GB2465346A - Raisable flood barrier with sealing and guiding means - Google Patents

Raisable flood barrier with sealing and guiding means Download PDF

Info

Publication number
GB2465346A
GB2465346A GB0820705A GB0820705A GB2465346A GB 2465346 A GB2465346 A GB 2465346A GB 0820705 A GB0820705 A GB 0820705A GB 0820705 A GB0820705 A GB 0820705A GB 2465346 A GB2465346 A GB 2465346A
Authority
GB
United Kingdom
Prior art keywords
wall section
sealing member
barrier
section
sealing
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.)
Withdrawn
Application number
GB0820705A
Other versions
GB0820705D0 (en
Inventor
Jack Bennett
Craig Edwards
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0820705A priority Critical patent/GB2465346A/en
Publication of GB0820705D0 publication Critical patent/GB0820705D0/en
Publication of GB2465346A publication Critical patent/GB2465346A/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Abstract

A flood prevention barrier apparatus comprising one or more flood barriers comprising a trough section 20; a wall section 30 movable between a first position 32 in which the wall section is substantially contained within the trough section and a second position 34 in which the wall section extends substantially vertically from the trough section; at least one first sealing member 40 adapted to prevent or inhibit flood water from flowing beyond the wall section when the first sealing member is in contact with a portion 50 of the barrier; and guide means 60 adapted to laterally displace at least a portion of the wall section when the wall section is at or near the second position, thereby causing or increasing contact between the first sealing member and the portion of the barrier. The application also discloses a sealing member (Fig 3) for use with the flood barrier.

