WO2004035936A1

WO2004035936A1 - Modular structural part of a secondary dike, rolling device for a coiled structural part of a dike, and method for unwinding said coiled structural part of a dike

Info

Publication number: WO2004035936A1
Application number: PCT/EP2003/011195
Authority: WO
Inventors: Walter Wagenhuber
Original assignee: Walter Wagenhuber
Priority date: 2002-10-15
Filing date: 2003-10-09
Publication date: 2004-04-29
Also published as: AU2003280354A1; DE20320986U1; DE20216081U1

Abstract

Disclosed is a modular structural part (2) for a secondary dike, comprising at least one elongate flexible hollow element (10) which can be filled with a conveyable medium and a cover that at least partly surrounds said hollow element (10). The cover is embodied as a flexible two-dimensional network (11) that is provided with net ropes (12, 13) which run perpendicular to each other, intersect, and are connected among each other in a stable manner at least at one part of the intersections (14) of the ropes. The network (11) defines the outer shape of the structural part in a delimiting manner in the filled state of the module and is provided with a shape and mesh structure such that the network (11) forms the basis for connecting several modules (2) to each other and creating an installation which is skidproof due to static friction that counteracts gravitational forces, at least in the filled state. A rolling device receives the flexible module (2) in the form of a coil. Also disclosed is a method for unwinding the coiled module from the rolling device, according to which the conveyable charging medium is introduced into at least one module tube (10) at the outer end of the coil such that the module (2) unwinds in an at least partly automatic manner.

Description

Structure module of an auxiliary dike, rolling device for a wound dike structure and method for unwinding the dike structure winding

The invention relates to a structural module of an auxiliary dike, comprising at least one elongated flexible hollow element that can be filled with conveyable medium such as water, mud or the like, and an envelope that at least partially surrounds it and that determines the outer circumference of the structural element as a module. The invention also relates to an auxiliary dike structure consisting of at least one module, as well as to a rolling device for a wound module module and a method for unwinding the module module roll from the rolling device.

To avert flood hazards, traditional methods are still used; For example, sandbags are still used today when there is a risk of a dike breaking. Since it is particularly important with such protective measures that the devices required to erect the auxiliary dikes are transported as quickly as possible to the location where there is a risk of flooding, the logistical aspect of the problem must be taken into account in addition to the erection of the actual protective structure , namely that the elements required for auxiliary dyke construction are available in situ in sufficient quantities in good time. This is particularly problematic with sandbags, since these are usually filled with sand beforehand and therefore a large total mass has to be transported.

Avoiding this logistical problem was already the task of various efforts of the prior art, which aimed to fill the auxiliary dike elements on site. These solutions have the feature in common that flexible hollow elements are provided for the construction of the auxiliary dams, which can be stowed away well in the unfilled state and can thus be transported to the place of use, where they are then filled with a suitable load medium, for example with excess water or mud , Due to the many advantages of storing, filling and transporting tubular hollow elements, most publications on the development of auxiliary dikes deal with the use of such components. For example, DE-AI 197 54 340 describes a temporary flood protection device consisting of waterproof fabric hoses of variable formation, length and diameter, which - when filled with a suitable load medium - are arranged individually or in a row one above the other or side by side and form an auxiliary dike. These hoses have eyelets on the end faces, which allow the individual system components to be connected in the longitudinal direction (ie parallel to the desired dike line). Sewings that connect the individual tubes in parallel position have the disadvantage that they place heavy stress on the tube components at the composite zones and form weak points in the composite there.

DE AI 198 51 222 hoses running parallel to each other are known, which are surrounded by a textile covering. This bundles several of the hoses into a layer module. Higher auxiliary dike constructions can be achieved by stacking several such layers. The adhesion existing between two layers stacked one on top of the other is only very small due to the relatively smooth surface of the textile sheathing, so that the stability of an auxiliary dike constructed from such modules and exposed to considerable transverse forces is impaired; The same applies to the adhesion of the textile covering to the substrate. Each module can only be formed by a simple layer of tubes, a module of the upper layer with at least two tubes being relatively solid and a special connection between the modules of the layers not being provided. Unwanted displacements between the hoses can occur within a flat layer module, since adhesion to the textile sheathing is also insufficient. In particular when using several hoses, they can move against each other, which leads to impairment of the stability of the auxiliary dike.

DE-Al 199 51 624 describes hollow bodies for the erection of flood protection measures, which have several essentially parallel floodable hoses in their interior, which in turn are jointly covered by an outer covering are bordered. In such a hollow body system, on the one hand not the entire volume of the auxiliary dike, but only part of it, namely the hoses, is filled with the load medium, so that the auxiliary dike experiences additional buoyancy and its stability is impaired. Furthermore, such an auxiliary dike consists of only a single element of constant cross section, which is prefabricated and whose height is therefore not variable, which makes an additional raising of the auxiliary dike construction in an emergency situation difficult, if not impossible.

DE-Al 199 55 155 reproduces a device for creating an auxiliary dam, which likewise consists of a plurality of tubular hollow chambers which are connected to one another to form one layer, two or more layers being stacked one on top of the other. The fillable tubular hollow chambers within such a layer are connected to one another by means of chemical and / or thermal welding. The individual layers are connected using additional connecting means such as lashing straps and ratchets. In such an auxiliary dike system, the individual hose elements within such a layer are connected to one another in such a way that it is not possible to construct auxiliary dike structures with a small radius of curvature or on very uneven ground because the hoses in the individual layers would be closed by kinking.

