Semi-assembly type high-speed maglev track beam and assembly method thereof

Abstract

The invention discloses a semi-fabricated high-speed maglev track beam and an assembling method thereof.The semi-fabricated high-speed maglev track beam comprises a propelling groove and a suspension groove and further comprises a bottom plate extending in the track direction and two rows of concrete prefabricated parts assembled on the bottom plate and distributed in the axial direction of the bottom plate in a mirror image mode, and the propelling groove is formed between the two rows of concrete prefabricated parts; a suspension groove is formed in the concrete prefabricated part; in the axial direction of the bottom plate, every two adjacent concrete prefabricated parts are spliced with each other; three rows of manholes are formed in the bottom plate, and each row of manholes extend in the axial direction of the bottom plate; wherein two rows of manholes are located below the two rows of concrete prefabricated parts respectively, and the other row of manholes are located in the groove bottom of the propelling groove. And the bottom of the suspension groove is provided with a channel which is opposite to and communicated with the corresponding access hole. The problems that in the prior art, a cast-in-place structure of a magnetic levitation track beam is too long in construction period, and a fabricated structure is low in precision and poor in mechanical continuity can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic levitation tracks, and in particular to a semi-assembled high-speed magnetic levitation track beam and an assembly method thereof. Background Art

[0002] The track beam is an important part of the maglev track. It is a beam or plate structure with a track functional surface, bearing the train load and transferring it to the supporting structure. In other words, the maglev track beam has the functions of both the beam and the track of the traditional railway. Compared with the operation of traditional rail trains, maglev trains have higher requirements for the accuracy of the track beam.

[0003] In the field of high-speed maglev, the distance between the train magnet and the magnet on the track beam directly affects the change of magnetic levitation force. In order to ensure the smooth development of lift and resistance when the vehicle floats and lands, and to ensure the driving comfort of the vehicle in the middle section of the line, very strict requirements are put forward for the construction accuracy of the traditional maglev track beam, which makes it difficult for the traditional cast-in-place construction process to meet the accuracy requirements. In the prior art, for the track beam of the maglev track, a large set of magnet modules are generally assembled inside to provide the forward driving force and the lift required for suspension for the vehicle above; this kind of maglev has the disadvantages of large volume of magnet modules and very difficult production and installation; in addition, with the continuous in-depth research on ultra-high-speed maglev track technology, in some non-railway transportation fields, the application of ultra-high-speed maglev technology has gradually begun to be considered, which requires the construction of test section tracks for a large number of engineering tests and verifications; however, the existing maglev track beam cannot install the magnet module of ultra-high-speed maglev technology, so it is not suitable for the use of ultra-high-speed maglev test section tracks.

[0004] Based on the above problems, the applicant took the lead in proposing a new maglev track beam structure, and applied for patents such as "track beam structure and forming method for ultra-high-speed maglev track test section" and "an assembled maglev track beam". However, as the research continued to deepen, the applicant found that the cast-in-place structure previously applied for was designed for the convenience of construction and had the defect of too long a construction period; and the base structure of the assembled structure previously applied for had defects, which easily led to insufficient structural stability, and also had defects such as too small component division, difficult to ensure assembly accuracy, and poor mechanical continuity. Therefore, it is necessary to continue to improve and optimize the construction technology of high-speed maglev track beams. Summary of the invention

[0005] The invention provides a semi-assembled high-speed maglev track beam and an assembly method thereof, so as to solve the problems in the prior art that the cast-in-place structure of the maglev track beam has a long construction period, a low precision of the assembled structure and poor mechanical continuity.

[0006] The present invention is achieved through the following technical solutions:

[0007] A semi-assembled high-speed maglev track beam comprises a propulsion groove, a suspension groove, a bottom plate extending in the track direction, and two rows of concrete precast parts assembled on the bottom plate and mirror-distributed along the axial direction of the bottom plate, wherein the propulsion groove is formed between the two rows of concrete precast parts, and the suspension groove is arranged on the concrete precast parts; along the axial direction of the bottom plate, two adjacent concrete precast parts are spliced ​​with each other;

[0008] Three rows of inspection holes are provided on the bottom plate, and each row of inspection holes extends axially along the bottom plate; two rows of inspection holes are respectively located below two rows of concrete prefabricated parts, and the other row of inspection holes is located at the bottom of the advancement groove; a channel is provided at the bottom of the suspension groove, which is opposite to and connected to the corresponding inspection holes.

