Track beam structure for ultra-high-speed maglev experimental track section and forming method therefor

Abstract

Disclosed in the present invention are a track beam structure for an ultra-high-speed maglev experimental track section and a forming method therefor. The track beam structure comprises a lower foundation and a beam-rail assembly located on the lower foundation; the beam-rail assembly comprises a propulsion channel and levitation channels located on both lateral sides of the propulsion channel, and the levitation channels are parallel to the axis of the propulsion channel; and the propulsion channel is used for mounting a propulsion magnet module, and the levitation channels are used for mounting levitation magnet modules. The present invention aims to provide the track beam structure for an ultra-high-speed maglev experimental track section and the forming method therefor, so as to solve the problem in the prior art that maglev track beams are not suitable for use in ultra-high-speed maglev experimental track sections, achieving the purpose of providing a matched maglev track beam for magnet modules used in the ultra-high-speed maglev technology.

Description

Track beam structure and its forming method for ultra-high-speed maglev track test section Technical Field

[0001] This invention relates to the field of maglev tracks, and more specifically to track beam structures and their forming methods for ultra-high-speed maglev track test sections. Background Technology

[0002] The track beam is a crucial component of the maglev track, consisting of a beam or slab structure that functions as a track surface, bearing the train load and transferring it to the supporting structure. In other words, the maglev track beam performs the functions of both the beam and the track in a traditional railway. Compared to conventional rail train operation, maglev trains require extremely high precision from 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 maglev force. In order to ensure the smooth development of lift and resistance when the vehicle is taking off and landing, 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 traditional maglev track beams, which makes it difficult for traditional cast-in-place construction technology to meet the accuracy requirements.

[0004] In existing technologies, the track beams of maglev tracks typically house a large set of magnet modules to simultaneously provide forward driving force and lift for the vehicle above. This maglev method suffers from drawbacks such as the excessive size of the magnet modules and the significant difficulties in their manufacture and installation. Furthermore, with the deepening research into ultra-high-speed maglev track technology, its application is gradually being considered in some non-railway transportation fields. This necessitates the construction of test tracks for extensive engineering testing and verification. However, existing maglev track beams cannot accommodate the magnet modules for ultra-high-speed maglev technology, thus making them unsuitable for use as test tracks for ultra-high-speed maglev. Summary of the Invention

[0005] The purpose of this invention is to provide a track beam structure and its forming method for a test section of ultra-high-speed maglev track, so as to solve the problem that the existing maglev track beams are not suitable for use in the test section track of ultra-high-speed maglev, and to achieve the goal of providing a matching maglev track beam for the magnet module of ultra-high-speed maglev technology.

[0006] This invention is achieved through the following technical solution:

[0007] The track beam structure for the test section of ultra-high-speed maglev track includes a lower foundation and a beam-track assembly located on the lower foundation. The beam-track assembly includes a propulsion groove and suspension grooves located on both sides of the propulsion groove. The suspension grooves are parallel to the axis of the propulsion groove. The propulsion groove is used to install propulsion magnet modules, and the suspension grooves are used to install suspension magnet modules.

[0008] To address the problem that existing maglev track beams are unsuitable for use in test sections of ultra-high-speed maglev tracks, this invention first proposes a track beam structure for ultra-high-speed maglev track test sections. This track beam structure includes upper and lower distributed beam-rail assemblies and a lower foundation, wherein the beam-rail assemblies are fixedly mounted on the lower foundation. In this application, the lower foundation primarily functions as the "beam" of the track beam, while the beam-rail assemblies primarily function as the "rail" of the track beam.

[0009] In the beam-track assembly, two suspension troughs are located on either side of the propulsion trough, extending in the same direction. The propulsion trough is used to install the propulsion magnet module, and the suspension trough is used to install the suspension magnet module. This provides different installation spaces for magnet modules with different functions, solving the problems of installation, use, and maintenance caused by the excessively large size of the lower magnetic module in existing maglev technologies. By dividing the magnet module in the track beam into one propulsion magnet module and two suspension magnet modules, it is adapted to the use of ultra-high-speed maglev track technology, especially suitable for use in certain special transport conditions and for ultra-high-speed maglev test track sections. This provides a matching maglev track beam for the magnet modules of ultra-high-speed maglev technology, filling a gap in existing technology.

