EP2981651B1 - Träger und schutzbarriere zum halten eines sich bewegenden objektes - Google Patents

Träger und schutzbarriere zum halten eines sich bewegenden objektes Download PDF

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Publication number
EP2981651B1
EP2981651B1 EP14722257.4A EP14722257A EP2981651B1 EP 2981651 B1 EP2981651 B1 EP 2981651B1 EP 14722257 A EP14722257 A EP 14722257A EP 2981651 B1 EP2981651 B1 EP 2981651B1
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EP
European Patent Office
Prior art keywords
mast
ground
downstream
support
holding element
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EP14722257.4A
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English (en)
French (fr)
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EP2981651A1 (de
Inventor
Pascal Rambaud
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Swincar
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Swincar
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
    • E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
    • E01F7/045—Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps

Definitions

  • the present invention relates to a support intended to be fixed on a ground for the realization of a protective barrier capable of retaining an object moving relative to said terrain.
  • the invention also relates to such a barrier.
  • the invention is particularly applicable to barriers capable of holding blocks down a slope.
  • the barrier serves to protect people, infrastructure and property from falling and falling blocks of rock walls. Implanted across the slope, substantially along contour lines, such a protective barrier is sized to intercept the trajectory of the blocks and stop them by dissipating their kinetic energy.
  • a protective barrier comprises on the one hand metal supports which are fixed in the field, and on the other hand nets, or equivalent, fixed between the supports.
  • the masts are maintained in a position substantially normal to the slope by guy lines, namely upstream stays and downstream stays, and side stays in the case of the end poles of the barrier.
  • downstream stays are not, in principle, not directly solicited in the event of impact of an object or block or snow thrust but they are justified in the event of a direct impact on an upstream stay cable - which has for effect to pull the head of the mast upstream - or to counter a whiplash during the rebound of the block.
  • a first disadvantage of these known barriers is that each stay requires a specific ground anchoring and that these anchors are often difficult and expensive to achieve, especially in soft terrain, even if the traction they support can be moderate, as it is the case of shrouds downstream.
  • Another disadvantage is that the mounting of the barrier is relatively long and can be achieved only on the implantation site, which is often steep, without the possibility of pre-assembly in easy site.
  • this document provides for preventing movement of the head and foot of the mast relative to the ground, both at rest and during a solicitation.
  • Such a barrier can be satisfactory in the avalanche application, preventing the snow from starting to slide down the slope: the movement of the snowpack is blocked before it has time to gain speed and trigger an avalanche .
  • this type of barrier generally does not provide satisfactory protection in all cases, especially to retain blocks downhill slope.
  • the use of such a barrier is limited to small stone barriers, where the net is sufficient to ensure the dissipation of kinetic energy of the block, this barrier does not provide a sufficient level of safety when the potential solicitations are high.
  • the invention aims to remedy the aforementioned drawbacks of the prior art.
  • the first limiting means and the second limiting means comprise respectively a first and a second braking device, the braking devices being designed to prevent movement of the mast downstream at rest, and to brake the movement of the mast downstream under the effect of a bias exerted on the mast, in the mounted position.
  • the first and second braking devices are separate and arranged so that the braked displacement of the mast downstream, in the mounted position and under the effect of a bias exerted on the mast, is substantially in parallel translation in the field, without modifying the inclination of the mast with respect to the ground.
  • upstream and downstream refer to the path of movement of the object.
  • upstream and downstream terms are used with reference to the slope line of the ground.
  • the support according to the invention may be devoid of downstream stay, which limits both the number of ground anchors required and the required assembly time on site.
  • the first and second limiting means are intended to limit the movement of the mast relative to the terrain, that is to say concretely with respect to the corresponding holding element, or with respect to the anchoring of this holding element.
  • limitation has the meaning of: restricting by imposing limits.
  • the movement of the mast is blocked at rest (that is to say in the unconstrained state, in the absence of rock impact or snow thrust), and braked during a solicitation, that is to say restricted in its speed and in its race.
  • the first limiting means are intended to slow the sliding of the foot of the mast during a load, and to prevent this sliding at rest in the preferred embodiment according to which the foot of the mast rests on the ground without being anchored, and if the terrain is sloping.
  • the second means of limitation they are intended to prevent movement of the mast head downstream at rest - when the terrain is sloping - and to curb this movement during a solicitation.
  • the limitation of the upstream movement is not necessary to rest on a sloping ground, because of the inclination of the mast disposed substantially according to the normal terrain.
  • the limitation of the upstream movement is essential in case of stress, because of the absence of downstream stays.
  • the support may be substantially located in a vertical plane, in the mounted position, that is to say when it is fixed on a ground.
  • the lower holding member then substantially follows the slope line of the ground, thus being substantially perpendicular to the mast.
  • the upper holding member it is arranged obliquely, that is to say that it forms with the mast an angle ⁇ neither straight nor zero, for example between 10 ° and 80 °, and can typically be between 20 ° and 40 °, for example of the order of 30 °.
  • the movement of the mast downstream is possible (during a load), but limited by the braking devices that allow to dissipate energy.
  • the braking devices can comprise various elastic, plastic or elasto-plastic means.
  • the kinetic energy dissipation can for example be obtained by deformation or tearing of material.
  • the braking devices may be separate or form a single braking device.
  • One or both of the braking devices may be disposed between the anchor - or the connecting member - and the lower and upper holding members.
  • the first braking device cooperates with the foot of the mast and the lower holding member, and / or that the second braking device cooperates with the head of the mast and the upper holding member.
  • the arrangement of the braking devices is symmetrical, they are therefore located both upstream, in the vicinity of the anchor or downstream, in the vicinity of the mast.
  • first and second braking devices are separate and arranged so that the braked displacement of the mast downstream, in the mounted position and under the effect of a bias exerted on the mast, is substantially in parallel translation in the field, without modifying the inclination of the mast with respect to the ground.
  • this can be achieved by appropriately defining the stroke of the braking devices and their calibration. This arrangement aims to maintain the residual height of the net attached between two adjacent supports after the impact of a block.
  • the support comprises a connecting means between the mast head and the upper holding member, said connecting means being designed to allow the mast to pivot relative to the upper holding member around a substantially transverse axis, when the mast moves downstream relative to the ground, in the mounted position.
  • This connecting means may be a simple oblong hole allowing some rotation of the head of the mast relative to the upper holding member.
  • this connecting means may comprise a clevis articulated on the head of the mast along a substantially transverse axis, and slidably mounted on the upper holding element along the axis thereof.
  • each of the devices brake may comprise a sleeve surrounding said bar and disposed between the foot, respectively the head, of the mast and the downstream end of the bar, the sleeve being designed to be compressed - plastic or elastic - between the mast and the mast. downstream end of the bar to curb the movement of the mast downstream relative to the lower and upper holding elements.
  • the lower holding member may comprise a stay or, conversely, be rigid.
  • the lower holding member and / or the upper holding member is in the form of a rigid bar.
  • connection element intended to be anchored in the ground.
  • a braking device could be interposed between the connection element and the upper and / or lower holding element.
  • connection element may for example comprise a transverse axis ring (that is to say substantially orthogonal to the mast and the lower holding element). This is a very simple way to connect the upper and lower holding elements to each other and to the anchorage. In addition, such a ring structure can dissipate a little energy.
  • the foot of the mast may comprise a base adapted to allow the support to rest substantially stable on the ground before fixing the support on the ground. Therefore, the support according to the invention can be pre-assembled at the factory, and its installation is easier because of its self-stability.
  • the base may comprise a transverse tube portion.
  • the following description is made in the case of a barrier installed on sloping ground, it being specified that this application is not limiting.
  • the barrier could also be installed on a substantially horizontal ground, around an installation or a machine for example.
  • a barrier 1 according to the invention is intended to be mounted on a slope 2 in order to be able to retain blocks downstream of said terrain and dissipate their kinetic energy, or to limit the crawling of a snowpack.
  • the reference (X, Y, Z) is defined with respect to the terrain, where X is the direction along the slope line, substantially parallel to the terrain, Y is the transverse direction and Z is the normal terrain, Z is therefore not vertical. .
  • the terms “upstream” and “downstream” are used with reference to the X direction; the term “lateral” is used with reference to direction Y.
  • the barrier 1 comprises a plurality of supports 3 fixed on the ground 2, preferably at substantially regular intervals and along a contour line.
  • the net 4 is preferably mounted between an upper rim wire 5 and a lower rim wire 6, the side edge ropes being optional.
  • the edge cables 5, 6 can be fractional and modular or, on the contrary, run over the entire length of the barrier 1.
  • the net 4 can for example be a cable net or an underwater net.
  • An anti submarine net, consisting of the assembly of monotoron cable rings, has a very high resistance and a capacity for deformation and significant energy dissipation.
  • the thread 4 in the unconstrained state, that is to say in the absence of block impact, the thread 4 is fixed substantially tensioned between the supports 3 and extends substantially transversely to the slope line X , that is to say in a plane (Y, Z).
  • the barrier 1 thus has a repetitive modular structure, with module widths, that is to say a distance between two adjacent supports 3, which can be of the order of 10 to 20 m.
  • the barrier 1 may comprise a lateral guying system (not shown), namely a left lateral guying system and a right lateral guying system respectively for the support 3 located at the left-hand end of the barrier and for the support 3 located at the right-hand end of the barrier.
  • the other supports do not have such lateral guying systems.
  • Each lateral guying system makes it possible to connect the support 3 to a corresponding lateral anchorage. The dimension and the technique of realization of the anchors depend on the nature of the ground 2.
  • the support 3 comprises a mast 10 which comprises a foot 11, to which the lower rim cables 6 are attached, and a head 12, to which the upper rim cables 5 are attached.
  • the mast 10 may be formed for the essential of a metal tube.
  • the foot 11 of the mast 10 is arranged to be able to rest on the ground 2.
  • it may comprise a base 13 adapted to allow the support 3 to rest substantially stable on the ground 2 before the fixing of the support 3 on the 2.
  • the base 13 is formed of a stretch of metal tube extending transversely on either side of the mast 10, over a length sufficient to give this self-stability to the support 3.
  • the lower part of the mast 10 can be inserted and fixed in an orifice formed on the upper part of the base 13. Provision can be made for the lower rim cable (s) 6 to pass through the base (13) to be fixed to the lower part of the mast (10), as shown in FIG. figure 5 .
  • the support 3 further comprises a lower holding member 14 which, in the illustrated embodiment, is in the form of a rigid bar, typically metallic. It can be a crenelated and screwable HA bar (high adhesion), for example identical to those used for anchors (GEWI® type bars). These bars have the advantage of being very efficient and economical because very widely used in these applications, and to allow a micrometric adjustment of their length.
  • a rigid bar typically metallic. It can be a crenelated and screwable HA bar (high adhesion), for example identical to those used for anchors (GEWI® type bars). These bars have the advantage of being very efficient and economical because very widely used in these applications, and to allow a micrometric adjustment of their length.
  • the lower holding member 14 is disposed substantially perpendicular to the mast 10. It has an upstream end 15 intended to be fixed to the ground 2 and can extend, downstream, beyond the foot 11 of the mast 10, until at its downstream end 16.
  • the downstream end portion of the lower holding member 14 is mounted on the foot 11 of the mast 10. This downstream end portion can pass through the foot 11 with a sliding possibility which is however blocked as explained below.
  • the lower holding member 14 serves to limit (that is to say to block or control, according to different embodiments) the sliding of the foot 11 of the mast 10 on the ground 2.
  • the two stops 17, 18 are disposed on either side of the base 13 and substantially in contact therewith.
  • the support 3 also comprises an upper holding member 20 which is rigid.
  • the upper holding member 20 is in the form of a rigid bar, typically metallic. It may be a crenellated bar and screw as discussed above.
  • the upper holding member 20 is disposed obliquely with respect to the mast 10. It is inclined relative to the mast 10 by an angle ⁇ which can be between 20 ° and 40 °, for example of the order of 30 °.
  • the upper holding element 20 has an upstream end 21 intended to be fixed to the ground 2 and a downstream end 22, the downstream end portion of the upper holding element 20 being mounted on the head 12 of the mast 10.
  • the upper holding element 20 plays the same role as an upstream stay but its rigidity - in particular its resistance to buckling - is sufficient to support a moderate compression that can be generated by a small support on the net 4, by the self weight of the latter or by a rebound effect. As a result, the support 3 is devoid of downstream stay.
  • the upper holding member 20 extends downstream beyond the head 12 of the mast 10. It is mounted on the head 12 of the mast 10 by a connecting means, for example in the form of a clevis 23. This is articulated on the head 12 of the mast 10, about a substantially transverse axis 24, and on the other hand slidably mounted around the upstream end 21 of the element upper support 20, along the axis of the latter.
  • the two stops 25, 26 are disposed on either side of the yoke 23 and substantially in contact therewith.
  • the upstream end 15 of the lower holding member 14 and the upstream end 21 of the upper holding member 20 are fixed to the same connecting element 28 intended to be anchored in the ground 2.
  • This connecting element 28 may be in the form of a ring 29 axis transverse.
  • Fixing the holding elements 14, 20 to the ring 28 can be done via a nut screwed to the upstream end of these holding elements, when they consist of a crenelated bar and screwable.
  • a counter-nut (not shown) can also be placed on each of the holding elements 14, 20, close to the ring 28. The function of these lock-nuts is to avoid, during the rebound effect which follows an impact, that the holding element concerned does not move upstream by a few centimeters.
  • the ring 28 is anchored in the ground, for example by means of a threaded rod 30 fixed to the ring 28 by means of a nut and sealed in the ground 2 to a sufficient depth (for example of the order of 3 to 4 m).
  • a sufficient depth for example of the order of 3 to 4 m.
  • Other anchoring solutions can be implemented depending on the nature of the terrain 2.
  • the support 3 is designed to be pre-assembled in easy terrain before being cranked or heliborted on its anchor point.
  • the main components of the support 3 - namely the mast 10 and the lower holding members 14 and upper 20 - do not move relative to each other, in particular because of the limitation means to the downstream and upstream.
  • the upstream stop 18 is especially useful during such a displacement prior to the installation of the support 3 in the field. Indeed, in operation, the stop 18 is generally not useful in practice because the foot 11 of the mast 10 does not tend to move upstream during a solicitation.
  • the shape of the base 13 allows the support 3 to remain erected before the laying of the side ropes 5, 6 and side stays.
  • the mast 10 In the mounted position of the support 3 on the ground 2, the mast 10 is substantially orthogonal to the ground 2, the lower holding member 14 substantially follows the slope line, and the upper holding member 20 is inclined at an angle ⁇ , relative to the normal ground, from its upstream end 21 towards its downstream end 22.
  • the support 3 extends substantially in a plane (Y, Z).
  • the threads 4 are located substantially in the same plane as the poles 10.
  • the support 3 may comprise braking devices comprising one or more elastic, plastic or elastoplastic elements allowing movement and / or rotation of the mast 10. This is in particular used for rockfall applications, where the barrier 1 is subject to dynamic demands.
  • each of the braking devices 31, 32 comprises a sleeve surrounding the bar constituting the lower holding member 14 or upper 20.
  • the lower sleeve 31 is disposed between the foot 11 of the mast 10 and the downstream end 16 of the lower holding member 14, and more precisely between the downstream washer 17 and an end stop 33 formed of a washer and a nut disposed in the vicinity of the downstream end 16 of the lower holding element 14.
  • the upper sleeve 32 is disposed between the head 12 of the mast 10 and the downstream end 22 of the upper holding member 20, and more precisely between the downstream washer 25 and an end stop 34 formed by a washer. and a nut disposed in the vicinity of the downstream end 22 of the upper holding member 20.
  • the sleeves 31, 32 may consist of a metal tube, for example aluminum, able to deform "accordion". This is a very simple and economical way of dissipating energy.
  • the support 3 is fixed to the ground 2 only at the upstream ends 15, 21 of the lower holding members 14 and upper 20, here by the threaded rod 30.
  • the mast 10, whose foot 11 rests on the ground 2 without being there fixed, is retained in position by the lower holding members 14 and upper 20 fixed to the threaded rod 30, which prevent the mast 10 from sliding in the slope, in the absence of stress.
