US20160145816A1 - Net for Securing Rocks and Rock Slopes - Google Patents

Net for Securing Rocks and Rock Slopes Download PDF

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Publication number
US20160145816A1
US20160145816A1 US14/900,619 US201414900619A US2016145816A1 US 20160145816 A1 US20160145816 A1 US 20160145816A1 US 201414900619 A US201414900619 A US 201414900619A US 2016145816 A1 US2016145816 A1 US 2016145816A1
Authority
US
United States
Prior art keywords
net according
individual
net
ropes
rope
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
US14/900,619
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English (en)
Inventor
Marcel FULDE
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.)
PFEIFER ISOFER AG
Original Assignee
PFEIFER ISOFER 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
Priority claimed from DE202013102795.2U external-priority patent/DE202013102795U1/de
Priority claimed from DE202014101406.3U external-priority patent/DE202014101406U1/de
Application filed by PFEIFER ISOFER AG filed Critical PFEIFER ISOFER AG
Assigned to PFEIFER ISOFER AG reassignment PFEIFER ISOFER AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Fulde, Marcel
Publication of US20160145816A1 publication Critical patent/US20160145816A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines
    • E02D17/202—Securing of slopes or inclines with flexible securing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/23—Dune restoration or creation; Cliff stabilisation

Definitions

  • the invention relates to a net as a catching net for securing rocks and rock slopes, falling rock, mudflow or similar natural hazards.
  • EP 0 979 239 B2 describes a wire mesh for a falling rock guard or for securing an earth surface layer.
  • the wire mesh preferably consists of high-strength steel wires, which are stranded to steel cords.
  • the wire mesh is formed of a tetragonal diagonal mesh structure, the single meshes each constituting a rhomboid.
  • the individual steel cords essentially extend in a zigzag-shape at a preferred angle of inclination of approximately 30°, which causes—due to the fact that the individual wires are wound around each other at the mesh crossing points—a deflection of the individual wires in the range of 120°; this is detrimental in particular in regard to the resistance to fracture and breaking.
  • a wire mesh according to DE 23 27 005 B2 having also essentially rhomboidal meshes, two wires each meet at the mesh crossing points at an angle of inclination of approximately 30°, wherein one of these wires is pulled at an angle of deflection in a range of approximately 120° through a loop formed by the second wire which has a very detrimental bending angle in the region between 240° to 270°.
  • the tetragonal wire mesh may be made of any plastically deformable material, especially bright or coated steel or aluminium wire.
  • the net contains filament-yarns of the group of non-metallic multi- and/or mono-filament yarns which are combined together free of knots.
  • non-metallic mono- and/or multifilament yams results in a considerable weight reduction and improved draping possibilities compared to steel wire nets or biaxial (polymer) fiber nets.
  • UHMWPE ultra high molecular weight polyethylene
  • UHMWPE ultra high molecular weight polyethylene
  • This material is suited especially for nets for securing rocks and rock slopes due to its excellent resistance to wear and abrasion, a high impact resistance and notch impact resistance (even at temperatures up to 150 ° C.), a low absorption of humidity, and a high resistance against chemicals. It is furthermore anti-adhesive and prevents caking.
  • fibers having a filament tensile strength of 3,000 to 4,000 N/mm 2 are used.
  • the net preferably has a net tensile strength of >150 kN/m.
  • the net preferably contains twisted yarns having titers of 1,200 to 1,800 dtex, especially 1,450 to 1,550 dtex, particularly 1,500 dtex.
  • An appropriate coating is provided for abrasion-protective and UV-protective purposes.
  • the net according to the present invention is advantageously characterized in that it is used as a safety net for securing slopes, rock slopes, and hazardous falling rock zones.
  • the net preferably contains protective elements for the fiber-protective fastening by means of clamping elements and/or rod anchors to the rock and slop areas to be secured.
  • the net according to the present invention is characterized in that it has a high elasticity and a high dimensional stability, while due to the continuous material ropes a high load bearing capacity is ensured.
  • an individual rope which passes through a crossing point without directional change is deflected in the area of the following crossing points and meets an individual rope which has been deflected at the preceding crossing point so as to change its direction.
