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

Abstract

The present invention discloses a track beam structure for an ultra-high-speed maglev track test section and a forming method thereof, comprising a lower foundation, a beam-rail assembly located on the lower foundation, the beam-rail assembly comprising a propulsion groove, and suspension grooves located on both sides of the propulsion groove, the suspension grooves being parallel to the axis of the propulsion groove; the propulsion groove is used to install a propulsion magnet module, and the suspension groove is used to install a suspension magnet module. The purpose of the present invention is to provide a track beam structure for an ultra-high-speed maglev track test section and a forming method thereof, so as to solve the problem that the maglev track beam in the prior art is not suitable for use in the track of the ultra-high-speed maglev test section, and to achieve the purpose of providing a matching maglev track beam for the magnet module of the ultra-high-speed maglev technology.

Description

Technical Field

[0001] The invention relates to the field of maglev tracks, and in particular to a track beam structure used in a test section of an ultra-high-speed maglev track and a forming 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 a traditional railway. Compared with the operation of traditional rail trains, maglev trains have extremely high requirements for the accuracy of the track beam.

[0003] In the field of high-speed maglev, the distance between the train magnets and the magnets on the track beam directly affects the change in magnetic buoyancy. In order to ensure the smooth development of lift and resistance when the vehicle takes off and lands, and at the same time ensure the riding comfort of the vehicle in the middle section of the line, very strict requirements are placed on the construction accuracy of traditional maglev track beams, which makes it difficult for traditional cast-in-place construction technology to meet this accuracy requirement.

[0004] In the prior art, a track beam of a maglev track is generally equipped with a group of large magnet modules inside, which are used to provide forward driving force and lift required for suspension for the vehicle above at the same time; this maglev method has the disadvantages that the magnet module is too large and is very difficult to manufacture and install; in addition, with the continuous in-depth research on ultra-high-speed maglev track technology, the application of ultra-high-speed maglev technology has gradually begun to be considered in certain non-railway transportation fields, which requires the construction of a test section track to carry out a large number of engineering tests and verifications; however, the existing maglev track beam cannot be installed with the magnet module of the ultra-high-speed maglev technology, and is therefore not suitable for use in the test section track of ultra-high-speed maglev. Summary of the invention

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

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

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

[0008] In view of the problem that the maglev track beam in the prior art is not suitable for use in the test section track of ultra-high-speed maglev, the present invention first proposes a track beam structure for the ultra-high-speed maglev track test section, the track beam structure includes a beam-rail assembly distributed up and down, and a lower foundation, wherein the beam-rail assembly is fixedly arranged on the lower foundation. In this application, the lower foundation mainly plays the role of the middle "beam" of the track beam, and the beam-rail assembly mainly plays the role of the middle "rail" of the track beam.

[0009] In the beam-track assembly, two suspension grooves are respectively located on both sides of the propulsion groove, and the suspension groove extends in the same direction as the propulsion groove. The propulsion groove is used to install the propulsion magnet module, and the suspension groove is used to install the suspension magnet module. Different installation spaces can be provided for magnet modules with different functions, which can solve the installation, use, and maintenance problems caused by the excessively large volume of the lower magnetic module in the existing maglev technology. By dividing the magnet modules in the track beam into a group of propulsion magnet modules and two groups of suspension magnet modules, it is adapted to the use of ultra-high-speed maglev track technology, especially suitable for the use of ultra-high-speed maglev test section tracks under certain special carrying conditions, and thus provides a matching maglev track beam for the magnet module of the ultra-high-speed maglev technology, filling the gap in the existing technology.

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

[0011] The beam-rail assembly and the lower foundation in the present application can be made by cast-in-place or prefabrication, and the specific preparation 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 thrust groove is formed between the two second concrete components, and the suspension groove is formed between the first concrete component and the second concrete component located on the same side of the thrust groove.

[0013] In this solution, the first concrete component is located on the lateral outer side of the beam-rail assembly, and the second concrete component is located in the middle position 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 therein; there is a group of first concrete components and second concrete components on the left and right sides of the propulsion groove, respectively, and 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 therein.

