EP1795279B1 - Treillis protectif, en particulier pour la protection contre les chutes de pierres ou pour la consolidation d'une couche terrestre superficielle - Google Patents

Treillis protectif, en particulier pour la protection contre les chutes de pierres ou pour la consolidation d'une couche terrestre superficielle Download PDF

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Publication number
EP1795279B1
EP1795279B1 EP06024562A EP06024562A EP1795279B1 EP 1795279 B1 EP1795279 B1 EP 1795279B1 EP 06024562 A EP06024562 A EP 06024562A EP 06024562 A EP06024562 A EP 06024562A EP 1795279 B1 EP1795279 B1 EP 1795279B1
Authority
EP
European Patent Office
Prior art keywords
wire
elements
wires
protective mesh
mesh according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP06024562A
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German (de)
English (en)
Other versions
EP1795279A1 (fr
Inventor
Stephan Wartmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fatzer AG Drahtseilfabrik
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Fatzer AG Drahtseilfabrik
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Publication date
Application filed by Fatzer AG Drahtseilfabrik filed Critical Fatzer AG Drahtseilfabrik
Publication of EP1795279A1 publication Critical patent/EP1795279A1/fr
Application granted granted Critical
Publication of EP1795279B1 publication Critical patent/EP1795279B1/fr
Not-in-force legal-status Critical Current
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Classifications

    • 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
    • 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