Description

Flood Prevention Barrier The present invention relates to flood prevention barriers which are adapted to rise as the level of flood water rises. In particular, but not exclusively, the present invention relates to flood prevention barriers having an improved sealing arrangement.
It is known to provide flood barriers having a wall which rises in response to an increasing level of flood water and thereby prevents or limits the rising water from flowing beyond the flood barrier. The buoyant wall is mounted within a trough and, during flooding conditions, flood water enters the trough and lifts the barrier wall.
Such a flood barrier is unobtrusive and non-obstructive when not in use.
However, conventional sealing arrangements are known to be limited in their effectiveness or can easily fail. One reason for this is that the moving barrier wall must be allowed to rise and fall within its trough. Making a tight seal during this motion can interfere with the movement of the wall or can damage the seal. Also, conventional seals have a sealing face which is constant in its dimensions regardless of the position of the wall.
It is desirable to provide an arrangement which makes a tight seal only when the barrier wall is at or near its fully raised position. it is desirable that the barrier wall is at or near its fully raised position at relatively low levels of flood water. It is desirable to provide a seal which has a small sealing face as the barrier wall is rising or falling, to avoid interfering with movement of the wall or frictional wear of the seal, but which has a greater sized sealing face when the barrier wall is at its operating position.
To provide effective sealing, conventional barrier apparatus require small tolerances during construction. This can be complex considering the scale of the apparatus and the materials used. It is desirable to provide an arrangement which eliminates the need for these small tolerances.
According to a first aspect of the present invention, there is provided a flood prevention barrier apparatus comprising one or more flood barriers, one or more of the barriers comprising: a trough section; a wall section movable between a first position in which the wall section is substantially contained within the trough section and a second position in which the wall section extends substantially vertically from the trough section; at least one first sealing member adapted to prevent or inhibit flood water from flowing beyond the wall section when the first sealing member is in contact with a portion of the barrier; and guide means adapted to laterally displace at least a portion of the wall section when the wall section is at or near the second position, thereby causing or increasing contact between the first sealing member and the portion of the barrier.
The portion of the barrier may comprise the trough section or a component coupled to the trough section. Alternatively, the portion of the barrier may comprise the wall section or a component coupled to the wall section.
The guide means may be adapted to laterally displace the portion of the wall section in a direction away from the flood water when the wall section is at or near the second position.
The guide means may be adapted to rotationally displace an upper portion of the wall section when the wall section is at or near the second position, thereby causing lateral displacement of a lower portion of the wall section. Alternatively or in addition, the guide means may be adapted to linearly and horizontally displace the entire wall section when the wall section is at or near the second position.
The guide means may include an obliquely orientated guiding surface. The portion of the barrier may include an obliquely orientated surface which co-operates with the obliquely orientated guiding surface to cause laterally displacement of at least a portion of the wall section when the wall section is at or near the second position.
The guide means may include at least one protrusion for preventing face to face contact between the guide means and the wall section.
Alternatively the guide means may comprise a plurality of protrusions which laterally extend to contact the wall section when the wall section is at or near the second position, the protrusions increasing in length as the vertical height increases.
Alternatively the guide means may comprise a rotating cam member having a cam surface. The cam surface may have a moving contact point which increases in distance from the centre of rotation of the cam member as the wall section moves to the second position, thereby causing or increasing contact between the first sealing member and the portion of the barrier. The cam member may be provided at one of the trough section and the wall section.
The barrier may include at least one vertical support member for supporting the wall section when the wall section is at or near the second position. A vertical support member may be provided at each vertical side of the wall section. The or each vertical support member may comprise a fixed post. The support member may comprise an H beam. The guide means may be provided at the support member.
The first sealing member may have a first sealing face at a first contact pressure between the first sealing member and the portion of the barrier and a second sealing face at a second contact pressure between the first sealing member and the portion of the barrier. The second contact pressure may be greater than the first contact pressure. The second sealing face may have a greater contact area than the first sealing face.
