Straddle type monorail track structure suitable for being installed in tunnel

Abstract

The utility model discloses a straddle type monorail track structure suitable for being installed in a tunnel, and belongs to the field of straddle type monorail engineering, the straddle type monorail track structure comprises a track beam and a track connecting structure used for connecting the track beam with the bottom of the tunnel, the bottom of the track beam is arranged to be a connecting box body, and a connecting assembly is arranged to be a plurality of connecting units. The connecting unit is provided with the cavity, so that the weight of the track beam and the connecting unit is reduced, the track beam and the connecting unit are convenient to transport, install and construct, and the bottom and the side of the connecting unit are connected with the bottom of the tunnel and the connecting box through the connecting pieces to achieve rapid installation and construction of the track structure in the tunnel. The straddle type monorail track structure suitable for being installed in the tunnel is simple in structure and convenient and fast to construct, the construction period of the track structure can be effectively shortened, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of straddle-type monorail engineering, and in particular relates to a straddle-type monorail track structure suitable for installation in a tunnel. Background Art

[0002] The straddle-type monorail is a rail transit system that is supported, stabilized and guided by a single track, and the vehicle body uses rubber tires to ride on the track beam. Its main features are low investment cost, short construction period, strong adaptability, and small environmental impact. It is suitable for my country's large medium-sized cities. Although the straddle-type monorail is mainly an elevated bridge structure, in the city center, especially in the prosperous urban area, due to the limitation of ground space, the straddle-type monorail will partially go underground.

[0003] After the straddle-type monorail enters the underground, in order to ensure the manufacturing accuracy of the track, there are currently two main types of straddle-type monorail tunnel track structures: one is a pier-type track structure, for example, patent application CN111022080A proposes a connection structure between a track beam and a shield tunnel, by welding the steel cage of the base to the steel pipe segment, the base and the shield tunnel are effectively connected, the construction is simple, and the cost is low, but the structure needs to be cast in place, and the assembly process is relatively complicated and the construction period is long; the other is a prefabricated track wall, for example, patent application CN108716409A proposes a straddle-type monorail tunnel fully prefabricated track wall structure, by grouting to connect the integrated prefabricated track wall and the tunnel, the form is simple and easy to construct, but this structure needs to reduce the weight of each section by shortening the length of the section for construction and hoisting. Utility Model Content

[0004] In response to one or more of the above-mentioned defects or improvement needs of the prior art, the utility model provides a straddle-type monorail track structure suitable for installation in a tunnel, so as to reduce the weight of each part of the track structure to facilitate on-site construction and hoisting, and simplify the assembly process between the various parts of the structure, so as to quickly complete the construction of the overall track structure, shorten the construction period of the track structure, and reduce construction costs.

[0005] To achieve the above object, the utility model provides a straddle-type monorail track structure suitable for installation in a tunnel, comprising a track beam and a track connection structure for connecting the track beam with the bottom of the tunnel;

[0006] The track beam comprises a beam body and a connection box body connected to the bottom of the beam body;

[0007] The track connection structure includes two connection components arranged on both sides of the connection box in the horizontal direction; the connection component includes a plurality of connection units arranged in sequence in the longitudinal direction;

[0008] A longitudinally penetrating cavity is formed in the connection unit, the bottom of which is connected to the bottom of the tunnel through a plurality of connection pieces, and one side of the connection unit is connected to the connection box through a plurality of connection pieces.

[0009] As a further improvement of the utility model, the bottom of the connection box is connected to the bottom of the tunnel through a plurality of connecting pieces.

[0010] As a further improvement of the present invention, at least one first connecting piece for connecting the ends of two adjacent track beams in the longitudinal direction is respectively provided at both ends of the inner side surface of the connecting box;

[0011] and / or,

[0012] At least one second connecting piece for connecting the ends of two adjacent connecting units in the longitudinal direction is respectively arranged at both ends of the side surface of the cavity.

[0013] As a further improvement of the present invention, the track beam and / or the track connection structure are prefabricated in sections.

[0014] As a further improvement of the present invention, a limiting member is provided between two adjacent connection boxes and / or between two adjacent connection units.

[0015] As a further improvement of the present invention, a limiting member is provided between the bottom of the tunnel and the bottom of the connecting box;

[0016] and / or,

[0017] A limiting member is arranged between the bottom of the tunnel and the bottom of the connecting unit.

[0018] As a further improvement of the present invention, the connecting piece is a bolt assembly.

[0019] As a further improvement of the present invention, a seismic isolation pad is provided at the connection between any two components of the connection box, the connection unit and the tunnel bottom;

[0020] and / or,

[0021] A seismic isolation pad is arranged between two adjacent connection boxes and / or between two adjacent connection units.

[0022] As a further improvement of the present invention, at least one side of the top of the connection box is laterally provided with an extension portion, and the extension portion is connected to the top of the connection unit through a plurality of connecting pieces.

[0023] As a further improvement of the utility model, the straddle-type monorail track structure suitable for installation in a tunnel further includes a filling layer, and the filling layer is filled and arranged on the top of the connecting unit and / or on the side of the connecting unit away from the track beam.

[0024] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0025] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0026] (1) The utility model is a straddle-type monorail track structure suitable for installation in a tunnel. The bottom of the track beam is configured as a connecting box, and the connecting assembly is configured as a plurality of connecting units, and the connecting units are provided with cavities to reduce the weight of the track beam and the connecting units, so that the track structure is convenient for transportation, installation and construction. The bottom and side of the connecting units are respectively connected to the bottom of the tunnel and the connecting box by connecting parts to realize rapid installation and construction of the track structure in the tunnel, thereby shortening the construction period of the track structure and reducing the construction cost.

[0027] (2) The utility model is suitable for the straddle-type monorail track structure installed in the tunnel. By respectively arranging the first connecting member and the second connecting member at both ends of the longitudinal side of the connecting box and the connecting unit, the adjacent connecting boxes and the adjacent connecting units can be quickly installed and fixed together, thereby quickly completing the installation construction of the track structure in the longitudinal direction of the tunnel.

[0028] (3) The utility model is suitable for a straddle-type monorail track structure installed in a tunnel. By respectively arranging limiters on the longitudinal end faces of the connecting box and the connecting unit, the displacement of the connecting box and the connecting unit in the lateral and vertical directions of the tunnel can be limited, so that adjacent connecting boxes and adjacent connecting units can be quickly and accurately docked, and the longitudinal docking construction of the track structure can be completed quickly. Furthermore, limiters are respectively arranged between the bottom of the tunnel and the bottom of the connecting box and the bottom of the connecting unit, so that the displacement of the connecting box and the connecting unit in the lateral and vertical directions of the tunnel can be limited, so that the connecting box and the connecting unit can be quickly and accurately docked at the bottom of the tunnel, and the vertical docking construction of the track structure can be completed quickly.

[0029] (4) The utility model is suitable for the straddle-type monorail track structure installed in the tunnel. It reduces the vibration of the train when the train is running by arranging seismic isolation pads at each joint between the track beam structure, the blocks and the tunnel lining. It also reduces the weight of each track beam and the connection assembly by prefabricating the connection assembly and the track beam in sections, making it convenient to transport, install and construct.

[0030] (5) The straddle-type monorail track structure of the utility model suitable for installation in a tunnel has a simple structure, each part of the structure is light in weight, and the construction is convenient. The construction of the entire track structure can be completed quickly, shortening the construction period of the track structure and reducing the construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a cross-sectional schematic diagram of a straddle-type monorail track structure suitable for installation in a tunnel in an embodiment of the utility model;

[0033] Figure 2 It is a top view of a straddle-type monorail track structure suitable for installation in a tunnel in an embodiment of the utility model;

[0034] Figure 3 It is a structural schematic diagram applicable to the connection between the track installation structure and the tunnel bottom in the embodiment of the utility model.

[0035] In all the drawings, the same figure marks represent the same technical features, specifically: 1. Track beam; 11. Beam body; 12. Connecting box; 121. Extension portion; 122. First connecting member; 123. First limiting member; 2. Connecting assembly; 21. Connecting unit; 211. Cavity; 212. Second connecting member; 213. Second limiting member; 3. Tunnel; 4. Embedded sleeve; 5. Isolation pad; 6. Filling layer. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] Example:

[0042] See also Figure 1~Figure 3The straddle-type monorail track structure suitable for installation in a tunnel in a preferred embodiment of the utility model includes a track beam 1 and a track connection structure for connecting the track beam 1 with the bottom of a tunnel 3. The track beam 1 includes a beam body 11 and a connection box body 12 connected to the bottom of the beam body 11; the track connection structure includes two connection components 2 respectively arranged on both sides of the connection box body 12 in the horizontal direction; the connection component 2 includes a plurality of connection units 21 arranged in sequence in the longitudinal direction.

[0043] In a preferred embodiment, the track beam 1 and / or the connection assembly 2 are manufactured in a prefabrication yard; further, the track beam 1 and / or the connection assembly 2 are prefabricated in sections, and the specific section length can be determined according to the specific conditions on site and construction requirements. Among them, each connection unit 21 is a prefabricated structure of each section of the connection assembly 2. Further preferably, each section of the prefabricated track beam 1 can be connected to one or more connection units 21. In this preferred embodiment, the prefabrication in sections can reduce the weight of the structure, making it convenient for transportation, hoisting, construction and installation.

[0044] Preferably, the connection units 21 can be arranged successively along the longitudinal direction of the tunnel, or can be arranged successively at intervals, or can be arranged partially continuously and partially at intervals; the connection units 21 are preferably symmetrically arranged on both sides of the connection box 12 to provide symmetrical lateral support for it.

[0045] Furthermore, the connection unit 21 is provided with a longitudinally through cavity 211, the bottom of the connection unit 21 is connected to the bottom of the tunnel 3 through a plurality of connectors, and one side thereof is connected to the connection box 12 through a plurality of connectors to realize the installation of the track structure in the tunnel.

[0046] Furthermore, in the preferred embodiment, the connecting parts may include but are not limited to: bolts, studs, screws, nuts, washers, retaining rings, pins, rivets, welding nails and other components.

[0047] Further, the connecting member is preferably a bolt assembly.

[0048] In a preferred embodiment, the connecting unit 21 can be connected to the track beam 1 and the bottom of the tunnel 3 respectively by a bolt assembly, so that the track beam 1 and the connecting unit 21 form an integral track structure extending along the longitudinal direction of the tunnel. The structure is simple and the construction is convenient. The track structure construction can be completed quickly, and the bolt connection is easy to disassemble, which is convenient for the inspection and maintenance of the track structure.

[0049] In a preferred embodiment, the cavity 211 provided in the connecting unit 21 is preferably capable of accommodating at least one worker to pass through, so as to facilitate the installation and construction of the track structure; further, the channel formed by the cavities 211 connected in sequence can be used as a life-saving channel to accommodate the passage of life-saving personnel and equipment, and can also be used as a line channel to place optical cables, electrical cables, etc. of rail transit.

[0050] In a specific embodiment, a first hole is provided at the contact point between the side of the connection box 12 and the connection unit 21, and a second through hole is provided on the connection unit 21 corresponding to the first hole. The second through hole and the corresponding first hole connect the connection box 12 and the connection unit 21 through a bolt assembly.

[0051] More specifically, the first holes are evenly distributed along the longitudinal direction of the tunnel on the connecting box 12, and the direction of the first holes in the cross section of the connecting box 12 can be vertical, oblique, horizontal, etc. without specific limitation; the first holes on the connecting box 12 preferably include through holes and blind holes.

