EP4230802A1 - Élément de renfort de gabion - Google Patents

Élément de renfort de gabion Download PDF

Info

Publication number
EP4230802A1
EP4230802A1 EP23157316.3A EP23157316A EP4230802A1 EP 4230802 A1 EP4230802 A1 EP 4230802A1 EP 23157316 A EP23157316 A EP 23157316A EP 4230802 A1 EP4230802 A1 EP 4230802A1
Authority
EP
European Patent Office
Prior art keywords
metal mesh
mesh
reinforcement
web
reinforcement element
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.)
Pending
Application number
EP23157316.3A
Other languages
German (de)
English (en)
Inventor
Paolo Bianchini
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.)
Officine Maccaferri SpA
Original Assignee
Officine Maccaferri SpA
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 Officine Maccaferri SpA filed Critical Officine Maccaferri SpA
Publication of EP4230802A1 publication Critical patent/EP4230802A1/fr
Pending legal-status Critical Current

Links

Images

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
    • 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 the field of earth covering, containment and reinforcement structures, for example, for stabilizing escarpments, embankments and the like.
  • the invention has been developed with regard to a reinforcement element for constructing such structures and particularly, even if not exclusively, for constructing support walls.
  • the invention also relates to a method for constructing such a reinforcement element.
  • US 5161917 in the name of Officine Maccaferri S.p.A. describes a reinforcement element for constructing elevated structures from shored-up and reinforced earth and walls, which is known by the commercial name Terramesh ® .
  • This reinforcement element comprises a web made of double-torsion metal mesh with a box made of mesh at one end thereof.
  • the mesh box is formed at three sides by the folded web of mesh while a fourth side is formed by means of an additional transverse panel which is fixed to the web made of mesh.
  • the mesh box defines the front wall, the front facing, of the support wall.
  • This reinforcement element is particularly economical and easy to put into operation.
  • the front portion of the mesh box which defines the exposed facade of the support wall is subjected to the thrust of the filling material and the layers of earth which, with the passage of time, curve and deform it.
  • the deformation of the façade may indicate local deformations of the entire support structure which it is necessary to prevent with maintenance operations.
  • EP 1012406 also from Officine Maccaferri S.p.A.
  • This document describes a structure which is constituted by a web of metal mesh of the type with double torsion, which is folded so as to constitute a structure with a base wall, a front wall and an upper wall.
  • the front wall made of metal mesh is supported at the rear by an additional panel made of electro-welded metal mesh which is supported by metal brackets.
  • a layer of geosynthetic material on the front wall allows vegetation-supporting walls to be produced.
  • This reinforcement element allows the production of support walls with planar front walls which are maintained over time because the panel of electro-welded mesh which is positioned behind the web of double-torsion mesh contains the thrust of the filling material and the earth.
  • this reinforcement element is rather complex to construct and to put into operation because it is necessary to provide and correctly mount the support brackets of the front wall before carrying out the filling of the structure with the earth.
  • EP 1579081 also from Officine Maccaferri S.p.A.
  • This document describes a reinforcement element for constructing earth covering, containment and reinforcement structures comprising a web of metal mesh of the double-torsion type, to which a front panel of electro-welded metal mesh is connected in an articulated manner. An upper panel of double-torsion mesh is connected to the front panel.
  • This reinforcement element is complex to construct. Furthermore, the articulation between the web of mesh and the front panel does not allow the front panel to be positioned in the desired configuration of the wall, for example, in a vertical or inclined position, without providing a number of supports in the rear portion thereof.
  • An object of the present invention is to overcome the disadvantages of the prior art.
  • An object of the invention is therefore to provide a reinforcement element for constructing earth covering, containment and reinforcement structures, the front wall of which is not subjected to deformations as a result of the thrust applied by the earth or the filling material.
  • Another object of the invention is to provide a reinforcement element which is simple and economical to manufacture, to transport to the installation site and to install.
  • Another object of the invention is to provide a reinforcement element which can also be rapidly installed by non-expert operators.
  • Another object is to provide a reinforcement element which is reliable over time and which does not require particular maintenance.
  • the reinforcement element for constructing earth covering, containment and reinforcement structures, in particular for constructing support walls.
  • the reinforcement element may comprise a reinforcement strip or web which is formed by a mesh.
  • This reinforcement element is adjacent and secured to a containment structure for containing earth or facing material, such as stones, rocks and the like.
  • the containment structure comprises at least one front face which forms the facing of the support wall.
  • the front face may be vertical or inclined in such a manner that the superimposition of a plurality of reinforcement elements defines a support wall or a portion thereof which is vertical or inclined, respectively.
  • the front face of the containment structure may be made of double-torsion metal mesh. There can be fixed to the front face of the containment structure a front panel of electro-welded mesh.
  • the front panel of electro-welded mesh is fixed to the external side of the containment structure, that is to say, at the side of the exposed face of the facing, opposite the earth.
  • the close positioning between the double-torsion metal mesh and the electro-welded mesh which is preferably but not exclusively over the entire extent of the facing, stiffens the containment structure, preventing it from becoming deformed under the combined thrust of the earth, the stones or rocks at the rear, and the weight of the containment structures positioned thereabove.
  • Another advantage is that of providing smaller and more compact containment structures with respect to the prior art.
  • the electro-welded mesh is positioned at the external side of the containment structure, that is to say, at the side of the exposed face of the facing, there is a substantial advantage from the production point of view because it is quite convenient to couple the two meshes and to fold the reinforcement element in such a manner that it is easy to transport it and to unfold it at the installation site.
  • this does not exclude coupling two mesh panels at both sides of the front face in order to obtain a particularly rigid and resistant containment structure.
  • the reinforcement strip or web can be formed by a double-torsion metal mesh.
  • the front face of the containment structure can be constructed integrally with the same double-torsion metal mesh of the reinforcement strip.