[0010] It should be noted that the propulsion magnet module and levitation magnet module described in this application are corresponding magnet modules designed and installed according to specific working conditions. Their specific structures are not limited in this application. They can be understood as magnet modules after adaptive adjustments to the shape, size or structure of magnet modules in conventional magnetic levitation technology. Their principles are the same as those of magnet modules in conventional magnetic levitation technology. Their functions are to provide the corresponding magnetic field according to specific working conditions. Those skilled in the art can make adaptive designs according to specific working conditions.

[0011] The beam-rail assembly and the sub-foundation in this application can be manufactured by cast-in-place or prefabrication, and the specific manufacturing method is not limited here.

[0012] Furthermore, the beam-rail assembly includes two first concrete components and two second concrete components located between the two first concrete components; the two second concrete components form the propulsion groove, and the first concrete components and the second concrete components located on the same side of the propulsion groove form the suspension groove.

[0013] In this design, the first concrete component is located on the outer side of the beam-rail assembly, and the second concrete component is located in the middle of the beam-rail assembly. The space between the two second concrete components forms the propulsion groove in this application, which is used to install the propulsion magnet module. There is a set of first concrete components and second concrete components on each side of the propulsion groove. The suspension groove in this application is formed between the first concrete component and the second concrete component on the same side of the propulsion groove, which is used to install the suspension magnet module.

[0014] Furthermore, the two first concrete components and the two second concrete components are symmetrically distributed with respect to the axis of the propulsion groove. The transverse outer wall of the first concrete component is coplanar with the transverse outer wall of the lower foundation; the transverse inner wall of the second concrete component is coplanar with the groove wall of the propulsion groove.

[0015] This solution allows the transverse sidewalls of the track beam structure to have a flat and continuous surface, while also ensuring that the walls of the propulsion trough are flat and continuous, thereby reducing the risk of jamming that may be encountered during the positioning and installation of the maglev track beam.

[0016] In this application, "lateral" refers to the wind direction perpendicular to the axis of the track beam.

[0017] Furthermore, the top of the second concrete member is set in a stepped shape that gradually decreases in the lateral outward direction. This shape facilitates cooperation with the transport equipment above and ensures the lateral stability of the transport equipment during ultra-high-speed operation.

[0018] Furthermore, the bottom of the suspension trough is a widening area, the top of the widening area is connected to the bottom of the suspension trough, and the widening area includes a widening portion whose lateral width gradually increases from top to bottom.

[0019] This solution features a widened area at the bottom of the suspension trough, which better meets the installation requirements of the suspension magnet module. At the same time, since the suspension trough is relatively shallow, the widened area reduces the interference of debris, water accumulation, and other factors that may occur inside the suspension trough on the suspension magnet module.

[0020] Furthermore, a deep groove is formed on the top surface of the lower foundation, the long axis of the deep groove is parallel to the axis of the propulsion groove, and the top end of the deep groove is connected to the bottom end of the propulsion groove; the transverse side walls of the deep groove are coplanar with the inner side walls of the two second concrete components respectively.

[0021] The deepened groove in this design can essentially be understood as creating a groove whose bottom is located on the top surface of the lower foundation, and then deepening the groove downwards, with the deepened area entirely within the lower foundation. The purpose of deepening the groove in the lower foundation is to address the fact that the propulsion magnet module needs to provide the greater magnetic force required for ultra-high-speed maglev technology; therefore, its volume is larger than that of the levitation magnet module. Deepening the groove facilitates the installation of the propulsion magnet module and allows for greater depth to reduce potential interference from debris, water accumulation, etc.

[0022] Furthermore, the bottom of the deepening groove is provided with several first through holes distributed along the axial direction, and the bottom of the suspension groove is provided with several second through holes distributed along the axial direction.

