Embedded track monolithic track bed construction method

Abstract

The invention discloses a construction method of an embedded track monolithic track bed. The construction method comprises the following steps: S1, determining a reference track; s2, the detachable rail bearing groove bent frame is assembled; s3, hoisting and transporting; s4, construction preparation before pouring; s5, concrete pouring; s6, the detachable rail bearing groove framed bent is disassembled; s7, a temporary transportation channel is installed, and the next section is poured; s8, the temporary transportation channel and the welding steel rail mill are disassembled; s9, a walking track is installed; and S10, a polymer damping material is poured. The rail-bearing groove bent frame has the beneficial effects that the rail-bearing groove bent frame is of a detachable structure, the construction precision of the monolithic track bed is improved, the workload of adjusting and positioning is reduced, assembly and rail installation of the detachable rail-bearing groove bent frame can be constructed at the same time, the construction period is greatly shortened, the requirement for material transfer when a rail car is used for segmented construction is met, and the construction efficiency is improved. The use is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of traffic track engineering, in particular to a method for constructing an integral track bed of an embedded track. Background Art

[0002] Track laying typically utilizes a monolithic trackbed construction method. Monolithic trackbeds offer numerous advantages, including low maintenance, simple structure, strong integrity, and a clean surface. They are widely used on railways both domestically and internationally. The current monolithic trackbed construction process is as follows: First, the concrete trackbed is poured at the designed location. The trackbed's flatness and strength must be ensured to meet the requirements of subsequent track installation. After the trackbed solidifies, the rail troughs are installed. These trough-shaped structures, used to secure the track, are typically installed on the trackbed surface to ensure track stability and accuracy. Other components (such as rails) are then installed and adjusted. In conventional monolithic trackbed construction, the trackbed and track are constructed sequentially. However, the quality of the cast-in-place concrete for the trackbed is difficult to ensure. The track troughs and rails must be repeatedly positioned on the monolithic trackbed, adjusted using height and leveling blocks. This adjustment and positioning is labor-intensive and highly dependent on the operator's skill, resulting in poor construction accuracy. During the actual work process, the applicant considered how to embed the rail bearing groove into the roadbed before casting to reduce the workload of subsequent adjustment and positioning. However, the overall roadbed is basically cast in sections, and the embedded track must also be paved in sections to meet the embedded construction conditions.

[0003] In addition, since the track bed is constructed in sections, the pouring progress of each section varies, and material transfer is often required between sections. If gantry cranes and flatbed trucks are used for both, the material transfer process and the track installation process can only be carried out sequentially, which takes a long time. At the track construction site, material transfer is usually carried out by railcars. The existing track bed construction method does not have the conditions for railcar travel and cannot meet the requirements. For the section-by-section construction process, since the rail bearing groove is embedded in the track bed, it is possible to consider utilizing the embedded structure. Therefore, there is an urgent need for an embedded track integral track bed construction method that can be applied to section-by-section construction. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a method for constructing an integral track bed of an embedded track, which can not only improve the construction accuracy of the integral track bed, reduce the workload of adjustment and positioning, shorten the construction period, but also meet the needs of material transportation when using rail vehicles for segmented construction.

[0005] The object of the present invention is achieved through the following technical solutions: A method for constructing an embedded track integral track bed, comprising the following steps: S1. Determine the reference rail: Select a steel rail that matches the length of the trackbed segment casting as the reference rail for the detachable rail bearing trough frame. It should be noted that the reference rail serves as the positioning reference for the long track bearing trough. The steel rail used for normal operation adopts a fixed length of 25mU75V boltless 60kg / m I-rail. The performance indicators and dimensions meet the requirements of "Steel Rail Part 1: 43kg / m-75kg / m Steel Rail" (TB / T2344.1-2020). The length of the reference rail can be convenient for lifting. The length of the reference rail is 0.5-1.0m shorter than the length of the trackbed segment casting at both ends. In this application, since the reference rail is reused, it is suitable for the section of the trackbed segment casting length. For places where the trackbed segment casting length changes, replacing the reference rail can meet the use requirements; S2. Assemble the detachable rail trough frame: arrange the rail long trough below the reference rail, and the rail long trough is detachably mounted on the reference rail by the first tooling to form a detachable rail trough frame, and then the detachable rail trough frame is fixed to the rail frame, wherein the rail frame adopts existing equipment, and the first tooling uses the reference rail as the positioning reference (the first connecting plate and the bottom of the reference rail are the reference), and uses the second connecting plate as the positioning reference through the rail long trough. The rail frame supports the first tooling to realize the support of the detachable rail trough frame, and will not cause damage to the reference rail and the rail long trough during the lifting and transportation process; the rail long trough is spliced by multiple rail troughs; the rail trough is made of Q235B, which is a steel structure welded part in the factory, with anchor nails on both sides to strengthen the connection with the concrete, and the outer side of the rail trough is sprayed with epoxy iron red primer, and the dry film thickness is greater than 30μm; the existing rail trough is a prefabricated standard part, usually with a length of 2 meters, so it can be spliced to the rail long trough that meets the construction requirements.

