Straddle type monorail track structure capable of being rapidly installed in tunnel

Abstract

The utility model discloses a straddle type monorail track structure capable of being rapidly installed in a tunnel, which belongs to the field of straddle type monorail engineering and comprises a track beam and a track lower structure arranged between the track beam and the bottom of the tunnel. And the top and the bottom of the supporting unit are connected with the bottom of the track beam and the bottom of the tunnel through connecting pieces respectively, so that construction of the track structure in the tunnel is rapidly completed. The straddle type monorail track structure capable of being rapidly installed in the tunnel is simple in structural form, convenient and fast to construct, and capable of rapidly completing connection among all part structures, rapidly completing construction of the whole track structure, shortening the construction period of the track structure and reducing the construction cost.

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 which can be quickly installed 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 in the prior art, the utility model provides a straddle-type monorail track structure that can be quickly installed 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 that can be quickly installed in a tunnel, comprising a track beam and a track substructure disposed between the track beam and the bottom of the tunnel;

[0006] The track substructure includes a plurality of support units arranged in sequence longitudinally;

[0007] The support unit comprises a support block arranged below the track beam, and support parts are respectively arranged on two lateral sides of the support block;

[0008] The bottom of the support block is connected to the bottom of the tunnel through a plurality of connectors, and the top of the support block is connected to the bottom of the track beam through a plurality of connectors; one end of the support portion is connected to the top of the support block, and the other end of the support portion is connected to the bottom of the tunnel through a plurality of connectors.

[0009] As a further improvement of the present invention, a wing plate is provided on at least one side of the bottom of the track beam, and at least one side of the track beam is connected to the support block via a connecting piece provided on the wing plate;

[0010] and / or

[0011] A recessed portion for accommodating the bottom of the track beam is formed on the top of the support unit, and the support unit is connected to the track beam via a connecting piece arranged in the recessed portion.

[0012] As a further improvement of the present invention, at least one connecting piece for connecting the ends of two adjacent supporting units in the longitudinal direction is respectively provided at both ends of at least one longitudinal side surface of the supporting block and / or at least one longitudinal side surface of the supporting portion.

[0013] As a further improvement of the present invention, at least part of the connecting members are bolt assemblies;

[0014] The bolt assembly comprises a screw rod, a connection hole provided on one of the two connection members, and a threaded sleeve provided on the other member, wherein the screw rod passes through the connection hole and is connected to the threaded sleeve;

[0015] or

[0016] The bolt assembly comprises a screw rod and connection holes respectively arranged on two connection members, and the screw rod passes through the two connection holes and is connected and fixed by a nut.

[0017] As a further improvement of the utility model, the connection hole is arranged on the connection block of the connection member.

[0018] As a further improvement of the present invention, a first limiting member is provided between the bottom of the tunnel and the bottom of the support block and / or the end of the support portion away from the support block;

[0019] and / or

[0020] A second limiting member is arranged between two adjacent supporting units.

[0021] As a further improvement of the present invention, the track beam and / or the track substructure are prefabricated in sections.

[0022] As a further improvement of the present invention, a seismic isolation pad is provided at the joint between the track beam and the track lower structure;

[0023] and / or,

[0024] A seismic isolation pad is provided at the joint between the track substructure and the tunnel bottom;

[0025] and / or,

[0026] A shock-isolating pad is provided at the joint between adjacent support units.

[0027] As a further improvement of the present invention, an extension portion is provided on at least one side of the top of the support block in the lateral direction, and one end of the support portion facing away from the bottom of the tunnel is connected to the extension portion at an angle of 110° to 160°.

[0028] As a further improvement of the present invention, the straddle-type monorail track structure that can be quickly installed in a tunnel further includes a filling layer, and the filling layer is filled between the outer side of the support portion and the bottom of the tunnel.

[0029] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0030] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0031] (1) The utility model discloses a straddle-type monorail track structure that can be quickly installed in a tunnel. The track substructure is configured to be composed of a plurality of support units, and the support units are configured to be composed of support blocks and support parts, so as to reduce the weight of each part of the track substructure, thereby facilitating its transportation, installation and construction. The top and bottom of the support units are respectively connected to the bottom of the track beam and the bottom of the tunnel with connecting pieces, so that the track structure can be quickly installed and constructed in the tunnel, thereby shortening the construction period of the track structure and reducing the construction cost.