[0023] In this design, both the first and second through holes are connected to the bottom surface of the lower foundation, which can effectively reduce stress concentration inside the lower foundation. At the same time, it helps to ensure the balance of temperature, humidity, and pressure inside and outside the propulsion channel and suspension channel, and is more conducive to simulating actual wilderness working conditions on the track of the magnetic levitation test section.

[0024] The method for forming a track beam structure based on this application includes the following steps:

[0025] S1. Excavate the track beam foundation pit, locate and install two side formworks in the foundation pit, so that the foundation pit space remains at both ends of the side formwork in the axial direction;

[0026] S2. Install a lower module that matches the lower foundation between the two side molds;

[0027] S3. Grout the lower module and demold the lower module after the concrete has initially set to obtain the lower foundation.

[0028] S4. Between the two side molds and on the lower foundation, install the upper module that matches the beam-rail assembly;

[0029] S5. Inject grout into the upper module and demold the upper module after the concrete has initially set.

[0030] S6. Backfilling of the foundation pit.

[0031] Furthermore, the lower module includes: a lower end mold detachably connected to both ends of the two side molds along the axial direction, two basic partition molds located between the two side molds, and a first L-shaped mold fixed to the top of the basic partition mold. The basic partition mold has several channels with open bottoms and is parallel to the side molds. The first L-shaped mold extends laterally outward from the corresponding basic partition mold.

[0032] It also includes a first occupant cylinder fixedly connected between two base partition molds, and a plurality of first occupant cylinders are evenly distributed along the axial direction between the two base partition molds; the first occupant cylinders are at the same height as the base partition molds, and the top height of the first occupant cylinders is lower than the top height of the first L-shaped mold;

[0033] It also includes a second spacer cylinder located between the base partition mold and the side mold on the same side, the second spacer cylinder being the same height as the first L-shaped mold.

[0034] In this design, the lower end molds are located at both axial ends of the maglev track beam. The foundation partition molds are used to distinguish the different areas corresponding to the upper propulsion trough and suspension trough. The bottom of the channel above is open, which facilitates the rapid and smooth filling of the internal space of the lower module during concrete pouring. The first L-shaped mold includes two mutually perpendicular surfaces. One surface, which is directly connected to the foundation partition mold, is perpendicular to the foundation partition mold and extends laterally outward, while the other surface is parallel to the foundation partition mold and extends upward. This arrangement allows the two first L-shaped molds to jointly form the bottom structure of the middle propulsion trough of the maglev track beam (because the depth of the propulsion trough is greater than that of the suspension trough), and it also provides a positioning reference for the installation of the propulsion trough mold in the upper module, which is beneficial to ensuring the continuity of the two pouring operations. The lateral outward of the foundation partition mold refers to the side of the foundation partition mold that is away from the direction of the other foundation partition mold in the direction perpendicular to the axial direction.

[0035] Furthermore, the upper module includes an upper end mold detachably connected to both ends of the two side molds along their axial direction, two propulsion groove molds located between the two side molds, a first suspension groove mold and a second suspension groove mold located between the propulsion groove mold and the side molds on the same side; the propulsion groove mold, the first suspension groove mold and the second suspension groove mold are all parallel to the side molds.

[0036] In the upper module, the upper end module is located at both ends of the axial direction of the maglev track beam. Two propulsion slot modules are used to form propulsion slots, and the first suspension slot module and the second suspension slot module cooperate with each other to form a suspension slot.

[0037] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0038] 1. The present invention relates to a track beam structure and its forming method for a test section of an ultra-high-speed maglev track, which can provide different installation spaces for magnet modules with different functions, and can solve the problems of installation, use and maintenance caused by the excessively large volume of the lower magnetic module in the existing maglev technology.

[0039] 2. The present invention relates to a track beam structure and its forming method for ultra-high-speed maglev track test sections, which can be adapted to the use of ultra-high-speed maglev track technology, especially suitable for use in ultra-high-speed maglev test sections under certain special transport conditions, thereby providing a matching maglev track beam for the magnet module of ultra-high-speed maglev technology, filling the gap in the existing technology.