[0006] The first tooling is composed of a plurality of evenly distributed connecting frames, each connecting frame including a first connecting plate, a second connecting plate, and a support plate connecting the first connecting plate and the second connecting plate. The reference rail is placed on the first connecting plate, and buckling blocks are provided on both sides of the rail waist of the reference rail. The buckling blocks fix the reference rail to the first connecting plate through buckling bolts, and the second connecting plate is fixed to the long groove of the supporting rail through connecting bolts.

[0007] Preferably, the length of the rail bearing long groove is not less than the segmented casting length of the roadbed, and it is sufficient to facilitate the docking of adjacent rail bearing long grooves before pouring. For example, if the segmented casting length of the roadbed is 20 meters, the rail bearing long groove is spliced to a length of 21 meters, and the two ends are extended by 0.5 meters. When pouring the next section of the roadbed, the excess 0.5 meters can be cut off, and the joints of the two rail bearing long grooves are polished and smooth.

[0008] S3. Hoisting and transportation: Hoist the rail rack to the construction site using a gantry crane and a flatbed truck; S4. Construction preparation before pouring: Install the roadbed pouring template and reinforcement at the predetermined pouring position at the construction site, then adjust the rail frame position until the rail bearing slots on the detachable rail bearing slot frame are at the designed position; S5. Pour concrete on the roadbed according to the design requirements, ensuring that the rail bearing slots of the detachable rail bearing slot frame are embedded in the roadbed; S6. Dismantle the detachable rail support trough frame: After the concrete strength reaches the standard, dismantle the rail frame, reference rail and first tooling in sequence, then transport the rail frame, reference rail and first tooling back, repeat steps S2-S5, and transport the newly assembled detachable rail support trough frame to the construction site of the next section of the track bed and prepare it; S7. Installing a temporary transport channel and pouring the next section: The rails to be used for formal operation are transported to the rail-bearing slots embedded in the trackbed, and the rails are fixed in the rail-bearing slots using temporary fixing components to form temporary embedded tracks. The temporary embedded tracks serve as a temporary transport channel for railcars to travel. Railcars are used to transfer materials between the trackbed sections where the temporary transport channel is installed. Then, the next trackbed section is poured using the newly assembled detachable rail-bearing slot racks. The temporary fixing assembly includes a bottom pad and a fixing tool located on both sides of the rail. The bottom pad is placed on the rail groove, and the bottom of the rail is pressed on the bottom pad to prevent the rail from tipping over when the railcar is running. The fixing tool includes a rail groove pad, a rail pad and a tightening bolt. The rail groove pressing block consists of a pressure plate I pressed on the notch of the rail groove and a positioning plate connected to the pressure plate I. The rail pad consists of multiple pressure plates II arranged along the waist of the rail. A gap is provided between adjacent pressure plates II for operating the tightening bolt. The positioning plate is provided with a second mounting hole. When the rail is locked, one side of the rail pad presses against the waist of the rail and the other side of the rail pad presses against the positioning plate. The tightening bolt passes through the second mounting hole and contacts the side wall of the rail groove. An adjustment shim is also provided between the positioning plate and the rail pad to adjust the distance between the positioning plate and the rail pad.