Definitions

  • the invention relates to a protective braid, in particular for a rockfall protection or for securing an earth surface layer, according to the preamble of claim 1.
  • a protective braid of this kind which can either be laid out on the surface of the earth or fastened in an approximately upright position on a slope or the like, is disclosed in US Pat EP-B-0 979 329 disclosed.
  • the protective braid is braided from helically bent wires, such that diamond-shaped mesh formed and each two adjacent helical wires are held articulated to each other, so that the protective mesh can be collapsed and takes up less space for storage and transport than conventional wire nets ,
  • the protective braid is three-dimensional and has a thickness that is several times the wire thickness, thanks to the high tensile strength of the wires even in the stretched state, which when used as an embankment protection improved conditions for the consolidation of vegetation layers or for holding humus or sprayed layers created the covered ground.
  • helically bent wires can also helically bent wire strands, wire ropes or wire bundles to a protective braid, as shown in EP-B-0 979 329 known, braided (cf. EP Patent Application No. 05 740 963.3 ), whereby a protective braid with a particularly high strength is created.
  • the lattice construction according to the document WO-2004/088059 is due to its three-dimensional design suitable only for reinforcing mesh or floor mounting grid, but not for the application of the present application, namely as a rockfall protection or as a backup of the earth's surface layer.
  • This known grid construction forms a zig-zag shape seen in cross-section, that is transversely to the bars, so that the desired three-dimensionality is given.
  • this grid construction is not suitable; for example, to serve as a slope protection, as this would only line contact the ground.
  • the helically bent wires are frictionally and / or positively bent around the rods.
  • the present invention has for its object to further improve a protective braid of the type mentioned and to further increase its power capacity.
  • a substantially straight elongated reinforcing element is guided, through which the diamond-shaped or quadrangular meshes in triangular Maschen are divided and with which the two wires or wire elements are in articulated connection.
  • the reinforcing elements largely reduce deformations and deformations in the Anlenkungs Schemee A of the adjacent wire or wire element pairs (up to 60% compared to those from EP-B-0 979 329 known protective braids) and ensure that the Umbiegeradius the helical wires or wire elements in the contact area is largely largely observed.
  • the inventive protective braid also has an increased lateral stiffness, which can be influenced by the choice of reinforcing elements.
  • the diamond-shaped mesh compared to the braid after the EP-B-0 979 329 be increased because the reinforcing elements ensure that the mesh size is not too large. As a result, the production cost can be significantly reduced (by about 50%).
  • Fig.1 shows a protective braid 10 (or a part of such a protective braid) in particular for a rockfall protection or for securing an earth surface layer, which is braided from helically bent wires 11, 12, 13, 14, 15, 16.
  • the helically bent wires have a pitch angle ⁇ (preferably 25 ° to 35 °) and a length L between two bends.
  • the articulation area ie the area where the bends of two adjacent wires 11, 12; 12, 13; 13, 14, etc., is in Fig. 1 denoted by A.
  • a diagonal mesh with diamond-shaped mesh 17 is formed.
  • the wires 11 to 16 are bent at their ends or provided with loops 11 a, 12 a, 13 a, 14 a, 15 a, 16 a and connected in pairs by these with each other. It could also be a node, i. E. around the loops could be wound several loops.
  • the protective braid 10 is biased by cables 21 in its longitudinal extent and set at regular intervals soil and rock nails with attached, prestressed fasteners 20 to train, as well as in Fig. 2 is shown.
  • helically bent edge wire 11 per a wire or a rope 21 running in, which in turn is stretched by the fasteners 20 on the ground or the like.
  • the fastening elements 20 could also directly hold the edge wire loops 11 '.
  • fasteners 20 are known per se soil or rock nails needed, which are preferably distributed at regular intervals.
  • the protective braid 10 is biased by the ropes 21 in its longitudinal extension to train.
  • all wire pairs with the reinforcing elements 31 to 35 which are at regular intervals from each other.
  • the reinforcing elements 31 to 35 which are formed by a wire in the illustrated embodiment, extend transversely to the direction of elongation and are at least at one end arcuate or provided with a loop 31a, 32a, 33a, 34a, 35a or a node, said lateral end elements either with the corresponding end elements 11a, 12a; 13a, 14a; 15a, 16a of the wire pairs or are hinged to corresponding edge stitches.
  • the end connection on both sides prevents the protective braid can be pushed together.
  • the wire mesh 10 has a thickness 10 ', which is a multiple, preferably between 3 and 10 times the wire thickness. Even under tensile load, the thickness and consequently this mattress-like structure of the wire mesh is approximately maintained thanks to this design, which makes a great difference to other braids, which lose their original thickness majority under train. But this is also a simple insertion of the reinforcing elements allows 31 to 35 in this formed by two wires intersecting bends.
  • the protective braid 10 according to the invention can in turn be collapsed or rolled up without difficulty for storage and transport, suitable loops or knot formations at wire ends snagging while rolling can be largely prevented.
  • the inventive protective braid 10 could instead of individual, helically bent wires and wire elements comprising several wires such as wire strands, wire cables, wire bundles o.ä. be braided.
  • the reinforcing elements 31 to 35 could consist of several wires and the like as wire strands, wire cables, wire bundles or similar. be educated.
  • rod-shaped reinforcing elements of preferably round cross-section, or tubular (or tube-like, closed and / or partially closed) reinforcing elements which allow passage of cables or other elements.
  • rod-shaped reinforcing elements of a semicircular, triangular or similar cross-section come with a recess for the cable in question.
  • the reinforcing elements largely reduce deformations and deformations in the Anlenkungs Symposiume A of the adjacent wire or wire element pairs (up to 60% compared to those from EP-B-0 979 329 known protective braids) and ensure that the Umbiegeradius the helical wires or wire elements in the contact area is maintained even under heavy load.
  • these crucial power transmission areas of the protective braid instead of two now meet three wires or wire elements on each other, whereby the power capacity of the protective braid is significantly increased.
  • the breaking load in the main direction (longitudinal stretching direction) can be increased by up to 30%.
  • the protective braid according to the invention also has an increased lateral (transversely acting) stiffness, which can be influenced by the choice of reinforcing elements.
  • the diamond-shaped mesh compared to the braid after the EP-B-0 979 329 be increased because the reinforcing elements ensure that the mesh size is not too large. As a result, the production cost can be significantly reduced (by about 50%).
  • Both the protective braid forming, helically bent wires or wire elements and the straight reinforcing elements are made of steel and are usually various types of corrosion protection (Zn, Zn-Al coated, stainless steels, plasticized, etc.).
  • the helically bent wires or wire elements (wire strands, wire cables or wire bundles) and / or the straight reinforcing elements consist at least partially of a high-strength steel having a nominal strength of between 1,000 and 3,000 N / mm 2 (DIN standard 2078), which may also be spring steel wires according to DIN standard 17223.
  • the protective braid can also consist at least partially of a steel with a lower strength. It is particularly advantageous to combine helically bent wires or wire elements of a high-strength steel with reinforcing elements made of a steel with a lower strength, wherein the incorporation of the latter by their permanent deformation a terrain adaptation or "Anschmiegung" can be made to the terrain surface and thus to the terrain bumps. It is also possible, by targeted local pre-deformation of these wire elements to further enhance the deformation reduction.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical 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)

