AT526639B1 - protection system - Google Patents

Abstract

A protection system comprising at least one foundation part (1) and at least one protective wall element (2) pivotably mounted thereon via a hinge arrangement (3), wherein the protective wall element (2) can be pivoted from an inactive position, in particular a lying position, into an active position, in particular an erected position, wherein the hinge arrangement (3) is designed such that the protective wall element (2) in the inactive position terminates substantially uninterruptedly, preferably substantially flush with the foundation part (1), wherein the hinge arrangement (3) is designed as a multi-joint hinge, in particular as a multi-joint cup hinge, wherein the hinge arrangement (3) is designed as a cup hinge with four joints (5a, 5b, 5c, 5d), wherein two first joints (5a, 5b) are arranged on the protective wall element (2) and two second joints (5c, 5d) are arranged on the foundation part (1) or on a fitting (4) connected to the foundation part (1), and wherein the Joints are elastically connected via spring elements, in particular leaf springs.

Description

Description

PROTECTION SYSTEM

[0001] The invention relates to a protection system comprising at least one foundation part and at least one protective wall element pivotably mounted thereon via a hinge arrangement. The protective wall element can be pivoted from an inactive position, in particular a lying position, to an active position, in particular an erected position.

[0002] Such protection systems are known from the prior art. They are used to protect individual houses or larger areas from the effects of flooding. It is also known to use such protection systems for alternative purposes, particularly for property protection. For this purpose, protective walls are erected in the event of imminent danger, which act as a barrier, particularly for masses of water. Due to their height, such protection systems allow, for example, a significant rise in the water level of a flooded body of water before the floodwater can penetrate into areas where, for example, property damage could occur.

[0003] For example, JP2007308936A relates to a watertight door device for houses, JP 2012036723 A and JP 2004353236 A relate to foldable water protection devices, JP H1018678 A and EP 1726717 A2 show hinge assemblies for watertight barriers, JP H1150437 A discloses a device for erecting a watertight door, CN 209891162 U relates to a hydraulically erectable water protection device, DE 9112128 U1 shows a liquid-tight door, WO 2018104555 A1 discloses a foldable hardtop garage for motor vehicles.

[0004] Since there is often little time between the forecast and the occurrence of a flood, such protection systems are usually permanently installed directly in locations with an increased flood probability and are normally stored in an inactive position to save space. For this purpose, the protective wall is placed, for example, in a depression in the ground and can be easily and quickly erected and moved into its active position when needed. Areas formed by inactive protective walls can often also be used as footpaths or roadways.

[0005] One problem with such protection systems is that, in the inactive position, they require a channel in front of the base of the protective wall to enable the protective wall to be raised into the active position. When the protective wall is raised, its base folds into the channel. This channel usually forms a continuous gutter and is normally closed, for example, with a grating, so that a continuous area is created for use as a walkway or roadway. Wire ropes and/or screw connections prevent the grating from being moved by pedestrians, vehicles, or vandalism. In order to raise the protective wall, the grating must first be removed or folded away.

[0006] Such protection systems, with a channel and grid in front, have many disadvantages. First, removing or folding the grid before the barrier can be erected wastes valuable time. In addition, material such as loose chippings, leaves, and other debris can penetrate the grid into the channel and prevent the barrier from being fully erected into its active position. Similarly, snow and water that has penetrated and frozen in the channel can also prevent the barrier from being erected.

[0007] The combined dismantling of the grating and the necessary cleaning of the sewer can be so laborious that the barrier cannot be erected in time when needed, and the protection system fails. If the grating and barrier are normally used as a roadway, heavy vehicles such as tractors and/or trucks can cause the grating to deform and/or become jammed in the sewer. This can delay or even prevent erection if necessary.

N hs AT 526 639 B1 2025-04-15

8 m above sea level

[0008] The object of the present invention is to solve these and other problems and to provide an improved protection system.

[0009] These and other objects are achieved according to the invention by a protection system according to claim 1.

[0010] In a protection system according to the invention, the hinge arrangement pivotally connecting the protective wall element to the foundation part is designed such that, in the inactive position, the protective wall element is substantially flush with the foundation part. Preferably, the protective wall element can be substantially flush with the foundation part in the inactive position.