[0040] 3. The present invention relates to the track beam structure and its forming method for the test section of ultra-high-speed maglev track. The lower foundation is poured first, and the beam-track assembly is poured after ensuring load-bearing stability. This allows the load-bearing area of ​​the maglev track beam and the track area to be formed independently but also to be mutually fixed and dependent. This can reduce the risks of mutual interference, concrete delamination or layering that may occur when the load-bearing area and the track area of ​​the maglev track beam are cast in situ at the same time, while also satisfying the integrity of the maglev track beam.

[0041] 4. The present invention relates to the track beam structure and its forming method for the ultra-high-speed maglev track test section, which can effectively reduce the stress concentration phenomenon of the track beam, and at the same time help to ensure the balance of internal and external temperature, humidity, pressure, etc., and is more conducive to simulating the actual wilderness working conditions of the maglev test section track. Attached Figure Description

[0042] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0043] Figure 1 is a structural schematic diagram of a specific embodiment of the present invention;

[0044] Figure 2 is a cross-sectional view of a specific embodiment of the present invention;

[0045] Figure 3 is an exploded view of the lower module in a specific embodiment of the present invention;

[0046] Figure 4 is a side view of the lower module in operation in a specific embodiment of the present invention;

[0047] Figure 5 is a partial schematic diagram of the lower module in a specific embodiment of the present invention;

[0048] Figure 6 is a magnified view of part A in Figure 3;

[0049] Figure 7 is a side view of the upper module in operation in a specific embodiment of the present invention;

[0050] Figure 8 is a schematic diagram of the connection structure between the first suspension trough mold and the inclined mold in a specific embodiment of the present invention.

[0051] The markings and corresponding component names in the attached diagram are as follows: 1-Side mold, 2-Lower end mold, 3-Foundation partition mold, 4-First L-shaped mold, 5-Propulsion groove mold, 6-First suspension groove mold, 7-First occupier cylinder, 8-Second occupier cylinder, 9-First positioning protrusion, 10-Second positioning protrusion, 11-Bolt, 12-Internal top mold, 13-Lower top mold, 14-First through groove, 15-Second through groove, 16-Grouting hole, 17-Second suspension groove mold, 18-Inclined mold, 19-Bearing 20-Positioning block, 21-Second threaded through hole, 22-Threaded blind hole, 23-Holding part, 24-Sleeve mounting hole, 25-Insertion hole, 26-Second L-shaped mold, 27-Channel, 28-Sleeve, 29-Lower foundation, 30-Propulsion groove, 31-Suspension groove, 32-Deepening groove, 33-First concrete component, 34-Second concrete component, 35-Wideened area, 36-First through hole, 37-Second through hole. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0053] Example 1:

[0054] The track beam structure for the ultra-high-speed maglev track test section, as shown in Figures 1 and 2, includes a lower foundation 29 and a beam-track assembly located on the lower foundation 29. Those skilled in the art should understand that the dashed lines in Figures 1 and 2 are schematic lines used to separate the lower foundation 29 from the beam-track assembly and do not represent any entity or meaning.

[0055] The beam-rail assembly in this embodiment includes a propulsion groove 30 and a suspension groove 31 located on both sides of the propulsion groove 30. The suspension groove 31 is parallel to the axis of the propulsion groove 30. The propulsion groove 30 is used to install the propulsion magnet module, and the suspension groove 31 is used to install the suspension magnet module.

[0056] The beam-rail assembly also includes two first concrete components 33 and two second concrete components 34 located between the two first concrete components 33; the two second concrete components 34 form a propulsion groove 30, and the first concrete components 33 and the second concrete components 34 located on the same side of the propulsion groove 30 form a suspension groove 31.

[0057] The two first concrete components 33 and the two second concrete components 34 are symmetrically distributed with respect to the axis of the propulsion groove 30; the transverse outer wall of the first concrete component 33 is coplanar with the transverse outer wall of the lower foundation 29; the transverse inner wall of the second concrete component 34 is coplanar with the groove wall of the propulsion groove 30.

