Prefabricated pavement panel structure and construction method thereof

Abstract

The application provides an assembled pavement panel structure and a construction method thereof and belongs to the technical field of assembled buildings. The assembled pavement panel structure comprises a pavement panel, a leveling assembly is arranged on the pavement panel, the leveling assembly comprises an outer sleeve, the outer sleeve is embedded in the pavement panel, an inner pipe body capable of being lifted and adjusted is in threaded connection with the outer sleeve, the inner pipe body has a cavity penetrating from top to bottom, a slot hole is formed in the top of the inner pipe body along a circumferential wall, a supporting leg is fixedly connected with the bottom of the inner pipe body, the leveling assembly is detachably connected with a force applying assembly, the force applying assembly comprises a main pipe body, a base is connected with the bottom of the main pipe body, a clamping jaw is rotatably connected with the base along a circumference, the clamping jaw is adaptively clamped with the slot hole, a center rod is arranged in the main pipe body, a conical head is connected with the bottom end of the center rod, and the clamping jaw can be accommodated or opened when the center rod drives the conical head to move up and down. The application truly realizes hoisting-leveling-grouting integration, integrated design, convenient operation and great improvement of construction efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of prefabricated buildings, and particularly relates to a prefabricated pavement slab structure and a construction method thereof. BACKGROUND

[0002] At present, most of the temporary roads on construction sites in China use disposable cast-in-place concrete, which directly leads to the following consequences: first, a large amount of construction waste is generated, causing resource waste; second, it increases the difficulty of achieving the energy saving and emission reduction target in China.

[0003] As a major change in construction methods, prefabricated buildings have unique advantages in terms of resource and energy saving. Relevant data shows that more than one-third of total social energy consumption is building energy consumption. Prefabricated components realize carbon reduction in various aspects of the whole life cycle, including construction, interior decoration, and later use, with water saving of 20.5% per square meter, carbon reduction of 7.5%, and garbage reduction of 77.7%, greatly alleviating the problem of high energy consumption of traditional buildings.

[0004] In combination with the requirements of green construction, the development and application research of prefabricated pavement slabs in building engineering can reduce resource waste and construction waste, achieve energy saving and emission reduction, and improve economic and social benefits.

[0005] Prefabricated cement concrete pavement has the advantages of high bearing capacity, good durability, fast opening to traffic, energy saving and environmental protection, and is the best choice for rapid paving and repairing pavement. With the continuous in-depth research of prefabricated technology, prefabricated concrete pavement has been applied to a certain extent in airport pavements. Hoisting, leveling and grouting are necessary steps in the construction process of prefabricated concrete pavement. However, the existing technology completes the three functions through different accessories, for example, a pre-embedded lifting hook is used to realize hoisting, and after paving, the lifting hook position needs to be leveled; a reserved through hole is used to complete the bottom grouting of the slab. The existing devices applied to prefabricated pavement hoisting and leveling mainly have the following problems: the hoisting and leveling devices are scattered, causing multiple openings and grooves in the prefabricated slab, increasing the complexity of the prefabrication process, and the overall construction is relatively troublesome, affecting the construction efficiency.

[0006] In order to solve this technical problem, through preliminary search, the existing patent also has a pavement panel integrated with lifting, leveling and grouting, such as the patent disclosed in the authorized announcement No. CN216786734U, an airport assembled pavement lifting, leveling and grouting integrated device, which comprises a lifting ring device and a leveling and grouting device; the lifting ring device is arranged on the upper part of the leveling and grouting device. The above-mentioned device still has the following technical problems: (1) according to the traditional lifting ring, the lifting ring is connected with the chain of the lifting frame, when the lifting ring is screwed, the chain needs to be rotated together, which is time-consuming and laborious; in addition, the screwing mode is slow; (2) the screwing of the leveling bolt is more conventional, the top generally adopts the traditional internal hexagonal hole, slot or cross slot mode, and is screwed by the matching screwdriver tool, but because the pavement panel itself is heavy, it is not easy to apply force when screwing and leveling, which makes screwing more difficult; (3) the above-mentioned device has many components, which is complicated, before leveling, the lifting ring bolt, lifting ring nut and other components need to be screwed and disassembled, which affects the construction speed; in addition, spring holes, springs and other components are also provided, the processing technology is complicated, and the assembly is relatively troublesome, such as the fixation between the spring and the spring hole, which is a difficulty, and the technology is not easy to realize, the overall processing and manufacturing cost is relatively high, and in the promotion and application, it does not meet the construction requirements of convenience, speed and low cost. SUMMARY

[0007] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, a kind of assembled pavement panel structure and its construction method are provided.

