WO2016110438A1

WO2016110438A1 - Flood protection system

Info

Publication number: WO2016110438A1
Application number: PCT/EP2015/081411
Authority: WO
Inventors: Susanne GMAINER; Michael Reiterer; Moritz FUCHS; Alfred STRAUSS
Original assignee: Universität Für Bodenkultur Wien
Priority date: 2015-01-08
Filing date: 2015-12-30
Publication date: 2016-07-14

Abstract

The invention relates to a flood protection system (11) for preventing a body of water from overflowing in the event of a flood level, which flood protection system comprises a foundation (36) and at least one panel (38), which is supported on the foundation (36) in such a way that at least one panel can pivot about a pivot axis (40). The panel (38) has a water retention wing (50) and a lifting wing (60), which are arranged on opposite sides of the pivot axis (40). A water chamber (70) communicates with the body of water by means of an overflow (25), the level of which defines the flood level, only if the water level (WSP) of the body of water reaches or exceeds the flood level. At least some segments of a top side (61) of the lifting wing (60) are arranged in the water chamber (70). By means of water running into the water chamber (70) via the overflow (25), hydrostatic pressure on the lifting wing (60) can be built up, which hydrostatic pressure presses the lifting wing into the interior of the water chamber (70) and thereby pivots the water retention wing (50) about the pivot axis (40) from a lowered position to a raised position.

Description

Flood Protection System

The invention relates to a flood protection system for preventing the overflow of a body of water at high water level according to the preamble of claim 1.

GB 2425559 discloses a flood protection device having a foundation and a plurality of walls mounted on the foundation which are pivotable about a pivot axis from a lowered position to a raised position and back. Each wall includes a water retention arm and an abutment lever arm disposed on opposite sides of the pivot axis. The foundation includes an abutment against which the abutment lever arm abuts when the wall is in the raised condition. The Wasserrückhaltearm faces the water, the Widerlagerhebelarm facing away from it. As the level of the water rises, the water raises the water retention arm provided with buoyancy bodies (either light material or voids and optionally external buoyancy bodies) and holds it in the upright position through the hydrostatic pressure acting on the water-facing surface of the water retention arm. When the water level drops, the water retention arm also lowers. The abutment lever arm never communicates with the water. The subject of GB 2425559 has the disadvantage that the device must be anchored with a complex foundation in the ground.

In the case of flooding, the groundwater level rises sharply in the water bed area and thus exerts a buoyancy on the foundation. Therefore, a massive foundation is required in known flood protection systems, which sometimes costly pile foundations are required. Since flood protection devices extend over many kilometers, the costly foundations bring very high costs. In addition, in the construction according to GB 2425559, the upper-side walkway or the upper-side roadway is no longer usable.

The NL 031703 C1 discloses a flood protection system with a panel which is mounted pivotably about a pivot axis on a foundation. In a water chamber, a ballast tank is disposed on the underside of a lift wing, which at high tide is flooded with water through an opening in the lift wing to permit the installation of a water containment wing. However, according to the NL 031703 Cl, the lifting wing reacts only after sufficient water has flowed into the ballast tank, which may take too long. Is the opening in the lift wing, for example, by foliage or clogged other materials, the flood protection system fails completely. In return, there may be an unwanted installation of the water retention wing in heavy rainfall.

The invention seeks to remedy the above-mentioned disadvantages of the prior art. The present invention is therefore based on the object to provide a flood protection system that is improved over the prior art, simplified and cheaper, while providing high protection and reliability in operation. The system should be suitable for autonomous activation. It is intended to prevent backflow of the foundation through the water or groundwater and thus ensure independent activation. Furthermore, the system should allow the build-up of a downward water pressure which counteracts buoyancy caused by groundwater on the foundationsole, thereby avoiding elaborate foundation solutions such as e.g. Pile foundations can be dispensed with.