[0058] The top of the second concrete member 34 is set in a stepped shape that gradually decreases in the lateral outward direction.

[0059] The bottom of the suspension tank 31 is a widening area 35, the top of the widening area 35 is connected to the bottom of the suspension tank 31, and the widening area 35 includes a widening part whose lateral width gradually increases from top to bottom.

[0060] A deep groove 32 is formed on the top surface of the lower foundation 29. The long axis of the deep groove 32 is parallel to the axis of the propulsion groove 30, and the top of the deep groove 32 is connected to the bottom of the propulsion groove 30. The two transverse side walls of the deep groove 32 are coplanar with the inner side walls of the two second concrete components 34, respectively.

[0061] The bottom of the deepening groove 32 is provided with several first through holes 36 distributed along the axial direction, and the bottom of the suspension groove 31 is provided with several second through holes 37 distributed along the axial direction.

[0062] In a more preferred embodiment, several sleeves 28 may be pre-embedded on the inner side wall of the first concrete component 33 and the inner and outer side walls of the second concrete component 34 for subsequent installation and use of the magnet module.

[0063] Example 2:

[0064] The method for casting-in-place molding of the track beam structure for the ultra-high-speed maglev track test section as described in Example 1 includes the following steps:

[0065] S1. Excavate the track beam foundation pit, locate and install two side formworks in the foundation pit, so that the foundation pit space is left at both ends of the side formwork in the axial direction;

[0066] S2. Install the lower module that matches the lower foundation 29 between the two side molds;

[0067] S3. Grout into the lower module. After the concrete has initially set, demold the lower module to obtain the lower foundation 29.

[0068] S4. Between the two side formworks and above the lower foundation 29, install the upper module that matches the beam and rail assembly;

[0069] S5. Inject grout into the upper module and demold the upper module after the concrete has initially set.

[0070] S6. Backfilling of the foundation pit.

[0071] The cast-in-place molding method in this embodiment first pours the internal space of the lower module, which can first form the overall structure of the bottom foundation of the maglev track beam. After ensuring the stability of the load-bearing capacity, the upper module is then installed and poured. This allows the load-bearing area and the track area of ​​the maglev track beam to be formed independently but are mutually fixed and dependent. This can reduce the risks of mutual interference, concrete delamination or layering that may occur when the load-bearing area and the track area of ​​the maglev track beam are poured in place at the same time, while also satisfying the integrity of the maglev track beam. Furthermore, it allows the high-height maglev track beam to be poured in stages on the work site, overcoming the defects such as the difficulty of cast-in-place operation and severe formwork deformation caused by the large overall height of the maglev track beam.

[0072] Example 3:

[0073] Based on the cast-in-place molding method described in Example 2, the lower module is shown in Figures 3 to 6:

[0074] It includes a lower end mold 2 that is detachably connected to both ends of the two side molds 1, two base partition molds 3 located between the two side molds 1, and a first L-shaped mold 4 fixed to the top of the base partition mold 3. The base partition mold 3 has several channels 27 with open bottoms, and the base partition mold 3 is parallel to the side molds 1. The first L-shaped mold 4 extends to the lateral outer direction of the corresponding base partition mold 3.

[0075] The lower module also includes a first occupant cylinder 7 fixedly connected between two base partition molds 3. Several first occupant cylinders 7 are evenly distributed along the axial direction between the two base partition molds 3. The first occupant cylinders 7 are at the same height as the base partition molds 3, and the top height of the first occupant cylinders 7 is lower than the top height of the first L-shaped mold 4.

[0076] The lower module also includes a second spacer cylinder 8 located between the base spacer 3 and the side mold 1 on the same side, and the second spacer cylinder 8 is at the same height as the first L-shaped mold 4.

[0077] The top of the second locating cylinder 8 is provided with a first positioning protrusion 9, and the top of the first L-shaped mold 4 is provided with a second positioning protrusion 10 that corresponds one-to-one with the first positioning protrusion 9; the first positioning protrusion 9 and the second positioning protrusion 10 are provided with matching first threaded through holes, and the first positioning protrusion 9 and the second positioning protrusion 10 are connected by bolts 11.