[0008] The technical scheme adopted by the present application to solve its technical problems is:

[0009] The present application provides an assembled pavement panel structure, which comprises a pavement panel, a plurality of leveling assemblies are arranged on the pavement panel, and the leveling assembly comprises:

[0010] An outer sleeve is embedded in the pavement panel;

[0011] An inner tube body is liftable and adjustable, and the inner tube body is threadedly connected with the outer sleeve; the inner tube body has a cavity passing through up and down; a plurality of slot holes are formed in the top of the inner tube body along the circumferential wall;

[0012] A support foot is fixedly connected with the bottom of the inner tube body; the support foot is provided with a flow slurry hole in communication with the cavity for slurry flow;

[0013] Further comprising a force applying assembly detachably connected with the leveling assembly, the force applying assembly comprising a main pipe body, a base in a barrel shape connected to the bottom of the main pipe body, at least two groups of clamping claws rotatably connected with the base along the circumference, and the clamping claws being adapted to be clamped with the slots; a cap threadedly connected to the top of the main pipe body, a center rod arranged in the main pipe body, a conical head connected to the bottom end of the center rod, the conical head having a large end on the top and a small end on the bottom; the conical head being arranged in the area surrounded by the clamping claws; one end of the clamping claws being respectively attached to the outer wall of the conical head; the top end of the center rod extending to the outside through the cap; when the center rod drives the conical head to move up and down, the clamping claws can be closed or opened.

[0014] Preferably, the base is provided with uniformly arranged notches along the circumference, a pin shaft is connected in the notches, and the clamping claws are rotatably connected with the pin shaft; a wheel frame is connected to the top of the clamping claws, a pulley is rotatably connected to the wheel frame; the pulley is attached to the outer wall of the conical head; a pull rope is fixed to the clamping claws, and the other end of the pull rope is fixed to the center rod or the outer wall of the conical head; when the center rod is pulled up, the clamping claws are opened; when the center rod moves down, the clamping claws are closed.

[0015] Preferably, the top end of the center rod is fixedly connected with a lifting ring.

[0016] Preferably, the bottom of the outer sleeve has a bottom hole, the bottom end of the center rod freely penetrates through the bottom hole; the center of the cap has a center hole, and the top end of the center rod freely penetrates through the center hole.

[0017] Preferably, the inner wall of the outer sleeve is fixedly connected with a boss, the inner pipe body is threadedly connected with the boss; and a gap is formed between the inner pipe body and the outer sleeve.

[0018] Preferably, the outer wall of the outer sleeve is fixedly connected with a force applying rod.

[0019] Preferably, the leveling assembly further comprises a sealing cover, the sealing cover comprising a cover body pressed on the top of the outer sleeve, a sleeve fixedly connected to the bottom of the cover body, and the sleeve being inserted in the gap.

[0020] The application further provides a construction method of the prefabricated pavement panel structure, comprising the following steps:

[0021] S1: hoisting

[0022] S11: When hoisting, the force applying assembly is used as a bridge between the leveling assembly and the existing chain; one set of lifting frame has four chains, and four sets of force applying assemblies are needed for hoisting one slab; the chain of the existing lifting frame is connected with the lifting ring at the top of the corresponding force applying assembly; the top of the lifting frame is connected with the lifting hook of the crane; the claw is placed in the corresponding position in the groove of the inner tube body, the lifting ring is pulled upward, the lifting ring drives the center rod and the conical head to move upward, in the process of moving upward, the conical head drives the pull rope to rotate the claw around the corresponding pin shaft, the bottom end of the claw extends outward until it is clamped with the corresponding groove; the crane continues to lift, and the slab is moved to the designated position;

[0023] S12: After hoisting to the designated position and supporting the slab on the ground, the lifting frame is lowered, the conical head automatically moves downward under the action of gravity, and the claw returns to the original position; the force applying assembly is separated from the leveling assembly, and the force applying assembly is removed by the worker, and the hoisting of the next slab is completed;