The invention achieves the stated object by providing a flood protection system having the features of claim 1. Advantageous embodiments are set forth in the subclaims. The flood control system of the present invention for preventing flooding of a body of water at high water level comprises a foundation and at least one panel pivotally mounted about a pivot axis on the foundation, the panel having a water retention wing and a lifting wing disposed on opposite sides of the pivot axis. A water chamber communicates by means of an overflow, the level of which defines the flood level, only with the water when the water level of the water reaches or exceeds the high water level. The lifting wing, or the top of the lifting wing is at least partially arranged in the water chamber and through the overflow into the water chamber incoming water is a hydrostatic pressure on the lifting wing can be built, which urges the lifting wing in the interior of the water chamber and thereby the water retention wing around the pivot axis pivots from a lowered position to a raised position.

The advantages of the flood protection system according to the invention can be seen, inter alia, in the low demand for building materials and working hours. It can save significant amounts of building material in the foundation. In addition, the construction of the flood protection system according to the invention can be carried out quickly and requires only a small amount of personnel. The device according to the invention makes efficient use of the downward hydrostatic pressure of the filled water chamber to control the buoyancy of the groundwater Counterbalance counterweight. The device according to the invention is thus, despite savings in the building material, more stable than constructions known from the prior art. Expensive pile foundations can be dispensed with in the foundation of the device according to the invention in contrast to known devices. In addition, in the flood protection system according to the invention by the design of the lifting wing - ranging from slightly curved to trough-like - accelerate the activation of the flood protection system.

The protection system of the invention can protect against floods or avalanches except flood.

A method for operating the flood protection device according to the invention provides that activates the system when reaching a predefined water level independently without the use of personnel. When the water level reaches the overflow defining the critical water level, water enters the water chamber via the overflow and exerts a force on the lifting blade, which automatically raises and lifts the water retention vane from a defined force of the water in the water chamber. until the maximum raised position is reached. This is independent of the actual water level, provided that the water level has at least the level of the overflow.

In the flood protection system according to the invention, four essential operating states can be distinguished:

In a state a), the flood protection system is in the idle state or in the non-activated state (FIG. 1). In this condition, the water retention wing is approximately horizontal on a base and can be used as a walkway or driveway. The level of the water in this state is below the overflow.

In a state b) the flood protection system is in a temporary, partially activated or transitional phase (FIG. 2). This condition occurs when the level of the water reaches the overflow so that water flows into the water chamber through the overflow. Thus, the water chamber gradually fills with water, forcing the panel's lifting wing down and back, which in turn causes the water retaining wing to rise. In addition, the water retention wing releases a path covered by it in the rest position, on which the traffic can take place during flood phases. In a state c) (Figure 3), the lifting wing in the water chamber has been moved to its final position, whereby the water retaining wing has reached its maximum upright position. As shown in Fig. 3, the water level is below the upper edge of the water retention wing. The curvature of the water retention wing causes in state c) a quantity of water is partly above and behind the pivot axis. This amount of water counteracts the buoyancy of the groundwater. Furthermore, the water in the filled water chamber also counteracts the buoyancy force of the groundwater. In state c) traffic can take place unhindered on the paved road despite the flood.

A state d) occurs when the flood has fallen below the level of the flood and the water is drained from the water chamber. This leads to a lowering of the water retaining wing in its rest position (state a). If mud has penetrated the water chamber due to the flood, it may be necessary to flush the water chamber to discharge the mud, for which purge channels are provided in the water chamber. In embodiments of the invention in which the lifting wing is trough-shaped, water and optionally sludge are drained from the trough.

The back of the water chamber is lined in preferred embodiments with a (flat) sealing element and contains outlet channels with inlet openings. In preferred embodiments, the sealing element consists of an elastomeric sealing element. The sealing element prevents water from entering between the lifting wing and the rear wall and undesirably flowing into the outlet channels when the lifting wing abuts against the rear wall of the water chamber. The outlet channels, in turn, allow efficient drainage of water obstructing the pivoting process of the panel located between the lifting wing and the rear wall of the water chamber.

Preferably, the water chamber has a front wall which separates the water chamber from the water and whose upper edge forms the overflow. By doing so, the water chamber is filled with water when the level of the water reaches the overflow, and the water retaining wing comes to a standstill. The water chamber can be arranged along the water.