[0078] The lower module also includes an internal top mold 12 for placement at the top of the base partition mold 3 and between the two first L-shaped molds 4, and a lower top mold 13 for placement at the top of the first L-shaped mold 4 and / or the second occupier 8; the lower top mold 13 has several first through slots 14 for the first positioning protrusion 9 to pass through and second through slots 15 for the second positioning protrusion 10 to pass through; the width of the first through slot 14 is equal to the width of the first positioning protrusion 9, the width of the second through slot 15 is equal to the width of the second positioning protrusion 10, and the major axes of the first through slot 14 and the second through slot 15 are perpendicular to the axial direction of the side mold 1; the lower top mold 13 also has at least two diagonally distributed grouting holes 16.

[0079] The internal top mold 12 can be temporarily installed on the first L-shaped mold 4 through any detachable connection method such as snap-fit ​​or tenon joint.

[0080] In a more preferred embodiment, a bottom mold can also be set between the two side molds 1 according to actual operational needs.

[0081] This embodiment can limit the second occupant cylinder by using the base partition mold and the first L-shaped mold, thereby ensuring the rapid positioning and installation of the second occupant cylinder, while avoiding the shaking or displacement of the second occupant cylinders during the pouring process; it can also flexibly adjust the lateral relative position of the second occupant cylinder and the base partition mold before pouring, thus further expanding the versatility of this application.

[0082] The relative position of the second occupant tube and the foundation partition mold can be determined by the positions of the first and second positioning protrusions. This allows for a final check of the position of each second occupant tube before casting, effective adjustment of the relative position of the second occupant tube and the foundation partition mold, and installation of corresponding bolts on the top mold. The presence of bolts will not affect the shape of the lower structure of the maglev track beam after casting.

[0083] In this embodiment, the method for installing a lower module that matches the lower foundation 29 between the two side molds includes:

[0084] S201. Connect several first spacer cylinders 7 to a base mold 3, and connect another base mold 3;

[0085] S202. The two basic partition molds 3, together with several first occupant cylinders 7 in between, are hoisted to the space between the two side molds 1, so that the two basic partition molds 3 are in the designed position.

[0086] S203. Place each of the second occupant cylinders 8 in the designed position, so that the first positioning protrusion 9 on each of the second occupant cylinders 8 is directly opposite to the second positioning protrusion 10 on the corresponding first L-shaped mold 4.

[0087] S204. Install the inner top mold 12 between the two first L-shaped molds 4, so that the two transverse ends of the inner top mold 12 are respectively located on the step surfaces of the two first L-shaped molds 4.

[0088] S205. Install the lower ejector mold 13, place the lower ejector mold 13 on the top of the first L-shaped mold 4 and the second stationary cylinder 8, and make the first positioning protrusion 9 pass through the corresponding first through groove 14 and the second positioning protrusion 10 pass through the corresponding second through groove 15.

[0089] S206. By checking the positions of the first positioning protrusion 9 and the second positioning protrusion 10 on the lower top mold 13, the relative positions of each second occupier 8 and the first L-shaped mold 4 are verified. If the lateral error of a certain second occupier 8 is found to exceed the threshold, force is applied to the first positioning protrusion 9 to drive the corresponding second occupier 8 to adjust its lateral position.

[0090] S207. After the positions of all the second locating cylinders 8 have been verified, screw the bolts 11 into the corresponding first threaded through holes and tighten them with nuts on the outer side of the first positioning protrusion 9 and the second positioning protrusion 10.

[0091] Example 4:

[0092] Based on the cast-in-place molding method described in Example 2, the upper module is shown in Figures 7 and 8:

[0093] It includes an upper end mold that is detachably connected to both ends of the two side molds 1 along the axial direction, two propulsion groove molds 5 located between the two side molds 1, a first suspension groove mold 6 located between the propulsion groove mold 5 and the side mold 1 on the same side, and a second suspension groove mold 17; the propulsion groove mold 5, the first suspension groove mold 6 and the second suspension groove mold 17 are all parallel to the side molds 1.

