• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:NL2005593A
    申请号:NL2005593
    申请日:2010-10-28
    公开日:2011-05-02
    发明作者:Gregor Jarosch；Hans-Georg Mueller
    申请人:Berding Beton Gmbh；
    IPC主号:
    专利说明:

    TUNNEL RING SEGMENT WITH POLYMER CONCRETE LAYER Description
    The present invention relates to a tunnel ring segment ("Tübbing") of concrete for covering a tunnel, in particular of a tunnel for the transport of aggressive liquids, according to the preamble of independent claim 1.
    In mechanical tunnel construction with shield propulsion technology, pre-fabricated concrete elements for the inner shells are often reinforced with steel. These prefabricated concrete elements, referred to as “Tübbing” (tunnel ring segment) in technical jargon, are prefabricated in prefab element concrete factories, temporarily stored until the required concrete strength is reached and then transferred to the tunnel tubes for installation, depending on requirements. There they are lifted by a tunnel ring segment moving device, the so-called "erector", to protect the shield of the tunnel boring machine and assemble it into a tunnel ring. After the tunnel drill has been propelled by hydraulic presses against the last built-in tunnel ring segment, a new tunnel ring is installed to protect the shield. In this way the machine works "tunnel ring for tunnel ring" through the bottom, the ring gap remaining between tunnel expansion (tunnel ring) and bottom being continuously filled with mortar, to prevent subsidence, for example.
    Not only traditional traffic tunnels, but in the presence of special geological conditions also so-called supply and discharge tunnels for households, companies or industry, which in particular in the form of large-diameter manifolds are used for the central transport of waste water or fresh water or as a cable tunnel for receiving high-voltage lines, are manufactured according to the segment construction method described above in the tunnel ring segment expansion method. In all these areas of application, however, whether this is due to the strong aggressiveness of the partially environmentally hazardous waste water, to ensure impeccable hygienic drinking water quality, or to prevent malfunctions due to earth humidity penetrating into the electrolytes, increased demands placed on the density of the tunnel ring segment lining of the tunnel and thus on the lining.
    For this reason, up to now, in tunnel expansion, a separate second operating step was usually required for sealingly sealing the concave arched interior surfaces of the tunnel ring segments facing the interior of the tunnel. For waste water-carrying drain tunnels, for example, the completed tunnel still had to be regularly covered with a watertight and corrosion-resistant inliner made of fiberglass-reinforced plastic or another synthetic material, which was subsequently filled with a plastic mass or in-situ concrete and added as a new inner wall in the wastewater tunnel remained. The special manufacture of such an additional inner shell at the tunnel construction site according to the inliner method is not only very expensive, but also considerably lengthens the total construction time.
    To avoid this two-shell construction, it is admittedly known from the state of the art to cast tunnel ring segments in specially designed formwork directly with integrated, inner or outer cladding in concrete. For example, WO 2005/024183 describes a concrete element for covering a tunnel, the inner surface of which is covered by a protective shell made of fiberglass-reinforced plastic or polyethylene, with anchoring feet, in turn, releasing from this protective shell which, when fabricating the concrete element, in a corresponding formwork be poured into the concrete. Although this shell is resistant to chemical attack, it has the disadvantage that damage to the concrete body first remains uncovered during overhaul work, since the shell covers cracks or other damage. A further disadvantage consists of the difficulty of accurately guiding the scale around the end-sides of the tunnel ring segments, in order to ensure effective protection there too.
    It is therefore the object of the invention, which will be explained in more detail below, to propose a tunnel tunnel segment which is favorable and easy to manufacture, which guarantees the absolute density of the tunnel in a sustainable manner, particularly when flowing through municipal or industrial wastewater. damage to the tunnel ring body can be recognized as early as possible.
    This objective is achieved by a tunnel ring segment which is provided with a polymer concrete layer on its outer and / or inner surface. This polymer concrete layer seals the tunnel ring segment or the tunnel lining formed from such tunnel ring segments and, for example, in the case of a discharge tunnel for the transport of aggressive liquids such as waste water, sludge, vulture, etc., prevents the highly corrosive components present in such polluting liquids or outgassing therefrom , such as acids or alkalis, attack and dissolve the tunnel ring segment. Leakage caused by the tunnel as a result could cause serious environmental damage during the flow of substances that threaten groundwater and, on the other hand, necessitated an expensive subsequent remediation to restore the density of the tunnel, for example, a complex inliner remediation.