The lifting wing preferably closes off a section of the interior of the water chamber which faces away from the incoming water. In particularly preferred embodiments For example, the lifting bow has a trough-like structure in which incoming water quickly accumulates, which leads to a rapid and, due to the defined volume of the trough-like structure, very reliable erection of the water retention blade into its maximally upright position. The tub structure of the lift led to a faster and timely predictable activation of the flood protection system, since not the entire water chamber with water for activation must fill, but only the tub structure.

Particularly preferably, the water chamber is only partially separated from the water by the lifting fins, and the overflow is below the lifting fins. As a result of this measure, the water chamber is already partially filled with water when a defined flood level or water level is reached, and the flood protection system reacts particularly quickly when the water level rises further.

In an advantageous embodiment, the water retaining wing and the lifting fins enclose an angle of less than 180 degrees, particularly advantageously less than 90 degrees, with each other, and a buoyancy body is integrated in the lifting fuselage. This buoyant body may be formed of a cavity filled with air or other medium of lesser density than water. Upon (further) increase of the water level above the level of the predefined water level of the Hebefiügel is pressed so because of the buoyancy of the buoyant body about the pivot axis to the rear wall of the water chamber, the water retaining wing pivots particularly quickly in a raised position.

The panels of the flood protection system are preferably made of normal concrete, high strength or ultra high strength concretes, metals, e.g. Steel or aluminum., Plastics, in particular fiber-reinforced plastics.

The Wasserrückhaltefiügel is preferably curved away from the water, so that the waters can exert a Wasserauflast, which counteracts the buoyancy of the system. The panels can have a length and height of several meters. For reasons of easy transport on trucks, for example, lengths of about 2 m are recommended.

The flood protection system preferably comprises a flat foundation. The water chamber of the device according to the invention is preferably of the Flachfundierung surrounded or is conveniently formed and limited by them. The shallow foundation shields the flood protection system downwards against external influences such as groundwater. The shallow foundation preferably comprises drainage and irrigation channels.

The pivot axis of the panels is arranged above the water chamber in one embodiment of the invention. At the pivot axis are at the points of contact of panel and foundation joints and / or foundation surfaces. These hinges preferably have serrations, knobs or friction surfaces, thereby providing a robust tilting mechanism of the panel from the lying to the erected position, in which the panel is held in position throughout the rolling-tipping operation by means of the teeth, nubs or friction surfaces of the joint ,

In a preferred embodiment of the invention, the flat foundations and a foundation bed together form the foundation. The foundation bed preferably comprises materials such as concrete, reinforced concrete, UHPC, steel, metal alloys, aluminum, plastics, in particular reinforced plastics, etc. The foundation bedding provides effective protection against the penetration of groundwater and the underflow or underflow of the overall construction. In addition, their weight counteracts the buoyancy of the water. Drainage and flushing channels allow controlled discharge of water from the water chamber. The water, after the fall of high water below the height of the overflow, can be selectively drained through drainage and scavenging passages to return the water retention wing to the lowered position. Furthermore, e.g. Rain water, which has accumulated in the water chamber, drained and removed by periodic flushing dirt from the water chamber.

In the foundation design, in addition to the rinsing and drainage channels, air cushions, sealing foils or balloons can also be used in order to avoid water accumulation in intermediate spaces.

The panels of the flood protection system can be installed quickly and easily assembled with the aid of mobile cranes. The assembly process of the panels runs off by the panel elements are lifted in a vertical position in the teeth of Flachfundierung and pivoted to its lowered position. The panel elements preferably have a height defined according to the expected maximum water level, which is usually several meters. The maximum water level is the highest within the scheduled life expectancy high water level taking into account long-term readings.

The water retention wing in preferred embodiments is more than half the height of the panels, the pivot axis being the transition between the water retention loop and the lifting wing. In particularly preferred embodiments, the water retaining blade comprises between 60 and 80% of the total height of the panel, assuming substantially equal average thicknesses of the water retention blade and the lifting wing. More preferably, the water retention wing exerts without high water, i. at rest, a greater torque than acting in the opposite direction torque of the lifting wing. As a result, the Wasserrückhaltefiügel rests only by gravity in the lowered state.

