EP1628790B1 - Protective mesh in particular for rockfall protection or for slope stabilisation - Google Patents

Protective mesh in particular for rockfall protection or for slope stabilisation Download PDF

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Publication number
EP1628790B1
EP1628790B1 EP05740963A EP05740963A EP1628790B1 EP 1628790 B1 EP1628790 B1 EP 1628790B1 EP 05740963 A EP05740963 A EP 05740963A EP 05740963 A EP05740963 A EP 05740963A EP 1628790 B1 EP1628790 B1 EP 1628790B1
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EP
European Patent Office
Prior art keywords
wire
protective net
strands
suchlike
bundles
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EP05740963A
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German (de)
French (fr)
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EP1628790A1 (en
Inventor
Stephan Wartmann
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Fatzer AG
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Fatzer AG
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
    • E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
    • E01F7/045—Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/02—Making wire network, i.e. wire nets without additional connecting elements or material at crossings, e.g. connected by knitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10—Patterned fabrics or articles
    • D04B1/102—Patterned fabrics or articles with stitch pattern
    • D04B1/108—Gussets, e.g. pouches or heel or toe portions
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2101/00—Inorganic fibres
    • D10B2101/20—Metallic fibres
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/20—Industrial for civil engineering, e.g. geotextiles
    • D10B2505/204—Geotextiles

Definitions

  • the present invention has for its object to further improve a protective net of the type mentioned and to reduce the risk of breakage considerably.
  • the inventive diagonal braid of wire strands, wire ropes or wire bundles can be made practically “endless” in rolls, with the roll longitudinal sides with advantage also high-strength edge nodes in Form of formed at Drahtlitzen-, wire rope or wire bundle ends loops are provided.
  • the protective net according to the invention from individual helically bent wire strands, wire cables or wire bundles is braided, the two or more twisted together to form a wire strand or combined into a wire bundle wires made of high-strength steel or formed from two or more twisted to a wire rope wire strands of high strength steel are a high-strength protective net is created, which allows virtually no deformation under load and without Maschenfix réellesetti (eg. Kreuzklemmen) manages.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Woven Fabrics (AREA)
  • Ropes Or Cables (AREA)
  • Wire Processing (AREA)

Description

Die Erfindung betrifft ein Schutznetz, insbesondere für einen Steinschlagschutz oder für eine Böschungssicherung, gemäss dem Oberbegriff des Anspruches 1.The invention relates to a protective net, in particular for a rockfall protection or for a slope protection, according to the preamble of claim 1.

Ein Schutznetz dieser Art ist in der EP-B-0 979 329 offenbart. Das Schutznetz ist als ein Diagonalgeflecht mit rhomboidförmigen Maschen und einer dreidimensionalen matratzenartigen Struktur ausgebildet, welches aus einzelnen wendelförmig gebogenen Drähten aus einem hochfesten Stahl geflochten ist. Die Drähte weisen eine hohe Zugfestigkeit auf, so dass das Geflecht auch im gestreckten Zustand eine dreidimensionale matratzenförmige Struktur behält und bei Abdeckung einer Erdoberfläche als Halterung oder Stabilisierung von Vegetationsschichten dienen kann. Das Drahtgeflecht lässt sich zusammenlegen und nimmt für die Lagerung oder den Transport wenig Platz in Anspruch. Dank der hohen Biegefestigkeit der Drähte wird bei einem allfälligen Drahtbruch die Gefahr des Entstehens einer Laufmasche reduziert.A protective net of this kind is disclosed in EP-B-0 979 329. The protective net is formed as a diagonal braid with rhomboid meshes and a three-dimensional mattress-like structure braided from individual helically bent wires of a high strength steel. The wires have a high tensile strength, so that the mesh retains a three-dimensional mattress-shaped structure even when stretched and can serve as a support or stabilization of vegetation layers when covering a surface of the earth. The wire mesh can be folded and takes up little space for storage or transport. Thanks to the high bending strength of the wires, the risk of a run-down is reduced in the event of wire breakage.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Schutznetz der eingangs genannten Art weiter zu verbessern und die Bruchgefahr erheblich zu reduzieren.The present invention has for its object to further improve a protective net of the type mentioned and to reduce the risk of breakage considerably.