[0009] Aiming at the problems of long construction period of cast-in-place structure of magnetic levitation track beam, low precision of assembled structure and poor mechanical continuity in the prior art, the present invention first proposes a semi-assembled high-speed magnetic levitation track beam, in which the propulsion groove and suspension groove are both existing structures required by the magnetic levitation track beam. The bottom plate extends along the track direction. It should be noted that the axial direction in this application refers to the direction extending along the track; the transverse direction in this application refers to the direction perpendicular to the track extension in the horizontal plane. In this application, the concrete precast is U-shaped, the suspension groove is directly precast on the concrete precast, and the propulsion groove is between the two rows of concrete precast. The concrete precast is assembled and connected with the bottom plate, and the adjacent concrete precasts are spliced ​​along the axial direction. A row of inspection holes is opened below the two rows of concrete precast, and a row of inspection holes is also opened at the bottom of the propulsion groove, so a total of three rows of inspection holes are opened on the bottom plate; and because the concrete precast is U-shaped in this application, it is also necessary to open a channel at the bottom of the suspension groove to connect the inspection holes below the channel.

[0010] The bottom plate in this application can be cast on site and the concrete prefabricated parts can be prefabricated, so this application belongs to a semi-assembled structure; compared with the fully cast-in-place construction process in the prior art, it can significantly reduce the difficulty of on-site operations and shorten the construction period; compared with the fully assembled structure in the prior art, this application has only one prefabricated component, namely the concrete prefabricated part, which is conducive to reducing the difficulty of assembly, improving assembly accuracy, and thus improving the mechanical continuity of the track beam. In addition, this application optimizes the bottom structure, and the bottom plate is in the shape of a flat plate, which can reduce the difficulty of setting up the template on site and facilitate rapid casting and molding on site.

[0011] Furthermore, an assembly block is fixed to the bottom of the precast concrete part, and an assembly groove matching the assembly block is provided on the top surface of the bottom plate; the assembly block is located below the suspension groove, and the assembly block is detachably connected to the assembly groove.

[0012] When the precast concrete parts need to be assembled, they are hoisted above the bottom plate, the assembly blocks are aligned with the assembly slots, the precast concrete parts are lowered, and then the assembly blocks and the assembly slots are connected.

[0013] Furthermore, a plurality of first connection holes are provided at the bottom of the suspension groove and penetrate to the bottom of the assembly block, and a first internally threaded sleeve corresponding to the first connection holes is embedded in the bottom of the assembly groove; the assembly block is connected to the assembly groove by a first bolt matching the first internally threaded sleeve.

[0014] In this solution, the first connecting holes penetrate the concrete prefabricated part and the assembly block in sequence from the bottom of the suspension groove; when the assembly block is located in the assembly groove, each first connecting hole is opposite to a first internally threaded sleeve, and a first bolt is screwed into it and tightened, so that the assembly block can be locked in the longitudinal direction to realize the assembly between the concrete prefabricated part and the base plate.

[0015] Furthermore, it also includes pads located on both lateral sides of the assembly block, the pads are detachably connected to the assembly block and / or the prefabricated concrete part; the bottom height of the pads is equal to or lower than the bottom height of the assembly block.

[0016] The precast concrete parts are the core part of the high-speed maglev track beam of the present application. The end faces thereof need to be assembled with the other precast concrete parts, and the sides thereof may need to be installed with the other components at a later stage. Therefore, during the transportation process of the precast parts, they should be placed vertically with the bottom facing downward. However, the precast concrete parts in the present application have assembly blocks at the bottom, which are very easy to wear during transportation, and may even interfere with the assembly work on site in serious cases. For this reason, the present solution also provides pads on both lateral sides of the assembly blocks to temporarily connect the pads with the assembly blocks and / or the precast concrete parts; since the bottom height of the pads is equal to or lower than the bottom height of the assembly blocks, the pads can be used to protect the assembly blocks during vertical transportation, thereby reducing the degree of wear of the assembly blocks and ensuring that assembly is completed quickly on site.

[0017] Furthermore, second internally threaded sleeves are embedded on both lateral sides of the assembly block, and a second connecting hole matching the second internally threaded sleeve is provided on the cushion block; the cushion block and the assembly block are connected via second bolts matching the second internally threaded sleeve.

[0018] In this solution, the second bolt is used to realize the detachable connection between the cushion block and the assembly block. When the cushion block is needed, the second bolt is screwed into the second connection hole until it completely enters the second internal threaded sleeve, and then the second bolt is tightened; when the cushion block is not needed, the second bolt can be removed.

