Prefabricated slab track structure and method for installing a prefabricated slab track structure

Abstract

A prefabricated slab track structure and a prefabricated slab track structure installation method, the prefabricated slab track structure comprises a base and a distance control support, two adjustable sleeper beams and a prefabricated track slab arranged on the base in sequence, the base is concavely provided with a U-shaped installation groove, the distance control support comprises a distance adjusting part and two limiting parts at two ends, the two adjustable sleeper beams are oppositely distributed with respect to the middle line of the U-shaped installation groove and abut against the limiting parts on the side, the bottom of the adjustable sleeper beam is concavely provided with a recessed groove with respect to the distance adjusting part, the adjustable sleeper beam forms an infinitely adjustable height inclined surface facing the prefabricated track slab, the prefabricated track slab is arranged on the infinitely adjustable height inclined surfaces of the two adjustable sleeper beams and the lower surface is correspondingly attached to the two infinitely adjustable height inclined surfaces, and a transverse stress plate is filled between the side wall of the U-shaped installation groove and the limiting part, the prefabricated slab track structure of the present application adopts prefabricated parts except that the base is cast in situ, is easy to construct, can realize real-time infinitely adjustable height of the prefabricated track slab, has high installation precision and effectively reduces the cast in situ construction difficulty of the base.

Description

Technical Field

[0001] This invention relates to the field of ballastless track technology, specifically to a precast slab track structure and a method for installing the precast slab track structure. Background Technology

[0002] Currently, ballastless track is mainly divided into two categories: cast-in-place ballastless track and precast ballastless track. Traditional precast ballastless track structures include... Figure 1 As shown, the structure consists of rails and fasteners 61, precast track slabs 62, self-compacting concrete filling layer 63, isolation layer 64, and reinforced concrete base 65. The bottom of the precast track slab 62 has U-shaped connecting steel bars for connection and fixation with the self-compacting concrete filling layer 63. During construction, the precast track slab 62 needs to be hoisted to the installation height, and concrete is poured downwards through the pre-reserved concrete pouring holes on the precast track slab 62 to form the self-compacting concrete filling layer 63. Simultaneously, the self-compacting concrete filling layer 63 forms a limiting boss 66 that cooperates with the base. The construction of this traditional precast track slab structure requires hoisting the precast track slab to the installation height and pouring concrete in place, which is cumbersome, has a long construction period, and can only be adjusted by pouring the filling layer. The elevation accuracy of the precast track slab is greatly affected by the in-situ pouring construction, requiring high precision in the in-situ concrete construction. The patent application No. 202110255437X, entitled "A Combined Track Slab, Precast Slab Track System and its Installation and Construction Method," provides a combined track slab. The combined track slab includes a track slab, which is entirely precast, and a limiting boss. The limiting boss is connected to the bottom of the track slab, and the base is a cast-in-place base used to fix and support the combined track slab. Since the combined track slab is directly fixed in the cast-in-place base, there is no need to pour a filling layer, which effectively reduces the process steps of on-site concrete pouring. However, the combined track slab in this patent is entirely precast, and the height of the precast structure is fixed and cannot be adjusted. The cast-in-place base requires high construction precision to meet the installation requirements, and the elevation of the precast track slab is still greatly affected by the cast-in-place construction, making it difficult to control the precision. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a precast track structure and a precast track structure installation method that can realize pre-adjustment and real-time stepless height adjustment of precast track slabs and is easy to construct.

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0005] According to one aspect of the present invention, a precast track structure is provided, including a base and a distance control bracket, two adjustable sleeper beams, and a precast track slab sequentially disposed on the base. The base is recessed with a U-shaped mounting groove extending along the track direction. The distance control bracket includes an adjustable part disposed along the width direction of the U-shaped mounting groove and two limiting parts connected to both ends of the adjustable part. The two adjustable sleeper beams are distributed opposite each other across the centerline of the U-shaped mounting groove and respectively abut against the limiting part on one side. The bottom of the adjustable sleeper beam is recessed with a clearance groove relative to the adjustable part. The adjustable sleeper beams form an infinitely adjustable height slope extending downward from the edge of the U-shaped mounting groove towards the center on the precast track slab. The precast track slab is placed on the infinitely adjustable height slope of the two adjustable sleeper beams, and the lower surface of the precast track slab is correspondingly attached to the two infinitely adjustable height slopes. A transverse force-bearing plate is filled between the side wall of the U-shaped mounting groove and the limiting part.