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

[0015] This solution can make the lateral side walls of the track beam structure have a flat and continuous surface, and at the same time make the groove wall of the thrust groove flat and continuous, thereby reducing the risk of obstruction that may be encountered when the maglev track beam is positioned and installed.

[0016] The transverse direction in this application refers to the wind direction perpendicular to the axial direction of the track beam.

[0017] Furthermore, the top end of the second concrete member is arranged in a stepped shape which gradually descends toward the lateral outer side, and this shape facilitates the cooperation with the upper carrying equipment and ensures the lateral stability of the carrying equipment when running at ultra-high speed.

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

[0019] This solution sets a widening area at the bottom of the suspension tank, which can better meet the installation requirements of the suspension magnet module; at the same time, since the depth of the suspension tank is relatively small, the existence of the widening area can reduce the interference of debris, accumulated water, etc. that may appear inside the suspension tank on the suspension magnet module.

[0020] Furthermore, a deepened groove is provided on the top surface of the lower foundation, the long axis of the deepened groove is parallel to the axis of the advancement groove, and the top end of the deepened groove is connected to the bottom end of the advancement groove; the lateral side groove walls of the deepened groove are coplanar with the inner side walls of the two second concrete components.

[0021] The deepening groove in this scheme can be understood as making the bottom of the propulsion groove located on the top surface of the lower foundation, and then deepening the propulsion groove downward, and the deepened area is completely located on the lower foundation. The purpose of this scheme to deepen the propulsion groove through the lower foundation is to consider that the propulsion magnet module needs to provide a larger magnetic force required for propulsion for ultra-high-speed maglev technology, so its volume will be larger than the suspension magnet module. Therefore, by deepening the propulsion groove, it is easier to install the propulsion magnet module, and at the same time, a deeper margin is reserved to reduce the interference of possible debris, water accumulation, etc. on the propulsion magnet module.

[0022] Furthermore, a plurality of first through holes distributed along the axial direction are formed at the bottom of the deepening groove, and a plurality of second through holes distributed along the axial direction are formed at the bottom of the suspension groove.

[0023] In this solution, the first through hole and the second through hole are both connected to the bottom surface of the lower foundation, which can effectively reduce the stress concentration phenomenon inside the lower foundation; at the same time, it is beneficial to ensure the balance of temperature, humidity, pressure, etc. inside and outside the propulsion groove and suspension groove, and is more conducive to the magnetic levitation test section track to simulate actual wilderness conditions.

[0024] The forming method of the track beam structure based on the present application comprises the following steps:

[0025] S1. Excavate the track beam foundation pit, locate and install two side forms in the foundation pit, so that there is space for the foundation pit at both ends of the side forms;

[0026] S2, installing a lower mold assembly matching the lower foundation between the two side molds;

[0027] S3, injecting grout into the lower module, and demoulding the lower module after the concrete is initially set to obtain the lower foundation;

[0028] S4, installing an upper mold assembly matching the beam-rail assembly between the two side molds and on the lower foundation;

[0029] S5, grouting the interior of the upper module, and demoulding the upper module after the concrete is initially set;

[0030] S6. Backfill the foundation pit.

[0031] Furthermore, the lower mold assembly includes: a lower end mold detachably connected to the axial ends of the two side molds, 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, wherein a plurality of channels with open bottoms are provided on the basic partition mold, and the basic partition mold is parallel to the side mold, and the first L-shaped mold extends in the lateral outer direction of the corresponding basic partition mold;

[0032] It also includes a first placeholder tube fixedly connected between the two basic spacer molds, and a plurality of first placeholder tubes are evenly distributed along the axial direction between the two basic spacer molds; the first placeholder tube is at the same height as the basic spacer mold, and the top height of the first placeholder tube is lower than the top height of the first L-shaped mold;

[0033] It also includes a second placeholder tube located between the basic partition mold and the side mold on the same side, and the second placeholder tube is at the same height as the first L-shaped mold.

