EP1567726A1 - Dispositif d'ancrage - Google Patents

Dispositif d'ancrage

Info

Publication number
EP1567726A1
EP1567726A1 EP03812397A EP03812397A EP1567726A1 EP 1567726 A1 EP1567726 A1 EP 1567726A1 EP 03812397 A EP03812397 A EP 03812397A EP 03812397 A EP03812397 A EP 03812397A EP 1567726 A1 EP1567726 A1 EP 1567726A1
Authority
EP
European Patent Office
Prior art keywords
holding
wire
ground
fixing
arm
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Withdrawn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
EP03812397A
Other languages
German (de)
English (en)
Inventor
Fredrik Brop Bengt Lagercrantz
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1567726A1 publication Critical patent/EP1567726A1/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Withdrawn legal-status Critical Current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
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • E02D5/803—Ground anchors with pivotable anchoring members

Definitions

  • the present invention relates generally to an anchoring devices or an arrangement and more specifically to such an anchoring device having the features stated in the preamble of claim 1.
  • Devices for anchoring have been developed for attaching wires subject to tension, such as staying masts or antennas of different types, but devices of this kind may also be used for staying or supporting other means or as a general fixation.
  • the same technique can be used to anchor or fix or hold two separat elements to one another.
  • a fixing or holding arm is fixed to a primary element through a transversal revolving connection in order to let the said holding element take a position close to and along the primary element, pointing its outer extremety in the direction of intrusion during an intrusion sequence and on the other hand in its final position take an inclined direction in relation to the central straight element and serve as a fixing and/or holding device, which will considerably obstruct the removal of the arrangement from its fixed position in the ground.
  • the arrangement of this kind can be made to protrude or pushed down through the ground by using blows aimed in the direction of the primary central element and/or by rotating the element around an axis coinciding with the primary central element.
  • the said device can be considered to consist of a straight central element, a holding or fixing element and a sleeve or equivalent mechanical arrangement. It consists of a first extremity with a tip intended to protrude the ground situated below the mentioned section of ground a distance which is shorter than the total length of the element and a second extremety adapted to stretch a distance above the mentioned sector of ground.
  • the fixing or holding element is connected directly or indirectly to the primary element through a revolving connection in order to be able to take a position close and along the primery element or a second position pointing outwards from the direction of the primary element.
  • said wire consist of a high strength wire with a diameter of 10 mm or more and preferably between 1 and 6 mm for this specific application.
  • the device according to this invention is based upon a design suitable for use as an anchoring device and can be regarded to consist mainly of a primary straight central element made from a tube or rod and a rigid holding and fixing arm which can be locked in its outer position by a wire.
  • the holding and fixing arm should be rigid because this will prevent a successive partial loosening because of local concentration of pressure on the ground.
  • a thanks concentration of the pressure will cause a deformation in the ground in this specific point, which in turn will move the point of highest concentration to a different point of the arm.
  • the point of highest relativ pressure will allways deform and result in a continued deformation of a flexible arm. The deformation would move along a flexible arm with the successive deformation.
  • a flexible arm could work itself up through the ground when subject to deformation due to variation in pressure along the arm.
  • the force transmitting wire connecting the holding and fixing arm to the central straight element should be flexible in order to facilitate the intrusion into the ground and pass obstacles such as stones or roots. It will not be obstructed by an uneven stucture. Because of its flexibility it will take up the force and yet pass obstacles along an unstraight line. More specifically it is a question of letting the mentioned primary element have a sharpened or an inclined cutting of the first extremity intended to protrude the ground.
  • the element for anchoring should be intruded a distance in the sector of ground which is shorter than the total length of the device and have a second extremety adapted to stretch up a distance above the mentioned section of ground.
  • Futher the invention descibes a guided second element which can be well adapted to surround the mentioned primary element such as a sleeve or a guide inside the primary element such as a rod or profile in order to prolong the element for anchoring.