[0006] In one embodiment, the adjusting part includes a locking plate in the middle and two adjusting arms on both sides. The locking plate has two waist holes opposite to the two adjusting arms. Each adjusting arm has an adjusting waist hole corresponding to the waist hole. The relative fixed position of the adjusting waist hole of each adjusting arm and the corresponding waist hole is used to adjust the length of the adjusting part along the width direction of the U-shaped mounting groove, thereby adjusting the relative distribution distance of the two adjustable pillow beams.

[0007] In one embodiment, each of the adjusting arms has a scale line along the edge of the adjusting waist hole, the scale line being used to indicate the installation height of the prefabricated track slab relative to the base.

[0008] In one embodiment, a centerline boss is provided on the bottom of the U-shaped mounting groove along the centerline of the track, and a matching positioning groove is provided in the middle of the adjusting part of the distance control bracket relative to the centerline boss so that the midpoint of the adjusting part is positioned in the center of the U-shaped mounting groove.

[0009] In one embodiment, the adjustable sleeper beam has a positioning boss protruding on the infinitely height-adjustable inclined surface for guiding the prefabricated track slab to slide up and down. The positioning boss is perpendicular to a set of opposite sides of the infinitely height-adjustable inclined surface, and the lower surface of the prefabricated track slab has a matching sliding groove recessed relative to the positioning boss.

[0010] In one embodiment, an elastic buffer pad layer is laid on the inner wall of the sliding channel.

[0011] In one embodiment, the two adjustable pillow beams that are distributed opposite to each other are fixedly connected by a pre-embedded sleeve and a connecting rod.

[0012] In one embodiment, an elastic material layer is sandwiched between the lower surface of the precast track slab and the infinitely adjustable inclined surface of the adjustable sleeper beam.

[0013] According to another aspect of the present invention, a method for installing a precast slab track structure is provided, for installing the precast slab track structure as described in any of the preceding claims, comprising:

[0014] S1: The foundation is obtained through cast-in-place construction;

[0015] S2: Transport the prefabricated control support, adjustable sleeper beam, and prefabricated track slab to the construction site;

[0016] S3: Adjust the length of the selected distance control bracket according to the installation elevation requirements of the precast track slabs at the construction site;

[0017] S4: Install the distance control bracket onto the base;

[0018] S5: Hoist the two adjustable bolster beams onto the distance control bracket;

[0019] S6: Apply a lateral force to each of the two adjustable pillow beams so that the two adjustable pillow beams abut against the limiting part on one side respectively;

[0020] S7: A transverse load-bearing plate is filled between the side wall of the U-shaped mounting groove and the limiting part;

[0021] S8: Hoist the precast track slab onto the two adjustable sleeper beams.

[0022] In one embodiment, S7 includes: selecting a transverse load-bearing plate of appropriate thickness from prefabricated transverse load-bearing plates of different thicknesses for filling according to the gap width between the side wall of the U-shaped mounting groove and the limiting part; or, constructing the transverse load-bearing plate in place between the side wall of the U-shaped mounting groove and the limiting part.

[0023] Compared with existing technologies, the precast track structure provided by this invention has the following advantages: Except for the foundation, which requires in-situ casting, the control bracket, adjustable sleeper beam, and precast track slab are all precast components, simplifying the construction process and significantly shortening the construction cycle compared to traditional structures. Through the cooperation of the adjustable sleeper beam with a stepless height adjustment ramp and the control bracket, pre-adjustment and real-time stepless height adjustment of the precast track slab installation can be achieved. Furthermore, based on the adjustable control bracket, the height of the precast track slab can be easily adjusted in real time, simplifying operation and mitigating the impact of the in-situ casting base construction accuracy on the installation elevation accuracy of the precast track slab. This effectively reduces the difficulty of in-situ casting of the foundation and significantly improves the construction accuracy of the precast track structure. The precast track structure construction method based on this invention has the advantages of allowing for pre-adjustment and real-time stepless height adjustment of the precast track slab installation height, simple procedures, short construction cycle, and high installation accuracy.

[0024] Other advantages of the present invention will be described in detail in the following detailed description section with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of a traditional prefabricated ballastless track structure in the existing technology.

[0028] Figure 2 This is a three-dimensional structural diagram of an embodiment of a precast slab track structure according to the present invention;

[0029] Figure 3 for Figure 2 The diagram shows a precast slab track structure viewed from the front.

