Inverted-pi-shaped connecting concrete pavement of fabricated yard road and construction method of inverted-pi-shaped connecting concrete pavement

Abstract

The invention relates to a concrete pavement, in particular to an inverted-pi-shaped connecting concrete pavement of a fabricated yard road and a construction method, and belongs to the technical field of concrete pavement construction. The pavement comprises plate bodies and an inverted-pi-shaped connecting piece, the pavement at least comprises two plate bodies, connecting sleeves are embedded in the edges of the plate bodies, the two ends of the inverted-pi-shaped connecting piece are matched with the connecting sleeves of the adjacent plate bodies respectively, multifunctional sleeves are further embedded in the plate bodies, and the multifunctional sleeves are connected with the inverted-pi-shaped connecting piece. The multifunctional sleeve is arranged in the thickness direction of the plate body. According to the scheme, the technical problems that in the prior art, the mounting efficiency is low due to the high positioning requirement of the concrete slab body, and the tongue-and-groove seam of the concrete slab body is prone to damage can be solved.

Description

Technical Field

[0001] The present invention relates to a concrete pavement, in particular to an assembled field road inverted π-shaped connection concrete pavement and a construction method, belonging to the technical field of concrete pavement construction. Background Art

[0002] With the improvement of the national economy, my country's civil aviation industry has developed rapidly and its scale continues to expand. By 2025, the number of civil transport airports in my country will reach 270, with 305 runways. Furthermore, the "National Comprehensive Transportation Network Planning Outline," issued in 2021, projects that the number of transport airports will reach approximately 400 by 2035. As vital infrastructure for air connectivity, the rational design and scientific construction of airport projects are crucial to the sustainable development of civil aviation. As a core engineering component within an airport, the performance of airport pavements directly impacts flight safety and operational quality.

[0003] At present, airport pavements mainly adopt two categories: on-site paving and prefabricated pavement. For example, CN217351980U discloses a precast concrete pavement panel based on prestressed series connection, including pavement connection plate, pavement standard plate, reserved installation groove, hoisting grouting hole, leveling hole, prestressed hole, convex tongue and groove, concave tongue and groove and arc chamfer. On-site pavement paving is a traditional construction method, and its construction process includes a series of processes such as template production and formwork, mixture mixing, ingredient transportation, paving, mixture vibration, leveling and slurry, surface finishing, surface roughening, curing, grooving, cutting, expanding, cleaning and filling. Due to the influence of human factors, environmental changes, low process technology requirements and other factors, there are many construction restrictions, long cycle, high energy consumption, high pollution, large quality dispersion, poor durability and other shortcomings. In addition, maintenance is difficult, the cycle is long, the cost is high, and the technical and economic efficiency of the entire life cycle is low. When faced with emergency repairs without stopping flights, the response speed of on-site pavement paving is slow, making it difficult to meet the needs of quickly restoring normal airport operations.

[0004] Prefabricated pavements have gradually become popular in recent years. They implement the concept of factory prefabrication and are produced in a factory environment, which can effectively guarantee the quality and precision of the finished product. Compared with cast-in-place concrete airport pavements, prefabricated pavements have obvious advantages in emergency repair and construction. Prefabricated concrete slabs can be quickly transported to the site for installation, greatly shortening the repair time. However, there are still some problems with the existing prefabricated pavement technology, which limits its market application scope. Specifically, existing prefabricated pavements mostly use ordinary concrete, and the pavement connections mostly use anchor bars, pavement surface connections, etc., which have the following major problems: the positioning requirements of traditional concrete slabs are high, resulting in low installation efficiency; the horizontal loads transmitted between traditional concrete slabs will cause the tongue-and-groove joints to have high working strength and are easily damaged.