To protect against contamination of the water chamber and for rapid erection movement of Wasserrückhaltefiügels closes in one embodiment of the flood protection system of Hebefiügel facing away from the incoming water portion of the interior of the water chamber.

In order to prevent water from flowing upwards through the water chamber, in a preferred embodiment of the invention, the lifting wing of the flood protection system rests against a rear wall of the water chamber facing away from the water in the raised position of the water retention rail, the sealing effect being ensured by flat sealing elements, preferably elastomeric sealing elements, can be increased. By arranged in the rear wall outlet channels, which preferably open at a Bodenoberfiäche, existing in the water chamber water that has accumulated due to rain or imperfect seal, are pressed out of the water chamber by the pivotal movement of the lifting wing.

If drainage and irrigation channels are arranged in a section of the water chamber below the overflow, the water can be drained from the water chamber after the water level has dropped below the high water level and the water retention flock can be returned to its lowered rest position. If the pivot axis of the panel is above the water chamber, there is a uniform distribution of the downward force counteracting the buoyancy by groundwater.

In a further embodiment of the flood protection system, the surface of the water retention wing in the lowered position forms a drive and / or walkway or a paved road.

For structural reasons, it is preferred that the panel is arranged so that the water retaining wing averted in the lowered state of the water and the lifting flights faces the water. As a result, flood can only reach the water chamber.

If the water-side surface of the water retention wing in the raised position at least partially inclined away from the water, optionally curved, can produce a downwardly directed hydrostatic pressure through the water to the water retention wing.

When the water-side surface of the elevator wing is curved toward the water, in the initial phase of the pivoting movement, a higher weight force can act on the elevator wing and thereby accelerate the pivotal movement.

Quick, targeted erection of the water retention wing is achieved when the lifting wing has a trough, in which runs over the overflow water flowing.

In a particularly stable, yet easily mountable design of the joints of the pivot axis, the pivot axis has a rolling surface about which the pivot axis rolls in a pivoting movement. The rolling surface and the rolling surface opposite the foundation surface preferably have complementary teeth, nubs or friction surfaces. Alternatively, the joint is designed as a hinge joint, which allows stabilization of the pivot axis.

In a further embodiment of the flood protection system, a plurality of panels are arranged next to one another, wherein adjacent panels overlap one another laterally and sealing elements, for example elastomer sealing elements, are preferably arranged in the overlapping area. While various embodiments of the present invention are described above, it should be understood that the various features may be used both individually and in any combination.

Embodiments of the invention are explained in more detail by way of example with reference to the drawings. However, the invention is not limited to these forms of execution.

FIG. 1 shows a cross section through a first embodiment of the flood protection system according to the invention.

Figure 2 shows the first embodiment of the invention in a state in which the water chamber is at least partially filled with water.

Fig. 3 shows the first embodiment of the invention in a state in which the water chamber is completely filled with water.

Fig. 4 shows the water chamber of the flood protection system according to the invention in an enlarged view.

Fig. 5 shows an embodiment according to the invention of a joint of the pivot axis of the flood protection system enlarged in cross section.

Fig. 6 shows a second embodiment of the flood protection system according to the invention in cross section.

FIG. 7 shows a plan view of a flood protection system according to the invention with a plurality of panel elements.

FIG. 8 shows a longitudinal section through the panel elements according to FIG. 7.

Fig. 9 shows a cross section through a third embodiment of the invention in one

Condition in which the water chamber is at least partially filled with water.

Fig. 10 shows a cross section through the third embodiment of the invention in one

Condition in which the water chamber is completely filled with water.

