WO2009054717A1 - Artificial beach - Google Patents

Artificial beach Download PDF

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Publication number
WO2009054717A1
WO2009054717A1 PCT/NL2008/050648 NL2008050648W WO2009054717A1 WO 2009054717 A1 WO2009054717 A1 WO 2009054717A1 NL 2008050648 W NL2008050648 W NL 2008050648W WO 2009054717 A1 WO2009054717 A1 WO 2009054717A1
Authority
WO
WIPO (PCT)
Prior art keywords
artificial beach
floating
beach
artificial
floating body
Prior art date
Application number
PCT/NL2008/050648
Other languages
French (fr)
Inventor
Jan Koen Olthuis
Original Assignee
Dutch Docklands International B.V.
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 Dutch Docklands International B.V. filed Critical Dutch Docklands International B.V.
Publication of WO2009054717A1 publication Critical patent/WO2009054717A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
    • B63B34/50—Body-supporting buoyant devices, e.g. bathing boats or water cycles
    • 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
    • E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
    • E02B3/062—Constructions floating in operational condition, e.g. breakwaters or wave dissipating walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • 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

Definitions

  • the invention relates to an artificial beach comprising a floating base on which a beach material, such as sand, has been deposited so as to create said beach.
  • Such an artificial beach is known from Japanese patent publication No. JP-7223584 (Tokyo Construction) .
  • the known artificial beach is built up of an inflatable pontoon on which a sandy beach is laid out.
  • a drawback of the artificial beach that is known from the aforesaid Japanese patent specification is that swimmers must swim in the open sea, with all its dangers of, for example, strong ocean currents and/or dangerous fish, such as sharks and the like.
  • Another drawback of the known artificial beach is that the sandy beach formed thereon is vulnerable, in particular because waves, tides, water level fluctuations and ocean currents may lead to erosion thereof.
  • the object of the invention is to improve the artificial beach that is known from the prior art, more particularly to provide an artificial beach which enables swimmers to swim safely and which prevents the aforesaid erosion and the resulting consequences from occurring.
  • an artificial beach of the kind referred to in the introduction characterised in that the artificial beach comprises a flexible match, which extends at least partially under water from at least one side of the floating base to a floating body disposed further on so as to form a swimming area therebetween.
  • the present beach is built up of a rigid part, viz. the base floating on the (sea) water, which functions as a "foundation” for facilities to be constructed thereon, such as (vacation) homes, hotels, cafes and the like, and of a flexible part, viz.
  • the flexible mat that extends from one side of the floating base into the (sea) water, up to the floating body, and the floating body floating on the (sea) water further on, which floating body is located some distance away from the floating base, therefore.
  • the floating body causes waves to decrease in force so as to prevent erosion of the artificial beach resulting from said waves.
  • the floating body is used for anchoring the flexible mat thereto, whilst the floating body also functions as a safe demarcation for the swimming zone defined by the flexible mat.
  • the flexible mat furthermore functions to collect dislodged or eroded sand that has landed thereon. Said sand can subsequently be placed back on the beach by suction/pumping or scraping and is not lost, therefore.
  • the aforesaid beach material is preferably sand, but that it is also possible to use another material, such as gravel or the like.
  • the flexible mat is at least substantially made of a flexible plastic material.
  • Said flexible plastic material is preferably selected from the group consisting of a rubber material and a foam material.
  • the flexible mat forms a plastic foil, as it were, for example of an elastomer, such as rubber, or PVC or a polyurethane foam material, which is attached to the floating base at one edge thereof and which is attached to the floating body at an opposite edge.
  • the plastic mat is thus configured as an elegant, lightweight construction exhibiting a high degree of flexibility, which only needs to be capable of withstanding small forces, for example exerted by persons walking thereon.
  • the flexible mat has a bowl- shaped cross-section.
  • the flexible mat is convex in shape, seen from above, and thus forms a bowl- shaped swimming zone.
  • a layer of sand is disposed on the flexible mat. In this way a swimming zone having the natural appearance of, for example, a seabed is created.
  • the buoyancy of the floating body is such that an upper side of the floating body is level with the water surface. More in particular, the floating body is provided with a downwardly extending safety net at a bottom side thereof. This prevents swimmers from getting under the floating body.
  • the floating body is tubular in shape.
  • the floating body is preferably built up of coupled- together tube segments, which may be weighted so as to obtain a sufficiently heavy construction for causing waves to decrease in force and to ensure that the floating body does not project too far above the water surface.