[0005] In view of the shortcomings of traditional prefabricated pavement technology, a new type of prefabricated pavement technology is urgently needed to solve these problems and improve the construction efficiency and quality of airport pavements. Summary of the Invention

[0006] In response to the above-mentioned defects of the above-mentioned prior art, the present invention proposes an assembled field road inverted π-type connection concrete pavement and construction method that sets a tolerance sleeve for positioning and sets a hidden slab bottom connection to bear horizontal loads. This solution can solve the technical problems in the prior art that the positioning requirements of the concrete slab are high, resulting in low installation efficiency and easy damage to the tongue-and-groove joints of the concrete slab.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A prefabricated field road inverted π-shaped connection concrete pavement includes a plate body and an inverted π-shaped connecting piece, the inverted π-shaped connecting piece is arranged on a side of the plate body close to the base layer, the pavement contains at least two of the plate bodies, the edges of the plate bodies are provided with connecting ports, the middle part of the connecting port is embedded with a connecting sleeve, the two ends of the inverted π-shaped connecting piece are respectively matched with the connecting sleeves of the adjacent plate bodies, a multifunctional sleeve is also embedded in the plate body, the connecting sleeve and the multifunctional sleeve are arranged along the thickness direction of the plate body; the inverted π-shaped connecting piece is accommodated in the connecting port; the inverted π-shaped connecting piece includes a connecting plate and two connecting piles, the two connecting piles are respectively arranged on both sides of the connecting plate, and the connecting piles are adapted to the connecting sleeve.

[0008] Furthermore, a concave tongue-and-groove is provided on the side wall of the plate body perpendicular to the ground, and the shape of the concave tongue-and-groove gradually narrows from the side away from the plate body to the side close to the plate body.

[0009] Furthermore, at least one connecting sleeve is provided at each side edge of the plate, and each plate is provided with at least three multifunctional sleeves. The multifunctional sleeve is a three-in-one sleeve, combining lifting, leveling, and grouting functions. The multifunctional sleeve is connected to the tongue-and-groove through an internal channel in the plate, facilitating grouting.

[0010] Furthermore, the shape of the plate body includes a rectangular, hexagonal and / or special-shaped plate.

[0011] Furthermore, the connecting sleeve is arranged on the side of the plate body close to the ground, and the connecting sleeve does not pass through the plate body; the multifunctional sleeve is embedded in the plate body and then passes through the plate body.

[0012] Furthermore, the slab is a concrete slab, and the material of the concrete slab is at least one of ordinary concrete, lightweight concrete, prestressed concrete and / or fiber reinforced concrete.

[0013] A construction method for an assembled field road inverted π-shaped connection concrete pavement specifically comprises the following steps: S101: Prefabricate the panel in a factory or on site, reserve a tongue-and-groove on the side of the panel, embed a connecting sleeve at the edge of the panel, and embed a multifunctional sleeve in the panel; S102: Hoist and lay the panels according to the design, and use inverted π-shaped connectors to connect adjacent panels; S103: After the laying is completed, the connecting piles of the inverted π-shaped connector should be inserted into the connecting sleeves of the plate body, and then the plate body is leveled using the multifunctional sleeve; S104: Tightly connect the multifunctional sleeve to the grouting machine hose and perform grouting in compartments according to the designed grouting pressure; S105: completing the treatment of the road surface and the repair of the tongue-and-groove joints between the plates.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention's prefabricated road inverted π-shaped concrete pavement connection technology, during the installation process, uses a connection sleeve for positioning with an inverted π-shaped connector, greatly reducing the difficulty of connection positioning and significantly improving installation efficiency. In terms of structural force transmission, the inverted π-shaped connector rationally shares the horizontal load, reduces the burden of the plate side gap, and significantly improves force transmission efficiency. The inverted π-shaped connector has both position limiting and force transmission capabilities, and the multifunctional sleeve integrates hoisting, leveling, and grouting, avoiding the need for pre-reserved holes on the plate surface, reducing the number of plates without pre-reserved holes, and achieving a good pavement surface forming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the plate body of the present invention; Figure 2 Schematic diagram of the structure of the inverted π-shaped connector of the present invention; Figure 3 It is a partial schematic diagram of the concrete pavement of the present invention; Figure 4 It is a schematic diagram of the plate processing steps of the present invention; Figure 5 This is a schematic diagram of the road surface paving steps of the present invention; Figure 6 It is a cross-sectional view of the inverted π-shaped connector and the plate body; Figure 7 It is a cross-sectional view of the inverted π-shaped connector and the plate body; Figure 8 It is a schematic diagram of the repair effect of the concave tongue-and-groove in the present invention. DETAILED DESCRIPTION

[0016] The following is combined with Figure 1-8The present invention will be further described in detail with specific implementations to facilitate a clear understanding of the present invention, but they do not constitute a limitation to the present invention.