Claims (11)

  1. Treillis de protection, en particulier pour protéger contre des chutes de pierres ou pour consolider une couche terrestre superficielle, lequel est tressé avec des fils métalliques (11, 12, 13, 14, 15, 16) recourbés en hélice ou des éléments en fil métallique recourbés en hélice, comprenant plusieurs fils métalliques, tels que des torons métalliques, des câbles métalliques ou des faisceau de fils, de manière à ce que soient formées des mailles (17) en forme de losange et que, respectivement, deux fils métalliques (11, 12, 13, 14, 15, 16) ou éléments en fil métallique hélicoïdaux contigus soient maintenus de façon articulée l'un par rapport à l'autre, et que le treillis de protection ait une épaisseur qui représente un multiple de l'épaisseur du fil métallique ou de l'élément en fil métallique, caractérisé en ce que dans au moins quelques-unes des paires de fils métalliques ou éléments en fil métallique (11, 12, 13, 14, 15, 16) tressées ensemble, un élément de renforcement (31, 32, 33, 34, 35) sensiblement oblong rectiligne passe à travers la zone d'articulation (A) des deux fils métalliques ou éléments en fil métallique hélicoïdaux, c'est-à-dire à travers les courbures entrecroisées de ceux-ci, et subdivise les mailles (17) en forme de losange en mailles (17a, 17b) triangulaires, élément de renforcement avec lequel les deux fils métalliques ou éléments en fil métallique sont en contact de façon articulée, en ce que les fils métalliques (11, 12, 13, 14, 15, 16) ou éléments en fil métallique sont repliés ou munis de boucles (11a, 12a, 13a, 14a, 15a, 16a) ou de noeuds à leurs extrémités et les éléments de renforcement (31, 32, 33, 34, 35) sont repliés ou munis de boucles (11a, 12a, 13a, 14a, 15a, 16a) ou de noeuds à au moins une extrémité, les fils métalliques ou éléments en fil métallique hélicoïdaux, tressés ensemble, étant reliés de façon articulée les uns aux autres par paires au moyen de ces éléments d'extrémités, le treillis de protection étant repliable ou enroulable pour le stockage ou le transport, du fait de la liaison articulée des paires de fils métalliques contiguës les unes par rapport aux autres et par rapport à l'élément de renforcement respectif, aussi bien dans les zones d'articulation (A) que dans les zones d'extrémité.
  2. Treillis de protection selon la revendication 1, caractérisé en ce que l'élément de renforcement (31, 32, 33, 34, 35) est conçu comme un fil unique, comme deux ou plusieurs fils, comme un toron métallique, un câble métallique ou un faisceau de fils.
  3. Treillis de protection selon la revendication 1, caractérisé en ce que l'élément de renforcement (31, 32, 33, 34, 35) est conçu comme une tige ou un tube à section transversale circulaire.
  4. Treillis de protection selon la revendication 1, caractérisé en ce que l'élément de renforcement (31, 32, 33, 34, 35) est conçu comme une tige comportant une section transversale semi-circulaire et un évidement pour le logement de câbles ou d'autres éléments.
  5. Treillis de protection selon l'une des revendications 1 à 4, caractérisé en ce qu'aussi bien les fils métalliques (11, 12, 13, 14, 15, 16) ou éléments en fil métallique que les éléments de renforcement (31, 32, 33, 34, 35) sont constitués en acier et sont protégés contre la corrosion.
  6. Treillis de protection selon la revendication 5, caractérisé en ce que les fils métalliques (11, 12, 13, 14, 15, 16) ou les éléments en fil métallique et/ou les éléments de renforcement (31, 32, 33, 34, 35) sont constitués au moins en partie d'un acier à haute résistance.
  7. Treillis de protection, selon l'une des revendications 1 à 5, caractérisé en ce que les fils métallique (11, 12, 13, 14, 15, 16) ou éléments en fil métallique sont constitués au moins en partie d'un acier à grande résistance et les éléments de renforcement (31, 32, 33, 34, 35) sont constitués d'un acier ayant une résistance plus petite.
  8. Treillis de protection selon l'une des revendications 1 à 7, caractérisé en ce que les éléments de renforcement (31, 32, 33, 34, 35) sont disposés à distance les uns des autres, à intervalles réguliers ou irréguliers, et sont associés à chacune des paires de fils métalliques ou éléments en fil métallique maintenues de façon articulée les unes par rapport aux autres ou à chaque deuxième ou chaque troisième paire de fils métalliques ou éléments en fil métallique.
  9. Treillis de protection selon l'une des revendications 1 à 8, caractérisé en ce que les fils métalliques (11, 12, 13, 14, 15, 16) ou éléments en fil métallique sont repliés ou munis de boucles (11a, 12a, 13a, 14a, 15a, 16a) ou de noeuds à leurs extrémités.
  10. Treillis de protection selon la revendication 9, caractérisé en ce que les éléments d'extrémités sont munis de mailles de bordure correspondantes.
  11. Dispositif de consolidation de talus (40) comportant un treillis de protection selon l'une des revendications 1 à 10, caractérisé en ce que le dispositif de consolidation de talus (40) comprend le treillis de protection (10), des éléments de fixation (20) pouvant être enfoncés dans le sol et comportant des plaques à crampons ou analogues qui pressent le treillis de protection sur la surface du terrain et, au moins sur le côté supérieur, un câble (21) qui maintient et tend le treillis.
EP06024562A 2005-12-09 2006-11-28 Treillis protectif, en particulier pour la protection contre les chutes de pierres ou pour la consolidation d'une couche terrestre superficielle Not-in-force EP1795279B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01951/05A CH698850B1 (de) 2005-12-09 2005-12-09 Schutzgeflecht, insbesondere für einen Steinschlagschutz oder für die Sicherung einer Erdoberflächenschicht.

