Prefabricated turnout plate for inserting and paving ballastless turnout of operation line

Abstract

The utility model provides a prefabricated turnout slab for inserting and paving a ballastless turnout of an operation line, which comprises a turnout slab main body and supporting parts, the supporting parts are positioned below the turnout slab main body, the upper ends of the supporting parts are detachably connected with the turnout slab main body, and the number of the supporting parts is greater than or equal to 3; the supporting part comprises supporting legs and a supporting base, and the supporting legs are perpendicular to the upper surface of the supporting base; a thread fixing hole is formed in the lower surface of the turnout plate main body, and the supporting leg is provided with an external thread matched with the thread fixing hole; the height of the fork plate main body is adjusted by adjusting the connecting depth of the supporting legs and the threaded fixing holes; a pouring through hole is formed in the turnout plate body and communicated with the upper surface and the lower surface of the turnout plate body. According to the prefabricated turnout plate, the construction process of turnout insertion is simplified, the smoothness and the stability of a line are guaranteed, and meanwhile it is possible that the turnout plate is rapidly replaced within the skylight time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of ballastless track, concretely relates to a prefabricated turnout plate for inserting and laying turnout in operation line ballastless track. BACKGROUND

[0002] Up to now, the high-speed rail operation mileage in China has exceeded 45,000 kilometers. With the expansion of high-speed rail network from "four vertical and four horizontal" to "eight vertical and eight horizontal", in order to save engineering investment, improve the utilization efficiency of existing lines, and realize network transportation, more and more newly-built high-speed and intercity railways need to be connected to the existing high-speed rail passenger station through the operation-to-departure line. This demand is becoming increasingly urgent.

[0003] However, when inserting and laying turnout in ballastless track section, there are still many technical challenges. The main problem at present is that the demolition of ballastless track and the construction period of turnout laying are too long, which not only significantly affects the train organization of existing lines, but also increases the safety risk and economic cost in the process of construction and operation.

[0004] The existing technical scheme for inserting turnout in ballastless track section mainly includes closed construction and non-closed construction. Among them, the closed construction usually uses wooden sleepers and steel cushion beams to connect the construction temporary line, and the main line insertion turnout construction process is similar to the newly-built line. Although it can ensure the engineering quality, the construction is complex, the efficiency is low, the influence on the train organization of existing lines is great, and the economic cost is high. In comparison, the non-closed construction can effectively reduce the influence on train operation because the train can still pass through the construction area during the construction process. However, in order to ensure the safety of construction and operation, the non-closed construction usually needs to complete the replacement construction of ballastless track within the limited window time, therefore, at present, a kind of turnout plate capable of being quickly replaced within the window time is urgently needed to realize the insertion and laying of turnout in the existing ballastless track section, so as to ensure the high smoothness and stability of the line and reduce the interference with train operation. CONTENT OF THE UTILITY MODEL

[0005] In order to solve the problems in the prior art, the utility model provides a prefabricated turnout plate for inserting and laying turnout in operation line ballastless track, which simplifies the construction process of turnout insertion by using support feet with adjustable height and pouring through holes and turnout installation holes on the turnout plate main body, and makes it possible to realize the quick replacement of turnout plate within the window time while ensuring the smoothness and stability of the line.

[0006] The utility model provides a prefabricated turnout plate for inserting and laying turnout in operation line ballastless track, including turnout plate main body and support part, wherein, the support part is located below the turnout plate main body, and the upper end of the support part is detachably connected with the turnout plate main body, and the number of the support parts is greater than or equal to;

[0007] The support part comprises a support foot and a support base, the support foot is perpendicular to the upper surface of the support base;

[0008] The lower surface of the turnout plate body is provided with a threaded fixing hole, and the support foot is provided with an external thread matched with the threaded fixing hole; by adjusting the connection depth of the support foot and the threaded fixing hole, the height adjustment of the turnout plate body is realized.