[0017] As attached Figure 1-8 As shown, this embodiment relates to an assembled field road inverted π-shaped connection concrete pavement, the core components of which are a plate body 1 and an inverted π-shaped connector 4. The plate body 1 is the basic unit of the assembled concrete pavement, and at least two plate bodies 1 constitute the entire pavement. A connection port is provided at the edge of the plate body 1, and a connecting sleeve 2 is embedded in the middle of the connection port. These connecting sleeves 2 cooperate with the two ends of the inverted π-shaped connector 4 to form a key connection node between adjacent plate bodies 1. This embedded design ensures a stable connection between the connecting sleeve 2 and the plate body 1 structure, and effectively prevents loosening caused by external forces during use. By matching the two ends of the inverted π-shaped connector 4 with the connecting sleeve 2 of the adjacent plate body 1, an effective connection between the plate bodies 1 is achieved, thereby constructing the structural system of the entire pavement. The material (such as metal, high-strength engineering plastic, etc.) and specifications (diameter, length, etc.) of the connecting sleeve 2 have an important impact on the strength and stability of the connection. In actual application, the appropriate material and specifications of the connecting sleeve 2 can be selected according to the specific use environment and load requirements of the pavement. For example, in scenarios such as airport pavements that need to withstand huge loads from aircraft takeoff and landing, choosing a high-strength connecting sleeve 2 material and appropriate specifications can ensure that the connecting sleeve 2 will not easily detach from the edge of the plate 1 under extreme conditions, thereby ensuring the overall stability and safety of the pavement.

[0018] A multifunctional sleeve 3 is also embedded in the plate body 1. The multifunctional sleeve 3 is arranged along the thickness direction of the plate body 1. This design is innovative. The multifunctional sleeve 3 is a three-in-one sleeve that combines the functions of lifting, leveling, and grouting. The multifunctional sleeve 3 is connected to the recessed groove 101 through an internal channel in the plate body 1, which facilitates grouting. The multifunctional sleeve 3 has multiple functions. For example, during the construction process, it can be used as a lifting point, making it convenient to use lifting equipment to lift the plate body 1 to a designated location for installation, thereby improving construction efficiency. At the same time, the multifunctional sleeve 3 can also be used for leveling work during the installation of road panels. By inserting an adjustment device (such as a screw, etc.) into the sleeve, the horizontality of the plate body 1 can be accurately adjusted to ensure that the overall flatness of the road surface meets the requirements, providing protection for the smooth operation of vehicles such as aircraft. In addition, the multifunctional sleeve 3 can also be used for grouting operations. After the pavement is put into use, if there is a gap between the plate body 1 and the base layer, the filling material can be injected into the gap through the multifunctional sleeve 3 to enhance the bonding strength between the plate body 1 and the base layer and extend the service life of the pavement. In this embodiment, Figure 1As shown, the connection port 102 provided on the plate body 1 is one of the key structures for realizing efficient splicing of assembled pavement. The connection port 102 is cleverly designed at the edge of the plate body 1 and is connected to the connecting sleeve 2, forming a concealed connection method. This design not only enables the inverted π-shaped connector 4 to be firmly accommodated in the connection port 102, but also visually maintains the neatness and beauty of the surface of the plate body 1, avoiding the abruptness and inharmoniousness that may appear in traditional connection methods. In practical applications, this hidden connection port 102 can effectively reduce the interference of external factors on the connection part, such as rainwater erosion, dust accumulation, etc., thereby extending the service life of the pavement. At the same time, the concealment of the connection port 102 also helps to improve the safety of the pavement, avoiding accidental damage or accidents that may be caused by the exposure of the U-shaped inverted π-shaped connector 4.

