A high turnover rate ballastless track slab construction method

Abstract

The present application relates to a high-turnover ballastless track bed construction method, which includes the following steps: S1. measurement and laying out; S2. steel bar binding; S3. track assembly, using a track hoist to transfer the track rack to the paving area, and installing the sleepers after sleeper separation on the track rack; S4. rough paving of the track; S5. template installation, using a side support device to fix the casting template, and leaving a construction channel of at least 1.5m between the double-track track bed; S6. track fine-tuning; S7. concrete pouring; after the concrete solidifies, the track rack is removed, and the track rack is hoisted onto a transport trolley with a track hoist, and the transport trolley is pushed to the next construction section; S8. concrete curing. The present application replaces three gantry cranes with transport trolleys and track hoists in alternating operation, avoiding cross-interference and safety risks caused by three-dimensional operations, and multiple working surfaces can be constructed simultaneously without interfering with each other, which greatly improves work efficiency and the turnover of various construction equipment on the construction site.

Description

Technical Field

[0001] The present application relates to the technical field of railway track paving, and in particular to a method for constructing a high-turnover ballastless track bed slab. Background Art

[0002] At present, the main cast-in-place ballastless tracks for high-speed railways in my country are CRTSⅠ and CRTSⅡ double-block ballastless tracks. Among them, CRTSⅠ double-block ballastless track is a ballastless track structure type in which prefabricated double-block sleepers are assembled into rails, and the sleepers are poured into a uniform and continuous reinforced concrete ballast bed by pouring concrete on site; CRTSⅡ double-block ballastless track is a ballastless track structure type in which prefabricated double-block sleepers are assembled into rails by pouring concrete on site, and then embedded into a uniform and continuous reinforced concrete ballast bed by mechanical vibration. Among them, CRTSⅠ double-block ballastless track can achieve relatively high construction efficiency with the help of paving tools.

[0003] In the actual construction, the track frame plays a key role in connecting, positioning and fixing the prefabricated double-block sleepers. Moreover, during the current double-track construction of the ballast slab, more diagonal braces are set on the outside of the casting formwork of the ballast slab to improve the stability of the casting formwork. This results in the fact that the track frame can only be transferred with the help of a large gantry crane that crosses the double tracks. In order to ensure the orderly progress of each construction process of the ballast slab, three gantry cranes are generally set up for coordination. On the one hand, this makes the already cramped space even more crowded, and on the other hand, there is also greater pressure on production safety and higher construction costs. Summary of the invention

[0004] In order to improve the existing ballast slab construction process which requires the use of multiple gantry cranes to transfer the track frames, resulting in large space occupation, high safety hazards and high construction costs, the present application provides a high-turnover ballastless track ballast slab construction method.

[0005] The present application provides a high turnover rate ballastless track slab construction method using the following technical solutions:

[0006] A high turnover rate ballastless track slab construction method comprises the following steps:

[0007] S1. Measure and lay out the line centerline and track centerline control points according to the designed ballast plate position;

[0008] S2. Rebar binding: Bind the bottom layer of the track slab according to the relevant contents of the ballastless track construction drawing and use insulating clips for binding;

[0009] S3 rail row assembly, with the help of automatic sub-sleeper platform sub-sleeper, rail row hoist to transfer the rail row frame to the paving area, and install the sleepers on the rails of the rail row frame;

[0010] S4. Rough rail laying, using the rail hanger to roughly adjust the rail frame elevation, and connect the rails on the two adjacent rail frames with fishplates;

[0011] S5. Formwork installation: install the roadbed slab casting formwork, and drive anchor nails into the ground outside the casting formwork, fix the casting formwork with the side support device with the help of the anchor nails, and reserve a construction channel of at least 1.5m between the double-track roadbed slabs;

[0012] S6. Track arrangement fine-tuning, using ballastless track automatic fine-tuning equipment to fine-tune the track arrangement;

[0013] S7. Concrete pouring, pouring concrete into the casting template; after the concrete solidifies, the rail rack is removed, the rail rack is hoisted to the transport trolley with the rail hoist, and the transport trolley is pushed to the next construction section;

[0014] S8. Concrete curing, watering and laying water-retaining film for curing;

[0015] In step S7, the transport trolley runs on the rails of the rail rack, and when the transport trolley transports the dismantled rail rack to the next construction section, the rail rack hoist in the next construction section hoists and transfers the dismantled rail rack to the sleepers in the paving area;

[0016] Among them, the transport trolley is provided with a motor for driving it to automatically run on the rails of the track frame, and the motor control is connected to a remote control; pressure sensors are provided on the four rollers at the four corners of the transport trolley, and the pressure sensors are configured to monitor the weight distribution of the track frame on the transport trolley.