In connection with a method for the rehabilitation of dikes, DE-Al - 197 46 052 proposes that an anchor be introduced into a dyke body, to which wound hoses can be attached, which, if necessary, can be rolled out and filled with water to increase the dyke quickly. The hoses should be wrapped in a wire mesh covering. The wire mesh with cross-braided wires, which typically have inherent rigidity, as such is relatively dense and smooth, and due to its internal structure, the wickerwork can only be loaded to a limited extent under locally concentrated shear force. For example, the known wire mesh covering only serves to spatially hold hoses in an outer cage-like covering, the hoses having to remain relatively small in cross section in order to obtain an adaptation to the stiffness of the mesh. As a result, the known hose arrangement is only used to increase an existing dike, while a sufficiently high and basic loads are resistant to existing auxiliary dike structure cannot be formed. Apart from this, the wire mesh covering is not suitable as a structural module, since the wire mesh forms an outwardly curved, non-conformable surface due to the considerably limited flexibility.

The aims of the invention are to provide a structural module for a quick and easy erectable auxiliary dyke while eliminating the disadvantages of the discussed prior art, the erection of which should be improved even more with particularly simple means and methods. In particular, the module or the auxiliary dyke structure should be provided with a covering which, with good transportability and easy erectability, also enables a high degree of internal stability between the hollow elements and which can also be adapted to the respective topography of the site without impairing functionality to adjust. In addition, the covering is intended to ensure secure and non-slip attachment relative to the substrate. If necessary, the auxiliary dike structure should be expandable in all three spatial directions while maintaining and ensuring stability.

The goals are achieved for a structural module in conjunction with the features mentioned at the outset in that the casing is designed as a flexible flat network which has cross-wise, intersecting network strands which are stably connected to one another at least in part of the strand crossing points, wherein the wrapping network, which defines the outer structural shape in the filling state of the module, has a shape and mesh structure, on the basis of which the network, at least in the filling state, forms the basis for the connection of several modules to one another and for a system that is non-slip due to shear forces is. With regard to an auxiliary dike structure according to the invention, it can be expediently provided that a module according to the invention already determines the dike height with its height. According to the invention, however, depending on the application, the height and, if necessary, the length of the structure can also be constructed from modules with a different number of hollow elements. Modules according to the invention are light in the unfilled state and take up only a small volume, so that they can be stored and transported in a space-saving manner. When filled, the individual modules can be easily and conclusively adjusted to the respective terrain shape height via the network, without the stability of the auxiliary dike construction as a whole thereby being impaired. Rather, with sufficient depth dimensioning, a high contact force is achieved compared to the subsurface. As such, the sheathing network has the characteristic that the net strands are fixed to one another at at least part of their crossing points in such a way that the net holds together, a dense surface structure, such as is present in a wickerwork or a woven fabric, being avoided. The network strands are typically defined at their crossing points in such a way that the network meshes which are specific to an area network are formed. This network structure has a number of advantages. In the module filling state, the hollow element or the hollow elements are enclosed and held in a particularly coherent manner by means of the mesh pattern or the resulting profile. Similarly, the network creates a kind of profile connection with the network of an adjacent module and / or with the underground. The sheathing network can be grasped at or through the mesh openings, or force can be exerted on the network at certain points without the wall of a hollow element being thereby stressed or even damaged. The flexible two-dimensional network as such has particularly high flexibility even when the network strands are relatively large in cross-section, which is at least in the order of magnitude of the flexibility of a hollow element, but in particular is considerably larger. For this reason, the network rests in the same shape against the filled hollow element, and if there is more than one hollow element, it forms a clamping surface between the hollow elements that is tangentially removed from the surface of the hollow element. Unlike a braid, the net yields to conform to a hose element, an adjacent module and / or to the surface, so that the sheathing network is the basis for both a profile connection and a conforming, shear-resistant connection in all cases. The network according to the invention is simple and inexpensive, even in a large area with a relatively low weight. The network, as is known from the type of fish nets, for example, is particularly resistant and durable even when subjected to particularly aggressive stresses from heat, light, moisture and mechanical force. The modular structure makes it easy to build and expand an auxiliary dike. The latter is particularly important if individual parts of the structure are damaged or the flood threatens to flood the upper edge. In terms of construction, no restrictions are imposed on the dimensions of a makeshift flood protection device according to the invention in normal technical thinking; at most, such considerations may arise when considering an overall portable device. Thanks to the covering that surrounds the hollow element (s) like a net stocking and defines the outer structure, the individual components can easily be arranged one above the other, next to and behind one another and, if necessary, firmly connected to one another. The modules are connected to each other either only at a few individual points or at as many locations as possible, depending on whether the auxiliary dike should be erected quickly or should be particularly stable from the start.

The mesh-like covering of the modules can advantageously be designed in such a way that its length, i.e. seen in the longitudinal direction of the building, is larger than that of the hollow elements surrounded by it, so that it projects on at least one side over the hollow elements. As a result, modules that are arranged directly behind one another in the longitudinal direction can be connected to one another in a simple manner in an auxiliary dike. For this purpose, the end of the one (first) module is inserted into the protrusion of the next (second) module that follows in the longitudinal direction and protrudes beyond the hollow elements.

The net-stocking-like form of use of the covering likewise has the result that hollow elements arranged next to one another can be displaceable within limits in the longitudinal direction, but are fixed in all other directions by means of the covering network. In contrast to rigid or directly connected hollow elements, you can therefore build auxiliary dike structures with a small radius of curvature from the modules, which are highly suitable for repairing existing, curved flood protection devices or adequate flood protection even with the most varied, e.g. B. to ensure strongly corrugated floor forms without the underlying hollow elements there- at kinking and thereby impair the stability of the overall structure. In addition, it is advantageous that the net-like covering of the modules arranged at the bottom is pressed into the softened ground by the weight of the construction, whereby counteracting shear forces in the ground area are countered by a higher static friction of the auxiliary dike, which also gives it a better stability.