  • the rigid holding arm During intrusion into the ground the rigid holding arm is forced to start turning outwards in the ground in a controlled position and to a controlled extent by the design of the inner rod or tube or the design of a corresponding special tool used for intrusion.
  • the invention is based on an arrangement which can be considered to consist of a primary element from a tube or bar and a holding and fixing arm or arms, which can take an inactiv position along the primary element and an activ position pointing out from the primary element.
  • the mentioned primary element could preferably have a first extremety, which is pointed or cut obliquely, which is facilitating the protrusion into the ground under a groundsurface to a depth which is adjusted to be schorter than the total length of the element and a second extremety extending a distance above the mentioned groundarea, which will serve as a fixing point for a force resistant wire or cord.
  • the mentioned holding and fixing arm or arms could preferably have a pointed first extremety, which is pointed or cut obliquely, which is facilitating the protrusion into the ground.
  • a sliding secondary element could be designed to be guided within a section between the first and second extremety of the primary element and serve as a prolongation of the central element and a second fixation of the wire.
  • the mentioned holding arm or arms are fixed to the primary element through a transversal revolving connection in order to hold an inactive position along and adjecent to the primary element and an active holding position pointing out from the primary element.
  • the present invention points out that the known technique must be complemented with a wire connecting the holding and fixing arm in its outer part from its revolving connection directly or indirectly to the central element with a wire with a length which is chosen to be equal or somewhat exceeding the distance between the points of fixation to the central element and the holding and fixing arm.
  • a wire with a length which is chosen to be equal or somewhat exceeding the distance between the points of fixation to the central element and the holding and fixing arm.
  • the holding and fixing arm is connected to the primary element through a transversal revolving element positioned on the middle part of the primary element with the tip of the holding element pointing in the direction of intrusion thus permitting the holding and fixing arm to turn outwards from the primary central element during intrusion after releaving any blocking of its position against the primary central element.
  • the holding device After intrusion into the ground and with the holding and fixing arm in its outer position and the wire between the holding and fixing arm and the central element tightend and secured, the holding device will give a resistance against pulling out the device from the ground and thus serve as a ground anchor or generally as a holding and fixing device.
  • the wire should be a cord or wire of high strength material such as steel and that the diameter of the wire should be thinner than 10 mm and preferably be between 4 and 6 mm.
  • the positioning of the revolving connection of the holding and fixing arm or arms can be positioned on the extremety or close to the extremety of the primary element, combined with a design of the free extremety of the holding and fixing arm or arms for intrusion which is inclined in order to achieve a turning movement of the holding and fixing arm or arms when the primary element is pushed down into the ground and in relation to a surrounding sleeve.
  • the holding and fixing arm or arms should have the shape of an arm with a transversal revolving connection of the arm situated on the opposite side of the primery element from the position of the holding and fixing arm.
  • holding and fixing arm or arms have a U-shaped, V- shaped or semicircular section with a distance between the legs which is slightly exceeding the diameter of the primary element.
  • the present invention shows an arrangement when a turning or rotating movement of the mentioned primary element will drill the gound anchor with its holding and fixing arm or arms and a secondary element such as a sleeve circumscribing the central element, through the ground into a section of the ground during which operation the holding and fixing arm or arms stay in an inactive position close to the central primary element.
  • This application (fig. la) of the present invention shows the design of the first penetrating part of the element for ancoring, which has a design corresponding to the beginning of a screwlike shape, like an edge or a screwlike shape.
  • the penetrating extremety of the holding element is given a shape like a spiral or screw, which can be made by shaping a bent plate or the edge of a plate unit.
  • the invention futher shows that the mentioned extremety for intrusion with an edge or beginning of a spiral or screwlike shape should have an inclination which keeps the mentioned holding and fixing arm or arms tight against the central component during the rotating movement through the ground, (fig.2-56)
  • a crossbeam (fig.6-57) on the inner part of the holding and fixing arm or arms will serve to keep the holding and fixing arm or arms in position against the central component by an inner rod or tube as long as the tip of the rod or tube is kept on the inside of the holding crossbeam.
  • the invention gives the possibility to offer an ancoring device with a ridged arm or arms, which can be brought to an active holding locked position for securing the device in the ground or take an inactive position adjacent to the central element by slacking the tension in the wire and pull it upwards and thereby removing it from its holding position in the ground. It must be observed that the holding and fixing arm or arms, when the tension of the wire is released by slacking the wire, can take a position pointing in the direction of intrusion in order to facilitate the removal of the device after use.
  • the invention is based on the use of a wire between the central primary element directly or indirectly through a sleeve or rod guided by the central element and the holding element, which is fixed to the central element through a transversal revolving connection.
  • the wire can be stretched and locked, keeping the holding and fixing arm or arms in its active outer position and thus securing the ancore in the ground.
  • the dimension of the holding and fixing arm, its transversal revolving connection and the central rod can be designed to favorable reduced dimensions, and yet present high resitance, since the wire can be fixed to the central part of the arm. This will reduce strain conciderably compared to a design where the arm is held only in its inner connection to the cental rod.
  • the resistance against removal, when inserted, will be considerably improved when the holding and fixing arm is held by a wire in its central part compared to a fixation of its extremety.
  • the device When the device is fully inserted into the ground according to the figur lc, it is suited to serve as a ground anchore for an arrangement positioned above the ground, which is not shown in this drawing. This position is denoted an active position in the following text since it mainly contributes to the fixation of the anchore.
  • the outer arrangment can be a mast, a pole or something equivalant where the mast is stayed by wires or cables and where the wire should be attached with its extremeties to the arrangement and to the ground anchore.
  • the ground anchor according to figure 1 can be considered to consist of a rodlike element 10, a first sleeve 20, a second sleeve 30, a flange 40 and a holding and fixing arm 50.
  • This application shows a version with an outside sleeve 20, which serve to prolong the anchore.
  • the inner extremety of the central component 12 and the inner extremety of the sleeve 22 have guidings with seals as to serve as a hydraulic cylinder which can be used to pull the expanded anchor together when pulling it out from its fixed position in the ground.
  • the holding force exerted by the ground is taken up by the holding and fixing arm in its outer position and transfered to the wire 60.
  • the bottom plate fig. 2b-56 on the extremety of the holding device serve as cutting edge when the ancore is turned and pushed into the ground.
  • the wire fig. 2b-60
  • Fig 2b shows a view of the holding arm and the central element when the anchor is in its folded position.
  • Fig. 2d shows a section of the ground anchor in a folded position.
  • This application shows a version with an outer sleeve, which can slide along the central element fig. 3a-10).
  • a tool fig.3g consisting of a separate straight, pointed rod set inside the ancore during insertion and used for inserting the anchore into the ground.
  • the tip of the tool is entering under a crossbeam fig.3 -58 in the holding and fixing arm fig. 3-50 keeping it in its folded position against the central element.
  • the tool fig. 3g is lifted and turned half a turn in order to push the same crossbeam 58 outwards and thus forcing the holding and fixing arm to turn outwards.
  • the holding and fixing arm is futher pushed outwards by ground material entering in between the central element and the holding and fixing arm during the continued penetration through the ground.
  • the holding force is taken up by the wire and transfered to the sleeve with its holding plate 43.
  • the wire When loosening the anchore, the wire is mooved from a locked position in tracks in the guiding plates. With the slacked wire the anchore can be pulled up from its position in the ground.
  • the anchor can be expanded to become a longer unit by pulling out the inner tube fig.4a-20 and securing it to the central element fig. 4a- 10 with a bolt 21.
  • the wire is stretched during and after insertion by pulling the sleeve fig. 4a-40 to its upper position.
  • the holding element(50) is held in its outer position by the wire 60 which is held in a stretched position by a sleeve(40) which can be secured to the inner tube 20 by a bolt fig. 4a-46.
  • the anchor can be loosened by unlocking the sleeve fig. 4a-40 and slackening the wire.
  • a version of this design can be made using a longer central element without the possibility to expand.
  • the sleeve is guided directly around the central component.
  • the guided element may also be replaced by tracks in the guiding plate, which are guiding and holding the wire.
  • This application shows an inner central component fig. 5b- 10 with two holding and fixing arms (fig. 5b-50a,50b and an outer sleeve fig.5b-20 and two wires 60. Both wires are connected with one extremety to the flange 40 situated on the outer part of the central element 20 and the other extremety of each wire connected to one of the holding and fixing arms to its outer part in relation to the point of revolving connection to the inner central component 10.
  • the wires 60 have a length which slightly exceeds the distance between the flange 40 and the point of fixation on the arms in a position when the arms are pushed forward by the central element 10 in relation to the sleeve 20 and can rotate freely from the sleeve 20.
  • the wires can be futher stretched by turning the head fig. 5b-40 of the sleeve and thus securing the holding and fixing arms in a turned out position perpendicular to the extension of the arms 50a and 50b.
  • Fig.5a shows a section with the holding and fixing arms in a straight position.
  • Fig. 5b shows the fixing and/or holding device in the same position in a different sideview.
  • Fig. 5c shows the the fixing and/or holding device in a fixed position with the holding and fixing arms in a secured holding position.
  • This application shows a version of the invention with a primary central element (Fig.6a- 10) made from a tube and a holding and fixing arm 50 which is fixed to the primary element through a transversal revolving connection 51 and a wire 60 connecting the outer part of the holding ang fixing arm counting from its revolving connection and the second extremety of the wire connected to a guiding track 21 in the guidmg plate 11 with a notch for fixation in an upper position.
  • a primary central element Fig.6a- 10
  • a holding and fixing arm 50 which is fixed to the primary element through a transversal revolving connection 51 and a wire 60 connecting the outer part of the holding ang fixing arm counting from its revolving connection and the second extremety of the wire connected to a guiding track 21 in the guidmg plate 11 with a notch for fixation in an upper position.
  • the holding and fixing arm 50 When futher introduced into the ground via the tool the holding and fixing arm 50 will be pressed outwards by the inclined extremety 71 of the tool and forced to turn outwards. Futher intrusion will force the holding and fixing arm to turn outwards to its holding position, where the wire can be stretched and locked in the upper notch (f ⁇ g.6-21) of the track 21.
  • the holding force from an external separate wire can be applied to the bent element (fig.6a-43) intended for fixation of a wire connected to a mast or other object.
  • Figur lb shows the ground anchor fixed in the ground in a view looking from the side of the holding element.
  • Fig. 6e shows the ground anchor in a folded position with the wire in an unstretched position.
  • the holding and fixing arm has a crossbeam 57 as a guide and a point for locking the arm 50 in a folded position against the central element 10 during the first part of intrusion.
  • the locking is effected by a separat tool 70.
  • the locking tool can be pulled up a schort distance and turned a half turn and reintroduced.
  • the holding and fixing arm will be pushed on its cross beam by the inclined extremety 71 of the tool 70 and forced to turn outwards around its revolving connection 51.
  • a futher intrusion into the ground will force the mentioned holding and fixing arm 50 to turn further outwards into a locking position.
  • the depth of intrusion after unlocking the arm from its folded position should be adapted in order to reach a final outer position of the arm 50 which will allow the wire 60 to be streched and locked in an outer position along the central straight element 10 in the tracks 21.
  • This position of the holding and fixing arm in relation to the central straight element is denoted "inactive position" since it does not directly contribute to a fixing or holding of the anchor to a conciderable extent.
  • the outer arrangment can be a mast, a pole or something equivalent where the mast is stayed by wires or cables and where the wire should be attached with its extremeties connected to the arrangment and to the ground anchor.
  • the ground anchor according to figure 1 can be considered to consiste of a rodlike element 10, a firste sleeve 20, a second sleeve 30, a flange 40 and a holding and fixing arm 50.
  • the mentioned holding and fixing arm 50 can take a position close to and along the the rodlike element 10 according to the figures la and lb and in that position the holding and fixing arm does not contribute to any fixing or holding of the anchor but in which position the holding and fixing arm takes a position where it can follow the rodlike element 10 in its intrusion into the ground below a section "M" of the ground.
  • the arm 50 will get its function as a holding and fixing arm when it is turned outwards from its position according to figure lb into a position according to figure lc.
  • arm 50 could take any position between the shown positions depending on conditions of the ground material.
  • the mentioned rodlike element 10 has a pointed first extremety 10a intended to protrude through the ground below the mentioned section "M" of the ground a distance which is adapted to be shorter than the total length of the rodlike element 10 and a second extremety 10b which is adapted to strech a distance above the mentioned section of the ground "M'.
  • the mentioned sleeve 20 is adapted to surround the mentioned rodlike element 10 within a part of the length situated between the first and second extremety 10a and 10b.
  • the length of the sleeve 20 has been denominated "LI" in figure la.
  • the mentioned holding and fixing arm 50 has a revolving and fixing connection to the rodlike element 10 in a point of rotation or shaft 51.
  • the revolving function and the shape of the holding or fixing rigid arm is adapted in order to permit a position along and close to the central element according to figur lb and lc or a different position pointing outwards from the central element according to figur lc, which will be described in the following text.
  • a wire 60 is connected for taking up a pulling force, which is exerted on the outer extremety 10b.
  • the wire 60 for taking up the pulling force has an effective length "L2" corresponding to or slightly exceeding the length between the attachment point 52 on the holding or fixing arm in its folded position against the central straight element and the point of fixation 31 on the sleeve 30.
  • a relativ displacement of the sleeve 30 in relation to the rodlike element 10 in a direction towards the second extremety 10 b will create a pulling force in the wire 60 which will turn the holding and fixing arm 50 from its position against the rodlike element according to figure lb to a position pointing outwards from the rodlike element.
  • the rodlike element 10a has a hexagonal or square socket head, for turning the total of the anchor like a stiff body, with a locking of a pin inserted in a hole between the inner rod and the surrounding sleeves.
  • the holding and fixing arm will be turned around and drill itself into the ground by the design of the tip 10a and the wing 56.
  • the pin When the flange reaches the groundlevel, the pin is loosened and the inner sleeve 20 rotated, which will displace the second sleeve 30 upwards and simultaniously stretch the wire 60.
  • the holding and fixing arm 50 is pulled against the sleeve by the wire.
  • the arm 50 is pulled upwards in the ground and fixes the anchore and will pull the sleeve 30 downwards.
  • the anchor will be displaced a little in relation to the groundlevel, probably upwards, and an adjustment of the flange is done by screwing it downwards against the surface of the ground.
  • the present invention advices that the mentioned wire 60 should be made of a high strength material such as steel and have a diameter not exceeding 10 mm and preferably be between 1 and 6 mm.
  • the mentioned holding and fixing arm should be ridged against bending and have a point of transversal, revolving connection preferably situated on the opposite side of the central straight element 10 in relation to the position of the holding and fixing arm itself.
  • the arm 53 is given a shape of a U-section, where the distance "L3" between the legs 54, 55 is adapted to exceed the the thickness of the rodlike element.
  • the present patent application also shows a version of the invention for which a rotating movement will bring the device into the ground accomplished by the shape and design of the extremety 10a, during which the holding and fixing arm stays in a passiv position close to and along the central straight element 10. Se figur la .
  • the beginning of the spiral or screw is made by the shape of the outer extremety or with a bent piece of plate.
  • the shape of the endplate be given an inclination and design shown i figur 2b and figur 2d which implies that the holding and fixing arm is kept folded against the central straight element when the anchor is turned and screwed downwards into the ground.
  • this prolongation 57 should be enclosed by a sleeve and thus prevented and locked against a turning of the arm in relation to the shaft 51 so that the arm takes a position close and along the central straight element 10.
  • the sleeve is given an external screwlike thread 32 and an internal screwlike thread 33.
  • the external thread 33 is interacting with an internal thread 41 in the flange 40.
  • the internal thread 33 is interacting with an external thread 21 in the sleeve 20.
  • the sleeve 20 is connected and enclosed to the rodlike element 10 as a freely rotating sleeve 20.
  • the inner sleeve 20 has an external threading 32 and is adjoined and freely rotating around the rodlike element 10 and locked against axial displacement by a first and second stopper.
  • the mentioned stopper has the shape of a flange and head 10c of the mentioned rodlike element 10.
  • the mentioned rodlike element 10 and the mentioned ⁇ sleeves 20, 30 and the flange 40 are coordinated through holes, intended for a locking during the rotating movement and the positions of the holes are indicated in figure la.
  • the foldable arm 50 When the outer sleeve 30 is positioned in its lower position towards the tip 10a, the foldable arm 50 is locked in its inner position against the rod 10. The upper prolonged extremety of the arm 57 close to the revolving connection 51 rests against a stopping edge in the sleeve 30.
  • the anchor or the device can be regarded as a screw. It can be turned around and screwed downwards into the ground.
  • the arm 50 is kept folded on one side by the shape of the tip and on the other side by force by the upper extremety 57 resting against a stopping edge in the sleeve 30.
  • the anchor is screwed down into the ground by turning the rodlike element via its head 10c. All the sleeves 20, 30, 40 are locked against rotation by a through pin placed close and above the flange 40.
  • the outer sleeve 30 with a small flange 34 is moved uppwards until the wire 60 connected to the arm is streched.
  • the folding arm 50 will be holding back and tend to turn outwards and uppwards by the torque exerted around the point of attachment 51 when the wire (60) is streched.
  • the foldable arm 53 is pulled against the sleeve 20 and is also turned around its revolving connection.
  • the streched wire 60 will pull the arm against the outer sleeve 30.
  • the arm 50 is turned outwards in the ground and is fixing against the ground and the streched wire 60 will tend to pull the central rodlike element 10 downwards when the sleeve 30 is screwed upwards on the inner sleeve 20.
  • the inner sleeve 20 is turned around, which will displace the outer sleeve uppwards and tighten the wire 60.
  • the wire 60 will pull the tip 56 of the arm uppwards and outwards by the torque around the connection 51.
  • the tip 56 on the arm 50 will be pulled along a bowshaped curve outwards into the ground.
  • the flange 40 is turned around its outer sleeve 30 and is screwed downwards against the surface of the ground "M”.
  • the wire 60 is streched and the flange 40 is resting against the surface of the ground and a holding force is acting between the lower surface 40a of the flange 40 and the outer surface 53 a of the arm.
  • the anchor is now loched against the ground in a holding and fixing position.
  • the positions are locked with a through pin going through the rod 10 and the sleeves 20, 30 and 40.
  • the flange 40 is screwed upwards first.
  • the inner rod 10 and the sleeves 20, 30 can move downwards a little so that the tension of the wire is released.
  • the rod 10 is pulled uppwards and will pull the inner connection 51 of the arm 53 upwards.
  • the arm 53 will be folded inwards towards the rod and the fixation of the anchor will loosen.
  • the application shown in figur 2a, 2b and 2 c discribes an undosa central straight element with a telescopic function which is used in order to extent the length of the fixing and/or holding device during insertion into the ground.
  • a separat tool made from a rod is used to insert the device into the ground.
  • the tool also locks the cental straight element to the telescopic sleeve in order to avoid rotation between the two parts during intrusion.
  • a first partial intrusion into the ground is done by turning and therby screwing the central straight element and the holding and fixing arm into the ground. This is done by using a special tool inserted inside the central straight element through the prolongating sleeve.
  • the inner rod 10 or tube By applying a force directly in the direction of intrusion on the inner rod or tube, the inner rod 10 or tube will intrude into the ground. A force is applied vertically in the direction of intrusion on the extremety of the inner tube or rod inside the sleeve 20. The force will push the central straight element into the ground. When the upper sleeve reaches the surface of the ground it will be held back and the inner rod or tube will move futher into the ground and in relation to the sleeve 20.
  • the sleeve 20 is held back when getting in contact with the ground and the wire 60 is streched until the holding and fixing arm reaches its outer position and until the sleeve 20 reaches its outer position in relation to the inner rod or tube 10. In this position the wire will be streched and take up the force applied to the endplate 43 of the sleeve 20.