The first sealing member may have a first portion which is adapted to make first contact with the portion of the barrier. The first sealing member may have a second portion, and the first portion may be movable when the contact pressure reaches the second contact pressure such that the second portion makes contact with the portion of the barrier. Alternatively or in addition, the first portion may be compressible when the contact pressure reaches the second contact pressure such that the second portion makes contact with the portion of the barrier.
The first portion of the first sealing member may comprise a PTFE material. The second portion of the first sealing member may comprise a rubber, such as EPDM, material.
A second sealing member may be provided to contact the first sealing member when the wall section is at or near the second position. The second sealing member may have a greater sealing face area than that of the first sealing member. The barrier may include a cill member which is provided adjacent a longitudinal edge of the trough section. The second sealing member may be at least partly provided at the cill member. The cill member may have an L shaped profile.
The wall section may be buoyant such that flood water entering the trough section causes the wall section to move towards the second position. The base of the wall section may include one or more spacer members to allow flood water entering the trough section to act upon the base surface of the wall section. Alternatively, the base of the trough section may include one or more spacer members to allow flood water entering the trough section to act upon the base surface of the wall section.
The wall section may be adapted such that flood water entering the trough section causes the wall section to move to the second position when the flood water is near or less than the level of the top of the trough section. Preferably, the wall section is substantially formed from a material having a density less than 1000 kg/rn3, more preferably less than 100 kg/rn3, most preferably about 30 kg/rn3. The wall section may be substantially formed from a Styrofoam material. The material may be configured to substantially prevent the ingress of water. The material may be substantially non-absorbent.
The wall section may include means for manual lifting of the wall section.
According to a second aspect of the present invention, there is provided a first sealing member comprising: a first portion which defines a recess; and a second portion provided in the recess such that a gap exists between the first portion and the second portion, the second portion providing the sealing face of the first sealing member when a first contact pressure is applied to the first sealing member, wherein the second portion is movable into the gap when a greater second contact pressure is applied to the second portion, such that both the first and the second portions provide the sealing face of the first sealing member.
The first portion may include means for increasing the compressibility of the first portion. The means may comprise one or more of an aperture, slot, recess, or the like.
The first portion of the first sealing member may comprise a rubber, such as EPDM, material. The second portion of the first sealing member may comprise a PTFE material.
The first sealing member may be provided at a flood prevention barrier. The barrier may comprise a trough section and a movable wall section. The first sealing member may be adapted to prevent or inhibit flood water from flowing beyond the wall section when the first sealing member is in contact with a portion of the barrier.
The first sealing member may be provided at one of the trough section and the wall section.
A second sealing member may be provided to contact the first sealing member. The second sealing member may be provided at the other of the trough section and the wall section. The second sealing member may comprise a PTFE material.
Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings in which: Figure 1 is a sectional side view of a flood barrier; Figure 2 is a detailed sectional plan view of the flood barrier of Figure 1; Figure 3 is a side view of first and second seals of the flood barrier of Figure 1; Figure 4 is a (a) plan view and (b) side view of a cill member of the flood barrier of Figure 1; Figure 5 is a (a) side view and (b) plan view of a wall section of the flood barrier of Figure 1; Figure 6 is a (a) plan view and (b) side view of the wall section of Figure 5; Figure 1 shows a flood barrier 10 which comprises a trough section 20 and a buoyant wall section 30. The wall section 30 is movable, under the action of flood water 100 which has entered the trough section 20, between a first position 32 in which the wall section 30 is contained within the trough section 20 and a second position 34 in which the wafl section 30 extends vertically from the trough section 20. The barrier includes vertical support members 70 in the form of fixed posts at each side of the wall section 30 for supporting the wall section 30 at the raised position 34. Each post has an H beam profile.
A first seal 40 is provided at a lower portion and on the "dry" side (the opposite side from the side in contact with the flood water 100) of the wall section 30. The first seal 40 prevents flood water 100 from flowing beyond the wall section 30 during flooding conditions when the first seal 40 is in contact with a second seal 50 provided at the trough section 20.
To ensure adequate sealing, guide means comprising a vertical wedge member 60 is provided at the support member 70 on the "wet" side of the wall section 30. The wedge member 60 is adapted to laterally displace the wall section 30 in a direction A' (which is away from the flood water 100 held back by the wall section 30) when the wall section 30 rises to the second position. This increases the contact between the first seal 40 and the second seal 50.