The stability of the auxiliary dyke structure according to the invention is further improved by using a net-like covering which, in an advantageous embodiment of the invention, comprises longitudinal strands running parallel to the main direction of the hollow element and transverse strands running transversely thereto. Such a subdivision into strands of the network, which are on the one hand longitudinal and on the other hand transverse, preferably perpendicular to it, is particularly favorable compared to other, for example diagonally executed strand arrangements, since a force acting on the auxiliary dike from the outside acts practically exclusively in the transverse direction, so that these attacking forces do not affect the hollow elements load in the longitudinal direction and the auxiliary dike maintains its sealing effect.

Longitudinal and transverse strands at the crossing points can be used both with detachable connections by knotting, stapling, stapling or the like as well as with irreversible connection types, for example by gluing, welding or weaving. Such stable connections ensure high stability of the overall construction. As such, the flexible, light-weight network, which adapts to the spatial shape of each unfilled space-saving hollow element, is a relatively loose, inherently unstable network that is only held together by the stable crossing points.

It is advantageous to bundle more than one hollow element into a modularly usable construction unit (= structure, module) by means of a common sheathing network; this greatly simplifies the construction of a functional auxiliary dike, since both the arrangement and the connection are quick. Modules with two or three hollow elements are particularly advantageous, since on the one hand they make the installation of the auxiliary dike significantly easier, but on the other hand they are light enough that they can still be handled comfortably. In particular, three tubular hollow elements are made more compact Spatial form as modules with triangular cross-sections (of course with rounded corners) or flat next to each other in one plane.

For an auxiliary dike construction according to the invention, separate connecting strands can advantageously be provided for fastening the modules to one another, which are pulled, threaded, braided or the like into the net-like covering of the modules and, if appropriate, detachably connected to the covering.

In an embodiment according to the invention, the sheathing network comprises at least one anchoring means which engages between hollow elements adjacent in the module in such a way that network chambers are formed which enclose the hollow elements under mains voltage. The mesh chambers can advantageously be designed such that in the filled state of the hollow elements in their longitudinal extent between at least a pair of adjacent hollow elements at least one groove-like recess, for. B. is designed to intervene for a filled hollow element.

According to a further embodiment, the cladding network can be formed from a plurality of network sections which define the outer structural shape by bracing and clinging to hollow elements and which are connected to one another in the network. With this configuration, at least one guy

Network section with at least one network section spanning adjacent hollow elements can be placed around at least one hollow element and connected to a base network section, wherein the guy network section can be formed by a separate network, but also by a plurality of guy lines incorporated in the base network sections ,

The property of the flexible, lightweight network which adapts to the spatial shape of each unfilled space-saving hollow element and comes to lie flat can advantageously be used to ensure that the structural module in the unfilled state in the form of a cross-section to the hollow element Longitudinal direction axis wound winding body is kept ready. The module is particularly advantageously wound on a hub body which can be removably inserted into a rolling device. In general, a rolling device according to the invention for manipulating a structure for an auxiliary dyke comprises a hub body which is arranged between two wheels and rotatable about its axis and which receives at least one flexible, elongated, unfilled hollow element in the form of a coil forming the structure. A special embodiment consists in that the hub body is provided at least at one end with an axial end section which projects freely on the end face of the impeller and is connected in a rotationally fixed manner to an actuating wheel for rotating the hub body in order to wind up or unwind the body winding , The hub body is preferably connected to the impellers by means of a rotary bearing. In order to be able to design the auxiliary dike winding body particularly easily and quickly on site with one and the same device, the invention provides in an embodiment that the impellers and optionally at least one actuating wheel provided for rotating the hub body are removably attached axially to the hub body. According to a special method according to the invention for unwinding the body winding from the rolling device for the purpose of erecting an auxiliary dike, the invention provides that the body winding comprises at least one hollow tube element, with the outer winding end of at least one preferably bottom tube conveyable load medium is initiated for automatic unwinding of the winding.

According to a further advantageous method according to the invention for quickly and safely laying out a body winding from a rolling device according to the invention, it is provided that the winding is unwound and laid out over a section with a certain initial length, the designed starting section metering with load medium until a certain filling level of the part is reached unwound dyke structure is filled and then the winding is so slowly unwound from the rolling device that with dosed continuous filling the erection of the dyke structure essentially while maintaining the filling height provided in the initial section is continued until the dyke structure is fully unwound from the rolling device over its length has been completely filled up to the specified filling height. In a preferred development of the invention, a mechanically resistant, waterproof sheetlike structure in the form of a film or tarpaulin is connected to the outer modules via a flood protection wall constructed in accordance with the invention. This advantageously improves the mechanical resilience of the flood protection device, for example with respect to flotsam, and seals the flood protection wall. Such a tarpaulin is overlapped in the longitudinal direction over the flood protection wall and seals both longitudinal and transverse joints. The tarpaulin is placed on the ground in front of the flood protection wall at least a few meters, e.g. B. two meters, laid out and buried or fastened with suitable fasteners, for example with sandbags, pegs or the like ..

In the case of an auxiliary dike structure which can be erected from any number of modules according to the invention, the respective layers which are stacked for the construction can be arranged in such a way that all hollow elements are compactly combined with one another and aligned parallel to one another. As each hollow element of a module to be arranged higher is fitted into the gap between two hollow elements of the lower layer, the auxiliary dike gains additional stability. In some applications, on the other hand, it can also be favorable to arrange the respective parallel hollow elements flush within the layered layers directly one above the other or to layer the modules on top of one another (viewed in terms of height) in such a way that hollow elements lying one above the other / one above the other in theoretical line contact in their highest (the lower element) or lowest (the upper element) area in contact with each other. In this way, auxiliary dyke constructions can be constructed from a certain number of modules, each of which is higher than that of hollow element layers layered on a gap.