[0034] In this solution, the lower end mold is located at the two axial ends of the maglev track beam, and the basic partition mold is used to distinguish the different areas corresponding to the upper push groove and the suspension groove; the bottom of the channel thereon is open, so as to ensure that when pouring concrete, the concrete can quickly and smoothly fill the internal space of the lower mold; the first L-shaped mold includes two mutually perpendicular surfaces, wherein the side surface directly connected to the basic partition mold is perpendicular to the basic partition mold and extends laterally outward, and the other side surface is parallel to the basic partition mold and extends upward. This arrangement enables the two first L-shaped molds to jointly form the bottom structure of the middle push groove of the maglev track beam (because the depth of the push groove is greater than the depth of the suspension groove), and can provide a positioning basis for the installation of the push groove mold in the upper mold, which is conducive to ensuring the continuity of the two previous pouring operations. Among them, the lateral outer side of the basic partition mold refers to the side of the basic partition mold that is perpendicular to the axial direction and away from the direction of the other basic partition mold.

[0035] Furthermore, the upper mold group includes an upper end mold detachably connected to the axial ends of the two side molds, two push-in slot molds located between the two side molds, a first suspended slot mold and a second suspended slot mold located between the push-in slot mold and the side mold on the same side; the push-in slot mold, the first suspended slot mold and the second suspended slot mold are all parallel to the side molds.

[0036] In the upper mold assembly, the upper end molds are located at the axial ends of the magnetic levitation track beam, two propulsion slot molds are used to form the propulsion slot, and the first suspension slot mold and the second suspension slot mold that cooperate with each other are used to form a suspension slot.

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

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

[0039] 2. The track beam structure and forming method thereof for the ultra-high-speed maglev track test section of the present invention can be adapted to the use of ultra-high-speed maglev track technology, and is particularly suitable for the use of ultra-high-speed maglev test section tracks under certain special transport conditions, thereby providing a matching maglev track beam for the magnet module of the ultra-high-speed maglev technology, thus filling the gap in the prior art.

[0040] 3. The track beam structure and forming method thereof for the ultra-high-speed maglev track test section of the present invention first cast the lower foundation, and then cast the beam-rail assembly under the condition of ensuring stable load-bearing, so that the load-bearing area and the track area of ​​the maglev track beam are formed independently but mutually consolidated and dependent, which can reduce the risks of mutual interference, concrete stratification or layer mixing that may exist when the load-bearing area and the track area of ​​the maglev track beam are cast at the same time, while ensuring the integrity of the maglev track beam.

[0041] 4. The track beam structure and forming method thereof used in the ultra-high-speed maglev track test section of the present invention can effectively reduce the stress concentration phenomenon of the track beam, while being conducive to ensuring the balance of internal and external temperature, humidity, pressure, etc., and is more conducive to the maglev test section track simulating actual wilderness conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] 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:

[0043] Figure 1 It 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 It is an exploded schematic diagram of the lower module in a specific embodiment of the present invention;

[0046] Figure 4 It is a side view of the lower module in the specific embodiment of the present invention when it is working;

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

[0048] Figure 6 for Figure 3 A partial enlarged view of the middle A;

[0049] Figure 7 It is a side view of the upper module in the specific embodiment of the present invention when it is working;

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

[0051] Marks and corresponding parts names in the attached drawings:

[0052] 1-side mold, 2-lower end mold, 3-base partition mold, 4-first L-shaped mold, 5-advancing slot mold, 6-first suspended slot mold, 7-first place-occupying cylinder, 8-second place-occupying 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 suspended slot mold, 18-inclined mold, 19-bearing Mould, 20-positioning block, 21-second threaded through hole, 22-threaded blind hole, 23-gripping portion, 24-sleeve mounting hole, 25-jack, 26-second L-shaped mould, 27-channel, 28-sleeve, 29-lower foundation, 30-advance groove, 31-suspended groove, 32-deepened groove, 33-first concrete member, 34-second concrete member, 35-widening area, 36-first through hole, 37-second through hole. DETAILED DESCRIPTION

[0053] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0054] Embodiment 1:

[0055] like Figure 1 and Figure 2 The track beam structure for the ultra-high-speed maglev track test section shown includes a lower foundation 29 and a beam-rail assembly located on the lower foundation 29. Those skilled in the art should understand that Figure 1 and Figure 2 The dotted line in FIG. 2 is a schematic line used to separate the lower foundation 29 from the beam-rail assembly and does not represent any entity or meaning.

