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EP0002216B1 - Armature pour ouvrages en terre armée - Google Patents

Armature pour ouvrages en terre armée Download PDF

Info

Publication number
EP0002216B1
EP0002216B1 EP78101398A EP78101398A EP0002216B1 EP 0002216 B1 EP0002216 B1 EP 0002216B1 EP 78101398 A EP78101398 A EP 78101398A EP 78101398 A EP78101398 A EP 78101398A EP 0002216 B1 EP0002216 B1 EP 0002216B1
Authority
EP
European Patent Office
Prior art keywords
reinforcement
tapes
outer skin
fabric
weaves
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.)
Expired
Application number
EP78101398A
Other languages
German (de)
English (en)
Other versions
EP0002216A1 (fr
Inventor
Rolf-Joachim Dr. Förster
Lothar Dr. Preis
Rudolf Dipl.-Ing. Schmidt
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.)
STRABAG BAU - AG
Bayer AG
Original Assignee
STRABAG BAU - AG
Bayer AG
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 STRABAG BAU - AG, Bayer AG filed Critical STRABAG BAU - AG
Publication of EP0002216A1 publication Critical patent/EP0002216A1/fr
Application granted granted Critical
Publication of EP0002216B1 publication Critical patent/EP0002216B1/fr
Expired 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
    • 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