  • the double-torsion metal mesh can be folded in the region of a common edge between the reinforcement strip and the front face of the containment structure. In this manner, the manufacture of the reinforcement element is further accelerated, ensuring the resistance and reliability thereof over time.
  • the containment structure can be an actual gabion made of double-torsion metal mesh.
  • a gabion may effectively contain stones and rocks which serve to form the containment wall structure.
  • the front face of the gabion which will form the exposed face is reinforced, as mentioned above, with the front panel of electro-welded mesh.
  • the gabion may comprise a lower face and an upper face which are formed, together with the front face, by the same web of metal mesh.
  • a method for manufacturing a reinforcement element which may comprise the step of providing a web of double-torsion metal mesh, for example, of the type with hexagonal mesh.
  • a panel of electro-welded metal mesh which preferably has a length equal to the width of the web of metal mesh. Therefore, it is possible to fix the panel of electro-welded metal mesh to the web of metal mesh in a position which corresponds to a front face of a containment structure which has a height equal to the height of the electro-welded mesh panel.
  • the front face of the containment structure can be formed by transversely folding the web of metal mesh in the region of at least one of the two edges of the panel of electro-welded metal mesh.
  • a support wall can be constructed by juxtaposing and superimposing reinforcement elements of the above-indicated type relative to each other.
  • the gabions which are filled, for example, with stones, serve to constitute the façade or facing of the support wall while the reinforcement strips extend in the rear embankment with respect to the gabions in order to form a reinforced earth section.
  • the reinforcement element comprises a gabion 12 of metal mesh of the double-torsion type with hexagonal mesh.
  • the gabion 12 comprises a lower face or wall 13, a front face or front wall 14, an upper face or wall 15, a rear face or wall 16 and two lateral faces or walls 17.
  • the lower wall 13, the front wall 13 and the upper wall 15 of the gabion 12 are preferably formed by a single web of metal mesh 19 which is folded transversely.
  • the rear wall 16 is constructed with a panel of metal mesh which is fixed to the web of metal mesh 19.
  • the rear wall 16 can be constructed by folding the web of metal mesh 19 in two.
  • the side walls are also formed by two panels of metal mesh which are fixed to the web of metal mesh 19.
  • the metal mesh of the gabion 12 and the reinforcement strip 18 is preferably of the double-torsion type with hexagonal mesh.
  • the metal mesh can be zinc-coated and/or plastic-coated.
  • a front panel 20 of electro-welded metal mesh for example, with square mesh, is fixed to the front wall 14 of the gabion 12, externally with respect to the gabion itself.
  • the front panel 20 is fixed to the front wall 14 of the gabion 12 by means of metal fastenings 21, for example, clips, also called “C-rings”, or functionally equivalent systems.
  • the gabion 12 is not limited to the parallelepipedal shape shown in Figure 1 , but may assume different formations in section.
  • the rear wall 16 is always vertical while the front wall 14 and the associated front panel 20 can be both vertical and inclined in order to construct support walls which are vertical or inclined, respectively.
  • the lower, front and upper walls of the gabion 12 are preferably constructed integrally with the same web of metal mesh as the one from which the reinforcement strip 18 is constructed, this does not exclude the possibility of constructing the various walls with panels of separate metal mesh and/or constructing the reinforcement strip 18 with a web of metal mesh which is separate from the one used for the gabion 12.
  • Figure 1 illustrates the preferred direction which the hexagonal mesh take up at the various walls of the gabion 12.
  • a plurality of reinforcement elements 10 are juxtaposed and superimposed in such a manner that the gabions 12 form the façade or facing of the support wall.
  • the reinforcement strips 18 are encased in the earth behind the support wall in order to form a reinforced earth embankment.
  • the reinforcement element 10 is manufactured in a production facility where it is folded in order to be transported to the installation location.
  • the mesh panels which form the rear wall 16 and the side walls 17.
  • These mesh panels are fixed with fastenings, for example, of the helical type, along the contact edges thereof with the web of metal mesh 19.
  • the front panel 20 of electro-welded mesh is further placed and fixed on the web of metal mesh 19.
  • the front panel 20 has a length equal to the width of the web of metal mesh 19.
  • the height of the front panel 20 defines the height of the gabion 12 which, during installation, is formed by folding the web of metal mesh 19 along the edges of the front panel 20.
  • the web of metal mesh 19 is then folded, for example, by setting down the portions of mesh web 19 corresponding to the front wall 14 and upper wall 15 on the reinforcement strip 18.
  • the side walls 17 can be folded inside.
  • the reinforcement element 10 can be folded so as to have from above dimensions which substantially correspond to the dimensions of the front panel 20 of electro-welded mesh.
  • the reinforcement element 10 can be folded so as to have from above dimensions which substantially correspond to those of the front panel 20 of electro-welded mesh adjacent to the upper wall 15 which serves to form the gabion 12.
  • the front strip 12 can be substantially vertical, as illustrated in Figure 1 , in order to construct a vertical support wall or it may be inclined in order to construct a generally inclined wall structure.
  • the rear wall 18 and the front wall 14 which is joined to the front panel 20 are raised and joined to the side walls 17 by known systems, for example, with fastenings or metal clips.
  • the upper wall 15 is left open in order to allow the gabion 12 to be filled with the filling material provided, for example, stone. When filling is finished, the upper wall 15 is closed in the manner of a cover by fixing the end edge thereof to the upper edge of the rear wall 18 by known systems, for example, with fastenings or metal clips.
  • the front panel 20 has a function which is both aesthetic and functional, providing greater rigidity of the façade.
  • the rigidity of the façade allows more rapid installation in addition to benefits in environmental terms as a result of the reduction of the filling stone.
  • the gabion can be replaced by an open containment structure which is, for example, L-shaped, that is to say, without the upper face and rear face with respect to what has been described above, or C-shaped, that is to say, without the single rear face with respect to what has been described above.
  • the front panel 20 can be fixed alternately to one or the other side of the front wall 14. It is also possible to provide two front panels 20 of electro-welded mesh which are fixed to both sides of the face or front wall 14.
  • the front panel(s) 20 do not necessarily have to involve the entire extent of the front wall 14 of the gabion or more generally the containment structure, but can have smaller dimensions, it being possible to involve only portions of the front wall 14 and therefore of the facing constructed with the reinforcement element.