[0009] The turnout plate body is provided with a pouring through hole, which communicates the upper and lower surfaces of the turnout plate body.

[0010] Among them, the turnout plate body is also provided with a turnout installation hole and a force transmission rod insertion hole.

[0011] As a further scheme, the turnout installation holes are in pairs and longitudinally and transversely distributed on the upper surface of the turnout plate body.

[0012] As a further scheme, the force transmission rod insertion hole is arranged on the side surface of the turnout plate body.

[0013] Among them, the support foot is fixedly connected at the center of mass of the support base.

[0014] As a further scheme, the support base is provided with N support base fixing holes, N is a natural number greater than or equal to, and the N support base fixing holes are uniformly distributed on the circumference with the center of mass of the support base as the center.

[0015] As some preferred schemes, the number of support base fixing holes on the support base is greater than or equal to 3.

[0016] As a further scheme, the support foot is sleeved with a fastening bolt.

[0017] As a further scheme, the length of the support foot is selected from 10-160mm.

[0018] As some preferred schemes, the number of support parts is 4-8.

[0019] As some preferred schemes, the number of pouring through holes on the turnout plate body is 2-8.

[0020] As some preferred schemes, the number of force transmission rod insertion holes on the turnout plate body is 4-10.

[0021] As a further scheme, a force transmission rod is arranged between two prefabricated turnout plates for inserting and paving a ballastless turnout of one kind of operating line.

[0022] As a further scheme, the force transmission rod comprises a force transmission rod sliding area and a force transmission rod fixed area, a first spiral rib is fixedly poured inside the turnout plate body, and the force transmission rod fixed area is fixedly poured in the turnout plate body through the first spiral rib.

[0023] As a further scheme, a second spiral reinforcement is fixedly poured into the turnout plate body, the second spiral reinforcement is coaxial with the force transmission rod insertion hole, and the force transmission rod sliding area is gap-fitted with the force transmission rod insertion hole of the adjacent prefabricated turnout plate.

[0024] As a further scheme, a protective sleeve is arranged on the force transmission rod sliding area.

[0025] As a further scheme, an inner surface of the force transmission rod insertion hole is provided with a protective layer.

[0026] As a further scheme, a gap between the gap-fitted force transmission rod insertion hole and the force transmission rod sliding area is provided with a lubricating layer, and a bottom of the force transmission rod insertion hole is provided with a buffer gasket.

[0027] As a further scheme, a gap between the gap-fitted force transmission rod insertion hole and the force transmission rod sliding area is provided with a lubricating layer, and a bottom of the force transmission rod insertion hole is provided with a buffer gasket.

[0028] As a further scheme, the buffer layer comprises an inter-plate buffer layer and a waterproof layer arranged on a surface of the inter-plate buffer layer.

[0029] Compared with the prior art, the utility model has at least the following beneficial effects:

[0030] (1) In the utility model, the prefabricated turnout plate body is combined with the height-adjustable support part, so that the height of the turnout plate can be flexibly adjusted according to the specific needs of the site, thereby improving the adaptability and flexibility of construction, and ensuring that installation can still be efficiently carried out under complex terrain or different construction environments. At the same time, the setting of the turnout installation hole realizes the rapid installation of the turnout, simplifies the installation process, reduces manual operation and time cost. It makes it possible to replace the turnout plate during the skylight time.