[0056] The beam-rail assembly in this embodiment includes a propulsion groove 30 and suspension grooves 31 located on both sides of the propulsion groove 30, and the suspension grooves 31 are 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.

[0057] The beam-rail assembly further includes two first concrete components 33 and two second concrete components 34 located between the two first concrete components 33 ; a propulsion groove 30 is formed between the two second concrete components 34 , and a suspension groove 31 is formed between the first concrete component 33 and the second concrete component 34 located on the same side of the propulsion groove 30 .

[0058] The two first concrete components 33 and the two second concrete components 34 are symmetrically distributed relative to the axis of the advancement 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 advancement groove 30.

[0059] The top end of the second concrete member 34 is provided in a stepped shape that gradually decreases toward the lateral outer side.

[0060] The bottom of the suspension groove 31 is a widening area 35 , the top of the widening area 35 is connected to the bottom of the suspension groove 31 , and the widening area 35 includes a widening portion whose lateral width gradually increases from top to bottom.

[0061] A deepened groove 32 is provided on the top surface of the lower foundation 29 , the long axis of the deepened groove 32 is parallel to the axis of the advancement groove 30 , and the top end of the deepened groove 32 is connected to the bottom end of the advancement groove 30 ; the lateral side groove walls of the deepened groove 32 are coplanar with the inner side walls of the two second concrete components 34 .

[0062] A plurality of first through holes 36 distributed along the axial direction are formed at the bottom of the deepening groove 32 , and a plurality of second through holes 37 distributed along the axial direction are formed at the bottom of the suspension groove 31 .

[0063] In a more preferred embodiment, a plurality of sleeves 28 may be pre-embedded on the inner wall of the first concrete component 33 and the inner and outer walls of the second concrete component 34 for use in the subsequent installation of the magnet module.

[0064] Embodiment 2:

[0065] The cast-in-place forming method for the track beam structure of the ultra-high-speed maglev track test section as described in Example 1 comprises the following steps:

[0066] S1. Excavate the track beam foundation pit, locate and install two side forms in the foundation pit, so that there is space for the foundation pit at both ends of the side forms;

[0067] S2, installing a lower mold assembly matching the lower foundation 29 between the two side molds;

[0068] S3, injecting grout into the lower module, and demoulding the lower module after the concrete is initially set to obtain the lower foundation 29;

[0069] S4, installing an upper mold assembly matching the beam-rail assembly between the two side molds and on the lower foundation 29;

[0070] S5, grouting the interior of the upper module, and demoulding the upper module after the concrete is initially set;

[0071] S6. Backfill the foundation pit.

[0072] The cast-in-place forming method of the present embodiment casts the inner space of the lower module first, so as to form the overall structure of the bottom foundation of the maglev track beam first, and then install and cast the upper module while ensuring the load-bearing stability, so that the load-bearing area and the track area of ​​the maglev track beam are formed independently but are mutually consolidated and dependent, which can reduce the risks of mutual interference, concrete stratification or layer mixing that may exist when the load-bearing area and the track area of ​​the maglev track beam are cast in situ at the same time, while ensuring the integrity of the maglev track beam; and it enables the large-height maglev track beam to be cast in stages at the work site, overcoming the defects of difficult cast-in-place operations and serious template deformation caused by the excessive overall height of the maglev track beam.

[0073] Embodiment 3:

[0074] Based on the cast-in-place molding method described in Example 2, the lower mold assembly is as follows: Figures 3 to 6 As shown:

[0075] It comprises a lower end mold 2 detachably connected to the 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 is provided with a plurality of channels 27 with open bottoms, and the basic partition mold 3 is parallel to the side mold 1. The first L-shaped mold 4 extends in the lateral outer direction of the corresponding basic partition mold 3.