[0019] Furthermore, third connecting holes are preset on both lateral sides of the base plate, and the third connecting holes are connected to the assembly groove and are used for the second bolt to pass through; when the assembly block is located in the assembly groove, the third connecting hole is opposite to the second internal threaded sleeve.

[0020] When the present solution is assembled on site, the second bolt previously removed from the cushion block can be retained in situ; after the assembly block enters the assembly groove, the second bolt is screwed into the third connection holes on both sides of the base plate, and the second bolt is re-entered into the second internally threaded sleeve in the same side direction and tightened, thereby locking the assembly block in the lateral direction. By repeatedly utilizing the second bolt and the second internally threaded sleeve, the assembly stability between the prefabricated concrete part and the base plate can be further improved.

[0021] Furthermore, it also includes a plurality of grouting channels located inside the assembly block, and the grouting channels correspond one-to-one to the first connecting holes; one end of the grouting channel is connected to the inside of the second internal threaded sleeve, and the other end is connected to the corresponding first connecting hole.

[0022] This solution achieves communication between the second internally threaded sleeve and each first connecting hole through a plurality of grouting channels; before the second bolt is screwed into the third connecting hole, grouting can be performed through the third connecting hole first, so that concrete is squeezed into the second internally threaded sleeve and then enters the first connecting hole through each grouting channel, and then the second bolt is immediately installed. After the concrete solidifies, the first bolt and the second bolt can be simultaneously consolidated through a single grouting operation, thereby further improving the structural stability and mechanical continuity of the present application.

[0023] Furthermore, the top of the precast concrete part has a positioning surface, which is located on one side of the suspension groove toward the transverse outer side of the base plate; along the axial direction of the base plate, a positioning groove is provided at one end of the positioning surface and a positioning protrusion is provided at the other end, and the positioning groove and the positioning protrusion match each other.

[0024] Between two adjacent concrete precast parts, the assembly is achieved by making the positioning protrusion enter the positioning groove; wherein the positioning groove and the positioning protrusion are both arranged on the top surface, which can ensure that there is no interference with the hoisting assembly of the present application. In addition, those skilled in the art should understand that the top surface of the maglev track beam has multiple surfaces, and the present application uses a surface located on one side of the suspension groove toward the lateral outer side of the bottom plate as the positioning surface; there is no need to install the upper track on the top surface located on the outer side of the suspension groove, so using this side surface as the positioning surface can avoid interference with subsequent track construction.

[0025] A method for assembling a semi-assembled high-speed maglev track beam comprises: casting the base plate in situ; sequentially lifting each precast concrete part, assembling the precast concrete parts to the base plate, and splicing two adjacent precast concrete parts to each other.

[0026] Further, the method of assembling the precast concrete parts onto the base plate comprises:

[0027] When the precast concrete parts leave the factory, pads are connected to the lateral sides of the assembly blocks at the bottom and transported to the job site;

[0028] Lift the concrete precast parts at the work site until the pads are off the ground and remove the pads;

[0029] Lower the assembly block into the corresponding assembly groove on the top surface of the base plate;

[0030] Screw the first bolt into the first connecting hole in the suspension groove until the first bolt enters the first internal thread sleeve pre-buried at the bottom of the assembly groove, and tighten the first bolt;

[0031] Insert a grouting pipe into the third connecting hole on the outside of the bottom plate and into the second internally threaded sleeve on the side of the assembly block, seal the end of the third connecting hole, and inject concrete inward through the grouting pipe until the grouting pressure reaches a preset pressure;

[0032] Unblock the end of the third connecting hole, screw the second bolt into the third connecting hole until the second bolt enters the second internal threaded sleeve, and tighten the second bolt.

[0033] The preset pressure can be adaptively set according to the specific number and length of the grouting channels, so as to ensure that the concrete fully enters each grouting channel as much as possible within the internal pressure tolerance range of the assembly block.

[0034] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0035] 1. The semi-assembled high-speed maglev track beam and its assembly method of the present invention can significantly reduce the difficulty of on-site operations and shorten the construction period.

[0036] 2. The semi-assembled high-speed maglev track beam and its assembly method of the present invention are conducive to reducing assembly difficulty, improving assembly accuracy, and further improving the mechanical continuity performance of the track beam.

[0037] 3. The semi-assembled high-speed maglev track beam and its assembly method of the present invention optimize the bottom structure of the split maglev track beam. The bottom plate is in the shape of a flat plate, which can reduce the difficulty of setting up the template on site and facilitate rapid casting and molding on site.