[0019] The concealed design of the connection port 102, located at the bottom of the plate 1, not only enhances the aesthetics and safety of the road surface but also addresses the high positioning requirements and low installation efficiency of traditional road surfaces. Furthermore, the inverted π-shaped connector 4 can also bear horizontal loads transmitted from the road surface, reducing the working intensity of the gap between the connected plates 1 and improving force transmission efficiency. Thus, the concealed inverted π-shaped connector 4 combines both position limiting and force transmission capabilities.

[0020] In this embodiment, Figure 2 As shown, the inverted π-shaped connector 4 comprises a connecting plate 401 and two connecting stakes 402, one on each side of the connecting plate 401. The vertical diameter of the connecting stakes 402 is slightly smaller than the diameter of the connecting sleeve 2. The inverted π-shaped connector 4 is typically composed of a connecting steel plate and small steel stakes, which are welded together to form a single piece. When the panels 1 are spliced together, the small steel stakes penetrate into the connecting sleeve 2, which is embedded along the thickness of the panel 1's connection opening 102. The inverted π-shaped connector 4 serves both a connecting and a retaining function.

[0021] In this embodiment, a recessed groove 101 is provided on the side wall of the plate body 1 perpendicular to the ground, and the shape of the recessed groove 101 is gradually narrowed from the side away from the plate body 1 to the side close to the plate body 1. The recessed groove 101 between the two plate bodies 1 can form a closed space for grouting, and the slurry can fill the tiny space inside the recessed groove 101 and the splicing gap of the plate bodies 1. After solidification, the slurry is like forming a solid "concrete bond" between the adjacent plate bodies 1, greatly enhancing the connection strength between the plate bodies 1. The connection parts of the recessed groove 101 reinforced by grouting can effectively distribute these loads evenly to the adjacent plate bodies 1, avoiding damage to the plate body 1 or loose connection caused by local stress concentration, thereby significantly improving the overall bearing capacity and structural stability of the pavement. By grouting the recessed groove 101, the slurry can form a dense waterproof barrier after solidification, effectively preventing rainwater from penetrating into the interior of the plate body 1 and the connection parts. This not only prevents problems such as steel bar corrosion (if the plate body 1 is a reinforced concrete structure) and material aging caused by moisture erosion of the plate body 1, but also avoids the softening and settlement of the foundation caused by moisture accumulation under the plate body 1, thereby greatly extending the service life of the pavement and reducing long-term maintenance costs.

[0022] The shape of the groove 101 gradually narrows from the side away from the plate 1 to the side closer to the plate 1, acting like a clever "lock," providing precise positioning and a secure connection between adjacent plates 1. When adjacent plates 1 are joined, the gradually narrowing shape of the groove 101 allows the plates 1 to fit tightly together. Like two pieces of a puzzle, this unique shape allows them to fit together precisely, forming a continuous, well-performing structure. In actual use, pavements are subject to a variety of complex external forces, such as the tremendous impact of aircraft takeoff and landing and the friction of moving vehicles. The narrowing shape of the groove 101 allows adjacent plates 1 to better restrain and support each other when subjected to external forces. Due to its unique shape, when subjected to force, the interlocking portions of the plates 1 compress against each other, effectively distributing and transferring the load and avoiding localized stress concentration. This not only improves the overall load-bearing capacity of the pavement but also reduces the risk of damage to the plates 1 and loose connections caused by stress concentration.