  • Each individual rope is comprised preferably of a plurality of individual filaments or individual threads, which preferably are stranded, braided, twisted or are laid largely parallel to each other.
  • Each material rope preferably is comprised of at least two individual ropes, which preferably are stranded, braided, twisted or are laid largely parallel to each other.
  • the individual ropes and thus the material ropes preferably contain in particular filaments made of textile material, synthetic and/or natural as well as mineral fibers.
  • FIG. 1 shows a plan view of the net according to the invention
  • FIG. 2 shows an enlarged view of the detail identified by reference character I in FIG. 1 in the area of a mesh crossing point.
  • FIG. 2 shows two material ropes A and B which contain, as starting material, at least two individual ropes A 1 , A 2 or B 1 , B 2 that are stranded or twisted with each other.
  • the two individual ropes A 1 and B 1 pass through the crossing point I without directional change.
  • the two individual ropes A 2 and B 2 are deflected in the area of this crossing point and are combined behind the crossing point with the individual rope A 1 or B 1 which has passed through the crossing point without deflection.
  • Each material rope A and B preferably contains more than two individual ropes, preferably up to six individual ropes, wherein preferably at least one individual rope of a material rope passes through the crossing point without directional change whereas at least one individual rope of a material rope is deflected in the area of the crossing point.
  • each individual rope passing through a crossing point without directional change can be deflected in the area of the next crossing point or in the area of the crossing point after next.
  • the material ropes A and B meet each other in the area of oppositely situated crossing points at an angle ⁇ of 15° to 90°, preferably 30° to 70°.
  • Each material rope A and B may contain individual ropes and also individual threads made of textile material, synthetic and/or natural fibers as well as mineral fibers, especially basalt fibers, and individual wires, wire bundles, wire strands or wire cords made of metal, in particular steel or aluminium
  • Each individual rope may contain a plurality of filaments and/or wires that are stranded. braided. twisted or laid largely parallel to each other.
  • the crossing points are at a distance “x” in a first direction in the range of 130 mm-160 mm, preferably 145 mm, and, in the other direction, at a distance “y” of 60 mm-80 mm, preferably 70 mm.
  • the average diameter of each individual rope is preferably 2.5 mm-4 mm, especially 3 mm, wherein other dimensions are possible according to conditions of use.
  • the manufacture of the net may be performed on a buttonhole braider.
  • the individual ropes and the material ropes may be stabilized by a finishing agent.
  • a finishing agent for example, thermoplastics may be used for stabilizing the mesh crossing points or/and the ends of the net.
  • the net contains mesh crossing points which are glued, welded and. or clamped to each other.
  • the meshwork structure of the net is preferably Raschel knitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paleontology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (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)
  • Knitting Of Fabric (AREA)
US14/900,619 2013-06-27 2014-06-24 Net for Securing Rocks and Rock Slopes Abandoned US20160145816A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE202013102795.2 2013-06-27
DE202013102795.2U DE202013102795U1 (de) 2013-06-27 2013-06-27 Viereckige Maschen aufweisendes, geflochtenes Maschennetz
DE202014101406.3U DE202014101406U1 (de) 2014-03-26 2014-03-26 Maschennetz für die Fels- und Felsböschungssicherung
DE202014101406.3 2014-03-26
PCT/IB2014/001163 WO2014207535A1 (de) 2013-06-27 2014-06-24 Maschennetz für die fels- und felsböschungssicherung

Publications (1)

Publication Number Publication Date
US20160145816A1 true US20160145816A1 (en) 2016-05-26

Family

ID=51357960

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/900,619 Abandoned US20160145816A1 (en) 2013-06-27 2014-06-24 Net for Securing Rocks and Rock Slopes

Country Status (6)

Country Link
US (1) US20160145816A1 (es)
EP (1) EP3013496B1 (es)
JP (1) JP2016523324A (es)
ES (1) ES2679519T3 (es)
PL (1) PL3013496T3 (es)
WO (1) WO2014207535A1 (es)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107938159A (zh) * 2017-12-18 2018-04-20 太和县双飞绳业有限公司 一种耐酸碱聚乙烯纤维绳网的制备方法
US20180195284A1 (en) * 2015-06-19 2018-07-12 Geobrugg Ag Lattice structure and a device and method for producing same
US20190292737A1 (en) * 2016-10-31 2019-09-26 Tokyo Rope Manufacturing Co., Ltd. High-strength wire mesh and rock fall prevention net