[0031] (2) The pouring through hole design not only can realize the rapid pouring of the prefabricated turnout plate, but also can effectively ensure that the gap between the turnout plate and the ground is fully filled, thereby enhancing the connection strength and overall stability of the turnout plate. Further through the carefully arranged force transmission rod, the utility model simplifies the complex structure of the traditional force transmission rod, and at the same time, the force transmission rod stably and quickly connects the adjacent prefabricated turnout plates together, effectively reduces the shaking and displacement of the turnout plate, and improves the stability and safety of the turnout system. This design optimizes the construction process, shortens the construction time, reduces the construction difficulty, and ensures the long-term stable operation of the installed turnout plate. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings, which form a part of this patent, are included to provide a further understanding of the application and are incorporated herein for explanation by way of non-limiting example. The present application will be described with reference to the accompanying drawings, wherein:

[0033] Figure 1 It is a kind of operating line ballastless turnout insert paving prefabricated turnout plate structure schematic view;

[0034] Figure 2 It is a kind of operating line ballastless turnout insert paving prefabricated turnout plate structure schematic view;

[0035] Figure 3 It is the plan view of support part;

[0036] Figure 4 It is the schematic view of the connection of two blocks of the operating line ballastless turnout insert paving prefabricated turnout plate and force transmission rod;

[0037] Figure 5 It is the longitudinal section schematic view of the connection part of two blocks of the operating line ballastless turnout insert paving prefabricated turnout plate and force transmission rod.

[0038] Wherein, 1-turnout plate main body;11-pouring through hole;12-turnout mounting hole;13-screw fixing hole;14-force transmission rod insertion hole;15-buffer gasket;2-supporting foot;21-tightening bolt;3-supporting base;31-supporting base fixing hole;4-force transmission rod;41-force transmission rod sliding zone;42-force transmission rod fixed zone;43-first spiral rib;44-second spiral rib;51-inter-plate buffer layer;52-waterproof layer. DETAILED DESCRIPTION

[0039] For the convenience of understanding, the present application will be described more fully below, and embodiments of the present application are given, but the scope of the present application is not limited by this.

[0040] The utility model provides a kind of operating line ballastless turnout insert paving prefabricated turnout plate, as shown in Figures 1-3 It is shown in the drawings, including turnout plate main body 1 and support part, wherein, the support part is located below turnout plate main body 1, and the upper end between the support part and turnout plate main body 1 is detachably connected, and the number of the support part is greater than or equal to 3;

[0041] The support part includes supporting foot 2 and supporting base 3, and the supporting foot 2 is perpendicular to the upper surface of supporting base 3;

[0042] A threaded fixing hole 13 is formed in the lower surface of the turnout plate body 1, and the support leg 2 is provided with an external thread matched with the threaded fixing hole 13; the height of the turnout plate body 1 is adjusted by adjusting the connection depth of the support leg 2 and the threaded fixing hole 13.

[0043] The turnout plate body 1 is provided with a pouring through hole 11, and the pouring through hole 11 communicates the upper and lower surfaces of the turnout plate body 1.

[0044] In the process of traditional closed construction of the inserted laying of the ballastless plate type turnout, the construction period is usually more than 3 months, in order to solve the problem that the closed construction period is long and the non-closed construction is difficult to complete the replacement construction of the ballastless track within the sky window time, the utility model provides a kind of prefabricated turnout plate for the inserted laying of the ballastless turnout of the operating line, including the prefabricated turnout plate body 1 and the support part, first, the utility model provides a kind of prefabricated turnout plate for the inserted laying of the ballastless turnout of the operating line, including the turnout plate body 1 and the support part for supporting the turnout plate body 1, in the process of construction, the prefabricated turnout plate provided by the utility model can be directly hoisted to the specified position by the hoisting equipment, then the height of the support leg 2 in the support part is adjusted to realize the preliminary adjustment of the height of the turnout plate, so as to ensure that the position and elevation of the turnout plate body 1 are consistent with the design linearity, through the adjustable support leg 2, the utility model effectively improves the laying efficiency of the ballastless plate type turnout, so that the replacement of the turnout plate within the sky window time is possible, secondly, the pouring through hole 11 and the turnout installation hole 12 are arranged on the turnout plate body 1, on the one hand, the existence of the pouring through hole 11 communicates the upper and lower surfaces of the turnout plate body 1, so that after the height of the turnout plate body 1 is accurately adjusted, the concrete can be directly injected through the pouring through hole 11 to fill the gap between the turnout plate and the ground, so as to ensure that the turnout plate and the base plate are closely combined, this way not only improves the stability of the prefabricated turnout plate in the use process, but also effectively shortens the construction time, further optimizes the turnout construction efficiency, finally, the turnout plate body 1 is also provided with a pair of turnout installation holes 12, the existence of the turnout installation hole 12 can ensure that the prefabricated turnout plate after replacement can be directly installed with the turnout, so as to effectively shorten the turnout installation process, improve the construction efficiency and reduce the influence on train operation.

