EP0636747A1 - Verfahren zur kontrollierten Umwandlung und Verwendung von Fasern in situ in Tief- und Strassenbau - Google Patents

Verfahren zur kontrollierten Umwandlung und Verwendung von Fasern in situ in Tief- und Strassenbau Download PDF

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Publication number
EP0636747A1
EP0636747A1 EP93500117A EP93500117A EP0636747A1 EP 0636747 A1 EP0636747 A1 EP 0636747A1 EP 93500117 A EP93500117 A EP 93500117A EP 93500117 A EP93500117 A EP 93500117A EP 0636747 A1 EP0636747 A1 EP 0636747A1
Authority
EP
European Patent Office
Prior art keywords
fibres
fibre
band
civil
procedure
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.)
Granted
Application number
EP93500117A
Other languages
English (en)
French (fr)
Other versions
EP0636747B1 (de
Inventor
Manuel Borras Puig
José Ma Cancer Rufas
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.)
COURTAULDS ESPANA SA
Original Assignee
COURTAULDS ESPANA SA
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 COURTAULDS ESPANA SA filed Critical COURTAULDS ESPANA SA
Priority to EP93500117A priority Critical patent/EP0636747B1/de
Priority to AT93500117T priority patent/ATE163208T1/de
Priority to DE69316979T priority patent/DE69316979T2/de
Publication of EP0636747A1 publication Critical patent/EP0636747A1/de
Application granted granted Critical
Publication of EP0636747B1 publication Critical patent/EP0636747B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/005—Soil-conditioning by mixing with fibrous materials, filaments, open mesh or the like

Definitions

  • the object of the present invention comprises a procedure for the controlled transformation and application of fibres in situ in civil and road constructions.
  • These fibres are manufactured in large fibre-producing plants which are remote from the construction sites and mixing stations, and from where they are served in bags, the form in which they arrive there. Once there, the mixture is made manually in the mixing station by one or more operators who constantly feed the station from the bags of manufactured fibres or by pouring them manually into dispensing devices.
  • the present invention substantially improves the procedures for the incorporation of fibres in road and civil construction stations which are currently used.
  • said procedure enables the fibre to be manufactured on site, personalizing its properties according to the requirements at every moment such that it is possible to vary said properties at any time in an exceptionally simple way. Furthermore, it makes it possible to continuously feed the mixing station automatically, without the intervention of any personnel, ensuring a perfectly homogeneous product at all times.
  • the novel procedure for the controlled transformation and application of fibres in civil and road constructions comprises three phases.
  • the first of these consists of unwinding the ball of raw fibre to produce a continuous strand or sheet of material of uniform tension.
  • the second phase consists of cutting the band of material into segments of a certain length depending on the properties of the material with which said segments are to be mixed.
  • the third phase consists of transportation to the mixing station and dispensing the product in the volume required.
  • a continuous band 1 unwound from a ball of raw material 2 enters a turret 3 by means of a foot with an input guide 4, said guide being provided with a plurality of rollers or pulleys, whose function is to neutralize the overpressures and distensions produced during the unwinding of the fibre, as well as a knot detector 13 which brings the entire process to a halt if any irregularity in the strand of material is located.
  • the second phase begins in which the band of material, now at a constant tension, enters a guide 5 which introduces the material into the cutting station which comprises a cylinder provided on its peripheral edge with a plurality of blades 6 and over which the band of material winds such that two effects are produced, the first of these being one of traction whilst the blades and fibres are in contact and as a result of which the entire strand of fibre advances and the ball of raw material is unwound, the second effect comprising the final cutting of the fibre into segments of a certain length. All of this is possible since the cutting action of the blades is progressive rather than an instantaneous sectioning.
  • the volume of fibre cut is determined by the speed with which the cutting cylinder rotates and the tension of the continuous strand of material, the weight of the strand being constant along its entire length, this length depending on the distance between the blades.
  • the last phase of the process is begun, wherein the fibre is conveyed to the construction sites own mixing station 7 by means of a tube 8 provided with flexible zones 9 for making bends and avoiding obstacles and through which the material runs, driven pneumatically by an impulsion gang 10.
  • the volume dispensed is determined by means of the cutting speed and the pneumatic pressure in the tube, said pressure always being in accordance with the volume of the product which is cut in the previous phase.
  • All of the mechanical elements are situated on a travelling platform 11 which is also provided with a control panel 12 for controlling the entire process.
  • Said panel may be provided on a transportable console in order that it may be transferred to a specific part of the site where the rest of the controls for other machines and processes are situated so that a single person can control them all simultaneously.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Road Paving Structures (AREA)
  • Moulding By Coating Moulds (AREA)
  • Reinforced Plastic Materials (AREA)
  • Road Repair (AREA)
EP93500117A 1993-07-31 1993-07-31 Verfahren zur kontrollierten Umwandlung und Verwendung von Fasern in situ in Tief- und Strassenbau Expired - Lifetime EP0636747B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP93500117A EP0636747B1 (de) 1993-07-31 1993-07-31 Verfahren zur kontrollierten Umwandlung und Verwendung von Fasern in situ in Tief- und Strassenbau
AT93500117T ATE163208T1 (de) 1993-07-31 1993-07-31 Verfahren zur kontrollierten umwandlung und verwendung von fasern in situ in tief- und strassenbau
DE69316979T DE69316979T2 (de) 1993-07-31 1993-07-31 Verfahren zur kontrollierten Umwandlung und Verwendung von Fasern in situ in Tief- und Strassenbau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93500117A EP0636747B1 (de) 1993-07-31 1993-07-31 Verfahren zur kontrollierten Umwandlung und Verwendung von Fasern in situ in Tief- und Strassenbau