[0032] (2) The straddle-type monorail track structure of the utility model can be quickly installed in a tunnel. By setting a specific docking structure and connection method between the track beam and the support unit, the track beam and the track substructure can be quickly installed into a track structure as a whole; further, by setting the connecting piece as a bolt assembly, the installation construction of the track structure in the vertical and longitudinal directions of the tunnel can be quickly completed.

[0033] (3) The straddle-type monorail track structure of the utility model can be quickly installed in a tunnel. By setting a first limiter between the support unit and the bottom of the tunnel, the displacement of the support unit in the lateral and longitudinal directions of the tunnel can be limited, and the support unit can be quickly and accurately docked on the tunnel. By setting a second limiter between adjacent support units, the displacement of the support unit in the lateral and vertical directions of the tunnel can be limited, so that adjacent support units can be quickly and accurately docked, and the docking construction can be completed quickly.

[0034] (4) The straddle-type monorail track structure of the utility model can be quickly installed in a tunnel. It reduces the vibration of the train when it is running by arranging seismic isolation pads at the joints of the track beam, the track substructure and the tunnel lining. It also reduces the weight of each section of the track beam and the track substructure by prefabricating the track substructure and the track beam in sections, making it convenient to transport, install and construct.

[0035] (5) The straddle-type monorail track structure of the utility model that can be quickly installed 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

[0036] 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.

[0037] Figure 1 It is a cross-sectional schematic diagram of a straddle-type monorail track structure that can be quickly installed in a tunnel in an embodiment of the utility model;

[0038] Figure 2 It is a top view of a straddle-type monorail track structure that can be quickly installed in a tunnel in an embodiment of the utility model;

[0039] Figure 3 It is a structural schematic diagram of the connection between the track substructure and the tunnel bottom in an embodiment of the utility model.

[0040] In all the drawings, the same figure marks represent the same technical features, specifically: 1. track beam; 11. wing plate; 2. support unit; 21. support block; 211. extension portion; 22. support portion; 23. recess; 24. first connecting unit; 25. third connecting unit; 26. second limit member; 3. tunnel; 31. second connecting unit; 32. first limit member; 4. seismic isolation pad; 5. filling layer. DETAILED DESCRIPTION

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] Example:

[0047] See also Figure 1~Figure 3 The straddle-type monorail track structure that can be quickly installed in a tunnel in the preferred embodiment of the utility model includes a track beam 1 and a track substructure arranged between the track beam 1 and the bottom of the tunnel 3, and the track substructure includes a plurality of support units 2 arranged in sequence longitudinally.

[0048] In a preferred embodiment, the track beam 1 and / or the support unit 2 are manufactured in a prefabrication yard, and have reliable quality and strength. The track beam 1 and / or the support unit 2 are preferably symmetrical along the vertical symmetry plane of the tunnel, so that the track structure finally formed is evenly and symmetrically stressed in the tunnel; the support units 2 can be arranged successively in the longitudinal direction of the tunnel, or can be arranged successively at intervals, or can be arranged partially continuously and partially at intervals.

[0049] Further preferably, the track beam 1 and / or the track substructure are prefabricated in sections, and the specific section lengths of the track beam 1 and / or the track substructure can be determined according to the specific conditions on site and the construction requirements. Among them, each support unit 2 is a prefabricated structure of each section of the track substructure. Preferably, when the support units 2 are arranged successively in the longitudinal direction of the tunnel, each section of the prefabricated track beam 1 can be connected to one or more support units 2; when the support units 2 are arranged at intervals in the longitudinal direction of the tunnel, each section of the prefabricated track beam 1 is connected to at least two adjacent support units 2.

[0050] In this preferred embodiment, segmented prefabrication can reduce the weight of the structure, making it easier to transport, hoist, construct and install.

[0051] Furthermore, the support unit 2 includes a support block 21 disposed below the track beam 1 , and support portions 22 are respectively disposed on both lateral sides of the support block 21 . The support portions 22 are preferably symmetrically disposed on both sides of the support block 21 to provide symmetrical lateral support for the support block 21 .