[0045] Among them, the turnout plate body 1 is also provided with a turnout installation hole 12 and a force transmission rod insertion hole 14.

[0046] Among them, the turnout installation hole 12 is in pairs and longitudinally and transversely distributed on the upper surface of the turnout plate body 1, and the force transmission rod insertion hole 14 is arranged on the side surface of the turnout plate body 1.

[0047] Among them, the support leg 2 is fixedly connected at the center of mass of the support base 3. The support base 3 fixedly connected at the center of mass is helpful to optimize the stress relationship between the support leg 3 and the support base 3 and provide more stable support for the turnout plate body 1.

[0048] The support base 3 is provided with N support base fixing holes 31, N is a natural number greater than or equal to 2, and the N support base fixing holes 31 are uniformly distributed on a circumference with the centroid of the support base 3 as the center. The existence of the support base fixing hole 31 can realize the rapid fixing of the prefabricated turnout plate for the operation line ballastless turnout plug-in and paving on the base plate, and the uniform distribution of the support base fixing holes 31 on the same circumference helps to optimize the stress of the support base 3 and provide more stable support for the prefabricated turnout plate.

[0049] As some specific examples, the N support base fixing holes 31 on the support base 3 are greater than or equal to 3. The support base fixing holes 31 greater than three help to more evenly disperse the support pressure and improve the stability during the use and installation of the turnout plate.

[0050] The support foot 2 is sleeved with a fastening bolt 21.

[0051] The length of the support foot 2 is selected from 10-160mm.

[0052] As some specific examples, the number of support parts is 4-8. The 4-8 support parts help to better disperse the pressure of the turnout plate body 1, provide more stable support for the turnout plate body 1, and reduce errors caused by the shaking of the turnout plate body 1.

[0053] As some specific examples, the number of pouring through holes 11 on the turnout plate body 1 is 2-8. When the number of pouring through holes 11 is selected from 2-8, it helps to further optimize the concrete pouring efficiency and improve the construction speed.

[0054] As shown in Figure 4 The adjacent two prefabricated turnout plates for the operation line ballastless turnout plug-in and paving are provided with a force transmission rod 4. In the use process of the track, the turnout plate often bears a large longitudinal, transverse and vertical force. In order to maintain the force balance between the turnout plates and avoid displacement or deformation of the turnout plate due to local excessive stress, the utility model sets a force transmission rod 4 on the side surface of the adjacent two prefabricated turnout plates. The existence of the force transmission rod 4 helps to avoid the displacement and shaking of the laid prefabricated turnout plate under complex stress conditions, and improves the stability and reliability of the prefabricated turnout plate.

[0055] As shown in Figure 5 The force transmission rod 4 includes a force transmission rod sliding area 41 and a force transmission rod fixed area 42, a first spiral rib 43 is fixedly poured in the turnout plate body 1, and the force transmission rod fixed area 42 is fixedly poured in the turnout plate body 1 through the first spiral rib 43.

[0056] The second spiral rib 44 is fixed in the turnout plate body 1, the second spiral rib 44 is coaxial with the force bar insertion hole 14, and the force bar sliding area 41 is gap matched with the force bar insertion hole 14 of the adjacent prefabricated turnout plate.

[0057] The protection sleeve is arranged on the force bar sliding area 41.