[0024] S2: Leveling

[0025] When leveling, another set of force applying assemblies is selected, and the force applying assembly is used as a leveling tool; first, the claw is placed in the corresponding position in the groove of the inner tube body, the lifting ring is pulled upward, the lifting ring drives the center rod and the conical head to move upward, in the process of moving upward, the conical head drives the pull rope to rotate the claw around the corresponding pin shaft, the bottom end of the claw extends outward until it is clamped with the corresponding groove; after clamping, the cap is screwed to move upward until the cap moves to the position below the lifting ring, the cap limits the position of the center rod and keeps the clamping state of the claw; then two people cooperate to rotate the force applying rod to drive the force applying assembly to rotate, thereby driving the inner tube body to rotate, achieving the lifting of the inner tube body, and finally achieving the leveling of the slab; after leveling, the force applying assembly is disassembled, and the next slab leveling process is performed;

[0026] S3: Grouting

[0027] The grouting sleeve is inserted into the inner tube body, the slurry flows through the inner tube body and the flow hole of the supporting foot to the surrounding, and the grouting of the bottom of the slab is realized.

[0028] Compared with the prior art, the present application has the following advantages:

[0029] 1. The structure truly realizes the integration of hoisting, leveling and grouting, the force applying assembly is not only used as a bridge between the leveling assembly and the existing chain during hoisting, but also can be used as a tool for rotating the inner tube body during leveling, one machine has multiple uses, no additional tools are needed, the assembly and disassembly are rapid, the operation is convenient, and the construction efficiency can be greatly improved.

[0030] 2. The force-applying component adopts a structure consisting of claws, a conical head, and a central rod. During lifting, the upward pulling force automatically opens the claws, allowing for automatic engagement and locking, eliminating the need for manual tightening and simplifying the installation process. During disassembly, the claws automatically reset due to gravity, eliminating the need for secondary tightening and disassembly. This automatic descent and separation truly achieves quick installation and disassembly, saving time and effort. Furthermore, the claw-locking structure replaces the existing flathead or Phillips head screwdrivers, making force application more convenient. Even with a heavy track panel, the inner tube can be easily rotated, and the torque can be increased using the force-applying rod, making leveling easier.

[0031] 3. The leveling component uses an inner tube with a hollow structure, utilizing the cavity of the inner tube itself as a grouting channel, eliminating the need for additional grouting holes and simplifying the prefabrication process for the pavement panels. Moreover, the leveling component does not contain complex structures such as springs, making the structure simpler, easier to process, manufacture, and assemble, enabling rapid mass production, reducing costs, and meeting the needs of convenient, fast, and low-cost construction. Attached Figure Description

[0032] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0033] Figure 1 This is a perspective view of the single-panel track structure proposed in this invention (in the leveling operation state).

[0034] Figure 2 This is a cross-sectional view showing the relationship between the track panel and the leveling component of this invention.

[0035] Figure 3 This is a three-dimensional structural diagram of the leveling component in this invention.

[0036] Figure 4 yes Figure 3 A cross-sectional view of the structure of the leveling component.

[0037] Figure 5 This is a three-dimensional structural view of the force-applying component in this invention (claw retracted state).

[0038] Figure 6 yes Figure 5 Enlarged schematic diagram of the structure of region F in the middle.

[0039] Figure 7 yes Figure 5 A cross-sectional view of the force-applying component.

[0040] Figure 8 yes Figure 7 Enlarged schematic diagram of the structure of region G in the middle.

[0041] Figure 9 is Figure 5 Structure diagram of the force applying assembly from another angle.

[0042] Figure 10 is Figure 9 Structure diagram of the H area in the force applying assembly.

[0043] Figure 11 Structure diagram of the force applying assembly (claw open state).

[0044] Figure 12 is Figure 11 Structure diagram of the A area in the force applying assembly.

[0045] Figure 13 is Figure 11 Structure diagram of the force applying assembly (claw open state).

[0046] Figure 14 is Figure 13 Structure diagram of the B area in the force applying assembly.

[0047] Figure 15 Structure diagram of the force applying assembly and the leveling assembly.

[0048] Figure 16 is Figure 15 Structure diagram of the force applying assembly and the leveling assembly.

[0049] Figure 17 Structure diagram of the multiple pavement panels after assembly.

[0050] Figure 18 Structure diagram of the leveling assembly in another embodiment.

