US20070131917A1 - Protective mesh, especially for rockfall protection or to stabilise a layer of soil - Google Patents

Protective mesh, especially for rockfall protection or to stabilise a layer of soil Download PDF

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Publication number
US20070131917A1
US20070131917A1 US11/636,089 US63608906A US2007131917A1 US 20070131917 A1 US20070131917 A1 US 20070131917A1 US 63608906 A US63608906 A US 63608906A US 2007131917 A1 US2007131917 A1 US 2007131917A1
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US
United States
Prior art keywords
wire
elements
wires
protective mesh
protective
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.)
Abandoned
Application number
US11/636,089
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English (en)
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
Original Assignee
Fatzer AG
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 Fatzer AG filed Critical Fatzer AG
Assigned to FATZER AG reassignment FATZER AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WARTMANN, STEPHAN BEAT
Publication of US20070131917A1 publication Critical patent/US20070131917A1/en
Abandoned 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 mesh, especially for rockfall protection or to stabilise a layer of soil, in accordance with the preamble of claim 1 .
  • a protective mesh of this type which is either laid out on the soil surface or can be fixed in an approximately vertical position on a slope, is disclosed in EP-B-0 979 329.
  • the protective mesh is braided out of helically curved wires in such a way that rhomboidal meshes are formed and in each case two adjacent helical wires are flexibly held together, so that the protective mesh can be folded or rolled up and takes up less room for storage and transport than ordinary wire netting.
  • the protective mesh is three-dimensional and has a thickness which amounts to a multiple of the thickness of the wire, due to the high tensile strength of the wires, even in stretched condition, which means that when used as a slope stabiliser, better conditions are produced for the fixation of layers of vegetation or to hold humus or sprayed layers on the covered ground.
  • the present invention is based on the problem of yet further improving a protective mesh of the aforementioned type and further increasing its force absorption capacity.
  • an essentially straight longitudinal reinforcement element is guided through the coupling area of the two helical wires or wire elements, i.e. through the intersecting curves thereof, causing the rhomboidal meshes to be divided into triangular meshes and with which the two wires or wire elements are in flexible connection.
  • the reinforcement elements greatly reduce deformations and distortions in the coupling areas A of the adjacent wires or wire elements (by up to 60% in comparison with the protective meshes of prior art from EP-B-0 979 329) and ensure that the radius of curvature of the helical wires or wire elements is retained to a very large extent in the contact area.
  • the inventive protective mesh also has increased lateral rigidity, which can be influenced by the choice of reinforcement elements.
  • the rhomboidal meshes can also be enlarged by comparison with the mesh according to EP-B-0 979 329, since the reinforcement elements ensure that the mesh size does not become over-large. This enables the manufacturing expense to be considerably reduced (by about 50%).
  • FIG. 1 an embodiment of an inventive wire mesh in top view
  • FIG. 2 an inventive wire mesh in diagrammatic perspectivel view, as slope stabiliser on a slope
  • FIG. 3 a cross-section through a part of the wire mesh according to FIG. 1 .
  • FIG. 1 shows a protective mesh 10 (or a part of such a protective mesh), in particular for rockfall protection structures or to stabilise a layer of earth, which is braided out of helically curved wires 11 , 12 , 13 , 14 , 15 , 16 .
  • the helically curved wires have an angle of twist ⁇ (preferably 25° to 35°) and a length L between two curves.
  • Two respectively adjacent wires 11 , 12 ; 12 , 13 ; 13 , 14 etc. are flexibly connected together in the area of their curves.
  • the connection area i.e. the area where the curves of two adjacent wires 11 , 12 , 13 , 14 , etc. intersect is designated in FIG. 1 by A.
  • a diagonal mesh with rhomboidal meshes 17 is formed by the wires 11 to 16 .
  • the wires 11 to 16 are curved over or fitted with loops 11 a, 12 a, 13 a, 14 a, 15 a, 16 a at their ends, and connected flexibly to each other by these in pairs. There may also be knots, i.e. still further windings may be wound around the loops.
  • the protective mesh 10 is pre-tensioned by cables 21 in its longitudinal extension and by soil and rock nails inserted at regular intervals with pre-tensioned fixing elements 20 placed on top, as also shown in FIG. 2 .
  • a wire or a cable 21 is looped into the helically curved selvedge wire 11 ( FIG. 1 ) located on the top and bottom end of the mesh 10 , said wire or cable being in turn stretched by the fixing elements 20 over the ground or similar.
  • the fixing elements 20 could, however, also hold the selvedge loops 11 ′ directly.