[0017] Furthermore, the motor control is connected to a balance controller, and the plurality of pressure sensors are control-connected to the balance controller.

[0018] Furthermore, the balancing controller is configured to connect the motor to the remote controller only when the difference between the pressure values ​​detected by any two or more of the pressure sensors and the average value of the pressure values ​​detected by the four pressure sensors meets a predetermined threshold.

[0019] Furthermore, at least two groups of telescopic brackets are provided on both sides of the transport trolley along its conveying direction, and the upper end surfaces of the lifting parts of the telescopic brackets are flush with the upper end surface of the transport trolley.

[0020] Furthermore, the side support device comprises:

[0021] A triangular support frame, the bottom of which has a fixing hole for the ground anchor to pass through;

[0022] A bottom support screw, screwed to the triangular support frame and pressed against the lower end surface of the casting template;

[0023] The middle support screw is screwed on the triangular support frame and pressed against the outer side of the casting template.

[0024] Furthermore, the rail hanging device comprises:

[0025] A gantry, the inner width of which is greater than the width of a single ballast plate;

[0026] Rollers are arranged at the four corners of the bottom of the gantry;

[0027] Two electric hoists are provided and are spaced apart on the top beam of the gantry;

[0028] A lifting piece has one end connected to the lifting chain of the electric hoist and the other end used for fixing the rail rack.

[0029] Furthermore, the lifting device includes a hooked lifting chain connected to the lifting chain of the electric hoist.

[0030] Furthermore, the lifting device comprises:

[0031] A balance beam, the middle part of the upper end surface of which is connected to the lifting chain of the electric hoist;

[0032] The rail clamp is arranged on the lower end surface of the balance beam, and the rail clamp is arranged at both ends of the balance beam.

[0033] Furthermore, the roller on one side of the gantry is configured as a concave wheel, a guide rail arranged along the laying direction of the roadbed plate is fixedly connected to the ground on one side of the casting template, and the concave wheel is adapted to roll on the guide rail.

[0034] Furthermore, during pouring in step S7, pouring is performed back and forth between the double-block sleepers in a zigzag pattern, and manual vibration is adopted. Each pouring section is equipped with at least 4 inserted vibrating rods, and the vibrating rods are prevented from touching the rail rack during vibration.

[0035] In summary, the beneficial technical effects of this application are:

[0036] 1. After the construction of a section of ballast slab is completed, the rail rack is removed after the concrete of the ballast slab is solidified, and the rail rack is hoisted onto a transport trolley with a rail rack hoist, and the transport trolley is pushed to the next construction section to achieve the rapid transfer of the rail rack; by using the rail rack transport trolley and the rail rack hoist to alternately operate instead of the three gantry cranes used in the traditional process, the cross interference and safety risks caused by three-dimensional operation are avoided;

[0037] 2. The vertical support of the side support device replaces the inclined support to leave a 1.5-meter construction channel between the two bed plates, which meets the safety of construction material transportation and personnel passage, ensuring that the construction site is clean and orderly. In addition, the entire paving construction work surface is a flat operation, and multiple work surfaces can be constructed simultaneously during the on-line construction without interfering with each other, which greatly improves work efficiency and the turnover rate of various construction equipment on the construction site;

[0038] 3. By replacing three gantry cranes with transport trolleys and track hoists in alternating operation, the tooling equipment cost for a single working surface (per 100 meters of track bed construction) can be reduced by 500,000 yuan, with significant economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the construction method flow of an embodiment of the present application;

[0040] Figure 2 It is a schematic diagram of the structure of the equipment used by the track rack in the embodiment of the present application during the transfer of double-track construction;

[0041] Figure 3 This is a side view of the track rack of the embodiment of the present application during the double-track construction transition;

[0042] Figure 4 It is a structural schematic diagram of an embodiment of the present application when a rail rack is hoisted by a rail rack hoist;

[0043] Figure 5 yes Figure 4 A partial enlarged schematic diagram of part A.