[0058] The first spiral rib 43 and the second spiral rib 44 fixed in the turnout plate body 1 help to improve the strength of the concrete around the force bar, disperse the pressure of the force bar, thereby prolonging the service life of the force bar; in addition, the protection sleeve arranged on the force bar sliding area 41 helps to reduce the corrosion or damage of external substances to the force bar, and at the same time improves the smoothness of the surface of the force bar sliding area 41, thereby improving the overall safety.

[0059] As some specific examples, the number of force bar insertion holes 14 on the turnout plate body 1 is 4-10.

[0060] The gap between the gap matched force bar insertion hole 14 and the force bar sliding area 41 is provided with a lubricating layer, and the bottom of the force bar insertion hole 14 is provided with a buffer gasket 15, the lubricating layer and the buffer gasket 15 help to reduce the friction between the force bar sliding area 41 and the force bar insertion hole 14, and the buffer gasket 15 arranged at the bottom of the force bar insertion hole 14 helps to absorb the impact generated during railway operation, thereby prolonging the service life of the prefabricated turnout plate.

[0061] The gap between the two adjacent prefabricated turnout plates for the insertion and paving of the ballastless turnout of one operating line is provided with a buffer layer.

[0062] The buffer layer 5 includes an inter-plate buffer layer 51 and a waterproof layer 52 wrapped around the inter-plate buffer layer 51. The buffer layer 5 includes an inter-plate buffer layer 51 and a waterproof layer 52 arranged on the surface of the inter-plate buffer layer 51, wherein the inter-plate buffer layer 51 is used to absorb and reduce the vibration and impact between the turnout plates, thereby protecting the prefabricated turnout plate and the force bar 4 and prolonging the service life thereof; secondly, the waterproof layer 52 arranged on the surface of the inter-plate buffer layer 51 can effectively protect the inter-plate buffer layer 51, prevent water, dust, sundries or corrosive substances from entering the joint of the turnout plate, and cause corrosion or structural damage to the prefabricated turnout plate, so as to ensure that the connection between the prefabricated turnout plates is stable and durable.

[0063] The material of the protection sleeve is not limited in principle, and as some exemplary optional parameters, the material of the protection sleeve is selected from any one or several of polyethylene, polypropylene, polyvinyl chloride, polytetrafluoroethylene, nylon, polyurethane, polyformaldehyde, polycarbonate, polyphenylene sulfide, polyimide, and polyether ether ketone.

[0064] The protective layer material is not limited in principle, and as some exemplary optional parameters, the protective layer material is selected from any one or more of natural rubber, styrene-butadiene rubber, cis-butadiene rubber, isoprene rubber, chloroprene rubber, butyl rubber, nitrile rubber, ethylene-propylene rubber, and polyurethane rubber.

[0065] The cushion gasket 15 material is not limited in principle, and as some exemplary optional parameters, the cushion gasket 15 material is selected from any one or more of sponge gasket, pearl wool gasket, and polyurethane sponge.

[0066] The inter-plate cushion layer 51 material is not limited in principle, and as some exemplary optional parameters, the inter-plate cushion layer 51 material can be selected from any one or more of expanded polystyrene, polyethylene foam, polyurethane, and polyisocyanurate.

[0067] The waterproof layer 52 material is not limited in principle, and as some exemplary optional parameters, the waterproof layer 52 material can be selected from any one or more of polyurethane sealant, chloroprene rubber, silicone, and polypropylene caulk.

[0068] Example 1

[0069] S01: Measure the existing line type in the range of the inserted turnout and the target line type after the insertion of the turnout

[0070] Before construction, the geometric dimensions and spatial positions of the existing track in the range of the inserted turnout are measured in detail to obtain accurate existing line type data. Subsequently, the target line type after the insertion of the turnout is calculated according to the design drawings and measurement data, and the measurement data will serve as the basis for subsequent construction.