In order to achieve a particularly efficient protection of the auxiliary dike structures against, in particular, momentary mechanical (point) loads such as objects floating in water, an advantageous development of the invention provides for the construction on the upper side surfaces of the auxiliary dike, which run parallel to the longitudinal direction, and if necessary, cover the end faces and / or a part of the land side longitudinal wall with a preferably mechanically heavy-duty film or tarpaulin. The floor area is not covered by this, otherwise the floor grip of the building would be less. An embodiment is particularly advantageous in which such a tarpaulin or film is attached to the net-like covering by means of a separate fastening means such as fastening hooks.

Subclaims are directed to the mentioned and other expedient and advantageous embodiments of the invention. Particularly expedient and advantageous forms of training or possibilities of the invention are described in more detail with reference to the following description of the exemplary embodiments shown in the schematic drawing. Show it

Fig. 1 in axonometric partial view of an inventive

Module with two hollow elements,

2 is a partial axonometric view of a cross-sectionally triangular auxiliary dyke construction,

3 in cross section an auxiliary dike according to the invention

Construction with five hollow elements,

4 to 6 in partial axonometric view and in cross section

Embodiments of structural modules according to the invention and auxiliary dyke constructions,

7 and 8 a module according to the invention which can be rolled up for winding and the winding,

9 shows a rolling device according to the invention for a winding module according to the invention and

10 and 11 a rolling device with module winding in the initial phase of laying out the module according to a method according to the invention. In the embodiment shown in FIG. 1, two identical elongate hose-fb ^'-shaped hollow elements 10 are aligned with circular cross-section with respect to their longitudinal axes parallel to one another and combined to form a modular unit 2, 21, by surrounding it with a sheath made of a flexible, sheet-like network 11 are. This is essentially made up of longitudinal strands 12 parallel to the main dimension L of the hollow elements 10 and transverse strands 13 running perpendicular thereto, which are connected to one another in a suitable manner by knotting, stitching, welding or the like. These are known techniques, so that there is no need to go into them in this context. The strands 12, 13 are expediently irreversibly connected to one another by knotting, and in any case a sufficiently stable connection is established to hold the sheath network 11- together.

As can be seen from FIG. 1, the network 11 is relatively coarse-meshed with regular intervals from intersection points 14. The intervals lie e.g. B. in the order of 10 cm. A mesh size in the range from 5 to 20 cm is preferably selected, it having been found that mesh sizes which are at least 10 cm, but preferably of the order of 15 cm, are particularly advantageous, specifically for tubes 10 with diameters in the range from 50 to 200 cm.

In Fig. 1, the module 21 is shown in the state of bulging tube hollow elements 10. The grid-like network profile with the square mesh openings 18 forms a non-slip system with respect to a base or the floor 6. In addition, the hollow elements 10 are fixed within the envelope by means of this structure and secured against slipping, which would lead to instability. The hoses 10 are made, for. B. from textile fabric. The material can also be elastic in order to obtain a circumferentially stretched element when filled. However, the interaction between the surface of the filled tube 10 and the mesh structure ensures that the latter retains its profile effect and grip ability.

As can be seen, the module shape between the tangentially lying hollow elements 10 is limited by the fact that the network 11 is kept tensioned between the two hollow elements 10, whereby it is closed over the circumference of the module Serving forms. This is expediently closed by a longitudinal seam 29, which can be easily produced continuously on overlapping edge stitches or at intervals. A special base for attaching a fastening means to the network 11 is formed in the spanned hollow areas. Fasteners can e.g. B. in the mesh openings enclosing hook 42 or in the mesh braided or knotted with them strands or bands 41. In no case does the fastening means act directly on the hollow elements 10.

The diameter of the hollow tube elements can be in the order of 50 to 200 cm. This primarily depends on the use of modules 2. In particular, a single module 2 as such can already form a longitudinal section of an auxiliary dike structure, in that the height of the hollow elements 10 in the example in FIG. 1 and in particular in the examples in FIGS. 4 to 6 in two levels determine the height of the dike ,

Two modules 21 comprising hollow elements 10 of the embodiment shown in FIG. 1 can be arranged in a simple manner one behind the other in the longitudinal direction and connected to one another. For this purpose, the embodiment of the modules 21 shown in FIG. 1 has a sheath network 11 which extends in the longitudinal direction on at least one side in each case beyond the hollow elements 10. The end of the other module 21 can be inserted into the protrusion of the net-like sheathing of the one module 21, as a result of which a mechanically robust connection of the two modules 21 is achieved after the hoses 10 last laid out are filled.

By stacking the modules 2 you can build auxiliary dikes of variable height. An advantageous embodiment of a simple and compact auxiliary dike structure 3, 31 is shown in FIG. 2. The bottom component here is a module 21 of the type shown in FIG. 1, which comprises two tubular hollow elements 10, which are surrounded by a common sheath network 11. On this lower module position, a smaller module 2, 22, comprising only a single tubular hollow element 10, is arranged in a compact spatial shape on a gap. The cladding network 11, which surrounds the smaller module 22 in the module state based on it, is covered with the cladding of the lower, larger module 21 several connecting strands 41, which form a fastening means 4, connected, whereby a high degree of stability is achieved for the auxiliary dike construction. Auxiliary dike constructions of greater height and / or width can also be erected in an analogous manner. The strands 41 are expediently connected to them by braiding into the square meshes 18 of the two networks 11.

In FIG. 2, the hollow elements 10 adjacent in the two elevations are kept connected in the filled module state shown via the network surface 112 of the network 11. The arrangement is such that the hollow elements 10 are in theoretical contact with one another in their highest or lowest region.