[0011] In this context, "uninterrupted" refers to a situation in which there is no significant gap between the foundation part and the protective wall element. For example, the remaining gap may be less than 5 mm, 3 mm, or 1 mm. Likewise, "flush" refers to a situation in which the height difference between the elements is less than 5 mm, 3 mm, or 1 mm.

[0012] According to the invention, the hinge assembly is designed as a multi-joint hinge. In particular, the hinge assembly can be designed as a multi-joint cup hinge. A multi-joint hinge allows the protective wall to be predefined in a predetermined movement sequence between the active and inactive positions. A cup hinge enables a particularly space-saving arrangement of the joints, which are arranged in the hinge cup in the inactive position.

[0013] According to the invention, the hinge arrangement is designed as a cup hinge with four joints. Two first joints are arranged on the protective wall element, and two second joints are arranged on the foundation part.

[0014] Alternatively, it is provided that two first joints are arranged on the protective wall element and two second joints are arranged on a fitting connected to the foundation part. Each first joint is elastically connected to a second joint via a spring element, in particular a leaf spring.

[0015] Such an arrangement of the joints of the hinge arrangement enables the protective wall element to be pivotally connected to the foundation part via connecting means, in particular spring elements, preferably leaf springs. Such a hinge arrangement with elastically deformable connecting means makes it possible to specify a specific movement sequence for the protective wall. In this movement sequence, the protective wall element is first lifted away from the foundation part at the beginning of the pivoting process and is pushed back towards the foundation part at the end of the pivoting process. In the active and inactive positions, the protective wall element is thus in surface contact with the foundation part. During the pivoting process, the movement sequence specifically specified by the hinge arrangement ensures that the protective wall element does not rub against the foundation part.

[0016] According to the invention, it can be provided that the fitting in the inactive position is at least partially arranged in a recess of the protective wall element or has penetrated into it. This has the effect that a particularly space-saving construction of the protective system is made possible.

[0017] According to the invention, the foundation part can have a recessed receiving area. In particular, the receiving area can be designed to positively receive a front-end base area of the protective wall element in the inactive position. This allows a contact zone between the foundation part and the protective wall element to be enlarged.

[0018] According to the invention, the protection system can be provided with a seal. The seal can be arranged at least partially between that region of the protective wall element which, in the active position, is in contact with the foundation part and the foundation part. The seal can also be arranged at least partially between that region of the protective wall

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Sr 'hes AT 526 639 B1 2025-04-15

elements, which in the inactive position is in contact with the foundation part, and the foundation part. This prevents water from entering and/or penetrating between the foundation part and the protective wall element.

[0019] Optionally, it can be provided that the seal is arranged on the protective wall element, in particular in the base region of the protective wall element. Optionally, it can also be provided that the seal is arranged on the foundation part, in particular in the receiving region. Furthermore, it can be provided that the seal is arranged partly on the protective wall element and partly on the foundation part. According to the invention, it can be provided that the seal extends over the frontal base region and an adjoining lower portion of the rear side of the protective wall element. This allows a maximum sealing effect along the contact zone between the protective wall element and the foundation part to be achieved in the inactive position.

[0020] Alternatively, the seal can also be provided to extend over the horizontal and the adjacent vertical portion of the receiving area of the foundation part. This allows a maximum sealing effect to be achieved along the contact zone between the protective wall element and the foundation part of an alternative embodiment in the inactive position.

[0021] According to the invention, the seal can be a detachable or non-detachable part of the protective system. The seal can preferably be cast into the protective wall element and/or the foundation part, or pushed into the protective wall element and/or the foundation part. This means that the seal can always be connected to the protective system, if necessary, and can remain on the protective system, especially in the inactive position. Furthermore, such an arrangement allows the protective wall element to be erected without having to attach or reposition seals.

[0022] Optionally, it can be provided that the seal is arranged on the protective wall element in a detachable or non-detachable manner. The seal can preferably be cast into the protective wall element or inserted into the protective wall element. Alternatively, it can also be provided that the seal is arranged on the foundation part in a detachable or non-detachable manner. The seal can preferably be cast into the foundation part or inserted into the foundation part.

[0023] According to the invention, it can be provided that the foundation part has a projection in the receiving area, which in the active position rests against the protective wall element. In particular, it can be provided that the projection is manufactured independently of the foundation part. In particular, it can be provided that such a separately manufactured projection is particularly preferably detachably connected to the foundation part. In particular, it can be provided that cavities between the foundation part and the protective wall element are thereby closed. This enables better contact between the protective wall element and the foundation part.