[0052] Furthermore, the bottom of the support block 21 is connected to the bottom of the tunnel 3 through a number of connectors, and the top of the support block 21 is connected to the bottom of the track beam 1 through a number of connectors; one end of the support portion 22 is connected to the top of the support block 21, and the other end of the support portion 22 is connected to the bottom of the tunnel 3 through a number of connectors, thereby realizing rapid installation of the track structure in the tunnel.

[0053] Preferably, the connecting parts may include but are not limited to: bolts, studs, screws, nuts, washers, retaining rings, pins, rivets, welding nails and other components.

[0054] In a preferred embodiment, the lateral width of the top of the support block 21 is not less than the lateral width of the track beam 1, and the lateral width of the portion below the top of the support block 21 is smaller than the lateral width of the track beam 1. After the track beam 1 is docked with the support block 21, it can be connected to the bottom of the track beam 1 through a connecting piece from at least one side of the top of the support block 21.

[0055] Further preferably, an extension portion 211 is provided on at least one side of the top of the support block 21 in the lateral direction, and one end of the support portion 22 facing away from the bottom of the tunnel 3 is connected to the extension portion 211 at an angle of 110° to 160°.

[0056] Specifically, the extension portion 211 is provided so that the support block 21 and the support portion 22 of the support unit 2 can form a channel along the longitudinal direction of the tunnel; further, the channel can preferably accommodate at least one worker to facilitate the installation and construction of the track structure. The channels connected in sequence can be used as life-saving channels to accommodate the passage of life-saving personnel and equipment, and can also be used as line channels to place optical cables, electrical cables, etc. of rail transit.

[0057] Furthermore, a wing plate 11 is provided on at least one side of the bottom of the track beam 1 , and at least one side of the track beam 1 is connected to the support block 21 via a connecting member provided on the wing plate 11 .

[0058] In a specific embodiment, a plurality of first through holes are arranged on the wing plate 11 of the track beam 1 along the longitudinal direction of the tunnel, and second holes are arranged on the top of the support unit 2 corresponding to the first through holes, and the first through holes and the corresponding second holes are connected by a connecting piece.

[0059] Further preferably, a recess 23 for accommodating the bottom of the track beam 1 is formed on the top of the support unit 2 , and the support unit 2 is connected to the track beam 1 via a connecting member provided in the recess 23 .

[0060] In a specific embodiment, a plurality of third through holes are arranged on the recess 23 of the support unit 2 along the longitudinal direction of the tunnel, and fourth holes are arranged at the bottom of the track beam 1 corresponding to the third through holes, and the third through holes and the corresponding fourth holes are connected by a connecting piece.

[0061] In a preferred embodiment, the wing plate 11 and the recess 23 can provide positioning for the docking installation of the track beam 1 and the support unit 2, so that they can be quickly matched to proceed to the next step.

[0062] Furthermore, at least one connecting piece for connecting the ends of two longitudinally adjacent supporting units 2 is respectively provided on at least one longitudinal side surface of the supporting block 21 and / or at both ends of at least one longitudinal side surface of the supporting portion 22 .

[0063] In a preferred embodiment, the connecting member may be a steel plate partially anchored in the support block 21 and / or the support portion 22 and connected by welding; the connecting member may also be a protruding part of the support block 21 and / or the support portion 22 itself, for example, Figure 1 The third connecting unit 25 in the preferred embodiment shown.

[0064] Specifically, the third connection unit 25 may be a protrusion provided with a fifth through hole. When adjacent support units 2 are docked, the protrusions provided thereon are also docked accordingly, and the fifth through holes on the two docked protrusions are connected by a bolt assembly.

[0065] Further, some of the connecting members are preferably bolt assemblies.