Diese Aufgabe wird erfindungsgemäss durch ein Schutznetz mit den Merkmalen des Anspruches 1 gelöst.This object is achieved according to the invention by a protective net having the features of claim 1.

Weitere bevorzugte Ausgestaltungen des erfindungsgemässen Schutznetzes bilden den Gegenstand der abhängigen Ansprüche.Further preferred embodiments of the protective net according to the invention form the subject of the dependent claims.

Dadurch, dass das Schutznetz erfindungsgemäss aus einzelnen wendelförmig gebogenen Drahtlitzen, Drahtseilen oder Drahtbündeln geflochten ist, die zwei oder mehrere Drähte (oder Drahtlitzen) vorteilhaft aus hochfestem Stahl umfassen, wird ein Schutznetz mit hoher Festigkeit geschaffen, das bei Belastungen praktisch keine Deformation zulässt und ohne Maschenfixierungselemente (bspw. Kreuzklemmen) auskommt.By virtue of the fact that the protective net is braided according to the invention from individual helically bent wire strands, wire cables or wire bundles which advantageously comprise two or more wires (or wire strands) of high-strength steel, a protective net with high strength is created, which permits virtually no deformation under load conditions and without Mesh fixing elements (eg., Cross clamps) manages.

Das erfindungsgemässe Diagonalgeflecht aus Drahtlitzen, Drahtseilen oder Drahtbündeln kann praktisch "endlos" in Rollen hergestellt werden, wobei an den Rollen-Längsseiten mit Vorteil ebenfalls hochfeste Randknoten in Form von an Drahtlitzen-, Drahtseil- oder Drahtbündel-Enden gebildeten Schlaufen vorgesehen sind.The inventive diagonal braid of wire strands, wire ropes or wire bundles can be made practically "endless" in rolls, with the roll longitudinal sides with advantage also high-strength edge nodes in Form of formed at Drahtlitzen-, wire rope or wire bundle ends loops are provided.

Die Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. Es zeigen:

Fig. 1
eine Draufsicht einer Masche eines erfindungsgemässen Schutznetzes,
Fig. 2
ein Schutznetz in teilweiser Draufsicht,
Fig. 3
eine teilweise Seitenansicht des Schutznetzes nach Fig. 1, und
Fig. 4
eine schematische Ansicht auf ein Schutznetz-System als Böschungssicherung an einem Abhang.
The invention will be explained in more detail with reference to the drawing. Show it:
Fig. 1
a top view of a mesh of a protective network according to the invention,
Fig. 2
a protective net in partial plan view,
Fig. 3
a partial side view of the protective net of Fig. 1, and
Fig. 4
a schematic view of a protective net system as slope protection on a slope.

Fig.1 und Fig.2 zeigen jeweils ein Schutznetz für eine Sicherung einer Erdoberflächenschicht, wie beispielsweise eine Böschungssicherung oder eine Felswandsicherung an einer Strasse oder ähnlichem, welches als ein beispielsweise viereckiges Diagonalgeflecht 10 mit vier- oder mehreckigen Maschen 17 ausgebildet ist. Das Diagonalgeflecht 10 ist aus einer Anzahl von wendelförmig gebogenen Drahtlitzen, Drahtseilen oder Drahtbündeln 11, 12, 13, 14 geflochten, die jeweils zwei oder mehrere Drähte 22 aus einem hochfesten Stahl umfassen. Es kann sich dabei um zwei oder mehrere zu einer Drahtlitze zusammengedrehte Drähte, um zwei oder mehrere zu einem Drahtbündel gebündelte Drähte, um zu einem Drahtseil gedrillte Drahtlitzen oder um eine Kombination dieser Elemente handeln.1 and 2 each show a protective net for securing an earth surface layer, such as an embankment protection or a rock wall protection on a road or the like, which is designed as a quadrangular diagonal braid 10 with four- or polygonal meshes 17, for example. The diagonal braid 10 is braided from a number of helically bent wire strands, wire cables or wire bundles 11, 12, 13, 14 each comprising two or more wires 22 of a high strength steel. These may be two or more wires twisted together into a strand of wire, two or more wires bundled into a wire bundle, wire strands twisted wire strands, or a combination of these elements.