[0009] S8. Dismantle the temporary transport channel and weld the rails: After the trackbed is cast in sections and the materials between the sections are transferred, the embedded track sections are no longer needed as temporary transport channels. The temporary fixed components are removed, and then the rails of the entire trackbed line are welded. After welding, the rails and rail support grooves are derusted and polished. S9. Install the running track: Set multiple adjustment installation positions on the rail supporting slot, place the rail in the rail supporting slot, and place a first adjustment assembly on each adjustment installation position. Use the first adjustment assembly to adjust the rail height to the design requirement. The adjustment installation positions include several track shrinkage joint reserved points and multiple track gauge adjustment points evenly arranged between adjacent track shrinkage joint reserved points. Then, install noise reduction assemblies on the track shrinkage joint reserved points, and install second adjustment assemblies on the track gauge adjustment points. Use the second adjustment assembly to adjust the rail gauge until the design requirement is met. The first adjustment component consists of an elastic pad, a height adjustment pad and a rail bottom slope pad, wherein the elastic pad is bonded to the rail support groove, the rail bottom slope pad is arranged under the rail and in contact with the rail, and the height adjustment pad is placed between the elastic pad and the rail bottom slope pad and the height of the rail is adjusted by the height adjustment pad. The elastic pad is made of polyurethane microporous foam material, and the elastic pads with different adjustment installation positions can be laid in the rail support groove throughout the entire length, or can be laid in the rail support groove according to the adjustment installation position. The rail bottom slope pad is made of natural rubber, styrene-butadiene rubber or EPDM rubber. The height adjustment pad is made of natural rubber, styrene-butadiene rubber or EPDM rubber, with thickness specifications of 2 / 3 / 4 / 10mm, and is laid on the elastic pad with a spacing of 1m to adjust the rail top elevation. The number of layers of height adjustment pads used in the same position shall not exceed 5 layers.

[0010] The noise reduction components are noise reduction blocks bonded to the rail waists on both sides of the rails, and the noise reduction blocks are made of polyurethane and rubber particles.

[0011] The second adjustment assembly includes an inner wedge block, an outer wedge block, and an adjustment block symmetrically mounted on the rail waist. The inner wedge block is positioned between the adjustment block on the inner rail waist and the sidewall of the rail support slot, while the outer wedge block is positioned between the adjustment block on the outer rail waist and the sidewall of the rail support slot. The inner wedge block, outer wedge block, and adjustment block are made of glass fiber reinforced nylon.

[0012] S10. Pour polymer damping material into the adjusted running track until it meets the design requirements. After pouring, the embedded track integral roadbed is obtained. The polymer damping material adopts two-component polyurethane, which is mixed, poured, and cured. The performance indicators of the polymer damping material meet the use requirements of the track system.

[0013] The rail support slot is provided with a plurality of first mounting holes compatible with the connecting bolts, and the first connecting plate is provided with threaded holes compatible with the retaining bolts. These first mounting holes are blind threaded holes. Because the bottom surface of the rail support slot contacts the concrete during casting, and the first fixture must be removed after casting, blind threaded holes are designed to effectively meet the requirements of use without damaging the concrete surface or the fixture. If through holes are used, concrete will seep into the through holes, compromising removal work.

[0014] Preferably, the center line of the rail-bearing long groove is aligned with the center lines of the reference rail, the temporary transport channel rail, and the walking track rail.

[0015] It can be seen that in this application, the structural design of the detachable rail trough frame is used to make the positioning reference of the rail long trough take the reference rail as the positioning reference. When the roadbed is cast, the rail frame, the reference rail and the first tooling are fixed and can reach the designed position at one time. There is no need for repeated positioning and adjustment later. The rail long trough of the detachable rail trough frame is embedded in the roadbed, and the rail frame, the reference rail and the first tooling are transported back. The new detachable rail trough frame assembly, hoisting and transportation steps and the installation of the temporary transport channel can be carried out simultaneously, which greatly improves the construction efficiency. The temporary transport channel is fixed by tightening the tightening bolts of the temporary fixing assembly. The rail car is a small material transport vehicle and its walking requirements are relatively low. Therefore, its walking requirements can be met by fixing it with a temporary fixing assembly. After the material transfer is completed, the temporary transport channel is replaced with a normal walking track, which not only meets the temporary material transfer requirements, but also ensures the installation of the normal walking track.