    In the case of waste water-carrying drain tunnels, the protective layer made of polymer concrete is low-pore and, in contrast to normal concrete, has an impermeable and capillary-free structure. This dense structure of the polymer concrete layer with a liquid penetration depth of approximately zero makes it resistant to most chemical liquids and therefore an ideal surface sealing material. Polymer concrete can advantageously be poured and shaped such as "normal" concrete mixtures, so that the tunnel ring segment according to the invention can be prefabricated with the polymer concrete layer, which reduces the complexity and therefore the cost of manufacturing a lining in tunnel construction compared to solutions , in which a sprayed concrete layer, foils or other inliner systems for sealing have to be applied or introduced afterwards in the completed tunnel is considerably reduced. In addition to its excellent chemical resistance, polymer concrete also has excellent mechanical properties, such as a clearly higher compressive, bending tensile and splitting strength compared to normal concrete, as a result of which mechanical damage to the polymer concrete layer during tunnel operation due to wear, aging or heat-cold warping are excluded. The relatively small E-module of the polymer concrete also prevents stress peaks due to force displacement that would otherwise arise as a result of the high pressing forces during shield propulsion.
    Since damage to the tunnel ring segment such as, for example, cracks also continues through the polymer concrete to the inside of the tunnel ring segment, revision from within the necessity of remediation measures can be recognized at a very early time and the damage can be prevented from deteriorating.
    A tunnel ring segment has a ring segment-like structure with a concave arched inner surface that faces the interior of the tunnel in the installation state and an opposite, convex arched outer surface that faces the surrounding earth in the installation state. These two planes are connected laterally via four further planes, two longitudinal planes which, in the installation state, abut the corresponding longitudinal planes of the adjacent tunnel ring segments of the same tunnel ring, and two end-planes which, in the installation condition, lie against the corresponding end-planes of the adjacent tunnel ring segments abutment from an adjacent tunnel ring.
    According to a preferred embodiment of the present invention, a round-shaped seal is provided on the four side faces to tightly close the impact joints of the individual tunnel ring segments in tunnel long and tunnel transverse directions. The seal can in this case be incorporated as an integrated seal in the fresh cement concrete or polymer concrete already during the manufacture of the tunnel ring segment or be subsequently applied to the side faces of the tunnel ring segment as a completed sealing profile. The seal preferably runs within a sealing groove. The seal can consist of an elastomer, for example EPDM.
    In view of a particularly high sealing effect, the polymer concrete layer can be provided on the outer and / or inner surfaces as well as on the side surfaces. As a result, a seal through the polymer concrete layer is also provided at abutments between two tunnel ring segments in the area of intermediate spaces or joints. Because, in addition to the inserted elastomer seal, the two side surfaces of the adjacent tunnel ring segments separated from each other by the joint gap are provided with a polymer concrete layer, the liquid collected and concentrated in this joint gap can be prevented from circumventing the elastomer seal through the side surfaces of the tunnel ring segment "Eat".
    A preferred embodiment of the invention in this sense provides that the polymer concrete layer extends in addition to the total inner surface over the four side surfaces of the tunnel ring segment in a segment from the sides of the inner surface up to and including the sealing groove. This course of the polymer concrete layer ensures that the entire inner surface area of the tunnel ring segment that comes into contact with the inner surface of the tunnel ring that is guided into the interior of the tunnel is covered by a sealing protective layer. Neither via the inner surfaces of the tunnel ring segment, nor via the "critical" joint gaps between the adjacent tunnel ring segments bounded by polymer concrete layers and elastomer seals provided with such a sealing geometry can dangerous liquids or gases from the waste water tunnel enter the surrounding soil.