Publications (2)

Publication Number Publication Date
EP0636747A1 true EP0636747A1 (de) 1995-02-01
EP0636747B1 EP0636747B1 (de) 1998-02-11

Family

ID=8214879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93500117A Expired - Lifetime EP0636747B1 (de) 1993-07-31 1993-07-31 Verfahren zur kontrollierten Umwandlung und Verwendung von Fasern in situ in Tief- und Strassenbau

Country Status (3)

Country Link
EP (1) EP0636747B1 (de)
AT (1) ATE163208T1 (de)
DE (1) DE69316979T2 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017548A1 (de) * 1979-03-23 1980-10-15 Etat Français Représenté par le Ministère de l'Environnement et du Cadre de Vie Laboratoire Central Des Ponts et Chaussées Konstruktionsmaterial, seine Verwendung zum Erhöhen, Überziehen oder für massive Fundamente auf lockerem Boden; Verfahren und Vorrichtung zur Herstellung dieses Materials
GB2175032A (en) * 1985-04-25 1986-11-19 Fibredec Ltd A method of resurfacing a road
FR2631356A1 (fr) * 1988-05-13 1989-11-17 Texsol Applocation Machine perfectionnee pour la formation de terrains renforces de fils textiles
EP0456502A2 (de) * 1990-05-10 1991-11-13 Colas S.A. Auftragvorrichtung für Oberflächenbehandlung
FR2661929A1 (fr) * 1990-05-14 1991-11-15 Screg Routes & Travaux Dispositif de fabrication d'une couche intermediaire dans une membrane routiere sur le sol.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017548A1 (de) * 1979-03-23 1980-10-15 Etat Français Représenté par le Ministère de l'Environnement et du Cadre de Vie Laboratoire Central Des Ponts et Chaussées Konstruktionsmaterial, seine Verwendung zum Erhöhen, Überziehen oder für massive Fundamente auf lockerem Boden; Verfahren und Vorrichtung zur Herstellung dieses Materials
GB2175032A (en) * 1985-04-25 1986-11-19 Fibredec Ltd A method of resurfacing a road
FR2631356A1 (fr) * 1988-05-13 1989-11-17 Texsol Applocation Machine perfectionnee pour la formation de terrains renforces de fils textiles
EP0456502A2 (de) * 1990-05-10 1991-11-13 Colas S.A. Auftragvorrichtung für Oberflächenbehandlung
FR2661929A1 (fr) * 1990-05-14 1991-11-15 Screg Routes & Travaux Dispositif de fabrication d'une couche intermediaire dans une membrane routiere sur le sol.

Also Published As

Publication number Publication date
EP0636747B1 (de) 1998-02-11
DE69316979D1 (de) 1998-03-19
DE69316979T2 (de) 1998-09-24
ATE163208T1 (de) 1998-02-15

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