Figure 1 shows a cross section through an embodiment of the flood protection system 1 according to the invention for preventing the overflow of a body of water at high water level in cross section. The embodiment comprises a Flachfundierung 2, and a foundation bed 19, which together form the foundation 33, further outlet channels 13 with inlet openings 23 and an outlet opening and two drainage and irrigation channels 10. The flood protection system has a panel 3 which is pivotable about a pivot axis 4 is mounted on the foundation 33, wherein the panel 3 has a water retaining wing 5 and a lifting wing 6, which are arranged on opposite sides of the pivot axis 4. In practice, many panels are usually arranged side by side, as further below is described. The flood protection system comprises a water chamber 7, which communicates with the body of water by means of an overflow 24, the level of which defines the flood level, when the water level WSP of the water reaches or exceeds this flood level, the top 61 of the lifting wing 6 at least partially in the water chamber 7 is arranged and in the illustrated embodiment, a portion facing away from the incoming water portion of the interior of the water chamber 7 closes. The water chamber 7 runs along the water and is separated from the water by a front wall 9, the upper edge forms the overflow 24. By entering via the overflow 24 in the water chamber 7 water, more precisely, by the running on the water side surface of the lifting wing water a hydrostatic pressure on the lifting wing 6 is constructed (see Fig. 2), the lifting wing 6 in the interior of the water chamber 7 urges and thereby pivots the water retaining blade 5 about the pivot axis 4 from a lowered position in which it rests substantially horizontally on an edge beam 22 of a fixed path 21, into a raised position (see FIGS. 2 and 3). The panel 3 is mounted on a concrete joint with a roll-off mechanism 18, wherein the roll-off mechanism 18 has a toothing 17. The water level WSP is located in the illustration of FIG. 1 below the overflow 24, so that the lifting wing 6 does not communicate with the water. The water chamber 7 is thus not filled with water, there is no water on the water side surface. In the lowered position, the surface of the water retention wing 5 forms a drive and / or walkway 20.

Figure 2 shows the embodiment of the flood protection system of Figure 1 in a state in which the water level WSP of the water has risen above the overflow 24, whereby water has accumulated on the water side surface of the lifting wing 6 and by the force exerted on the lifting wing 6 such gravity Hebeflügel 6 in the water chamber 7 urges, causing the water chamber 7 has been partially filled with water. The lifting wing 6 pivots about the pivot axis 4 and is matched in its dimensioning on the Flachfundierung 2 that no water or at least very little water between Flachfundierung 2 and the front edge of the lifting wing 6 in the space of the water chamber 7 between the lifting wing 6 and the Rear wall 30 passes. Preferably, the space between water retention wing 5 and rear wall 30 is anhydrous. The toothing 17 of the joint 18 of the pivot axis 4 causes the panel 3 always has firm hold and a defined position even during the pivoting position 4. In Fig. 2, the panel is seen in a transient state between the lowered and maximum deployed states. Fig. 3 shows the flood protection system 1 in the state of the maximum set-up panel 3. The water chamber 7 is completely filled with water in this state. The lifting wing 6 has been pressed by the hydrostatic pressure exerted by the water in the direction of the rear wall 30 of the water chamber 7 so far that it bears against the sealing elements 11, which are arranged on the surface of the rear wall 30. As a result, the lifting wing sealingly closes the inlet openings 23 of the outlet channels 13. The fixed path 21 located under the panel 3 is exposed by the pivoting of the water retaining wing 5 and can be walked on. In Fig. 3, the clearance 28 of the path 21 is symbolized by a dashed rectangle with diagonals drawn. In FIG. 3, a maximum water level is indicated by the reference numeral 35, which is the maximum water level WSP of a flood against which the flood protection system 1 according to the invention can provide protection. In the construction of a flood protection system 1 is always to take into account the groundwater 8, which rises at high tide and a buoyancy 26 developed upward, which can take on considerable proportions and the conventional manner had to be counteracted by a correspondingly high weight of the foundation Pile foundations are often required for protection. The foundation 33 of the flood protection system 1 according to the invention, however, requires a comparatively low mass, because the water in the water chamber 7 counteracts the pressure of the groundwater 8 and develops a downward hydrostatic pressure 27. The acting from above and below, at least partially balancing pressures make it possible that the foundation 33 (Flachfundierung 2 and foundation foundation 19) is made thin, inexpensive and cost-saving. Further, since the water retaining wing 5 is preferably tilted away from the water even at maximum erected state, in particular additionally provided with a convexly curved surface seen from the direction of the water, a quantity of water forms a downward hydrostatic pressure 29, which in addition the buoyancy force 26 of the groundwater opposite. When the flood drops and the water level WSP of the water sinks below the height of the overflow 24, first the water in the water chamber 7 is maintained, whereby the panel 3 remains in its raised position. To return the panel 3 in the lowered position, the water is controlled from the water chamber 7 through the drainage and flushing channels 10 drained. These channels 10 also serve to dirt, which accumulates over time in the water chamber 7, expel by periodic rinses from the water chamber 7.