    In a further preferred embodiment variant, the outer surface of the tunnel ring segment is provided in reverse form with respect to the configuration of the polymer concrete layer outlined above, and in a segment from the sides of the outer surface up to and including the sealing groove the side surfaces of the tunnel ring segment are provided with a polymer concrete layer. Such a lining device can protect the tunnel ring segment and therefore also the tunnel lining against the ingress of liquids, in particular the ingress of groundwater from outside. This outer protection may be desirable in areas of application where groundwater-sensitive devices or substances are introduced into the interior of the tunnel, as is the case, for example, with cable tunnels for power lines or with drinking water tunnels. This is of special significance in connection with contaminated groundwater or soil.
    The invention provides several possibilities for connecting the seal to the polymer concrete layer. The polymer concrete layer can thus extend over the entire width of the seal on the side faces, which leads to a complete radially oriented overlap of the seal. This embodiment offers a very effective sealing effect. Alternatively, the overlap region can also extend only over a part of the width of the seal, whereby absolute density is also guaranteed. A further embodiment provides that the polymer concrete layer connects to the seal without radial overlap and forms only a blunt radial connection to the seal. This embodiment also guarantees the density between polymer concrete layer and seal and appears to be particularly advantageous when the polymer concrete layer only extends over the inner surface and / or outer surface of the tunnel ring segment and a continuous sealing effect is to be achieved with the seal applied to the side surfaces. to become. In this embodiment, the polymer concrete layers on the side faces of the tunnel ring segment and the associated complexity are eliminated without having to increase the cost of reducing the sealing effect.
    In the invention, as reaction resins for the polymer concrete layer, methacrylate polyester or epoxy resins or polyurethanes are preferred. Particularly polymeric concrete layers produced by epoxy resin as binder have been found to be mechanically very solid and chemically very resistant. The amount of binder used should be adjusted in such a way that with such a composition of the polymer concrete it is ensured that the polymer concrete layer of the tunnel ring segment is sufficiently solid and that it has no contraction after casting. To ensure reliable and durable cooperation of tunnel ring segment base body and polymer concrete layer, the adhesive strength between these materials is at least 2.0 N / mm 2, preferably at least 2.5 N / mm 2 '
    With regard to the thickness of the polymer concrete layer, care should be taken that on the one hand the polymer concrete still forms a completely closed coating even with a foreseen service life of the inlet and outlet tunnel from 50 to 100 years and that on the other hand the polymer concrete is considerably more expensive due to the value of the binder concrete than usual. An optimum compromise here has been a layer thickness of at least 10 mm, preferably at least 15 mm for the polymer concrete layer.
    The thickness can also be greater in the area of the side surfaces of the tunnel ring segment than in the area of the inner surface and / or outer surface, in order to improve the sealing action in the connection area for the circumferential seal.
    In order to further increase the resistance of the tunnel ring segment or the tunnel lining composed therefrom with respect to chemical attacks and weather influences, it has been proposed in a particularly preferred embodiment of the invention that the base body of the tunnel ring segment at least partially covered by the polymer concrete layer consists of an acid-resistant concrete. Such a concrete with a high acid resistance can, for example, comprise as binder fly ash, slag sand, aluminates and / or microsilica, which refine the pore construction in the concrete and therefore make the concrete construction even denser and more chemical resistant.
    In order to increase the mechanical strength and load-bearing capacity of the tunnel ring segment and the tunnel lining made therefrom, the tunnel ring segment may comprise a reinforcement, preferably made of steel. The reinforcement can herein extend both through the basic body and also through the protective layer (partially) covered by polymer concrete. In addition to rod-shaped reinforcement elements, reinforcement fibers, for example made of steel, textile or plastic, are also suitable for the invention.
    In order to firmly connect the tunnel rings arranged along the tunnel to the earth substrate or a further, rear tunnel wall, it is advantageous to provide the tunnel ring segments with recesses in which corresponding anchoring elements, for example in the form of stainless steel dowel or anchor systems, can be used. . According to a preferred embodiment of the present invention, these anchoring receptacles are each realized by a passage bore connecting the inner and outer surface of the tunnel ring segment, which bore can be pocket-shaped for the form-fitting abutment of the anchoring head towards the inner surface of the tunnel ring segment.
    Both the longitudinal side surfaces and the end side surfaces may have form-closing means for the mutual centering of two adjacent tunnel ring segments. In the simplest case, the form-closing means consist of a depression in a tunnel ring segment in which a complementally formed protruding part engages in another tunnel ring segment.