  • the floating body is a wooden beam.
  • the floating base comprises a first edge area and a second edge area on at least one side thereof, which first edge area includes an angle of 30° - 60° with the horizontal, and which second edge area includes an angle of 10° - 30° with the horizontal. The two edge areas form an artificial beach that gradually slopes down into the (sea) water from the floating base.
  • the first edge area abuts the floating base with a first edge thereof and a first edge of the second edge area with an opposite second edge thereof.
  • the second edge area comprises a second edge located opposite said first edge, which second edge is positioned in the (sea) water and to which the flexible mat is attached.
  • the first edge area is also referred to as "berm” and prevents higher waves from reaching the sand on the floating base.
  • the second edge area which is also referred to as "plunge step", functions to slow down incoming waves and forms a natural transition to the (sea) water.
  • one of the two edge areas, or both edge areas is/are reinforced so as to prevent the aforesaid erosion of sand and sediment movements.
  • the present invention therefore provides a low- maintenance, comfortable, artificial beach provided with fans in all kinds of gradations, sorts and colours, which makes the artificial beach look natural.
  • the invention also relates to an artificial beach according to the invention, wherein the floating base is made up of a number of coupled-together base elements, each base element being made up of a number of floating blocks at least substantially made of expanded polystyrene, also referred to as "EPS" or “styropor” in practice, which are joined together under pre-tension, and rigid plates at least substantially made of concrete.
  • EPS expanded polystyrene
  • the floating base is formed in accordance with the present inventors' European patent publication No. 1 710 356. The content of said patent publication is to be considered incorporated herein, therefore.
  • the present invention is not limited to the makeup of the floating base, however, so that it is also possible within the framework of the present invention to use floating bases different from that described in the aforesaid European patent publication.
  • FIG. 1 schematically show an artificial beach according to a preferred variant of the invention in perspective view and in cross-sectional view, respectively.
  • the two figures show an artificial beach (1) built up of a floating base (2) on which sand has been deposited, and of a flexible mat (3) of PVC or another plastic material which extends partially under the sea water from the floating base (2) to a floating body (4) located some distance from said floating base (2) for forming a swimming zone (5) of bowl- shaped cross-section therebetween.
  • the floating base (2) is made up of a number of coupled-together base elements (not shown) , each base element being made up of a number of floating blocks at least substantially made of expanded polystyrene, which are joined together under pre-tension, and concrete plates.
  • the floating base (2) comprises a first edge area (6) and a second edge area (7), which are both reinforced.
  • the first edge area (6) includes an angle of about 45° with the horizontal, whilst the second edge area (7) includes an angle of about 25° with the horizontal.
  • the two edge areas (6, 7) form an artificial beach that slopes down into the (sea) water.
  • the first edge area (6) abuts the floating base (2) with a first edge (8) thereof and a first edge (10) of the second edge area (7) with an opposite second edge thereof.
  • the second edge area (7) in turn comprises a second edge (11) located opposite said first edge (10), which second edge (11) is positioned in the (sea) water and to which the flexible mat (3) is attached.
  • the flexible mat (3) is furthermore attached to coupled- together tube segments (12) .
  • Said tube segments (12) are internally weighted so as to ensure that the tube segments will float just below the water surface.
  • the tube segments (12) may be jointly fitted with a net that extends downwards towards the seabed, which functions to prevent swimmers getting under the tube segments (12) from the swimming zone.
  • a layer of sand has been deposited on the flexible mat (3) so as to make the whole look as naturally as possible.
  • the floating base (2), the flexible mat (3) and the floating body (4) are also referred to as "beach face”, “runnel” and “floating tube”, respectively.
  • the two edge areas (6, 7) are in that case referred to as “berm” and “plunge step”, respectively, whilst the first edge (8) and the second edge (9) are also called “ridge beach face/berm” and “ridge berm/plunge step”, respectively .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Architecture (AREA)
  • Revetment (AREA)

Abstract

An artificial beach (1) comprising a floating base (2) on which a beach material, such as sand, has been deposited so as to create said beach, which is characterised in that the artificial beach comprises a flexible mat (3), which extends at least partially under water from at least one side of the floating base (2) to a floating body (12) disposed further on so as to form a swimming area (5) there between. More particularly, the flexible mat (3) is at least substantially made of a flexible plastic material selected from the group consisting of a rubber material and a foam material.