Definitions

  • the term "reinforced earth” has become established.
  • the so-called filling floor becomes a load-bearing component of the building.
  • an outer skin is necessary, which can consist of metallic half-shells or plate-shaped prefabricated concrete parts, the fastening of which is described, for example, in French Pat. No. 2,221,588.
  • the metal reinforcement tapes used must have a zinc coating between 26 and 56 ⁇ , whereby the imperfect cathodic edge protection for the tapes cut from galvanized sheet steel is particularly unfavorable.
  • a corrosion surcharge of up to 50% of the nominal thickness required for load transfer must be made.
  • Another disadvantage is that despite these measures, additional requirements must be placed on the pH value and the electrical resistance of the filling floor in order to avoid critical conditions of use for the metallic reinforcement.
  • the invention has for its object to avoid the disadvantages and weak points mentioned above in the system "reinforced earth", in particular corrosion damage and to improve the friction in the earth structure. Other tasks include improving manageability and simple, secure connections between the reinforcement elements and the outer skin.
  • the object is achieved in that the braided or woven tapes used are impregnated with a resin which cures only through the moisture in the filling floor.
  • Another advantage that enables the high tensile strength of the reinforcement tapes to generate even higher frictional forces than with smooth or wide tapes is the friction-increasing effect of the structure of the fabric or braided tapes, which can preferably be wide-meshed and through weave (e.g. Atlas , Twill or linen weave) can be influenced.
  • weave e.g. Atlas , Twill or linen weave
  • the tapes according to the invention are limp, there is an extremely good adaptability to the unevenness of the filling floor when laying on the construction site, and a low risk of injury when filling the individual floor layers.
  • the tapes can be coiled in great lengths, and in contrast to conventional technology, the reinforcement elements are only cut to size on the construction site, which makes transportation and laying much cheaper.
  • the warp-reinforced fabric preferably consists of high-strength inorganic fibers, for example of glass fibers or of carbon fibers or of fiber mixtures of the fibers mentioned, which are impregnated with liquid reactive resins.
  • These fabric tapes preferably have basis weights between 400 and 800 g / m 2 .
  • Suitable reaction resins are, for example, epoxy, polyurethane or isocyanate resins.
  • the pre-impregnation of the fabric belts can be in impregnation baths between rollers, which can be attached directly in front of the take-off device by a suitable reel, respectively.
  • the dosage of the reaction resin is not critical; the fabric tape only has to be completely wetted.
  • the breaking load of the fabric tapes does not depend on the resin content of the impregnation. It may also be advantageous to lay the load-bearing fabric tapes dry and to spray or spray the liquid reaction resin onto the fabric tapes before filling them with the friction floor.
  • the pre-impregnated tapes which only need to be laid out on the construction site, are hardened after laying out by the moisture in the filling floor.
  • the curing time can be set within wide limits; Advantageous settings allow for laying time between 15 minutes and 2 hours.
  • the installed belt adapts well to uneven floors due to its flexibility; the friction bond between the belt and the soil is further improved by the reaction resin as a result of the earth particles adhering to the fabric belt, thus achieving a strong load-bearing capacity for the soil surrounding the belt.
  • the reaction resin After the reaction resin has hardened, the tape is dimensionally stable and has a considerable pull-out resistance.
  • suitable reactive resins leads to outstanding corrosion resistance; the already good per se resistance of the glass l and carbon fibers is increased even further by coating with reactive resins.
  • the moisture in the filling floor can be used to harden these resins.
  • the fabric tapes are perfectly hardened even in unfavorable weather conditions during installation.
  • the amount of resin used for impregnation is not critical, since the reinforcement fabric reaches its calculated breaking load regardless of the amount of resin impregnated.
  • the flexible bands can be laid in a hairpin-shaped manner, for example in the earthworks, the open ends of the band being directed into the earthworks and the loop being carried by a bracket which is attached to the outer skin of the structure and thus the non-positive connection between the outer skin and the reinforcement band manufactures.
  • Another possibility for the non-positive connection of the fabric straps to the outer skin of the building is to place the straps in a loop around the strap on the outer skin and to secure the loop with a suitable closure, e.g. secure one or more clamps by friction.
  • connection in such a way that one or more overlapping loops are formed over the bracket for the introduction of force in the outer skin of the earth structure, which form the load-bearing connection through the hardening of the reaction resin.
  • Figure 1 shows warp-reinforced fabric tape in linen weave. It consists of 5 glass rovings as warp threads 1 and glass spun threads of the weft thread 2 with a load capacity of approximately 12 kN and a width of approximately 60 mm. Similar glass fabric tapes are commercially available, for example, as types RLS 304016 or RLS 4022 from A. Weng, Holzhausen or under the designation 94025 from Intergfas Textil GmbH, with which breaking loads between 6 and 15 kN can be achieved.
  • FIG. 2 shows a laboratory product made from a ribbon braid.
  • the warp tape 3 is highly stretched polyethylene, the thickness is 100 11 , the width is about 5 mm.
  • the weft tape 4 is made of polyethylene, has a width of 0.2 mm and is 50 u thick.
  • the width of the finished braid of 5 tapes is 50 mm, the thickness about 0.8 mm.
  • the breaking load of this band is 9.7 kN.
  • the pre-impregnated band 10 consists of stretched organic fibers. It is laid out on the filling base 11, placed in a loop 12 around the plastic-coated support tube 13 and anchored non-positively by stretched combs 14.
  • a pre-impregnated fabric tape 15 made of glass silk is placed around the plastic-coated steel tube 17, which is encased in concrete in the outer skin 16; when pulling off a reel, the belt 15 is passed through an impregnation bath with a moisture-curing isocyanate resin with an NCO content of approx. 16% and a viscosity of approx. 5000 mPas and, after impregnation, is laid directly on the filling floor 18 in the manner shown, a provisional securing of the overlap of the strip end is carried out by U-shaped clamps made of ABS. Under normal conditions, the reaction resin is solid after 50 minutes and the connection to the outer skin of the earth structure is fully resilient.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Reinforced Plastic Materials (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Revetment (AREA)
  • Bridges Or Land Bridges (AREA)
  • Woven Fabrics (AREA)

Claims (3)

