AT517292A2 - Transportable retention device for liquids - Google Patents

Abstract

A transportable retention device for protection against the ingress of liquids comprises a flexible membrane web (10) having a first edge (11) and a second edge (12), pull cords (20) on a liquid side of the membrane web (10) in each case in the transverse direction Membrane web (10) the first edge (11) and the second edge (12) interconnect, wherein the length of the respective pull rope (20) is smaller than the width of the membrane web (20) at the relevant point between the first and second edge ( 11, 12), and vertical struts (30) erected on the liquid side of the membrane web (10) for erecting the second edge (12) of the membrane web (10). The invention provides a very simple and inexpensive replacement for conventional protection systems. It manages with a very small number of components, has a low weight and can be compactly compacted. This allows a quick and easy setup as well as a quick and complete dismantling.

Description

description

Transportable retention device for liquids

The invention relates to a transportable retention device for liquids, which can be used as protection against approaching flooding of buildings, water closures, Dammerhöhungen and the like. In addition, this is suitable for the retention of superficial liquids such as extinguishing water and for other water management applications.

Conventional sandbag barriers, which are often used in floods, require a large personnel and logistics effort. Demountable ridge beam systems, as described for example in DE 10 20047 007 564.4, require in advance the installation of vertical supports between which, if required, dam beam elements are installed. Again, the effort is considerable. In addition, such systems are not suitable for surprising flood events where little time is available for installing protection.

A retaining device with a flexible membrane web, which has a first edge for flooding by liquid to be backed and a second edge which can be lifted off the ground, is known from DE 198 07 640 A1. At the second edge of a buoyant lifting device is arranged in the form of a hose, which serves as a float in the application and may optionally be inflated. Furthermore, the second edge is connected to a portion of the membrane web by means of a roped network. In the case of use, the hose floats up and raises the second edge. The liquid pressure applied to the erected membrane section is supported by the net. The hose makes assembly and disassembly of the known retaining device difficult. If the hose needs to be inflated, additional equipment is needed. If, on the other hand, a passive float is used, it must be dimensioned for sufficient buoyancy, so that the restraint can not be stowed compactly. This in turn suffers the transportability. Furthermore, the storage height is limited.

The invention is based on the object to provide a flexible and easily transportable retention device for liquids, which can be installed and uninstalled with little effort within a short time and which also has a simple structure, is inexpensive to produce and allows a larger storage height.

This object is achieved by a transportable retention device for liquids according to claim 1. The retaining device according to the invention comprises a flexible membrane web having a first edge for flooding liquid to be backed up and a second edge which can be raised from the ground, pull cables which connect the first edge and the second wheel to each other in the transverse direction of the membrane web on one liquid side of the membrane web is smaller than the width of the membrane web at the relevant point between the first and second edge to support a horizontally acting on an erect portion of the membrane web pressure of the liquid to be backed by the tension cables on the liquid side, as well as on the liquid side on the Membrane web erected vertical struts for erecting the second edge of the membrane web.

Such a restraint device can, if necessary, be dismantled very quickly by a few persons and completely dismantled again. In the event of flooding, the liquid to be withdrawn presses a portion of the membrane web onto the ground and thus secures it, while the pressure of the liquid acting in the horizontal direction on the erected portion of the membrane web is supported by the tension cords on the liquid side.

The membrane web including the traction cables can also be very compact collapse, so that this takes up low storage capacity. It can also be carried in emergency vehicles, for example. Furthermore, it is possible to unroll them, so that they can be easily rolled out if necessary.

Due to the vertical supports, a reliable barrier action against overcoming the retaining device can be ensured, in particular in the case of a rapid fluid increase. In addition, the vertical supports favor the installation of the retaining device. If liquid is present, a greater height of the second edge above the ground can also be achieved. In general, this results in a gain in stability.

Advantageous embodiments of the invention are the subject of further claims.

The catches of the traction ropes is preferably matched to the width of the membrane web in such a way that, when liquid is present on the membrane web, the portion of the membrane web held by the pressure of the liquid at the bottom is larger in the transverse direction than the upright portion of the membrane web. As a result, the system is self-holding in the application. In addition, this may optionally protect the substrate against ingress of liquid, which improves the stability of the retaining device.

Preferably, the width of the bottomed portion of the membrane web in the transverse direction is at least twice the erected portion.