[0038] 4. The semi-assembled high-speed maglev track beam and its assembly method of the present invention can protect the assembly blocks through the pads during vertical transportation, reduce the wear of the assembly blocks, and ensure that the assembly is completed quickly on site.

[0039] 5. The semi-assembled high-speed maglev track beam and the assembly method thereof of the present invention can further improve the assembly stability between the concrete prefabricated part and the base plate by repeatedly utilizing the second bolt and the second internal threaded sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0041] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention;

[0042] Figure 2 It is a structural schematic diagram of a bottom plate in a specific embodiment of the present invention;

[0043] Figure 3 It is a transverse cross-sectional view of the inspection hole in a specific embodiment of the present invention;

[0044] Figure 4 It is a transverse cross-sectional view of the assembly groove in a specific embodiment of the present invention;

[0045] Figure 5 It is a structural schematic diagram of a concrete prefabricated part in a specific embodiment of the present invention.

[0046] Marks and corresponding parts names in the attached drawings:

[0047] 1-base plate, 2-inspection hole, 3-precast concrete part, 4-advance groove, 5-suspension groove, 6-channel, 7-assembly block, 8-assembly groove, 9-first internal threaded sleeve, 10-first bolt, 11-pad, 12-second internal threaded sleeve, 13-second bolt, 14-third connecting hole, 15-grouting channel, 16-positioning surface, 17-positioning groove, 18-positioning protrusion, 19-first connecting hole. DETAILED DESCRIPTION

[0048] In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the examples and the accompanying drawings. The schematic embodiments of the present invention and the description thereof are only used to explain the present invention and are not intended to limit the present invention. In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application.

[0049] Embodiment 1:

[0050] like Figures 1 to 3 A semi-assembled high-speed maglev track beam is shown, comprising a propulsion groove 4, a suspension groove 5, a bottom plate 1 extending along the track direction, and two rows of precast concrete parts 3 assembled on the bottom plate 1 and distributed in a mirror image along the axial direction of the bottom plate 1, wherein the propulsion groove 4 is formed between the two rows of precast concrete parts 3, and the suspension groove 5 is arranged on the precast concrete parts 3; along the axial direction of the bottom plate 1, two adjacent precast concrete parts 3 are spliced ​​with each other;

[0051] Three rows of inspection holes 2 are provided on the bottom plate 1, and each row of inspection holes 2 extends axially along the bottom plate 1; two rows of inspection holes 2 are respectively located below two rows of precast concrete parts 3, and the other row of inspection holes 2 is located at the bottom of the advancement groove 4; a channel 6 is provided at the bottom of the suspension groove 5, which is opposite to and connected to the corresponding inspection holes 2.

[0052] In a more preferred embodiment, the precast concrete element 3 is as follows Figure 5 As shown, a positioning surface 16 is provided on the top thereof, and the positioning surface 16 is located on one side of the suspension groove 5 toward the transverse outer side of the bottom plate 1; along the axial direction of the bottom plate 1, a positioning groove 17 is provided at one end of the positioning surface 16, and a positioning protrusion 18 is provided at the other end, and the positioning groove 17 and the positioning protrusion 18 match each other.

[0053] Embodiment 2:

[0054] A semi-assembled high-speed maglev track beam, based on embodiment 1, as Figures 1 to 4 As shown, an assembly block 7 is fixed to the bottom of the concrete prefabricated part 3, and an assembly groove 8 matching the assembly block 7 is provided on the top surface of the bottom plate 1; the assembly block 7 is located below the suspension groove 5, and the assembly block 7 is detachably connected to the assembly groove 8. In this embodiment, the assembly block 7 and the assembly groove 8 are both square.

[0055] The assembly groove 8 and the inspection hole 2 in this embodiment are arranged axially staggered on the surface of the bottom plate 1 without interfering with each other.

[0056] It should be noted that in Figure 4 Two prefabricated concrete parts 3 are shown in FIG. 1 , wherein the prefabricated concrete part 3 on the left has been assembled with the base plate 1 , and the prefabricated concrete part 3 on the right has not been assembled yet.

[0057] The bottom of the suspension groove 5 is provided with a plurality of first connection holes 19 penetrating to the bottom of the assembly block 7, and the bottom of the assembly groove 8 is pre-embedded with first internally threaded sleeves 9 corresponding to the first connection holes 19 one by one; the assembly block 7 is connected to the assembly groove 8 by a first bolt 10 matching the first internally threaded sleeve 9.