[0052] In another specific embodiment, a plurality of third through holes are provided at the connection between the bottom of the connecting unit 21 and the bottom of the tunnel 3, and an embedded sleeve 4 is provided at the bottom of the tunnel corresponding to the third through holes. The embedded sleeve 4 and the corresponding second through holes connect the connecting unit 21 to the bottom of the tunnel 3 through a bolt assembly.

[0053] Preferably, the embedded sleeve 4 arranged at the bottom of the tunnel 3 is a U-shaped sleeve, each U-shaped sleeve corresponds to two adjacent fifth through holes on the connecting unit 21, and the U-shaped sleeve has pull-out resistance, which can not only enable the connecting unit 21 to form a firm and reliable connection with the tunnel 3, but also enable the connecting unit 21 to maintain a relatively stable state when the rail train is running.

[0054] Furthermore, the bottom of the connection box 12 is connected to the bottom of the tunnel 3 through a plurality of connection pieces.

[0055] Specifically, a plurality of third through holes are provided at the connection between the bottom of the connecting box 12 and the bottom of the tunnel 3, and an embedded sleeve 4 is provided at the bottom of the tunnel 3 corresponding to the third through holes. The embedded sleeve 4 and the corresponding third through holes connect the box 12 to the bottom of the tunnel 3 through a bolt assembly.

[0056] Preferably, the embedded sleeve 4 provided at the bottom of the tunnel 3 is a U-shaped sleeve, which is connected to the corresponding two third through holes on the connection box 1 by a bolt assembly.

[0057] Furthermore, at least one first connecting member 122 for connecting the ends of two adjacent track beams in the longitudinal direction is respectively provided at both ends of the inner side surface of the connecting box 12 .

[0058] In a preferred embodiment, the first connecting member 122 may be a steel plate partially anchored in the connecting box 12 and connected by welding; the first connecting member 122 may also be a protruding portion of the connecting box 12 itself and connected by fasteners.

[0059] In a specific embodiment, the first connecting member 122 can be a first protrusion arranged at both ends of the inner side surface of the connecting box 12, and a fourth through hole is arranged on it, wherein when adjacent connecting boxes 12 are docked, the first protrusions are also docked accordingly, and the fourth through holes on the two docking first protrusions connect the adjacent connecting boxes 12 through a bolt assembly.

[0060] Preferably, the first protrusions can be arranged on any side surface of the connecting box 12, and the specific position is not limited; one or more pairs of first protrusions can be arranged on each side surface, and one or more fourth through holes can be arranged on the first protrusions.

[0061] In this embodiment, when all the connecting boxes 12 are connected together in sequence, all the first connecting members 122 are also connected together in sequence. Each pair of first connecting members 122 is connected by a fourth through-hole bolt assembly, so that all the track beams 1 are quickly connected into a whole along the longitudinal direction of the tunnel. The connection tightness of adjacent track beams 1 can be increased by arranging multiple fourth through holes on the first connecting members 122.

[0062] Furthermore, at least one second connecting member 212 for connecting the ends of two adjacent connecting units 21 in the longitudinal direction is respectively provided at both ends of the side surface of the cavity 211 .

[0063] In a preferred embodiment, the second connecting member 212 may be a steel plate partially anchored in the connecting unit 21 and connected by welding; the second connecting member 212 may also be a protruding portion of the connecting unit 21 itself and connected by fasteners.

[0064] In a specific embodiment, the second connecting member 212 arranged on the side of the cavity 211 of the connecting unit 21 can be a second protrusion, on which a fifth through hole is arranged, wherein when the connecting unit 21 is docked, the second protrusion is also docked accordingly, and the fifth through holes on the two docked second protrusions are connected by a bolt assembly.