According to a further advantageous embodiment of the invention, the ratio of the catches of the pull rope to the width of the membrane web at the relevant point between the first and second edge is greater than 0.8 and preferably greater than 0.85. This ensures that a sufficient surface for the bulging of the membrane web by the water pressure is available and the retaining device withstands the water pressure and does not slip to the side.

Furthermore, the first edge, which is flooded in the application, have means for fixing the membrane sheet on the ground to further improve the stability. In addition, this can better ensure that at a slow start of liquid this does not creep underneath the membrane web.

According to a further advantageous embodiment, the first edge has anchors for the traction cables. As a result, an optimal utilization of the membrane web is achieved in the transverse direction.

The anchorages for the traction ropes can simultaneously serve as means for ground attachment. For example, it is possible to provide for this purpose at the first edge eyelets, which serve to anchor the traction cables and for ground mounting of the membrane web. Using hooks or nails, the membrane membrane is attached to the ground. Alternatively or additionally, the first edge can also be determined by means of weights.

To further increase the stability, a seam may be provided on the second edge, in which runs a cable which can be tensioned in the longitudinal direction of the membrane web in order to further increase the stability of the retaining device.

Preferably, the vertical supports on a pedestal for broad-surface support on the membrane web, which is uninterrupted in the region of the support of the vertical supports. As a result, a very high density is achieved.

The vertical supports can be formed for this purpose, for example, conical. An embodiment in the form of rod-shaped masts with a plate-shaped base is possible.

According to a further advantageous embodiment, the second edge of the membrane web and / or the traction cables are attached to upper end portions of the vertical supports. The traction cables are thus stretched over the vertical supports in the presence of liquid, whereby stability and maximum ground height of the second edge are further increased.

It is also possible to insert the vertical supports through passage openings provided in the membrane path. The vertical supports each form a section for anchoring the floor, whereby the bottom attachment of the

Membrane membrane made or can be additionally improved. Optionally, in this case, sealing elements are provided for sealing the vertical supports against the passage openings in order to prevent the infiltration of the retaining device.

The invention will be explained in more detail with reference to embodiments shown in the drawing. The drawing shows in:

Figure 1 is a cross-sectional view of a transportable retaining device for

Liquids according to a first embodiment of the invention in use in the presence of liquid,

Figure 2 is a cross-sectional view of a portable restraint device for

Liquids according to a second embodiment of the invention in the case of application of liquid standing with an alternative vertical strut,

FIG. 3 shows a cross-sectional view of the membrane web in the folded state,

FIG. 4 shows a view of the retaining device from above in a set up state,

Figure 5 is a vertical support with integrated ground anchor, and in

Figure 6 shows a variant with additional train protection of the pull rope on the

Vertical support.

The exemplary embodiment in FIG. 1 shows a transportable retention device 1 for liquids, which can be set up and dismantled quickly and easily.

In the simplest case, the retaining device 1 comprises a flexible membrane web 10 and tension cables 20 attached thereto.

To increase the stability, vertical struts 30 can also be provided, which are arranged on the liquid side of the membrane web 10. Furthermore, fastening elements 40 may be provided for fastening the membrane web 10 to the bottom 2.

The membrane web 10 is preferably made of a heavy-duty textile fabric, which may optionally be additionally provided with a coating. It has a longitudinally extending first edge 11, which is flooded in the application by liquid, and an opposite second edge 12, which is lifted in the application of the bottom 2. Both edges 11 and 12 may be provided with a seam 13 and 14, respectively, through which runs a cable 50 and 60, which can be tensioned in the longitudinal direction of the membrane web 10.

On the membrane web 10 a plurality of tension cables 20 are fastened, which connect the first edge 11 and the second edge 12 to each other in the transverse direction of the membrane web 10. For this purpose, 12 eyelets 15 and 16 may be provided on the first edge 11 and optionally also on the second edge. An attachment of the traction cables 20 to the membrane web 10, however, can also be done in other ways.

The tension cables 20 may be formed as high-strength steel cables, plastic fiber cables or the like. It is also possible to form these band-like and to sew with the opposite edges 11 and 12.