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115162221A (zh) * 2016-10-14 2022-10-11 杜邦公司 用于隧道中拦截落石的防护网
IT201600127800A1 (it) * 2017-01-31 2018-07-31 Geoflum Eng Srl Paramento per strutture di rinforzo per terreni, rilevati e fronti di scavo.
JP6874056B2 (ja) * 2019-06-06 2021-05-19 東京製綱株式会社 高強度金網及び落石予防網

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5795835A (en) * 1995-08-28 1998-08-18 The Tensar Corporation Bonded composite knitted structural textiles
US6738265B1 (en) * 2000-04-19 2004-05-18 Nokia Mobile Phones Ltd. EMI shielding for portable electronic devices
US20110013992A1 (en) * 2008-02-27 2011-01-20 Tomohiro Fujii Structure for preventing rockfall, a rockfall prevention method, and a method for designing said structure

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5423886U (es) * 1977-07-19 1979-02-16
JPH0197251A (ja) * 1987-10-07 1989-04-14 Hakodate Fishing Net & Chandlery Mfg Co Ltd 無結節網及びその製造方法
JPH04250206A (ja) * 1990-11-26 1992-09-07 Mitsui Petrochem Ind Ltd 落石防止用ネット
JP2000297434A (ja) * 1996-12-04 2000-10-24 Civil:Kk 落石防止工法
CH692921A5 (de) 1998-02-25 2002-12-13 Fatzer Ag Drahtgeflecht vorzugsweise als Steinschlagschutz oder für die Sicherung einer Erdoberflächenschicht.
JP2000106810A (ja) * 1998-10-06 2000-04-18 Nakada Sangyo Kk 獣害防止用ネット
CH697096A5 (de) * 2004-06-08 2008-04-30 Fatzer Ag Schutznetz, insbesondere für einen Steinschlagschutz oder für eine Böschungssicherung.
JP5095551B2 (ja) * 2008-08-05 2012-12-12 有限会社ハルテック 落石防護用編地及びそれを用いた落石防護柵
JP4866892B2 (ja) * 2008-10-29 2012-02-01 帝人ファイバー株式会社 衝撃吸収ネット及びそれを用いた防護体
CN202023196U (zh) * 2011-02-25 2011-11-02 江西省交通科学研究院 一种玄武岩纤维复合筋网与锚间加固条联合的边坡稳定装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5795835A (en) * 1995-08-28 1998-08-18 The Tensar Corporation Bonded composite knitted structural textiles
US6738265B1 (en) * 2000-04-19 2004-05-18 Nokia Mobile Phones Ltd. EMI shielding for portable electronic devices
US20110013992A1 (en) * 2008-02-27 2011-01-20 Tomohiro Fujii Structure for preventing rockfall, a rockfall prevention method, and a method for designing said structure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180195284A1 (en) * 2015-06-19 2018-07-12 Geobrugg Ag Lattice structure and a device and method for producing same
US10604932B2 (en) * 2015-06-19 2020-03-31 Geobrugg Ag Lattice structure and a device and method for producing same
US20190292737A1 (en) * 2016-10-31 2019-09-26 Tokyo Rope Manufacturing Co., Ltd. High-strength wire mesh and rock fall prevention net
US20200018023A1 (en) * 2016-10-31 2020-01-16 Tokyo Rope Manufacturing Co., Ltd. High-strength wire mesh and rock fall prevention net
EP3533931A4 (en) * 2016-10-31 2021-05-19 Tokyo Rope Mfg. Co., Ltd. HIGH STRENGTH WIRE GRID AND NET TO PREVENT STONE CHIPS
CN107938159A (zh) * 2017-12-18 2018-04-20 太和县双飞绳业有限公司 一种耐酸碱聚乙烯纤维绳网的制备方法

Also Published As

Publication number Publication date
JP2016523324A (ja) 2016-08-08
EP3013496A1 (de) 2016-05-04
PL3013496T3 (pl) 2019-01-31
EP3013496B1 (de) 2018-05-30
WO2014207535A1 (de) 2014-12-31
WO2014207535A4 (de) 2015-02-26
ES2679519T3 (es) 2018-08-28

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Legal Events

Date Code Title Description
AS Assignment

Owner name: PFEIFER ISOFER AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FULDE, MARCEL;REEL/FRAME:037346/0066

Effective date: 20151210

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE