EP0021467B1 - Woven mat - Google Patents

Woven mat Download PDF

Info

Publication number
EP0021467B1
EP0021467B1 EP80200447A EP80200447A EP0021467B1 EP 0021467 B1 EP0021467 B1 EP 0021467B1 EP 80200447 A EP80200447 A EP 80200447A EP 80200447 A EP80200447 A EP 80200447A EP 0021467 B1 EP0021467 B1 EP 0021467B1
Authority
EP
European Patent Office
Prior art keywords
mat
warp
woven
ballast
binding
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.)
Expired
Application number
EP80200447A
Other languages
German (de)
French (fr)
Other versions
EP0021467A1 (en
Inventor
Jan Timmerman
Harm Last
Gerrit Eenkhoorn
Gerrit Timmerman
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.)
ROBUTEL B.V.
TIMMATRA B.V.
Original Assignee
Robutel BV
Timmatra BV
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 Robutel BV, Timmatra BV filed Critical Robutel BV
Publication of EP0021467A1 publication Critical patent/EP0021467A1/en
Application granted granted Critical
Publication of EP0021467B1 publication Critical patent/EP0021467B1/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
    • E02B3/126—Flexible prefabricated covering elements, e.g. mats, strips mainly consisting of bituminous material or synthetic resins

Definitions

  • the invention relates to a woven mat for ground or embankment covering, mattresses and the like consisting of a tissue of synthetic warp and weft yarns.
  • a woven mat for ground or embankment covering, mattresses and the like consisting of a tissue of synthetic warp and weft yarns.
  • Such a mat is known from: "Kust- en Oeverwerken", by Ing. M. E. Bekker and lr. J. de Boer, page 57, 1977 Stam Tech- nische Boeken B. V. Culemborg, first published 1974.
  • Such a mat is frequently used as a base for ground or embankment covering, in which a ballast or withy is arranged on the mat with the aid of the appropriate binding or bonding means.
  • a ballast or withy is arranged on the mat with the aid of the appropriate binding or bonding means.
  • the invention has for its object to provide a woven mat of high tensile strength, which can be made in a simple manner on a loom.
  • the mat according to the invention is distinguished in that some warp yarns are replaced by a twined steel cable.
  • the twined steel cable proposed by the invention imparts to the mat the required tensile strength and, in addition, owing to the greater rigidity as compared with the synthetic resin yarns it directly becomes a solid warp during the weaving operation, that is to say this warp in contrast to the binding warp is not bent in zigzag fashion about the weft yarns and is hardly likely to lengthen.
  • the steel cable employed in accordance with the invention may be left- or right-woven and any suitable construction of the steel cable may be used, for example, the Lang's lay cables or regular lay cables.
  • FR-A-1 559 879 discloses a woven mat of straps or bands of fabric strengthened by means of wires extending in both warp and weft directions.
  • steel cables are employed in the mat according to the present invention which are woven in just one, (the warp) direction.
  • the invention furthermore proposes to provide the synthetic binder warps located at the side of the solid metal warp in a diameter corresponding to said solid metal warp. This will result in a more gradual change-over from the weft wires from the normal mat tissue to the metal warp, which is at the same time conductive to the density of the mat tissue so that a more uniform permeability of the mat to water is ensured.
  • binding or bonding means are woven during manufacture thereof, said binding or bonding means serving for fastening withies or other ballast material, for example, cast concrete blocks on the mat.
  • the invention proposes to pass the binding or bonding means along the rear side of the solid metal warp with respect to the ballast side of the mat, to cause the solid warp on the ballast side of the mat to float with respect to the mat tissue at regular intervals. Owing to this measure the forces exerted on the withy or the ballast will be substantially directly transferred to the strong metal warp wires.
  • the floating steel wire portions may then be used for fastening ballast material by passing bonding means in between the mat and the steel wire.
  • the mat may have any suitable shape and any known weaving technique may be employed for obtaining certain, known weaving structure.

Description

  • The invention relates to a woven mat for ground or embankment covering, mattresses and the like consisting of a tissue of synthetic warp and weft yarns. Such a mat is known from: "Kust- en Oeverwerken", by Ing. M. E. Bekker and lr. J. de Boer, page 57, 1977 Stam Tech- nische Boeken B. V. Culemborg, first published 1974.
  • Such a mat is frequently used as a base for ground or embankment covering, in which a ballast or withy is arranged on the mat with the aid of the appropriate binding or bonding means. In view of the ever large units dragged from the homestead or factory to the place of destination the mats must have an ever increasing tensile strength.
  • Attempts have been made to manufacture composite structures consisting of a synthetic mat with metal gauze. The manufacture of such structures is expensive.
  • The invention has for its object to provide a woven mat of high tensile strength, which can be made in a simple manner on a loom.
  • The mat according to the invention is distinguished in that some warp yarns are replaced by a twined steel cable.
  • The twined steel cable proposed by the invention imparts to the mat the required tensile strength and, in addition, owing to the greater rigidity as compared with the synthetic resin yarns it directly becomes a solid warp during the weaving operation, that is to say this warp in contrast to the binding warp is not bent in zigzag fashion about the weft yarns and is hardly likely to lengthen.
  • Thus the woven mat maintains a given amount of flexibility so that it can match unevennesses of the ground. The steel cable employed in accordance with the invention may be left- or right-woven and any suitable construction of the steel cable may be used, for example, the Lang's lay cables or regular lay cables.
  • FR-A-1 559 879 discloses a woven mat of straps or bands of fabric strengthened by means of wires extending in both warp and weft directions. By contrast, steel cables are employed in the mat according to the present invention which are woven in just one, (the warp) direction.
  • Particularly for the case of comparatively thick warp wires of metal or thick steel cables the invention furthermore proposes to provide the synthetic binder warps located at the side of the solid metal warp in a diameter corresponding to said solid metal warp. This will result in a more gradual change-over from the weft wires from the normal mat tissue to the metal warp, which is at the same time conductive to the density of the mat tissue so that a more uniform permeability of the mat to water is ensured.
  • In hydraulic engineering woven mats have been employed in which binding or bonding means are woven during manufacture thereof, said binding or bonding means serving for fastening withies or other ballast material, for example, cast concrete blocks on the mat.
  • For such a mat the invention proposes to pass the binding or bonding means along the rear side of the solid metal warp with respect to the ballast side of the mat, to cause the solid warp on the ballast side of the mat to float with respect to the mat tissue at regular intervals. Owing to this measure the forces exerted on the withy or the ballast will be substantially directly transferred to the strong metal warp wires. The floating steel wire portions may then be used for fastening ballast material by passing bonding means in between the mat and the steel wire.
  • Irrespective of the above mentioned features the mat may have any suitable shape and any known weaving technique may be employed for obtaining certain, known weaving structure.

Claims (5)

1. A woven mat for ground or embankment covering, mattresses and the like, consisting of a tissue of synthetic warp and weft threads characterized in that some warp threads are replaced by a twined steel cable.
2. A mat as claimed in claim 1 characterized in that the synthetic binding warps located at the side of the solid metal warp have a diameter corresponding to said metal warp.
3. A mat comprising woven binding or bonding means for the arrangement of withies or ballast as claimed in any one of the preceding claims characterized in that the binding or bonding means extend along the rear side of the metal warp with respect to the ballast side of the mat and the solid warp on the ballast side of the mat is floating with respect to the mat tissue at regular intervals.
4. A ground or embankment covering comprising a woven mat as claimed in any one of the preceding claims.
5. A mattress comprising a woven mat as claimed in any one of claims 1 to 3.
EP80200447A 1979-06-15 1980-05-12 Woven mat Expired EP0021467B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7904691 1979-06-15
NL7904691A NL7904691A (en) 1979-06-15 1979-06-15 WOVEN MAT WITH NUMBER OF FIXED METAL CHAIN WIRES.

Publications (2)

Publication Number Publication Date
EP0021467A1 EP0021467A1 (en) 1981-01-07
EP0021467B1 true EP0021467B1 (en) 1985-02-20

Family

ID=19833363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80200447A Expired EP0021467B1 (en) 1979-06-15 1980-05-12 Woven mat

Country Status (3)

Country Link
EP (1) EP0021467B1 (en)
DE (1) DE3070200D1 (en)
NL (1) NL7904691A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57140148A (en) * 1981-02-26 1982-08-30 Hasegawa Kagaku Kogyo Kk Plastic reinforcing material
BE1001293A3 (en) * 1987-09-15 1989-09-19 Uco Nv Sa GEOTEXTILES PRODUCT FOR applicat SSING IN EARTHWORKS AND rodent resistance.
CN1036374C (en) * 1992-09-28 1997-11-12 王广武 Metal fiber curtain cloth
DE9400650U1 (en) * 1994-01-15 1994-03-17 Radtke Johannes Composite mat, especially for rock, embankment and landfill construction
AR051271A1 (en) * 2004-07-22 2007-01-03 Extenday Ip Ltd MATERIAL FOR TREATMENT OF PLANTS.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR842050A (en) * 1938-08-12 1939-06-05 Reinforced fabric and its manufacturing process
FR1125539A (en) * 1955-04-29 1956-10-31 Reinforced fabric for the manufacture of cushions, spring mattresses and other applications
FR1396549A (en) * 1964-03-13 1965-04-23 Martel Catala & Cie Ets Improvements made to the means for the production of endless belts woven with plastic threads and metallic threads, as well as the corresponding bands
FR1559879A (en) * 1968-02-14 1969-03-14
GB1475682A (en) * 1974-07-19 1977-06-01 Intrusion Prepakt Ltd Construction of protective covering layers

Also Published As

Publication number Publication date
NL7904691A (en) 1980-12-17
DE3070200D1 (en) 1985-03-28
EP0021467A1 (en) 1981-01-07

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