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)
EP23157316.3A 2022-02-18 2023-02-17 Élément de renfort de gabion Pending EP4230802A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102022000003050A IT202200003050A1 (it) 2022-02-18 2022-02-18 Elemento di rinforzo per la realizzazione di strutture di rivestimento, contenimento ed armatura di terreni, in particolare per la realizzazione di muri di sostegno

Publications (1)

Publication Number Publication Date
EP4230802A1 true EP4230802A1 (fr) 2023-08-23

Family

ID=81392880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23157316.3A Pending EP4230802A1 (fr) 2022-02-18 2023-02-17 Élément de renfort de gabion

Country Status (2)

Country Link
EP (1) EP4230802A1 (fr)
IT (1) IT202200003050A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2073281A (en) * 1979-12-03 1981-10-14 Netlon Ltd Reinforced soil structure
US5161917A (en) 1990-01-19 1992-11-10 Officine Maccaferri S.P.A. Method of and an element for the production of structures for containing areas of ground
EP1012406A1 (fr) 1997-02-25 2000-06-28 OFFICINE MACCAFERRI S.p.A. Element pour former des revetements de sol, des structures de retenue et de renfort, en particulier, pour former des murs de soutenement
EP1308562B1 (fr) 2001-11-02 2005-09-07 OFFICINE MACCAFERRI S.p.A. Structure de conteneur en grillage ou treillis pour la protection contre l'érosion
EP1579081A1 (fr) 2002-09-19 2005-09-28 OFFICINE MACCAFERRI S.p.A. Element perfectionne permettant de former des structures servant a couvrir, a immobiliser et a renforcer le sol
EP1711661A1 (fr) * 2003-09-16 2006-10-18 OFFICINE MACCAFERRI S.p.A. Dispositif d'armature et unite d'armature bifaciale pour ouvrages en terre, et procede pour la realisation d'un ouvrage en terre armee
JP2016075095A (ja) 2014-10-07 2016-05-12 瀬戸内金網商工株式会社 蛇篭連設体
US20200248426A1 (en) * 2017-01-31 2020-08-06 Geoflum Engineering S.R.L. Retaining Wall with Reinforced Soil
CN212270826U (zh) 2019-12-31 2021-01-01 中国铁道科学研究院集团有限公司铁道建筑研究所 一种格宾网箱