Die Drähte weisen nach der DIN-Norm 2078 eine Nennfestigkeit zwischen 1000 und 2200 N/mm2 auf, beispielsweise eine solche von 1770 N/mm2. Es könnten jedoch auch Federstahldrähte nach der DIN-Norm 17223 benutzt werden. Die Drahtdicke hängt von der erforderlichen Zugfestigkeit ab und kann beispielsweise 3 mm betragen.The wires have a nominal strength between 1000 and 2200 N / mm 2 according to DIN standard 2078, for example one of 1770 N / mm 2 . However, spring steel wires according to DIN standard 17223 could also be used become. The wire thickness depends on the required tensile strength and may be, for example, 3 mm.

Diese Drähte 22 sind üblicherweise verzinkt, mit einer Beschichtung aus Zink-/Aluminium und/oder einem Kunststoffüberzug oder aus einer Chromlegierung versehen, um die erforderliche Korrosionsbeständigkeit zu erreichen. Hierzu ist beispielsweise ein verzinkter Überzug mit einem Flächengewicht zwischen 100 und 250 g/m2 vorgesehen.These wires 22 are usually galvanized, provided with a coating of zinc / aluminum and / or a plastic coating or a chromium alloy to achieve the required corrosion resistance. For this example, a galvanized coating with a basis weight between 100 and 250 g / m 2 is provided.

An den seitlichen Enden des Geflechtes 10 sind die Drahtlitzen bzw. Drahtseile bzw. Drahtbündel 11, 12, 13, 14 paarweise durch Schlaufen 11", 12" gelenkig miteinander verbunden, wobei diese Schlaufen 11", 12" durch die endseitig abgebogenen Drahtlitzen bzw. Drahtseile bzw. Drahtbündel 11, 12, 13, 14 selbst gebildet sind. Die Drahtlitzen bzw. Drahtseile bzw. Drahtbündel 11, 12, 13, 14 sind, nachdem sie zu Schlaufen gebogen sind, zusätzlich mit vorzugsweise mehreren um ihren eigenen Umfang gewundenen Schlingen 19 versehen, welche aufgrund der im eingesetzten Zustand entstehenden Zugbelastung auf diese Schlaufen eine ausreichende Sicherheit gegen ein Öffnen derselben gewährleisten.At the lateral ends of the braid 10 are the wire strands or wire bundles or wire bundles 11, 12, 13, 14 in pairs by loops 11 ", 12" hinged together, said loops 11 ", 12" by the end bent wire strands or Wire ropes or wire bundles 11, 12, 13, 14 are themselves formed. The wire strands or wire bundles 11, 12, 13, 14 are, after they are bent into loops, additionally provided with preferably a plurality of loops 19 wound around their own circumference, which have a sufficient tensile load on these loops due to the tensile load occurring in the inserted state To ensure safety against opening.

Das Diagonalgeflecht 10 wird von im Erdreich versenkten Befestigungselementen 15 auf dem Erdboden in einer definierten Verspannung gehalten. Vorzugsweise ist in den am oberen und unteren Ende des Geflechtes 10 befindlichen, wendelförmig gebogenen Randdrahtseil bzw. Randdrahtlitze bzw. Randdrahtbündel 11 je ein Draht oder ein Seil 21 eingeschlauft, welches seinerseits von den Befestigungselementen 15 auf den Boden oder dergleichen gespannt ist. Im Prinzip könnten die Befestigungselemente 15 aber auch unmittelbar die Schlaufen 11' halten.The diagonal braid 10 is held by sunk in the ground fasteners 15 on the ground in a defined tension. Preferably, in the located at the top and bottom of the braid 10, helically bent edge wire rope or edge wire strand or edge wire bundle 11 per a wire or a rope 21 is looped, which in turn is stretched by the fasteners 15 to the ground or the like. In principle, however, the fastening elements 15 could also directly hold the loops 11 '.

Die einzelnen wendelförmig gebogenen Drahtlitzen, Drahtseile oder Drahtbündel 11, 12, 13, 14 weisen einen Steigungswinkel α sowie eine Länge L zwischen zwei Biegungen auf, welche die Form und Grösse der Maschen 17 des Diagonalgeflechtes 10 bestimmen. Für den Steigungswinkel α ist vorteilhaft ein Winkelbetrag von annähernd 20 bis 35° gewählt. Die einzelnen Maschen 17 bilden jeweils ein Rhomboid, wobei die Maschenweite beispielsweise 77 x 143 mm beträgt. Dies bietet den Vorteil, dass sich das Geflecht 10 nicht erheblich streckt, wenn es auf eine Erdoberflächenschicht ausgelegt und von den Seilen 21 in seiner Längserstreckung auf Zug vorgespannt wird. Zudem bilden hierdurch die einzelnen Maschen 17 ein Rhomboid mit einer länglichen Öffnung, die den Vorteil einer geringeren Durchlässigkeit von Erdmaterial ergibt.The individual helically bent wire strands, wire cables or wire bundles 11, 12, 13, 14 have a pitch angle α and a length L between two bends, which determine the shape and size of the mesh 17 of the diagonal braid 10. For the pitch angle α, an angle amount of approximately 20 to 35 ° is advantageously selected. The individual meshes 17 each form a rhomboid, wherein the mesh size is for example 77 x 143 mm. This offers the advantage that the braid 10 does not stretch significantly when it is laid out on an earth surface layer and tensioned by the cables 21 in its longitudinal extension to train. In addition, this form the individual mesh 17 a rhomboid with an elongated opening, which gives the advantage of lower permeability of soil material.

Die einzelnen Drahtlitzen, Drahtseile oder Drahtbündel 11, 12, 13, 14 werden im geflochtenen Zustand gelenkig zueinander gehalten, was zur Folge hat, dass sich das Diagonalgeflecht 10 wie eine Matte zusammenlegen bzw. zusammenrollen lässt. Demzufolge wird ein geringer Platzbedarf für die Lagerung und den Transport solcher Geflechte benötigt.The individual wire strands, wire ropes or wire bundles 11, 12, 13, 14 are held in the braided state hinged to each other, with the result that the diagonal braid 10 can be folded or rolled up like a mat. As a result, a small space requirement for the storage and transport of such braids is needed.

Gemäss Fig.3 weist das Geflecht 10 eine dreidimensionale, matratzenartige Struktur auf, was wiederum durch die Verwendung der hochfesten Stahldrähte ermöglicht wird. Die einzelnen Drahtlitzen, Drahtseile oder Drahtbündel 11, 12, 13, 14 sind zu diesem Zwecke derart wendelförmig gebogen und anschliessend miteinander verflochten, dass das hieraus entstehende Geflecht 10 im Querschnitt betrachtet einen annähernd rechteckigen Umriss bildet. Die Drahtlitzen, Drahtseile oder Drahtbündel bestehen daher aus gebogenen Teilen 11' und geraden Teilen 91. Dieses längliche Rechteck hat eine Dicke 10' von mehreren Drahtseil- bzw. Drahtlitzen-Dicken. Damit ist dieses Drahtgeflecht 10 auch im vorgespannten Zustand dreidimensional ausgebildet. Dies bewirkt zum einen eine erhöhte Federungseigenschaft des Geflechtes, denn die Drahtlitzen, Drahtseile oder Drahtbündel lassen sich bei steigernder Verspannung in ihrer Längsausdehnung strecken und vermitteln diesem Netzgeflecht eine erhöhte Elastizität. Zum andern wird durch diese dreidimensionale Ausbildung bei der Abdeckung einer Erdbodenoberfläche, bspw. einer Böschung, zusätzlich eine Stützung oder Stabilisierung der in dieses Geflecht eingebrachten Vegetationsschichten oder von aufgespritzten Abdeckungen erzielt.According to FIG. 3, the braid 10 has a three-dimensional, mattress-like structure, which in turn is made possible by the use of the high-strength steel wires. The individual wire strands, wire cables or wire bundles 11, 12, 13, 14 are bent helically for this purpose and then intertwined with each other such that the braid 10 resulting therefrom forms an approximately rectangular outline when viewed in cross-section. The wire strands, wire ropes or wire bundles therefore consist of bent parts 11 'and straight parts 91. This elongated rectangle has a thickness 10' of several wire rope or wire strand thicknesses. Thus, this wire mesh 10 is formed three-dimensionally in the prestressed state. This causes on the one hand an increased springing property of the braid, because the wire strands, wire ropes or wire bundles can be stretched with increasing tension in their longitudinal extent and impart this network mesh increased elasticity. On the other hand, by this three-dimensional training in the coverage of a soil surface, for example. An embankment, additionally a support or stabilization of the introduced into this network vegetation layers or sprayed covers achieved.

Dadurch, dass das Schutznetz erfindungsgemäss aus einzelnen wendelförmig gebogenen Drahtlitzen, Drahtseilen oder Drahtbündeln geflochten ist, die zwei oder mehrere zu einer Drahtlitze zusammengedrehte oder zu einem Drahtbündel zusammengefasste Drähte aus hochfestem Stahl aufweisen oder aus zwei oder mehreren zu einem Drahtseil gedrillten Drahtlitzen aus hochfestem Stahl gebildet sind, wird ein hochfestes Schutznetz geschaffen, das bei Belastungen praktisch keine Deformation zulässt und ohne Maschenfixierungselemente (bspw. Kreuzklemmen) auskommt.Characterized in that the protective net according to the invention from individual helically bent wire strands, wire cables or wire bundles is braided, the two or more twisted together to form a wire strand or combined into a wire bundle wires made of high-strength steel or formed from two or more twisted to a wire rope wire strands of high strength steel are a high-strength protective net is created, which allows virtually no deformation under load and without Maschenfixierungselemente (eg. Kreuzklemmen) manages.

Das erfindungsgemässe Diagonalgeflecht aus Drahtlitzen, Drahtseilen oder Drahtbündeln kann praktisch "endlos" in Rollen hergestellt werden, wobei an den Rollen-Längsseiten mit Vorteil ebenfalls hochfeste Randknoten in Form von den an Drahtlitzen-, .Drahtseil- oder Drahtbündel-Enden gebildeten Schlaufen vorgesehen sind.The inventive diagonal braid of wire strands, wire ropes or wire bundles can be practically produced "endlessly" in rolls, with high-strength edge nodes in the form of the loops formed at Drahtlitzen-, .Drahtseil- or wire bundle ends are advantageously provided on the roll longitudinal sides.

Grundsätzlich können die Schutznetze aber auch aus Drahtlitzen, Drahtbündeln, Spiralseilen mit dünneren oder dickeren Drähten hergestellt sein, die nicht oder nur teilweise aus hochfestem Stahl gefertigt sind.In principle, the protective nets can also be made of wire strands, wire bundles, spiral ropes with thinner or thicker wires that are not or only partially made of high-strength steel.

Fig.4 zeigt ein System eines erfindungsgemässen Schutznetzes 10, welches vorliegend als Böschungssicherung 40 beispielsweise einer an einem steilen Abhang befindlichen Böschung 45 vorgesehen ist, welche die zu sichernde Erdoberflächenschicht bildet.4 shows a system of a protective net 10 according to the invention, which in the present case is provided as slope protection 40, for example, of an embankment 45 located on a steep slope, which forms the earth's surface layer to be secured.

Diese Böschungssicherung 40 besteht aus dem über einen gewünschten Böschungsbereich ausgelegten Drahtgeflecht 10 und aus den in den Boden versenkten Befestigungselementen 15 mit das Geflecht 10 auf die Erdoberfläche drückenden Krallplatten oder dergleichen. Für die Befestigungselemente 15 werden an sich bekannte Boden- oder Felsnägel gebraucht, welche vorzugsweise in einem regelmässigen Abstand in der Böschung 45 befestigt sind. Am oberen und unteren Ende des Geflechtes 10 ist jeweils ein Seil 21 vorgesehen, mittels welchen das Geflecht 10 mit einer Zugkraft gestreckt ist.This slope protection 40 consists of the designed over a desired slope area wire mesh 10 and from the sunk into the ground fasteners 15 with the braid 10 on the surface of the earth pressing claw plates or the like. For the fastening elements 15, known soil or rock nails are used, which are preferably fastened at a regular distance in the slope 45. At the top and bottom of the braid 10, a rope 21 is provided in each case, by means of which the braid 10 is stretched with a tensile force.

Mit einem solchen Schutznetz-System kann eine optimale Sicherung eines Abhanges erzielt werden. Mit der erfindungsgemässen Ausbildung der Netze können auch grosse Schubkräfte, welche von sich lösenden Steinen oder Felsbröcken in der Böschung entstehen, problemlos aufgenommen werden.With such a protective net system, an optimal protection of a slope can be achieved. With the inventive design of the networks also large shear forces, which arise from solving stones or rock bridges in the embankment, can be easily absorbed.

Bei einem erfindungsgemässen Verfahren zur Herstellung eines Schutznetzes 10 wird jeweils eine Drahtlitze, ein Drahtbündel, ein Drahtseil 11, 12, 13, 14 oder ähnlichem in einem ersten Schritt mit einem definierten Steigungswinkel α wenigstens zu einem Biegedorn einer nicht näher gezeigten Einrichtung zugeführt und in einer definierten Länge L um den Biegedorn um annähernd 180° gebogen. In weiteren Schritten wird die Drahtlitze, der Drahtbündel, das Drahtseil 11, 12, 13, 14 oder ähnlichem mehrmals in seiner Längsachse zum Biegedorn 66 um die definierte Länge L nachgeschoben und jeweils um den Biegedorn um 180° gebogen, bis diese Drahtlitze, der Drahtbündel, das Drahtseil 11, 12, 13, 14 oder ähnlichem eine wendelförmige Ausbildung hat. Nachdem solche wendelförmig gebogenen Drahtlitzen, Drahtbündel, Drahtseile 11, 12, 13, 14 oder ähnlichem vorliegen, werden diese jeweils mit einer zweiten wendelförmig gebogenen Drahtlitze, einem Drahtbündel, einem Drahtseil oder ähnlichem zusammengeflochten, die zweite mit einer dritten und dies wiederholt wird, bis das Drahtgeflecht in der gewünschten Grösse erzeugt ist.In a method according to the invention for producing a protective net 10, in each case a wire strand, a wire bundle, a wire rope 11, 12, 13, 14 or the like is fed in a first step with a defined pitch angle α at least to a bending mandrel of a device not shown in detail and in a defined length L around the bending mandrel bent by approximately 180 °. In further steps, the wire strand, the wire bundle, the wire rope 11, 12, 13, 14 or the like several times in its longitudinal axis to the mandrel 66 by the defined length L nachgeschoben and bent around the bending mandrel by 180 ° until this wire strand, the wire bundle, the wire rope 11, 12, 13, 14 or the like has a helical formation. After such helically bent wire strands, wire bundles, wire cables 11, 12, 13, 14 or the like are present, these are each braided with a second helically bent strand of wire, a wire bundle, a wire rope or the like, the second with a third and this is repeated until the wire mesh is produced in the desired size.

Vorteilhaft werden bei den Litzen, Drahtbündeln oder Drahtseilen zumindest teilweise hochfeste Drähte verwendet. Es könnten aber auch Drähte mit geringerer Festigkeit dafür eingesetzt werden. Durch die Tatsache, dass man gegenüber einzelnen Drähten zum Beispiel dickere Drahtbündel verwenden kann, lässt sich hierdurch die insgesamte Festigkeit auf diese Weise erhöhen.Advantageously, at least partially high-strength wires are used in the strands, wire bundles or wire ropes. But it could also be used with less strength wires for it. The fact that one can use for example thicker wire bundles compared to individual wires, can thereby increase the overall strength in this way.

Claims (10)

