WO2015128177A1 - Filet en câble d'acier et procédé de fabrication d'un filet en câble d'acier - Google Patents

Filet en câble d'acier et procédé de fabrication d'un filet en câble d'acier Download PDF

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Publication number
WO2015128177A1
WO2015128177A1 PCT/EP2015/052620 EP2015052620W WO2015128177A1 WO 2015128177 A1 WO2015128177 A1 WO 2015128177A1 EP 2015052620 W EP2015052620 W EP 2015052620W WO 2015128177 A1 WO2015128177 A1 WO 2015128177A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire rope
rope net
wire
intersections
net according
Prior art date
Application number
PCT/EP2015/052620
Other languages
English (en)
Inventor
Elena BLANCO FERNANDEZ
Francisco BALLESTER MUÑOZ
Daniel JATO ESPINO
Carlos REAL GUTIÉRREZ
José Pedro MERY GARCÍA
Daniel Castro Fresno
Original Assignee
Nv Bekaert Sa
Inchalam Sa - Industrias Chilenas De Alambre
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nv Bekaert Sa, Inchalam Sa - Industrias Chilenas De Alambre filed Critical Nv Bekaert Sa
Priority to BR112016014009-5A priority Critical patent/BR112016014009B1/pt
Publication of WO2015128177A1 publication Critical patent/WO2015128177A1/fr

Links

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
    • B21F27/08—Making wire network, i.e. wire nets with additional connecting elements or material at crossings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F29/00—Making fencing or like material made partly of wire
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
    • F16G11/02—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes with parts deformable to grip the cable or cables; Fastening means which engage a sleeve or the like fixed on the cable