[0016] The beneficial effects of the present invention are as follows: (1) the rail trough frame adopts a detachable structure, and the rail trough is positioned by the first tooling. After positioning and adjustment before the roadbed is cast, the rail trough (track) is embedded in the roadbed after casting, eliminating the steps of multiple adjustments after casting in the existing means, improving the construction accuracy of the entire roadbed, and reducing the workload of adjustment and positioning; (2) the assembly of the detachable rail trough frame and the installation of the track can be carried out at the same time, greatly shortening the construction period; (3) the temporary transport channel and the normal walking track are replaced on the embedded rail trough, meeting the needs of material transportation when using rail vehicles for segmented construction, and being easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a construction flow chart of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the detachable rail support groove rack of the present invention; Figure 3 This is a schematic diagram of the installation of a temporary transport channel of the present invention; Figure 4 A schematic diagram of the arrangement of the temporary fixing assembly of the present invention; Figure 5 This is a structural schematic diagram of the reserved points for track contraction joints after casting in the present invention; Figure 6 This is a structural schematic diagram of the track gauge adjustment points after casting in the present invention; Figure 7 This is a schematic diagram of the arrangement of the track shrinkage joint reserved points and the track gauge adjustment points of the present invention; Figure 8 This is a cross-sectional view of the integral roadbed of the embedded track after casting of the present invention; Figure 9 This is a partial plan view of the integral roadbed of the embedded track after casting of the present invention is completed.

[0018] In the figure, 1-first tooling, 2-temporary fixing assembly, 3-first adjustment assembly, 4-noise reduction assembly, 5-second adjustment assembly, 101-first connecting plate, 102-second connecting plate, 103-support plate, 104-buckle block, 105-buckle bolt, 106-first mounting hole, 107-connecting bolt, 108-threaded hole, 201-bottom pad, 202-rail bearing long groove pad, 203-rail pad, 204- Pressure plate I, 205-positioning plate, 206-pressure plate II, 207-tightening bolt, 208-gap, 209-second mounting hole, 210-adjusting gasket, 301-elastic pad, 302-height adjustment pad, 303-rail bottom slope pad, 501-inner wedge block, 502-outer wedge block, 503-adjusting block, 6-reference rail, 7-rail bearing long groove, 8-rail rack, 9-rail, 10-polymer damping material filler. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the accompanying drawings and embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0020] like Figure 1 As shown, a method for constructing an embedded track integral track bed comprises the following steps: S1. Determine the reference rail: Select a steel rail that matches the segmented casting length of the track bed as the reference rail for the detachable rail trough frame.

[0021] S2. Assemble the detachable rail support rack: Figure 2As shown, a rail groove 7 is arranged below the reference rail 6, and the rail groove 7 is detachably mounted on the reference rail 6 by the first tooling 1 to form a detachable rail groove frame, and then the detachable rail groove frame is fixed to the rail frame 8; specifically, the rail grooves 7 are assembled on the ground, and the rail grooves 7 are grouped in 10m+10m+4m groups, and each group consists of 5 pairs + 5 pairs + 2 pairs of rail grooves (a total of 24 rail grooves, 12 for each left and right rail) and 30 pieces of the first tooling 1. The end less than 2m is measured according to the actual length and a portion of the rail groove 7 for later installation is reserved. The bottom of the rail groove 7 is connected and fixed to the first tooling 1 by connecting bolts 107 (M12), the reference rail 6 is placed on the top of the first tooling 1 and the reference rail 6 is fixed to the upper part of the rail groove 7 by the corresponding pressing block 104 through the pressing bolts 105. The gauge of the left and right reference rails 6 is measured by a track ruler. After the distance meets the requirements, the first tooling 1 can be fixed.

[0022] The first fixture 1 is composed of a plurality of evenly spaced connecting frames, each of which includes a first connecting plate 101, a second connecting plate 102, and a support plate 103 connecting the first connecting plate 101 and the second connecting plate 102. The reference rail 6 is placed on the first connecting plate 101. A clamping block 104 is provided on each side of the rail waist of the reference rail 6. The clamping block 104 secures the reference rail 6 to the first connecting plate 101 via clamping bolts 105. The second connecting plate 102 is secured to the support rail slot 7 via connecting bolts 107. The support rail slot 7 is provided with a plurality of first mounting holes 106 that match the connecting bolts 107. The first connecting plate 101 is provided with threaded holes 108 that match the clamping bolts 105. The first mounting holes 106 are blind threaded holes.

[0023] S3. Hoisting and transportation: Hoist and transport the rail rack (including the detachable rail groove rack) to the construction site.