[0065] Preferably, the second bumps may be disposed on any side surface of the cavity 211 , with no limitation on the specific position; one or more pairs of second bumps may be disposed on each side surface of the cavity 211 , and one or more fifth through holes may be disposed on the second bumps.

[0066] In this embodiment, when all the connection units 21 are connected together in sequence, all the second connection members 212 are also connected together in sequence, and the fifth through holes on each pair of connected second connection members 212 are connected by a bolt assembly, so that all the connection units 21 are quickly connected into a whole along the longitudinal direction of the tunnel, and the connection tightness of adjacent connection units 21 can be increased by arranging multiple fifth through holes on the second connection members 212.

[0067] Furthermore, a third limiter is provided between the bottom of the tunnel 3 and the bottom of the connecting box 12; further, a third limiter is provided between the bottom of the tunnel 3 and the bottom of the connecting unit 21; further, a first limiter 123 is provided between two adjacent connecting boxes 12, and a second limiter 213 is provided between two adjacent connecting units 21, wherein the first limiter 123, the second limiter 213 and the third limiter are all limiters and are only used to distinguish specific positions.

[0068] Preferably, the limiting member may be a concave-convex matching limiting structure, and the shape and size of the limiting member are not limited, and the specific setting position of the limiting member on the end surface of the connecting box body 12 is not limited.

[0069] In a specific embodiment, the first limiting members 123 respectively arranged on the two end surfaces of the connecting box 12 along the longitudinal direction of the tunnel are first protrusions and first grooves of corresponding shapes and sizes, and the first grooves and first protrusions on adjacent connecting boxes 12 are matched and combined; the second limiting members 213 respectively arranged on the two end surfaces of the connecting unit 21 along the longitudinal direction of the tunnel are second protrusions and second grooves of corresponding shapes and sizes, and the second grooves and second protrusions on adjacent connecting units 21 are matched and combined.

[0070] Specifically, the third limiting member is a concave-convex matching limiting structure, wherein the convex structure can be set at the bottom of the tunnel 3, or at the bottom of the connecting box 12 and / or the bottom of the connecting unit 21, and a groove structure matching the size and shape of the convex structure is set at the docking point with the convex structure.

[0071] In this embodiment, the first limiter 123 and the second limiter 213 can respectively limit the connection box 12 and the connection unit 21 in the horizontal and vertical directions along the tunnel 3, and can also provide positioning for the docking installation of adjacent connection boxes 12 and connection units 21, so that adjacent connection boxes 12 and adjacent connection units 21 can be quickly matched, thereby improving the installation efficiency and installation accuracy of the track structure in the longitudinal direction of the tunnel; the third limiter can limit the connection box 12 and / or the connection unit 21 in the horizontal and longitudinal directions of the tunnel 3, and can also provide positioning for the docking installation of the connection box 12 and / or the connection unit 21 with the tunnel 3, thereby enabling them to be quickly matched, thereby improving the installation efficiency and installation accuracy of the track structure in the vertical direction of the tunnel.

[0072] Furthermore, a seismic isolation pad 5 is provided at the connection between any two of the connection box 12 , the connection unit 21 and the bottom of the tunnel 3 ; and a seismic isolation pad 5 is provided at the connection between two adjacent connection boxes 12 and / or between two adjacent connection units 21 .

[0073] For example, in Figure 1In the preferred embodiment shown, seismic isolation pads 5 are provided at the joints between the connection box 12 and the connection unit 21 and the bottom of the tunnel 3 respectively; preferably, seismic isolation pads 5 are provided at the joints between the connection unit 21 and the tunnel lining 3; preferably, seismic isolation pads 5 are provided at the joints between adjacent connection boxes 12 and adjacent connection units 21.

[0074] Furthermore, at least one side of the top of the connection box 12 is provided with an extension portion 121 in the transverse direction, and the extension portion 121 is connected to the top of the connection unit 21 through a plurality of connecting pieces. Figure 1 In the preferred embodiment shown, the above-mentioned connecting member is further preferably a bolt assembly.