[0024] Additionally, in the active position, no material can penetrate into the cavity between the protective wall element and the foundation section. This minimizes cleanup work following a flood. Furthermore, the projection allows the protective wall element to be held more securely in its inactive position.

[0025] Optionally, the projection may have contact zones with the protective wall element in its active and/or inactive position. Optionally, the projection may have seals in contact zones. Optionally, the seals may extend entirely or partially over the contact zones, in particular over a vertical contact zone.

[0026] Optionally, the projection may be provided as a separate part and then detachably connected to the foundation part. This allows for simplified production of the overhang formed by the projection compared to the production of a foundation part with an integrated projection.

N hs AT 526 639 B1 2025-04-15

8 m above sea level

[0027] Optionally, the projection may be used to plant vegetation around the protection system and thus, in particular, to better integrate the protection system into the landscape. In particular, the projection may include a seating area and/or include and/or form a container that can be used, for example, as a flowerpot or planter.

[0028] According to the invention, it can be provided that the protective wall element can be displaced in the active position such that a cavity between the foundation part and the protective wall element can be enlarged. It can also be provided that a cavity between the foundation part and the protective wall element can be reduced. In particular, it can be provided that a cavity between the foundation part and the protective wall element can be substantially avoided.

[0029] Enlarging a cavity between the foundation section and the protective wall element facilitates cleaning of the cavity following a flood. Reducing the size or substantially eliminating the cavity prevents material from penetrating the cavity during a flood, thus reducing or completely eliminating post-flood cleaning work.

[0030] According to the invention, the fitting can comprise a foundation fitting attached to the foundation part and a hinge fitting movably arranged on the foundation fitting. The hinge fitting can be movable in at least one direction relative to the foundation fitting. In particular, the hinge fitting can be movable relative to the foundation fitting in two directions, and particularly preferably in three directions. This allows the position of the hinge fitting relative to the foundation fitting and thus the position of the protective wall element relative to the foundation part to be changed.

[0031] According to the invention, it can be provided that the hinge fitting is displaceable relative to the foundation fitting in such a way that an adjustment of the position of the base area of the protective wall element in the receiving area is possible. In particular, it can be provided that a precisely fitting, in particular essentially uninterrupted, connection between the foundation part and the protective wall element can be realized. This has the effect that the gap between the foundation part and the protective wall element in its inactive position can be minimized during assembly. Furthermore, it allows the protective wall element to be mounted in the inactive position essentially flush and therefore in a stepless transition to the foundation part.

[0032] According to the invention, it can be provided that a support beam, which runs in particular obliquely to the foundation part, secures the protective wall element in its active position. It can be provided that the support beam is designed in particular as a telescopic support beam and is preferably connected in an articulated manner to the foundation part and the protective wall element. The support beam increases the stability of the protection system, in particular with regard to mechanical loads on a protective wall element in the event of flooding. Furthermore, the design as a telescopic support means that the support beam does not have to be operated separately when erecting, but only needs to be locked in its length, since it automatically extends telescopically when the protective wall element is erected.

[0033] If necessary, it can be provided that the telescopic support extends independently by an electric or hydraulic drive and thus at least supports the pivoting of the protective wall element.

[0034] According to the invention, several protective wall elements can be arranged in a row to form a continuous protective wall, each of which has a seal on at least one side wall. Forming a protective wall from lined-up protective wall elements results in the formation of a protective wall that is heavy and stable overall, yet easy to operate due to its relatively lightweight protective wall elements. Seals between the individual protective wall elements result in the formation of a tight protective wall.

[0035] In particular, it can be provided that the protective wall elements form a positive overlap. An overlap or leaf connection between the protective wall elements results in increased stability of the protective wall and the protection system. At the same time, a leaf connection—particularly compared to a tongue-and-groove connection—can ensure that the protective wall elements cannot mutually block each other during erection.

[0036] The invention further relates to the use of a protection system according to the invention as flood protection, building protection, property protection, or for forming a retention basin. By activating a protection system according to the invention when necessary, areas on one side of a protective wall can be protected from hazards on the other side. In the event of a flood, such a protection system can, for example, prevent water from overflowing its banks. It can also be used at the entrances to buildings. This can prevent floodwater from entering a building equipped with a protection system according to the invention. Other natural hazards, for example storms, snow, mudslides, or avalanches, can also be averted with a protection system according to the invention.