[0094] The bottom of the first suspension trough mold 6 and the second suspension trough mold 17 are both connected to the inclined mold 18. The bottom of the inclined mold 18 is connected to the bearing mold 19. The inclined mold 18 is inclined from top to bottom in the lateral outward direction. The bearing mold 19 is parallel to the corresponding first suspension trough mold 6 or second suspension trough mold 17.

[0095] The first suspension trough mold 6 and the second suspension trough mold 17 each have several axially distributed insertion holes 25 at their bottom sides. The top of the inclined mold 18 is provided with several positioning blocks 20 that correspond one-to-one with the insertion holes 25. The first suspension trough mold 6 and the second suspension trough mold 17 have second threaded through holes 21 on their two axially oriented end faces, and the second threaded through holes 21 communicate with the nearest insertion hole 25. The positioning blocks 20 at both ends along the axial direction have threaded blind holes 22 that match the second threaded through holes 21. The mold also includes a gripping part 23 provided on the inner sidewall of the first suspension trough mold 6 and the second suspension trough mold 17, and several sleeve mounting holes 24 provided on the surface of the first suspension trough mold 6 and the second suspension trough mold 17.

[0096] The second suspension channel mold 17 is located between the corresponding first suspension channel mold 6 and propulsion channel mold 5. The top of the second suspension channel mold 17 is fixedly connected to the second L-shaped mold 26. The second L-shaped mold 26 extends toward the direction of the propulsion channel mold 5, and the top height of the second L-shaped mold 26 is higher than the top height of the side mold 1 and the first suspension channel mold 6, but lower than the top height of the propulsion channel mold 5.

[0097] In this embodiment, all templates can be heightened and lengthened, facilitating external connection and stabilization through common support or tie-down methods.

[0098] In a more preferred embodiment, all templates in the upper module, as well as the side mold 1 and the lower top mold 13, are made of steel templates; all templates in the lower module, except for the lower top mold 13, are made of wood templates.

[0099] In a more preferred embodiment, each sleeve mounting hole 24 is fitted with a sleeve 28, which is left inside the molded component during demolding.

[0100] In this embodiment, the method for demolding the upper module includes:

[0101] S501. After the concrete inside the upper module has initially set, the workers enter the remaining foundation pit space at both ends of the axis and unscrew the bolts connecting the second threaded through hole 21 and the threaded blind hole 22.

[0102] S502, the first suspension trough mold 6 and the second suspension trough mold 17 are pulled inward by the gripping part 23 to demold the first suspension trough mold 6 and the second suspension trough mold 17.

[0103] S503. The first suspension tank mold 6 and the second suspension tank mold 17 are respectively lifted out from the formed suspension tank.

[0104] S504. Demold the entire structure consisting of each inclined mold 18 and the bearing mold 19, and lift it out from the formed suspension trough.

[0105] This embodiment eliminates the need for excavating an extra foundation pit of equal length to the side plate, enabling rapid demolding of irregularly shaped upper modules. This effectively solves the problems of difficult demolding and difficulty in removing inclined molds, while also effectively reducing the risk of damage to the sleeve caused by bumps or squeezing.

[0106] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Additionally, the term "connection" as used herein, unless otherwise specified, can refer to a direct connection or an indirect connection via other components.

[0107] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment 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 within the scope of protection of the present invention.

Claims

1. A track beam structure for a test section of an ultra-high-speed maglev track, characterized in that, The system includes a lower foundation (29) and a beam-rail assembly located on the lower foundation (29). The beam-rail assembly includes a propulsion groove (30) and suspension grooves (31) located on both sides of the propulsion groove (30). The suspension grooves (31) are parallel to the axis of the propulsion groove (30). The propulsion groove (30) is used to install a propulsion magnet module, and the suspension grooves (31) are used to install a suspension magnet module.

