barrier comprises a lid for closing an opening of said chamber, wherein said lid is fixed to an upper outer end off said dam wall member. This lid may also function as an additional extension of the flood barrier in case of a flood because it will prevent waves from creeping over the outer top edge of the dam wall member. The lid will function as a breakwater.
- A second aspect of the invention relates to a method for protecting a hinterland against floods by means of a self closing flood barrier as described above, the method comprising:
- providing the flood barrier described above;
- bringing the flood barrier in a working state;
- letting in of water in the chamber for forcing up the dam wall member.
- Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings in which corresponding reference symbols indicate corresponding parts, and in which:
-
Figure 1 shows an embodiment of a flood barrier according to the invention in a resting state; -
Figure 2 shows the embodiment ofFigure 1 in a closed state. -
Figure 3 schematically shows a cross section the chamber according to an embodiment; -
Figure 4 shows an embodiment in which the flood barrier comprises two ground load plates mounted on top of the side wall. -
Figure 1 shows an embodiment of a flood barrier according to the invention as applied in adike 1.Figure 1 shows the flood barrier in a resting state in which nearby water such as ariver 10 has a normal water level. - In the embodiment of
Figure 1 the flood barrier comprises achamber 3 having awater side wall 20 and ahinterland side wall 21. Thechamber 3 also comprises a bottom 22 which connects the twosidewalls walls retaining wall 4 is present which is supported at its lowest side by abuoyant body 5. Preferably, the retainingwall 4 comprises polyester. This material reinforcement may be filled with foam as a sandwich construction and is very strong and also very light. In this embodiment, the flood barrier also comprises alid 6 fixed to the top of theretaining wall 4. The retainingwall 4 together with thebuoyant body 5 is also referred to as dam wall member. Please note that thebuoyant body 5 consists of two, preferably integrated,parts 5a, 5b and actually functions as both a forcing element for causing an upward movement of the dam wall member, and as a blocking element for limiting the upward movement. - Furthermore, the flood barrier comprises a
support block 7 removably connected to thewater side wall 20 by means of a connectingmeans 15. In a very simple embodiment the connecting means comprisebolts 15. In this embodiment thesupport block 7 comprises an entrance 14 which is closed by way of acover 23. In an embodiment, the position at which thesupport block 7 is mounted to theside wall 20 is adjustable. In this way, the opening of thechamber 3 can be adjusted to a desired dimension. - In this embodiment, the flood barrier further comprises a
service pit 9 which is connected to thechamber 3 by way of a water inlet/outlet 24. Thewater inlet 24 is connected to avertical pipe 12 in the service pit. The water inlet/outlet 24 comprises avalve 13 that is opened in a case thechamber 3 is emptied. In that situation the water inlet/outlet functions as awater outlet 24. Theservice pit 9 is connected through achannel 11 to the water side of thedike 1 as shown infigure 1 . The flood barrier is practically invisible under normal water level conditions. On top, thelid 6 locks in the entrenchment space under normal conditions. -
Figure 2 shows the self closing flood barrier ofFigure 1 in a flood situation wherein a flood is present resulting in a high water level of theriver 10. Only after the water level ofriver 10 rises above the entrance level ofpipe 12, the pipe and thewater inlet 24 fill with water resulting in a water stream towards thechamber 3. The water inchamber 3 will force the retainingwall 4 to move up because theretaining wall 4 together with thebuoyant body 5 are floatable on water. The dam wall member will move upwards until thebuoyant body 5 is forced at its upper side against theangled wall 17 of thesupport block 7. This will not only limit the upward movement of thedam wall 4 but will also force thedam wall 4 against thehinterland side wall 21 ofchamber 3. As soon as thechamber 3 is totally filled, aclosing seal 8 will lock the barrier waterproof. Now the water can rise further without flooding the protected area, i.e. the hinterland. - By using the
service pit 9, the flood barrier functions completely automatically without the need for controlled water inlet. Please note that theservice pit 9 also acts as a kind of water filter. Dirt and mud coming from the river side will deposit at the bottom of the service pit and will not reach thechamber 3. - Preferably, the sealing
member 8 is arranged on or at the flat side of the dam wall member, and preferable at the lower end of the dam wall member. InFigure 2 , it can be seen that the sealingmember 8 seals off the space between the dam wall member and thehinterland side wall 21. In this way, the pressure between thehinterland side wall 21 and thedam wall member water side wall 20 and thedam wall member EP 1950352 A2 . - Once the water level subsides to a normal level, the