[0037] Likewise, a protection system according to the invention can be used for property protection to erect barricades that prevent the undesired entry of vehicles and/or people into areas or buildings to be protected. The use of a protection system according to the invention to form retention basins can also be provided. Thus, a protection system surrounding a facility, such as a power plant or an industrial plant, can prevent the escape of potentially hazardous substances in the event of an accident or defect by forming retention basins. The use of such retention basins as part of a protection system for flood protection can also be provided.

[0038] In all embodiments, it can be provided that a protective system according to the invention comprises parts made of a hardenable casting compound, in particular concrete. In particular, it can be provided that a foundation part and/or a protective wall element is made of a hardenable casting compound, in particular concrete or reinforced concrete. Optionally, it can also be provided that a seal is cast into a protective wall element.

[0039] Further features of the invention emerge from the patent claims, the embodiments and the following figures.

[0040] The invention will now be explained in more detail using exemplary embodiments. They show:

[0041] Fig. 1a-16 schematic sectional views of a first embodiment of a protection system according to the invention in different positions;

[0042] Figs. 2a - 2° are schematic sectional views of a second embodiment of a protection system according to the invention in different positions;

[0043] Fig. 3a - 3c schematic sectional views of a third embodiment of a protection system according to the invention in different positions.

[0044] Fig. 1a - 1c show schematic sectional views of a first embodiment of a protection system according to the invention in different positions. In this embodiment, the protective wall element 2 is pivotally connected to the foundation part 1 via a hinge arrangement 3. The hinge arrangement 3 comprises a fitting 4, which in the inactive position according to Fig. 1a is partially arranged in a recess 6 of the protective wall element. Furthermore, the hinge arrangement comprises two joints 5a, 5b, which are mounted in the recess 6 on the protective wall 2, and two joints 5c, 5d, which are mounted on the fitting 4. In this embodiment, pairs of joints 5a, 5c and 5b, 5d are connected to one another via leaf springs. A hinge arrangement 3 designed in this way functions like a cup hinge, with the hinge cup being formed by the recess 6.

[0045] Due to this design of the hinge arrangement 3, the structure of the protection system is particularly compact and also gives the protective wall a movement during the folding process.

The sequence shown in Fig. 1b ensures that the protective wall element 2, with its base region 8, is in contact with the receiving region 7 of the foundation part 1 in the inactive position shown in Fig. 1a and in the active position shown in Fig. 1c. In the inactive position, a gap between the foundation part 1 and the protective wall element 2 is essentially avoided. In contrast, in the active position, a gap remains between the foundation part 1 and the protective wall element 2.

[0046] Figs. 2a-2f show schematic sectional views of a second embodiment of a protective system according to the invention in different positions. Figs. 2b, 2c, 2d show schematic sectional views of an adjustable hinge arrangement of the second embodiment of a protective system according to the invention.

[0047] In this embodiment, the protective wall element 2 is pivotally connected to the foundation part 1 via a hinge assembly 3. The hinge assembly 3 comprises a fitting 4, which, in the inactive position according to Fig. 1a, is partially arranged in a recess 6. In this embodiment, the fitting 4 is made up of several parts to allow for mobility in the mounting of the protective wall element 2 relative to the foundation part 1.

[0048] This mobility is achieved in that the fitting 4 comprises a foundation fitting 12 which is connected to the foundation part 1 and a hinge fitting 13 which is movably attached to the foundation fitting 12 via threaded rods.

[0049] In Fig. 2b, the foundation fitting 12 is shown in a section through the plane A-A in Fig. 2a. According to Fig. 2b, the foundation fitting 12 has elongated holes for adjustment in a first direction.

[0050] Fig. 2c shows hinge fitting 13 and foundation fitting 12 based on a section through plane B-B of Fig. 2a. A section along plane C-C of Fig. 2c provides a representation of hinge fitting 13 as in Fig. 2d. According to Fig. 2d, hinge fitting 13 has elongated holes for adjustability in a second direction orthogonal to the first direction. Such elongated holes in foundation fitting 12 and hinge fitting 13 allow adjustment of the fitting or hinge arrangement in two directions. Furthermore, hinge fitting 13 is also height-adjustable relative to the foundation part. By connecting foundation fitting 12 and hinge fitting 13 by means of threaded rods, adjustability of the fitting or hinge arrangement in a third direction is achieved.