[0024] S4. Construction preparation before pouring: Install the roadbed pouring formwork and reinforcement at the predetermined pouring position at the construction site, and then adjust the position of the rail frame until the rail bearing slots on the detachable rail bearing slot frame are at the designed position.

[0025] S5. Pour concrete on the roadbed according to the design requirements, ensuring that the rail troughs of the detachable rail trough rack are embedded in the roadbed. During the concrete pouring process, the vibration of the bottom of the rail trough should be strengthened to ensure that the concrete at the bottom of the rail trough is fully filled. In order to prevent the rail troughs from being contaminated during the concrete pouring process, the rail troughs must be filled and covered with plastic sheets or discarded geotextiles before pouring.

[0026] S6. Dismantle the detachable rail trough frame: After the concrete strength reaches the standard, dismantle the rail frame, reference rail and first tooling 1 in turn, then transport the rail frame, reference rail and first tooling 1 back, repeat steps S2-S5, and transport the newly assembled detachable rail trough frame to the construction site of the next section of the track bed and prepare it.

[0027] S7, installation of temporary transport channel and pouring of next section: Figure 3-Figure 4 As shown, the steel rails 9 for formal operation are transported to the rail-bearing long grooves 7 embedded in the roadbed, and the steel rails 9 are fixed in the rail-bearing long grooves 7 by means of temporary fixing components 2 to form temporary embedded tracks. The temporary embedded tracks are temporary transport channels for rail vehicles to travel. The rail vehicles are used to transfer materials between sections of the roadbeds after the temporary transport channels are installed, and then the newly assembled detachable rail-bearing groove racks are used to cast the next section of the roadbed.

[0028] The temporary fixing assembly 2 includes a bottom pad 201 and fixing fixtures located on both sides of the rail 9. The bottom pad 201 is placed on the rail groove, and the bottom of the rail is pressed on the bottom pad 201. The fixing fixture includes a rail groove pad 202, a rail pad 203 and a tightening bolt 207. Among them, the rail groove pressing block 202 is composed of a pressing plate 1204 pressed on the notch of the rail groove 7 and a positioning plate 205 connected to the pressing plate 1204. The rail pad 203 consists of multiple pressure plates II 206 arranged along the rail waist. A gap 208 is provided between adjacent pressure plates II 206 for operating the tightening bolts 207. The positioning plate 205 is provided with a second mounting hole 209. When the rail 9 is locked, one side of the rail pad 203 presses against the rail waist, and the other side of the rail pad 203 presses against the positioning plate 205. The tightening bolts 207 pass through the second mounting hole 209 and contact the sidewall of the rail support slot 7. An adjustment shim 210 is also provided between the positioning plate 205 and the rail pad 203.

[0029] Preferably, the thickness of the bottom pad 201 does not exceed 30 cm.

[0030] S8. Dismantle the temporary transport channel and weld the rails: After the trackbed is cast in sections and the materials between the sections are transferred, the embedded track section is no longer needed as a temporary transport channel. Remove the temporary fixing component 2, and then weld the rails of the entire trackbed line. After welding, remove the rust on the rails and the rail-supporting grooves.

[0031] Use a handheld grinder or other rust removal equipment to grind and remove rust from the rails and rail-supporting grooves, and the bonding surface between the rails and the polymer damping material (except the rail bottom). If there are too many concrete blocks or floating slurry inside the rail-supporting grooves, they need to be cleaned in advance.

[0032] S9. Install the walking track: Figure 5-Figure 7 As shown, a plurality of adjustment installation positions are provided on the rail supporting groove 7, and the rail is placed in the rail supporting groove. A first adjustment component 3 is arranged on each adjustment installation position, and the rail height is adjusted to the design requirement by the first adjustment component 3. The adjustment installation position includes a plurality of track contraction joint reserved points a, and a plurality of gauge adjustment points b evenly arranged between adjacent track contraction joint reserved points a. Then, the noise reduction component 4 is installed on the track contraction joint reserved points a, and the second adjustment component 5 is installed on the gauge adjustment points b. The rail gauge is adjusted by the second adjustment component 5 until the design requirement is met. It should be noted that since the polymer damping material is cast as a whole in the rail supporting groove 7, the track contraction joint reserved points a will be reserved during the design, and the gauge adjustment points b are confirmed on site according to the length of the track. The distance between the gauge adjustment points b can be evenly arranged according to the actual situation, generally at a spacing of 1-1.5m.

