EP0808947A1 - Armierte Fahrbahnschicht, zellförmige Struktur und kunststoff Element für eine solche Fahrbahnschicht - Google Patents

Armierte Fahrbahnschicht, zellförmige Struktur und kunststoff Element für eine solche Fahrbahnschicht Download PDF

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Publication number
EP0808947A1
EP0808947A1 EP97401100A EP97401100A EP0808947A1 EP 0808947 A1 EP0808947 A1 EP 0808947A1 EP 97401100 A EP97401100 A EP 97401100A EP 97401100 A EP97401100 A EP 97401100A EP 0808947 A1 EP0808947 A1 EP 0808947A1
Authority
EP
European Patent Office
Prior art keywords
reinforced
layer according
road
elements
approximately
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.)
Withdrawn
Application number
EP97401100A
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English (en)
French (fr)
Inventor
Hervé Tessonneau
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.)
Colas SA
Original Assignee
SCREG 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 SCREG SA filed Critical SCREG SA
Publication of EP0808947A1 publication Critical patent/EP0808947A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0208—Gabions
    • 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
    • E01C11/00—Details of pavings
    • E01C11/16—Reinforcements
    • 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
    • E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated

Definitions

  • the present invention relates to a reinforced road layer of the type described in the preamble of claim 1. It is in particular intended for the production of heavily stressed sections of road, such as the toll areas of motorways.
  • the reinforced pavement layer according to the invention may include one or more of the characteristics described in claims 2 to 13.
  • the honeycomb structure 1 shown in Figure 1 is a honeycomb structure intended to reinforce a layer 2 of road material ( Figure 3), for example a wearing course consisting of a bituminous mix.
  • the structure 1 is itself made up of individual elements 3, all identical, made of injection-molded plastic, assembled together.
  • Each element 3 forms ( Figure 2) a regular hexagonal mesh 4, the side of which measures from 5 to 25 cm approximately and most often from 8 to 12 cm approximately.
  • the height h of the element is between 1 and 5 cm approximately, most often between 2 and 4 cm.
  • the plastic may be thermoplastic, in particular polypropylene, which is inexpensive, or else thermosetting. It may be a plastic recovery material, and / or a plastic material containing inexpensive modifiers such as talc.
  • the walls of the element 3 are generally vertical, with on each side a draft downwards or upwards to facilitate demolding.
  • the average thickness of these walls is between 3 and 8 mm approximately and most often between 4 and 6 mm approximately.
  • Tab 5 (the one on the left in Figure 2) has one side (the bottom one in Figure 2), near its end, a vertical connection plate 7 which is parallel to it and is offset from its plane.
  • One 8 of the sides of the mesh 4 parallel to the legs 5, 6 (the bottom side in FIG. 2) likewise carries, at mid-length, an identical connecting plate 7.
  • Each plate 7 has a trapezoidal shape, with converging edges down. At each end, the plate 7 forms a locking tab 9.
  • the other tab 6 and the side 10 of the mesh 4 opposite to the side 8 each have, respectively at its end and at mid-length, a recess 11, open upwards when considering FIG. 2, of shape substantially conjugate with that of the wafer 7. Near its upper edge, this recess has latching reliefs 11A overhanging.
  • the elements 3 are assembled by juxtaposing them, the plate 7 of a tab 5 being fully inserted into the recess 11 of the adjacent tab 6, until its tabs 9 snap under the reliefs 11A overhanging this recess. Similarly, the plate 7 on one side 8 is introduced until it clicks into the recess 11 on the adjacent side 10.
  • the pavement layer 2 reinforced by the structure 1 is laid on an underlying layer 12 ( Figure 3), then the meshes 4 and 4A are filled with the road material of layer 2, which can be of any type of conventional road material: bituminous mix, poured asphalt, material treated with hydraulic binder (concrete, gravel-slag, serious cement).
  • This operation can be preceded by sprinkling a thin layer of bonding binder on the reinforcement (bitumen in the case of a bituminous mix) and / or followed by compaction.
  • the road material can be flush with the upper surface of the reinforcement 1, or else, as shown in FIG. 3, have an extra thickness e , which is generally at most equal to approximately 2.5 cm.
  • the plastic material constituting the elements 3 has a very good affinity with the bonding binders of the road industry and therefore makes it possible to obtain an excellent bond with the road material of the layer 2 in question.
  • the elements 3 soften during spreading (the hot mixes are spread at around 150 ° C., that is to say say at a temperature close to the softening point of polypropylene), then regain their mechanical properties as they cool. An intimate marriage is thus obtained between the reinforcement and the material of layer 2.
  • Another advantage of the plastic / road materials combination is the proximity of the expansion coefficients. As a result, the reinforcement has practically no tendency to peel off from the road material over time.
  • the relatively large wall thickness that can be given to the elements 3 makes it possible to avoid, when the layer 2 is a wearing course, any vertical shearing effect (knife effect) during the passage of the rolling loads. .
  • the conditions of movement of personnel during the site are, for the same reason, facilitated.
  • the draft of the walls of the elements 3 is preferably converging downwards.
  • the reinforcement 1 can be implemented in any road layer, depending on the technical problem that one seeks to solve: resistance to rutting (wearing course), resistance to cracking (second layer from from the top). In the event of a roadway repair, the reinforcement can easily be implemented in the new wearing course, or at least in the most stressed areas thereof.
  • the structure 1 may consist of a network of elements obtained from extruded profiles based on plastic.
  • two adjacent sides of each mesh 4 can be constituted by two adjacent walls 13, 14, generally parallel, with a few spacers 15 between them molding between them.
  • the inter-wall space 16 ends, at each end, with the respective end edge of the sides 8 and 10, and opens at this location, at its base, by a notch 19 ( Figure 5).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Architecture (AREA)
  • Road Paving Structures (AREA)
EP97401100A 1996-05-20 1997-05-16 Armierte Fahrbahnschicht, zellförmige Struktur und kunststoff Element für eine solche Fahrbahnschicht Withdrawn EP0808947A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9606232 1996-05-20
FR9606232A FR2748760B1 (fr) 1996-05-20 1996-05-20 Couche de chaussee armee, structure alveolaire et element a base de matiere plastique pour une telle couche de chaussee