[0030] Figure 4 for Figure 2 The diagram shows the structural schematic of the spacing control bracket in the precast slab track structure.

[0031] Figure 5 for Figure 2 A schematic diagram of the precast slab track structure in which the distance control bracket is installed on the base.

[0032] Figure 6 for Figure 2 The diagram shows a three-dimensional structure of the adjustable sleeper beam in the precast slab track structure.

[0033] Figure 7 for Figure 6 The diagram shows the structure of the adjustable pillow beam viewed from below.

[0034] Figure 8 for Figure 2 A schematic diagram of the fixed connection between two adjustable sleeper beams in the precast slab track structure shown.

[0035] Figure 9 for Figure 2 A three-dimensional structural diagram of the precast track slab in the precast track structure shown.

[0036] Figure 10 This is a schematic diagram of another embodiment of the distance control bracket;

[0037] Figure 11 This is a three-dimensional structural diagram of a precast slab track structure applied to a tunnel according to the present invention;

[0038] Figure 12 for Figure 1 The flowchart shows the installation method of the precast slab track structure.

[0039] Explanation of reference numerals in the attached drawings: 1. Base; 11. U-shaped mounting groove; 13. Centerline boss; 15. Lateral shoulder; 2. Distance control bracket; 21. Adjustment part; 211. Locking plate; 213. Adjusting arm; 215. Waist hole; 217. Adjustment waist hole; 22. Limiting part; 23. Positioning groove; 3. Adjustable sleeper beam; 31. Leaving groove; 33. Infinitely adjustable height slope; 35. Positioning boss; 37. Connecting rod; 4. Precast track slab; 41. Sliding through groove; 5. Lateral load-bearing plate; 61. Rail and fasteners; 62. Precast track slab; 63. Self-compacting concrete filling layer; 64. Isolation layer; 65. Reinforced concrete base; 66. Limiting boss. Detailed Implementation

[0040] To further explain the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings, in which the same reference numerals denote the same parts.

[0041] See also Figure 2-9 This embodiment provides a precast track structure, including a base 1 and a distance control bracket 2, two adjustable sleeper beams 3, and a precast track slab 4 sequentially disposed on the base 1. The base 1 is recessed with a U-shaped mounting groove 11 extending along the track direction. The distance control bracket 2 includes an adjustment part 21 disposed along the width direction of the U-shaped mounting groove 11 and two limiting parts 22 connected to both ends of the adjustment part 21. The bottom of the U-shaped mounting groove 11 is provided with a centerline boss 13 protruding along the centerline of the track. The middle part of the adjustment part 21 of the distance control bracket 2 is provided with a matching positioning groove 23 relative to the centerline boss 13 so that the midpoint of the adjustment part 21 is positioned in the center of the U-shaped mounting groove 11. A transverse force-bearing plate 5 is filled between the side wall of the U-shaped mounting groove 11 and the limiting part 22.

[0042] In this embodiment, the distance control bracket 2 is a prefabricated component with fixed dimensions. The selected distance control bracket 2 can be determined in advance based on the circuit drawings. For example, if a certain section of the line is a straight section without any undulations along the line, then the distance control bracket 2 can be used. Figure 4 The non-adjustable bracket shown is designed to reduce costs; similarly, multiple brackets of different sizes can be prefabricated simultaneously. Figure 4 The distance control bracket 2 shown is used to deal with the unevenness of the U-shaped installation groove 11 caused by on-site construction.

[0043] like Figure 10 As shown, the distance control bracket 2 can also be designed as an adjustable structure. The distance adjustment part 21 includes a locking plate 211 in the middle and two adjusting arms 213 on both sides. The locking plate 211 has two waist holes 215 opposite to the two adjusting arms 213. Each adjusting arm 213 has a distance adjustment waist hole 217 corresponding to the waist hole 215. Each adjusting arm 213 has a scale line along the edge of the distance adjustment waist hole 217. The scale line is used to directly indicate the installation height of the precast track slab 4 relative to the base 1, which is convenient for real-time adjustment. Due to factors such as the accuracy of the cast-in-place construction of the base 1 and the flatness of the roadbed, the on-site installation may require the adjustable sleeper beam 3 to have multiple height adjustment ranges. Figure 10 The adjustable distance control bracket 2 shown allows for real-time adjustment of the height adjustment on the construction site. The relative positions of the adjustment slots 217 and corresponding slots 215 on each adjusting arm 213 are fixed by bolts. Using structural parameters such as the height and slope of the adjustable bolster beam 3, the scale position for fixing the adjustment slots 217 and 215 can be calculated. During construction, simply align the locking plate 211 with the target height adjustment scale, install the adjusted distance control bracket 2 on the centerline boss of the base 1, and then install the adjustable bolster beam 3 and the prefabricated track slab 4 to achieve the target installation height. In practical applications, the adjustment range can be pre-designed using route drawings, and the lengths of the slots on the locking plate 211 and the adjusting arms 213 on both sides can be precisely adjusted to compensate for differences caused by on-site construction.