[0071] S02: Widening the roadbed and base plate

[0072] According to the measurement data of step S01, the area of the roadbed and base plate that needs to be widened is cleaned, loose soil is removed, the widened area is compacted, and anchor bolts or anchor bolts are used to enhance the connectivity of the widened area with the original structure. After pouring, the widened area is maintained to ensure that it reaches the design strength.

[0073] S03: Customizing prefabricated turnout plates in the factory

[0074] According to the accurate measurement data, prefabricated turnout plates are customized in the factory.

[0075] S04: Pre-construction preparation

[0076] Before construction, the sky window time is determined, and hoisting equipment, turnout plates, concrete, self-compacting materials, fine adjustment devices, and other construction tools are prepared in advance.

[0077] S05: Removing the existing track plates and installing the turnout plates during the sky window time

[0078] In one skylight time, first lift up the left and right rail, and support the rail with steel beam slide, then push it out a certain distance to ensure its safe position. Then, remove the existing track board within the scope of the turnout board, clean the surface of the support base, and ensure that there is no residual debris. According to the new line type, drill holes in the base plate and install sleeves, and prepare for the installation of the turnout board.

[0079] S06: Hoisting and preliminary positioning of the turnout board

[0080] Use the lifting equipment to hoist the prefabricated turnout board to the base plate and complete the insertion of the plate member force link. After the preliminary placement of the prefabricated turnout board, adjust the height of the turnout board body 1 by adjusting the fastening bolt 21 on the support foot 2, and ensure the preliminary butt joint of the turnout board body 1 and the base plate.

[0081] S07: Fine adjustment of the turnout board

[0082] Adjust the plan position and elevation of the turnout board through the three-dimensional adjuster to completely match the target line type, and after completion, install bolts on the support base fixing hole 31, fix the prefabricated turnout board, and then re-tighten the fastener on the reserved turnout installation hole 12 and fine adjust to restore the track geometric position, ensuring the resetting of the rail.

[0083] S08: Continuous turnout board replacement

[0084] In each skylight time, repeat steps S05 to S07 to complete the continuous replacement of all turnout boards. After each replacement is completed, intermediate acceptance is carried out to check the installation accuracy of the turnout board, and to ensure that the position and height of all turnout boards meet the design requirements.

[0085] S09: Turnout hoisting positioning and fine adjustment post-pouring

[0086] After all the prefabricated turnout boards are installed in place, in the next skylight time, pour the quick-setting self-compacting concrete into the pouring hole 11 to fill all the gaps and ensure the close combination of the turnout board and the base plate. After the pouring is completed, the surface of the concrete is smoothed and covered for curing to ensure the close combination of the turnout board and the base plate. After the turnout is fine-tuned and poured, the turnout welding operation is carried out.

[0087] S10: Acceptance and restoration of line operation

[0088] After the seamless treatment of the turnout is completed, the turnout is comprehensively accepted, including measuring the turnout geometric dimensions, track gauge, elevation and other key indicators. After the acceptance is passed, the original speed operation of the line is restored, and the monitoring work in the early stage of operation is arranged to ensure the stability and safety of the turnout when the train passes.

[0089] Any technical features in the above-described embodiments can be combined, and for the sake of brevity, not all possible combinations are described, however, it is to be understood that the scope of protection includes all possible combinations of the technical features described herein. Although the embodiments of the present application have been shown and described above, it should be understood by those having ordinary skill in the art that such embodiments are presented by way of example only and not by way of limitation, and that modifications, substitutions, changes, and equivalents of the embodiments as set forth in the above description, and in the appended claims, can be made by those of ordinary skill in the art without departing from the scope and spirit of the present application. Furthermore, the skilled person can combine and / or combine features of different embodiments or examples described in the present specification, without departing from the scope of the present application.