Publications (2)

Publication Number Publication Date
EP1795279A1 EP1795279A1 (fr) 2007-06-13
EP1795279B1 true EP1795279B1 (fr) 2009-04-29

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EP06024562A Not-in-force EP1795279B1 (fr) 2005-12-09 2006-11-28 Treillis protectif, en particulier pour la protection contre les chutes de pierres ou pour la consolidation d'une couche terrestre superficielle

Country Status (7)

Country Link
US (1) US20070131917A1 (fr)
EP (1) EP1795279B1 (fr)
JP (1) JP2007162456A (fr)
CN (1) CN1978790B (fr)
AT (1) ATE429988T1 (fr)
CH (1) CH698850B1 (fr)
DE (1) DE502006003595D1 (fr)

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DE102017101754B3 (de) * 2017-01-30 2018-05-17 Geobrugg Ag Drahtgeflecht und Verfahren zur Herstellung einer Wendel für ein Drahtgeflecht
DE102017101761B9 (de) * 2017-01-30 2020-03-05 Geobrugg Ag Drahtgeflecht und Verfahren zur Identifikation eines geeigneten Drahts
DE102017123816A1 (de) * 2017-10-12 2019-04-18 Geobrugg Ag Sicherheitsnetz
DE102017123810A1 (de) * 2017-10-12 2019-04-18 Geobrugg Ag Überwachungsvorrichtung und Verfahren zur Überwachung einer Korrosion eines Drahtnetzes
PL235814B1 (pl) * 2018-06-15 2020-10-19 Ryszard Odziomek Druciana plecionka oraz sposób i urządzenie do wytwarzania drucianej plecionki
RU187052U1 (ru) * 2018-09-27 2019-02-15 Общество с ограниченной ответственностью "ТР Инжиниринг" (ООО "ТР Инжиниринг") Плетёная проволочная сетка для защитных систем, обладающая повышенной пластичностью
CN110593912B (zh) * 2019-07-29 2021-05-14 天地科技股份有限公司 一种丝网约束结点、丝网及其制备方法
CN114215011B (zh) * 2022-01-28 2023-10-03 曹永帅 一种水利工程设计用护坡网

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Also Published As

Publication number Publication date
ATE429988T1 (de) 2009-05-15
EP1795279A1 (fr) 2007-06-13
CN1978790A (zh) 2007-06-13
JP2007162456A (ja) 2007-06-28
US20070131917A1 (en) 2007-06-14
CH698850B1 (de) 2009-11-13
CN1978790B (zh) 2012-09-05
DE502006003595D1 (de) 2009-06-10

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