The wedge member 60 has an obliquely orientated guiding surface 62. Therefore, as the wall section 30 rises to the second position, the wall section 30 is increasingly pushed back to a rear of the trough section 20. The wall section 30 also has an obliquely orientated surface 36 and this co-operates with the guiding surface 62 to cause laterally displacement. The entire wall section 30 can be horizontally displaced, or the wedge member 60 can cause rotation of the upper portion of the wall section 30 which, since the wall section 30 is supported at its base by the flood water 100, will cause lateral displacement of a lower portion of the wall section 30.
A combination of linear and rotational displacement may occur.
The wedge member 60 also limits the vertical rising of the wall section 30. At a predetermined height, the wall section 30 will be tight against the support member at the rear and the wedge member 60 at the front.
The wedge member 60 includes a protrusion in the form of a weld bead 52 on its guiding surface 62 to prevent face to face contact between the wedge member 60 and the wall section 30.
It is to be noted that, since the wall section 30 also has an obliquely orientated surface 36, the thickness of the wall section 30 at a particular vertical height increases as the wall section 30 rises. Therefore, in an alternative embodiment, the wedge member 60 could be eliminated and replaced by a fixed contact point at this vertical height and the wall section 30 would still be laterally displaced due to its increasing thickness.
In another alternative embodiment, the guide means could comprise a rotating cam member having a cam surface in contact with the wall section 30. The cam surface would have a moving contact point which could be adapted to increase in distance from the centre of rotation of the cam member as the wall section 30 moves to the second position. This would cause lateral displacement of the wall section 30 and therefore increasing contact between the first seal 40 and the second seal 50.
Figure 3 shows the first seal 40 and second seal 50. The first seal 40 comprises a first portion 42 formed from a rubber such as EPDM and which defines a recess. A second portion 44 formed from a PTFE material is located within this recess such that a gap 46 exists between the first portion 42 and the second portion 44.
The first seal 40 includes a nylon carrier 48 for attaching the first seal 40 to the wall section 30. When a zero or low contact pressure is applied to the first seal 40, the second portion 44 extends the furthest from the carrier 48 and so provides the sealing face of the first seal 40 at this contact pressure. However, when a higher contact pressure is applied to the first seal 40, the second portion 44 will move into the gap 46 so that both the first and the second portions then provide the sealing face of the first seal 40.
This arrangement allows some sealing as the wall section 30 is rising. However, at this stage the first seal 40 has a sealing face of reduced area. Also, the material providing the sealing at this stage (for both the first seal 40 and the second seal 50) has a relatively low co-efficient of friction. The limited sealing at this stage is not problematic since the level of flood water 100 is low (at or near the top level of the trough section 20).
When the wall section 30 has fully risen and has been laterally forced back such that a higher contact pressure is applied to the first seal 40, the first seal 40 will have a sealing face of greater area since both the first and the second portions will provide the sealing face. Also, the material of the first portion 42 which contributes to the sealing at this stage can be selected for its sealing effectiveness regardless of its co-efficient of friction. This is because, at this stage, there is no sliding movement of the first seal 40 relative to the second seal 50.
The first portion 42 includes two apertures 49 which provide means for increasing the compressibility of the first portion 42. These can be sized to produce the desired compressibility.
The second seal 50 is a simple planar seal formed from a PTFE material. A shown in Figure 2, the second seal 50 is provided on an internal surface of a rear (dry side) flange 72 of the support member 70. Also, a cill 80 runs along the rear longitudinal edge of the trough section 20. As shown in Figure 4, the cill 80 has an L shaped profile, and the second seal 50 is provided on the vertical face of the cill 80.
The wall section 30 is adapted so that flood water 100 entering the trough section 20 causes the wall section 30 to move to the second position when the flood water 100 is about the level of the top of the trough section 20. To achieve this, the wall section 30 is formed from a Styrofoam material 32 having a density of about 30 kg/m3 provided within a skin of GRP material 34. This material is non-absorbent and so prevents the ingress of water even in the event that the GRP skin is penetrated. It should also be noted that, since the wall section 30 itself is slightly wedge shaped, a greater proportion of the mass of the wall section 30 is distributed at its lower portion. This will assist early rising of the wall section 30.
Layers of GRP 34 are also used to form compartments in the wall section 30 (similar to bulkheads) to increase the stiffness of the wall section 30.
The wall section 30 includes eyelets 36 which provide means for manual lifting of the wall section 30. The base of the wall section includes a number of spacers 38 to allow flood water 100 entering the trough section 20 to act upon the base surface of the wall section 30.
A cover 90 is provided at the top of the wall section 30 so that, when the wall section is within the trough section 20, the cover spans the trough section 20.
Various modifications can be made without departing from the scope of the invention.