Claims

1. A prefabricated turnout slab for operating line ballastless turnout insertion and paving, characterized in that, The switch plate body (1) and the support part, wherein the support part is located below the switch plate body (1), the upper end of the support part is detachably connected with the switch plate body (1), and the number of the support part is greater than or equal to 3; The support part comprises a support foot (2) and a support base (3), and the support foot (2) is perpendicular to the upper surface of the support base (3); A threaded fixing hole (13) is formed in the lower surface of the switch plate body (1), and the support foot (2) is provided with an external thread matched with the threaded fixing hole (13); the height of the switch plate body (1) is adjusted by adjusting the connection depth of the support foot (2) and the threaded fixing hole (13); The switch plate body (1) is provided with a pouring through hole (11) which communicates the upper and lower surfaces of the switch plate body (1).

2. The prefabricated turnout slab for construction of a turnout on a ballastless track according to claim 1, characterized in that, The switch plate body (1) is further provided with a switch mounting hole (12) and a force transmission rod insertion hole (14); The switch mounting hole (12) is in pairs and longitudinally and transversely distributed on the upper surface of the switch plate body (1); The force transmission rod insertion hole (14) is arranged on the side surface of the switch plate body (1).

3. The prefabricated turnout slab for construction of a turnout on a ballastless track according to claim 1, characterized in that, The support foot (2) is fixedly connected at the center of mass of the support base (3).

4. The prefabricated turnout slab for construction of a turnout on a ballastless track according to claim 1, characterized in that, The support base (3) is provided with N support base fixing holes (31), N is a natural number greater than or equal to 2, and the N support base fixing holes (31) are uniformly distributed on the circumference with the center of mass of the support base (3) as the center.

5. The prefabricated turnout slab for construction of a turnout on a ballastless track according to claim 1, characterized in that, The support foot (2) is sleeved with a fastening bolt (21).

6. The precast turnout slab for plug-pushing of a ballastless turnout of a line in operation according to claim 1, characterized in that, The number of the support part is 4-8.

7. The prefabricated turnout slab for construction of a turnout on a ballastless track according to claim 1, characterized in that, The number of the pouring through hole (11) on the switch plate body (1) is 2-8; The number of the force transmission rod insertion hole (14) on the switch plate body (1) is 4-10.

8. The precast turnout slab for plug-pushing of a ballastless turnout of a line in operation according to claim 4, characterized in that, N is greater than or equal to 3.

9. The precast turnout slab for plug-type construction of a ballastless turnout of a railway line according to claim 1, characterized in that, Adjacent two precast switch plates for one operating line ballastless turnout insertion and paving are provided with a force transmission rod (4); The force transmission rod (4) comprises a force transmission rod sliding area (41) and a force transmission rod fixed area (42), a first spiral rib (43) is fixedly poured in the switch plate body (1), and the force transmission rod fixed area (42) is fixedly poured in the switch plate body (1) through the first spiral rib (43); A second spiral rib (44) is fixedly poured in the switch plate body (1), the second spiral rib (44) is coaxial with the force transmission rod insertion hole (14), and the force transmission rod sliding area (41) is gap-fitted with the force transmission rod insertion hole (14) of the adjacent precast switch plate.

10. The prefabricated turnout slab for construction of a turnout on a ballastless track according to claim 9, characterized in that, The force transmission rod sliding area (41) and the force transmission rod fixed area (42) are sleeved with a spiral rib (43), and the force transmission rod sliding area (41) is provided with a protective sleeve; The inner surface of the force transmission rod insertion hole (14) is provided with a protective layer; The gap between the gap-fitted force transmission rod insertion hole (14) and the force transmission rod sliding area (41) is provided with a lubricating layer, and the bottom of the force transmission rod insertion hole (14) is provided with a buffer gasket (15); The gap between the adjacent two precast switch plates for one operating line ballastless turnout insertion and paving is provided with a buffer layer; The buffer layer comprises an inter-plate buffer layer (51) and a waterproof layer (52) arranged on the surface of the inter-plate buffer layer (51).

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