[0044] In this embodiment, the base 1 is a cast-in-place structure. Compared with the traditional reinforced concrete base, a centerline boss 13 and a transverse shoulder 15 (the inner wall of the transverse shoulder 15 is the side wall of the U-shaped mounting groove 11) are added. The centerline boss 13 is located at the center of the track and is used for positioning and installation of the distance control bracket 2. During the construction process, after the adjustable sleeper beam 3 is installed, a load-bearing material, namely a transverse load-bearing plate 5, needs to be filled between the transverse shoulder 15 and the adjustable sleeper beam 3. The filling material can be a rigid material, such as concrete or high-strength nylon, or an elastic material, such as high-hardness rubber or polyurethane vibration damping layer. The adjustable sleeper beam 3 and the precast track slab 4 are in inclined contact. The force exerted by the precast track slab 4 on the adjustable sleeper beam 3 can be decomposed into vertical pressure and transverse force. The transverse load-bearing plate 5 is used to effectively offset the transverse force of the precast track slab 4 to both sides.

[0045] In this embodiment, the adjustable bolster beam 3 is a prefabricated wedge-shaped structure. The two adjustable bolster beams 3 are distributed opposite each other along the centerline of the U-shaped mounting groove 11 and respectively abut against the limiting part 22 on one side. The bottom of the adjustable bolster beam 3 is recessed with a clearance groove 31 opposite to the adjustment part 21. The adjustable bolster beam 3 forms an infinitely adjustable height slope 33 extending obliquely downward from the edge of the U-shaped mounting groove 11 towards the center facing the prefabricated track plate 4. The prefabricated track plate 4 is placed on the infinitely adjustable height slope 33 of the two adjustable bolster beams 3, and the lower surface of the prefabricated track plate 4 is correspondingly attached to the two infinitely adjustable height slope 33. Furthermore, the infinitely adjustable height slope 33 of the adjustable bolster beam 3 is provided with two positioning bosses 35 for guiding the prefabricated track plate 4 to slide up and down. The positioning bosses 35 are perpendicular to a set of opposite sides of the infinitely adjustable height slope 33. The lower surface of the prefabricated track plate 4 is recessed with two matching sliding through grooves 41 opposite to the two positioning bosses 35. The adjustable sleeper beam 3 has a stepless height adjustment ramp 33 and a relief groove 31 at its bottom. The positioning ramp 35 engages with the sliding groove 41 on the lower surface of the precast track slab 4 to position and control the longitudinal displacement of the precast track slab 4. The relief groove 31 engages with the distance control bracket 2 for positioning and centering of the adjustable sleeper beam 3. The distance control bracket 2 matches the centerline ramp 13 of the U-shaped mounting groove 11 via the positioning groove 23. Then, the relief groove 31 at the bottom of the adjustable sleeper beam 3 engages with the distance control bracket 2 to ensure that the precast track slab 4 is always installed at the centerline position of the track. In other embodiments, the adjustable sleeper beam 3 can also be triangular or other shapes, as long as the upper surface of the adjustable sleeper beam 3 is designed as a ramp to achieve stepless height adjustment of the precast track slab 4.

[0046] In this embodiment, the length of a prefabricated track slab 4 unit is generally around 3.6-6m, and many prefabricated track slabs 4 are used on a section of track. The prefabricated track slab 4 is a prefabricated component, and the two sliding grooves 41 on its lower surface are used to cooperate with the adjustable sleeper beam 3. The inner wall of the sliding groove 41 can be further laid with an elastic buffer layer, such as a polyurethane pad, thereby playing a certain role in vibration reduction and buffering between the prefabricated track slab 4 and the adjustable sleeper beam 3. Figure 8 As shown, the two adjustable bolster beams 3 are also fixedly connected by connecting rods 37 in the form of pre-embedded sleeves. The connecting rods 37 are high-strength screws or steel pipes to enhance the overall structural strength of the two adjustable bolster beams 3.

