EP0377541A1 - Verfahren und Vorrichtung zum Ankern der Schuppen einer armierten Erdwand - Google Patents

Verfahren und Vorrichtung zum Ankern der Schuppen einer armierten Erdwand Download PDF

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Publication number
EP0377541A1
EP0377541A1 EP90420001A EP90420001A EP0377541A1 EP 0377541 A1 EP0377541 A1 EP 0377541A1 EP 90420001 A EP90420001 A EP 90420001A EP 90420001 A EP90420001 A EP 90420001A EP 0377541 A1 EP0377541 A1 EP 0377541A1
Authority
EP
European Patent Office
Prior art keywords
scale
pads
support plate
support
tie rod
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.)
Granted
Application number
EP90420001A
Other languages
English (en)
French (fr)
Other versions
EP0377541B1 (de
Inventor
Bruno Flourens
Polyno Ung
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.)
Flourens Bruno
Ung Polyno
Original Assignee
Flourens Bruno
Ung Polyno
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9377454&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0377541(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Flourens Bruno, Ung Polyno filed Critical Flourens Bruno
Publication of EP0377541A1 publication Critical patent/EP0377541A1/de
Application granted granted Critical
Publication of EP0377541B1 publication Critical patent/EP0377541B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0086—Bearing plates
    • 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
    • E02D17/02—Foundation pits
    • E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements

Definitions

  • the subject of the invention is a method and a device for anchoring the scales of a reinforced earth wall.
  • Some reinforced earth walls are made up of unreinforced concrete scales on their outside facing which hold the grounds by means of metal reinforcements embedded in the grounds and moored to the scales. Some walls thus constructed are threatened with ruin due to the oxidation of the frames embedded in the ground.
  • the subject of the invention is a method and a device making it possible to effectively repair such walls and to avoid their ruin.
  • the scales are anchored by means of support plates which retain them and which are properly anchored to the ground.
  • the first plates used had a square shape and then a four-pointed star. As, over their entire surface, they are in contact with the supported scale, they do not allow the desired anchoring force to be obtained in the tie rod. Indeed, cracks appear in the scale from the central hole (12), whatever the dimensions of the support plate, while the force required in the anchor rod is not yet reached.
  • the method of anchoring the scales of a reinforced earth wall, which are held in place by support plates by means of tie rods suitably anchored in the ground and the head of which passes through a previously drilled hole substantially in the center of the scale is characterized in that: - said support plates are given a shape such that they rest on the scale they cover by means of several skids or feet equidistant from the center of the scale and located on the axes of symmetry or the diagonals of tortoiseshell, - the number of skates is greater than or equal to 4, - the pads are the only points of contact between the scale and the support plate, - The support plate is secured to the head of the tie rod by a nut.
  • the invention also relates to a device allowing the implementation of the above-mentioned method, and more precisely a support plate characterized in that: - It is in the general form of a star with 4 suitably ribbed branches, coming from a crown or from a hub forming a central sleeve for the passage of the head of the tie rod and the support of the tightening nut of tensioning of the tie rod, - each branch of the star formed by the support plate has at its end a raised pad allowing the plate to press on the scale by these pads only, - It is obtained by molding.
  • FIG. 1 there is illustrated in longitudinal section, at the level of the head of a tie rod, the positioning of a support plate making it possible to retain a scale of unreinforced concrete from the facing of the wall. in an armed land threatened with ruin.
  • the terrain is referenced and in 11, a scale of the facing which is of substantially rectangular shape with recesses facilitating the staggered laying of these scales, as it appears more clearly in FIG. 2.
  • FIG. 1 it can be seen that, in the unreinforced concrete scale 11, a hole 12 has been drilled substantially in the center of the scale, as also identified in FIG. 2.
  • the hole 12 has been made at an angle determined by calculation, suitably inclined on the horizontal as it appears more clearly in figure 3.
  • the drilling was done, through the scale and over a length calculated, in the land, this length being a function of the nature of the land and the height of the embankment to be maintained.
  • the length of the tie rod, at the level of the median scale 11 was of the order of 5 meters.
  • a draft and drilling length of 4 meters may be sufficient, while at the underlying level 11 ⁇ , the calculation will indicate a draft length of 6 meters for example.
  • the tie rod has been identified, which may be constituted by a steel bar comprising, at its head 14, a thread for placing a tightening nut over a support washer 16 and a seal 17 (for example, made of Shore hardness rubber 80) holding the support plate 18 which is carried by its pads 19 on the outer surface of the scale 11.
  • the support plate 18 has, on its internal face turned towards the terrain, a sort of crown 20 towards the rear and a hub 41 towards the front forming a central sleeve, the whole inclined along an axis 42 on the horizontal and therefore at an angle relative to the general support plane of the plate 18.
  • a tube 21 made of a suitable plastic material such as PVC is engaged on the crown 20.
  • another section of tube of similar quality plastic material 22 is engaged, comprising a truncated cone 22a uniting a portion of reduced diameter 22b which encloses the tube 21 and a portion 22c of enlarged diameter adapting, with a certain clearance, to inside the borehole 12.
  • a third section of tube 23 of similar quality is also received.
  • the total length of the three sections engaged end to end 21, 22, 23 is chosen so as to correspond substantially to the thickness of the scale 21.
  • These sections can be joined together, for example, by gluing or heat sealing, and the tube 21 can be fixed, for example by gluing on the crown 20.
  • the support plate 18 is in the form of a star with 4 ribbed branches, marked 34 to 37, oriented at 90 ° from each other, and positioned on each scale such that 11, so that the support pads 19, located at the ends of each branch, are on the diagonals 38, 39 of the scales, at a certain distance from their center 40, where the orifice 12 has been drilled the passage of the tie.
  • the scales such as 11 were of a substantially square shape 1.50 m on a side, while the 4-pointed star 18 was inscribed substantially inside a 40 cm square side, i.e. a distance from shoe 19 to shoe 19, opposite on the same diagonal, of the order of 50cm.
  • the plate 18 is made of cast iron, as well as the pads 19 which are part of this plate.
  • the abovementioned support plates make it possible to limit, to precise regions of the unreinforced concrete flakes 11, the rigid support contacts, which allows the abovementioned scales to withstand, in much better conditions, the forces brought by the anchors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Paleontology (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Piles And Underground Anchors (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Retaining Walls (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP90420001A 1989-01-03 1990-01-02 Verfahren und Vorrichtung zum Ankern der Schuppen einer armierten Erdwand Revoked EP0377541B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8900031A FR2641295B1 (fr) 1989-01-03 1989-01-03 Procede et dispositif pour l'ancrage des ecailles de soutien d'un mur en terre armee
FR8900031 1989-01-03