1. Armature d'ouvrages armés en sol par liaison mécanique de bandes de treillis ou de tissu à grande résistance mécanique et résistant à la corrosion qui sont posées dans le sol avec l'enveloppe de l'ouvrage, caractérisée en ce que les bandes de treillis ou de tissu sont imprégnées de résine qui ne durcit qu'au moment auquel elle est exposée à l'humidité du sol de remblai.
2. Armature d'ouvrages armés en sol selon la revendication 1, caractérisée en ce que les résines réactionnelles des bandes de treillis ou de tissu sont des résines époxyde, de polyuréthannes ou d'isocyanates.
3. Armature d'ouvrages armés en sol selon les revendications 1 et 2, caractérisée en ce que les bandes de treillis ou de tissu sont reliées mécaniquement à l'enveloppe en étant repliées autour d'étriers fixés dans cette dernière, la liaison mécanique obtenue par durcissement de la résine des parties de la boucle qui se recouvrent empêchant le boucle de s'arracher de l'étrier.
EP78101398A 1977-11-29 1978-11-18 Armature pour ouvrages en terre armée Expired EP0002216B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772753243 DE2753243A1 (de) 1977-11-29 1977-11-29 Bewehrung von armierten erdbauwerken
DE2753243 1977-11-29

Publications (2)

Publication Number Publication Date
EP0002216A1 EP0002216A1 (fr) 1979-06-13
EP0002216B1 true EP0002216B1 (fr) 1980-12-10

Family

ID=6024900

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78101398A Expired EP0002216B1 (fr) 1977-11-29 1978-11-18 Armature pour ouvrages en terre armée

Country Status (6)

Country Link
US (1) US4273476A (fr)
EP (1) EP0002216B1 (fr)
JP (1) JPS54107105A (fr)
AT (1) AT362307B (fr)
DE (2) DE2753243A1 (fr)
IT (1) IT1100763B (fr)

Families Citing this family (58)