Description

ARTIFICIAL BEACH
The invention relates to an artificial beach comprising a floating base on which a beach material, such as sand, has been deposited so as to create said beach.
Such an artificial beach is known from Japanese patent publication No. JP-7223584 (Tokyo Construction) . The known artificial beach is built up of an inflatable pontoon on which a sandy beach is laid out.
A drawback of the artificial beach that is known from the aforesaid Japanese patent specification is that swimmers must swim in the open sea, with all its dangers of, for example, strong ocean currents and/or dangerous fish, such as sharks and the like. Another drawback of the known artificial beach is that the sandy beach formed thereon is vulnerable, in particular because waves, tides, water level fluctuations and ocean currents may lead to erosion thereof.
The object of the invention is to improve the artificial beach that is known from the prior art, more particularly to provide an artificial beach which enables swimmers to swim safely and which prevents the aforesaid erosion and the resulting consequences from occurring.
In order to accomplish that object, an artificial beach of the kind referred to in the introduction is according to the invention characterised in that the artificial beach comprises a flexible match, which extends at least partially under water from at least one side of the floating base to a floating body disposed further on so as to form a swimming area therebetween. In other words, the present beach is built up of a rigid part, viz. the base floating on the (sea) water, which functions as a "foundation" for facilities to be constructed thereon, such as (vacation) homes, hotels, cafes and the like, and of a flexible part, viz. the flexible mat that extends from one side of the floating base into the (sea) water, up to the floating body, and the floating body floating on the (sea) water further on, which floating body is located some distance away from the floating base, therefore. The floating body causes waves to decrease in force so as to prevent erosion of the artificial beach resulting from said waves. In addition, the floating body is used for anchoring the flexible mat thereto, whilst the floating body also functions as a safe demarcation for the swimming zone defined by the flexible mat. The flexible mat furthermore functions to collect dislodged or eroded sand that has landed thereon. Said sand can subsequently be placed back on the beach by suction/pumping or scraping and is not lost, therefore.
It is noted that the aforesaid beach material is preferably sand, but that it is also possible to use another material, such as gravel or the like.
In a preferred embodiment of an artificial beach according to the invention, the flexible mat is at least substantially made of a flexible plastic material. Said flexible plastic material is preferably selected from the group consisting of a rubber material and a foam material. The flexible mat forms a plastic foil, as it were, for example of an elastomer, such as rubber, or PVC or a polyurethane foam material, which is attached to the floating base at one edge thereof and which is attached to the floating body at an opposite edge. The plastic mat is thus configured as an elegant, lightweight construction exhibiting a high degree of flexibility, which only needs to be capable of withstanding small forces, for example exerted by persons walking thereon.
In another preferred embodiment of an artificial beach according to the invention, the flexible mat has a bowl- shaped cross-section. In other words, the flexible mat is convex in shape, seen from above, and thus forms a bowl- shaped swimming zone.
In another preferred embodiment of an artificial beach according to the invention, a layer of sand is disposed on the flexible mat. In this way a swimming zone having the natural appearance of, for example, a seabed is created.
In another preferred embodiment of an artificial beach according to the invention, the buoyancy of the floating body is such that an upper side of the floating body is level with the water surface. More in particular, the floating body is provided with a downwardly extending safety net at a bottom side thereof. This prevents swimmers from getting under the floating body.
In another preferred embodiment of an artificial beach according to the invention, the floating body is tubular in shape. The floating body is preferably built up of coupled- together tube segments, which may be weighted so as to obtain a sufficiently heavy construction for causing waves to decrease in force and to ensure that the floating body does not project too far above the water surface. In another embodiment variant, the floating body is a wooden beam. In another preferred embodiment of an artificial beach according to the invention, the floating base comprises a first edge area and a second edge area on at least one side thereof, which first edge area includes an angle of 30° - 60° with the horizontal, and which second edge area includes an angle of 10° - 30° with the horizontal. The two edge areas form an artificial beach that gradually slopes