The traction cables 20 are spaced apart in the longitudinal direction of the membrane web 10. The length of the traction cables 20 is smaller than the width of the membrane web 10 at the relevant point between the first and second edges 11 and 12. As can be seen from Figure 1, the length of the traction cables 20 is adjusted to the width of the membrane sheet 10, in the case of liquid 3 present on the membrane web 10, the portion 10a of the membrane web 10 held transversely by the pressure of the liquid at the bottom is larger in the transverse direction than the erected portion 10b of the membrane web 10. As a result, the containment content 1 is utilized by utilizing the weighting force of the liquid present held. The liquid pressure acting on the upright portion 10b is supported by the tension cords 20 on the liquid side of the membrane sheet 10, so that the containment content 1 is self-retaining when the liquid is present. The weight of the pending liquid also prevents infiltration of the membrane sheet 10th

The dimensions of the ground-held portion 10a and the traction cables 20 may in particular also be chosen so that the run-up length and traction cable lengths prevent the penetration of water into the ground by covering it sufficiently. Preferably, the width of the bottomed portion 10a of the membrane sheet 10 in the transverse direction is at least twice that of the erected portion 10b. Against this background, it is generally advantageous if the ratio of the length of the traction cable 20 to the width of the membrane web 10 at the relevant point between the first and second edges 11 and 12 is greater than 0.8 and preferably greater than 0.85 ,

In the case of an initial flooding of the first edge 11, the weight of the pending liquid may sometimes be too low to push it sufficiently against the ground 2 or ground. For this reason, it may be expedient to weight the membrane web 10 in the region of the first edge 11 with weights and / or in addition to fix it using fasteners 40 such as hooks, nails and the like on the bottom 2. For this purpose, the first edge 11 may have means 17 for fixing the membrane web 10 to the bottom 2. These devices 17 may be formed without limitation thereto, for example, as eyelets 15. When using a rope 50 in the hem 13 of the first edge 11, a determination can for example be made via this cable 50, which then serves as a fastening device 17.

The first edge 11 also has anchors 18 for the tension cables 20. For this purpose, for example, the aforementioned eyelets 15 or running in the seam 13 rope 50 may be used. However, it is also possible to provide 20 separate anchors 18 on the first edge 11 for the traction cables.

The retaining device 1 of the exemplary embodiment illustrated in FIG. 1 furthermore has vertical supports 30 erected on the membrane web 10 for spragging the second edge 12. The vertical supports 30 are thus arranged as the traction cables 20 on the liquid side of the membrane web 10. In particular, they can be set up so that they support the second edge 12 with their upper end sections 31 in each case in the region of the connection of the traction cables 20. For example, for this purpose, the upper end portion 31 of a vertical support 30 can support the associated pull cable 20 in the vicinity of the second edge 12, as shown in FIG. For this purpose, a guide groove 31a for the pull cable 20 may be provided at the upper end portion 31. When setting up the retaining device 1, the vertical supports are simply placed under the tension cables 20 to erect the second edge 12. The traction cables 20 extend in the guide grooves 31a. In the case of use occur on the traction cables 20 by the fluid pressure considerable tensile forces. These are derived via the vertical supports 30. To improve the introduction of force into the vertical supports 30, the traction cables 20 can be fixed at least in the pulling direction on the vertical supports. For this purpose, on the side facing the first edge 11 side of the vertical supports 30 may be provided on the tension cables 20 knots 21, toggle or the like, which prevent slippage of the pull cable 20 through the respective guide groove 31a.

However, the second edge 12 can also be hooked there with eyelets 16 or a running in the seam 14 cable 60 in the upper end portions 31 of the vertical supports 30, wherein the pull cable 20 is preferably again guided over the upper end portion 31. The upper end portions 31 may also be installed as a connector between the traction cables 20 and the second edge 12.

The vertical supports 30 spread the membrane web 10 in the manner shown in Figure 1 to the liquid side in a bag-like manner. In this case, a curvature 19 in the direction of the dry side of the membrane web 10 forms on the upright portion 10b of the membrane web 10 by the pressure of the pending liquid.

The vertical supports 30 also each have a base 32 for broad-area support on the membrane web 10, so that in the presence of liquid, the resulting vertical compressive forces in the vertical supports 30 are distributed over a large area by the membrane membrane 10 in the soil 2 weight distribution. In the exemplary embodiment illustrated in FIG. 1, the membrane web 10 is uninterrupted in the region of the support of the vertical supports 30. In Figure 1, a vertical support 30 is shown, which has a rod-shaped mast 33 which extends from a bottom-plate-shaped base 34 vertically upwards to the second edge 12.

However, it is also possible, the vertical supports 30 cone-shaped, for example as pylons made of plastic form, as shown by way of example in Figure 2, so that here also results in a plate-shaped base-side base 32 with large Aufstands surface. At the upper end portion 31 of such a conical pylon, a guide groove 31a may be provided for a pull rope 20.