Fig. 4 shows the water chamber 7 with the lifting wing in the state of Fig. 3 is enlarged. The lifting wing 6 presses against the rear wall 30 of the water chamber or against the Elastomeric sealing elements 11. If water had accumulated in the space between the lifting wing 6 and the rear wall 30, this water was pushed out of the outlet channels 13 during the pivotal movement of the lifting yoke 6.

Fig. 5 shows the joint 18 of FIG. 4 enlarged. It is clear that the teeth 17, which are formed on the rolling surface 16 of the joint 18 and the foundation surface 15, intermesh and thereby give the flood protection system 1 a particularly high stability.

FIG. 6 shows a second embodiment of the flood protection system 1 according to the invention, which differs from the first embodiment mainly in that the lifting wing 6 forms a trough 34. The water that flows over the overflow 24 into the trough 34 of the lifting yoke 6 accumulates in the trough 34 until the weight of the water causes the lifting wing 6 to pivot so that the panel 3 straightens. This embodiment has the advantage that a rapid activation in the form of a pivoting of the panel 3 can be achieved because the tub 34 can quickly fill with water. It is thus not necessary for an erection of the panel 3, that the water chamber 7 is completely filled with water. After the fall of the flood, the water is discharged from the tub 34 through outlet openings, not shown, whereby the panel 3 turns into its rest position.

Fig. 7 shows a plan view of a flood protection system 1 according to the invention, comprising panel elements 3 arranged in series, in order to provide protection along a longer route of water. The surfaces of the panel elements 3 form at low water, i. when lowered, a sidewalk and / or a street that blends harmoniously into the landscape. The water retention wing 5 is thus walk on top and passable. FIG. 8 shows a longitudinal section through the panel elements 3 according to FIG. 7. The individual panel elements 3 project beyond each other at their mutually facing edges and form sealing surfaces at these boundary surfaces, the sealing of which can be further improved by sealing elements 32, thereby preventing water from passing through at the boundary surfaces. Ribs 31 increase the rigidity of the panels.

FIGS. 9 and 10 show a third embodiment of a flood protection system 10 according to the invention. A foundation 36 surrounds a water chamber 70, which is arranged below a pivot axis 40. The water chamber 70 is defined by the foundation 36 as well as an imaginary surface between an overflow 25 and the pivot axis 40 and is in direct communication with the body of water as soon as the water level exceeds the overflow 25 level. The level of the overflow 25 defines the flood level.

A panel 38, which is pivotally mounted about the pivot axis 40 on the foundation 36, has a water retaining wing 50 and a lifting wing 60 which are partially disposed on opposite sides of the pivot axis 40. The overflow 25 is below the lifting wing 60, wherein the lifting wing 60 is pivotable about the pivot axis 40 in the direction of the rear wall 37 of the water chamber 70. The lifting wing 60 has a buoyancy body 62. This buoyant body 62 may be formed within the lift wing 60 of a cavity filled with air or other medium of lesser density than water. In addition, the lifting wing 60 may have a tare weight 64, which assists the erection of the water retaining wing 50 from a certain angular position of the lifting wing 60.

The upper side 61 of the lifting wing 60 is arranged in sections in the water chamber 70. This is achieved in the present embodiment by the shape of the panel 38 or the spatial arrangement of lifting wings 60 and water retaining wings 50. The water retaining wing 50 and the lifting wing 60, or a cross-sectional axis 53 of the water retaining wing 50 and a cross-sectional axis 63 of the lifting wing 60, in this case enclose an angle of less than 90 degrees with each other. Thus, the panel 38 is balanced in its center of gravity about the pivot axis 40 such that the rotation about the pivot axis 40 begins as soon as a predefined water level is reached. This predefined water level can also be above the defined flood level. Until reaching this predefined water level, the panel 38 does not react, and the water retention wing 50 remains in its lowered position. This situation is illustrated in FIG. 9, whereby here the water level WSP of the water body coincides with the level of the predefined water level. The surface of the water retention wing 50 may be used as a driveway and / or walkway.