[0075] Furthermore, the straddle-type monorail track structure suitable for installation in a tunnel further comprises a filling layer 6, which is filled and arranged on the top surface of the connecting unit 21 and / or one side of the connecting unit 21, such as Figure 1 as shown in .

[0076] In actual configuration, the top surface of the filling layer 6 preferably does not exceed the top surface of the connecting box 12. Figure 1 In the preferred embodiment shown, the top surface of the filling layer 6 is flush with the top surface of the elongated portion 121 .

[0077] In a preferred embodiment, the filling layer 6 can be formed by concrete poured in the tunnel 3 after the track beam 1 and the connecting unit 21 are installed, forming a seal and reinforcement for the outermost side of the connection between the connecting box 12 and the connecting unit 21 and the outermost side of the connection between the connecting unit 21 and the tunnel 3.

[0078] Preferably, a water ditch extending in the longitudinal direction of the tunnel is provided on the filling layer 6 so that the liquid on the track structure flows into the water ditch and flows out along the water ditch.

[0079] Preferably, a flexible pavement material may be provided on the outer side of the track beam 1 to level the surface of the installed tunnel beam 1 and to allow the track beam structure of the tunnel curved section to have a more suitable curvature.

[0080] As follows, the track structure in the preferred embodiment is further described through a specific preferred embodiment, and its structure is as follows Figures 1 to 3 as shown in .

[0081] In this embodiment, the track structure that can be quickly installed in a straddle-type monorail tunnel includes a track beam 1 prefabricated in sections and a track connection structure for connecting the track beam 1 to the bottom of the tunnel 3. The track beam 1 includes a beam body 11 and a connection box body 12 connected to the bottom of the beam body 11, and the top two sides of the connection box body 12 are provided with extension parts 121 in the transverse direction; the track connection structure includes two connection components 2 that are arranged on the two transverse sides of the connection box body 12; the connection component 2 includes a plurality of connection units 21 that are arranged in sequence longitudinally, and the connection unit 21 is provided with a cavity 211. After the tunnel 3 is constructed, seismic isolation pads 5 are provided at the joints between the bottom of the tunnel 3 and the track beam 1 and the connection component 2, and the connection unit 21 is further quickly placed at the corresponding position of the bottom of the tunnel 3 by a third concave-convex matching limiter, and the second through hole on the connection unit 21 is connected to the U-shaped sleeve pre-buried on the bottom of the tunnel 3 by a bolt assembly, so that the connection unit 21 and the tunnel 3 can be quickly installed and fixed.

[0082] Furthermore, if Figure 3 As shown, a seismic isolation pad 5 is arranged between adjacent connection units 21, and the second limiting members 213 on the two end faces of the connection units 21 along the longitudinal direction of the tunnel are used to realize rapid and accurate docking of the adjacent connection units 21. At this time, the second connection members 212 on the adjacent connection units 21 are also opposite to each other with their end faces, and the two corresponding second connection members 212 are connected by a bolt assembly to realize rapid installation and fixation of the adjacent connection units 21.

[0083] Furthermore, after the connection component 2 is installed and fixed for a certain length along the longitudinal direction of the tunnel, seismic isolation pads 5 are arranged at the connection between the bottom of the connection box 12 and the bottom of the tunnel 3, and at the connection between the connection box 12 and the connection unit 21. The track beam 1 is placed between the connection units 21 on both sides, and the third through hole on the connection box 12 is connected to the U-shaped sleeve embedded in the bottom of the tunnel 3 by a bolt assembly, so as to realize the rapid installation and fixation of the track beam 1 and the tunnel 3.

[0084] Furthermore, seismic isolation pads 5 are arranged at the contact points between adjacent track beams 1, and the first limiting members 123 on the two end faces along the longitudinal direction of the tunnel on the connecting box 12 are used to achieve rapid and accurate docking of the adjacent track beams 1. At this time, the first connecting members 122 on the adjacent connecting boxes 12 are also facing each other with their end faces, and the two corresponding first connecting members 122 are connected by a bolt assembly to achieve rapid installation and fixation of the adjacent track beams 1.