    The tunnel ring segment can further comprise a recess or a hole on its end side faces. For example, connecting bolts can be inserted into these recesses or holes, so that the tunnel ring segments can easily be aligned and fixedly connected with their tunnel ring segments adjacent to the longitudinal axis of the tunnel when they are installed in a tunnel.
    Such an alignment and anchoring in the direction of the longitudinal axis of the tunnel can instead or additionally also take place through recesses formed on the longitudinal surfaces of the tunnel ring segment, which in the built-in state in each case together with a corresponding recess of the adjacent tunnel ring segment forms for receiving a connecting element, for example a bolt or rod that can be used there.
    The invention is explained in more detail below with reference to an exemplary embodiment shown in the figures.
    Figure 1 shows a perspective view of a tunnel ring for a tunnel extension, which is composed of tunnel ring segments according to the invention,
    Figure 2 shows a front view of a tunnel ring composed of four tunnel ring segments according to the invention,
    Figure 3 shows an enlarged view of the detail III in Figure 2 for clarifying the joint between the tunnel ring segments of the tunnel ring,
    Figure 4 shows an enlarged section through a tunnel ring segment according to the invention along the line IV-IV in Figure 2, and
    Figure 5 shows a partial section through the impact region of two adjacent tunnel ring segments in the region of the seal, and
    Figure 6 shows a partial section in the connection region of the polymer concrete layer on the seal of a tunnel ring segment according to the invention.
    Figure 1 shows a perspective view of a tunnel ring 7 that can be built into a tunnel, which in the present example consists of eight tunnel ring segments 1, which are each connected to each other at the ends of their curved outer and inner surfaces 2, 3 and which with their outer surfaces 2 support in the surrounding rock not shown here. The tunnel ring segments 1 therefore form the separate concrete segments of the tunnel ring 7 prefabricated from concrete, the completed tunnel tube in turn being created by end-to-end engagement of these individual tunnel rings 7 in tunnel longitudinal direction L. The inner wall of the tunnel tube is thereby formed by the concave curved inner surfaces 3 of the constructed tunnel ring segment 1, which are prefabricated with a corrosion-resistant protective layer 4 made of polymer.
    In Figures 1 to 6, the polymer concrete layer 4 is each applied to the inner surfaces 3 of the tunnel ring segments 1, this layer 4 being accentuated for the viewer with dark-colored filling. Thus, according to the tunnel ring 7 shown in Figure 1, the polymer concrete layer 4 encloses the entire inner circumference of the tunnel tube joined from such tunnel rings 7, so that in the case of a waste water tunnel the waste water medium passed through it can only come into contact with this polymer concrete layer 4, while a contact of the waste water medium with the remaining base body 12 of the tunnel ring segment 1 covered by the polymer concrete layer 4 and facing towards the outside 2 is excluded. This basic body 12 can therefore be poured out of normal concrete in a cost-saving manner, because it is protected against corrosion by the polymer concrete layer 4.
    The polymer concrete used for the inner protective layer 4 preferably comprises epoxy resin as a binder and is not only highly corrosion-resistant, but also has excellent static characteristic values, so that the thickness H of the polymer concrete layer 4 (see Figure 4) is 12 mm to 15 mm at normal tunnel ring segment densities from 30 to 60 cm can be constructed comparatively small.
    Figure 2 shows a preferred embodiment of a tunnel ring 7 for a waste water tunnel, which is formed from four similar tunnel ring segments 1, wherein each tunnel ring segment 1 in accordance with Figure 1 has a ring segment-shaped structure with an inner surface concave curved towards the inside of the tunnel 3 and with an outer surface 2 located parallel to the inner surface 3 and facing the surrounding ground in the later installation state. From this schematic front view it can be seen that the inner and outer surfaces 3, 2 of the tunnel ring segment 1 are each via two longitudinal side surfaces 5 connected in turn, separated by a joint 17, opposite the corresponding longitudinal side surfaces 5 of the adjacent tunnel ring segments 1 of the same tunnel ring 7. As can be seen from the cross-section according to Figure 4, parallel to the longitudinal direction L of the tunnel, taken along the line IV-IV of Figure 2, the tunnel ring segment 1 furthermore comprises two end-side surfaces 6 connecting the inner and outer surface 3, 2 which in a manner not shown on completion of the tunnel tube, also separated by a joint, will be situated opposite the corresponding end-side faces 6 of the adjacent tunnel ring segments 1 of the successive tunnel rings 7.
    In accordance with the embodiment according to Figure 1, the inner surfaces 3 of the tunnel ring segment 1 in Figures 2 - 4 are each provided with a sealing protective layer 4 made of polymer concrete, with the polymer concrete layer 4, however, for further improvement of the sealing effect in subareas across the four side surfaces 5 6 extends from the tunnel ring segment 1. How the course of the black-filled polymer concrete layer 4 along the tunnel ring segment side faces 5, 6 is designed, becomes more recognizable for the longitudinal side faces 5 from the enlarged detailed representation according to Fig. 3, while the course of the polymer concrete layer is visible on the end side faces 6 in Fig. 4. The four side faces 5, 6 of the tunnel ring segment 1 lie, as sketched, join to the side faces 5, 6 of adjacent tunnel ring segments 1, with a joint 17 remaining between the side faces 5, 6 and sealed with a sealing compound, in the embodiment shown with an elastomer seal 9. This elastomer seal 9, which is approximately circular in cross section, is arranged in opposite grooves 8, each having a trapezoidal cross section of the adjacent tunnel ring segments 1, wherein the grooves 8 for receiving the elastomer seal 9 are each framed in the four side faces 5, 6 of the tunnel ring segments 1 are formed. As an additional sealing barrier, the elastomer seal 9 serves to protect the density of the joints 17 between the opposite side faces 5, 6 of adjacent tunnel ring segments 1 of a tunnel ring 7 or two consecutive tunnel rings 7.
    However, since between the sides 10 of the inner surfaces 3 of adjacent tunnel ring segments 1 highly corrosive liquid or gas can penetrate into the joint 17 up to the applied elastomer seal 9, it is particularly efficient and in the exemplary embodiment shown in FIGS. 2-4. it is also realized that the sealing polymer concrete layer 4 is not only provided on the inner surface 3 of the tunnel ring segment 1, but additionally in a segment from the sides 10 of the inner surface 3 up to and including the sealing groove 8 also on the four side surfaces 5, 6. In this way, the joint 17 is enclosed towards the interior of the tunnel around by the polymer concrete layer 4 of the tunnel ring segment 1 and by the elastomer seal 9, and it is prevented that aggressive media in the joint gaps 17 are prevented from damaging an unprotected tunnel ring segment wall and thus in the surrounding get rich.
    Figures 5 and 6 show in each case a partial section through the impact area of two adjacent tunnel ring segments 1, which is valid for both the end side faces 6 and also longitudinal side faces 5. The tunnel ring segment 1 shown on the left shows an embodiment of the invention in which the polymer concrete layer 4 radially continues the inner surface 3 on the side surfaces 5, 6 of the tunnel ring segment 1 up to a sealing profile 9 circulating there. The sealing profile 9 is herein incorporated as an integrated seal with its underside in the polymer concrete layer 4, which already takes place in the context of concreting the tunnel ring segment 1. In this embodiment, polymer concrete layer 4 and sealing profile 9 overlap in the radial direction over the total width of the sealing profile 9.
    In the tunnel ring segment 1 shown to the right in Figure 5, the integrated seal 9, which is incorporated here in the cement concrete of the tunnel ring segment base body 12, and the polymer concrete layer 4 of the side faces 5, 6 form a blunt connection in radial direction, without thereby causing a radial overlap to feed. The sealing effect is achieved here over the plane of the blunt connection.
    Further embodiments of the invention, not shown, relate to tunnel ring segments in which the polymer concrete layer of a side surface 5, 6 only partially overlaps radially with the sealing profile.