If the water level WSP of the water body exceeds the level of the predefined water level, a buoyancy force boosted by the buoyancy of the buoyant body 62 pushes the panel 38 from below towards the rear wall 37 of the water chamber 70. As a result, the panel 38 rotates about the pivot axis 40 and the water retaining wing 50 pivots in the raised position. The panel 38 is in its final raised position as soon as the lifting wing 60 abuts against the rear wall 37 of the water chamber 70. This situation is shown in FIG. The invention Flood protection system 10 thus reacts very quickly to the rising water level WSP of the water body.

In summary, the flood protection system 1 according to the invention offers the following significant advantages and features:

The flood protection system 1 is activated automatically when a critical water level is reached. Activation of the system does not require immediate human input. The water pressure developed by the rising water level on the lower part of the panel 3, i. the lifting wing 6, erects the panel 3 and provides protection against further rising water level.

The foundation design in the area of the water chamber panel system fulfills the following essential functions:

• Allow rotation of the panel in case of a flood

• Preventing the backflow of the flood protection system 1 and thus ensuring the free rotation - Activation of the pivoting action for the vertical straightening of the water retention wing of the panel.

• Construction of the downward water pressure and thus reduction of buoyancy on the foundation sole (decisive load case) - no elaborate foundation solutions (pile foundations) required.

• The foundation design in the area of the water chamber panel system also provides drainage holes or drainage channels for the controlled lowering of the panel when the water level drops and in case of rinsing to purge the water chamber.

The flood protection system 1 according to the invention also offers functions in normal water level. In particular, the panel can be used in a lying position as a promenade or makeshift roadway. This is important in densely populated areas and in areas of particular aesthetic demand. The hydraulically active flood protection system 1 is used i.a. also the development (creation of a fortified path system) of public areas and natural areas.

The slope / curvature of the water retention wing allows the activation of a water column acting down over the panel, which also acts against the buoyancy on the foundation sole. The preferred joint formation serves to ensure a robust tilting mechanism of the panel from the horizontal to the vertical position. This joint is characterized by a low resistance when erecting and laying down the panel and also offers the controlled positioning before, during and after the folding process by defined Versetzkanten (teeth). The panel is held in position throughout the rolling / tipping process by the teeth of the joint. Snap-in mandrels allow the entire vertical and horizontal load transfer.

The hydraulically active flood protection system is designed as a modular system, whereby the width of the panels (preferably approx. 1.5 to 2.5m) is adjusted to a suitable handling weight (for mounting with a mobile truck crane).

The embodiments of the invention described above are in no way to be considered as limiting. The technical features described in the embodiments can be freely combined or interchanged with each other, if this is technically and / or commercially possible and useful. For example, the shape of the panel 3, 38 and / or the spatial arrangement of lift wings 6, 60 and water retention wings 5, 50 may be designed differently to suit the water, flood level or foundations 33, 36.

Claims

Claims:

A flood control system (1) for preventing the overflow of a body of water at or above a high water level, comprising a foundation (33, 36) and at least one panel (3, 38) pivotable about a pivot axis (4, 40) on the foundation ( 33, 36), the panel (3, 38) having a water retention wing (5, 50) and a lifting wing (6, 60) at least partially disposed on opposite sides of the pivot axis (4, 40) Water chamber (7, 70) which communicates with the water by means of an overflow (24, 25) whose level defines the high water level only when the water level (WSP) of the water reaches or exceeds the high water level, wherein an upper side (61) the lifting wing (6, 60) is arranged at least in sections in the water chamber (7, 70) and by the water flowing in via the overflow (24, 25) into the water chamber (7, 70) a hydrostatic pressure or a buoyancy force on the lifting wing (6 , 60 ), which urges the lifting wing (6, 60) into the interior of the water chamber (7, 70) and thereby pivots the water retention wing (5, 50) about the pivot axis (4, 40) from a lowered position to a raised position.

