EP0681065A1 - Structure de support pour sol accidenté - Google Patents

Structure de support pour sol accidenté Download PDF

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Publication number
EP0681065A1
EP0681065A1 EP95500052A EP95500052A EP0681065A1 EP 0681065 A1 EP0681065 A1 EP 0681065A1 EP 95500052 A EP95500052 A EP 95500052A EP 95500052 A EP95500052 A EP 95500052A EP 0681065 A1 EP0681065 A1 EP 0681065A1
Authority
EP
European Patent Office
Prior art keywords
modular
reinforcements
net
support structure
ground
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Withdrawn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
EP95500052A
Other languages
German (de)
English (en)
Inventor
Juan Carlos Librero Sanchez
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.)
PECUNE SA
Original Assignee
PECUNE 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 PECUNE SA filed Critical PECUNE SA
Publication of EP0681065A1 publication Critical patent/EP0681065A1/fr
Withdrawn legal-status Critical Current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
    • E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
    • E02D29/0241—Retaining or protecting walls comprising retention means in the backfill the retention means being reinforced earth elements

Definitions

  • the present invention relates to a structure specifically designed to support uneven ground created by the characteristics of a given work or by the lateral offsetting of a natural or already existing unevenness.
  • the purpose of the invention is to provide a simple, cost effective, inexpensive transport and installation cost structure which is furthermore fully effective and which may be adapted to various ground slopes or gradients.
  • a known technique involves providing a modular support grating fixed to the ground, said grating being a means of support for a cover padding acting both as a lateral earth containment means and as a physical support for seeds which might otherwise be washed away and which in time, after taking root, may form a vegetation mass providing a convenient lateral support means for the ground, while a reinforcement extending over the horizontal branch of the grating provides the actual means of support for the ground, regardless of the grating, which will in due course be destroyed by rusting.
  • the Spanish invention patent ES 2023738 may be cited, among others, in regard to a sloping ground support reinforcement composed of several grate framing modules, each of which forms an acute dihedral angle, preferably a 60° angle, corresponding to the inclination specified for the sloping surface, in such a manner that lengthwise alignments are formed by said modules, each approximately 50 cm high, which, after being covered by the padding or appropriate material, receives a first layer of earth which is compacted for arranging thereon a new module alignment, the oblique or inclined face of which is on the same plane as that of the lower modules, whereby an appropriate surface continuity is established.
  • the dihedral module configuration determines a volume which results in an increase of transport costs, while the lower branch - inactive as far a containment is concerned, conducted exclusively by the reinforcement padding - substantially increases the weight and generates a negative cost impact, while on the other hand the dihedral configuration produces a given inclination to the gradient which on occasion may not be the ideal one.
  • the uneven ground support structure proposed by the invention is designed and structured to solve the above problems in a fully satisfactory manner.
  • the structure's metal reinforcement modules are perfectly flat and affect the ground area corresponding exclusively to the slope, their dimensions and weight being minimal and their cost being consequently reduced as far as possible, while their flat condition allows them to be arranged in whatever inclination is imposed by the ground, whether it be the normal 60° inclination or any other inclination.
  • the reinforcement metal rods are arranged in a manner that provides a tongue and groove joint between the modules, in a perfectly co-planar disposition.
  • the above metal reinforcement modules are complemented with a plastic net designed to be attached horizontally to the module upper and lower margin areas, said plastic net being immersed in the ground and acting as a means of support for the metal reinforcements, and as a means of preventing the lateral offsetting of said reinforcements as a result of ground pressure, serving as a final stratified means of ground containment.
  • This plastic net is provided with slit-shaped holes of a decreasing width toward the ends thereof, in a manner that the metal reinforcement rods fit easily through the middle section of the holes but become tightly blocked at the end area when the net is offset laterally in respect to the metal reinforcement, thus achieving a full coupling condition.
  • a metal net has been considered, in which case the holes are of a quadrangular or rhomboidal shape, or any other suitable configuration; the net may even be of a mixed nature, combining metal and plastic components.
  • the lateral metal reinforcement modules may be braced to the horizontal nets by the conventional procedure of using oblique struts, after which the structure is covered with a standard fibrous seed containing and/or supporting mass, of the type conventionally available in the market.
  • Figure 1 is a perspective view of a metal module or reinforcement framework which is part of the uneven ground support structure of the present invention.
  • Figure 2 is also a perspective view of two reinforcement modules similar to the module in Figure 1, conveniently coupled by superimposing them.