[0076] The lower mold assembly also includes a first placeholder tube 7 fixedly connected between the two basic spacer molds 3, and a plurality of first placeholder tubes 7 are evenly distributed axially between the two basic spacer molds 3; the first placeholder tube 7 is at the same height as the basic spacer mold 3, and the top height of the first placeholder tube 7 is lower than the top height of the first L-shaped mold 4.

[0077] The lower mold assembly further includes a second placeholder tube 8 located between the basic partition mold 3 and the side mold 1 on the same side. The second placeholder tube 8 is at the same height as the first L-shaped mold 4 .

[0078] A first positioning protrusion 9 is arranged on the top of the second placeholder tube 8, and a second positioning protrusion 10 corresponding to the first positioning protrusion 9 is arranged on the top of the first L-shaped mold 4; first threaded through holes matching each other are provided on the first positioning protrusion 9 and the second positioning protrusion 10, and the first positioning protrusion 9 and the second positioning protrusion 10 are connected by bolts 11.

[0079] The lower mold assembly also includes an internal top mold 12 for being placed at the top of the basic spacer mold 3 and between the two first L-shaped molds 4, and a lower top mold 13 for being placed at the top of the first L-shaped mold 4 and / or the second placeholder tube 8; the lower top mold 13 is provided with a plurality of first through grooves 14 for the first positioning protrusions 9 to pass through and second through grooves 15 for the second positioning protrusions 10 to pass through; the groove width of the first through groove 14 is equal to the width of the first positioning protrusion 9, the groove width of the second through groove 15 is equal to the width of the second positioning protrusion 10, and the long axes of the first through groove 14 and the second through groove 15 are both perpendicular to the axial direction of the side mold 1; at least two diagonally distributed grouting holes 16 are also provided on the lower top mold 13.

[0080] The internal top mold 12 can be temporarily installed on the first L-shaped mold 4 by any detachable connection method such as snap fasteners, mortise and tenon joints, etc.

[0081] In a more preferred embodiment, a bottom mold can be further arranged between the two side molds 1 according to actual operation requirements.

[0082] In this embodiment, the second placeholder tube can be limited by the basic spacer mold and the first L-shaped mold, so as to ensure the rapid positioning and installation of the second placeholder tube, and at the same time avoid the shaking or displacement of the second placeholder tubes during the pouring process; the lateral relative position of the second placeholder tube and the basic spacer mold can also be flexibly adjusted before pouring, thereby further broadening the versatility of the present application.

[0083] The relative position of the second placeholder tube below and the basic spacer mold can also be determined by the position of the first positioning protrusion and the second positioning protrusion, and then the position of each second placeholder tube can be finally checked before pouring, the relative position of the second placeholder tube and the basic spacer mold can be effectively adjusted, and the corresponding bolts can be installed above the lower top mold, and the shape of the lower structure of the maglev track beam after casting below will not be affected by the presence of the bolts.

[0084] In this embodiment, the method of installing the lower mold assembly matching the lower foundation 29 between the two side molds includes:

[0085] S201, connecting a plurality of first placeholder tubes 7 to one basic spacer mold 3, and connecting another basic spacer mold 3;

[0086] S202, hoisting the two basic partition molds 3 together with a plurality of first place-occupying tubes 7 therebetween between the two side molds 1, so that the two basic partition molds 3 are located at the designed positions;

[0087] S203, placing each second place-occupying tube 8 to the designed position, so that the first positioning protrusion 9 on each second place-occupying tube 8 is directly opposite to the second positioning protrusion 10 on the corresponding first L-shaped mold 4;

[0088] S204, installing the internal top mold 12 between the two first L-shaped molds 4, so that the lateral ends of the internal top mold 12 are respectively located on the step surfaces of the two first L-shaped molds 4;

[0089] S205, install the lower top mold 13, place the lower top mold 13 on the top of the first L-shaped mold 4 and the second place-occupying tube 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;

[0090] S206, checking the relative positions of the second place-taking tubes 8 and the first L-shaped mold 4 through the positions of the first positioning protrusions 9 and the second positioning protrusions 10 on the lower top mold 13: if it is found that the lateral error of a second place-taking tube 8 exceeds the threshold, applying force to the first positioning protrusions 9 to drive the corresponding second place-taking tube 8 to adjust the lateral position;

[0091] S207 , after the positions of all the second place-occupying tubes 8 are verified, the bolts 11 are screwed into the corresponding first threaded through holes and are tightened with nuts on the outside of the first positioning protrusions 9 and the second positioning protrusions 10 .

[0092] Embodiment 4:

[0093] Based on the cast-in-place molding method described in Example 2, the upper mold assembly is as follows: Figure 7 and Figure 8 As shown:

[0094] It includes an upper end mold detachably connected to the axial ends of the two side molds 1, two push-in slot molds 5 located between the two side molds 1, a first suspended slot mold 6 and a second suspended slot mold 17 located between the push-in slot mold 5 and the side mold 1 on the same side; the push-in slot mold 5, the first suspended slot mold 6 and the second suspended slot mold 17 are all parallel to the side mold 1.

[0095] The bottoms of the first suspended slot mold 6 and the second suspended slot mold 17 are connected to the inclined mold 18, and the bottom of the inclined mold 18 is connected to the supporting mold 19. The inclined mold 18 is inclined from top to bottom toward the lateral outer side, and the supporting mold 19 is parallel to the corresponding first suspended slot mold 6 or second suspended slot mold 17.

[0096] The first suspended slot mold 6 and the second suspended slot mold 17 are provided with a plurality of axially distributed insertion holes 25 at the bottom end of the side surface, and a plurality of positioning blocks 20 corresponding to the insertion holes 25 are provided at the top end of the inclined mold 18; the first suspended slot mold 6 and the second suspended slot mold 17 are provided with second threaded through holes 21 on both side end surfaces along the axial direction, and the second threaded through holes 21 are connected to the nearest insertion holes 25; threaded blind holes 22 matching the second threaded through holes 21 are provided on the positioning blocks 20 at both ends along the axial direction; and the holding portion 23 is also provided on the inner side wall of the first suspended slot mold 6 and the second suspended slot mold 17, and a plurality of sleeve mounting holes 24 are provided on the surface of the first suspended slot mold 6 and the second suspended slot mold 17.

[0097] The second suspended slot mold 17 is located between the corresponding first suspended slot mold 6 and the pushing slot mold 5. The top of the second suspended slot mold 17 is fixedly connected to the second L-shaped mold 26. The second L-shaped mold 26 extends in the direction of the pushing slot mold 5. The top height of the second L-shaped mold 26 is higher than the top height of the side mold 1 and the first suspended slot mold 6, and lower than the top height of the pushing slot mold 5.

[0098] In this embodiment, all templates can be heightened and lengthened to facilitate external connection and stabilization through common support or pulling methods.

[0099] In a more preferred embodiment, all the templates in the upper mold set, as well as the side molds 1 and the lower top mold 13 are made of steel templates; and all the templates in the lower template except the lower top mold 13 are made of wooden templates.

[0100] In a more preferred embodiment, each sleeve installation hole 24 is equipped with a sleeve 28, and the sleeve 28 is retained in the molded component during demoulding.

[0101] In this embodiment, the method of demoulding the upper module includes:

[0102] S501, after the concrete inside the upper module is initially set, the staff enters the remaining foundation pit space at both ends of the axial direction, and unscrews the bolts connecting the second threaded through hole 21 and the threaded blind hole 22;

[0103] S502, pulling the first suspension slot mold 6 and the second suspension slot mold 17 toward the inside of the formed suspension slot through the holding portion 23, so that the first suspension slot mold 6 and the second suspension slot mold 17 are demoulded;

[0104] S503, respectively lifting out the first suspension slot mold 6 and the second suspension slot mold 17 from the formed suspension slot;

[0105] S504, demoulding the whole formed by the inclined molds 18 and the supporting molds 19, and hanging it out from the formed suspension tank.