  • Soil or rock nails of prior art are used as fixing elements 20 , preferably distributed at regular intervals.
  • the protective mesh 10 is pre-tensioned by the cables 21 in its longitudinal extension.
  • an essentially straight longitudinal reinforcement element 31 , 32 , 33 , 34 , 35 is guided through the coupling area A of the two helical wires or wire elements, i.e. through the intersecting curves thereof, causing the rhomboidal meshes 17 to be divided into triangular meshes 17 a, 17 b and with which the two wires or wire elements are in flexible connection (the mesh form can take the form of e.g. isosceles or equilateral triangles).
  • all wire pairs are provided with reinforcement elements 31 to 35 , which are spaced at regular intervals from each other.
  • the reinforcement elements 31 to 35 which are formed by a wire in the embodiment shown, run transversely to the axis of longitudinal extension, and are curved over or fitted with a loop 31 a, 32 a, 33 a, 34 a, 35 a or a knot, at least at one end, while these lateral end elements are either flexibly connected with the corresponding end elements 11 a, 12 a; 13 a, 14 a; 15 a, 16 a of the wire pairs or with corresponding selvedge loops.
  • the end connection on both sides prevents the protective mesh being pushed together.
  • the protective mesh 10 has a thickness 10 ′ which is a multiple, preferably between 3 and 10 times the wire thickness. Even under tensile load, due to this design, the thickness and therefore this mattress-like structure of the protective mesh, is almost completely maintained, which makes a huge difference from other meshes, which mainly lose their original thickness under tensile stress. This, however, also enables the reinforcement elements 31 to 35 to be simply pushed into these curves, each formed from two wires.
  • the inventive protective mesh 10 can again easily be folded or rolled up for storage and transport, in which case, due to suitable formation of loops or knots at the wire ends, any snagging during rolling is largely prevented.
  • the inventive protective mesh 10 could, instead of individual helically curved wire, also be braided out of wire elements consisting of several wires, such as wire strands, wire cables or wire bundles or similar.
  • the reinforcement elements 31 to 35 could also consist of several wires and be designed as wire strands, wire cables or wire bundles or similar.
  • rod-shaped reinforcement elements preferably having a round cross-section, or tubular (or tube-like, closed and/or partly closed) reinforcement elements, which enable cables or other elements to be passed through.
  • Rod-shaped reinforcement elements with a semi-circular, triangular or similar cross-section, with a recess for the cables, could also be considered.
  • the reinforcement elements greatly reduce deformations and distortions in the coupling areas A of the adjacent wires or wire elements (by up to 60% in comparison with the protective meshes of prior art from EP-B-0 979 329) and ensure that the radius of curvature of the helical wires or wire elements is retained in the contact area.
  • these crucial areas of force transmission of the protective mesh there are now three instead of two wires or wire elements meeting, as the result of which the force absorption capacity of the protective mesh is substantially increased. Tests have shown that the breaking load in the main direction (axis of longitudinal extension) can be increased by up to 30%.
  • the inventive protective mesh also has increased lateral (acting in the transverse direction) rigidity, which can be influenced by the choice of reinforcement elements
  • the rhomboidal meshes can also be enlarged by comparison with the mesh according to EP-B-0 979 329, since the reinforcement elements ensure that the mesh size does not become over-large. This enables the manufacturing expense to be considerably reduced (by about 50%).
  • Both the helically curved wires or wire elements forming the protective mesh and the straight reinforcement elements are made of steel and are usually corrosion-protected in various ways (Zn, Zn—Al coated, stainless steel, plastified, etc.)
  • the helically curved wires or wire elements (wire strands, wire cables or wire bundles) and/or the straight reinforcement elements are made at least partly from high-tensile steel with a nominal tensile strength of between 1,000 and 3,000 N/mm 2 (DIN norm 2078), in which case these may also be spring steel wires according to DIN norm 17223.
  • the protective mesh may also consist at least in part of a steel with lesser strength. It is especially advantageous to combine helically curved wires or wire elements made from a high tensile strength steel with reinforcement elements made from a steel with a lesser strength, in which case, when the latter is being installed, due to its permanent deformation, a terrain adaptation or “conformity” to the surface of the terrain and thus to unevenness in the terrain can be undertaken. It is equally possible to enhance the deformation reduction still further by selective local pre-deformation of these wire elements.