[0051] Explanation of reference signs:

[0052] 1 - pavement panel; 101 - recessed groove;

[0053] 2 - force applying assembly; 21 - main pipe body; 211 - bottom hole; 22 - base; 23 - slot; 24 - claw; 241 - pin shaft; 242 - pulley; 243 - pull rope; 25 - cap; 251 - center hole; 26 - center rod; 261 - conical head; 27 - lifting ring; 28 - force applying rod; 29 - support base;

[0054] 3 - leveling assembly; 301 - outer sleeve; 302 - boss; 303 - inner pipe body; 304 - support foot; 305 - flow hole; 306 - slot hole; 307 - closing cover. DETAILED DESCRIPTION

[0055] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0056] Example 1

[0057] like Figures 1-17 As shown, this embodiment proposes a prefabricated pavement panel structure, including a pavement panel 1, which is prefabricated from cement concrete. The edge of the pavement panel 1 has multiple sets of recessed grooves 101, with threaded sleeves embedded in the grooves 101. During assembly, connecting plates are placed at adjacent threaded sleeves, and high-strength bolts are threaded through the connecting plates. The high-strength bolts are adapted to connect with the threaded sleeves, achieving a self-locking connection between adjacent pavement panels 1. Each pavement panel 1 is provided with several sets of leveling components 3. In this embodiment, a set of leveling components 3 is provided at each of the four corners of a single pavement panel 1, enabling corner leveling. The aforementioned leveling components 3 include:

[0058] The outer sleeve 301 is pre-embedded in the pavement panel 1 and is welded to the internal skeleton steel bars of the pavement panel 1 at a suitable position.

[0059] The inner tube 303 is adjustable in height. In this embodiment, the inner tube 303 is threadedly connected to the outer sleeve 301. By screwing the inner tube 303, the inner tube 303 can be adjusted up and down, thereby achieving leveling. In this embodiment, the inner tube 303 has a cavity that runs vertically through it. This cavity serves as a flow channel during grouting. The top of the inner tube 303 has several slots 306 along the circumferential wall. These slots 306 serve as connection holes during hoisting and as screwing points for applying force during leveling.

[0060] The support foot 304 is fixedly connected to the bottom of the inner tube 303; the support foot 304 has a slurry flow hole 305 that communicates with the cavity for slurry flow; the support foot 304 increases the contact area and can provide more stable support.

[0061] It also includes a force-applying component 2 that is detachably connected to the leveling component 3. The force-applying component 2 serves two purposes, and its structure is described in detail below:

[0062] The force-applying component 2 includes a main body 21, and a cylindrical base 22 is connected to the bottom of the main body 21. At least two sets of claws 24 are rotatably connected to the base 22 along the circumferential direction. In this embodiment, four sets are provided. Correspondingly, four sets of slots 306 are also provided. The claws 24 can be adapted to engage with the slots 306.

[0063] The top of the main pipe body 21 is threadedly connected with a cap 25, which mainly plays a guiding and supporting limiting role; the main pipe body 21 is provided with a center rod 26, the bottom end of the center rod 26 is connected with a conical head 261, the large end of the conical head 261 is upward and the small end is downward; the conical head 261 is arranged in the area surrounded by the claws 24, the four groups of claws 24 surround the conical head 261; one end of the claws 24 is respectively attached to the outer wall of the conical head 261, when the conical head 261 moves, one end of the claws 24 can move along the surface of the conical head 261, thereby realizing the adjustment of the position; the top end of the center rod 26 freely extends to the outside through the cap 25; when the center rod 26 drives the conical head 261 to move up and down, the claws 24 can be accommodated or opened.

[0064] The specific structure of the claws 24 can adopt the following form:

[0065] The base 22 is provided with uniformly arranged notches 23 along the circumference, the notches 23 are connected with pin shafts 241, the claws 24 are rotationally connected with the pin shafts 241, the notches 23 are sufficient to accommodate the claws 24 and can rotate the claws 24; in order to reduce the friction, the top of the claws 24 is connected with a wheel frame, the wheel frame is rotationally connected with a pulley 242, the pulley 242 is attached to the outer wall of the conical head 261; by using the rolling of the pulley 242, the friction can be effectively reduced and the sliding is more smooth; the claws 24 are fixedly connected with a pull rope 243, the other end of the pull rope 243 is fixedly connected with the outer wall of the center rod 26 or the conical head 261, when the conical head 261 moves upward, the claws 24 can be driven to rotate, thereby realizing the adjustment of the state; specifically, when the center rod 26 is pulled upward, the claws 24 are opened; when the center rod 26 moves downward, the claws 24 are accommodated.