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US4324508A (en) * 1980-01-09 1982-04-13 Hilfiker Pipe Co. Retaining and reinforcement system method and apparatus for earthen formations
FR2537180B1 (fr) * 1982-12-06 1987-01-30 Vidal Henri Culee de pont construite en terre stabilisee
EP0130949A3 (fr) * 1983-06-28 1985-11-27 Luciano Sangiorgio Panneaux en béton et moyens relatifs à leur ancrage dans la terre pour former un mur de parement à tracé, en plan variable, et pour permettre le placement des panneaux dans le plan du mur de parement et mur de parement ainsi obtenu
SE439793B (sv) * 1983-10-21 1985-07-01 Bjorn Magnus Ringesten Med Fir Forfarande att genom kompensationsgrundleggning astadkomma grundleggning och/eller grundforsterkning
DE3344974A1 (de) * 1983-12-13 1985-06-20 Kronimus & Sohn Betonsteinwerk und Baugeschäft GmbH & Co KG, 7551 Iffezheim Boeschungsstein sowie verfahren zum aufbau einer damit erstellten hangbefestigung
US4616959A (en) * 1985-03-25 1986-10-14 Hilfiker Pipe Co. Seawall using earth reinforcing mats
DE3516969C2 (de) * 1985-05-10 1995-05-24 Hans Reinschuetz Bepflanzbares Stützbauwerk
US4627133A (en) * 1985-08-08 1986-12-09 Owens-Corning Fiberglas Corporation Pultruded underground tank hold-down strap assembly
EP0227207B1 (fr) * 1985-12-26 1992-12-23 SHIMIZU CONSTRUCTION Co. LTD. Unité d'armature à béton
CA1243497A (fr) * 1986-01-15 1988-10-25 Hugh G. Wilson Mur de soutenement
GB2199063B (en) * 1986-12-18 1990-09-26 Mccauley Corp Ltd Retaining wall system
US4992003A (en) * 1989-01-16 1991-02-12 Yehuda Welded Mesh Ltd. Unit comprising mesh combined with geotextile
DE3913335A1 (de) * 1989-04-22 1990-10-25 Rolf Hoelzer Mauer
CA2017578C (fr) * 1990-05-25 1997-12-23 Angelo Risi Structures de renforcement des remblais
DE4131423A1 (de) * 1991-09-20 1993-03-25 Sf Vollverbundstein Bausatz aus beton-formsteinen sowie eine hieraus erstellte schwergewichts-stuetzmauer
US5588783A (en) * 1992-05-08 1996-12-31 The United States Of America As Represented By The Secretary Of The Army Soil reinforcement with adhesive-coated fibers
NZ257237A (en) 1992-10-06 1997-05-26 Anchor Wall Syst Masonry block enabling construction of curved or serpentine walls and a retaining wall made from the blocks and mould assembly for making such blocks
GB9226143D0 (en) * 1992-12-15 1993-02-10 Martin Christopher Method of connecting geogrids to retaining walls or boundary structures
US5807030A (en) * 1993-03-31 1998-09-15 The Reinforced Earth Company Stabilizing elements for mechanically stabilized earthen structure
US5507599A (en) * 1993-03-31 1996-04-16 Societe Civile Des Brevets Henri C. Vidal Modular block retaining wall construction and components
EP0707117B1 (fr) * 1993-03-31 2002-07-10 Société Civile des Brevets Henri Vidal Construction de murs soutènement en blocs modulaires
GB9313095D0 (en) * 1993-06-24 1993-08-11 Vidal Henri Brevets Earth structures
US5522682A (en) * 1994-03-02 1996-06-04 The Tensar Corporation Modular wall block system and grid connection device for use therewith
US5540525A (en) * 1994-06-06 1996-07-30 The Tensar Corporation Modular block retaining wall system and method of constructing same
US5595460A (en) * 1994-06-06 1997-01-21 The Tensar Corporation Modular block retaining wall system and method of constructing same
GB9417507D0 (en) * 1994-08-31 1994-10-19 E C Civil Eng Ltd Reinforcement device
US5839855A (en) * 1995-08-18 1998-11-24 Societe Civile Des Brevets Henri C. Vidal Facing element for a stabilized earth structure
DE29605181U1 (de) * 1996-03-20 1996-08-29 Wilhelm Siemsen GmbH u. Co KG., 24340 Eckernförde Rückverankerte Winkelstützwand
GB9607782D0 (en) * 1996-04-15 1996-06-19 Vidal Henri Brevets Earth structures
US5816749A (en) * 1996-09-19 1998-10-06 The Tensar Corporation Modular block retaining wall system
DE19731946A1 (de) * 1997-07-24 1999-01-28 Roblon As Befestigungseinrichtung für Rohre und andere Gegenstände sowie Verfahren zu deren Herstellung
US6368024B2 (en) 1998-09-29 2002-04-09 Certainteed Corporation Geotextile fabric
TW457317B (en) * 1998-11-06 2001-10-01 Bridgestone Corp Resin net and its production method, and drawn product of polyethylene based resin
US6315499B1 (en) 1999-04-01 2001-11-13 Saint Cobain Technical Fabrics Canada, Ltd. Geotextile fabric
EP1250222A4 (fr) * 2000-01-05 2003-04-16 Saint Gobain Technical Fabrics Panneaux lisses renforces a base de ciment et leurs procedes de fabrication
FR2803610B1 (fr) * 2000-01-07 2002-09-27 Freyssinet Int Stup Systeme d'attache d'une bande d'armature a une paroi d'un ouvrage de soutenement et dispositif de pose dudit systeme
FR2816648B1 (fr) 2000-11-15 2003-08-08 Gtm Construction Armature pour ouvrage en terre renforcee
FR2816647B1 (fr) 2000-11-15 2003-01-17 Gtm Construction Parement pour ouvrage en terre renforcee
US7096635B2 (en) 2001-03-02 2006-08-29 Rockwood Retaining Walls, Inc. Multiuse block and retaining wall
US6692195B2 (en) * 2001-10-25 2004-02-17 Jan Erik Jansson Plantable noise abatement wall
US7049251B2 (en) * 2003-01-21 2006-05-23 Saint-Gobain Technical Fabrics Canada Ltd Facing material with controlled porosity for construction boards
KR100660356B1 (ko) * 2004-10-19 2006-12-21 이정수 조립식 보강토 옹벽 지지용 띠형 섬유보강재의 시공방법및 이 시공방법에 사용되는 띠형 섬유보강재
FR2878268B1 (fr) * 2004-11-25 2007-02-09 Freyssinet Internat Stup Soc P Ouvrage en sol renforce et elements de parement pour sa construction
US7351015B2 (en) 2005-10-11 2008-04-01 Mortarless Technologies, Llc Invertible retaining wall block
USD548365S1 (en) 2005-10-11 2007-08-07 Mortarless Technologies, Llc Portion of a retaining wall block
USD546972S1 (en) 2005-10-11 2007-07-17 Mortarless Technologies, Llc Portion of a retaining wall block
USD547881S1 (en) 2005-10-11 2007-07-31 Mortarless Technologies, Llc Portion of a retaining wall block
USD555808S1 (en) 2005-10-11 2007-11-20 Mortarless Technologies, Llc Engagement projection of a retaining wall block
FR2913436B1 (fr) * 2007-03-05 2009-05-29 Terre Armee Internationale Soc Ouvrage en sol renforce et elements de renfort pour sa construction
FR2939157B1 (fr) * 2008-12-02 2013-02-15 Terre Armee Int Ouvrage en sol renforce et elements de parement pour sa construction
US20100215442A1 (en) * 2009-02-26 2010-08-26 Ackerstein Industries Retaining wall stabilization system
PL2372027T3 (pl) * 2010-04-02 2013-04-30 Terre Armee Int Element okładziny licowej do wykorzystania w stabilizowanej ziemnej strukturze
US20140345220A1 (en) 2013-05-24 2014-11-27 Francesco Ferraiolo Anchoring system for concrete panels in a stabilized earth structure
US20150078838A1 (en) * 2013-09-18 2015-03-19 Kenneth Shaw Horizontal connection for mechanically stabilized earth walls
FR3025815B1 (fr) * 2015-07-07 2016-12-30 Terre Armee Int Insert de moulage et bloc de parement avec un tel insert
AU2016364021B2 (en) * 2015-12-03 2022-05-26 Maurice Andrew FRASER Void former
US20220220691A1 (en) * 2021-01-08 2022-07-14 Earth Wall Products, Llc Mechanically stabilized earth (mse) retaining wall employing geosynthetic strip with plastic pipe(s) around steel rod
US12215473B2 (en) 2021-01-08 2025-02-04 Earth Wall Products, Llc Method for manufacturing panels for earth retaining wall employing geosynthetic strips