2. Flood protection system according to claim 1, characterized in that the lifting wing (6, 60) at least partially closes a side facing away from the incoming water portion of the interior of the water chamber (7, 70).

3. Flood protection system according to claim 1 or 2, characterized in that the lifting wing (6, 60) in the raised position of the water retaining wing (5, 50) against a water remote from the rear wall (30, 37) of the water chamber (7, 70) ,

4. Flood protection system according to claim 3, characterized in that in the rear wall (30) at least one outlet channel (13) is arranged, wherein the outlet channel (13) preferably opens on a way (14) forming bottom surface, which is lowered at Wasserrückhalteflügel (5 ) lies under the water retention wing (5).

5. Flood protection system according to claim 3 or 4, characterized in that on the surface of the rear wall (30) of the water chamber (7) or on the rear wall (30) facing surface of the lifting wing surface sealing elements (11), preferably elastomeric sealing elements are arranged.

6. Flood protection system (1) according to one of claims 1 to 5, characterized in that the pivot axis (4, 40) over the water chamber (7, 70).

7. Flood protection system (1) according to one of claims 1 to 6, characterized in that the surface of the water retaining wing (5, 50) in the lowered position forms a driving and / or walkway (20).

8. Flood protection system (1) according to one of claims 1 to 7, characterized in that the water retention wing (5, 50) facing away from the body in the lowered state and the lifting wing (6, 60) at least partially faces the water.

9. flood protection system (1) according to one of claims 1 to 8, characterized in that the water-side surface of the water retaining wing (5, 50) in the raised position upwards at least partially inclined away from the water.

10. Flood protection system (1) according to claim 9, characterized in that the water-side surface of the water retention wing (5) is curved in the raised position upwards at least partially away from the water.

11. Flood protection system (1) according to one of claims 1 to 10, characterized in that the water side surface of the lifting wing (6) is curved towards the water.

12. Flood protection system (1) according to one of claims 1 to 11, characterized in that the pivot axis (4) has a rolling surface (16) about which the pivot axis (4) rolls in a pivoting movement on a foundation surface (15).

13. Flood protection system (1) according to claim 12, characterized in that the rolling surface (16) and the foundation surface (15) have complementary teeth (17), nubs or friction surfaces.

14. Flood protection system (1) according to one of claims 1 to 13, characterized in that the pivot axis (4) is integrated in a hinge joint.

15. Flood protection system (1) according to one of claims 1 to 14, characterized in that a plurality of panels (3, 38) are arranged side by side, wherein adjacent panels (3, 38) overlap each other laterally and preferably in the overlapping region of at least one panel (3, 38), a sealing element (32), preferably an elastomeric sealing element, is arranged.

16. Flood protection system according to one of claims 1 to 15, characterized in that the water chamber (7) from the water through a front wall (9) whose upper edge forms the overflow (24), is separated.

17. Flood protection system according to one of claims 1 to 16, characterized in that in a below the overflow (24) lying portion of the water chamber drainage and flushing channels (10) are arranged, the drain capacity is preferably less than the water supply capacity of the overflow (24) ,

18. Flood protection system (1) according to claim 17, characterized in that the lifting wing (6) forms a controllably emptying trough (34), enters the running over the overflow water.

19. Flood protection system according to one of claims 1 to 15, characterized in that the lifting wing (60) has a buoyancy body (62).

20. flood protection system (1) according to claim 19, characterized in that the buoyant body (62) within the lifting wing (60) is arranged and is preferably formed of a filled with air or other medium with a lower density than water cavity.

A flood protection system (1) according to claim 19 or 20, characterized in that a cross-sectional axis (53) of the water retention wing (50) and a cross-sectional axis (63) of the lift wing (60) are at an angle of less than 180 degrees, preferably less than 90 degrees to include each other.

22. Flood protection system (1) one of claims 19 to 21, characterized in that the overflow (25) below the lifting wing (60) is arranged.

23. Flood protection system (1) one of claims 19 to 22, characterized in that the lifting wing (60) has a tare weight (64).