[0044] Description of reference numerals:

[0045] 1. Rail rack; 11. Rails;

[0046] 21. Casting formwork; 22. Side support device; 221. Triangular support frame; 222. Bottom support screw; 223. Middle support screw;

[0047] 3. Rail hoist; 31. Gantry; 32. Roller; 33. Electric hoist; 34. Balance beam; 35. Rail clamp; 36. Concave wheel; 37. Guide rail;

[0048] 4. Transport trolley;

[0049] 5. Telescopic bracket. DETAILED DESCRIPTION

[0050] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0051] The present application embodiment discloses a method for constructing a high turnover rate ballastless track slab. Figure 1 , which comprises the following steps:

[0052] S1. Measure and lay out the line centerline and track centerline control points according to the designed ballast plate position, and use an ink marker to pop out the track centerline. If it is a roadbed ballast plate, it is also necessary to lay out the ballast plate edge line on the concrete surface of the base plate, and use an ink marker to pop out the edge line position.

[0053] S2. Rebar binding: The bottom layer of the ballast slab shall be bound according to the relevant contents of the ballastless track construction drawing, and insulating cards shall be used for binding. Specifically, measurement and layout shall be carried out before binding. A track center control point shall be measured and marked every 10m along the line direction, and the track center line and the longitudinal reinforcement edge line of the ballast slab shall be popped out based on this reference point.

[0054] S3. Assemble the rail racks, separate the sleepers with the help of the automatic sleeper separation platform, transfer the rail rack frame 1 to the paving area with the rail rack hanger 3, and install the sleepers on the rails 11 of the rail rack frame 1.

[0055] S4. Roughly lay the rails. Use the rail hanger 3 to roughly adjust the height of the rail rack 1, and connect the rails 11 on two adjacent rail racks 1 with fish plates.

[0056] S5. Formwork installation: install the roadbed slab casting formwork 21. The casting formwork 21 specifically includes side formworks arranged along the laying direction of the roadbed slab and expansion joint partitions arranged between the two parallel side formworks. Then, ground anchors are driven into the ground outside the casting formwork 21. The casting formwork 21 is fixed with the side support device 22 by means of the ground anchors, and a construction channel of at least 1.5m is reserved between the double-track roadbed slabs.

[0057] S6. Track fine-tuning: use the ballastless track automatic fine-tuning equipment to fine-tune the track.

[0058] S7. Concrete pouring: pour concrete into the pouring template 21. Specifically, pour concrete one-way and continuously for each sleeper, so that the concrete flows naturally from one end of the sleeper to the other end. After the concrete flows naturally from under the sleeper to the next sleeper, move forward to the next sleeper and continue pouring. After the concrete solidifies, remove the rail rack 1, hoist the rail rack 1 onto the transport trolley 4 with the rail rack hoist 3, and push the transport trolley 4 to the next construction section to achieve the rapid transfer of the rail rack 1.

[0059] S8. Concrete curing, watering and laying water-retaining film for curing. Specifically, the curing method of "one cloth, one film and one leak" is adopted. When the concrete is initially set (about 3 to 4 hours after pouring), the geotextile is first covered, then 3 dripping water pipes are arranged, and finally covered with plastic film. After the final setting (i.e. the concrete turns white, about 7 to 10 hours after the concrete pouring is completed), the branch water pipe is connected to the drip irrigation belt for curing, and the curing time is not less than 7 days.

[0060] Reference Figure 2-5 With the help of the above construction method, the three gantry cranes used in the traditional process are replaced by the rail rack 1 transport trolley 4 and the rail rack hoist 3, which avoids the cross interference and safety risks caused by the three-dimensional operation; and the vertical support of the side support device 22 replaces the inclined support to leave a 1.5-meter construction channel between the two track beds, which meets the safety of construction material transportation and personnel passage, ensuring that the construction site is clean and orderly. In addition, the entire paving construction work surface is a flat operation, and multiple work surfaces can be constructed at the same time without interfering with each other, which greatly improves the work efficiency and the turnover rate of various construction equipment on the construction site. At the same time, the elimination of the three gantry cranes can reduce the tooling equipment cost of a single work surface (per 100 meters of track bed construction) by 500,000 yuan, with significant economic benefits.

[0061] Specifically, in step S7, the transport trolley 4 runs on the rails 11 of the track frame 1, and its running speed is significantly higher than the running speed of the track hoist 3. By transferring the track frame 1 with the help of the transport trolley 4, the transfer speed can be significantly improved; and when the transport trolley 4 transports the dismantled track frame 1 to the next construction section, the track hoist 3 in the next construction section lifts and transfers the dismantled track frame 1 to the sleepers in the paving area, thereby improving the turnover efficiency of the transport trolley 4, and further improving the rapid transfer efficiency of the track frame 1.