[0066] When hoisting, in order to be convenient for connecting and fixing with the existing lifting frame, the top end of the center rod 26 is fixedly connected with a lifting ring 27. The lifting ring 27 is connected with the lock chain at the bottom of the lifting frame.

[0067] In the embodiment, in order to be convenient for connecting with the base 22, the bottom end of the outer sleeve 301 is a closed structure, meanwhile, the bottom center position of the outer sleeve 301 has a bottom hole, the bottom end of the center rod 26 freely penetrates through the bottom hole; the center of the cap 25 has a center hole 251, the top end of the center rod 26 freely penetrates through the center hole 251.

[0068] In order to effectively guide the middle position of the center rod 26, the inner wall of the main pipe body 21 is further connected with a support seat 29, the center rod 26 freely penetrates through the support seat 29 and can be relatively slidably connected with the support seat 29.

[0069] In the embodiment, the inner wall of the outer sleeve 301 is fixedly connected with a boss, the inner pipe body 303 is threadedly connected with the boss; the inner pipe body 303 and the outer sleeve 301 form a gap. The boss is arranged to increase the wall thickness, which can provide more effective and stable support.

[0070] In the embodiment, the outer wall of the outer sleeve 301 is fixedly connected with the force applying rod 28, and when it is necessary to screw, the force applying rod 28 can be controlled to rotate.

[0071] The application further provides a construction method of the prefabricated pavement panel structure, including the following steps.

[0072] S1: hoisting

[0073] S11: when hoisting, the force applying assembly 2 is used as a bridge connected with the existing lock chain as the leveling assembly 3; one set of lifting frame has four lock chains, and four sets of force applying assemblies 2 are needed to cooperate with the hoisting of one pavement panel 1; the lock chain of the existing lifting frame is connected with the lifting ring 27 at the top of the corresponding force applying assembly 2; the top of the lifting frame is connected with the lifting hook of the crane; the pawl 24 is built in the corresponding position of the slot hole 306 in the inner tube body 303, the lifting ring 27 is pulled upward, the lifting ring 27 drives the central rod 26 and the conical head 261 to move upward, in the process of upward movement, the conical head 261 drives the pull rope 243 to pull the pawl 24 to rotate around the corresponding pin shaft 241, the bottom end of the pawl 24 extends outward until the pawl 24 is clamped in the corresponding slot hole 306; the crane continues to lift, and the pavement panel 1 is moved to the designated position;

[0074] By using the force applying assembly 2 as part of the hoisting equipment, when lifting, the pavement panel 1 relies on the large relative sliding force between the self weight and the central rod 26, so that the pawl 24 can be tightly clamped in the slot hole 306, and in the hoisting process, the risk of unhooking does not occur during high-altitude operation, and the safety is high.

[0075] S12: after the pavement panel 1 is hoisted to the designated position and falls to the ground to be supported, the lifting frame continues to fall a distance, under the gravity of the conical head 261, the conical head 261 automatically moves downward, the pull rope 243 is loosened, the pawl 24 is pressed by the large end of the conical head 261, the pawl 24 rotates in the opposite direction and returns to the original position, the force applying assembly 2 is separated from the leveling assembly 3, at this time, the worker takes away the force applying assembly 2 for standby, and the hoisting of the next pavement panel 1 is completed.

[0076] S2: leveling

[0077] When leveling, another set of force applying assemblies 2 is selected, for example, 4 sets of force applying assemblies 2 are used for lifting, and another set of force applying assemblies 2 is used for leveling, a total of 5 sets of force applying assemblies 2 can complete the lifting-leveling work of the pavement slab 1, which is very convenient; when leveling, the force applying assembly 2 is used as a leveling tool; first, the pawl 24 is placed in the corresponding position of the slot hole 306 in the inner tube body 303, the lifting ring 27 is pulled upward, the lifting ring 27 drives the center rod 26 and the conical head 261 to move upward, in the upward movement process, the conical head 261 drives the pull rope 243 to pull the pawl 24 to rotate around the respective pin shaft 241, the bottom end of the pawl 24 extends outward, until it is clamped with the corresponding slot hole 306; after clamping, in order to keep the position of the conical head 261 at this time, the cap 25 is screwed, so that the cap 25 moves upward, until the cap 25 moves to the lower side of the lifting ring 27, the cap 25 limits the position of the center rod 26, due to the blockage of the cap 25, the center rod 26 cannot move downward, and the clamping state of the pawl 24 is well maintained; then two people cooperate to screw the force applying rod 28, drive the force applying assembly 2 to rotate, and then drive the inner tube body 303 to rotate, realize the lifting of the inner tube body 303, and finally realize the leveling of the pavement slab 1; after leveling, the force applying assembly 2 is disassembled, when disassembling, the cap 25 is unscrewed in the opposite direction, so that the center rod 26 moves downward to the specified position, then when the center rod 26 moves downward, the pawl 24 can automatically reset, and then realize the separation with the inner tube body 303, then the disassembled force applying assembly 2 is used for the next pavement slab 1 leveling process;