[0058] It also includes pads 11 located on both lateral sides of the assembly block 7 , and the pads 11 are detachably connected to the assembly block 7 and / or the prefabricated concrete component 3 ; the bottom height of the pads 11 is lower than the bottom height of the assembly block 7 .

[0059] The second internally threaded sleeves 12 are embedded in both lateral sides of the assembly block 7 , and the cushion block 11 is provided with a second connecting hole matching the second internally threaded sleeve 12 ; the cushion block 11 is connected to the assembly block 7 via a second bolt 13 matching the second internally threaded sleeve 12 .

[0060] The third connecting holes 14 are preset on both lateral sides of the base plate 1 , and the third connecting holes 14 are connected to the assembly groove 8 and are used for the second bolt 13 to pass through; when the assembly block 7 is located in the assembly groove 8 , the third connecting holes 14 are opposite to the second internally threaded sleeve 12 .

[0061] It also includes a plurality of grouting channels 15 located inside the assembly block 7 , and the grouting channels 15 correspond one-to-one to the first connecting holes 19 ; one end of the grouting channel 15 is connected to the inside of the second internally threaded sleeve 12 , and the other end is connected to the corresponding first connecting hole 19 .

[0062] Embodiment 3:

[0063] An assembly method of a semi-assembled high-speed maglev track beam as described in Embodiment 1 or 2 comprises the following steps:

[0064] The cast-in-place base plate 1 is arranged by the template to obtain the assembly groove 8 and the third connecting hole 14, and the first internal threaded sleeve 9 is embedded in advance;

[0065] The precast concrete parts 3 are hoisted in sequence, assembled onto the base plate 1 , and two adjacent precast concrete parts 3 are spliced ​​together.

[0066] In this embodiment, the method of assembling the precast concrete part 3 onto the base plate 1 includes:

[0067] When the prefabricated concrete part 3 is formed and shipped out of the factory, the cushion blocks 11 are connected to the assembly block 7 on both sides of the horizontal direction by the second bolts 13 and then transported to the work site;

[0068] The prefabricated concrete part 3 is lifted at the work site until the cushion block 11 is off the ground, and the second bolt 13 is removed for standby use. The cushion block 11 can be recycled;

[0069] The assembly block 7 is lowered into the assembly groove 8 corresponding to the top surface of the bottom plate 1 by a crane; during the lowering process, if there is a prefabricated concrete part 3 that has been assembled in place next to the current prefabricated concrete part 3, the positioning protrusion 18 of the current prefabricated concrete part 3 is made to enter the positioning groove 17 of the prefabricated concrete part 3 that has been assembled in place next to it, or the positioning groove 17 of the current prefabricated concrete part 3 is gradually covered outside the positioning protrusion 18 of the prefabricated concrete part 3 that has been assembled in place next to it;

[0070] The staff enters the suspension tank 5, screws the first bolt 10 into the first connecting hole 19 in the suspension tank 5, until the first bolt 10 enters the first internal thread sleeve 9 embedded in the bottom of the assembly tank 8, and tightens the first bolt 10 with a nut or a nut;

[0071] Insert the grouting pipe into the third connecting hole 14 on the outside of the bottom plate 1 and into the second internal threaded sleeve 12 on the side of the assembly block 7; seal the outer end of the third connecting hole 14 with a plug without interfering with the normal operation of the grouting pipe, and inject concrete into the grouting pipe until the grouting pressure reaches the preset pressure;

[0072] The blockage of the outer end of the third connecting hole 14 is released, and the second bolt 13 previously disassembled and reserved is screwed into the third connecting hole 14 until the second bolt 13 enters the second internally threaded sleeve 12 , and the second bolt 13 is tightened.

[0073] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0074] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In addition, the term "connected" used in this article can be directly connected or indirectly connected via other components without special explanation.

Claims

1. A semi-assembled high-speed maglev track beam, comprising a propulsion groove (4) and a suspension groove (5), characterized in that: It also comprises a base plate (1) extending in the direction of the track, and two rows of prefabricated concrete parts (3) mounted on the base plate (1) and distributed in a mirror image along the axial direction of the base plate (1), wherein the propulsion groove (4) is formed between the two rows of prefabricated concrete parts (3), and the suspension groove (5) is arranged on the prefabricated concrete parts (3); along the axial direction of the base plate (1), two adjacent prefabricated concrete parts (3) are spliced ​​with each other; Three rows of inspection holes (2) are provided on the bottom plate (1), and each row of inspection holes (2) extends axially along the bottom plate (1); two rows of inspection holes (2) are respectively located below two rows of prefabricated concrete parts (3), and another row of inspection holes (2) is located at the bottom of the advancement groove (4); and a channel (6) is provided at the bottom of the suspension groove (5) and is opposite to and connected to the corresponding inspection holes (2).