[0062] In addition, the transport trolley 4 is provided with a motor for driving it to automatically run on the rail 11 of the track frame 1. The motor control is connected to a remote control. The connection method between the motor and the remote control can be a wired connection or a wireless connection, such as Bluetooth, radio frequency signals, etc.; in actual operation, the two are connected by wire, and the forward and backward buttons in the remote control need to be long pressed by the operator to trigger the control action, so as to ensure that the construction personnel operating the transport trolley 4 can always follow the vehicle to ensure construction safety.

[0063] Pressure sensors are respectively arranged on the four rollers of the transport trolley 4 to monitor the weight distribution of the rail rack 1 in real time and ensure that it is evenly placed on the transport trolley 4. When the pressure values ​​detected by any two or more pressure sensors and the average of the pressure values ​​detected by the four pressure sensors exceed the predetermined threshold, the transport trolley 4 stops and the remote controller receives an alarm reminder, which reminds the operator to check the status of the rail rack 1. In addition, the threshold of the pressure sensor can be adaptively adjusted according to different load conditions to ensure that the best safety protection effect can be provided under various working conditions, further improving safety and reliability.

[0064] The transport trolley 4 is provided with at least two groups of telescopic brackets 5 on the side along its conveying direction. The length of the telescopic bracket 5 can be adjusted, and the upper end surface of the telescopic bracket 5 is flush with the upper end surface of the transport trolley 5. When the remote control receives an alarm reminder, the telescopic bracket 5 can be used to adjust the center of gravity of the rail frame 1. After the adjustment, the pressure detected by the four pressure sensors is obtained again. If the difference between the pressure values ​​detected by any two or more pressure sensors and the average value of the pressure values ​​detected by the four pressure sensors meets the predetermined threshold, the motor is connected to the remote control, and the transport trolley 4 can be controlled by the remote control to continue moving.

[0065] In addition, the rail hanging device 3 comprises:

[0066] The gantry 31 has an inner width greater than the width of a single track bed plate;

[0067] Rollers 32 are arranged at the four corners of the bottom of the gantry 31;

[0068] Two electric hoists 33 are provided and are spaced apart on the top beam of the gantry 31;

[0069] The lifting piece has one end connected to the lifting chain of the electric hoist 33 and the other end used to fix the rail rack 1.

[0070] In a feasible embodiment, the lifting device includes a hooked lifting chain connected to the lifting chain of the electric hoist 33, and in order to maintain the stability of the rail rack 1 during the transfer process, two hooked lifting chains are corresponding to the lifting chain of one electric hoist 33. The hook of the hooked lifting chain passes around the rail 11 on the rail rack 1 and then hooks on its own lifting chain, so that the rail rack 1 can be fixed and stably mounted.

[0071] In another possible embodiment, the lifting device includes:

[0072] A balance beam 34, the middle part of the upper end surface of which is connected to the lifting chain of the electric hoist 33;

[0073] The rail clamp 35 is disposed on the lower end surface of the balance beam 34 , and the rail clamps 35 are disposed at both ends of the balance beam 34 .

[0074] In this way, when the rail frame 1 is being hoisted by the rail hoist 3, four symmetrical points on the rail frame 1 can be lifted with the help of the four rail clamps 35, thereby ensuring the stability of the rail frame 1 when being lifted, as well as ensuring the stability of the rail frame 1 during the lifting process, and reducing the probability of the rail frame 1 shaking on the gantry 31.

[0075] In order to ensure the controllability of the running direction of the track hanger 3, the roller 32 on one side of the gantry 31 is set as a concave wheel 36, and the roller 32 on the other side is set as a rubber wheel. A guide rail 37 set along the laying direction of the track bed plate is fixed to the ground on one side of the casting template 21, and the concave wheel 36 is rotatably adapted on the guide rail 37. In the specific setting, the guide rail 37 is set as an angle steel.

[0076] This design ensures that the gantry 31 is stable and reliable during operation through the rolling cooperation between the concave wheel 36 on one side and the guide rail 37, avoiding equipment deviation and side wall collision caused by snaking motion, thereby improving the safety of operation. At the same time, the rubber wheel travels directly on the ground without relying on the predetermined guide rail, avoiding the high-precision dimensional requirements for installing the guide rails on both sides, and the rail-free design of the rubber wheel significantly improves the operational flexibility of the gantry 31.