    Figure 6 finally shows an embodiment of the invention, wherein a polymer concrete layer 4 is provided only on the inner surface 3 of the tunnel ring segment 1. To achieve a continuous sealing effect with an adjacent tunnel ring segment 1, the tunnel ring segment 1 comprises on one or all of the side faces 5, 6 a sealing groove 8 immediately adjacent to the polymer concrete layer 4, into which a sealing section 9 is adhered afterwards. The bulging of the sealing section 9 occurring during the joining of two tunnel ring segments 1 brings about a transverse expansion and hence a reliable seal to the polymer concrete layer 4. An integrated seal 9 can also be used instead of the sealing groove 8 with afterwards fitted sealing section 9, as above Figure 5 has been explained.
    If tunnel ring segments 1 are to be used for the construction of cable tunnels or drinking water tunnels, - contrary to the tunnel ring segment variants 1 for waste water tunnels shown in Figs. 1-5 - a seal from the inside to the outside is not necessary, but rather a goal here is to reliably exclude the penetration of foreign liquid, such as groundwater or contaminated soil, from the surrounding earth to the sensitive devices (for example, power or signal cables) led into the interior of the tunnel or media (for example, drinking water). Consequently, in such application cases, an arrangement of the polymer concrete layer 4, which is mirror-mirrored with respect to FIGS. 1 to 5, is required which is located on the tunnel ring segment 1 over the entire outer surface 2 and advantageously over the side surfaces 5, 6 in a segment of the sides 11 of the outer surface 2 up to and including the sealing groove 8 should extend. Both this variant and also the variant of a tunnel ring segment 1 protected on both sides on inner and outer surfaces (and possibly also lateral surfaces) with a polymer concrete layer should also fall within the scope of the present invention despite a lack of visual representation.
    Similarly, the invention is not limited to the concrete feature combinations of the embodiments shown in the figures, but also includes the combinations of features of various described embodiments.
    权利要求:
    Claims (20)
    [1]
    Tunnel ring segment made of concrete for covering a tunnel, in particular of a tunnel for the transport of aggressive liquids, wherein the tunnel ring segment (1) has a convex-curved outer surface (2) and a concave facing the outer surface (2). comprises a curved inner surface (3) and wherein the tunnel ring segment (1) is provided on its outer and / or inner surface (2, 3) with a sealing protective layer (4), characterized in that the protective layer is formed by a polymer concrete layer (4) ).
    [2]
    Tunnel ring segment according to claim 1, characterized in that the inner surface (3) is connected to the outer surface (2) via side surfaces (5, 6), namely via two longitudinal side surfaces (5), via which a plurality of tunnel ring segments (1) can be assembled into a tunnel ring (7), and via two end side faces (6), via which a plurality of tunnel ring segments (1) can be joined in axial direction (L), and that at least one side face (5, 6) of the tunnel ring segment ( 1), preferably all side surfaces (5, 6), is provided with a polymer concrete layer (4) at least in partial areas.
    [3]
    Tunnel ring segment according to claim 1 or 2, characterized in that a frame-shaped closed seal (9) is fitted in the side faces (5, 6) of the tunnel ring segment (1), which seal fits tightly to the polymer concrete layer (4).
    [4]
    Tunnel ring segment according to claim 3, characterized in that the polymer concrete layer (4) completely overlaps radially with the seal (9) in the connection region to the seal (9).
    [5]
    Tunnel ring segment according to claim 3, characterized in that the polymer concrete layer (4) partially overlaps radially with the seal (9) in the connection region to the seal (9).
    [6]
    Tunnel ring segment according to claim 3, characterized in that the polymer concrete layer (4) forms a blunt abutment surface with the seal (9) in the connection region to the seal (9) in the radial direction.
    [7]
    Tunnel ring segment according to one of claims 3 to 6, characterized in that the seal (9) is formed by an integrated sealing profile, which has been poured into the concrete for attachment to the tunnel ring segment (1).
    [8]
    Tunnel ring segment according to one of claims 3 to 6, characterized in that the seal (9) is formed by a sealing profile which is subsequently connected to the tunnel ring segment (1).
    [9]
    Tunnel ring segment according to one of claims 3 to 8, characterized in that the seal (9) is arranged within a sealing groove (8) in the tunnel ring segment (1).
    [10]
    Tunnel ring segment according to one of claims 3 to 9, characterized in that the inner surface (3) and - in a segment from the sides (10) of the inner surface (3) to at least the seal (9) - side faces (5, 6) of the tunnel ring segment (1) are provided with a polymer concrete layer (4).
