Implicit multifunctional connecting concrete pavement of fabricated yard road and construction method of implicit multifunctional connecting concrete pavement

Abstract

The invention relates to a concrete pavement, in particular to a fabricated yard hidden type multifunctional connection concrete pavement and a construction method, and belongs to the technical field of concrete pavement construction. The connecting structure comprises a plate body and a connecting piece, a connecting opening is formed in the side face of the plate body in the thickness direction, the connecting piece comprises a reinforcing rib, an end plate, a lug plate, a connecting middle plate and a pin shaft, the reinforcing rib and the end plate are pre-buried in the middle of the connecting opening of the plate body, the side, away from the plate body, of the reinforcing rib is connected with the end plate, and the lug plate is connected with the connecting middle plate. The sides, away from the reinforcing ribs, of the end plates are connected with lug plates, and the lug plates of the adjacent plate bodies are connected through the connecting middle plate pin shafts. According to the scheme, the technical problems that in the prior art, the concrete slab body is high in positioning requirement and low in installation efficiency, and the rabbet seam of the concrete slab body is prone to damage are solved.

Description

Technical Field

[0001] The present invention relates to a concrete pavement, in particular to an assembled airfield implicit multi-functional connection concrete pavement and a construction method thereof, belonging to the technical field of concrete pavement construction. Background Art

[0002] With the improvement of the national economic level, the civil aviation industry in China has developed rapidly and the industry scale has been continuously expanding. As an important infrastructure for air connection, the reasonable design and scientific construction of airport projects are the key to ensuring the sustainable development of civil aviation. As the main project within the airport, the performance of the airport pavement directly affects flight safety and service quality.

[0003] At present, airport pavements mainly include two categories: in-situ paving and assembled pavements. In-situ paving is a traditional construction method, and its construction process includes a series of processes such as formwork production and formwork erection, mixture batching, transportation of ingredients, paving, mixture vibration, leveling and slurry extraction, surface finishing, surface texturing, curing, grooving, joint cutting, joint widening, joint cleaning, and joint sealing. Due to the influence of human factors, environmental changes, and low process technology requirements, there are deficiencies such as many construction restrictions, long cycle, high energy consumption, high pollution, large quality discreteness, and poor durability. Moreover, the maintenance is difficult, the cycle is long, the cost is high, and the technical economy of the whole life cycle is low. In the face of non-stop flight emergency repair situations, the response speed of in-situ paving is slow, and it is difficult to meet the demand for quickly restoring the normal operation of the airport.

[0004] Assembled pavements have gradually emerged in recent years. They implement the concept of factory prefabrication and are produced in a factory environment, which can effectively ensure the quality and precision of the finished products. Compared with cast-in-place concrete airport pavements, assembled pavements have obvious advantages in emergency repair and construction. The precast concrete slabs can be quickly transported to the site for installation, greatly shortening the repair time. However, the existing assembled pavement technology still has some problems, which limit its market application range. Specifically, most existing assembled pavements use ordinary concrete, and the pavement connections mostly adopt methods such as anchor bars and surface connections on the pavement, and there are the following main 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 high working intensity of the tongue-and-groove joints and are prone to damage.

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

[0006] In view of the above-mentioned defects existing in the prior art, the present invention proposes a prefabricated airfield implicit multi-functional connected concrete pavement and construction method that sets up a hidden connection to bear horizontal and vertical loads. This solution can solve the technical problems in the prior art, such as high positioning requirements for concrete slabs, low installation efficiency, easy damage to the keyway joints of concrete slabs, and poor formed appearance.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A prefabricated airfield implicit multi-functional connected concrete pavement, comprising a slab and a connecting member. A connection port is opened in the side surface of the slab along the thickness direction. The connecting member includes a reinforcing rib, an end plate, an ear plate, and a connecting middle plate. The reinforcing rib and the end plate are embedded in the middle of the connection port of the slab. One side of the reinforcing rib away from the slab is connected to the end plate, and one side of the end plate away from the reinforcing rib is connected to the ear plate. The ear plates of adjacent slabs are connected by the connecting middle plate.