[0077] At the same time, in order to improve the pouring and molding quality of the concrete of the track bed slab, on the one hand, during pouring in step S7, the concrete is poured back and forth in a zigzag route between the double-block sleepers, and manual vibration is adopted. At least 4 inserted vibrating rods are configured for each pouring section. During vibration, the vibrating rods are prevented from touching the rail rack 1; and the method of fast insertion and slow withdrawal is adopted, and the vibration spacing is controlled at about 50cm. The duration of vibration is based on the concrete not sinking and being uniform and dense. Over-vibration and leakage of vibration must not be allowed. During the pouring process, the concrete at the bottom of the sleeper should be vibrated more. Two types of vibrating rods are used for concrete vibration. A Φ50 vibrating rod is used in the middle of the track bed slab for vertical up and down and multi-point initial vibration. It is strictly forbidden to rush the material. After the concrete is initially vibrated and leveled, a Φ30 vibrating rod is used for secondary vibration around the sleeper. This can promote the density of the concrete before molding to ensure the molding quality of the track bed slab.

[0078] On the other hand, after the initial setting of the concrete in step S7, the fishplates and rail fasteners at the butt ends of two adjacent rail racks 1 are loosened to release the stress of the rails 11 and ensure the installation stability of the sleepers.

[0079] In addition, in order to ensure that the casting formwork 21 of the double track slab can reserve a construction channel of at least 1.5m after assembly, the side support device 22 includes:

[0080] A triangular support 221, the bottom of which has a fixing hole for the ground anchor to pass through;

[0081] The bottom support screw 222 is screwed on the triangular support frame 221 and pressed against the lower end surface of the casting template 21;

[0082] The middle support screw 223 is screwed onto the triangular support frame 221 and pressed against the outer side surface of the casting template 21 .

[0083] The middle support screw 223 on the triangular support frame 221 can support the middle part of the side formwork in the casting formwork 21, and the bottom support screw 222 on the triangular support frame 221 can support the bottom of the side formwork in the casting formwork 21, and can effectively fix the side formwork to prevent the formwork from expanding, effectively ensuring the casting quality of the roadbed plate. On this basis, the triangular support frame 221 is fixed by ground anchors, which greatly reduces the space occupied by the lateral support structure of the casting formwork 21 compared to the conventional diagonal support setting, so that when hoisting and transferring the rail rack 1, only the rail rack hoist 3 and the transport trolley 4 of the present application can be used to achieve efficient paving of the rail rack 1, which significantly improves the turnover efficiency of various construction equipment, greatly improves the construction efficiency, controls the construction cost, and is also easy for construction personnel to operate conveniently.

[0084] The implementation principle of a high turnover rate ballastless track slab construction method in the embodiment of the present application is:

[0085] After the construction of a section of the ballast slab is completed, the track frame 1 is removed after the concrete of the ballast slab is solidified, and the track frame 1 is hoisted onto the transport trolley 4 by the track hoist 3, and the transport trolley 4 is pushed to the next construction section to realize the rapid transfer of the track frame 1. By replacing the three gantry cranes used in the traditional process with the track frame 1 transport trolley 4 and the track hoist 3, the cross interference and safety risks caused by the three-dimensional operation are avoided; and the vertical support of the side support device 22 replaces the inclined support to leave a 1.5-meter construction channel between the two ballast slabs, which meets the safety of construction material transportation and personnel passage, ensuring that the construction site is clean and orderly, and the entire paving construction work surface is a plane operation, and multiple work surfaces can be constructed at the same time without interfering with each other, which greatly improves work efficiency and the turnover rate of various construction equipment on the construction site. At the same time, the elimination of the three gantry cranes can reduce the tooling equipment cost of a single work surface (per 100 meters of ballast construction) by 500,000 yuan, with significant economic benefits.