[0051] Furthermore, the hinge arrangement comprises two joints 5a, 5b, which are mounted in the recess 6 on the protective wall 2, and two joints 5c, 5d, which are mounted on the fitting 4. In this embodiment, pairs of joints 5a, 5c and 5b, 5d are connected to each other via leaf springs.

[0052] A hinge arrangement 3 designed in this way functions as a cup hinge, with the recess 6 forming the hinge cup. This design of the hinge arrangement 3 makes the structure of the protective system particularly compact and, in addition, prescribes a movement sequence for the protective wall element 2 during the folding process as shown in Fig. 2e, which ensures that the protective wall element 2 is in contact with the receiving area 7 of the foundation part 1 with its base region 8 in the inactive position as shown in Fig. 2a and in the active position as shown in Fig. 2f.

[0053] In this embodiment, a seal 10 is attached in the foot area 8 and in the adjoining lower part area 9 of the rear side of the protective wall element 2.

[0054] Figs. 3a - 3c show schematic sectional views of a third embodiment of a protective system according to the invention in different positions. In this embodiment, the protective wall element 2 is pivotally connected to the foundation part 1 via a hinge assembly 3. The hinge assembly 3 comprises a fitting 4, which, in the inactive position according to Fig. 3a, is partially arranged in a recess 6.

[0055] In this embodiment, the fitting 4 is again made up of several parts and allows the protective wall element 2 to move relative to the foundation part 1. This movement

This is achieved by the fitting 4 comprising a foundation fitting 12, which is connected to the foundation part 1, and a hinge fitting 13, which is movably attached to the foundation fitting 12 via threaded rods. The structure, function, and adjustability of the fitting 4 are analogous to those in Figs. 2a-2f.

[0056] Furthermore, the hinge arrangement comprises two joints 5a, 5b, which are mounted in the recess 6 on the protective wall 2, and two joints 5c, 5d, which are mounted on the fitting 4. In this embodiment, pairs of joints 5a, 5c and 5b, 5d are connected to each other via leaf springs.

[0057] A hinge arrangement 3 designed in this way functions as a cup hinge, with the recess 6 forming the hinge cup. This design of the hinge arrangement 3 makes the structure of the protective system particularly compact and, in addition, provides the protective wall with a movement sequence as shown in Fig. 3b during the folding process, which ensures that the protective wall element 2, with its base region 8, is in contact with the receiving region 7 of the foundation part 1 in the inactive position as shown in Fig. 3a and in the active position as shown in Fig. 3c.

[0058] In this embodiment, a projection 11 projects beyond the receiving area 7. This projection 11 holds the protective wall element 2 in its inactive position according to Fig. 3a in the receiving area. In the active position according to Fig. 3c, the projection 11 is in contact with the upper side of the protective wall element 2 and thus closes a cavity in the region of the receiving area 7.

[0059] In this embodiment, a seal 10 is mounted in the base region 8 and in the adjacent lower portion 9 of the rear side of the protective wall element 2. This positioning of the seal 10, in combination with the movement sequence predetermined by the hinge arrangement 3, ensures that the seal 10 can always be connected to the protective wall element 2 and, in particular, can remain in the inactive position on the protective wall element 2. Furthermore, such an arrangement allows the protective wall element 2 to be erected without having to attach or reposition seals 10.

[0060] Furthermore, the embodiment has a support beam 14 in the form of an inclined support, which is articulated to the foundation part 1 and the protective wall element 2. In this embodiment, the support beam 14 is designed as a telescopic support. Such a telescopic support extends automatically when the protective wall element 2 is erected according to Fig. 3b. The support beam 14 is stowed in a space-saving manner in the inactive position according to Fig. 3a and stabilizes and supports the protective wall element 2 in its active position according to Fig. 3c.

[0061] The invention is not limited to the present embodiments, but encompasses all protective systems within the scope of the following patent claims. In particular, the invention is not limited to embodiments in which a receiving area is provided in the foundation part, which serves as a contact zone with the protective wall element. The contact zone can also be shaped differently, for example, as a flat surface. Nor is the invention limited to embodiments with adjustable hinge arrangements. The invention is also not limited to protective systems with parts made of a hardenable casting compound, in particular concrete.