2. A semi-assembled high-speed maglev track beam according to claim 1, characterized in that: An assembly block (7) is fixed to the bottom of the prefabricated concrete part (3), and an assembly groove (8) matching the assembly block (7) is provided on the top surface of the bottom plate (1); the assembly block (7) is located below the suspension groove (5), and the assembly block (7) and the assembly groove (8) are detachably connected.

3. The semi-assembled high-speed maglev track beam according to claim 2, characterized in that: The bottom of the suspension groove (5) is provided with a plurality of first connection holes (19) penetrating to the bottom of the assembly block (7); the bottom of the assembly groove (8) is pre-embedded with first internally threaded sleeves (9) corresponding one to one with the first connection holes (19); the assembly block (7) and the assembly groove (8) are connected via first bolts (10) matching the first internally threaded sleeves (9).

4. The semi-assembled high-speed maglev track beam according to claim 3, characterized in that: It also includes pads (11) located on both lateral sides of the assembly block (7), the pads (11) being detachably connected to the assembly block (7) and / or the prefabricated concrete component (3); the bottom surface height of the pads (11) is equal to or lower than the bottom surface height of the assembly block (7).

5. The semi-assembled high-speed maglev track beam according to claim 4, characterized in that: A second internally threaded sleeve (12) is pre-buried on both lateral sides of the assembly block (7); a second connecting hole matching the second internally threaded sleeve (12) is provided on the cushion block (11); the cushion block (11) and the assembly block (7) are connected via a second bolt (13) matching the second internally threaded sleeve (12).

6. The semi-assembled high-speed maglev track beam according to claim 5, characterized in that: The base plate (1) is provided with third connection holes (14) on both lateral sides, the third connection holes (14) being connected to the assembly groove (8) and used for the second bolt (13) to pass through; when the assembly block (7) is located in the assembly groove (8), the third connection holes (14) are opposite to the second internally threaded sleeve (12).

7. The semi-assembled high-speed maglev track beam according to claim 6, characterized in that: It also includes a plurality of grouting channels (15) located inside the assembly block (7), wherein the grouting channels (15) correspond one-to-one to the first connecting holes (19); one end of the grouting channel (15) is connected to the inside of the second internally threaded sleeve (12), and the other end is connected to the corresponding first connecting hole (19).

8. The semi-assembled high-speed maglev track beam according to claim 1, characterized in that: The top of the prefabricated concrete part (3) is provided with a positioning surface (16), and the positioning surface (16) is located on one side of the suspension groove (5) facing the transverse outer side of the bottom plate (1); along the axial direction of the bottom plate (1), a positioning groove (17) is provided at one end of the positioning surface (16), and a positioning protrusion (18) is provided at the other end, and the positioning groove (17) and the positioning protrusion (18) match each other.

9. A method for assembling a semi-assembled high-speed maglev track beam according to any one of claims 1 to 8, characterized in that: include: The base plate (1) is cast in situ; each precast concrete part (3) is lifted in sequence, the precast concrete part (3) is assembled onto the base plate (1), and two adjacent precast concrete parts (3) are spliced ​​together.

10. The assembly method according to claim 9, characterized in that: The method for assembling a precast concrete part (3) onto a base plate (1) comprises: When the prefabricated concrete part (3) leaves the factory, pads (11) are connected to the lateral sides of the assembly block (7) at the bottom and transported to the work site; Lifting the prefabricated concrete component (3) at the work site until the cushion block (11) is off the ground, and removing the cushion block (11); Lower the assembly block (7) into the corresponding assembly groove (8) on the top surface of the base plate (1); Screw the first bolt (10) into the first connecting hole (19) in the suspension groove (5) until the first bolt (10) enters the first internal thread sleeve (9) pre-buried at the bottom of the assembly groove (8), and tighten the first bolt (10); Inserting a grouting pipe into a third connecting hole (14) on the outside of the bottom plate (1) and into a second internally threaded sleeve (12) on the side of the assembly block (7), sealing the end of the third connecting hole (14), and injecting concrete inwardly through the grouting pipe until the grouting pressure reaches a preset pressure; The blocking of the end of the third connecting hole (14) is released, and the second bolt (13) is screwed into the third connecting hole (14) until the second bolt (13) enters the second internally threaded sleeve (12), and the second bolt (13) is tightened.

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