Publications (2)

Publication Number Publication Date
EP0377541A1 true EP0377541A1 (de) 1990-07-11
EP0377541B1 EP0377541B1 (de) 1993-06-23

Family

ID=9377454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90420001A Revoked EP0377541B1 (de) 1989-01-03 1990-01-02 Verfahren und Vorrichtung zum Ankern der Schuppen einer armierten Erdwand

Country Status (6)

Country Link
EP (1) EP0377541B1 (de)
AT (1) ATE90984T1 (de)
DE (1) DE69002007T2 (de)
DK (1) DK0377541T3 (de)
ES (1) ES2043327T3 (de)
FR (1) FR2641295B1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0861969A1 (de) * 1997-02-26 1998-09-02 Johannes Radtke Ankerplatte
DE19754506A1 (de) * 1997-12-09 1999-06-10 Ross Kurt G Pfeiler-Anker-Stützkonstruktion
EP0939168A3 (de) * 1998-02-26 1999-12-08 Kurt G. Ross Verfahren zur Sanierung von Stützmauern
FR2796091A1 (fr) 1999-07-09 2001-01-12 Bouygues Travaux Publics Plaque d'appui de repartition de la charge d'un tirant et ses applications
FR2900669A1 (fr) * 2006-05-04 2007-11-09 Profractal Sarl Procede de protection contre la corrosion d'ouvrages en sol renforce
FR2953231A1 (fr) * 2009-11-30 2011-06-03 Geotechnique Et Travaux Speciaux Procede de confortement d’un terrain et ouvrage de confortement
WO2012029012A3 (en) * 2010-08-30 2012-06-21 Ian Levitan A bearing plate assembly for a rock anchor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH448941A (fr) * 1966-04-22 1967-12-31 Antoine Talobre Joseph Dispositif de soutènement pour paroi rocheuse
US3415066A (en) * 1966-01-12 1968-12-10 Chester I. Williams Bearing bracket for rock bolts
EP0166656A2 (de) * 1984-06-29 1986-01-02 Claude Louis Vorgefertigte Stützelemente zum Schutz, Verstärken und/oder Bekleiden von Ausschachtungen, Anker- und Verbindungsvorrichtungen und Verfahren zum Anwenden dieser Elemente und Vorrichtungen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464308A (en) * 1967-03-08 1969-09-02 Dohmeier Hans Otto Rod anchoring means
FR2334806A1 (fr) * 1975-12-12 1977-07-08 Roumagnou Andre Procede et tirant pour la consolidation de constructions telles que ponts et murs d'avenue

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415066A (en) * 1966-01-12 1968-12-10 Chester I. Williams Bearing bracket for rock bolts
CH448941A (fr) * 1966-04-22 1967-12-31 Antoine Talobre Joseph Dispositif de soutènement pour paroi rocheuse
EP0166656A2 (de) * 1984-06-29 1986-01-02 Claude Louis Vorgefertigte Stützelemente zum Schutz, Verstärken und/oder Bekleiden von Ausschachtungen, Anker- und Verbindungsvorrichtungen und Verfahren zum Anwenden dieser Elemente und Vorrichtungen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0861969A1 (de) * 1997-02-26 1998-09-02 Johannes Radtke Ankerplatte
DE19754506A1 (de) * 1997-12-09 1999-06-10 Ross Kurt G Pfeiler-Anker-Stützkonstruktion
EP0939168A3 (de) * 1998-02-26 1999-12-08 Kurt G. Ross Verfahren zur Sanierung von Stützmauern
FR2796091A1 (fr) 1999-07-09 2001-01-12 Bouygues Travaux Publics Plaque d'appui de repartition de la charge d'un tirant et ses applications
FR2900669A1 (fr) * 2006-05-04 2007-11-09 Profractal Sarl Procede de protection contre la corrosion d'ouvrages en sol renforce
WO2007128913A1 (fr) * 2006-05-04 2007-11-15 Profractal Procede de protection contre la corrosion d'ouvrages en sol renforce
FR2953231A1 (fr) * 2009-11-30 2011-06-03 Geotechnique Et Travaux Speciaux Procede de confortement d’un terrain et ouvrage de confortement
WO2012029012A3 (en) * 2010-08-30 2012-06-21 Ian Levitan A bearing plate assembly for a rock anchor

Also Published As

Publication number Publication date
FR2641295A1 (fr) 1990-07-06
ATE90984T1 (de) 1993-07-15
FR2641295B1 (fr) 1991-12-13
DK0377541T3 (da) 1993-10-25
DE69002007D1 (de) 1993-07-29
DE69002007T2 (de) 1994-06-01
EP0377541B1 (de) 1993-06-23
ES2043327T3 (es) 1993-12-16

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