  • Figure 3 is a partially exploded perspective view of the two reinforcement modules represented in the preceding figure, one of which is shown associated to the complementary net according to a practical embodiment, in which said net is made of plastic.
  • Figure 4 shows a profile view of the assembly represented in the preceding figure.
  • the proposed uneven ground support structure is obtained on the basis of using a plurality of modules (1), each of which is composed of a metal reinforcement composed of horizontal crosspieces (2) and vertical uprights (3) and providing the special feature that the marginal areas of the module, which can be either its vertical marginal areas, as shown in Figure 1, or its horizontal marginal areas, as shown in Figures 2, 3 and 4, the rods, bars or plates which make up the reinforcement framework are double in number, in a way that lodgings (4) are defined between them for the purpose of coupling the ends (5) of the rods or adjacent module elements, thus allowing for tongue and groove coupling between the modules to provide a perfect fit, very readily applied, and allowing adjacent modules to adopt a perfectly planar disposition or to form any kind of elbowed shape by the simple procedure of elbowing the rod ends (5) in a magnitude appropriate to specific requirements in each case.
  • modules (1) each of which is composed of a metal reinforcement composed of horizontal crosspieces (2) and vertical uprights (3) and providing the special feature that the marginal areas of the module, which can be either its vertical marginal areas, as
  • these modules (1) made of metal reinforcement frameworks are complemented with a net (6) which in the practical embodiment shown in the figures is made of plastic, although in specific circumstances it can be made of a different material, as for example of a metal or mixed nature, said net (6) being designed to adopt a horizontal disposition at various ground levels, specifically at the joint level between modules (1).
  • Said net (6) if made of plastic, has slits or slit-shaped holes (7) which allow the ends of the rods or bars (5) which make up the metal reinforcement of the modules (1) to pass through, said slit-shaped holes (7) clearly having a narrower configuration at the ends thereof (7') in order to ensure a perfect locking of the rods or bars (5), as shown particularly in Figure 3.
  • said holes may be of a quadrangular or rhomboidal shape, or any other shape.
  • Said nets (6) having adequate width dimensions, are immersed in the ground between the various earth layers, thus providing the actual earth retaining means for the slope; they are complemented by the typical interior wall lining of the reinforcement framework (1), based on the equally typical vegetation padding, whose initial self retaining capacity is in time enhanced by the vegetation taking root, providing the surface retaining means for the earth in the slope.
  • the proposed structure allows for easy construction, adjusting the inclination of the modular reinforcement (1) to the specific requirements in each case and maintaining said inclination with the aid of typical braces or struts installed, in the present case, between the crosspieces (2) of the modular reinforcements (1) and an ideal place in the net (6) according to the inclination of the reinforcements (1), thereby providing either a slope with a straight line profile by simple tongue and groove coupling between modular reinforcements (1), or else a broken profile by previously elbowing the ends (5) of the rods in the reinforcement framework, in a magnitude in accordance with specific requirements as the case dictates, simultaneously fixing the corresponding net (6) between every two superposed reinforcements, designed to strengthen both the compacted ground and its front reinforcements (1) at the appropriate level.
  • the flat condition of the modular reinforcements (1) makes them lighter and thus easier to handle, with no auxiliary material being required for assembling the modules as a result of their tongue and groove coupling design.
  • This flat configuration of the reinforcements (1) enables easier storage and transport conditions and poses no difficulty whatsoever in the course of subsequent earth filling and compacting operations.
  • Slopes of any inclination may be constructed, even up to the vertical, totally or partially stepped and with gradients that may be varied at will for adapting them to any ground profile foreseen.
  • a traction net is laid over previously conditioned ground (the length of the net being calculated by a known conventional method), located perpendicular to the front of the future structure.
  • a grating module is inserted through the characterizing holes at the front of the net, its lower rods planted in the ground up to the point where the horizontal rods come in contact with the net.
  • the module is firmly fixed in the ground (with the chosen inclination, e.g. 60°), placing it in intimate contact with the net. Subsequently, the vegetation padding is installed and the grating is propped up to the horizontal net with the help of simple hooks.
  • the Earth is then poured until the space behind the structure is completely filled, at which point the horizontal net should normally be covered.
  • the earth is then compacted, providing a flat platform at a height of, for example, 0,5 meters above the original ground level; the above operations are thereafter repeated until the desired level is obtained, with the sole exception that the modules are now inserted one inside the other, as required, to provide a final flat surface.
  • the surface is prepared to permanently accommodate vegetation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP95500052A 1994-05-06 1995-04-19 Structure de support pour sol accidenté Withdrawn EP0681065A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9400960A ES2113246B1 (es) 1994-05-06 1994-05-06 Estructura de sostenimiento para terrenos en desnivel.
ES9400960 1994-05-06