chamber 3 is drained throughoutlet 24 with oneway check valves 13 or by means of a pump (not shown). Once the water has left thechamber 3, the dam wall member returns to its resting position within the chamber. Thelid 6 on top of thedam wall 4 then closes to prevent the inflow of waste or debris. InFigure 1 is shown that the dam wall member does not rest on a floor of thechamber 3. This results in a space in which mud and the like may deposit. Such deposition will effectively raise the floor of thechamber 3 but this raising will not affect the resting position of the dam wall member. As a result, the lid will always close the opening of thechamber 3, even when dirt is present at the bottom of thechamber 3. Furthermore, due to the weight of the dam wall member, the lid will be presses downwards and will thus be closed due to the gravity forces. - Preferably, the
lid 6 is arranged to support traffic and may be part of a road surface, or a pavement. Typical values for the height of theretaining wall 4 are 50 cm, 100 cm, 150 cm, 200 cm or 250 cm. However higher flood barriers are possible. - Preferably the flood barrier comprises one or
more seals Figure 2 , for preventing dirt or waste like waif wood, from flowing into the chamber at the upper entrance when the water level is falling. -
Figure 3 schematically shows a cross section the chamber according to an embodiment. Thesupport block 7 is mounted at the inner side of thechamber wall 20. Theinclined surface 17 of thesupport block 7 has an angle α with the vertical, which is preferably between 30-60°, and more preferably about 45°. Preferably the same angle α is used for the inclination of the surface 16 on thebuoyant body 5. These angles will result in a smooth up and down movement of the dam wall member, without the risk of the dam wall member getting stuck between the walls. This risk is even further restricted by the fact that thebuoyant body 5 has asurface 19 that is distant from the inner side of thewall 20 in the closed state. -
Figure 4 shows an embodiment in which the flood barrier comprises twoground load plates side wall plates - While specific embodiments of the invention have been described above, it will be appreciated that the invention may be practiced otherwise than as described. For example, the invention may also be used to provide a door for a garage or for closing/protecting any other entrance of a building. It may even be conceivable to provide water basins the walls of which are formed by the flood barrier described above.
- The descriptions above are intended to be illustrative, not limiting. Thus, it will be apparent to one skilled in the art that modifications may be made to the invention as described without departing from the scope of the claims set out below.
Claims (12)
- Self closing flood barrier for protecting a hinterland against floods, said flood barrier comprising:- a chamber (3) having a water side wall (20) and a hinterland side wall (21;- a single support block (7) with an inclined surface (17);- a water inlet (24) for letting in water;- a dam wall member (4,5a,5b,16,18) up and down movably arranged in said chamber (3), said dam wall member comprising:- a retaining wall (4) for avoiding water to flow to the hinterland;- a forcing element (4,5a,5b) for causing an upward movement of the dam wall member, and- a blocking element (5b) for providing a blockade for limiting said upward movement of the dam wall member, the blocking element (5b) comprising an inclined surface (16), which acts against the inclined surface (17) of the single support block (7) in a closed state of the flood barrier,- wherein the single support block (7) is connected to said water side wall; and- said dam wall member further comprises a substantially flat surface (18) facing said hinterland side wall (21) allowing abutment of the substantially flat surface (18) of the dam wall member against said hinterland side wall (21),characterized by:- the hinterland side wall (21) having a substantially vertical flat surface over its height from the bot-tom of the chamber (3) up to its upper level, which upper level is arranged at the same height as the upper level of the single support block (7),- the abutment of the substantially flat surface (18) of the dam wall member against said hinterland side wall (21) being caused by the inclined surface (16) of the blocking element (5b) being forced by water in the chamber against the inclined surface (17) of the support block (7) resulting in a sideward movement of the dam wall member until its substantially flat surface (18) abuts against the substantially vertical flat surface of the hinterland side wall (21) of the chamber (3).
- Self closing flood barrier according to claim 2, wherein said flood barrier comprises a sealing member (8) arranged on said substantially flat surface (18) near a lower outer end of said dam wall member to avoid said water from flowing between said dam wall member and said hinterland side wall (21).
- Self closing flood barrier according to any of the preceding claims, wherein said inclined surface of said support block and said inclined surface of said blocking element makes, at least in use, an angle with the vertical, said angle having a value between 30°-60°, and preferably equal to about 45°.
- Self closing flood barrier according to any of the preceding claims, wherein said support block is removably arranged on said water side wall.
- Self closing flood barrier according to claim 5, wherein said support block comprises a bottom which is connectable to said water side wall of said chamber by way of connecting means.