  1. Protective net, especially for rockfall protection or for verge securing, which is formed by means of a diagonal weave (10) produced from wires (22) and forming a three-dimensional, mattress-like structure, characterised in that the diagonal weave (10) is woven from wire strands, from wire bundles, from wire cables (11, 12, 13, 14) or suchlike, incorporating two or more wires (22) or wire strands made of steel.
  2. Protective net according to Claim 1, characterised in that the wire strands, wire cables, or wire bundles (11, 12, 13, 14) or suchlike are made at least in part from high tensile steel.
  3. Protective net according to Claim 1 or 2, characterised in that the wire strands, wire cables or wire bundles (11, 12, 13, 14), are flexibly connected with one another at their ends in pairs via loops (11", 12").
  4. Protective net according to Claim 3, characterised in that the wire strands, wire cables or wire bundles (11, 12, 13, 14) are additionally equipped with at least one loop (19) wound around their own circumference following their bending into loops (11", 12").
  5. Protective net according to one of the Claims 1 to 4, characterised in that the wires (22) forming the wire strands, wire cables or wire bundles (11, 12, 13, 14) are corrosion resistant.
  6. Protective net according to one of the Claims 1 to 5, characterised in that the wires (22) forming the wire strands, wire cables or wire bundles (11, 12, 13, 14) have a nominal strength within a range of 1000 to 2200 N/mm2.
  7. Protective net according to one of the Claims 1 to 6, characterised in that the spiral-shaped, bent wire strands, wire cables, or wire bundles (11, 12, 13, 14) forming the diagonal weave (10) have an angle of inclination (α) of preferably between 25° to 35°.
  8. Protective net according to one of the Claims 1 to 7, characterised in that a verge securing (40) incorporates the wire weave (10), fitting elements (15) that can be sunk into the ground with claw plates or suchlike holding the weave to the earth surface, and at least one rope (21) on the surface, holding and stretching the weave.
  9. Method for producing a protective net according to one of the preceding Claims 1 to 8, characterised in that a wire strand, a wire bundle, a wire cable (11, 12, 13, 14) or suchlike is introduced at a defined angle of inclination (α) at least up to a spike of a means and bent around said spike in a defined length (L) by approximately 180°, and in that the wire strand, the wire bundle, the wire cable (11, 12, 13, 14) or suchlike is advanced by the defined length L several times around its longitudinal axis in relation to the spike (66) and bent around the spike by 180° each time until this wire strand, wire bundle, wire cable (11, 12, 13, 14) or suchlike has taken on a spiral-shaped form.
  10. Method according to Claim 9, characterised in that a spiral-shaped bent wire strand, a wire bundle, a wire cable (11, 12, 13, 14) or suchlike is woven together with a second spiral-shaped bent wire strand, a wire bundle, a wire cable (11, 12, 13, 14) or suchlike, the second with a third, and repeated until the wire weave has reached the desired size.
EP05740963A 2004-06-08 2005-05-23 Protective mesh in particular for rockfall protection or for slope stabilisation Active EP1628790B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00974/04A CH697096A5 (en) 2004-06-08 2004-06-08 Safety net, especially for rockfall protection or for verge securing.
PCT/EP2005/005542 WO2005120744A1 (en) 2004-06-08 2005-05-23 Protective mesh in particular for rockfall protection or for slope stabilisation

Publications (2)

Publication Number Publication Date
EP1628790A1 EP1628790A1 (en) 2006-03-01
EP1628790B1 true EP1628790B1 (en) 2006-09-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05740963A Active EP1628790B1 (en) 2004-06-08 2005-05-23 Protective mesh in particular for rockfall protection or for slope stabilisation

Country Status (14)

Country Link
US (2) US20070210214A1 (en)
EP (1) EP1628790B1 (en)
JP (1) JP2008501878A (en)
KR (1) KR20060048241A (en)
CN (2) CN1696408A (en)
AT (2) ATE340662T1 (en)
AU (1) AU2005251879B2 (en)
BR (1) BRPI0511920B1 (en)
CH (1) CH697096A5 (en)
DE (1) DE502005000122D1 (en)
ES (2) ES2271939T3 (en)
IT (1) ITBZ20050004U1 (en)
RU (1) RU2376097C2 (en)
WO (1) WO2005120744A1 (en)

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Also Published As

Publication number Publication date
DE502005000122D1 (en) 2006-11-09
BRPI0511920A (en) 2008-01-15
CH697096A5 (en) 2008-04-30
WO2005120744A1 (en) 2005-12-22
AU2005251879A1 (en) 2005-12-22
EP1628790A1 (en) 2006-03-01
ES1060473Y (en) 2006-01-01
ATE340662T1 (en) 2006-10-15
JP2008501878A (en) 2008-01-24
RU2006143057A (en) 2008-06-20
AU2005251879B2 (en) 2010-10-21
BRPI0511920B1 (en) 2017-06-27
KR20060048241A (en) 2006-05-18
AT8699U1 (en) 2006-11-15
ES2271939T3 (en) 2007-04-16
CN102817330A (en) 2012-12-12
RU2376097C2 (en) 2009-12-20
US20070210214A1 (en) 2007-09-13
US20120241565A1 (en) 2012-09-27
ITBZ20050004U1 (en) 2005-12-09
CN1696408A (en) 2005-11-16
ES1060473U (en) 2005-09-16

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