[0066] Specifically, the bolt assembly includes a screw rod, a connection hole provided on one of the two connecting components, and a threaded sleeve provided on the other component, and the screw rod passes through the connection hole and is connected with the threaded sleeve. For example, in the above preferred embodiment, the first through hole is a connection hole, the second hole is provided with a threaded sleeve, the screw rod passes through the first through hole and is connected with the threaded sleeve in the second hole, and a nut is sleeved on the outside of the screw rod to connect the wing plate of the track beam 1 and the top of the support block 21 together; similarly, in the above another preferred embodiment, the third through hole is a connection hole, the fourth hole is provided with a threaded sleeve, the screw rod passes through the third through hole and the threaded sleeve in the fourth hole to connect the recess 23 of the support unit 2 and the bottom of the track beam 1.

[0067] Preferably, the threaded sleeve may be a U-shaped threaded sleeve connected to two corresponding connecting holes on the component.

[0068] In another specific embodiment, the bolt assembly includes a screw rod and connection holes respectively arranged on two connection members, and the screw rod passes through the two connection holes and is connected and fixed by nuts. For example, in the above preferred embodiment, the first through hole and the second hole are both connection holes, and the screw rod passes through the first through hole and the second hole and is used to fix the flange of the track beam 1 and the top of the support block 21 together with the nut; similarly, in the above another preferred embodiment, the third through hole and the fourth hole are connection holes, and the screw rod passes through the third through hole and the fourth hole and is used to connect the recess 23 of the support unit 2 and the bottom of the track beam 1 together with the nut.

[0069] Furthermore, the connection hole is provided on the connection block of the connection member. For example, in the above preferred embodiment, the fifth through hole is provided on the third connection unit 25, that is, the connection hole is provided on the connection block of the support block 21 and / or the support portion 22, and then two adjacent fifth through holes are passed through by bolts, and two adjacent third connection units 25 are connected with nuts to connect the adjacent support units 2.

[0070] Furthermore, at least one first connection unit 24 is respectively provided on both sides of the bottom of the support block 21 and / or on both sides of one end of the support portion 22 away from the support block 21 ; correspondingly, at least one second connection unit 31 is respectively provided at the bottom of the tunnel 3 corresponding to each first connection unit 24 .

[0071] Preferably, the first connection unit 24 may be a steel plate partially anchored in the support block 21 and / or the support portion 22, and the second connection unit 31 may be a steel plate partially at the bottom of the anchor tunnel 3, and the two are connected by welding.

[0072] Preferably, the first connecting unit 24 and the second connecting unit 31 can also be connected by a bolt assembly; specifically, the first connecting unit 24 is a connecting block provided on the support block 21 and / or the support portion 22, on which a connecting hole is provided, and the second connecting unit 31 is a threaded sleeve provided at the bottom of the tunnel 3, and the first connecting unit 24 and the second connecting unit 31 are connected by a screw.

[0073] In a specific embodiment, the first connecting unit 24 can be a continuous convex strip extending in the longitudinal direction, and the bottom surface of the convex strip is preferably in contact with the bottom of the tunnel 3; the first connecting unit 24 can also be a convex block arranged at intervals in the longitudinal direction; a sixth through hole is preferably provided on the first connecting unit 24, and the second connecting unit 31 corresponding to the bottom of the tunnel 3 is connected by a bolt assembly.

[0074] Further, a first stopper 32 is provided between the bottom of the tunnel 3 and the bottom of the support block 21 , and / or a first stopper 32 is provided between the bottom of the tunnel 3 and the end of the support portion 22 away from the support block 21 .

[0075] Preferably, the first stopper 32 is a concave-convex matching stopper structure, wherein the convex structure can be arranged at the bottom of the tunnel 3, or at the bottom of the support block 21 and / or at the end of the support portion 22 away from the support block 21, and a groove structure matching the size and shape of the convex structure is arranged at the joint with the convex structure. Preferably, the first stopper 32 is evenly distributed along the longitudinal direction of the tunnel 3, such as Figure 3 As shown, they can be arranged in one row, two rows, etc. without any specific limitation, and the shape and size of the first limiting member 32 are not specifically limited.

[0076] In this embodiment, the first limiting member 32 can limit the support unit 2 in the horizontal and vertical directions along the tunnel 3, and can also provide positioning for the docking installation of the support unit 2 and the tunnel 3, so that the two can be quickly matched, thereby improving the installation efficiency and installation accuracy of the track structure along the vertical direction of the tunnel.

