EP1402120A1 - Dispositif d'assemblage destine a une construction renforcee dans le sol - Google Patents

Dispositif d'assemblage destine a une construction renforcee dans le sol

Info

Publication number
EP1402120A1
EP1402120A1 EP01942952A EP01942952A EP1402120A1 EP 1402120 A1 EP1402120 A1 EP 1402120A1 EP 01942952 A EP01942952 A EP 01942952A EP 01942952 A EP01942952 A EP 01942952A EP 1402120 A1 EP1402120 A1 EP 1402120A1
Authority
EP
European Patent Office
Prior art keywords
assembly device
panel
anchoring end
stabilising element
elongated piece
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Withdrawn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
EP01942952A
Other languages
German (de)
English (en)
Inventor
Jean-Yves Mondon
Jean-Baptiste Domage
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.)
VSL International Ltd
Original Assignee
VSL International Ltd
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 VSL International Ltd filed Critical VSL International Ltd
Publication of EP1402120A1 publication Critical patent/EP1402120A1/fr
Withdrawn legal-status Critical Current

Links

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
    • E02D29/0233—Retaining or protecting walls comprising retention means in the backfill the retention means being anchors

Definitions

  • This invention relates to an assembly device intended for anchoring a stabilising element to a unit panel which is used in the construction of reinforced soil structures.
  • the technique of reinforce soil construction involves the embedding of stabilising elements into a mass of soil material to give the mass a required degree of stability in tension, in addition to the natural stability of compression of the mass.
  • the type of stabilising elements used and the number and disposition of the elements for a particular soil structure depend on the size of the structure and the characteristics of the soil.
  • a wide range of soil materials such as stones, gravels, sands, earth, ashes, slags, shales, etc. are known for possible use in reinforced soil structures.
  • the present invention relates to soil structures with a revetment made of a wall comprising a plurality of panel units with which stabilising elements are assembled.
  • the invention relates in particular to a device for anchoring each of the aforementioned panel units with a stabilising element which is made up of an elongated strip, for example a flexible polymeric strip.
  • the reference shows, namely, a device for assembling the aforementioned panel units and elements.
  • This assembly device comprises :
  • each stabilising element one anchoring end made in the shape of a hammerhead
  • a cavity comprising: • a first chamber, which opens into one of the two opposite faces of the unit panel, beyond which the stabilising element must extend, has a cross- section such as to allow the introduction of the anchoring end made in the shape of a hammerhead, and this in a direction perpendicular to the panel unit, • a second chamber, which is contiguous to the first chamber and has, in a transverse plane, a section complementary to that of the anchoring end, so as to retain this end, after translation in a direction parallel to the face of the panel unit in which the cavity opens up.
  • an object of the invention is to obtain an assembly device which overcomes this drawback.
  • the invention has as its subject matter an assembly device of the aforementioned type, in particular characterised in that :
  • the second chamber has sections complementary to that of the anchoring end, so as to retain this end after rotation around an orthogonal axis to the face of the panel unit in which the cavity opens up, in a manner of a bayonet assembly,
  • the first chamber has sections shaped so as to allow the rotation of the stabilising element in order to obtain the bayonet assembly.
  • Figure 1 is a transversal and vertical section of a reinforced soil structure
  • Figure 2 is a local view of the face of the panel unit represented in Figure 1 , which face is intended to receive the soil
  • Figure 3 is a transversal and vertical section of the detail "A" of Figure 1 ,
  • Figure 4 is a transversal and horizontal section of the part of the panel unit which is represented in Figure 2,
  • Figure 5 is a top view of the part of the anchoring end of a stabilising element represented in Figure 1
  • Figure 6 is a transversal section of an anchoring end of a stabilising element in a second embodiment
  • Figure 7 is a transversal section of an anchoring end of a stabilising element in a third embodiment
  • Figure 8 is a lateral view of an anchoring end of a stabilising element, in a fourth embodiment.
  • an assembly device 1 shaped for anchoring at least one stabilising element 5 to at least one of the unit panels 2 which are used in the soil retaining wall 3 construction.
  • Designated by soil retaining wall 3 is particularly, but not exclusively, a wall 3 which is built in order to protect and retain a mass of soil material 4, such as stones, gravels, sands, soils, ashes, etc., which are known for possible use in reinforced soil structures ( Figure 1).
  • soil material 4 such as stones, gravels, sands, soils, ashes, etc.
  • This assembly device 1 ( Figure 2) allows the connection between
  • this stabilising element 5 consisting of at least a piece of a strip 5 disposed between layers 6 of the mass of soil material 4 which are superposed against the panel unit 2, this assembly device comprising: - on the one hand, an anchoring end 7, made in the shape of a hammerhead, and which retains a stabilising element 5,