[0023] In this embodiment, at least one connecting sleeve 2 is provided at the edge of each side of the plate body 1 to facilitate connection with the connected pair of plate bodies 1. At the same time, the number of connecting sleeves 2 on each side can be increased according to actual conditions to evenly disperse the forces from the adjacent plate bodies 1, ensuring that the connection parts will not be damaged due to excessive local forces. Each plate body 1 is provided with at least three of the multifunctional sleeves 3. The functional sleeve is like a jack of all trades in the plate body 1, having multiple functions such as lifting, leveling and grouting. During the construction stage, when the plate body 1 needs to be lifted to a designated location, three or more multifunctional sleeves 3 can provide multiple reliable lifting points. Construction personnel can flexibly select appropriate lifting points according to the weight, shape and on-site construction conditions of the plate body 1 to ensure that the plate body 1 remains balanced during the lifting process, and to avoid tilting or even damage to the plate body 1 due to uneven force at a single point. During the installation and leveling of the slab 1, by inserting the corresponding leveling device into the multifunctional sleeve 3, construction workers can fine-tune the horizontality of the slab 1 from multiple angles, precisely controlling the installation position of the slab 1 and ensuring that the overall flatness of the pavement meets strict standards. During the maintenance phase after the pavement is put into use, the grouting function of the multifunctional sleeve 3 is highlighted. If gaps appear between the slab 1 and the base layer, or if signs of looseness appear at the connection, multiple multifunctional sleeves 3 can be used simultaneously to perform grouting operations, allowing the slurry to more evenly fill the gaps, strengthen the connection, and effectively extend the service life of the pavement.

[0024] In this embodiment, the shape of the plate body 1 includes a rectangle, a hexagon or other special-shaped plates, such as a chamfered plate, an arc-shaped end plate, etc., as long as it is easy to match with the adjacent plate body 1. Figure 3 As shown, from a construction perspective, the rectangular plate 1 is easy to process and manufacture, and production equipment can efficiently mass-produce according to standard dimensions, greatly improving production efficiency. Furthermore, the rectangular shape has distinct corners, allowing for clear positioning and installation during assembly at the construction site. The operation is relatively simple and convenient, effectively shortening the construction period. In terms of mechanical properties, the rectangular plate 1 exhibits a relatively regular force distribution. When subjected to vertical loads such as aircraft takeoff and landing, the four corners and four sides of the rectangular plate 1 evenly distribute the load, ensuring structural stability for the entire plate 1. For example, on an airport runway, the rectangular plates 1 can be rationally arranged and combined to form a tightly connected pavement structure, effectively resisting the immense impact and friction generated by aircraft takeoff and landing. Furthermore, the shape of the rectangular plate 1 facilitates neatly finished pavement edges, facilitating smooth integration with surrounding facilities, such as roadside shoulders and drainage systems, and enhancing the overall functionality and aesthetics of the pavement. The hexagon, with its six sides, allows for more directional connections when spliced than a rectangle. In practical applications, the hexagonal plates 1 can be nested with each other to form a honeycomb structure, which has excellent stability and integrity and can better adapt to complex stress environments.

[0025] In this embodiment, the connecting sleeve 2 is arranged on the side of the plate body 1 close to the ground, and the connecting sleeve 2 does not penetrate the plate body 1. This arrangement of the connecting sleeve makes the pavement surface smooth and simple, without any abrupt holes or protruding structures caused by the penetration of the connecting sleeve 2. When people look down at the airport runway from the air or observe the pavement from a close distance on the ground, what comes into view is a continuous, smooth surface, like a huge, carefully paved flat plate, which greatly improves the overall aesthetics of the pavement. The multifunctional sleeve 3 is embedded in the plate body 1 and penetrates the plate body 1. During the maintenance phase after the pavement is put into use, the penetration characteristics of the multifunctional sleeve 3 enable grouting operations to be carried out efficiently. When a gap appears between the plate body 1 and the base layer or the connection shows signs of looseness, slurry can be injected from the multifunctional sleeve 3 above the plate body 1. The slurry can be evenly filled into the gap below the plate body 1 along the penetrating sleeve channel, strengthening the connection and effectively extending the service life of the pavement.

[0026] In this embodiment, the slab 1 is a concrete slab 1, and the material of the concrete slab 1 is at least one of ordinary concrete, lightweight concrete, prestressed concrete and / or fiber-reinforced concrete. In actual engineering, the material of the concrete slab 1 is often selected by comprehensively considering multiple factors based on different engineering requirements and site conditions. Sometimes a single material is used, and sometimes multiple materials are combined to achieve optimal performance and economic benefits. For example, in some large airport projects, the main runway may use a prestressed concrete slab 1 to meet high-strength load requirements, while parts of the apron may use lightweight concrete slabs 1 to reduce costs and alleviate ground bearing pressure.