[0077] Furthermore, a second limiting member 26 is provided between two adjacent supporting units 2 .

[0078] Preferably, the second limit member 26 is a concave-convex matching limit structure. The shape and size of the second limit member 26 are not limited, and the specific setting position on the end face of the support unit 2 is not limited. It can be set on the end face of the support block 21 and / or the support part 22.

[0079] In this embodiment, the second limiting member 26 can limit the support unit 2 horizontally and vertically along the tunnel 3, and can also provide positioning for the docking installation of adjacent support units 2, so that the two can be quickly matched, thereby improving the installation efficiency and installation accuracy of the track structure along the longitudinal direction of the tunnel.

[0080] Furthermore, seismic isolation pads 4 are provided at the joints between the track beam 1, the support unit 2 and the bottom of the tunnel 3 to reduce vibrations during the running of the train.

[0081] Preferably, a seismic isolation pad 4 is provided at the connection between the track beam 1 and the support unit 2; preferably, a seismic isolation pad 4 is provided at the connection between the support unit 2 and the bottom of the tunnel 3; preferably, a seismic isolation pad 4 is provided at the connection between adjacent support units 2.

[0082] Furthermore, the track structure further includes a filling layer 5 filled between the outer side of the support portion 22 and the bottom of the tunnel 3 .

[0083] In actual configuration, the top surface of the filling layer 5 is preferably not higher than the top surface of the support block 21. Figure 1 In the preferred embodiment shown, the top surface of the filling layer 5 is flush with the top surface of the support block 21 .

[0084] In a preferred embodiment, the filling layer 5 can be formed by concrete poured into the tunnel 3 after the support unit 2 and the track beam 1 are installed, so as to seal and reinforce the outermost connection between the support unit 2 and the bottom of the tunnel 3 .

[0085] Preferably, a drainage ditch extending in the longitudinal direction of the tunnel is provided on the filling layer 5 so that the liquid on the track structure flows into the drainage ditch and flows out along the drainage ditch.

[0086] 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.

[0087] 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 .

[0088] In this embodiment, a straddle-type monorail track structure that can be quickly installed in a tunnel includes a segmented prefabricated track beam 1 and a track substructure, the track substructure includes a plurality of support units 2 that are longitudinally arranged in sequence, the structures of the track beam 1 and the support unit 2 are symmetrical along the vertical symmetry plane of the tunnel, the support unit 2 includes a support block 21 arranged below the track beam 1 and support portions 22 that are arranged on both lateral sides of the support block 21, the top of the support block 21 is provided with extension portions 211 along both lateral sides, the end of the support portion 22 away from the bottom of the tunnel 3 is connected to the extension portion 211 at a certain angle α, so that the support block 21 and the support portion 22 of the support unit 2 form a channel along the longitudinal direction of the tunnel. After the tunnel 3 is constructed, seismic isolation pads 4 are arranged at the joints between the bottom of the tunnel 3 and the support unit 2, and the support unit 2 and the bottom of the tunnel 3 are quickly and accurately docked through the first concave-convex matching limiter 32; then the first connecting unit 24 on the support block 21 and the support part 22 and the second connecting unit 31 on the bottom of the tunnel 3 are connected by a bolt assembly to achieve rapid installation and fixation between the support unit 2 and the tunnel 3.

[0089] Further, if Figure 2 As shown, the adjacent support units 2 are quickly and accurately docked by the second limiting members 26 on the adjacent end faces of the adjacent support units 2. At this time, the corresponding third connecting units 25 on the adjacent support units 2 are also docked end to end, and the corresponding third connecting units 25 are connected by bolt assemblies to achieve rapid installation and fixation of the adjacent support units 2.

[0090] To be more specific, after the support unit 2 is installed and fixed for a certain length along the longitudinal direction of the tunnel, the track beam 1 and the support unit 2 are quickly docked through the wing plate 11 of the track beam 1 and the recess 23 on the support unit 2; then the wing plate 11 of the track beam 1 and the recess 23 of the support unit 2 are connected by a bolt assembly to achieve rapid installation and fixation of the track beam 1 on the support unit 2.