[0033] The first adjustment assembly 3 consists of an elastic pad 301, a height adjustment pad 302, and a rail bottom slope pad 303. The elastic pad 301 is bonded to the rail support groove 7, the rail bottom slope pad 303 is arranged under the rail and contacts the rail 9, and the height adjustment pad 302 is placed between the elastic pad 301 and the rail bottom slope pad 303. The height of the rail is adjusted by the height adjustment pad 302. The rail bottom slope pad 303 should be laid so that the thicker side is on the outer side of the track.

[0034] The second adjustment assembly 5 includes an inner wedge block 501, an outer wedge block 502 and an adjustment block 503 symmetrically installed at the waist of the rail 9. The inner wedge block 501 is placed between the adjustment block 503 at the inner waist of the rail 9 and the side wall of the rail supporting groove 7, and the outer wedge block 502 is placed between the adjustment block 503 at the outer waist of the rail 9 and the side wall of the rail supporting groove 7.

[0035] S10, pouring polymer damping material into the adjusted running track until it meets the design requirements, and after the polymer damping material is solidified, a polymer damping material filler 10 is formed between the rail groove 7 and the rail 9. Figure 8-Figure 9 As shown, after pouring, the embedded track integral roadbed is obtained. The polymer damping material uses polyurethane A and B components. When pouring, pour one bucket of component B and one bucket of component A into the mixing bucket respectively. Use a stirrer to stir thoroughly for 2 minutes. During stirring, the stirring head must not be exposed to the surface of the material to avoid introducing a large number of bubbles. Pouring should start from one side of the rail 9. After the polymer damping material overflows from the bottom of the rail on the other side, pouring can be carried out on the other side to prevent air pockets at the bottom of the rail. During pouring, avoid overflowing of the material from the rail groove. The pouring height on both sides of the rail is 5 cm below the rail surface. After pouring, use a brush to continuously clean the bubbles on the surface of the polymer elastomer to ensure surface quality. The polymer damping material is fluid. The areas with large longitudinal slope of the line should be poured multiple times until the surface is smooth.

[0036] The foregoing description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the appended claims.

Claims

1. A method for constructing an integral track bed of an embedded track, characterized in that: The following steps are involved: S1. Determine the reference rail: Select a rail that matches the length of the trackbed segment casting as the reference rail for the detachable rail trough frame; S2, assembling the detachable rail support groove rack: arranging the rail support long groove below the reference rail, the rail support long groove is detachably mounted on the reference rail through the first tooling (1) to form a detachable rail support groove rack, and then fixing the detachable rail support groove rack on the rail rack; S3. Hoisting and transportation: Hoist and transport the rail rack to the construction site; S4. Construction preparation before pouring: Install the roadbed pouring template and reinforcement at the predetermined pouring position at the construction site, then adjust the rail frame position until the rail bearing slots on the detachable rail bearing slot frame are at the designed position; S5. Pour concrete on the roadbed according to the design requirements, ensuring that the rail bearing slots of the detachable rail bearing slot frame are embedded in the roadbed; S6. Dismantle the detachable rail support trough frame: After the concrete strength reaches the standard, dismantle the rail frame, the reference rail and the first tooling (1) in sequence, then transport the rail frame, the reference rail and the first tooling (1) back, repeat steps S2-S5, and transport the newly assembled detachable rail support trough frame to the construction site of the next section of the track bed and prepare for it; S7, installing a temporary transport channel and pouring the next section: transporting the steel rails for formal operation to the rail-bearing long groove embedded in the roadbed, and fixing the steel rails in the rail-bearing long groove by means of a temporary fixing assembly (2) to form a temporary embedded track. The temporary embedded track is a temporary transport channel for the railcar to travel. The railcar is used to transfer materials between sections of the roadbed after the temporary transport channel is installed, and then the next section of the roadbed is poured using the newly assembled detachable rail-bearing groove rack; S8. Dismantle the temporary transport channel and weld the rails: After the trackbed is cast in sections and the materials between the sections are transferred, the embedded track section is no longer needed as a temporary transport channel. The temporary fixed assembly (2) is removed, and then the rails of the entire trackbed line are welded. After welding, the rails and the rail-supporting grooves are derusted and polished. S9, installing the running track: a plurality of adjustment installation positions are set on the rail supporting groove, and the rail is placed in the rail supporting groove. A first adjustment component (3) is arranged on each adjustment installation position, and the height of the rail is adjusted to the design requirement by the first adjustment component (3). The adjustment installation position includes a plurality of track shrinkage joint reserved points and a plurality of track gauge adjustment points evenly arranged between adjacent track shrinkage joint reserved points. Then, a noise reduction component (4) is installed on the track shrinkage joint reserved points, and a second adjustment component (5) is installed on the track gauge adjustment point. The track gauge of the rail is adjusted by the second adjustment component (5) until the design requirement is met; S10. Pouring polymer damping material into the adjusted running track until it meets the design requirements, and obtaining an integral track bed after the pouring is completed.