[0085] More specifically, the first holes of the connecting box 12 and the first through holes corresponding to the connecting units 21 on both sides are connected by bolt assemblies, so that the track beam 1 and the connecting units 21 are connected to form an integral track structure.

[0086] Finally, after the track beam 1 and the connection assembly 2 are installed, concrete is poured in the tunnel 3 to form a filling layer 6. The top surface of the filling layer 6 does not exceed the top surface of the connection box 12, and a ditch extending longitudinally along the tunnel is arranged on the filling layer 6 so that the liquid on the track structure flows into the ditch and flows out along the ditch.

[0087] The straddle-type monorail track structure suitable for installation in a tunnel in the utility model has a simple structural form, each part of the structure is light in weight, and the construction is convenient. The construction of the overall track structure can be completed quickly, the construction period of the track structure can be shortened, and the construction cost can be reduced.

[0088] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A straddle-type monorail track structure suitable for installation in a tunnel, comprising a track beam and a track connection structure for connecting the track beam to the bottom of the tunnel; characterized in that: The track beam comprises a beam body and a connection box body connected to the bottom of the beam body; The track connection structure includes two connection components arranged on both sides of the connection box in the horizontal direction; the connection component includes a plurality of connection units arranged in sequence in the longitudinal direction; A longitudinally penetrating cavity is formed in the connection unit, the bottom of which is connected to the bottom of the tunnel through a plurality of connection pieces, and one side of the connection unit is connected to the connection box through a plurality of connection pieces.

2. The straddle-type monorail track structure suitable for installation in a tunnel according to claim 1, characterized in that: The bottom of the connection box is connected to the bottom of the tunnel through a plurality of connection pieces.

3. The straddle-type monorail track structure suitable for installation in a tunnel according to claim 1, characterized in that: At least one first connecting piece for connecting the ends of two adjacent track beams in the longitudinal direction is respectively provided at both ends of the inner side surface of the connecting box; and / or, At least one second connecting piece for connecting the ends of two adjacent connecting units in the longitudinal direction is respectively arranged at both ends of the side surface of the cavity.

4. The straddle-type monorail track structure suitable for installation in a tunnel according to claim 1, characterized in that: The track beam and / or the track connection structure are prefabricated in sections.

5. The straddle-type monorail track structure suitable for installation in a tunnel according to claim 4, characterized in that: A limiting member is arranged between two adjacent connection boxes and / or between two adjacent connection units.

6. The straddle-type monorail track structure suitable for installation in a tunnel according to any one of claims 1 to 5, characterized in that: A limiting member is provided between the bottom of the tunnel and the bottom of the connecting box; and / or, A limiting member is arranged between the bottom of the tunnel and the bottom of the connecting unit.

7. The straddle-type monorail track structure suitable for installation in a tunnel according to any one of claims 1 to 5, characterized in that: The connecting piece is a bolt assembly.

8. The straddle-type monorail track structure suitable for installation in a tunnel according to any one of claims 1 to 5, characterized in that: A seismic isolation pad is provided at the connection between any two components of the connection box, the connection unit and the tunnel bottom; and / or, A seismic isolation pad is arranged between two adjacent connection boxes and / or between two adjacent connection units.

9. The straddle-type monorail track structure suitable for installation in a tunnel according to any one of claims 1 to 5, characterized in that: An extension portion is arranged on at least one side of the top of the connection box body in a transverse direction, and the extension portion is connected to the top of the connection unit through a plurality of connecting pieces.

10. The straddle-type monorail track structure suitable for installation in a tunnel according to claim 9, characterized in that: It also includes a filling layer, which is filled and arranged on the top of the connecting unit and / or on a side of the connecting unit away from the track beam.

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