Claims (35)

  1. Claims 1. A flood prevention barrier apparatus comprising one or more flood barriers, one or more of the barriers comprising: a trough section; a wall section movable between a first position in which the wall section is substantially contained within the trough section and a second position in which the wall section extends substantially vertically from the trough section; at least one first sealing member adapted to prevent or inhibit flood water from flowing beyond the wall section when the first sealing member is in contact with a portion of the barrier; and guide means adapted to laterally displace at least a portion of the wall section when the wall section is at or near the second position, thereby causing or increasing contact between the first sealing member and the portion of the barrier.
  2. 2. An apparatus as claimed in Claim 1, wherein the portion of the barrier comprises the trough section or a component coupled to the trough section.
  3. 3. An apparatus as claimed in Claim 1 or 2, wherein the guide means is adapted to laterally displace the portion of the wall section in a direction away from the flood water when the wall section is at or near the second position.
  4. 4. An apparatus as claimed in any preceding claim, wherein the guide means is adapted to rotationally displace an upper portion of the wall section when the wall section is at or near the second position, thereby causing lateral displacement of a lower portion of the wall section.
  5. 5. An apparatus as claimed in any preceding claim, wherein the guide means is adapted to linearly and horizontally displace the entire wall section when the wall section is at or near the second position.
  6. 6. An apparatus as claimed in any preceding claim, wherein the guide means includes an obliquely orientated guiding surface.
  7. 7. An apparatus as claimed in Claim 6, wherein the portion of the barrier includes an obliquely orientated surface which co-operates with the obliquely orientated guiding surface to cause laterally displacement of at least a portion of the wall section when the wall section is at or near the second position.
  8. 8. An apparatus as claimed in any preceding claim, wherein the guide means includes at least one protrusion for preventing face to face contact between the guide means and the wall section.
  9. 9. An apparatus as claimed in any preceding claim, wherein the barrier includes at least one vertical support member for supporting the wall section when the wall section is at or near the second position.
  10. 10. An apparatus as claimed in Claim 9, wherein a vertical support member is provided at each vertical side of the wall section, and wherein each vertical support member comprises a fixed post.
  11. 11. An apparatus as claimed in any preceding claim, wherein the first sealing member has a first sealing face at a first contact pressure between the first sealing member and the portion of the barrier, and a second sealing face at a second contact pressure between the first sealing member and the portion of the barrier.
  12. 12. An apparatus as claimed in Claim 11, wherein the second contact pressure is greater than the first contact pressure, and wherein the second sealing face has a greater contact area than the first sealing face.
  13. 13. An apparatus as claimed in Claim 11 or 12, wherein the first sealing member has a first portion which is adapted to make first contact with the portion of the barrier.
  14. 14. An apparatus as claimed in Claim 13, wherein the first sealing member has a second portion, and wherein the first portion is movable when the contact pressure reaches the second contact pressure such that the second portion makes contact with the portion of the barrier.
  15. 15. An apparatus as claimed in any of Claims 11 to 14, wherein the first portion of the first sealing member comprises a PTFE material, and wherein the second portion of the first sealing member comprises a rubber material.
  16. 16. An apparatus as claimed in any preceding claim, wherein a second sealing member is provided to contact the first sealing member when the wall section is at or near the second position.
  17. 17. An apparatus as claimed in Claim 16, wherein the second sealing member has a greater sealing face area than that of the first sealing member.
  18. 18. An apparatus as claimed in Claim 16 or 17, including a cill member which is provided adjacent a longitudinal edge of the trough section, and wherein the second sealing member is at least partly provided at the cill member.
  19. 19. An apparatus as claimed in any preceding claim, wherein the wall section is buoyant such that flood water entering the trough section causes the wall section to move towards the second position.
  20. 20. An apparatus as claimed in Claim 19, wherein the base of the wall section includes one or more spacer members to allow flood water entering the trough section to act upon the base surface of the wall section.
  21. 21. An apparatus as claimed in Claim 19 or 20, wherein the wall section is adapted such that flood water entering the trough section causes the wall section to move to the second position when the flood water is near or less than the level of the top of the trough section.
  22. 22. An apparatus as claimed in any preceding claim, wherein the wall section is substantially formed from a material having a density less than 100 kg/rn3.
  23. 23. An apparatus as claimed in any preceding claim, wherein the wall section is substantially formed from a material having a density between 20 and 50 kg/m3.
  24. 24. An apparatus as claimed in any preceding claim, wherein the wall section is substantially formed from a Styrofoam material.
  25. 25. A first sealing member comprising: a first portion which defines a recess; and a second portion provided in the recess such that a gap exists between the first portion and the second portion, the second portion providing the sealing face of the first sealing member when a first contact pressure is applied to the first sealing member, wherein the second portion is movable into the gap when a greater second contact pressure is applied to the second portion, such that both the first and the second portions provide the sealing face of the first sealing member.
  26. 26. A first sealing member as claimed in Claim 25, wherein the first portion includes means for increasing the compressibility of the first portion.
  27. 27. A first sealing member as claimed in Claim 26, wherein the means comprises one or more of an aperture, slot, or a recess.
  28. 28. A first sealing member as claimed in any of Claims 25 to 27, wherein the first portion of the first sealing member comprises a rubber material.
  29. 29. A first sealing member as claimed in any of Claims 25 to 28, wherein the second portion of the first sealing member comprises a PTFE material.
  30. 30. A first sealing member as claimed in any of Claims 25 to 29, wherein the first sealing member is provided at a flood prevention barrier.
  31. 31. A first sealing member as claimed in Claim 30, wherein the barrier comprises a trough section and a movable wall section, and wherein the first sealing member is adapted to prevent or inhibit flood water from flowing beyond the wall section when the first sealing member is in contact with a portion of the barrier.
  32. 32. A first sealing member as claimed in any of Claims 25 to 31, wherein a second sealing member is provided to contact the first sealing member.
  33. 33. A first sealing member as claimed in Claim 32, wherein the second sealing member comprises a PTFE material.
  34. 34. A flood prevention barrier apparatus substantially as hereinbefore described and illustrated in the accompanying drawings.
  35. 35. A first sealing member substantially as hereinbefore described and illustrated in the accompanying drawings.
GB0820705A 2008-11-12 2008-11-12 Raisable flood barrier with sealing and guiding means Withdrawn GB2465346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0820705A GB2465346A (en) 2008-11-12 2008-11-12 Raisable flood barrier with sealing and guiding means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0820705A GB2465346A (en) 2008-11-12 2008-11-12 Raisable flood barrier with sealing and guiding means