- Self closing flood barrier according to claim 6, wherein said support block comprises a lockable entrance which provides access to the connecting means.
- Self closing water barrier according to one or more of the preceding claims, wherein said inclined surface (16) of said blocking element (5b) transfers to a less or non-inclined surface (19) which is, at least in said closed state, distant from said water side wall (20) of said chamber.
- Self closing water barrier according to one or more of the preceding claims, wherein said blocking element (5b), said forcing element (5a) and said retaining wall (4) are one integrated part.
- Self closing flood barrier according to one or more of the preceding claims, wherein said chamber is arranged to be installed under the ground or partly under the ground.
- Self closing flood barrier according to claim 9, wherein said chamber is substantially arranged under the ground and connected through a water inlet/outlet with a service pit.
- Self closing flood barrier according to one or more of the preceding claims, wherein said flood barrier comprises a lid for closing an opening of said chamber, wherein said lid is fixed to an upper outer end off said dam wall member.
- Method for protecting a hinterland against floods by means of a self closing flood barrier according to one or more of the preceding claims, said method comprising:- providing said flood barrier;- bringing said flood barrier in a working state;- letting in of water in said chamber for forcing up said dam wall member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09746799T PL2315880T3 (en) | 2008-05-13 | 2009-04-02 | Self closing flood barrier and method for protecting a hinterland using same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1035415 | 2008-05-13 | ||
PCT/NL2009/050170 WO2009139622A1 (en) | 2008-05-13 | 2009-04-02 | Self closing flood barrier and method for protecting a hinterland using same |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2315880A1 EP2315880A1 (en) | 2011-05-04 |
EP2315880B1 true EP2315880B1 (en) | 2015-12-16 |
Family
ID=40030192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09746799.7A Active EP2315880B1 (en) | 2008-05-13 | 2009-04-02 | Self closing flood barrier and method for protecting a hinterland using same |
Country Status (11)
Country | Link |
---|---|
US (1) | US20110110722A1 (en) |
EP (1) | EP2315880B1 (en) |
JP (1) | JP5702276B2 (en) |
CN (1) | CN102099530B (en) |
AU (1) | AU2009247029A1 (en) |
DK (1) | DK2315880T3 (en) |
ES (1) | ES2565220T3 (en) |
MX (1) | MX341123B (en) |
NL (1) | NL1035546C2 (en) |
PL (1) | PL2315880T3 (en) |
WO (1) | WO2009139622A1 (en) |
Cited By (1)
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WO2021259919A1 (en) | 2020-06-22 | 2021-12-30 | Floodsolutions Nv | Self-closing flood barrier |
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-
2009
- 2009-04-02 DK DK09746799.7T patent/DK2315880T3/en active
- 2009-04-02 MX MX2010012365A patent/MX341123B/en active IP Right Grant
- 2009-04-02 PL PL09746799T patent/PL2315880T3/en unknown
- 2009-04-02 EP EP09746799.7A patent/EP2315880B1/en active Active
- 2009-04-02 JP JP2011509425A patent/JP5702276B2/en active Active
- 2009-04-02 US US12/992,686 patent/US20110110722A1/en not_active Abandoned
- 2009-04-02 CN CN200980120531.1A patent/CN102099530B/en active Active
- 2009-04-02 AU AU2009247029A patent/AU2009247029A1/en not_active Abandoned
- 2009-04-02 WO PCT/NL2009/050170 patent/WO2009139622A1/en active Application Filing
- 2009-04-02 ES ES09746799.7T patent/ES2565220T3/en active Active
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WO2021259919A1 (en) | 2020-06-22 | 2021-12-30 | Floodsolutions Nv | Self-closing flood barrier |
BE1028419A1 (en) | 2020-06-22 | 2022-01-24 | Floodsolutions | Self-closing weir |
Also Published As
Publication number | Publication date |
---|---|
MX341123B (en) | 2016-08-09 |
NL1035546C2 (en) | 2009-11-16 |
MX2010012365A (en) | 2011-05-23 |
AU2009247029A1 (en) | 2009-11-19 |
EP2315880A1 (en) | 2011-05-04 |
JP2011521126A (en) | 2011-07-21 |
CN102099530B (en) | 2015-09-09 |
PL2315880T3 (en) | 2016-06-30 |
CN102099530A (en) | 2011-06-15 |
WO2009139622A1 (en) | 2009-11-19 |
ES2565220T3 (en) | 2016-04-01 |
US20110110722A1 (en) | 2011-05-12 |
DK2315880T3 (en) | 2016-03-21 |
JP5702276B2 (en) | 2015-04-15 |
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