LIST OF REFERENCE SYMBOLS

1 foundation part

2 Protective wall element 3 Hinge arrangement 4 Fitting

5a, 5b, 5c, 5d joint

6 Recess

7 Recording area

8 Foot area

9 sub-area

10 Seal

11 lead

12 Foundation fitting 13 Hinge fitting 14 Support beam

Claims (13)

Patent claims 1. A protection system comprising at least one foundation part (1) and at least one protective wall element (2) pivotably mounted thereon via a hinge arrangement (3), wherein the protective wall element (2) can be pivoted from an inactive position, in particular a lying position, into an active position, in particular an erected position, wherein the hinge arrangement (3) is designed such that the protective wall element (2) in the inactive position terminates substantially uninterruptedly, preferably substantially flush with the foundation part (1), wherein the hinge arrangement (3) is designed as a multi-joint hinge, in particular as a multi-joint cup hinge, characterized in that the hinge arrangement (3) is designed as a cup hinge with four joints (5a, 5b, 5c, 5d), wherein two first joints (5a, 5b) are arranged on the protective wall element (2) and two second joints (5c, 5d) on the foundation part (1) or on a fitting (4) connected to the foundation part (1). are arranged and wherein the joints are elastically connected via spring elements, in particular leaf springs. 2, Protection system according to claim 1, characterized in that the fitting (4) in the inactive position is arranged at least partially in a recess (6) of the protective wall element (2), which forms the hinge cup of the cup hinge. 3. Protection system according to one of claims 1 to 2, characterized in that the foundation part (1) has a recessed receiving area (7) for the positive reception of a frontal foot area (8) of the protective wall element (2) in the inactive position. 4. Protection system according to one of claims 1 to 3, characterized in that the protection system has a seal (10) which is arranged at least partially between that region of the protective wall element (2) which is in contact with the foundation part (1) in the active position and/or in the inactive position, and the foundation part (1). 5. Protection system according to claim 4, characterized in that the seal (10) extends over the frontal foot region (8) and an adjoining lower partial region (9) of the rear side of the protective wall element (2). 6. Protection system according to claim 4 or 5, characterized in that the seal (10) is a detachable or non-detachable part of the protection system, wherein the seal (10) is preferably cast into the protective wall element (2) and/or into the foundation part (1) or is pushed into the protective wall element (2) and/or into the foundation part (1). 7. Protection system according to one of claims 3 to 6, characterized in that the foundation part (1) in the receiving area (7) has a projection (11), in particular a separately manufactured projection (11), which is particularly preferably detachably connected to the foundation part (1), which in the active position rests against the protective wall element (2) so that cavities between the foundation part (1) and the protective wall element (2) are closed. 8. Protection system according to one of claims 1 to 7, characterized in that the protective wall element (2) is displaceable in the active position such that a cavity between the foundation part (1) and the protective wall element (2) can be enlarged, reduced or substantially avoided. 9. Protection system according to claim 8, characterized in that the fitting (4) has a foundation fitting (12) fastened to the foundation part (1) and a hinge fitting (13) movably arranged on the foundation fitting (12), wherein the hinge fitting (13) is movable in at least one direction, preferably in two directions and particularly preferably in three directions with respect to the foundation fitting (12). 10. Protection system according to claim 9, characterized in that the hinge fitting (13) is displaceable relative to the foundation fitting (12) in such a way that an adjustment of the position of the foot area (8) of the protective wall element (2) in the receiving area (7) is possible In particular, that a precisely fitting, in particular essentially uninterrupted connection between the foundation part (1) and the protective wall element (2) can be realized. 11. Protection system according to one of claims 1 to 10, characterized in that a support beam (12) is provided, which runs in particular obliquely to the foundation part (1) and secures the protective wall element (2) in its active position, wherein the support beam (12) is designed in particular as a telescopic support beam and is preferably connected in an articulated manner to the foundation part (1) and the protective wall element (2). 12. Protection system according to one of claims 1 to 11, characterized in that several protective wall elements (2) are arranged in a row and form a continuous protective wall, wherein the protective wall elements (2) each have a seal (10) on at least one side wall, so that preferably a positive overlap is formed. 13. Use of a protection system according to one of claims 1 to 12 as flood protection, building protection, property protection or for forming a retention basin. 3 sheets of drawings