[0008] Further, light holes are provided on the ear plates, and light holes are provided at both ends of the connecting middle plate. The two ends of the connecting middle plate are respectively connected to the ear plates of adjacent slabs and fixed by a pin shaft; the diameters of the light holes of the middle plate and the ear plate are larger than the diameter of the pin shaft (205); the reinforcing rib and the end plate are connected by threads.

[0009] Further, the connection ports of adjacent slabs can enclose a grouting hole. A sealing gasket is provided on one side of the grouting hole away from the slab. A through hole is provided on the sealing gasket, and sealing pressure control devices are arranged along the slab joint direction on both sides of the grouting hole.

[0010] Further, the sealing pressure control device is composed of a channel steel and a T-shaped tension connector with a screw rod. The channel steel and the T-shaped tension connector with a screw rod are bolted. The T-shaped tension connector with an inverted screw rod can limit the slab and assist in assembling the slab to the designed position; the channel steel, the base layer, and the grouting hole together form a continuous grouting channel between the slabs.

[0011] Further, the shape of the connection port is trapezoidal, and the shape of the connection port gradually becomes narrower from the side away from the slab to the side close to the slab. The connection port is opened in the side surface of any side of the slab along the thickness direction.

[0012] Further, a concave keyway is provided on the side wall of the slab perpendicular to the ground, and the shape of the concave keyway gradually becomes narrower from the side away from the slab to the side close to the slab.

[0013] Further, the shape of the slab includes a rectangle, a hexagon, and / or a special-shaped plate.

[0014] Furthermore, the plate body is a concrete plate body, and the material of the concrete plate body is at least one of ordinary concrete, lightweight concrete, prestressed concrete, and / or fiber-reinforced concrete.

[0015] A construction method for an assembled airfield implicit multi-functional connection concrete pavement specifically includes the following steps: S101: Prefabricate the plate body in the factory or on-site, reserve a concave rabbet on the side surface of the plate body, and embed the reinforcing bars and end plates into the plate body. S102: Arrange the screw-bar T-shaped tension connectors according to the design, hoist and lay the plate body, and level the plate body. S103: Connect the connecting middle plate and the ear plate through a pin shaft to form a hidden connector. S104: Arrange the rubber and plastic material gaskets and the seal pressure control devices according to the design for compartmentation. S105: Docking the grouting port tightly with the grouting machine, and perform compartment grouting according to the designed grouting pressure, with appropriate fullness of the joint filling. S106: Repeat S104 and S105 to complete the compartment grouting. S105: Complete the treatment of the pavement surface and the joint filling of the concave rabbets between the plate bodies.

[0016] Furthermore, when prefabricating the plate body, a connection port is opened along the thickness direction on any side surface of the plate body, and the reinforcing bars and the end plates are embedded in the middle of the connection port of the plate body.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The assembled airfield implicit multi-functional connection concrete pavement technology of the present invention sets connectors on the side surface of the plate body, which can directly realize the connection of adjacent plate bodies, greatly reducing the connection positioning difficulty and significantly improving the installation efficiency. The implicit multi-functional connection in the plate body bears the horizontal and vertical loads transmitted from the pavement, reducing the working intensity of the rabbet joint and improving the force transmission efficiency. The connection port opened in the plate body has the function of grouting, and there are no reserved holes on the surface of the main body, with good formed appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the plate body of the present invention; Figure 2 is a schematic structural diagram of the connector of the present invention; Figure 3 is a schematic grouting structural diagram of the present invention; Figure 4 is a schematic structural diagram of the plate body and the expansion tie rod of the present invention; Figure 5 is a schematic connection diagram of the rectangular plate body of the present invention; Figure 6It is a schematic diagram of the connection of the hexagonal plate body of the present invention; Figure 7 It is a schematic diagram of the processing steps of the plate body of the present invention; Figure 8 It is a schematic diagram of the disassembly and cooperation of the plate body and the connecting piece of the present invention; Figure 9 It is a schematic diagram of the crack filling effect of the concave tongue-and-groove in the present invention. Specific embodiments

[0019] The following combines the attached Figures 1-9 drawings and specific embodiments to further elaborate on the present invention, facilitating a clear understanding of the present invention, but they do not constitute a limitation to the present invention.