down into the (sea) water from the floating base. The first edge area abuts the floating base with a first edge thereof and a first edge of the second edge area with an opposite second edge thereof. The second edge area comprises a second edge located opposite said first edge, which second edge is positioned in the (sea) water and to which the flexible mat is attached. The first edge area is also referred to as "berm" and prevents higher waves from reaching the sand on the floating base. The second edge area, which is also referred to as "plunge step", functions to slow down incoming waves and forms a natural transition to the (sea) water. Preferably, one of the two edge areas, or both edge areas, is/are reinforced so as to prevent the aforesaid erosion of sand and sediment movements. The traditional process of depositing large amounts of sand collected elsewhere, for example for replacing sand washed from the artificial beach by a heavy storm, is no longer necessary in that case. The present invention therefore provides a low- maintenance, comfortable, artificial beach provided with fans in all kinds of gradations, sorts and colours, which makes the artificial beach look natural.
The invention also relates to an artificial beach according to the invention, wherein the floating base is made up of a number of coupled-together base elements, each base element being made up of a number of floating blocks at least substantially made of expanded polystyrene, also referred to as "EPS" or "styropor" in practice, which are joined together under pre-tension, and rigid plates at least substantially made of concrete. In other words, the floating base is formed in accordance with the present inventors' European patent publication No. 1 710 356. The content of said patent publication is to be considered incorporated herein, therefore. The present invention is not limited to the makeup of the floating base, however, so that it is also possible within the framework of the present invention to use floating bases different from that described in the aforesaid European patent publication.
The invention will now be explained in more detail with reference to figures illustrated in a drawing, in which figures 1 and 2 schematically show an artificial beach according to a preferred variant of the invention in perspective view and in cross-sectional view, respectively.
The two figures show an artificial beach (1) built up of a floating base (2) on which sand has been deposited, and of a flexible mat (3) of PVC or another plastic material which extends partially under the sea water from the floating base (2) to a floating body (4) located some distance from said floating base (2) for forming a swimming zone (5) of bowl- shaped cross-section therebetween. The floating base (2) is made up of a number of coupled-together base elements (not shown) , each base element being made up of a number of floating blocks at least substantially made of expanded polystyrene, which are joined together under pre-tension, and concrete plates. Reference is made to the aforesaid European patent publication No. 1 710 356 of the present inventors. The floating base (2) comprises a first edge area (6) and a second edge area (7), which are both reinforced. The first edge area (6) includes an angle of about 45° with the horizontal, whilst the second edge area (7) includes an angle of about 25° with the horizontal. The two edge areas (6, 7) form an artificial beach that slopes down into the (sea) water. As the figures show, the first edge area (6) abuts the floating base (2) with a first edge (8) thereof and a first edge (10) of the second edge area (7) with an opposite second edge thereof. The second edge area (7) in turn comprises a second edge (11) located opposite said first edge (10), which second edge (11) is positioned in the (sea) water and to which the flexible mat (3) is attached. The flexible mat (3) is furthermore attached to coupled- together tube segments (12) . Said tube segments (12) are internally weighted so as to ensure that the tube segments will float just below the water surface. The tube segments (12) may be jointly fitted with a net that extends downwards towards the seabed, which functions to prevent swimmers getting under the tube segments (12) from the swimming zone. A layer of sand has been deposited on the flexible mat (3) so as to make the whole look as naturally as possible.
It will be understood that the present artificial beach can be readily transported and that it can be transported and used "independently" of any existing shore or bank.
With reference to figure 1, the floating base (2), the flexible mat (3) and the floating body (4) are also referred to as "beach face", "runnel" and "floating tube", respectively. The two edge areas (6, 7) are in that case referred to as "berm" and "plunge step", respectively, whilst the first edge (8) and the second edge (9) are also called "ridge beach face/berm" and "ridge berm/plunge step", respectively .
The invention is not restricted to the embodiments indicated herein, but it also extends to other preferred variants that fall within the scope of the appended claims.