Definitions

  • the present invention relates to a wire rope net and the method to produce such a wire rope net mainly used for geotechnics, in particular to prevent slope instabilities.
  • Slope instabilities are common problems in civil construction. They occur especially in the construction of roads and have high recurrence when the slopes of the affected zone are steeply inclined and are subject to climatic factors, which can lead to accelerated soil and rock erosion.
  • An anchored wire rope net is a pattern-anchored but flexible system used for the stabilization of slopes. It consists of wire rope nets joined by a perimetric rope. The nets support loads developed from detached or falling rocks and transmit this load to the perimetric ropes. In the corner of each net is an anchor that takes the load from perimetric ropes and transmits it into the deep and stable portion of the slope.
  • the resistance function in these systems is mainly developed by wire rope nets, which justify the search of new designs in order to achieve the best possible performance.
  • WO05120744 A1 discloses a protective net, especially for rockfall protection or for verge securing, with a diagonal weave, is formed by a individual spiral-shaped bent wire strands from high tensile steel.
  • EP1538265A1 and US5996972A relate to a net comprises wires or ropes braided together. Moreover, nets are made by weaving wire ropes and the crossings of wire rope are fixed by hard rings as disclosed in US1367249A or by connector clip as disclosed in CA654639A. These solutions considerably complicate the manufacturing process.
  • WO2008132654A1 and US20130251461 A1 respectively disclosed a protective net produced by a relatively simple process.
  • a wire rope net (10,20) for securing and providing support to a surface, as shown in Fig. 1 and 2.
  • Said wire rope net comprises a wire rope mesh panel (12,22) and a plurality of fastening means (14,24).
  • Said wire rope mesh panel comprises one or more wire ropes, which are folded and crossed at intersections to form a plurality of internal meshes (16,26). At least some of the intersections are fastened by said fastening means.
  • At at least some of the intersections inside said wire rope mesh panel three parts of the one or more wire ropes cross each other and at least some of the said internal meshes (16,26) are in the form of triangular shape.
  • the internal meshes of wire rope net are in the form of triangular shape.
  • Triangles are the building blocks of many structures mainly because of their ability to bear large loads without deformation. They are considered to be the strongest shape because a triangular structure subject to strong forces collapses due to material fatigue and not to geometric distortion. It is widely accepted that triangles are so strong when compared to a square or rectangular structure.
  • the intersections inside the wire rope mesh panel are intersections of three parts of the one or more wire ropes.
  • “intersections inside the wire rope mesh panel” means the intersections exclude those on the outer periphery of the wire rope mesh panel.
  • the intersections at the outer periphery or edges of the wire rope mesh panel could be (and are normally) different from the intersections inside the panel due to the termination at edges.
  • "Intersections of three parts of the one or more wire ropes” means a cross-point of three substantially straight parts or portions of one folded wire rope or more wire ropes.
  • the three parts of wire ropes at the intersection cross with each other.
  • the intersections inside the wire rope mesh panel are points where three straight portions of wire rope cross with each other.
  • wire rope fastening means In order to keep the size of the triangular shaped internal meshes, the intersections inside wire rope mesh panel may be fastened by fastening means.
  • wire rope fastening means should have high stiffness to avoid elements moving freely.
  • the joint of three parts of a wire rope in the net is very important in the overall operation, because if the intersection where the three parts of the wire rope join moves freely, the net internal mesh size increases and the system fails, causing landslides to fall onto roads.
  • the fastening means or joint model guarantees that the internal mesh is maintained valid when three parts of one or more wire ropes cross each other and that it is able to bear the loads that tend to move one part of wire rope over the other.
  • intersections inside the wire rope mesh panel are intersections of three parts of the one or more wire ropes.
  • the intersection of meshes can involve four or more lines, but each intersection at least involves three lines.
  • the intersections inside the wire rope mesh panel preferably involve the minimum number of lines required for triangular configuration. This limits the abrasion at the intersections since the less the contact area is, the less the abrasion occurs, provided that other conditions are the same.
  • the fastening means can be relatively simply designed and can provide better fixation and compactness for intersections of three lines than the fastening means for intersections of more than three lines.
  • the fastening means are clamps or clips.
  • the fastening means consists of two parts able between them to embrace portions of the wire rope at the intersection.
  • On each part of fastening means are six bendable tongues engageable over the other part thereby to define the lay of three parts of the wire rope and to anchor the three parts together. With this clamp, a joint is achieved that is stiff, strong and can also be without sharp elements.
  • the wire rope mesh is woven from a single wire rope without cuts.
  • the net has a high resilience.
  • the wire rope and the fastening means are made of steel.
  • the wire rope composition will assure both a high tensile strength and an adequate balance between flexibility and wear resistance.
  • the wire rope can be made from high carbon steel to achieve high tensile strength, while the fastening clamps can be made from low carbon steel for reasonable hardness and flexibility.
  • the wire rope has a diameter in the range of 3 to 8 mm.
  • the wire rope may have any configuration, such as a 7x7 or 6x7 configuration.
  • each wire is galvanized to provide corrosion protection.
  • the wire rope net according to the present invention may have any shape, for instance in the shape of rectangular, triangular or octagonal.
  • the area of one piece of wire rope net depends on the application: it can vary in the range of 1 m 2 to 100 m 2 , e.g. the length of one side of triangular or square net is in the range of 2 to 6 m.
  • the size of internal meshes can vary in the range of 10 cm to 100 cm, preferably in the range of 20 cm to 60 cm and more preferably in the range of 25 to 40 cm.
  • a method for producing above described wire rope net comprising the steps of: (a) Weave one or more wire ropes on the mounting table into a wire rope mesh panel, wherein three parts of said one or more wire ropes cross each other at at least some of intersections forming at least some of internal meshes in the form of triangular shape, (b) Dispose fastening means at at least some of the intersections, assuring their fixation and compactness by applying a pressing process.
  • the mounting table may have a triangular or rectangular frame as tabletop, wherein a plurality of guiding elements for weaving the wire rope are disposed on the triangular or rectangular frame.
  • the plurality of guiding elements is screws. More preferably, the plurality of guiding elements on the frame is spaced with equal distance.
  • one wire rope is applied to form one piece of wire rope net. The wire rope is woven into a wire rope mesh panel in such a way that there are no overlaps of lines of wire rope except intersections.