[0020] As shown in the attached Figures 1-6 drawings, this embodiment relates to a prefabricated airfield implicit multi-functional connected concrete pavement, and its core components are the plate body 1 and the connecting piece 2. The plate body 1 serves as the basic unit of the prefabricated concrete pavement, and at least two plate bodies 1 constitute the entire pavement. A connection port 102 is opened on the side of the plate body 1 along the thickness direction. As Figure 2 shown, the connecting piece 2 includes a reinforcing rib, an end plate 202, an ear plate 203, and a connecting middle plate 204. The reinforcing rib and the end plate 202 are embedded in the middle of the connection port 102 of the plate body 1. The side of the reinforcing rib away from the plate body 1 is connected to the end plate 202, and the side of the end plate 202 away from the reinforcing rib is connected to the ear plate 203. The ear plates 203 of adjacent plate bodies 1 are connected by the connecting middle plate 204. The hidden design of the connection port 102 on the side of the plate body 1 not only improves the overall aesthetics and safety of the pavement but also solves the problems of high positioning requirements and low installation efficiency of the traditional pavement. At the same time, the connecting piece 2 can also bear the horizontal and vertical loads transmitted by the pavement, reducing the working intensity of the tongue-and-groove joint, that is, the working intensity of the gap between the connected plate bodies 1, and improving the force transmission efficiency. Therefore, the hidden connecting piece 2 has both limiting and force transmission performances. In this embodiment, the reinforcing rib is the reinforcing bar 201.

[0021] In this embodiment, as Figure 2As shown, the ear plate 203 is provided with light holes, and both ends of the connecting middle plate 204 are provided with light holes. The existence of the light holes provides an accurate positioning and connection basis for the installation of the connecting middle plate 204. The connecting middle plate 204 is also provided with light holes at both ends, and the specifications and precision of the holes are exactly matched with the light holes on the ear plate 203. When splicing adjacent plate bodies 1, the two ends of the connecting middle plate 204 correspond to the ear plates 203 of the adjacent plate bodies 1 respectively. At this time, a special pin 205 is passed through the light hole at one end of the connecting middle plate 204 and the corresponding light hole of the ear plate 203. The diameter of the pin 205 is smaller than the inner diameter of the light holes of the middle plate and the ear plate. The grouting material is filled between the inner diameter of the light holes of the middle plate and the ear plate and the pin to form a grouting tenon, thereby forming a tight fitting relationship. During the insertion of the pin 205, no professional installation tools are required. After completing the connection at one end, in the same way, the other end of the connecting middle plate 204 is fixed to the ear plate 203 of the adjacent plate body 1 through the pin 205. Through this pin 205 connection method, the connecting middle plate 204 can effectively connect the ear plates 203 of the adjacent plate bodies 1 tightly together to form a stable force transmission structure In this embodiment, the shape of the connection port 102 is trapezoidal. The shape of the connection port 102 gradually becomes narrower from the side away from the plate body 1 towards the side closer to the plate body 1. The connection port 102 is opened on any side surface of the plate body 1 along the thickness direction. The gradually narrowing shape of the connection port 102 enables a tight nesting relationship to be formed at the connection part of the adjacent plate bodies 1 when the plate bodies 1 are spliced. This nesting is similar to the mortise and tenon structure. When an external force acts on the road surface, the adjacent plate bodies 1 can restrict each other and cooperate in bearing force, greatly enhancing the stability of the connection of the plate bodies 1 and improving the overall anti-deformation ability of the road surface

[0022] In this embodiment, as Figure 3 shown, the connection ports 102 of the adjacent plate bodies 1 can enclose a grouting hole 4. One side of the grouting hole 4 away from the plate body 1 is sealed with a rubber and plastic material gasket 3 with a grouting hole 4. Through the setting of the grouting hole 4. By enclosing the connection ports 102 into a grouting hole 4, during the road surface construction process, high-strength grouting materials can be injected into it. Under the action of pressure, these grouting materials can fully fill the tiny pores that may originally exist between the plate bodies 1 and bond the adjacent plate bodies 1 tightly together to form an almost pore-free integral structure. From a microscopic perspective, the grouting materials are like fine "fillers", filling every gap at the connection part of the plate bodies 1, enabling the stress to be evenly transmitted between the plate bodies 1 when the road surface bears various loads, avoiding the stress concentration phenomenon caused by pores, and greatly improving the durability and service life of the road surface