Another advantageous embodiment for illustrating an auxiliary dike construction 3, 32 is shown in cross section in FIG. 3. Similar to the embodiment shown in FIG. 2, this auxiliary dike consists of two modules 2 of different sizes stacked on a gap. The larger, lower module 23 comprises three hollow elements 10, the upper layer, on the other hand, forms a module 21 which, according to FIG. 1, includes two hollow elements 10; both modules 21, 23 are each surrounded by their own wrapping network 11, which are connected to one another by means of connecting strands 41, as in the embodiment according to FIG. 2. Outside is a stable tarpaulin 15 for sealing the auxiliary dike and for protection against mechanical stress placed over this auxiliary dike. This tarpaulin 15 is fastened at least on the land side to at least one network 11, specifically with a fastening means 4 which engages in the openings of the network 11, here by means of fastening hooks 42 which engage at the crossing points of the strands of the network 11.

In the exemplary embodiment according to FIG. 4, a module 2, 24, which in particular as such forms the longitudinal section of an auxiliary dike structure 3, 33 without further height modules, is joined together with three hose elements 10.1, 10.2 and 10.3. In contrast to the arrangement of three according to FIG. 2, it is an independent module, which, however, is constructed with a lower component 21.1 corresponding to FIG. 2. On this inner module 21.1, the hollow tube element 10.1 is placed, and the overall arrangement is spanned by a two-part substation network 11.1 and held together. The network 11 of the inner module 21.1 is, similar to the embodiment of FIG. 3, so flexible and conformable and dimensioned that the hollow element 10.1 in a tangent position to the lower hollow elements 10.2 and 10.3 in a dent 116 of the hollow elements 10.2 and 10.3 spanning section of the network 11 lies. The upper hollow element 10.1 is clamped in a separate network section 111.1, which is connected at superposed nodes by looping or the like to the network 11 on the lateral long sides of the hollow elements 10.2, 10.3. The attachment can also be made in sections by individual seams 101.

It can be seen that the filled module 24 has network chambers 171, 172 separated by the network section 112, the lower network chamber 171 enclosing the hollow elements 10.2 and 10.3 and the upper network chamber 172 the hollow element 10.1 under mains voltage. Sections 111.1 and 111.2 of the cladding network 11.1 of the module 24 and the cladding network 11 of the inner module 21.1 have the same mesh structure as the modules 2 described above, extending between the lower hollow elements 10.2 and 10.3 and the upper hollow element 10.1 net sections 110 spanning from the hollow elements 10. These areas are again particularly well suited for attaching hooks or the like. B. for attaching a sealing film or tarpaulin. The module filling and / or the network sections can also be dimensioned or selected such that the guy net sections 110 are formed under pressure in the region of the hollow sections of the chamber 172, similar to the case of the dent 16 in the network section 112.

According to the invention, it is also possible that the structure assembled according to FIG. 2 from the two modules 21, 22 is prefabricated as a module corresponding to FIG. 4. The connecting strands 41 then form part of a sheath network, it being essential for the invention that the hollow elements 10 in the three-way arrangement are in engagement with the mesh openings 18 via a network section 112.1 and the two lower hollow elements 10 are in the network 11 are clamped with such a structural profile. FIG. 5 shows a module 2, 25 manufactured as an auxiliary dike structure 3, 34, which represents a modification of the embodiment according to FIG. 1. A sheath network 11 is additionally equipped with a network section 113 which, when the module 25 is filled, pulls sections 14 of the network 11 into the spaces between the hollow elements 10. On the one hand, the network section 113, which has the same network profile as the basic network 11 surrounding the hollow elements 10 on the outside, forms an additional network connection between the adjacent hollow elements 10; on the other hand, V-shaped depressions 115 are formed with the retracted network sections 114, which increase the cross-sectional stability of the module 25. There are chambers 17 which surround the hollow elements 10 with sections 113, 114 which extend straight and are polygon-like. The lower depression 115 acts as an additional engagement means between the module 25 and the subsurface 6. The auxiliary dike structure 25 expediently again has a sealing tarpaulin 15 which is hooked into the area of the upper depression 115 by means of hooks 42. If one chooses circular cross-section hoses 10 with a diameter of 150 cm, then it is possible to easily achieve damming heights S of approximately 140 cm. Although the module 25 forms a sufficient auxiliary dike height in many cases, it can be used as in FIG. 2 as a base module for a hollow element encased in network 11, which can be inserted particularly easily into the pronounced upper recess 115 as the upper module.

According to the embodiment of FIG. 6, a module 2, 26 manufactured as an auxiliary dyke structure 3, 35, which can be manipulated by itself, is already prefabricated with a base element 25.1 corresponding to FIG. 5, having hollow elements 10.2 and 13.3, and a hollow tube element 10.1 placed thereon. A module having two elevations is designed similar to FIG. 4, but with mesh chambers 17, 173 also for the lower hollow elements 10.2 and 10.3, the upper hollow element 10.1 encompassing the upper recess 115. The sheath network 11.1 common to the three hollow elements 10.1, 10.2, and 10.3 comprises, as in FIG. 4, the network sections 111.1 and 111.2. However, the network section 111.1 with the guy sections 110 is guyed more steeply than in FIG. 4. Guy holes are created on the longitudinal connecting lines with the base network 11. Such a cross-sectional profile of the auxiliary dike or module 26 can be used, to form a special water contact surface on the water side after the tarpaulin 15 has been attached. Otherwise, the depressions 16 a profile that is particularly suitable for adding further modules upwards or lengthways. If, as in the exemplary embodiments according to FIGS. 4 and 5, hoses 10.1, 10.2 and 10.3 with a diameter of approximately 150 cm are selected, a stowage height of approximately 260 cm can be achieved.

All networks and network sections of the modules or auxiliary dyke structures according to the invention are network surfaces which conform to the hollow element (s) in the same shape. As shown, the mesh material does not have its own rigidity, so that straight-line bracing between the hollow elements 10 is achieved in combination with the adjacent mesh sections. The cladding networks 11 or the network sections as such are therefore loose and inherently unstable. In conjunction with the flexible, flat-lay hoses 10, this net material is excellently suitable for producing prefabricated modules 2 in a flat display of network and hoses on the one hand and, on the other hand, for rolling them up to form a module wrap, which can be kept ready for transport, transported and through Rolling out can be erected to the auxiliary dike structure in no time.