[0047] In other embodiments, instead of setting a sliding groove 41 and a positioning boss 35 between the lower surface of the precast track slab 4 and the infinitely adjustable height slope 33 of the adjustable sleeper beam 3, a large area of ​​elastic material can be sandwiched between the lower surface of the precast track slab 4 and the infinitely adjustable height slope 33 of the adjustable sleeper beam 3, which can easily transform it into a vibration-damping track. Figure 11 The diagram shows the application of the precast slab track structure of the present invention in a tunnel.

[0048] like Figure 12 As shown, the installation method of the precast slab track structure in this embodiment includes:

[0049] S1: The foundation 1 is obtained by cast-in-place construction. The foundation 1 is cast on site, and its accuracy is mainly guaranteed by on-site construction. After the foundation 1 is cast and the formwork is removed, the precast structure is hoisted.

[0050] S2: Transport the prefabricated control distance support 2, adjustable sleeper beam 3, and prefabricated track slab 4 to the construction site.

[0051] S3: Adjust the length of the selected control bracket 2 according to the installation elevation requirements of the precast track slab 4 at the construction site. Adjusting the length of the selected control bracket 2 can be done by selecting a suitable size control bracket 2 from several precast control brackets of different fixed sizes, or by using... Figure 10 The adjustable distance control bracket 2 shown can be adjusted to the target size by combining the height, slope and other structural parameters of the adjustable sleeper beam 3 or by using the scale line on the adjusting arm 213 of the distance control bracket 2 that directly indicates the installation height of the precast track slab 4.

[0052] S4: Install the distance control bracket 2 onto the base 1;

[0053] S5: Hoist the two adjustable sleeper beams 3 onto the distance control bracket 2;

[0054] S6: Apply lateral force to the two adjustable pillow beams 3 respectively so that the two adjustable pillow beams 3 abut against the limiting part 22 on their respective sides;

[0055] S7: Fill the space between the side wall of the U-shaped mounting groove 11 and the limiting part 22 with a transverse load-bearing plate 5;

[0056] S8: Hoist the precast track slab 4 onto the two adjustable sleeper beams 3.

[0057] In this embodiment, the specific construction method of step S7 can be: according to the interval width between the side wall of the U-shaped installation groove 11 and the limiting part 22, select a suitable transverse force plate 5 from the prefabricated transverse force plates 5 of different thicknesses for filling, to ensure that the transverse force plate 5 is fully filled; or it can be: the transverse force plate 5 is obtained by cast-in-place construction between the side wall of the U-shaped installation groove 11 and the limiting part 22.

[0058] The precast track structure installation method in this embodiment allows for pre-adjustment and real-time stepless adjustment of the installation height of the precast track slab. The influence of the construction accuracy of the cast-in-place base on the elevation of the precast track slab can be adjusted by the distance control bracket and adjustable sleeper beam. The construction difficulty of the cast-in-place base is reduced, the process is simple, the construction cycle is short, and the installation accuracy is high.

[0059] The precast track structure of this invention, except for the foundation which requires in-situ casting, consists of precast components including the spacing control bracket, adjustable sleeper beam, and precast track slab. Compared to traditional structures, this simplifies the construction process and significantly shortens the construction cycle. Through the cooperation of the adjustable sleeper beam with a stepless height adjustment ramp and the spacing control bracket, pre-adjustment and real-time stepless height adjustment of the precast track slab installation can be achieved. Furthermore, based on the adjustable spacing control bracket, the height of the precast track slab can be easily adjusted in real time. This simple operation reduces the impact of the in-situ casting base construction accuracy on the installation elevation accuracy of the precast track slab, effectively reducing the difficulty of in-situ casting of the foundation.

[0060] The above description is merely a specific embodiment of the present invention. It should be noted that any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the protection scope of the present invention.