  • wire rope net according to the present invention can also be implemented within an anti-avalanche system, which can be regarded as a particular case of a standard protecting barrier. Besides, these nets can also be used within the field of aquaculture, as a measure to protect fishes from predators. Finally, there is the possibility to utilise them with architectural purposes, e.g. as part of the facade of a multi-storey parking in which achieving a low visual impact is a predominant criterion, or constituting the barriers of a footbridge.
  • Figure 1 schematically shows a triangular wire rope net according to the first embodiment of the present invention.
  • Figure 2 schematically shows a rectangular wire rope net according to the second embodiment of the present invention.
  • Figure 3 shows a triangular mounting table.
  • Figure 4 shows a weaving pattern of a triangular wire rope net.
  • Figure 5 illustrates equilateral triangular shaped internal meshes jointed with fastening clamps at intersections.
  • Figure 6 (a) and Figure 6 (b) shows respectively the outer and inner view of a piece of clamp according to the first embodiment of the present invention.
  • Figure 7 (a) and Figure 7 (b) shows respectively a piece of clamp making up the assembled joint clamp and the joint clamp in a wire rope net according to the first embodiment of the present invention.
  • Figure 8 shows a rectangular mounting table.
  • Figure 9 shows a weaving pattern of a rectangular wire rope net.
  • Figure 10 illustrates isosceles triangular shaped internal meshes jointed with fastening clamps at intersections.
  • Figure 1 1 (a) and Figure 1 1 (b) shows respectively the outer and inner view of a piece of clamp according to the second embodiment of the present invention.
  • Figure 12 (a) and Figure 12 (b) shows respectively a piece of clamp making up the assembled joint clamp and the joint clamp in a wire rope net according to the second embodiment of the present invention.
  • FIG. 1 schematically shows a triangular wire rope net according to the first embodiment of present invention.
  • the wire rope net 10 has a triangular shaped wire mesh panel 12 and the intersections of folded wire rope are fastened by fastening means 14.
  • the wire rope is a steel rope having a diameter of 5 mm and having a 7x7 configuration.
  • the internal meshes 16 are in the form of equilateral triangular shape.
  • FIG. 3 It starts off with the fabrication of a specially designed mounting table 30 as shown in Fig. 3.
  • Three UPN beams 31 ,32,33 are welded together to compose an equilateral triangular frame as a tabletop.
  • the table has three legs 34,35,36 in the form of a square chamfering shape.
  • the three vertices of the triangular frame respectively rest on three legs 34,35,36 of the table.
  • the legs of the table may also be fixed to the floor.
  • a series of screws 39 are placed over the beams, so that they act as a guide for the weaving of the panels.
  • the screws 39 on each beam 31 ,32,33 are spaced with equal distance.
  • wire rope is used to manufacture a mesh panel as the case requires.
  • the wire rope is guided and woven on the mounting table following a specific routine. The weaving steps are to be followed in order.
  • the guiding elements on the tabletop are indicated by numbers (1 -8 and 1 '-8') and letters (a-i).
  • the wire rope passes the guiding elements or points in the order of 0-0'-a-8-8'-i-0, 0-1 -1 '-b-7-7'-h-1 , 1 -2-2'-c-6-6'-g-2, 2-3-3'-d-5-5'-f-3,3-4-4'-e-4. It starts from point 0 and ends at point 4. There is no overlap of lines of wire ropes except at intersections.
  • the fastening clamps 52 are disposed preferably at every internal intersection, i.e. intersections inside the mesh panel except the intersections at the triangular frame of the mounting table.
  • FIG. 6 (a) and Fig. 6 (b) shows respectively the outer and inner view of a part or piece of clamp.
  • the fastening clamp is made of two identical parts or pieces 60, 60' jointed by six bendable or foldable tongues or pins 61 ,62,63,64,65,66 or 61 ',62',63',64',65',66'.
  • These bendable tongues or pins 61 ,62,63,64,65,66 or 61 ',62',63',64',65',66' are folded and inserted into the opposite symmetrical piece, and engageable over the other piece thus define the lay of three parts of the wire rope and to anchor the three parts together.
  • One piece of the clamp has three holes 67,68,69 adaptable for three tongues or pins on the opposite symmetrical piece.
  • the clamp preferably has six symmetrical convexities on surface viewed from the outside, each positioning between two tongues, for adapting or conforming parts of one or more wire ropes.
  • Fig. 7 (a) three parts of the wire rope are crossed at intersection 72.
  • the clamp 74 is assembled on the intersection 72 positioning the wire ropes individually in the convexities. By pressing process, two pieces of clamp are engaged and jointed, enclosing and protecting the three crossed lines of wire rope. The intersection is thus fixed and the mesh size of the wire rope net is guaranteed.
  • the wire rope net may be submitted to the pertinent laboratory tests in order to guarantee their correct behaviour.
  • wire rope nets are transported to installation site, where their final colocation will require a series of auxiliary elements.
  • auxiliary elements may vary among sewing cables, poles, different anchorage devices, bolts, spike plates or wire meshes.
  • the wire rope net may have a rectangular shape as shown in Fig. 2.
  • the wire rope net 20 has a rectangular shaped wire rope mesh panel 22 and the intersections of folded wire rope or wire ropes are fastened by fastening means 24.
  • the internal meshes 26 are in the form of isosceles triangular shape.
  • a mounting table with rectangular frame as a tabletop is designed accordingly as shown in Fig. 8.
  • the fabrication of the mounting table with rectangular tabletop is similar to the mounting table with triangular tabletop except the shape of tabletop.
  • the wire rope used to manufacture a mesh panel may be same as triangular wire rope net and preferably a single wire rope is used to form a piece of wire rope mesh panel.
  • the wire rope is guided and woven on the rectangular mounting table following a specific routine. As shown in Fig. 9, the guiding elements on the tabletop are indicated by numbers (1 -10 and 0'-10') and letters (a-e and a'-e').
  • the weaving steps are to be followed passing the guiding elements or points in order of: 0-0'-a- 2-b', b'-4'-c-6-d', d'-8'-e-10-10'-e', e'-8-d-6'-c'-4, 4-b-2'-a'-0, 0-10'-9'-1 - 2-8'-7'-3-4-6'-5'-5-6-4'-3'-7-8-2'-1 '-9-10-0'. It starts from point 0 and ends at point 0'. Also, there is no overlap of lines of wire ropes except at intersections.
  • the fastening clamps are subsequently applied on at least some of the intersections as shown in Fig. 10.
  • the configuration of the clamps is also adapted for the isosceles triangular shaped internal meshes.
  • the distribution of the convexities on each piece of clamp conforms to the locations of the wire rope at the intersections.
  • the angle a' between two neighboring convexities 1 12 and 1 14 as shown in Fig.1 1 (a) is substantially equal to the vertex angle a of isosceles triangular shaped internal mesh as shown in Fig. 10.
  • the angle ⁇ ' between two close convexities 1 14 and 1 16 as shown in Fig. 1 1 (a) is substantially equal to the base angle ⁇ of isosceles triangular shaped internal mesh as shown in Fig. 10.
  • intersections 122 of three parts of the wire rope are placed in the centre of the clamp 124 and are fixed and compacted by the clamps as shown in Fig. 12.
  • the tongues or pins 126 on the clamps after engaging the two pieces of clamps are further bent or folded onto the engaged piece. The clamps are thus locked and even more stable.
  • a rectangular wire rope net is thus formed with preferably a designed clamp at each intersection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)