  • a first chamber 9 which opens up into one of the two opposite faces 10 of the panel unit 2 beyond which the stabilising element 5 must extend, has a cross-section such as to allow the introduction of the anchoring end 7 made in the shape of a hammerhead, and this in a direction D perpendicular to the panel unit
  • the second chamber 11 has sections complementary to that of the anchoring end 7, so as to retain this end after rotation around an axis 12 orthogonal to the face 10 of the panel unit 2 in which the cavity 8 opens up, in a manner of a bayonet assembly, - the first chamber 9, has sections shaped so as to allow the rotation of the stabilising element 5 in order to obtain the bayonet assembly .
  • the anchoring end 7 is made up of an elongated piece 13 which extends transversely with respect to the stabilising element 5, said elongated piece having a longitudinal dimension L1 greater than the transverse dimension L2 of this element 5 in such a way as to substantially extend beyond each side of the said element 5 by predetermined values L3 and L4.
  • predetermined values L3 and L4 are equal.
  • rotation about the orthogonal axis 12 ranges between 30 and 45°.
  • the elongated piece 13, making up the anchoring end 7, is fixed on the stabilising element 5.
  • the elongated piece 13 can be made out of a polymeric material, or steel or composite material, but one skilled in the art is able to choose an appropriate material with non-corrosive and/or inoxidizable features.
  • the elongated piece 13 is made up of at least two parts 131 , 132, 133 which are put together by means of connection elements 134 in such a way as to pinch the stabilising element 5 along its width and to retain said element 5 firmly.
  • the elongated piece 13, making up the anchoring end 7 is made up of a protuberance 13 of said element 5.
  • the elongated piece 13, making up the anchoring end 7 comprises a longitudinal aperture 135, allowing the passage of the stabilising element 5, and a lateral bearing surface 136 of support for a excrescence 137 formed on the stabilising element 5.
  • This technical feature makes it possible to use, if necessary, one stabilising element fixed on an elongated piece 13, this stabilising element having a limited length.
  • the elongated piece 13 has a circular transverse cross-section.
  • the elongated piece 13 making up the anchoring end 7 has, in another embodiment at least at the level of the ends 138 extending beyond each side of the stabilising element 5, a non- circular transverse cross-section. This technical feature allows different advantageous embodiments for the elongated piece 13.
  • the elongated piece 13 making up the anchoring end 7 has, at least locally, a transverse section limited to a portion of a circle and is borne by the stabilising element 5 in such a way as to have a reduced transverse dimension in the direction D of introduction into the cavity 8.
  • the elongated piece 13 making up the anchoring end 7 has, at least locally, an oval transverse section and is borne by the stabilising element 5 in such a way as to have a reduced transverse dimension in the direction D of introduction into the cavity 8.
  • the assembly device according to the invention ( Figures 3 and 4) comprises bearing surfaces 110 for, at least in an elastic manner, locking of the rotation of the anchoring end 7 about the axis 12 substantially orthogonal to the face 10 of the panel 2.
  • the bearing surfaces 110 for locking are formed by the faces 110 of cavities 111 made in the second chamber 1 1 for receiving the ends 138 of the elongated piece 13 under the effect of traction exerted upon the stabilising element 5 after the rotation of the said anchoring end 7 about an axis 12 substantially orthogonal to the face 10 of the panel 2 into which the cavity 8 opens up.
  • the assembly device comprises a wall 100 which makes up a casing 101 able to reserve the cavity 8 during casting of the panel 2 in a castable material 200.
  • the panel units 2 are made of concrete 200 and are reinforced with structural elements 201. It is also to be noted that, in the assembly device according to the invention, the casing 101 has surfaces 102 of support for, and connection to, structural surfaces 201 belonging to the panel 2 which it must equip.
  • the surfaces 102 of support for, and connection to, structural elements 201 of the panel 2 are disposed so as to allow assembly through simple elastic fitting on the structural elements 201 of the panel 2.
  • the assembly device of the invention is intended for use in a panel 2 which comprises at least two parallel structural elements 201 disposed with a predetermined spacing value "E".
  • the elongated piece 13 has a longitudinal dimension "L1 " greater than the predetermined spacing value "E" of the parallel structural elements 201.
  • the assembly device of the invention is also intended for use in a panel 2 which comprises at least two parallel structural elements 201 disposed with a predetermined spacing value "E" and :
  • the elongated piece 13 has a longitudinal dimension "L1 " greater than the predetermined spacing value "E" of the parallel structural elements 201 ,
  • the said assembly device comprises a wall 100 which makes up a casing 101 able to reserve the cavity 8 during casting of the panel 2 in a castable material 200,
  • the bearing surfaces 110 of the casing 101 are disposed in such a way that each can be placed behind one of the two structural elements 201 disposed with a predetermined spacing value "E".
  • the assembly device of the invention allows the elongated piece 13 to be indirectly supported or retained by the structural element of the panel unit.
  • the casing 101 can be made of a polymeric material, but one skilled in the art is able to choose an appropriate material with non- corrosive and/or inoxidizable features.