    [11]
    Tunnel ring segment according to one of claims 3 to 10, characterized in that the outer surface (2) and - in a segment from the sides (11) of the outer surface (2) to at least the seal (9) - side faces (5, 6) of the tunnel ring segment (1) are provided with a polymer concrete layer (4).
    [12]
    Tunnel ring segment according to one of claims 1 to 11, characterized in that the thickness (H) of the polymer concrete layer (4) measured perpendicularly to the inner surface (3) or outer surface (2) is uniform.
    [13]
    Tunnel ring segment according to one of claims 1 to 12, characterized in that the polymer concrete (4) comprises as reaction binder a reaction resin, such as methacrylate, polyester or epoxy resin, or polyurethane.
    [14]
    Tunnel ring segment according to one of claims 1 to 13, characterized in that the polymer concrete layer (4) has a thickness (H) of at least 10 mm, preferably at least 15 mm.
    [15]
    Tunnel ring segment according to any one of claims 1-14, characterized in that the base body (12) of the tunnel ring segment (1) (partially) covered by the polymer concrete layer (4) consists of an acid-resistant concrete, which as slag binder sand, aluminates , fly ash and / or microsilica.
    [16]
    Tunnel ring segment according to one of claims 3 to 15, characterized in that the end-side surfaces (6) of the tunnel ring segment (1) are provided with a recess or a hole (14) for receiving a connecting element, for example in the form of a bolt-in plug-in system, the recess or hole (14) being arranged between the sealing groove (8) and the sides (10, 11) of the inner or outer surface (3, 2) not covered with polymer concrete (4) of the tunnel ring segment (1).
    [17]
    Tunnel ring segment according to any one of claims 1-16, characterized in that a recess (15a) is formed on the longitudinal side faces (5) of the tunnel ring segment (1), which in the built-in state together with a corresponding recess (15b) ) of the adjacent tunnel ring segment (1) forms a guide hole for receiving a connecting element (16), for example in the form of a bolt-in plug-in system.
    [18]
    Tunnel ring segment as claimed in any of the claims 1-17, characterized in that form-closing means are provided on the longitudinal side surfaces and / or end-side surfaces to achieve mutual centering of two adjacent tunnel rings.
    [19]
    Tunnel ring segment according to one of claims 2 to 18, characterized in that the thickness of the polymer concrete layer (4) in the area of the side surfaces (5, 6) is greater than in the area of the inner surface (3) and / or outer surface (2).
    [20]
    Tunnel ring segment according to one of claims 1 to 19, characterized in that the adhesive strength between the polymer concrete layer (4) and the base body (12) is at least 2.0 N / mm 2, preferably at least 2.5 N / mm2.
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    同族专利:
    公开号 | 公开日
    NL2005593C2|2013-10-01|
    DE102010049679A1|2011-05-05|
    DE202009014571U1|2010-03-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CH696445A5|2003-09-09|2007-06-15|Aldo Ceresola|Concrete element for covering a tunnel.|EP2568113A1|2011-09-12|2013-03-13|Sika Technology AG|Tubbing with thermoplastic membrane|
    DE202012006597U1|2012-07-10|2012-10-01|Berding Beton Gmbh|Component for collecting and discharging aggressive wastewater, in particular pipe, manhole or tubbing|
    DE102013109594A1|2013-09-03|2015-03-19|MAX BÖGL Fertigteilwerke GmbH & Co. KG|Tubing with a cast protective layer and method for producing such a tubbing|
    DE102015105703B4|2015-04-14|2018-11-08|FF Agrarbau GmbH|Fahrsilo|
    CN107575238B|2017-09-22|2019-09-10|中铁六局集团有限公司|Shield-tunneling construction super close distance grouting method and grouting device|
    CN108286445A|2018-01-05|2018-07-17|徐州新通预制构件制造有限公司|A kind of shield tunnel liner ring|
    法律状态:
    2017-06-07| MM| Lapsed because of non-payment of the annual fee|Effective date: 20161101 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE202009014571U|DE202009014571U1|2009-10-28|2009-10-28|tubbing|
    DE202009014571|2009-10-28|
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