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2073281A (en) * 1979-12-03 1981-10-14 Netlon Ltd Reinforced soil structure
US5161917A (en) 1990-01-19 1992-11-10 Officine Maccaferri S.P.A. Method of and an element for the production of structures for containing areas of ground
EP1012406A1 (fr) 1997-02-25 2000-06-28 OFFICINE MACCAFERRI S.p.A. Element pour former des revetements de sol, des structures de retenue et de renfort, en particulier, pour former des murs de soutenement
EP1308562B1 (fr) 2001-11-02 2005-09-07 OFFICINE MACCAFERRI S.p.A. Structure de conteneur en grillage ou treillis pour la protection contre l'érosion
EP1579081A1 (fr) 2002-09-19 2005-09-28 OFFICINE MACCAFERRI S.p.A. Element perfectionne permettant de former des structures servant a couvrir, a immobiliser et a renforcer le sol
EP1711661A1 (fr) * 2003-09-16 2006-10-18 OFFICINE MACCAFERRI S.p.A. Dispositif d'armature et unite d'armature bifaciale pour ouvrages en terre, et procede pour la realisation d'un ouvrage en terre armee
JP2016075095A (ja) 2014-10-07 2016-05-12 瀬戸内金網商工株式会社 蛇篭連設体
US20200248426A1 (en) * 2017-01-31 2020-08-06 Geoflum Engineering S.R.L. Retaining Wall with Reinforced Soil
CN212270826U (zh) 2019-12-31 2021-01-01 中国铁道科学研究院集团有限公司铁道建筑研究所 一种格宾网箱

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "RockBox Gabions and Mattresses", GEOSYNTHETICS, 14 November 2011 (2011-11-14), pages 1 - 13, XP093135696
ANONYMOUS: "TECHNICAL DATA SHEET Rev: 07d", MACCAFERRI, 26 April 2018 (2018-04-26), pages 1 - 2, XP093135691

Also Published As

Publication number Publication date
IT202200003050A1 (it) 2023-08-18

Similar Documents

Publication Publication Date Title
US5161917A (en) Method of and an element for the production of structures for containing areas of ground
EP1579081B1 (fr) Element perfectionne permettant de former des structures servant a couvrir, a immobiliser et a renforcer le sol
AU2003283655B2 (en) High-strength concrete wall formwork
JP5842006B2 (ja) 補強土構造物
SK114899A3 (en) AN ELEMENT FOR FORMING GROUND COVERING, RESTRAINING ANDì (54) REINFORCING STRUCTURES, PARTICULARLY FOR FORMING RETAINING WA
EP1711661B1 (fr) Unite d'armature bifaciale pour ouvrages en terre, et procede pour la realisation d'un ouvrage en terre armee
EP4230802A1 (fr) Élément de renfort de gabion
EP0796375B1 (fr) Procede et dispositif permettant le developpement d'une vegetation sur une surface en pente
JP3611967B2 (ja) 法面構造およびその構築方法
KR20220027373A (ko) 다층중공형 기둥부 합성형 프리캐스트 벽체 및 이를 이용한 외부벽체 시공방법
KR102307968B1 (ko) 기둥부 합성형 프리캐스트 벽체 및 이를 이용한 외부벽체 시공방법
JP2011069156A (ja) 法面保護構造と法面保護に用いる連結金具。
KR101619168B1 (ko) 표시판 교환형 게비온 구조물
KR20220027375A (ko) 적층형 기둥부 합성형 프리캐스트 벽체 및 이를 이용한 외부벽체 시공방법
JP2631056B2 (ja) コンクリート地中梁で補強された盛土構造
KR101222521B1 (ko) 보강토 강재 패널
JP2982059B2 (ja) オープンピット工法
JPH07292673A (ja) 補強土構造物
WO1997049873A1 (fr) Revetement de fond pour sites de decharge
JPH07216894A (ja) 補強土構造物

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

TPAC Observations filed by third parties

Free format text: ORIGINAL CODE: EPIDOSNTIPA

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OFFICINE MACCAFERRI S.P.A.