[0086] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0087] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high turnover rate ballastless track slab construction method, characterized in that: The following steps are involved: S1. Measure and lay out the line centerline and track centerline control points according to the designed ballast plate position; S2. Rebar binding: Bind the bottom layer of the track slab according to the relevant contents of the ballastless track construction drawing and use insulating clips for binding; S3. Rail row assembly, using the automatic sleeper platform to separate the sleepers, using the rail row hanger (3) to transfer the rail row frame (1) to the paving area, and installing the sleepers on the rails (11) of the rail row frame (1); S4. Roughly laying the rails, using the rail hanger (3) to roughly adjust the elevation of the rail rack (1), and connecting the rails (11) on the two adjacent rail racks (1) with fish plates; S5. Installing the template, installing the roadbed slab casting template (21), and driving anchor nails into the ground outside the casting template (21), fixing the casting template (21) with the side support device (22) by means of the anchor nails, and leaving a construction channel of at least 1.5 m between the double-track roadbed slabs; S6. Track arrangement fine-tuning, using ballastless track automatic fine-tuning equipment to fine-tune the track arrangement; S7. Concrete pouring: pouring concrete into the pouring template (21); after the concrete solidifies, the rail rack (1) is removed, and the rail rack hoist (3) is used to hoist the rail rack (1) onto the transport trolley (4), and the transport trolley (4) is pushed to the next construction section; S8. Concrete curing, watering and laying water-retaining film for curing; In step S7, the transport trolley (4) runs on the rails (11) of the rail rack (1), and when the transport trolley (4) transports the dismantled rail rack (1) to the next construction section, the rail rack hoist (3) in the next construction section hoists and transfers the dismantled rail rack (1) to the sleepers in the paving area; The transport trolley (4) is provided with a motor for driving it to automatically run on the rails (11) of the rail rack (1), and the motor control is connected to a remote control; four rollers at the four corners of the transport trolley (4) are provided with pressure sensors, and the pressure sensors are configured to monitor the weight distribution of the rail rack (1) on the transport trolley (4).

2. A high turnover rate ballastless track slab construction method according to claim 1, characterized in that: The motor is control-connected to a balance controller, and the plurality of pressure sensors are control-connected to the balance controller.

3. A high turnover rate ballastless track slab construction method according to claim 2, characterized in that: The balancing controller is configured to connect the motor to the remote controller only when the difference between the pressure values ​​detected by any two or more of the pressure sensors and the average value of the pressure values ​​detected by the four pressure sensors meets a predetermined threshold.

4. A high turnover rate ballastless track slab construction method according to claim 3, characterized in that: At least two groups of telescopic brackets (5) are provided on both sides of the transport trolley (4) along its conveying direction, and the upper end surfaces of the lifting parts of the telescopic brackets (5) are flush with the upper end surface of the transport trolley (4).

5. A high turnover rate ballastless track slab construction method according to any one of claims 1 to 4, characterized in that: The side support device (22) comprises: A triangular support frame (221), the bottom of which has a fixing hole for the ground anchor to pass through; A bottom support screw (222) is screwed onto the triangular support frame (221) and pressed against the lower end surface of the casting template (21); The middle support screw (223) is screwed onto the triangular support frame (221) and pressed against the outer side surface of the casting template (21).

6. A high turnover rate ballastless track slab construction method according to claim 5, characterized in that: The rail hanging device (3) comprises: The gantry (31) has an inner width greater than the width of a single track bed plate; Rollers (32) are arranged at the four corners of the bottom of the gantry (31); Two electric hoists (33) are provided and are spaced apart and arranged on the top beam of the gantry (31); A lifting member, one end of which is connected to the lifting chain of the electric hoist (33) and the other end of which is used to fix the rail rack (1).

7. A high turnover rate ballastless track slab construction method according to claim 6, characterized in that: The lifting member comprises a lifting chain with a hook connected to a lifting chain of the electric hoist (33).

8. The high turnover rate ballastless track slab construction method according to claim 6, characterized in that: The lifting device comprises: A balance beam (34), the middle portion of the upper end surface of which is connected to the lifting chain of the electric hoist (33); A rail clamp (35) is provided on the lower end surface of the balance beam (34), and the rail clamp (35) is provided at both ends of the balance beam (34).

9. A high turnover rate ballastless track slab construction method according to claim 6, characterized in that: The roller (32) on one side of the gantry (31) is configured as a concave wheel (36), a guide rail (37) arranged along the paving direction of the roadbed plate is fixedly connected to the ground on one side of the casting template (21), and the concave wheel (36) is rollingly adapted on the guide rail (37).

10. The high turnover rate ballastless track slab construction method according to claim 1, characterized in that: During pouring in step S7, pouring is performed back and forth between the double-block sleepers in a zigzag pattern, and manual vibration is used. Each pouring section is equipped with at least four inserted vibrating rods, and during vibration, the vibrating rods are prevented from touching the rail rack (1).

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