Publications (2)

Publication Number Publication Date
GB0820705D0 GB0820705D0 (en) 2008-12-17
GB2465346A true GB2465346A (en) 2010-05-19

Family

ID=40139806

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0820705A Withdrawn GB2465346A (en) 2008-11-12 2008-11-12 Raisable flood barrier with sealing and guiding means

Country Status (1)

Country Link
GB (1) GB2465346A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015121229A1 (en) * 2014-02-13 2015-08-20 Bluewater Design Associates Limited Self-activating flood protection barrier
CN106759102A (en) * 2017-02-14 2017-05-31 中国水利水电科学研究院 Emergency flood fighting geotechnique bag and its application method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000345537A (en) * 1999-06-04 2000-12-12 Tsutomu Odawara Buoyancy type floor surface water cut-off device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000345537A (en) * 1999-06-04 2000-12-12 Tsutomu Odawara Buoyancy type floor surface water cut-off device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015121229A1 (en) * 2014-02-13 2015-08-20 Bluewater Design Associates Limited Self-activating flood protection barrier
CN105980633A (en) * 2014-02-13 2016-09-28 蓝水设计联合有限公司 Self-activating flood protection barrier
US9689129B2 (en) 2014-02-13 2017-06-27 Bluewater Design Associates Limited Self-activating flood protection barrier
CN105980633B (en) * 2014-02-13 2018-12-07 卓纳吉设计有限公司 Self-excitation live-in flood defence barrier
CN106759102A (en) * 2017-02-14 2017-05-31 中国水利水电科学研究院 Emergency flood fighting geotechnique bag and its application method

Also Published As

Publication number Publication date
GB0820705D0 (en) 2008-12-17

Similar Documents

Publication Publication Date Title
JP3977848B2 (en) Simple waterproof board using floating body
KR101638160B1 (en) Gate for preventing flood damage of slide type
US7744310B2 (en) Hydrostatically operated variable height bulkhead
EP2601354B1 (en) A method of installation of a self-actuating flood guard
US4726709A (en) Sealing assemblies
US20150308180A1 (en) Door bottom system for an entryway system
CA2636989C (en) Reciprocating slat conveyor with continuous splash guard bearings
JP4644734B2 (en) Flood control equipment
US9903081B2 (en) Floating flap gate
JP4830054B1 (en) shutter
GB2465346A (en) Raisable flood barrier with sealing and guiding means
KR20190046771A (en) A sliding wall device having a cover member
KR101129042B1 (en) Water gate structure
US20030222411A1 (en) Slide gate sealing system
AU2015351723B2 (en) Floating flap gate
JP4880544B2 (en) Waterproof door device
KR101444885B1 (en) Rotary type movable weir
WO2012076855A1 (en) Automatically operating flood barrier
KR101059553B1 (en) Apparatus for closing water
GB2450875A (en) Flood prevention barrier incorporating a float member
GB2451843A (en) A barrier with a pivotably mounted cantilever member
JP6464388B2 (en) Emergency protective device
KR102576808B1 (en) Flip-up Gate Operating Apparatus
JP2016180215A (en) Water cut-off structure at entrance
KR20160013363A (en) Doorframe plate of pulling up type floodgate device

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)