2. The track beam structure for the test section of ultra-high-speed maglev track according to claim 1, characterized in that, The beam-rail assembly includes two first concrete components (33) and two second concrete components (34) located between the two first concrete components (33); the two second concrete components (34) form the propulsion groove (30), and the first concrete component (33) and the second concrete component (34) located on the same side of the propulsion groove (30) form the suspension groove (31).

3. The track beam structure for the test section of ultra-high-speed maglev track according to claim 2, characterized in that, Two first concrete components (33) and two second concrete components (34) are symmetrically distributed with respect to the axis of the propulsion groove (30); the transverse outer wall of the first concrete component (33) is coplanar with the transverse outer wall of the lower foundation (29); the transverse inner wall of the second concrete component (34) is coplanar with the groove wall of the propulsion groove (30).

4. The track beam structure for the test section of ultra-high-speed maglev track according to claim 2, characterized in that, The top of the second concrete member (34) is set in a stepped shape that gradually decreases in the lateral outward direction.

5. The track beam structure for the test section of ultra-high-speed maglev track according to claim 1, characterized in that, The bottom of the suspension trough (31) is a widening area (35), the top of the widening area (35) is connected to the bottom of the suspension trough (31), and the widening area (35) includes a widening portion whose horizontal width gradually increases from top to bottom.

6. The track beam structure for the test section of ultra-high-speed maglev track according to claim 2, characterized in that, The lower foundation (29) has a deep groove (32) on its top surface. The long axis of the deep groove (32) is parallel to the axis of the propulsion groove (30), and the top of the deep groove (32) is connected to the bottom of the propulsion groove (30). The transverse side walls of the deep groove (32) are coplanar with the inner side walls of the two second concrete components (34).

7. The track beam structure for the test section of ultra-high-speed maglev track according to claim 6, characterized in that, The bottom of the deepening groove (32) has several first through holes (36) distributed along the axial direction, and the bottom of the suspension groove (31) has several second through holes (37) distributed along the axial direction.

8. A method for forming a track beam structure based on any one of claims 1 to 7, characterized in that, Includes the following steps: S1. Excavate the track beam foundation pit, locate and install two side formworks (1) in the foundation pit, so that the side formworks (1) have foundation pit space at both ends in the axial direction; S2. Install a lower module that matches the lower foundation (29) between the two side molds (1); S3. Grout into the lower module. After the concrete has initially set, demold the lower module to obtain the lower foundation (29). S4. Between the two side molds (1) and on the lower foundation (29), install an upper module that matches the beam rail assembly; S5. Inject grout into the upper module and demold the upper module after the concrete has initially set. S6. Backfilling of the foundation pit.

9. The method for forming a track beam structure according to claim 8, characterized in that, The lower module includes: a lower end mold (2) detachably connected to the two axial ends of the two side molds (1), two basic partition molds (3) located between the two side molds (1), and a first L-shaped mold (4) fixed to the top of the basic partition mold (3). The basic partition mold (3) has several channels (27) with open bottoms, and the basic partition mold (3) is parallel to the side molds (1). The first L-shaped mold (4) extends to the lateral outer direction of the corresponding basic partition mold (3). It also includes a first occupant cylinder (7) fixedly connected between two base partition molds (3), and a plurality of first occupant cylinders (7) are evenly distributed along the axial direction between the two base partition molds (3); the first occupant cylinder (7) is at the same height as the base partition mold (3), and the top height of the first occupant cylinder (7) is lower than the top height of the first L-shaped mold (4); It also includes a second occupant cylinder (8) located between the base partition mold (3) and the same side mold (1), the second occupant cylinder (8) being at the same height as the first L-shaped mold (4).

10. The method for forming a track beam structure according to claim 8, characterized in that, The upper module includes an upper end mold detachably connected to the two axial ends of the two side molds (1), two propulsion groove molds (5) located between the two side molds (1), a first suspension groove mold (6) located between the propulsion groove mold (5) and the side mold (1) on the same side, and a second suspension groove mold (17); the propulsion groove mold (5), the first suspension groove mold (6) and the second suspension groove mold (17) are all parallel to the side molds (1).

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