[0027] In another embodiment, Figure 4-8 As shown, this embodiment designs a construction method for an assembled field road inverted π-shaped connection concrete pavement, which specifically includes the following steps: S101: Complete the scale prefabrication of the plate body 1 in the factory or on site through the assembled template, and reserve the concave tongue and groove 101 on the side of the plate body 1. The mold should have high precision to ensure that the concave tongue and groove 101 is accurate in size and regular in shape. During the reservation process, strictly control the concrete pouring process to ensure that the edge of the concave tongue and groove 101 is smooth and without defects, providing good conditions for the subsequent splicing of the plate body 1. Pre-embed the connecting sleeve 2 at the edge of the plate body 1. When pre-embedding, use a positioning fixture to fix the sleeve to prevent displacement during the concrete pouring process. When pre-embedding the multifunctional sleeve 3 in the plate body 1, the multifunctional sleeve 3 passes through the plate body 1. During the pre-embedding process, it must be ensured that it is perpendicular to the surface of the plate body 1 and the position is accurate. The sleeve can be precisely positioned by pre-setting holes on the template before pouring concrete to ensure the position accuracy of the sleeve in the plate body 1.

[0028] S102: Use a special lifting device to connect with the multifunctional sleeve 3 to ensure that the lifting points are evenly distributed and the plate 1 remains balanced during the lifting process. During lifting, the speed should be steady to avoid shaking and collision of the plate 1. After reaching the top of the laying position, slowly descend, and the construction personnel will assist in positioning the plate 1 to ensure that the plate 1 is accurately positioned. After the adjacent plate 1 is in place, immediately install the inverted π-shaped connector 4. Place the connecting plate 401 of the inverted π-shaped connector 4 in a suitable position so that the connecting pile 402 is aligned with the connecting sleeve 2. During the installation process, ensure that the axis of the connecting pile 402 coincides with the connecting sleeve 2 to avoid damage caused by forced insertion. Small positioning tools can be used to assist in installation to ensure the installation accuracy of the inverted π-shaped connector 4.

[0029] S103: After paving is complete, the connecting pegs 402 of the inverted π-shaped connectors 4 are inserted into the connecting sleeves 2 of the slab 1. The slab 1 is then leveled using the multifunctional sleeve 3. Specifically, a screw is inserted into the multifunctional sleeve 3, and the height of the slab 1 is fine-tuned by rotating the adjustment nut. During the leveling process, the horizontality of the slab 1 is monitored in real time using a level, total station, or other measuring instrument. Using the designed pavement elevation as a reference, the flatness error of each slab 1 is ensured to be within the allowable range.

[0030] S104: Tightly connect the multifunctional sleeve 3 to the grouting machine hose and perform grouting in separate compartments according to the designed grouting pressure. Tightly connect the grouting machine hose to the multifunctional sleeve 3 to prevent grouting leakage. Perform grouting in separate compartments according to the designed grouting pressure. During the grouting process, closely observe the changes in grouting pressure and slurry flow. If slurry overflows from an adjacent multifunctional sleeve 3, it indicates that the area is fully filled. Grouting can be stopped and the next compartment can be grouting. After grouting is completed, clean the grouting equipment and pipelines promptly to avoid slurry residue.

[0031] S105: The pavement surface is treated using a grinder, cleaning equipment, and other equipment. Stains and bumps on the slabs 1 that were created during construction are removed to create a smooth, even surface. The grooves 101 between the slabs 1 are patched with a material compatible with the concrete of the slabs 1.

[0032] In this embodiment, the plate body 1 is hoisted by means of the multifunctional sleeve 3, and the number of the multifunctional sleeves 3 is no less than 3. The number of multifunctional sleeves 3 is 4, which provides a reliable guarantee for the hoisting of the plate body 1. During the hoisting process, multiple sleeves can disperse the gravity borne by the plate body 1, avoiding the risk of tilting or even breaking of the plate body 1 caused by single-point force. Taking the common rectangular plate body 1 as an example, when a crane is used to hoist the plate body 1 through 3 or more multifunctional sleeves 3 evenly distributed on the plate body 1, the tension borne by each sleeve is relatively balanced, so that the plate body 1 always remains stable during the hoisting process. This stability not only ensures the safe transportation of the plate body 1, but also effectively prevents potential threats to surrounding construction personnel and facilities caused by the shaking of the plate body 1.