Abstract

L'invention se rapporte à un filet en câble d'acier utilisé principalement pour la géotechnie, en particulier pour empêcher des instabilités de pente. Un filet en câble d'acier selon l'invention est destiné à fixer une surface et à fournir un support à ladite surface, ledit filet en câble d'acier comprenant un panneau à mailles en câble d'acier et une pluralité de moyens de fixation, ledit panneau à mailles en câble d'acier comprenant un ou plusieurs câbles en acier, ledit ou lesdits câbles en acier formant des intersections afin de former une pluralité de mailles internes, au moins une partie des intersections étant fixées par lesdits moyens de fixation, ledit filet étant caractérisé en ce qu'au niveau d'au moins une partie des intersections à l'intérieur dudit panneau à mailles en câble d'acier, trois parties dudit ou desdits câbles en acier se croisent et au moins une partie de ladite pluralité de mailles internes présente une forme triangulaire.
PCT/EP2015/052620 2014-02-25 2015-02-09 Filet en câble d'acier et procédé de fabrication d'un filet en câble d'acier WO2015128177A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR112016014009-5A BR112016014009B1 (pt) 2014-02-25 2015-02-09 Rede de cordoalhas e método para produzir uma rede de cordoalhas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14156539 2014-02-25
EP14156539.0 2014-02-25