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  • Engineering & Computer Science (AREA)
  • Structural 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)
  • Piles And Underground Anchors (AREA)
  • Catching Or Destruction (AREA)

Abstract

Dispositif d'ancrage qui possède un élément central primaire (10) sous forme de tube ou de tige, un élément de retenue (50) pointant dans la direction d'introduction et fixé à l'élément primaire par une connexion transversale de pivotement (51) et un fil (60) dont la première extrémité est reliée à la partie externe de l'élément de retenue à partir de sa connexion de pivotement et dont la seconde extrémité est reliée directement ou indirectement à l'élément central primaire. Lorsqu'il est enfoncé dans le sol, l'élément de retenue est maintenu de force par le manchon (30) ou par une tige interne dans une position repliée contre l'élément central, pendant la partie initiale de l'enfoncement. Lorsque le dispositif d'ancrage a été introduit dans le sol (M) jusqu'à une profondeur choisie, l'élément de retenue est libéré et contraint à pivoter vers l'extérieur lors de l'enfoncement sous l'effet du couple exercé sur l'élément de retenue grâce à la connexion de pivotement. Le couple de pivotement est amélioré par traction du fil ou par poussée du fil vers l'extérieur à l'aide d'une partie intégrée dans le dispositif ou d'un outil séparé ou grâce à la forme de son extrémité. Lorsque le dispositif est enfoncé plus profondément dans le sol, l'élément de retenue est poussé vers l'extérieur et contraint à pivoter plus avant vers l'extérieur. Lorsque le dispositif est enfoncé plus profondément encore, l'élément de retenue est contraint de parvenir par pivotement vers l'extérieur à sa position de retenue dans laquelle le fil peut être tendu et bloqué directement ou indirectement sur l'élément central. La force de retenue peut être appliquée sur une partie conçue pour la fixation d'un fil (42) relié à l'extrémité externe de l'élément central primaire ou à un prolongement dudit élément central primaire et connecté en outre à un mât ou à tout autre objet externe.
EP03812397A 2002-12-03 2003-05-30 Dispositif d'ancrage Withdrawn EP1567726A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0203585 2002-12-03
SE0203585A SE524884C2 (sv) 2002-12-03 2002-12-03 Fästelement
PCT/SE2003/000891 WO2004051006A1 (fr) 2002-12-03 2003-05-30 Dispositif d'ancrage

Publications (1)

Publication Number Publication Date
EP1567726A1 true EP1567726A1 (fr) 2005-08-31

Family

ID=20289757

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03812397A Withdrawn EP1567726A1 (fr) 2002-12-03 2003-05-30 Dispositif d'ancrage

Country Status (5)

Country Link
US (1) US20050150184A1 (fr)
EP (1) EP1567726A1 (fr)
AU (1) AU2003243075A1 (fr)
SE (1) SE524884C2 (fr)
WO (1) WO2004051006A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7603818B2 (en) 2005-05-25 2009-10-20 Guthrie L Lynn Ground anchor
USD689570S1 (en) * 2012-08-16 2013-09-10 Wayne P Adema Soccer ball deflection panel
US20150040491A1 (en) * 2013-08-09 2015-02-12 Joshua W. Frank Anchor device
USD974150S1 (en) * 2021-04-06 2023-01-03 Tsan-Jee Chen Anchor head
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Also Published As

Publication number Publication date
SE524884C2 (sv) 2004-10-19
SE0203585D0 (sv) 2002-12-03
SE0203585L (sv) 2004-06-04
AU2003243075A1 (en) 2004-06-23
US20050150184A1 (en) 2005-07-14
WO2004051006A1 (fr) 2004-06-17

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