[0091] Finally, after the installation of the track substructure and the track beam 1 is completed, a filling layer 5 is poured between the outer side of the support portion 22 and the bottom of the tunnel 3 to form a seal and reinforcement for the outermost connection between the support unit 2 and the bottom of the tunnel 3. The filling surface of the filling layer 5 is not higher than the top surface of the support block 21, and a drainage ditch extending along the longitudinal direction of the tunnel is provided on the filling layer 5, so that the liquid on the track structure flows into the drainage ditch and flows out along the drainage ditch.

[0092] The straddle-type monorail track structure of the utility model that can be quickly installed in a tunnel has a simple structural form, and each structural part is light in weight and convenient to construct. The construction of the overall track structure can be completed quickly, thereby shortening the construction period of the track structure and reducing the construction cost.

[0093] It is easy for those skilled in the art to understand that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A straddle-type monorail track structure that can be quickly installed in a tunnel, comprising a track beam and a track substructure disposed between the track beam and the bottom of the tunnel; characterized in that: The track substructure includes a plurality of support units arranged in sequence longitudinally; The support unit comprises a support block arranged below the track beam, and support parts are respectively arranged on two lateral sides of the support block; The bottom of the support block is connected to the bottom of the tunnel through a plurality of connectors, and the top of the support block is connected to the bottom of the track beam through a plurality of connectors; one end of the support portion is connected to the top of the support block, and the other end of the support portion is connected to the bottom of the tunnel through a plurality of connectors.

2. The straddle-type monorail track structure that can be quickly installed in a tunnel according to claim 1, characterized in that: A wing plate is provided on at least one side of the bottom of the track beam, and at least one side of the track beam is connected to the support block via a connecting piece provided on the wing plate; and / or A recessed portion for accommodating the bottom of the track beam is formed on the top of the support unit, and the support unit is connected to the track beam via a connecting piece arranged in the recessed portion.

3. The straddle-type monorail track structure that can be quickly installed in a tunnel according to claim 2, characterized in that: At least one connecting piece for connecting the ends of two longitudinally adjacent supporting units is respectively disposed at both ends of at least one longitudinal side surface of the supporting block and / or at least one longitudinal side surface of the supporting portion.

4. The straddle-type monorail track structure that can be quickly installed in a tunnel according to claim 3 is characterized in that: At least some of the connecting members are bolt assemblies; The bolt assembly comprises a screw rod, a connection hole provided on one of the two connection members, and a threaded sleeve provided on the other member, wherein the screw rod passes through the connection hole and is connected to the threaded sleeve; or The bolt assembly comprises a screw rod and connection holes respectively arranged on two connection members, and the screw rod passes through the two connection holes and is connected and fixed by a nut.

5. The straddle-type monorail track structure that can be quickly installed in a tunnel according to claim 4, characterized in that: The connection hole is arranged on the connection block of the connection member.

6. The straddle-type monorail track structure that can be quickly installed in a tunnel according to any one of claims 1 to 5, characterized in that: A first limiting member is provided between the bottom of the tunnel and the bottom of the support block and / or the end of the support portion away from the support block; and / or A second limiting member is arranged between two adjacent supporting units.

7. The straddle-type monorail track structure that can be quickly installed in a tunnel according to any one of claims 1 to 5, characterized in that: The track beam and / or the track substructure are prefabricated in sections.

8. The straddle-type monorail track structure that can be quickly installed in a tunnel according to any one of claims 1 to 5, characterized in that: A seismic isolation pad is provided at the joint between the track beam and the track substructure; and / or, A seismic isolation pad is provided at the joint between the track substructure and the tunnel bottom; and / or, A shock-isolating pad is provided at the joint between adjacent support units.

9. The straddle-type monorail track structure that can be quickly installed in a tunnel according to any one of claims 1 to 5, characterized in that: An elongated portion is disposed on at least one side of the top of the support block in the lateral direction, and one end of the support portion facing away from the bottom of the tunnel is connected to the elongated portion at an angle of 110° to 160°.

10. The straddle-type monorail track structure that can be quickly installed in a tunnel according to claim 9, characterized in that: A filling layer is also included, and the filling layer is filled between the outer side of the supporting part and the bottom of the tunnel.

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