Publications (1)

Publication Number Publication Date
EP0808947A1 true EP0808947A1 (de) 1997-11-26

Family

ID=9492278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97401100A Withdrawn EP0808947A1 (de) 1996-05-20 1997-05-16 Armierte Fahrbahnschicht, zellförmige Struktur und kunststoff Element für eine solche Fahrbahnschicht

Country Status (2)

Country Link
EP (1) EP0808947A1 (de)
FR (1) FR2748760B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1015781C2 (nl) 2000-03-14 2001-09-21 Ooms Avenhorn Holding Bv Inrichting voor het fixeren van slangen, buizen of andere leidingen in een wegdek.
CN100577914C (zh) * 2006-01-16 2010-01-06 常州天马集团有限公司 经编高强合成纤维土工格栅
CN104141271A (zh) * 2014-07-22 2014-11-12 东北大学 治理沥青路面车辙病害的强化结构件及路面施工工艺
CN112673138A (zh) * 2018-07-27 2021-04-16 韦文有限公司 用于修筑道路的系统和方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001337182A (ja) 2000-05-26 2001-12-07 Matsushita Electric Ind Co Ltd 携帯端末装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2395352A1 (fr) * 1977-06-23 1979-01-19 Salada Erta Ramon Pavage en pates durcissables comportant des barrieres contre les fissures
FR2640297A1 (fr) * 1988-12-09 1990-06-15 Screg Routes & Travaux Procede de construction d'une chaussee armee utilisant une structure metallique
EP0400158A1 (de) * 1989-05-12 1990-12-05 Norbert Funke Vorrichtung zur Befestigung von Rasenwegen
US5123778A (en) * 1990-09-26 1992-06-23 Bohnhoff William W Method of paving
WO1993004856A1 (en) * 1991-09-09 1993-03-18 Bohnhoff William W Mat for stabilizing particulate materials
DE9421260U1 (de) * 1994-02-18 1995-07-27 Eberhard, Alf Hans, 78465 Konstanz Bauelement zum Herstellen von Flächen mit sechseckigem Grundriß gleicher Seitenlänge

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2395352A1 (fr) * 1977-06-23 1979-01-19 Salada Erta Ramon Pavage en pates durcissables comportant des barrieres contre les fissures
FR2640297A1 (fr) * 1988-12-09 1990-06-15 Screg Routes & Travaux Procede de construction d'une chaussee armee utilisant une structure metallique
EP0400158A1 (de) * 1989-05-12 1990-12-05 Norbert Funke Vorrichtung zur Befestigung von Rasenwegen
US5123778A (en) * 1990-09-26 1992-06-23 Bohnhoff William W Method of paving
WO1993004856A1 (en) * 1991-09-09 1993-03-18 Bohnhoff William W Mat for stabilizing particulate materials
DE9421260U1 (de) * 1994-02-18 1995-07-27 Eberhard, Alf Hans, 78465 Konstanz Bauelement zum Herstellen von Flächen mit sechseckigem Grundriß gleicher Seitenlänge

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1015781C2 (nl) 2000-03-14 2001-09-21 Ooms Avenhorn Holding Bv Inrichting voor het fixeren van slangen, buizen of andere leidingen in een wegdek.
CN100577914C (zh) * 2006-01-16 2010-01-06 常州天马集团有限公司 经编高强合成纤维土工格栅
CN104141271A (zh) * 2014-07-22 2014-11-12 东北大学 治理沥青路面车辙病害的强化结构件及路面施工工艺
CN104141271B (zh) * 2014-07-22 2016-04-13 东北大学 治理沥青路面车辙病害的强化结构件及路面施工工艺
CN112673138A (zh) * 2018-07-27 2021-04-16 韦文有限公司 用于修筑道路的系统和方法

Also Published As

Publication number Publication date
FR2748760A1 (fr) 1997-11-21
FR2748760B1 (fr) 1998-11-13

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