FIG. 5 shows a modification of a vertical support 30 ', which is inserted through an opening 10c' provided in the membrane web 10 '. The through the passage opening 10c 'downwardly projecting portion 35' serves the ground anchorage. Furthermore, a sealing element 36 'for sealing the vertical support 30' against the passage opening 10c 'may be provided. This may for example be formed as a cross-sectional widening of the vertical support 30 'or as a separate elastic sleeve, which is pressed by pending liquid in sealing position.

The above-described retaining devices 1 offer a very simple and cost-effective replacement for conventional systems. They manage with a very small number of components, have a low weight and can be compact

Merge and roll up. This allows a quick and easy setup that does not require any special prior knowledge, skills, assembly equipment and fillers, as well as a quick and complete dismantling. On the dry side no support structures are needed, which could stand in the way as obstacles.

The invention has been explained in detail above with reference to various embodiments and modifications. In particular, individual technical features, which have been explained above in the context of further individual features, can be implemented independently of these as well as in combination with further individual features, even if this is not expressly described, as long as this is technically possible. The invention is therefore expressly not limited to the described embodiments and modifications, but includes all embodiments defined by the claims.

REFERENCE SIGNS LIST 1 Restraining device 2 Floor 3 Liquid 10 Membrane web 10a Section 10b held at the bottom Elevated section 11 First edge 12 Second edge 13 Hem 14 Hem 15 Eyelet 16 Eyelet 17 Device for fixing the membrane web to the ground 18 Anchoring for a pull rope 19 Curve 20 Pulling rope 21 knots 30 vertical support 31 upper end portion 31a guide groove 32 base 33 mast 34 plate-shaped base 35 'downwardly projecting portion 36' sealing element 40 fastener 50 rope 60 rope

Claims (10)

claims A liquid transportable restraint comprising: a flexible membrane web (10) having a first edge (11) for flooding by liquid to be withdrawn and a second edge (12) liftable from the ground, and pull cords (20) disposed on a liquid side of the membrane web (10) in the transverse direction of the membrane web (10) connect the first edge (11) and the second edge (12) together, wherein the length of the respective pull rope (20) is smaller than the width of the membrane web (20) at the relevant point between the first and second edges (11, 12) for supporting a pressure of the liquid to be retained in the horizontal direction on an upright portion of the membrane web (10) by the liquid side pull cords (20), characterized by on the liquid side on the membrane web ( 10) erected vertical struts (30) for erecting the second edge (12) of the membrane web (10). 2. Transportable retaining device for liquids according to claim 1, characterized in that the length of the traction cables (20) is matched to the width of the membrane web (10) that at the diaphragm web (10) pending liquid by the pressure of the liquid on Bottom portion (10a) of the membrane sheet (10) in the transverse direction is greater than the erected portion (10b) of the membrane sheet (10), wherein preferably the width of the bottomed portion (10a) in the transverse direction at least twice the upright portion (10b ) is. 3. Transportable retaining device for liquids according to claim 1 or 2, characterized in that the ratio of the length of the traction cable (20) to the width of the membrane web (10) at the relevant point between the first and second edge (11, 12) greater than 0 , 8 and preferably greater than 0.85. 4. Transportable retaining device for liquids according to one of claims 1 to 3, characterized in that the first edge (11) has means (17) for fixing the membrane web (10) on the ground. 5. Transportable retaining device for liquids according to one of claims 1 to 4, characterized in that the first edge (11) has anchors (18) for the traction cables (20). 6. Transportable retaining device for liquids according to one of claims 1 to 5, characterized in that at the first edge (11) eyelets (15) for anchoring the traction cables (20) and for fixing the bottom of the membrane web (10) are provided. 7. Transportable retaining device for liquids according to one of claims 1 to 6, characterized in that the vertical supports (30) have a base (32) for broad-surface support on the membrane web (10), which in the region of the support of the vertical supports (30) uninterrupted is. 8. Transportable retaining device for liquids according to one of claims 1 to 7, characterized in that the second edge (12) of the membrane web (10) and / or the traction cables (20) at upper end portions (31) of the vertical supports (30) are attached , 9. Transportable retaining device for liquids according to one of claims 1 to 8, characterized in that the vertical supports (10) are conical. 10. Transportable retaining device for liquids according to one of claims 1 to 8, characterized in that the vertical supports (30) through in the membrane web (10) provided Durchtrittsöffhungen (10 c ') are inserted through and each forming a portion (35') for ground anchoring and preferably further sealing elements (36 ') are provided for sealing the vertical supports (30) against the passage openings (10c').