FIG. 7 shows the module 26 of FIG. 6 in an unfilled, flat, web-like state. The flat module 26 can e.g. B. be formed in that the flat hollow element 10.2 is first placed on a network section 27 between the circumferential locations a and b and the flat hollow element 10.3 on a section 28 between the circumferential locations a and c. After the network 11 has been turned around the hollow element 10.2, a first connection is made at a lower point a between the elements 10.2 and 10.3. After the network 11 has been turned around the element 10.3, a second connection is made at an upper point d between the elements 10.2 and 10.3. Sufficient mesh material is left for section 113 between points d and a.

The longitudinal connections at points a and d can be made by longitudinal seams. Network nodes of the sections to be connected are expediently placed one above the other and at these nodes by simply wrapping them with a seam strand connected. The seam 29 in Fig. 1 and the link in Fig. 4 can be made accordingly.

With the above-mentioned knot connections, the net-mesh structure is preserved, so that the net sheath in the longitudinal dimension L of the module 26 remains flexible to a certain extent and can be displaced relative to the hose elements. In this way, the module 26 can also be designed with narrow radii of curvature without impairing or destroying selective connections or connections. The hoses 10 are not subjected to selective tensile or shear forces. Rather, the force is always distributed evenly and flatly due to the network covering.

The flat tube 10.1 is placed flat on the module base unit 10.2 / 10.3 and then the guy net 111.1 is attached in order to form the closed flat covering 11.1 for the flat lying hollow elements 10.1, 10.2 and 10.3. The web-shaped flat module 26 is wound on an axis 50 which is directed perpendicular to the hollow element longitudinal dimension L in order to form a winding body 20 shown in FIG. 8. In the exemplary embodiment, the flat module 26 is wound onto a hub body 51 which can be removed and inserted into a rolling device 5 shown in FIG. 9.

The rolling device 5 comprises the hub body 51, which is rotatably connected to wheels 52 via bearings 54 and the axis 50. Along the hub body 51 there are spaced hook-shaped or screw-shaped fastening elements 56, in which the network 11. 1 of the module 26 to be wound is suspended at the start of the winding.

In order to be able to wind up and unwind the winding 20 comfortably even when the running wheels 52 are stationary, axial end sections of the hub body 51, which protrude outward on the running wheels 52, have a rotationally fixed connection secured by a pin 531 or the like Hand-operated actuating wheels 53 are removably attached. In one embodiment, the invention provides that the bearings 54 of the rotary bearing comprise a braking device 55, by means of which the relative rotary movement between the wheels 52 and the hub body 51 can be controlled. The impellers 52 are also in Plug connection on the bearing 54 removable against stops placed on the hub body 51.

To roll up a flat-lying web-shaped module 2, it is first hooked into the fastening elements 56 with end-side meshes 18; when the hub 51 is rotated by means of the actuating wheels 53, the rolling device 5 pulls along the flat module 2, so that it does not rub against the floor on which it is designed, that is to say it is only removed from the floor upwards. By targeted braking of the wheels 52 it is achieved that the flat module 2 is wound tight. By braking only one impeller 53, the position or the winding formation on the hub 51 is controlled in a simple manner. As soon as the auxiliary dyke assembly (module) has been completely wound up, the winding 20 is fixed with tension belts 200, which also serve as handling and / or fastening elements for transporting the dyke module winding 20.

The rolling device 5 expediently comprises a ramp body 58, in particular provided with an inclined running surface 580, by means of which the hub body 51 can be raised with wheels 52, 53 and wound reel 20. The winding 20 is brought to rest on the ramp 58, which engages in the area between the two wheels 52. It is achieved that the impellers 52 are relieved to pull the actuating wheels 53 and the impellers 52 from the hub body 51. The winding unit shown in FIG. 8 is formed from only the hub body 51 and the module 2 wound thereon. This unit can be stacked in a particularly space-saving manner and transported easily.

In order to use an auxiliary dike module 2 wound on the hub body 51, the winding 20 is z. B. raised by means of the ramp 580, and the impellers 52 and then the actuating wheels 53 are plugged onto the two ends of the hub body 51. By means of the rolling device 5 thus formed, the module winding 20 can easily be rolled by hand over a greater distance from the place of use. The tension belts 200 are released there and the module is laid out by unrolling. The roller device 5 can easily follow the course of the auxiliary dike to be erected. Even tight curve radii can be followed exactly because the wheels 52 are stored independently of each other. After the module has been completely rolled out, it is released from the fastening elements 56 at the end of the web, so that it is completely laid out in situ. Valves 19 of the hollow elements 2 are now connected to a water pressure line in order to be filled with the load medium.

It can be seen that, due to the plug connections described between the hub body 51 and the impellers 52 and the actuating wheels 53, one set of impellers and one manual actuating wheels is sufficient to manipulate a large number of modules 2, each wound on a hub body 51.

A special embodiment of the invention consists in that the required load medium for the automatic unwinding of the module 2 is introduced from the roller device 5 into at least one expediently bottom-side hose 10 at the outer end of the module winding 20 for unwinding a structural module winding 20. For this purpose, a filling valve 19 is arranged on at least one end face of the module, which valve is connected to a filling hose. The method substantially supports the rolling device 5, which is guided by hand along the auxiliary dike line.