Landscapes

  • 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)
US11/636,089 2005-12-09 2006-12-07 Protective mesh, especially for rockfall protection or to stabilise a layer of soil Abandoned US20070131917A1 (en)

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
US20070131917A1 true US20070131917A1 (en) 2007-06-14

Family

ID=37839484

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/636,089 Abandoned US20070131917A1 (en) 2005-12-09 2006-12-07 Protective mesh, especially for rockfall protection or to stabilise a layer of soil

Country Status (7)

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

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080164379A1 (en) * 2007-01-10 2008-07-10 Stephan Beat Wartmann Device for Defense from Projectiles, Particularly Shaped Charge Projectiles
US20100294124A1 (en) * 2006-12-22 2010-11-25 Nederlandse Organisatie Voor Toegepast Natuurwetenschappelijk Onderzoek Trio Method and device for protecting objects against rocket propelled grenades (rpgs)
US20110044770A1 (en) * 2007-07-09 2011-02-24 The University Of Western Australia Mesh system
US20130299040A1 (en) * 2008-10-28 2013-11-14 Geobrugg Ag Method for producing a net, in particular for a basket for pisciculture
US20150041599A1 (en) * 2012-02-24 2015-02-12 Geobrugg Ag Net, in particular for protection, safety, water-rearing or architectural purposes, and an apparatus for producing the net
JP2016121432A (ja) * 2014-12-24 2016-07-07 東京製綱株式会社 厚金網及びその編網方法
EP3202924A1 (de) * 2016-02-04 2017-08-09 NV Bekaert SA Schutzzäune
AU2018200123B1 (en) * 2017-01-30 2018-07-26 Geobrugg Ag Wire netting and method for producing a helix for a wire netting
US10058909B2 (en) * 2017-01-30 2018-08-28 Geobrugg Ag Wire netting and method for producing a helix for a wire netting
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
AU2018213793B2 (en) * 2017-01-30 2020-03-12 Geobrugg Ag Wire mesh and method for identifying a suitable wire
US20200283972A1 (en) * 2016-11-27 2020-09-10 Amos Klein Protective structure
US11181466B2 (en) * 2017-10-12 2021-11-23 Geobrugg Ag Monitoring device and method for monitoring corrosion of a wire mesh
US11180895B2 (en) * 2017-10-12 2021-11-23 Geobrugg Ag Safety net

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009086961A1 (en) * 2008-01-04 2009-07-16 Nv Bekaert Sa Chain link woven mesh with double knot
CH703929B1 (de) * 2010-10-12 2014-11-14 Geobrugg Ag Schutznetz vorzugsweise für eine Böschungssicherung.
CN103272971A (zh) * 2013-04-26 2013-09-04 浙江海洋学院 防汛金属网兜的锁边工艺
PE20170396A1 (es) * 2014-02-25 2017-04-08 Nv Bekaert S A Red de cuerda de alambre y metodo para producir una red de cuerda de alambre
JP2016037773A (ja) * 2014-08-08 2016-03-22 東亜グラウト工業株式会社 金網
DE202014007521U1 (de) 2014-09-10 2014-11-28 Internationale Geotextil GmbH Schutznetz für Steinschlagschutz und Erosionsschutz aus Basaltfasern
CH710263A2 (de) * 2014-10-16 2016-04-29 Geobrugg Ag Auffangnetz insbesondere für Steinschlag- oder Lawinenverbauungen.
CN104294833A (zh) * 2014-10-22 2015-01-21 贵州正业工程技术投资有限公司 岩堆整体补强加固结构
CH711251B1 (de) * 2015-06-19 2019-02-15 Geobrugg Ag Gitterstruktur.
PL235814B1 (pl) * 2018-06-15 2020-10-19 Ryszard Odziomek Druciana plecionka oraz sposób i urządzenie do wytwarzania drucianej plecionki
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US868244A (en) * 1906-10-11 1907-10-15 American Steel Wire Company Wire fabric.
US2172112A (en) * 1938-07-29 1939-09-05 Keystone Steel & Wire Co Wire fence
US6279858B1 (en) * 1998-02-25 2001-08-28 Fatzer Ag Woven wire netting for protection against rock falls or for securing a top layer of soil, and method and device for producing same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
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DE254852C (de) *
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
JPS5961344U (ja) * 1982-10-14 1984-04-21 ライト工業株式会社 法面保護工用補強材
JPH073797A (ja) * 1991-09-30 1995-01-06 Takiron Co Ltd 盛土用枠体と盛土の施工方法
CN2499682Y (zh) * 2001-08-24 2002-07-10 张龙萌 多功能组合式钢栅
CN2561822Y (zh) * 2002-05-24 2003-07-23 欧明六 精制组合型格栅
JP2004025459A (ja) * 2002-06-21 2004-01-29 Takiron Co Ltd 樹脂被覆鉄線
JP3720332B2 (ja) * 2003-03-19 2005-11-24 太陽工業株式会社 法面成形用網体
AT412356B (de) * 2003-04-02 2005-01-25 Krismer Josef Gitterkonstruktion
KR100439417B1 (ko) * 2003-06-17 2004-07-09 허수영 개비온 단위체와 이것을 포함한 개비온 철망