Claims

1. A precast slab track structure, characterized in that, The track includes a base (1) and a distance control bracket (2), two adjustable sleeper beams (3), and a precast track slab (4) sequentially disposed on the base (1). The base (1) is recessed with a U-shaped mounting groove (11) extending along the track direction. The distance control bracket (2) includes an adjustable part (21) disposed along the width direction of the U-shaped mounting groove (11) and two limiting parts (22) connected to both ends of the adjustable part (21). The two adjustable sleeper beams (3) are distributed opposite each other across the centerline of the U-shaped mounting groove (11) and respectively abut against the limiting part (22) on one side. The bottom of the adjustable sleeper beam (3) is recessed with a clearance groove (31) relative to the adjustable part (21). The adjustable sleeper beam (3) faces the precast track slab (4) and extends obliquely downward from the edge of the U-shaped mounting groove (11) towards the center. The precast track slab (4) is placed on the infinitely adjustable inclined surface (33) of the two adjustable sleeper beams (3) and the lower surface of the precast track slab (4) is in contact with the two infinitely adjustable inclined surfaces (33). The length of the selected distance control bracket (2) is adjusted according to the installation elevation requirements of the precast track slab (4) at the construction site. The transverse force plate (5) is filled between the side wall of the U-shaped installation groove (11) and the limiting part (22). The bottom of the U-shaped installation groove (11) is provided with a centerline boss (13) along the centerline of the track. The middle part of the distance control bracket (2) is provided with a matching positioning groove (23) relative to the centerline boss (13) so that the midpoint of the distance control part (21) is positioned in the center of the U-shaped installation groove (11).

2. The precast slab track structure as described in claim 1, characterized in that, The adjustable part (21) includes a locking plate (211) in the middle and two adjusting arms (213) on both sides. The locking plate (211) has two waist holes (215) opposite to the two adjusting arms (213). Each adjusting arm (213) has an adjustable waist hole (217) corresponding to the waist hole (215). The relative fixed position of the adjustable waist hole (217) of each adjusting arm (213) and the corresponding waist hole (215) is used to adjust the length of the adjustable part (21) along the width direction of the U-shaped mounting groove (11) and thus adjust the relative distribution distance of the two adjustable pillow beams (3).

3. The precast slab track structure as described in claim 2, characterized in that, Each of the adjusting arms (213) has a scale line along the edge of the adjusting waist hole (217), the scale line being used to indicate the installation height of the prefabricated track plate (4) relative to the base (1).

4. The precast slab track structure as described in any one of claims 1-3, characterized in that, The adjustable sleeper beam (3) has a positioning boss (35) protruding on the infinitely adjustable inclined surface (33) for guiding the prefabricated track slab (4) to slide up and down. The positioning boss (35) is perpendicular to a set of opposite sides of the infinitely adjustable inclined surface (33). The lower surface of the prefabricated track slab (4) is recessed with a matching sliding groove (41) relative to the positioning boss (35).

5. The precast slab track structure as described in claim 4, characterized in that, An elastic buffer pad layer is laid on the inner wall of the sliding channel (41).

6. The precast slab track structure as described in any one of claims 1-3, characterized in that, The two adjustable pillow beams (3) that are relatively distributed are fixedly connected by a pre-embedded sleeve and a connecting rod (37).

7. The precast slab track structure as described in any one of claims 1-3, characterized in that, An elastic material layer is also sandwiched between the lower surface of the precast track slab (4) and the infinitely adjustable inclined surface (33) of the adjustable sleeper beam (3).

8. A method for installing a precast slab track structure, characterized in that, For installing the precast slab track structure as described in any one of claims 1-7, comprising: S1: The base (1) is obtained by cast-in-place construction. S2: Transport the prefabricated control distance bracket (2), adjustable sleeper beam (3), and prefabricated track slab (4) to the construction site; S3: Adjust the length of the selected distance control bracket (2) according to the installation elevation requirements of the precast track slab (4) at the construction site; S4: Install the distance control bracket (2) onto the base (1); S5: Hoist the two adjustable pillow beams (3) onto the distance control bracket (2); S6: Apply a lateral force to each of the two adjustable pillow beams (3) so that each of the two adjustable pillow beams (3) abuts against the limiting part (22) on one side. S7: A transverse force-bearing plate (5) is filled between the side wall of the U-shaped mounting groove (11) and the limiting part (22); S8: Hoist the precast track slab (4) onto the two adjustable sleeper beams (3).

9. The installation method for the precast slab track structure as described in claim 8, characterized in that, S7 includes: Based on the gap width between the side wall of the U-shaped mounting groove (11) and the limiting part (22), a transverse force-bearing plate (5) of appropriate thickness is selected from the prefabricated transverse force-bearing plates (5) of different thicknesses for filling; or, A transverse load-bearing plate (5) is formed by cast-in-place construction between the side wall of the U-shaped mounting groove (11) and the limiting part (22).

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