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)

Abstract

L'invention concerne un dispositif d'assemblage (1) servant d'accouplement entre une unité de panneau (2) utilisée dans la construction d'un mur de retenue (3) dans le sol, et au moins un élément de stabilisation (5) dudit panneau (2). Cet assemblage comprend une extrémité d'ancrage (7) sous forme d'une tête de marteau qui retient un élément de stabilisation (5), une cavité (8) pourvue d'une première chambre (9) qui s'ouvre sur une des deux surfaces opposées (10) de l'unité de panneau (2) et qui a une section transversale afin de permettre l'introduction de ladite extrémité d'ancrage (7), et une seconde chambre (11) contiguë à la première chambre (9). Cette seconde chambre (11) a des sections complémentaires à celles de l'extrémité d'ancrage (7), de manière à retenir cette extrémité après sa rotation autour d'un axe (12) orthogonal à la surface (10) de l'unité de panneau (2) comme dans un assemblage à baïonnette.
EP01942952A 2001-07-05 2001-07-05 Dispositif d'assemblage destine a une construction renforcee dans le sol Withdrawn EP1402120A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2001/000420 WO2003004781A1 (fr) 2001-07-05 2001-07-05 Dispositif d'assemblage destine a une construction renforcee dans le sol

Publications (1)

Publication Number Publication Date
EP1402120A1 true EP1402120A1 (fr) 2004-03-31

Family

ID=4358220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01942952A Withdrawn EP1402120A1 (fr) 2001-07-05 2001-07-05 Dispositif d'assemblage destine a une construction renforcee dans le sol

Country Status (2)

Country Link
EP (1) EP1402120A1 (fr)
WO (1) WO2003004781A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0515416D0 (en) 2005-07-27 2005-08-31 Linear Composites Ltd Ground reinforcement
FR2959761B1 (fr) * 2010-05-07 2013-06-28 Terre Armee Int Etancheite continue pour ouvrage de genie civil
IN2014MN02149A (fr) * 2012-05-22 2015-08-21 Vsl Int Ag
KR101528238B1 (ko) * 2014-12-11 2015-06-11 주식회사 한포스 보강토 옹벽용 띠형 섬유보강재의 시공방법

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU182851B (en) * 1978-06-16 1984-03-28 Betonutepitoe Vallalat Prop member for sustaining walls of reinforced soil type closing built earthworks
GB9720632D0 (en) * 1997-09-29 1997-11-26 Price Douglas P Soil reinforcement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03004781A1 *

Also Published As

Publication number Publication date
WO2003004781A1 (fr) 2003-01-16

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