Claims

1. An artificial beach comprising a floating base on which a beach material, such as sand, has been deposited so as to create said beach, characterised in that the artificial beach comprises a flexible match, which extends at least partially under water from at least one side of the floating base to a floating body disposed further on so as to form a swimming area therebetween.
2. An artificial beach according to claim 1, wherein the flexible mat is at least substantially made of a flexible plastic material.
3. An artificial beach according to claim 2, wherein said flexible plastic material is selected from the group consisting of a rubber material and a foam material.
4. An artificial beach according to claim 1, 2 or 3, wherein the flexible mat has a bowl-shaped cross- section .
5. An artificial beach according to any one of the preceding claims 1 - 4, wherein a layer of sand is disposed on the flexible mat.
6. An artificial beach according to any one of the preceding claims 1 - 5, wherein the buoyancy of the floating body is such that an upper side of the floating body is level with the water surface.
7. An artificial beach according to any one of the preceding claims 1 - 6, wherein the floating body is provided with a downwardly extending safety net at a bottom side thereof.
8. An artificial beach according to any one of the preceding claims 1 - 7, wherein said floating body is tubular in shape.
9. An artificial beach according to any one of the preceding claims 1 - 8, wherein the floating base comprises a first edge area and a second edge area on at least one side thereof, which first edge area includes an angle of 30° - 60° with the horizontal, and which second edge area includes an angle of 10° - 30° with the horizontal.
10. An artificial beach according to any one of the preceding claims 1 - 9, wherein the floating base is made up of a number of coupled-together base elements, each base element being made up of a number of floating blocks at least substantially made of EPS, which are joined together under pre-tension, and rigid plates at least substantially made of concrete.
PCT/NL2008/050648 2007-10-23 2008-10-14 Artificial beach WO2009054717A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2000951A NL2000951C1 (en) 2007-10-23 2007-10-23 Artificial beach.
NL2000951 2007-10-23

Publications (1)

Publication Number Publication Date
WO2009054717A1 true WO2009054717A1 (en) 2009-04-30

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Application Number Title Priority Date Filing Date
PCT/NL2008/050648 WO2009054717A1 (en) 2007-10-23 2008-10-14 Artificial beach

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WO (1) WO2009054717A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109538399A (en) * 2018-11-21 2019-03-29 江苏科技大学 A kind of poly- wave refraction multistage wave lens system of floatation type
US11773552B2 (en) 2021-10-07 2023-10-03 Joao Carlos Gomes De Oliveira Process of implementation of artificial beach of running water for recreation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102071821A (en) * 2010-12-30 2011-05-25 明达实业(厦门)有限公司 Connection device for swimming pool and electrical product

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2057358A (en) * 1935-04-15 1936-10-13 Edwin Bagnall Submergible carpet
US4201495A (en) * 1977-06-13 1980-05-06 Paul Preus Protected aquatic sports area
DE3336352A1 (en) * 1983-10-06 1985-04-18 Dynamit Nobel Ag, 5210 Troisdorf Floatable person-bearing island for open-air swimming pools or the like
JPH0328406A (en) * 1989-06-27 1991-02-06 Nkk Corp Artificial beach
JPH07223584A (en) * 1994-02-08 1995-08-22 Toyo Constr Co Ltd Floating beach
DE29512173U1 (en) * 1994-07-19 1995-09-28 Kastner, Helmut F., Ing., Admont Swimming pool
EP1710356A1 (en) * 2005-03-31 2006-10-11 Dutch Docklands International B.V. Method for producing a floating base

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2057358A (en) * 1935-04-15 1936-10-13 Edwin Bagnall Submergible carpet
US4201495A (en) * 1977-06-13 1980-05-06 Paul Preus Protected aquatic sports area
DE3336352A1 (en) * 1983-10-06 1985-04-18 Dynamit Nobel Ag, 5210 Troisdorf Floatable person-bearing island for open-air swimming pools or the like
JPH0328406A (en) * 1989-06-27 1991-02-06 Nkk Corp Artificial beach
JPH07223584A (en) * 1994-02-08 1995-08-22 Toyo Constr Co Ltd Floating beach
DE29512173U1 (en) * 1994-07-19 1995-09-28 Kastner, Helmut F., Ing., Admont Swimming pool
EP1710356A1 (en) * 2005-03-31 2006-10-11 Dutch Docklands International B.V. Method for producing a floating base

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109538399A (en) * 2018-11-21 2019-03-29 江苏科技大学 A kind of poly- wave refraction multistage wave lens system of floatation type
US11773552B2 (en) 2021-10-07 2023-10-03 Joao Carlos Gomes De Oliveira Process of implementation of artificial beach of running water for recreation

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Publication number Publication date
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