Publications (1)

Publication Number Publication Date
EP0681065A1 true EP0681065A1 (fr) 1995-11-08

Family

ID=8286128

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95500052A Withdrawn EP0681065A1 (fr) 1994-05-06 1995-04-19 Structure de support pour sol accidenté

Country Status (2)

Country Link
EP (1) EP0681065A1 (fr)
ES (2) ES2113246B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292763B (en) * 1994-08-30 1998-07-22 Samuel A Appleton Slope reinforcing structure and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546558A1 (fr) * 1983-05-25 1984-11-30 Atlas Ind Ltd Dispositif et procede pour relier des claies de retenue et de consolidation
FR2590291A1 (fr) * 1985-11-21 1987-05-22 Guintoli Freres Moyens de stabilisation des talus en remblai a forte inclinaison
US4856939A (en) * 1988-12-28 1989-08-15 Hilfiker William K Method and apparatus for constructing geogrid earthen retaining walls
EP0574233A1 (fr) * 1992-06-10 1993-12-15 GEA SYSTEM S.r.l. Méthode de fabrication d'un revêtement végétal dans sol renforcé et produit obtenu par ce procédé
WO1995000712A1 (fr) * 1993-06-24 1995-01-05 Societe Civile Des Brevets Henri Vidal Structures en terre
WO1995006784A1 (fr) * 1993-08-30 1995-03-09 The Reinforced Earth Company Terrassement a façade en treillis metallique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117686A (en) * 1976-09-17 1978-10-03 Hilfiker Pipe Co. Fabric structures for earth retaining walls
GB8727420D0 (en) * 1987-11-23 1987-12-23 Vidal H Earth structures
ES2023738A6 (es) * 1990-02-02 1992-02-01 Landolt Fritz Ag Armadura de soporte para un talud inclinado.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546558A1 (fr) * 1983-05-25 1984-11-30 Atlas Ind Ltd Dispositif et procede pour relier des claies de retenue et de consolidation
FR2590291A1 (fr) * 1985-11-21 1987-05-22 Guintoli Freres Moyens de stabilisation des talus en remblai a forte inclinaison
US4856939A (en) * 1988-12-28 1989-08-15 Hilfiker William K Method and apparatus for constructing geogrid earthen retaining walls
EP0574233A1 (fr) * 1992-06-10 1993-12-15 GEA SYSTEM S.r.l. Méthode de fabrication d'un revêtement végétal dans sol renforcé et produit obtenu par ce procédé
WO1995000712A1 (fr) * 1993-06-24 1995-01-05 Societe Civile Des Brevets Henri Vidal Structures en terre
WO1995006784A1 (fr) * 1993-08-30 1995-03-09 The Reinforced Earth Company Terrassement a façade en treillis metallique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292763B (en) * 1994-08-30 1998-07-22 Samuel A Appleton Slope reinforcing structure and method

Also Published As

Publication number Publication date
ES2122875A1 (es) 1998-12-16
ES2113246B1 (es) 1999-01-01
ES2113246A1 (es) 1998-04-16
ES2122875B1 (es) 1999-08-16

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