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US868244A (en) * 1906-10-11 1907-10-15 American Steel Wire Company Wire fabric.
US2172112A (en) * 1938-07-29 1939-09-05 Keystone Steel & Wire Co Wire fence
US6279858B1 (en) * 1998-02-25 2001-08-28 Fatzer Ag Woven wire netting for protection against rock falls or for securing a top layer of soil, and method and device for producing same

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8857309B2 (en) 2006-12-22 2014-10-14 Cyril Maurice Wentzel Method and device for protecting objects against rocket propelled grenades (RPGs)
US20100294124A1 (en) * 2006-12-22 2010-11-25 Nederlandse Organisatie Voor Toegepast Natuurwetenschappelijk Onderzoek Trio Method and device for protecting objects against rocket propelled grenades (rpgs)
US7975594B2 (en) * 2007-01-10 2011-07-12 Fatzer Ag Device for defense from projectiles, particularly shaped charge projectiles
US20080164379A1 (en) * 2007-01-10 2008-07-10 Stephan Beat Wartmann Device for Defense from Projectiles, Particularly Shaped Charge Projectiles
US20110044770A1 (en) * 2007-07-09 2011-02-24 The University Of Western Australia Mesh system
US8696251B2 (en) * 2007-07-09 2014-04-15 The University Of Western Australia Mesh system
US9452467B2 (en) * 2008-10-28 2016-09-27 Geobrugg Ag Method for producing a net, in particular for a basket for pisciculture
US20130299040A1 (en) * 2008-10-28 2013-11-14 Geobrugg Ag Method for producing a net, in particular for a basket for pisciculture
US9333553B2 (en) * 2012-02-24 2016-05-10 Geobrugg Ag Net, in particular for protection, safety, water-rearing or architectural purposes, and an apparatus for producing the net
US20150041599A1 (en) * 2012-02-24 2015-02-12 Geobrugg Ag Net, in particular for protection, safety, water-rearing or architectural purposes, and an apparatus for producing the net
JP2016121432A (ja) * 2014-12-24 2016-07-07 東京製綱株式会社 厚金網及びその編網方法
EP3202924A1 (de) * 2016-02-04 2017-08-09 NV Bekaert SA Schutzzäune
US20200283972A1 (en) * 2016-11-27 2020-09-10 Amos Klein Protective structure
US10968580B2 (en) * 2016-11-27 2021-04-06 Amos Klein Protective structure
US10058909B2 (en) * 2017-01-30 2018-08-28 Geobrugg Ag Wire netting and method for producing a helix for a wire netting
AU2018213793B2 (en) * 2017-01-30 2020-03-12 Geobrugg Ag Wire mesh and method for identifying a suitable wire
US10145045B2 (en) 2017-01-30 2018-12-04 Geobrugg Ag Wire netting and method for producing a helix for a wire netting
AU2018200123B1 (en) * 2017-01-30 2018-07-26 Geobrugg Ag Wire netting and method for producing a helix for a wire netting
US11181466B2 (en) * 2017-10-12 2021-11-23 Geobrugg Ag Monitoring device and method for monitoring corrosion of a wire mesh
US11180895B2 (en) * 2017-10-12 2021-11-23 Geobrugg Ag Safety net
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

Also Published As

Publication number Publication date
ATE429988T1 (de) 2009-05-15
EP1795279A1 (de) 2007-06-13
CN1978790A (zh) 2007-06-13
JP2007162456A (ja) 2007-06-28
CH698850B1 (de) 2009-11-13
CN1978790B (zh) 2012-09-05
DE502006003595D1 (de) 2009-06-10
EP1795279B1 (de) 2009-04-29

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Legal Events

Date Code Title Description
AS Assignment

Owner name: FATZER AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WARTMANN, STEPHAN BEAT;REEL/FRAME:018800/0938

Effective date: 20061221

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION