EP3277925B1 - Konstruktionselement zur erzeugung eines tunnels, tunnel mit solch einem element und verfahren zur herstellung solch eines elements und solch eines tunnels - Google Patents

Konstruktionselement zur erzeugung eines tunnels, tunnel mit solch einem element und verfahren zur herstellung solch eines elements und solch eines tunnels Download PDF

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Publication number
EP3277925B1
EP3277925B1 EP16721868.4A EP16721868A EP3277925B1 EP 3277925 B1 EP3277925 B1 EP 3277925B1 EP 16721868 A EP16721868 A EP 16721868A EP 3277925 B1 EP3277925 B1 EP 3277925B1
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Prior art keywords
layer
tunnel
construction element
cavities
devices
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English (en)
French (fr)
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EP3277925A1 (de
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Jean Simon
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Constructions Mecaniques Consultants
Agence Nationale pour la Gestion des Dechets Radioactifs ANDRA
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Constructions Mecaniques Consultants
Agence Nationale pour la Gestion des Dechets Radioactifs ANDRA
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/05—Lining with building materials using compressible insertions

Definitions

  • the invention relates to the construction of tunnels, in particular underground tunnels, and the construction elements of such tunnels.
  • a cavity is, in general, dug underground, then a tunnel is formed in this cavity using voussoirs.
  • the voussoirs correspond to constituent elements of an annular section of the tunnel, once assembled together.
  • each prefabricated concrete segment comprises a layer of a compressible material, such as a polyethylene foam, glued on the outer surface of the voussoir.
  • a compressible material such as a polyethylene foam
  • the foam can be damaged during storage or transport of the voussoir, which can lead to a loss of its mechanical properties of compression and deformation.
  • the constructions described in the patent WO 2013/150191 are also considered relevant prior art.
  • An object of the invention is to overcome the drawbacks mentioned above and in particular to provide a means easy to implement and implement to dampen the convergence of a terrain exerted on a tunnel.
  • Another object of the invention is to provide a means for guaranteeing the mechanical damping properties of the convergence of a terrain of a building element during its storage or transport.
  • a construction element for the realization of a tunnel comprising a first incompressible layer of concrete and a second compressible layer secured to the first layer to form a monobloc prefabricated construction element configured to be integrated in a section of the tunnel.
  • the second layer comprises a material comprising aggregates aggregated by a binder, and cavities embedded within the material.
  • a prefabricated building element adapted to make a section of a tunnel.
  • Such a monoblock construction element is easy to handle and its manufacture can be controlled so as to obtain a homogeneous tunnel section, in order to control the behavior of the tunnel facing the convergence of the terrain.
  • the cavities formed in the material determine the compressibility of the second layer. In other words, the cavities allow the ground to converge and unload the stresses exerted on the first layer.
  • the cavities being embedded in the material, they are protected during storage of the construction element so that the construction element retains its compressibility properties when used in a tunnel section.
  • the binder may comprise a cement.
  • the aggregation of the aggregates with cement makes it possible to obtain a mortar as material of the second layer.
  • the mortar is particularly adapted to become solid with the first layer of concrete, while allowing the ground to converge and discharge the stresses exerted on the first layer. This avoids using an adhesive film to secure the two layers of the prefabricated monobloc element.
  • the mortar is impact resistant and protects the cavities of the second layer during transport of the construction element, while retaining the mechanical properties of compressibility and deformation of the building element.
  • the second layer may comprise a plurality of devices embedded in the material, each device having a solid body delimiting at least one closed free space.
  • the solid body of the devices can be made of ceramic or plastic.
  • the second layer may comprise a plurality of parts embedded in the material, each part having a porous solid body provided with several through holes and several closed free spaces.
  • the second layer may also comprise a compound generating a gas within the material forming the cavities.
  • a tunnel located inside a cavity dug in a field, at least one section of the tunnel being made from at least one two-layer construction element as defined above. before.
  • the second layer is produced from a material comprising aggregates aggregated by a binder, and cavities embedded in the material.
  • devices can be drowned, each having a solid body delimiting at least one closed free space.
  • the cavities can also be made from an injection of a gas into the material.
  • the present invention provides particular advantages in the field of tunnels, it is also applicable to any system which is performed in an underground cavity and which is configured to withstand the convergence of terrain, for example containers or tanks partially or completely buried.
  • a tunnel 1 made in a cavity 2 dug in a terrain 3, in other words an underground tunnel.
  • the tunnel 1 can be open and have an inverted U shape, it can also be closed and have an ovoid shape, or any other shape.
  • the tunnel 1 has a generally tubular shape.
  • the tunnel 1 comprises sections 4 located within the cavity 2. At least one section 4, and preferably each section 4, is made from construction elements 5 assembled together. At least one construction element 5 comprises a first layer 6 incompressible concrete.
  • the first layer 6 has a shape of a curved hexahedron.
  • the construction element 5 comprises a second compressible layer 7 integral with the first layer 6 to form a prefabricated building element 5 of the monoblock type, as illustrated in FIG. figure 2 .
  • the second layer 7 being secured to the first layer 6, it matches the shape of the first layer 6.
  • the construction element 5 is configured to be integrated in a section 4 of the tunnel 1.
  • the construction element 5 then forms a voussoir with compressible part 7.
  • the construction element 5 is prefabricated, that is to say that it is made before the tunnel 1 In other words, the construction element 5 is previously produced, then several construction elements 5 are assembled together so as to produce a section 4 of the tunnel 1.
  • the building element 5 incorporates before a compressible layer 7, and therefore has an integrated mechanical damping property.
  • the term monoblock element a movable element that retains its physical integrity and its mechanical properties during transport, for example when moving the element from its manufacturing area to the location of section 4 of the tunnel 1 where it is placed.
  • the building element 5 is configured to be integrated in a section 4 of the tunnel 1, and in particular in a section 4 which is in progress.
  • the second layer 7 comprises a material 11 comprising granulates aggregated by a binder, and cavities 51 to 55 embedded in the material.
  • the binder makes it possible to agglomerate the aggregates to obtain a compact material 11.
  • the compact material 11 makes it possible, in particular, to provide properties of mechanical strengths to the second layer 7.
  • the cavities 51 to 55 make it possible, in turn, to make the second layer 7 compressible, that is to say that the thickness E of the second layer 7 can decrease during the convergence of the terrain 3 .
  • the terrain 3 exerts an initial convergence pressure on the tunnel 1. Due to the movements of the terrain 3, it will tend to converge towards the interior of the cavity 2. This convergence of the terrain 3 will increase the pressure exerted on the second layer 7. Under the effect of this increase in pressure, the material 11 will take the place of the cavities 51 to 55, and the second layer 7 will deform. Thus, the deformation of the second compressible layer 7 will allow a progressive approximation of the ground 3 towards the interior of the tunnel 1, until the ground 3 occupies a state of equilibrium. In the equilibrium state, the convergence pressure is lower than the initial pressure.
  • the second compressible layer 7 thus makes it possible to damp the convergence of the ground 3 to a state of equilibrium for which the convergence pressure is supported by the construction element 5, that is to say that the first layer incompressible 6 does not deform under the pressure of convergence at equilibrium.
  • the thickness E of the second layer 7 is chosen as a function of the damping of the convergence of the terrain 3 that it is desired to obtain.
  • the thickness E is chosen as a function of the displacement of the ground 3, with respect to its initial position, which can be supported by the construction element 5.
  • the ground 3 In the initial position, the ground 3 is at an initial distance F, as illustrated on the figure 1 of the external surface of the second layer 7.
  • the initial distance F corresponds to the thickness of the free space F.
  • the thickness E also depends on the compressibility of the second layer 7.
  • aggregating the aggregates with a binder makes it possible to obtain a solid material 11 that can provide a resistance force that is opposed to the stresses exerted by the ground 3 during its convergence.
  • the material 11 is also adapted to protect the cavities 51 to 55, during possible shocks during the transport of the construction element 5 to integrate it in a section 4 of the tunnel 1, and to maintain the compressibility properties of the second layer 7.
  • Aggregates may be sand or gravel, or a mixture of both.
  • the binder allows aggregation aggregates, it can be cement, plaster, lime, bitumen, clay, or a plastic such as a synthetic resin.
  • the material 11 may comprise one or more adjuvants to give properties specific to the material 11.
  • a mortar is used as material 11 of the second layer 7, from a mixture of fine aggregates, for example sand, cement and water.
  • the fine aggregates have a diameter of less than 4 mm to improve the deformation of the second layer 7.
  • the water-mixed cement forms a paste which hardens gradually following chemical reactions between the cement and the water.
  • the mortar is particularly suitable because it easily adheres to the first incompressible layer 6 of concrete, which facilitates the realization of the construction element 5. Indeed, it is not necessary to use a specific adhesive to secure the two layers 6, 7 of the element 5.
  • the mortar comprises an air-entraining admixture for causing the formation of air microbubbles in the material 11.
  • lignosulphonates or resin abietates can be used. as an air entraining adjuvant.
  • the first incompressible layer 6 is made of concrete.
  • Concrete means a material obtained from a mixture of thick aggregates, that is to say with a diameter of between 4 and 50 mm, such as gravel, of fine aggregates whose diameter is less than 4 mm like sand, cement, and water.
  • the concrete of the first layer 6 is devoid of cavities, it is incompressible, that is to say, it does not deform under a constraint exerted by the convergence of the ground 3.
  • the concrete is preferably armed.
  • Reinforced concrete comprises metal rods for reinforcement of the first layer 6.
  • the second layer 7 comprises a plurality of devices 8 each having a solid body 9 delimiting at least one closed free space 10, as illustrated in FIGS. Figures 9 to 11 .
  • the devices 8 are embedded in the material 11 of the second layer 7, in other words the second layer 7 has no interstices between the devices 8.
  • each closed free space 10 forms a cavity 51 to 55 embedded in the material 11.
  • FIGS. Figures 9 to 11 Such devices 8 are also illustrated in FIGS. Figures 9 to 11 .
  • FIGS. Figures 9 to 11 We have shown figure 3 , an initial state in which the ground 3 is in contact with the second layer 7 of the building elements 5 before convergence.
  • the bodies of the devices 8 have an initial shape and the second layer 7 has an initial thickness Gi.
  • the second compressible layer 7 deforms and allows a displacement of the ground 3 towards the center of the tunnel 1.
  • the ground 3 can break or deform the devices 8, until reaching a state of equilibrium in which the ground 3 is at a equilibrium distance Ge of the outer surface of the first layer 6, as illustrated in FIG. figure 4 .
  • the equilibrium distance Ge is smaller than the initial distance Gi.
  • the breaking strength of the devices 8 is less than the convergence pressure of the ground 3 so as to allow the crushing of the devices 8.
  • the devices 8 may comprise, all or some of them, a state in which they are broken. This makes it possible to absorb the displacements of the ground 3 without damaging the tunnel 1.
  • the solid bodies 9 of the devices 8 may deform, breaking or bending, thanks in particular to their closed free space 10, to allow the deformation of the second layer 7.
  • a compressible layer 7 having a residual volume constituted by the sum of the closed free spaces 10 of each of the devices 8, which offers a damping property of the convergence of the ground 3.
  • the devices 8 may be made of ceramic.
  • the ceramic provides good resistance while being breakable to effectively damp the convergence of the ground 3.
  • the ground 3 can converge to the interior of the tunnel 1.
  • the devices 8 can also be made in glass, or mortar which are, like the ceramic, materials that can be broken under the effect of the convergence of the ground 3.
  • the devices 8 can be made of metal or plastic.
  • the devices 8 are all substantially identical in order to obtain a second homogeneous layer 7.
  • the second layer 7 comprises parts 40 having a porous solid body provided with several through-holes and with a number of closed free spaces 10.
  • open holes open channels or orifices are understood to mean surface of the solid body of the part 40.
  • the diameter of the through holes is less than that of the aggregates of the material 11. It also means closed free spaces 10, empty spaces enclosed within the part 40.
  • the body of the parts 40 may be glass, plastic, or ceramic.
  • the pieces 40 are polystyrene balls.
  • the parts 40 are embedded in the material 11. That is to say that the second layer 7 is devoid interstices between parts 40.
  • FIG 5 It has been shown in figure 5 , an initial state in which the ground 3 is in contact with the second layer 7 of the building elements 5 before convergence.
  • the pieces 40 have an initial shape and the second layer 7 has an initial thickness Gi.
  • the second compressible layer 7 is deformed and allows a displacement of the ground 3 towards the center of the tunnel 1.
  • the ground 3 can break or deform the pieces 40, until reaching a state of equilibrium in which the ground 3 is at a equilibrium distance Ge of the outer surface of the first layer 6.
  • the equilibrium distance Ge is smaller than the initial distance Gi.
  • the breaking strength of the parts 40 is less than the convergence pressure of the ground 3 so as to allow the deformation of the parts 40.
  • the pieces 40 may comprise, all or some of them, a state in which they are broken or deformed. This makes it possible to absorb the displacements of the ground 3 without damaging the tunnel 1.
  • the cavities 51 to 55 embedded in the material 11 of the second layer 7 are obtained from an injection of a gas into the material 11.
  • a gas for example, it is possible to inject air into a mortar when it is hardening.
  • the cavities 51 to 55 can also be created by adding to the material 11 a compound generating a gas.
  • the gas generating compound reacts with the cement to produce a gassing which forms the cavities 51 to 55.
  • the gas generating compound suitable for the cement may be, for example, a powder of aluminum or zinc, or oxygen peroxide, or calcium carbide.
  • the gases that form induce swelling of the material 11 to create the cavities 51 to 55.
  • Each cavity 51 to 55 allows the material 11 to take place in the cavity 51 to 55 during the convergence of the ground 3. It is shown in FIG. figure 7 , an initial state in which the ground 3 is in contact with the second layer 7 of the building elements 5 before convergence. In the initial state, the cavities 51 to 55 occupy an initial volume within the material 11, and the second layer 7 has an initial thickness Gi. When land 3 converges, as illustrated on the figure 8 the second compressible layer 7 deforms and allows a displacement of the ground 3 towards the center of the tunnel 1. The material 11 fills the cavities 51 to 53, until reaching a state of equilibrium in which the ground 3 is at a distance of equilibrium Ge of the outer surface of the first layer 6. The equilibrium distance Ge is smaller than the initial distance Gi.
  • the compressive strength of the second layer 7 is less than the land convergence pressure so as to allow the filling of the cavities 51 to 55 of the material.
  • the references 54 and 55 show cavities that persist after the equilibrium state. In other words, the second layer 7 absorbs the movements of the terrain 3 without damaging the tunnel 1.
  • the second layer 7 can comprise different combinations between the various aforementioned elements embedded in the material 11, namely cavities 51 to 55 obtained from an injection of a gas into the material and / or devices 8 having a closed free space 10, and / or parts 40 whose body is porous.
  • the Figures 9 to 11 illustrate an embodiment of the devices 8, the body 9 defines at least one closed free space 10.
  • the devices 8 have a solid body 9 ceramic.
  • the ceramic is adapted to produce these devices 8, because it is malleable before a cooking step so as to form the closed free space 10 within the device 8, and because it becomes solid after cooking.
  • the solid body 9 of the device 8 is particularly liquid-tight, for example mortar-proof pasty before curing and hardened mortar.
  • the body 9 of the device 8 extends along a longitudinal axis A of the device 8 and has two closed ends 13, 14.
  • the closed ends 13, 14 may each have a linear shape. In a first embodiment, as illustrated in Figures 9 and 10 , the ends 13, 14 are parallel to each other.
  • the ends 13, 14 may be perpendicular to each other.
  • the body 9 of the device 8 has a cylindrical shape.
  • the term "cylinder” means a solid bounded by a cylindrical surface generated by a straight line, denoted generatrix, traversing a closed planar curve, denoted as a director, and two parallel planes intersecting the generatrices.
  • the body 9 may have a shape of a tube.
  • the device 8 may also comprise several cavities communicating with each other or not.
  • the closed cavities 10 of the devices 8 prevent them from interlocking into each other, regardless of their size and shape.
  • an open and curved parallelepiped formwork 30 is used to make a shape of a voussoir, as illustrated in FIG. figure 12 .
  • the formwork 30 is open and not curved to make tunnel sections of various shapes, for example U or ovoid.
  • metal bars in liquid concrete 31 to obtain a first incompressible layer of reinforced concrete.
  • a first template 32 is used which is placed on the surface of concrete 31 and is moved along the surface to form a curved outer surface.
  • Concrete 31 is allowed to set, either completely and in this case the concrete has cured entirely, or partially, and in this case the concrete has not completely hardened but has sufficiently hardened at the surface to maintain the curvature given by the first template 32. Then the first template 32 is removed, thereby obtaining a first layer 6 whose base and outer surface are curved, as shown in FIG. figure 14 .
  • formwork elements 33 are fixed on the edges of the formwork 30 to enhance the formwork 30 and to be able to form the second layer 7, as illustrated in FIG. figure 15 .
  • the material 11 is poured. According to one embodiment, when the material 11 is poured, the concrete of the first layer 6 has no not completely hardened.
  • the adhesion of the material to the outer surface of the first layer 6 which has not yet fully cured is promoted.
  • the material 11 is poured into the pasty state before it hardens.
  • the binder of material 11 is cement to obtain a mortar as material 11.
  • devices 8, each having a solid body 9 delimiting at least one cavity can be mixed with the material 11 in the pasty state. closed 11. It is also possible to mix the material 11 in the pasty state with parts 40 having a porous solid body. Can be mixed with the material 11 in the pasty state, a gas generating compound. It is also possible to inject a gas, using a gas injector, into the material 11 in the pasty state. Thus, a material is obtained in which cavities 51 to 55 are embedded.
  • the material 11 is then allowed to harden in order to secure the second compressible layer 7 to the first layer 6.
  • a second template 35 is used which is moved on the surface of the material 11 in order to form an outer curved surface on the second layer 7, as shown in FIG. figure 15 .
  • the material 11 is allowed to harden to make the second layer 7 integral with the first layer 6.
  • the second template 35 is removed and a prefabricated monobloc element 5 is formed surrounded by the formwork 30, shown in FIG. figure 16 .
  • the formwork 30 and the formwork elements 33 are removed to obtain the prefabricated building element 5, as shown in FIG. figure 2 .
  • a TBM 15 digs the cavity 2 in the ground 3 along the F1 direction.
  • the front of the tunnel boring machine 20 is equipped with means 21 ensuring the felling of the rock of the ground 3 and includes means for extracting the rock, not shown for purposes of simplification.
  • Part of the tunneling machine 15 ensures the implementation of the construction elements 5 as the tunneling machine 15 progresses along the F1 direction.
  • the TBM 15 comprises injection means 22 for injecting a filler 23, for example mortar or gravel, to fill the free space F delimited between the building elements 5 and the inner wall of the cavity 2, formed by the progress of the TBM 15.
  • the arrow, indicated by the reference F2 illustrates the path taken by the filling product 23 during its injection.
  • the injection of the filling product 23 makes it possible to form a filling layer to occupy the free space F between the building elements 5 and the ground 3.
  • a free space F delimited between the outer wall of the tunnel 1 and the inner wall of the cavity 2 is kept, to place the building elements 5 in order to form the section 4 of the tunnel 1. Then fill the free space F with the filling product 23.
  • the construction element which has just been described makes it possible to facilitate the construction of a tunnel while ensuring damping of the convergence of the terrain in which the tunnel is located. In addition, it offers a better control of the tunnel construction process.
  • Such a construction element reduces the thickness of a classic voussoir, which greatly reduces the amount of concrete needed to build the tunnel.
  • Such a construction element is simple to produce, easily transportable, and which guarantees the conservation of a compressible layer integral with the incompressible layer for its transport and its integration within a tunnel.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Lining And Supports For Tunnels (AREA)

Claims (12)

  1. Bauelement zur Herstellung eines Tunnels, umfassend eine erste, nicht komprimierbare Schicht (6) aus Beton und eine zweite, komprimierbare Schicht (7), die fest mit der ersten Schicht (6) verbunden ist, um ein einstückiges vorgefertigtes Bauelement zu bilden, das so beschaffen ist, dass es in einen Tunnelabschnitt eingebaut werden kann, dadurch gekennzeichnet, dass die zweite Schicht (7) ein Material (11) enthält, das Granulate umfasst, die durch ein Bindemittel aggregiert sind, sowie in das Material eingebettete Hohlräume (51 bis 55).
  2. Bauelement nach Anspruch 1, bei dem das Bindemittel einen Zement umfasst.
  3. Bauelement nach Anspruch 1 oder 2, bei dem die zweite Schicht (7) eine Mehrzahl von in das Material (11) eingebetteten Vorrichtungen (8) umfasst, wobei jede Vorrichtung (8) einen Festkörper (9) aufweist, der mindestens einen geschlossenen Freiraum (10) begrenzt.
  4. Bauelement nach Anspruch 3, bei dem der Festkörper (9) der Vorrichtungen (8) aus Keramik besteht.
  5. Bauelement nach Anspruch 3, bei dem der Festkörper (9) der Vorrichtungen (8) aus Kunststoff besteht.
  6. Bauelement nach einem der Ansprüche 1 bis 5, bei dem die zweite Schicht (7) eine Mehrzahl von in das Material (11) eingebetteten Teilen (40) umfasst, wobei jedes Teil (40) einen porösen Festkörper aufweist, der mit mehreren Durchgangslöchern und mehreren geschlossenen Freiräumen (10) versehen ist.
  7. Bauelement nach einem der Ansprüche 1 bis 5, bei dem die zweite Schicht (7) eine Verbindung enthält, die innerhalb des die Hohlräume (51 bis 55) bildenden Materials (11) ein Gas erzeugt.
  8. Tunnel, der sich in einer in einem Gelände (3) geschaffenen Aushöhlung (2) befindet, wobei mindestens ein Abschnitt des Tunnels mit Hilfe mindestens eines zweischichtigen Bauelements (6, 7) nach einem der Ansprüche 1 bis 7 hergestellt ist.
  9. Verfahren zur Herstellung eines Bauelements zur Herstellung eines Tunnels, das folgende Schritte umfasst:
    - Herstellen einer ersten, nicht komprimierbaren Schicht (6) aus Beton; und
    - Herstellen einer zweiten, komprimierbaren Schicht (7), die fest mit der ersten Schicht (6) verbunden ist und so ein einstückiges vorgefertigtes Bauelement bildet, das so beschaffen ist, dass es in einen Tunnelabschnitt eingebaut werden kann;
    dadurch gekennzeichnet, dass die zweite Schicht (7) aus einem Material (11) hergestellt wird, das Granulate umfasst, die durch ein Bindemittel aggregiert sind, sowie in das Material (11) eingebettete Hohlräume (51 bis 55).
  10. Verfahren nach Anspruch 9, bei dem in das Material (11) Vorrichtungen (8) eingebettet werden, die jeweils einen Festkörper (9) aufweisen, der mindestens einen geschlossenen Freiraum (10) begrenzt.
  11. Verfahren nach Anspruch 9, bei dem durch Einspritzen eines Gases in das Material (11) Hohlräume (51 bis 55) erzeugt werden.
  12. Verfahren zur Herstellung eines Tunnels, das folgende Schritte umfasst:
    - Herstellen einer Aushöhlung (2) in einem Gelände (3) mittels einer Tunnelbohrmaschine; und
    - Bilden von Abschnitten des Tunnels, die sich innerhalb der Aushöhlung (2) befinden, wobei mit zunehmendem Vorrücken der Tunnelbohrmaschine mindestens ein Abschnitt aus mindestens einem zweischichtigen Bauelement (6, 7) nach einem der Ansprüche 1 bis 7 hergestellt wird.
EP16721868.4A 2015-04-03 2016-04-04 Konstruktionselement zur erzeugung eines tunnels, tunnel mit solch einem element und verfahren zur herstellung solch eines elements und solch eines tunnels Active EP3277925B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1552934A FR3034451B1 (fr) 2015-04-03 2015-04-03 Element de construction pour la realisation d'un tunnel, tunnel comprenant un tel element et procedes de fabrication d'un tel element et d'un tel tunnel
PCT/FR2016/050764 WO2016156763A1 (fr) 2015-04-03 2016-04-04 Élément de construction pour la réalisation d'un tunnel, tunnel comprenant un tel élément et procédés de fabrication d'un tel élément et d'un tel tunnel

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EP3277925A1 EP3277925A1 (de) 2018-02-07
EP3277925B1 true EP3277925B1 (de) 2019-06-05

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US (1) US10519772B2 (de)
EP (1) EP3277925B1 (de)
CN (1) CN108076650B (de)
AU (1) AU2016239986B2 (de)
CA (1) CA2981557C (de)
FR (1) FR3034451B1 (de)
WO (1) WO2016156763A1 (de)

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FR3091892B1 (fr) 2019-01-18 2021-01-22 Agence Nat Pour La Gestion Des Dechets Radioactifs Ensemble de construction pour la realisation d’un voussoir prefabrique bicouche apte a etre assemble sur site et procede de realisation d’un tel voussoir
FR3101650B1 (fr) 2019-10-07 2021-10-01 Agence Nat Pour La Gestion Des Dechets Radioactifs Andra Bloc de construction compressible a vide préfabriqué, pouvant s’integrer dans les revetements de galeries par methodes traditionnelles ou par methode au tunnelier

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EP3277925A1 (de) 2018-02-07
CN108076650A (zh) 2018-05-25
WO2016156763A1 (fr) 2016-10-06
FR3034451A1 (fr) 2016-10-07
US10519772B2 (en) 2019-12-31
CN108076650B (zh) 2021-06-01
AU2016239986A1 (en) 2017-10-26
AU2016239986B2 (en) 2021-04-01
CA2981557A1 (en) 2016-10-06
FR3034451B1 (fr) 2017-05-05
US20180163540A1 (en) 2018-06-14
CA2981557C (en) 2023-08-22

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