[0033] The above is merely a preferred embodiment of the present invention and does not constitute any formal limitation on the structure of the present invention. The layout and number of the present invention are not limited to this example and can be optimized according to actual engineering practices. Any modifications, equivalent changes, and decorations to the above embodiment based on the technical principles of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An assembled field road inverted π-type connection concrete pavement, characterized by: The invention comprises a plate body (1) and an inverted π-shaped connecting member (4), wherein the inverted π-shaped connecting member (4) is arranged on a side of the plate body (1) close to the base layer, the road surface comprises at least two of the plate bodies (1), a connecting port (102) is provided at the edge of the plate body (1), a connecting sleeve (2) is embedded in the middle of the connecting port (102), and both ends of the inverted π-shaped connecting member (4) are respectively matched with the connecting sleeve (2) of the adjacent plate body (2), and the plate body (1) is also embedded with a connecting sleeve (2) A multifunctional sleeve (3), the connecting sleeve (2) and the multifunctional sleeve (3) are arranged along the thickness direction of the plate body (1); the inverted π-shaped connecting piece (4) is accommodated in the connecting port (102); the inverted π-shaped connecting piece (4) comprises a connecting plate (401) and two connecting piles (402), the two connecting piles (402) are respectively arranged on both sides of the connecting plate (401), and the connecting piles (402) are adapted to the connecting sleeve (401).

2. The assembled field road inverted π-shaped connection concrete pavement according to claim 1, characterized in that: A concave tongue-and-groove (101) is provided on a side wall of the plate body (1) perpendicular to the ground, and the shape of the concave tongue-and-groove (101) gradually narrows from a side away from the plate body (1) to a side close to the plate body (1).

3. The assembled field road inverted π-shaped connection concrete pavement according to claim 2, characterized in that: At least one connecting sleeve (2) is provided at each side edge of the plate body (1), and each plate body (1) is provided with at least three multifunctional sleeves (3). The multifunctional sleeve (3) is a three-in-one sleeve having the functions of hoisting, leveling and grouting. The multifunctional sleeve (3) is connected to the concave tongue-and-groove (101) through an internal channel in the plate body (1), thereby facilitating grouting.

4. The assembled field road inverted π-shaped connection concrete pavement according to claim 1, characterized in that: The shape of the plate body (1) includes a rectangular, hexagonal and / or special-shaped plate.

5. The assembled field road inverted π-shaped connection concrete pavement according to claim 1, characterized in that: The connecting sleeve (2) is arranged on the side of the plate body (1) close to the ground, and the connecting sleeve (2) does not penetrate the plate body (1); the multifunctional sleeve (3) penetrates the plate body (1) after being embedded in the plate body (1).

6. The assembled field road inverted π-shaped connection concrete pavement according to claim 5, characterized in that: The slab (1) is a concrete slab, and the material of the concrete slab is at least one of ordinary concrete, lightweight concrete, prestressed concrete and / or fiber-reinforced concrete.

7. A construction method for an assembled field road inverted π-shaped connection concrete pavement according to any one of claims 1 to 6, characterized in that: The specific steps include: S101: completing the prefabrication of the plate body (1) in a factory or on site, reserving a recessed groove (101) on the side of the plate body (1), pre-embedding a connecting sleeve (2) at the edge of the plate body (1), and pre-embedding a multifunctional sleeve (3) in the plate body; S102: Hoist and lay the panels according to the design, and use inverted π-shaped connectors to connect adjacent panels (1); S103: After the laying is completed, the connecting piles of the inverted π-shaped connector should be inserted into the connecting sleeve (2) of the plate body (1), and then the plate body is leveled using the multifunctional sleeve (3); S104: The multifunctional sleeve (3) is tightly connected to the hose of the grouting machine, and grouting is performed in compartments according to the designed grouting pressure; S105: completing the treatment of the road surface and the repair of the grooves (101) between the plates (1).

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