2. The method for constructing an embedded track integral track bed according to claim 1, characterized in that: The first tooling (1) is composed of a plurality of evenly distributed connecting frames, each connecting frame comprising a first connecting plate (101), a second connecting plate (102), and a support plate (103) connecting the first connecting plate (101) and the second connecting plate (102); the reference rail is placed on the first connecting plate (101); buckling blocks (104) are provided on both sides of the waist of the reference rail; the buckling blocks (104) fix the reference rail to the first connecting plate (101) via buckling bolts (105); and the second connecting plate (102) is fixed to the long groove of the supporting rail via connecting bolts (107).

3. The method for constructing an embedded track integral track bed according to claim 1, characterized in that: The support rail long groove is provided with a plurality of first mounting holes (106) matching the connecting bolts (107), and the first connecting plate (101) is provided with threaded holes (108) matching the pressing bolts (105).

4. A method for constructing an embedded track integral track bed according to claim 3, characterized in that: The first mounting hole (106) is a blind threaded hole.

5. The method for constructing an embedded track integral track bed according to claim 1, characterized in that: The temporary fixing assembly (2) includes a bottom pad (201) and fixing fixtures located on both sides of the rail, the bottom pad (201) is placed on the rail support long groove, and the bottom of the rail is pressed on the bottom pad (201), and the fixing fixture includes a rail support long groove pad (202), a rail pad (203) and a tightening bolt (207), wherein the rail support long groove pressing block (202) is composed of a pressing plate I (204) pressed on the notch of the rail support long groove and a positioning plate (205) connected to the pressing plate I (204), and the rail The pad (203) is composed of a plurality of pressing plates II (206) arranged along the waist of the rail, and a gap (208) for operating the tightening bolt (207) is provided between adjacent pressing plates II (206). The positioning plate (205) is provided with a second mounting hole (209). When the rail is locked, one side of the rail pad (203) presses against the waist of the rail, and the other side of the rail pad (203) presses against the positioning plate (205). The tightening bolt (207) passes through the second mounting hole (209) and contacts the side wall of the rail supporting groove.

6. The method for constructing an embedded track integral track bed according to claim 5, characterized in that: An adjustment gasket (210) is further provided between the positioning plate (205) and the rail pad (203).

7. The method for constructing an embedded track integral track bed according to claim 1, characterized in that: The first adjustment assembly (3) is composed of an elastic pad (301), a height-adjusting pad (302), and a rail bottom slope pad (303), wherein the elastic pad (301) is bonded to the rail support long groove, the rail bottom slope pad (303) is arranged under the rail and contacts the rail, and the height-adjusting pad (302) is placed between the elastic pad (301) and the rail bottom slope pad (303) and the height of the rail is adjusted by the height-adjusting pad (302).

8. The method for constructing an embedded track integral track bed according to claim 1, characterized in that: The noise reduction component (4) is a noise reduction block bonded to the rail waists on both sides of the rail.

9. The method for constructing an embedded track integral track bed according to claim 1, characterized in that: The second adjustment assembly (5) comprises an inner wedge block (501), an outer wedge block (502), and an adjustment block (503) symmetrically mounted on the rail waist, wherein the inner wedge block (501) is placed between the adjustment block (503) on the inner rail waist and the side wall of the rail supporting long groove, and the outer wedge block (502) is placed between the adjustment block (503) on the outer rail waist and the side wall of the rail supporting long groove.

10. A method for constructing an embedded track integral track bed according to any one of claims 1 to 9, characterized in that: The rail supporting long groove is formed by splicing a plurality of rail supporting grooves.

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