Publications (1)

Publication Number Publication Date
WO2015128177A1 true WO2015128177A1 (fr) 2015-09-03

Family

ID=50193233

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/052620 WO2015128177A1 (fr) 2014-02-25 2015-02-09 Filet en câble d'acier et procédé de fabrication d'un filet en câble d'acier

Country Status (4)

Country Link
BR (1) BR112016014009B1 (fr)
CL (1) CL2016001686A1 (fr)
PE (1) PE20170396A1 (fr)
WO (1) WO2015128177A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017123816A1 (de) * 2017-10-12 2019-04-18 Geobrugg Ag Sicherheitsnetz
IT201900002793A1 (it) * 2019-02-27 2020-08-27 Isomet S R O Rete modulare ripiegabile a maglie diagonali e relativo metodo di produzione
CN111593743A (zh) * 2020-04-01 2020-08-28 安徽金联地矿科技有限公司 一种用于坡面生态修复的防护网定位组件
US11975381B2 (en) 2017-10-12 2024-05-07 Geobrugg Ag Wire netting system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE39174C (de) * KISSING & MÖLLMANN in Iserlohn Maschine zuf Herstellung voii Drahtgeflechten
GB410748A (en) * 1932-11-18 1934-05-18 William Barr Russell Improvements in and relating to wire trellis for training peas and other plants
CA654639A (en) * 1962-12-25 Grosmann Paul Wire rope cargo net
JP2004285591A (ja) * 2003-03-19 2004-10-14 Taiyo Kogyo Corp 法面成形用網体
EP1795279A1 (fr) * 2005-12-09 2007-06-13 Fatzer AG Drahtseilfabrik Treillis protective, en particulier pour la protection contre les chutes de pierres ou pour la consolidation d'une couche terrestre superficielle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE39174C (de) * KISSING & MÖLLMANN in Iserlohn Maschine zuf Herstellung voii Drahtgeflechten
CA654639A (en) * 1962-12-25 Grosmann Paul Wire rope cargo net
GB410748A (en) * 1932-11-18 1934-05-18 William Barr Russell Improvements in and relating to wire trellis for training peas and other plants
JP2004285591A (ja) * 2003-03-19 2004-10-14 Taiyo Kogyo Corp 法面成形用網体
EP1795279A1 (fr) * 2005-12-09 2007-06-13 Fatzer AG Drahtseilfabrik Treillis protective, en particulier pour la protection contre les chutes de pierres ou pour la consolidation d'une couche terrestre superficielle

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017123816A1 (de) * 2017-10-12 2019-04-18 Geobrugg Ag Sicherheitsnetz
AU2018350279B2 (en) * 2017-10-12 2021-05-20 Geobrugg Ag Safety net
US11180895B2 (en) 2017-10-12 2021-11-23 Geobrugg Ag Safety net
US11975381B2 (en) 2017-10-12 2024-05-07 Geobrugg Ag Wire netting system
IT201900002793A1 (it) * 2019-02-27 2020-08-27 Isomet S R O Rete modulare ripiegabile a maglie diagonali e relativo metodo di produzione
CN111593743A (zh) * 2020-04-01 2020-08-28 安徽金联地矿科技有限公司 一种用于坡面生态修复的防护网定位组件
CN111593743B (zh) * 2020-04-01 2021-08-17 安徽金联地矿科技有限公司 一种用于坡面生态修复的防护网定位组件

Also Published As

Publication number Publication date
PE20170396A1 (es) 2017-04-08
BR112016014009A2 (fr) 2017-08-08
CL2016001686A1 (es) 2016-12-09
BR112016014009B1 (pt) 2022-06-28

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