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CA656062A (en) * 1963-01-15 J. Coakley Alfred Underground sheeting methods
FR1393988A (fr) * 1963-03-27 1965-04-02 Perfectionnement aux ouvrages de construction
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FR1601049A (fr) * 1968-12-31 1970-08-03
FR2055983A5 (fr) * 1969-08-14 1971-05-14 Vidal Henri
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FR2221588A1 (en) * 1973-01-18 1974-10-11 Petit Jacques Reinforced embankment for roads - uses multiple transverse reinforcement wires to maintain walls vert.
US3997697A (en) * 1973-05-10 1976-12-14 J. Brochier & Fils Fabric with boron filaments
SE389358B (sv) * 1973-06-21 1976-11-01 Fodervaevnader Ab Anordning vid jordarmering.
US3939662A (en) * 1973-12-12 1976-02-24 Phillips Petroleum Company Liquid impervious surface structures
GB1431546A (en) * 1973-12-12 1976-04-07 British Petroleum Co Protection method
GB1485004A (en) * 1974-09-06 1977-09-08 Environment Sec Of State For T Reinforced earth structures
US4167542A (en) * 1977-07-11 1979-09-11 The Dow Chemical Company Polyester resin compositions containing dicyclopentadiene alkenoate

Also Published As

Publication number Publication date
IT7830239A0 (it) 1978-11-27
DE2753243A1 (de) 1979-06-07
IT1100763B (it) 1985-09-28
US4273476A (en) 1981-06-16
JPS54107105A (en) 1979-08-22
JPS6128771B2 (fr) 1986-07-02
ATA845578A (de) 1980-09-15
EP0002216A1 (fr) 1979-06-13
DE2860315D1 (en) 1981-02-19
AT362307B (de) 1981-04-27

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