[0078] S3: Grouting

[0079] Insert the grouting sleeve into the inner tube body 303, and the slurry flows through the inner tube body 303 and the flow hole 305 of the supporting foot 304 to the surrounding, realizing the grouting of the bottom of the pavement slab 1.

[0080] Application effect:

[0081] First, the structure truly realizes the integration of lifting-leveling-grouting, the force applying assembly 2 not only serves as a bridge for connecting the leveling assembly 3 and the existing lock chain during lifting, but also serves as a tool for rotating the inner tube body 303 during leveling, one machine with multiple uses, no need for other additional tools, rapid disassembly and assembly, convenient operation, and can greatly improve the construction efficiency.

[0082] Second, the force applying assembly 2 adopts the structure form of the cooperation of the claw 24, the conical head 261 and the center rod 26, when hoisting, the claw 24 can be opened by the upward pulling force, and the automatic fitting clamping is realized, without the operation of the worker, the installation steps are simplified; when disassembling, the claw 24 can be automatically reset by the gravity falling, without the secondary screwing disassembling, the automatic falling, the automatic separation, the fast assembly and disassembly are truly realized, time and labor are saved; in addition, the claw 24 is clamped, instead of the structure of the existing technology of the screwdriver of the character type or the cross type, the force applying is more convenient, even if the pavement panel 1 is relatively heavy, the inner tube body 303 can be easily rotated, the torque is increased by the force applying rod 28, and the leveling is easier.

[0083] Third, the leveling assembly 3 adopts the inner tube body 303 with the hollow structure, the cavity of the inner tube body 303 is used as the grouting channel, without the additional separate grouting hole, the prefabrication of the pavement panel 1 can be simplified; and the leveling assembly 3 does not have the complex structure such as the spring, the structure is simpler, the processing, manufacturing and assembly are very easy, the batch rapid production can be realized, the cost is reduced, and the construction requirements of convenience, rapidness and low cost are met.

[0084] Embodiment two

[0085] Reference drawings Figure 18 In the embodiment, other structures are the same as those of the embodiment one, and the difference is that the leveling assembly 3 further comprises a sealing cover 307, the sealing cover 307 comprises a cover body pressed on the top of the outer sleeve 301, and the bottom of the cover body is fixedly connected with a plug sleeve inserted in the gap. The sealing cover 307 is used to block the hole, and ensure the flatness of the top surface of the pavement panel 1. The sealing cover 307 can be directly inserted after the grouting is completed.

[0086] It should be noted that when the leveling assembly 3 is pre-buried, the top of the outer sleeve 301 is reserved a certain distance from the top surface of the pavement panel 1, and when the sealing cover 307 is covered, the top of the entire pavement panel 1 can be ensured to be flat.

[0087] The embodiments of the application are described in detail above in combination with the drawings, but the application is not limited to the above embodiments, and various changes can be made within the knowledge range of the ordinary skill in the art without departing from the purpose of the application.

Claims

1. A prefabricated pavement panel structure comprising a pavement panel, on which a plurality of sets of levelling assemblies are arranged, characterised in that, The leveling assembly comprises: An outer sleeve embedded in the pavement panel; An inner tube body with adjustable lifting, which is screwed with the outer sleeve; the inner tube body has a cavity through the top and bottom; the top of the inner tube body is provided with a plurality of slot holes along the circumferential wall; Supporting feet fixedly connected with the bottom of the inner tube body; the supporting feet are provided with flow holes for slurry flow in communication with the cavity; Further comprising a force applying assembly detachably connected with the leveling assembly, the force applying assembly comprises a main tube body, the bottom of the main tube body is connected with a base in the shape of a cylinder, at least two sets of clamping claws are rotatably connected with the base along the circumference, the clamping claws are adapted to be clamped with the slot holes; the top of the main tube body is screwed with a cap, a center rod is arranged in the main tube body, the bottom end of the center rod is connected with a conical head, the large end of the conical head is upward and the small end is downward; the conical head is arranged in the area surrounded by the clamping claws; one end of the clamping claws is respectively attached to the outer wall of the conical head; the top end of the center rod extends to the outside through the cap; when the center rod drives the conical head to move up and down, the clamping claws can be accommodated or opened.