According to the invention, a special method is provided to erect a dyke module 2, 20 in an area that has already been flooded. However, the water flow in the area must be so low that the erected dike section is not pushed out of its position before it has been completely filled and is stable. As shown in FIG. 10, a module roll 20 wound on a rolling device 5 is first unwound and laid out over a section 59 with a certain initial length. In the example, a module 2 is used, as can be seen from FIG. 7. One then begins to fill the lower hoses 10.2, 10.3 in the relatively short distance laid out. Filling is carried out with water as the load medium, which is introduced in a metering manner in order to achieve a suitable initial filling level B. The hoses 10.2 and 10.3 are only partially filled, the height B, for. B. with B = 2/3 R is kept well below the height of the hub body 51 corresponding to the rolling radius R. According to the method according to the invention, the tubes 10.2, 10.3, starting from the initial section, are still filled in a metering manner, the roll 20 being slowly rolled off the rolling device 5 such that it is not designed faster than the completed or already laid out route is filled. In the case of metered continuous module filling, the erection of the module is essentially continued while maintaining the filling height B provided in the starting section 59 until the module has been completely filled over its length to the initial height when the rolling device 5 is completely unwound. Only then are the lower hoses 10.2 and 10.3 and - in the exemplary embodiment - the upper hose 10.1 completely filled to the module or dike height.

In flooded terrain, the module 2 is always filled higher than the surrounding water surface when filling to the intermediate height B in order to prevent the module 2 from floating. When using a rolling device 5 with a rolling radius R of 1 m and the same hoses 10 with a diameter of approx. 90 cm, the module 2 will be able to be designed in water depths of up to approx. H = 40 cm. Moreover, it has been found that due to the construction of the dike module 2 according to the invention in use with the rolling device 5, it is also possible to lay out in flooded terrain with radii of curvature in order to correspond to a curvature profile of the auxiliary dike to be erected.

Of course, the described method according to the invention for erecting the dike module with a progressively completed and filled route can also be carried out on non-flooded terrain. In general, the rolling device according to the invention and the method according to the invention are provided in order to manipulate a dyke structure 3 which can be laid out flat and filled with load medium and comprises at least one hose hollow element 10 which can be wound up. A winding 20 unwound from the rolling device 5 can form the auxiliary dike as such without the addition of an additional module if the auxiliary dike is to be erected with the appropriate length of hose.

Claims

Expectations:

1. Building module (2) of an auxiliary dike, comprising at least one elongated flexible, hollow element (10) that can be filled with conveyable medium such as water, mud or the like, and an envelope that at least partially surrounds it and that covers the outer circumference of the building as a module determined, characterized in that the sheath is designed as a flexible flat network (11) which has cross-wise, intersecting, at at least part of the strand crossing points (14) stably interconnected network strands (12, 13), the Envelope network (11), which defines the outer structural shape in the filling state of the module (2), has a shape and mesh structure on the basis of which the network (11), at least in the filling state, forms the basis for connecting several modules (2) to one another as well as for a system that is non-slip due to opposing static friction.

2. Building module according to claim 1, characterized in that a part of the network strands as substantially in the hollow element main dimension (L) extending longitudinal strands (12) and another part as a substantially perpendicular transverse strands (13) is trained.

3. Building module according to claim 1 or 2, characterized in that the network strands (12, 13) of the cladding network (11), preferably at their crossing points (14), a means for connection to a fastening means (4, 41, 42) are.

4. Building module according to claim 3, characterized in that the fastening means (4) comprises a hook element (42) for hanging in the network (11).

5. Building module according to claim 3, characterized in that the fastening means (4) by at least one in the sheath network (11) Pulling, threading, braiding or the like. Fastened means, in particular a connecting strand (41).

6. Building module according to one of claims 1 to 5, characterized in that the network strands (12, 13) are irreversibly connected to one another at at least part of their crossing points (14).

7. Building module according to one of claims 1 to 6, characterized in that the network strands (12, 13) are releasably connected to one another at at least part of their crossing points (14).

8. Bauköφer module according to one of claims 1 to 7, characterized in that the wrapping network (11) determines the module (2) with more than one hollow element (10).

Bauköφer module according to claim 8, characterized in that the wrapping network (11) determines the module (2) with several, preferably with two or three tubular hollow elements (10) arranged side by side in a vertical position.

10. Bauköφer module according to claim 9, characterized in that the wrapping network (11) defines the filled module (2) in cross section as a substantially triangular module (24, 26), preferably by three in a compact spatial shape at two altitudes arranged tubular hollow elements (10) is formed.

11. Bauköφer module according to claim 9 or 10, characterized in that the wrapping network (11) has at least one guy means (112, 113) which engages between in the module (24, 26) adjacent hollow elements (10) such that Mesh chambers (17) are formed, which enclose the hollow elements (10) under mains voltage.

12. Bauköφer module according to claim 11, characterized in that the mesh sleeves are designed such that in the filled state of the hollow elements (10) in their longitudinal extent between at least a pair of adjacent hollow elements (10) at least one recess (115) is formed.

13. Bauköφer module according to one of claims 9 to 12, characterized in that the module shape between two in the filling state, in the module (2) outer adjacent hollow elements (10) is limited in that the wrapping network (11) between the two hollow elements (10) is held taut and forms a base in this area for attaching a fastening means (4) to the network (11).

14. Bauköφer module according to claim 13, characterized in that the wrapping network (11.1) from a plurality of the outer Bauköφerform by guying and adhering to hollow elements (2) defining limiting, in the network (11.1) interconnected network sections (111) formed is.

15. Bauköφer module according to claim 14, characterized in that at least one guy network section (111.1) with at least one of adjacent hollow elements (10) anchoring network section (110) around at least one hollow element (10.1) and with a basic network section ( 11) is connected.

16. Bauköφer module according to claim 15, characterized in that the guy network section (111.1) is formed by a separate network with at least one guy network section (110).

17. Bauköφer module according to claim 15, characterized in that the guy network section (111.1) is formed by a plurality of guy lines (41) incorporated into the base network section (11).