[0106] This embodiment can achieve rapid demoulding of the special-shaped upper mold assembly without digging an extra foundation pit of the same length as the side plate, effectively solving the problem of difficult demoulding and difficult removal of inclined molds, and at the same time effectively reducing the risk of damage to the sleeve due to bumping or squeezing the sleeve.

[0107] 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.

[0108] 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.

Claims

1. A forming method for a track beam structure for an ultra-high-speed maglev track test section, characterized in that: The invention comprises a lower foundation (29) and a beam-rail assembly located on the lower foundation (29), wherein the beam-rail assembly comprises a propulsion groove (30) and suspension grooves (31) located on both sides of the propulsion groove (30), wherein 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; The forming method of the track beam structure comprises the following steps: S1, excavating a track beam foundation pit, positioning and installing two side molds (1) in the foundation pit, so that there is foundation pit space at both axial ends of the side molds (1); S2, installing a lower mold assembly matching the lower foundation (29) between the two side molds (1); S3, injecting grout into the lower mold, and demoulding the lower mold after the concrete is initially set, thereby obtaining the lower foundation (29); S4, installing an upper mold assembly matching the beam-rail assembly between the two side molds (1) and on the lower foundation (29); S5, grouting the interior of the upper module, and demoulding the upper module after the concrete is initially set; S6, backfilling of foundation pit; The lower mold assembly comprises: a lower end mold (2) detachably connected to the 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), wherein a plurality of channels (27) with open bottoms are provided on the basic partition mold (3), and the basic partition mold (3) is parallel to the side mold (1), and the first L-shaped mold (4) extends in a lateral outer direction of the corresponding basic partition mold (3); It also comprises a first placeholder tube (7) fixedly connected between the two basic spacer molds (3), and a plurality of first placeholder tubes (7) are evenly distributed along the axial direction between the two basic spacer molds (3); the first placeholder tube (7) is at the same height as the basic spacer mold (3), and the top height of the first placeholder tube (7) is lower than the top height of the first L-shaped mold (4); It also includes a second place-occupying tube (8) located between the base partition mold (3) and the side mold (1) on the same side, and the second place-occupying tube (8) is at the same height as the first L-shaped mold (4); A first positioning protrusion (9) is arranged on the top of the second occupier tube (8), and a second positioning protrusion (10) corresponding to the first positioning protrusion (9) is arranged on the top of the first L-shaped mold (4); first threaded through holes matching each other are provided on the first positioning protrusion (9) and the second positioning protrusion (10), and the first positioning protrusion (9) and the second positioning protrusion (10) are connected by bolts (11).

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

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

4. The method for forming a track beam structure for an ultra-high-speed maglev track test section according to claim 2, characterized in that: The top end of the second concrete component (34) is arranged in a stepped shape that gradually descends toward the transverse outer side.

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

6. The forming method of the track beam structure for the ultra-high-speed maglev track test section according to claim 2, characterized in that: A deepened groove (32) is provided on the top surface of the lower foundation (29), the long axis of the deepened groove (32) is parallel to the axis of the advancement groove (30), and the top end of the deepened groove (32) is connected to the bottom end of the advancement groove (30); the groove walls on both sides of the deepened groove (32) are coplanar with the inner side walls of the two second concrete components (34), respectively.

7. The method for forming a track beam structure for an ultra-high-speed maglev track test section according to claim 6, characterized in that: The bottom of the deepening groove (32) is provided with a plurality of first through holes (36) distributed along the axial direction, and the bottom of the suspension groove (31) is provided with a plurality of second through holes (37) distributed along the axial direction.

8. The method for forming a track beam structure for an ultra-high-speed maglev track test section according to claim 1, characterized in that: The upper mold assembly comprises an upper end mold detachably connected to the axial ends of the two side molds (1), two push-in slot molds (5) located between the two side molds (1), and a first suspended slot mold (6) and a second suspended slot mold (17) located between the push-in slot mold (5) and the same-side side mold (1); the push-in slot mold (5), the first suspended slot mold (6) and the second suspended slot mold (17) are all parallel to the side mold (1).

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