  • the downstream abutment 17 is supported on the first braking device 31, itself bearing on the end stop 33. These elements form first limiting means for limiting the movement of the foot 11 of the mast 10 downstream. in relation to the terrain 2.
  • the downstream abutment 25 bears against the second braking device 32, itself bearing on the end stop 34. These elements form second limiting means for limiting the movement of the head 12 of the mast 10 towards the end stop. downstream from the field 2.
  • the mast 10 of the support 3 is subjected to a force tending to drag it downstream. If the amplitude of the bias is sufficient, the mast 10 will indeed move downstream, this movement being braked.
  • the sleeve 31 will be compressed between the stop 17 - sliding downstream on the lower holding member 14 due to the thrust exerted by the mast 10 - and the end stop 33.
  • the sleeve 32 will be compressed between the stop 25 - sliding downstream on the upper holding member 20 due to the thrust exerted by the mast 10 via the yoke 23 - and the end stop 34.
  • the sleeves 31, 32 dissipate the kinetic energy of the stone running down the slope and thus slow down the movement of the mast 10 downstream relative to the terrain 2, and more precisely with respect to the lower holding members 14 and upper 20.
  • the first and second braking devices 31, 32 are arranged so that this braking movement of the mast 10 downstream is substantially in a translation parallel to the terrain 2, without changing the inclination of the mast relative to 2. This makes it possible to maintain the residual height of the barrier 1 after impact. A significant residual height after impact is particularly important to meet the requirements of the European ETAG 27 standard for so-called service solicitation.
  • the races of the braking devices 31, 32 must be different, and their settings.
  • the stroke of the upper braking device 32 is equal to 2/3 of that of the lower braking device 31 and, to obtain the same energy dissipation, the calibration of the upper braking device 32 must be equal to 3/2 of the calibration of the lower braking device 31.
  • the barrier 1 according to the invention is devoid of energy dissipators - or braking device - arranged on the edge cables, which have the effect of lengthening these edge cables and therefore considerably increase their boom and reduce the residual height after impact.
  • the guided and braked translation of the mast 10 downstream, without modifying its inclination with respect to the terrain 2, implies a slight angle variation between the mast 10 and the upper holding member 20, which may, for example, be order of 5 to 7 °.
  • This small amplitude pivoting of the mast 10 relative to the upper holding member 20 is allowed by the yoke 23 hinged about the axis 24.
  • Other connecting means allowing the mast 10 to pivot relative to the element
  • the upper support members 20 around a substantially transverse axis can be envisaged.
  • the capacity of deformation and dissipation of energy of the barrier 1 thus results from the elasto-plastic deformation of the thread 4 and the braking devices 31, 32.
  • the mast 10 may be subjected to a bias tending to tilt upstream. This can occur in the event of a direct impact on the upper holding member 20, or following a rebound of the block intercepted by the barrier 1. This can also occur when the barrier 1 is implanted on slopes with very little support, for example at the foot of the slope.
  • the degree of freedom in pivoting of the head 12 of the mast 10 relative to the upper holding member 20 is no longer necessary, and the clevis 23 is articulated can be replaced by a connecting piece 35 fixed at a time to the upper holding member 20 and the head 12 of the mast 10 and allowing no relative degree of freedom.
  • Such a barrier 1, including fixed supports 3 even in the event of stress, can be used for small stone barriers, or for avalanche barriers, which oppose a static thrust.
  • the downstream abutment 17, which may comprise a washer and a nut, forms first limiting means to prevent movement of the foot 11 of the mast 10 downstream relative to the terrain 2, while the upstream stop 18 prevents the foot from moving. 11 of the mast 10 upstream.
  • the invention provides a decisive improvement to the prior art, in that it makes it possible to reconcile the advantages of a single-anchor, self-stable and pre-assembled support with a very low component manufacturing cost by removing downstream shrouds, due to the rigidity of the upper holding member which provides the upstream seat stay function.
  • the invention makes it possible to integrate braking devices into the support which do not generate any residual height loss of the barrier.

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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Claims (11)

  1. Stütze, die dazu bestimmt ist, auf einem Gelände (2) zur Herstellung einer Schutzbarriere (1) befestigt zu werden, die imstande ist, einen im Verhältnis zum besagten Gelände (2) in Bewegung befindlichen Gegenstand zurückzuhalten, wobei die Stütze (3) Folgendes umfasst:
    - einen Mast (10), der einen Fuß (11) umfasst, der imstande ist, auf dem Gelände (2) aufzuliegen, und einen Kopf (12), und der in der montierten Position der Stütze (3) auf dem Gelände (2) im Wesentlichen senkrecht zum Gelände (2) steht;
    - ein unteres Halteelement (14) im Wesentlichen senkrecht zum Mast (10), das ein oberes Ende (15) aufweist, das dazu bestimmt ist, am Gelände (2) befestigt zu werden, und ein unteres Ende, das am Fuß (11) des Mastes (10) montiert ist;
    - erste Begrenzungsmittel (17, 31, 33) zum Begrenzen der Bewegung des Fußes (11) des Mastes (10) abwärts im Verhältnis zum Gelände (2) in der montierten Position;
    - ein oberes starres Halteelement (20), das im Verhältnis zum Mast (10) schräg angeordnet ist, ein oberes Ende (21) aufweist, das dazu bestimmt ist, am Gelände (2) befestigt zu werden, und einen unteren Endabschnitt, der am Kopf (12) des Mastes (10) montiert ist;
    - zweite Begrenzungsmittel (25, 26, 32, 24) zum Begrenzen der Bewegung des Kopfes (12) des Mastes (10) abwärts und aufwärts im Verhältnis zum Gelände (2) in der montierten Position;
    dadurch gekennzeichnet, dass die ersten Begrenzungsmittel und die zweiten Begrenzungsmittel jeweils eine erste und eine zweite Bremsvorrichtung (31, 32) umfassen, wobei die Bremsvorrichtungen gestaltet sind, um die Bewegung des Mastes (10) abwärts in der Ruhestellung zu verhindern, und um die Bewegung des Mastes (10) abwärts unter der Wirkung einer Belastung, die in der montierten Position auf den Mast (10) ausgeübt wird, wobei die erste und die zweite Bremsvorrichtung (31, 32) verschieden sind, und angeordnet sind, damit die gebremste Bewegung des Mastes (10) abwärts in der montierten Position und unter der Wirkung einer Belastung, die auf den Mast (10) ausgeübt wird, im Wesentlichen entsprechend einer Translation parallel zum Gelände (2), ohne Änderung der Neigung des Mastes (10) im Verhältnis zum Gelände (2) erfolgt.
  2. Stütze nach Anspruch 1, dadurch gekennzeichnet, dass die erste Bremsvorrichtung (31) mit dem Fuß (11) des Mastes (10) und dem unteren Halteelement (14) zusammenwirkt, und/oder dadurch, dass die zweite Bremsvorrichtung (32) mit dem Kopf (12) des Mastes (10) und dem oberen Halteelement (20) zusammenwirkt.
  3. Stütze nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sie ein Verbindungsmittel (23) zwischen dem Kopf (12) des Mastes (10) und dem oberen Halteelement (20) umfasst, wobei das besagte Verbindungsmittel (23) gestaltet ist, um den Schwenk des Mastes (10) im Verhältnis zum oberen Halteelement (20) um eine im Wesentlichen querlaufende Achse (24) zu ermöglichen, wenn sich der Mast (10) in der montierten Position im Verhältnis zum Gelände (2) abwärts bewegt.
  4. Stütze nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass sich das untere (14) und das obere (20) Halteelement abwärts über den Fuß (11), beziehungsweise den Kopf (12) des Mastes (10) hinweg erstrecken, und dadurch, dass:
    - die erste Bremsvorrichtung (31) zwischen dem Fuß (11) des Mastes (10) und dem unteren Ende (16) des unteren Halteelements (14) angeordnet ist;
    - und/oder die zweite Bremsvorrichtung (32) zwischen dem Kopf (12) des Mastes (10) oder dem Verbindungsmittel (23) und dem unteren Ende (22) des oberen Halteelements (20) angeordnet ist.
  5. Stütze nach Anspruch 4, dadurch gekennzeichnet, dass sich das untere Halteelement (14) und das obere Halteelement (20) in Form einer starren Stange darstellen und dadurch, dass jede der Bremsvorrichtungen (31, 32) eine Muffe umfasst, welche die besagte Stange umgibt und zwischen dem Fuß (11), beziehungsweise dem Kopf (12) des Mastes (10) und dem unteren Ende (16, 22) der Stange angeordnet ist, wobei die Muffe gestaltet ist, um zwischen dem Mast (10) und dem unteren Ende (16, 22) der Stange komprimiert werden zu können, um die Bewegung des Mastes (10) abwärts im Verhältnis zum unteren (14) und zum oberen (20) Halteelement zu bremsen.
  6. Stütze nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das untere Halteelement (14) starr ist.
  7. Stütze nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass sich das untere Halteelement (14) und/oder das obere Halteelement (20) in Form einer starren Stange darstellt (-en).
  8. Stütze nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das obere Ende (15) des unteren Halteelements (14) und das obere Ende (21) des oberen Halteelements (20) an einem selben Anschlusselement (28) befestigt sind, das dazu bestimmt ist, im Gelände (2) verankert zu werden.
  9. Stütze nach Anspruch 8, dadurch gekennzeichnet, dass das Anschlusselement (28) einen Ring mit querlaufender Achse (29) umfasst.
  10. Stütze nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der Fuß (11) des Mastes (10) eine Grundplatte (13) umfasst, die imstande ist, es der Stütze (3) zu ermöglichen, vor der Befestigung der Stütze (3) auf dem Gelände (2) im Wesentlichen stabil auf dem Gelände (2) aufzuliegen.
  11. Schutzbarriere, die dazu bestimmt ist, auf einem Gelände (2) montiert zu werden, um einen im Verhältnis zum besagten Gelände (2) in Bewegung befindlichen Gegenstand zurückzuhalten, wobei die Barriere (1) in der montierten Position Folgendes umfasst:
    - zumindest zwei Stützen (3), die am Gelände (2) befestigt sind, wobei zumindest eine der Stützen (3) einem der vorhergehenden Ansprüche entspricht;
    - ein Netz (4), das im unbelasteten Zustand im Wesentlichen gespannt zwischen jedem Paar von zwei benachbarten Stützen (3) befestigt ist, um sich im Wesentlichen quer zur Flugbahn des Gegenstandes zu erstrecken.
EP14722257.4A 2013-04-04 2014-04-02 Träger und schutzbarriere zum halten eines sich bewegenden objektes Not-in-force EP2981651B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1353036A FR3004199B1 (fr) 2013-04-04 2013-04-04 Support et barriere de protection pour retenir un objet en mouvement
PCT/FR2014/050785 WO2014162098A1 (fr) 2013-04-04 2014-04-02 Support et barrière de protection pour retenir un objet en mouvement

Publications (2)

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EP2981651A1 EP2981651A1 (de) 2016-02-10
EP2981651B1 true EP2981651B1 (de) 2017-03-08

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EP14722257.4A Not-in-force EP2981651B1 (de) 2013-04-04 2014-04-02 Träger und schutzbarriere zum halten eines sich bewegenden objektes

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EP (1) EP2981651B1 (de)
FR (1) FR3004199B1 (de)
WO (1) WO2014162098A1 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1108583A (fr) * 1953-10-01 1956-01-16 Ind De L Aluminium Sa Barrière de protection contre les avalanches
FR2816335B1 (fr) * 2000-11-09 2003-08-15 Mecanroc Barriere de protection, notamment pour site montagneux
DE502004011065D1 (de) * 2003-07-24 2010-06-02 Trumer Schutzbauten Gesmbh Unterstützende Energieabsorbierungsstruktur
FR2978462B1 (fr) * 2011-07-28 2013-08-02 Mecanroc Barriere de protection contre des blocs devalant un terrain en pente

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
FR3004199A1 (fr) 2014-10-10
EP2981651A1 (de) 2016-02-10
WO2014162098A1 (fr) 2014-10-09
FR3004199B1 (fr) 2015-08-21

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