18. Bauköφer module according to one of claims 15 to 17, characterized in that between the bracing network section (111.1) and the base network section (11) at least one in the hollow element longitudinal dimension (L) extending guy hole (16) between two hollow elements (10) is formed.

19. Bauköφer module according to claim 10, characterized in that in adjacent heights adjacent hollow elements (10) in the filled module state via at least one in the module (24, 26) extending network surface (112, 114) are held in connection ,

20. Bauköφer module according to claim 19, characterized in that in the filled module state at least one hollow element (10.1, 10.2) in the module (2) by a network (11) is spanned closed.

21. Bauköφer module according to one of claims 1 to 20, characterized in that the wrapping network (11) in the hollow element longitudinal dimension (L) has a length which is greater than the length of that of the wrapping network (L) surrounded hollow elements (10).

22. Bauköφer module according to one of claims 1 to 21, characterized in that the hollow element (10) or each hollow element (10) is a flexible hose, preferably with a circular cross section.

23. Bauköφer module according to one of claims 1 to 22, d a d u r c h characterized in that it is wound in the unfilled state in the form of a winding body (20) about an axis (50) directed transversely to the hollow element longitudinal dimension (L).

24. Bauköφer module according to claim 23, characterized in that the module (2) on a Nabenköφer (51) is wound, which can be removably used in a rolling device (5).

25. auxiliary dyke structure (3), characterized in that the module (2) according to one of claims 1 to 24 as such determines the height of the dike with its height, the auxiliary dyke structure optionally in a row arrangement by a series of such in the The height provided in the number of modules (2) provided.

26. Auxiliary dike structure, comprising a plurality of Bauköφer modules (2) with cladding networks (11) according to one of claims 1 to 25, characterized in that the structure for building in height and, where appropriate, in length from modules (2) with different options

Number of hollow elements is built.

27. Auxiliary dike structure according to claim 26, characterized in that the hollow elements (10) of the different modules (2) are layered in the vertical extension to a gap.

28. Auxiliary dike structure according to claim 26 or 27, characterized in that the cladding networks (11) of adjacent modules (10) are fastened to one another by means of connecting strands (41) to be attached separately.

29. Auxiliary dyke structure according to one of claims 25 to 28, characterized in that it can be fastened overall with the exception of its support on the substrate and, if appropriate, the end face and / or part of the land side longitudinal wall of one on the wrapping network (11) sealing film or tarpaulin (15) is covered, which is preferably provided with fastening hooks (42).

30. auxiliary dike structure according to one of claims 25 to 29, d a d u r c h g e - indicates that the connection of two in the longitudinal direction of the module

(L) modules (2) in series are produced by inserting the one (first) module into a protrusion of a next (second) module, the protrusion being formed by a network covering (2), which protrudes in the longitudinal direction (L) beyond at least one hollow element (10) of the next module (2).

31. Rolling device (5) for an auxiliary dike body (3) in particular according to claim 23 or 24, characterized in that the device

(5) a between two wheels (52) arranged around its axis (50) rotatable hub body (51), which accommodates at least one flexible, elongated, unfilled hollow element (10) in the form of a coil (20) forming the body (3).

32. Rollvomchtung according to claim 31, characterized in that the hub body (51) is provided at least at one end with an axial end portion which projects freely on the end face on the impeller (52) and rotatably with an actuating wheel (53) for rotating the hub body (51) is connected.

33. Rolling device according to claim 32, characterized in that the hub body (51) is connected to the wheels (52) by means of a rotary bearing (54).

34. Rolling device according to one of claims 31 to 33, characterized in that the wheels (52) and optionally at least one for rotating the hub body (51) provided actuating wheel (53) are removably attached axially to the hub body (51).

35. Rolling device according to one of claims 31 to 34, characterized in that on the hub body (51) fastening elements (56), preferably in the form of protruding, hook-like elements intended for engagement in network meshes (18), for connecting to an end face of a unfilled state designed Bauköφers (3) are arranged.

36. Rolling device according to claim 33, characterized in that the rotary bearing (54) comprises a braking device (55) by means of which the relative ve rotational movement between the wheels (52) and the hub body (51) can be controlled.

37. Rolling device according to one of claims 32 to 36, characterized in that it comprises a ramp body (58) which can be placed between the running wheels (52) and onto which the structural coil (20) wound onto a hub body (51) can be placed.

38. Roll device according to one of claims 31 to 37, characterized in that a building body roll (20) is wound on the hub body (51) of the rolling device (5).

39. Method for unwinding a Bauköφerwickels (20) from a rolling device (5) according to claim 38 in order to erect an auxiliary dike by means of the Bauköφers (3) designed by unwinding, characterized in that in the outer winding end of at least one hollow tubular element (10) the load medium required for the construction body winding (20) for the at least partially automatic unwinding of the winding (20) is introduced.

40. A method for unwinding a building body roll (20) from a rolling device (5) according to claim 38 in order to erect an auxiliary dike, characterized in that the roll (20) is unwound and laid out over a section (59) with a certain initial length , the designed initial section (59) is dosed with load medium until a certain filling height (B) of the partially unwound dyke body (3) is reached and then the winding (20) is slowly unwound from the rolling device (5), that with dosed continuous filling the erection of the dyke body (3) is essentially continued while maintaining the filling level provided in the initial section (59) until the dyke body (3) over its length with complete unwinding from the rolling device (5) has been completely filled up to the specified filling level (B).

41. The method according to claim 40, characterized in that the Bauköφerwickel (20) in already flooded terrain is handled by the initial filling level holding filling, the filling level (B) of the winding (20) substantially higher than the surrounding height (H ) is held by flood water.

42. The method according to any one of claims 39 to 41, characterized in that for erecting a dyke construction body (3) comprising hoses (10) in at least two heights with at least two hoses (10.2, 10.3) in the lower position, initially the hoses (10.2, 10.3) of the lower layer and then the hose layers that follow upwards are filled.