2. The prefabricated pavement slab structure according to claim 1, characterized in that The base is provided with uniformly arranged notches along the circumference, the notches are connected with pins, the clamping claws are rotatably connected with the pins; the top of the clamping claws is connected with a wheel frame, a pulley is rotatably connected with the wheel frame; the pulley is attached to the outer wall of the conical head; the clamping claws are fixedly connected with a pull rope, the other end of the pull rope is fixedly connected with the center rod or the outer wall of the conical head; when the center rod is pulled upward, the clamping claws are opened; when the center rod moves downward, the clamping claws are accommodated.

3. The prefabricated pavement slab structure according to claim 1, characterized in that The top end of the center rod is fixedly connected with a lifting ring.

4. The prefabricated pavement slab structure according to claim 1, characterized in that The bottom of the outer sleeve has a bottom hole, the bottom end of the center rod freely penetrates the bottom hole; the center of the cap has a center hole, the top end of the center rod freely penetrates the center hole.

5. The prefabricated pavement panel structure according to claim 1, wherein The inner wall of the outer sleeve is fixedly connected with a boss, the inner tube body is screwed with the boss; a gap is formed between the inner tube body and the outer sleeve.

6. The precast pavement panel structure of claim 1, wherein The outer wall of the outer sleeve is fixedly connected with a force applying rod.

7. The precast pavement panel structure of claim 5, wherein The leveling assembly further comprises a sealing cover, the sealing cover comprises a cover body pressed on the top of the outer sleeve, the bottom of the cover body is fixedly connected with a sleeve, the sleeve is inserted in the gap.

8. A method of constructing a precast pavement panel structure as claimed in any one of claims 1 to 7, wherein, The method comprises the following steps: S1: hoisting S11: when hoisting, the force applying assembly is used as a bridge connected with the existing lock chain of the leveling assembly; one set of lifting frame has four lock chains, four sets of force applying assemblies are used for hoisting one pavement panel; the lock chain of the existing lifting frame is connected with the lifting ring at the top of the corresponding force applying assembly; the top of the lifting frame is connected with the hook of the crane; the clamping claw is placed in the corresponding position of the slot hole in the inner tube body, the lifting ring is pulled upward, the lifting ring drives the center rod and the conical head to move upward, in the process of upward movement, the conical head drives the pull rope to rotate around the corresponding pin, the bottom end of the clamping claw extends outward until it is clamped with the corresponding slot hole; the crane continues to lift, driving the pavement panel to move to the designated position; S12: hoist to the designated position, the road panel landing support after; continue to let the hanger fall, under the action of the conical head gravity, the conical head automatically moves down, the claw restores to the original position; the force assembly and the leveling assembly are separated, the worker takes away the force assembly, and the hoisting of the next road panel is completed; S2: leveling When leveling, another set of force assembly is selected, and the force assembly at this time is used as a leveling tool; first, the claw is placed in the corresponding position of the slot hole in the inner tube body, the lifting ring is pulled upward, the lifting ring drives the center rod and the conical head to move upward, in the process of moving upward, the conical head drives the pull rope to pull the claw to rotate around the respective pin shaft, the bottom end of the claw extends outward, until it is clamped with the corresponding slot hole; after clamping, the cap is screwed, so that the cap moves upward until the cap moves to the lower side of the lifting ring, the cap limits the position of the center rod, and keeps the clamping state of the claw; then two people cooperate to screw the force rod, drive the force assembly to rotate, and then drive the inner tube body to rotate, realize the lifting of the inner tube body, and finally realize the leveling of the road panel; after leveling, the force assembly is disassembled, and the next road panel leveling process is carried out; S3: grouting Insert the grouting sleeve into the inner tube body, and the slurry flows through the inner tube body and the flow hole of the supporting foot to the surrounding, realizing the grouting of the bottom of the road panel.

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