[0023] As Figure 3As shown in the figure, sealing pressure control devices are arranged along the direction of the plate joints of the plate body 1 on both sides of the grouting hole 4. The sealing pressure control device consists of a channel steel 5 and a T-shaped tension connector with a screw 6. The channel steel 5 and the T-shaped tension connector with a screw 6 are bolted together. The T-shaped tension connector with a screw can limit the position of the plate body 1 and assist in assembling the plate body 1 to the designed position. On both sides of the grouting hole 4, sealing pressure control devices are arranged along the direction of the plate joints of the plate body 1. This device consists of a channel steel 5 and a T-shaped tension connector with a screw. The channel steel 5 serves as the basic component for support and fixation, with high strength and stability. Its cross-sectional shape and size are precisely designed to withstand the pressure generated during grouting and the extrusion force on the plate body 1. The T-shaped tension connector with a screw 6 is tightly connected to the channel steel 5 through bolts, forming a complete pressure control and position-limiting system. On the one hand, it can accurately limit the position of the plate body 1. During the assembly process of the plate body 1, construction workers can ensure that the plate body 1 is accurately positioned at the designed position by adjusting the position of the T-shaped tension connector with a screw and the tightness of the screw, effectively controlling the width of the plate joints between the plate bodies 1 and ensuring the accuracy of the pavement splicing. On the other hand, during the grouting process, the sealing pressure control device can apply appropriate pressure to the periphery of the grouting hole 4 according to the design requirements. When the grouting pressure gradually increases, the channel steel 5 and the T-shaped tension connector with a screw 6 work together. By adjusting the tightening degree of the bolts, the extrusion force on the sealing gasket 3 and the plate body 1 around the grouting hole 4 is changed, thereby effectively controlling the grouting pressure. This precise pressure control can not only ensure that the grout fully fills the gaps at the connection parts of the plate body 1, enhancing the connection strength between the plate bodies 1, but also avoid problems such as deformation of the plate body 1 or damage to the sealing gasket 3 caused by excessive grouting pressure. The channel steel 5, the base layer, and the grouting hole 4 together form a continuous grouting channel between the plate bodies 1.

[0024] In this embodiment, the number of implicit multi-functional connections arranged on each side of the plate body 1 is not less than 1. Setting multiple connection points can evenly disperse these loads and avoid the situation of excessive single-point stress. Taking the example of an airplane landing, the huge vertical pressure and horizontal impact force will be transmitted to the connection parts through the plate body 1. At this time, the connection points on each side work together to disperse the loads to the adjacent plate bodies 1, enabling the entire pavement structure to stably bear these external forces and greatly improving the load-bearing capacity and anti-deformation ability of the pavement. After one end of the connector in the body is treated with sliding, it can also serve as the expansion joint load transfer bar 7. The existence of the expansion joint is to provide space for the expansion and contraction of the pavement and prevent the pavement from cracking due to temperature stress. The connector 2 treated with sliding can freely slide in the expansion joint when the temperature changes, effectively releasing the temperature stress. At the same time, as the expansion joint load transfer bar 7, when the pavement is stressed, it can transfer the load of one side plate body 1 to the other side, ensuring the coordinated work of the plate bodies 1 on both sides of the expansion joint and maintaining the integrity of the pavement.

[0025] In this embodiment, a concave rabbet 101 is provided on the side wall of the plate body 1 perpendicular to the ground. The shape of the concave rabbet 101 gradually narrows from the side away from the plate body 1 towards the side close to the plate body 1. The concave rabbets 101 between two plate bodies 1 can form a closed space for grouting, and the grout can fill the inside of the concave rabbet 101 and the tiny space of the splicing gap of the plate body 1. After the grout solidifies, it forms a strong "concrete bond" between adjacent plate bodies 1, greatly enhancing the connection strength between the plate bodies 1. At the connecting part of the concave rabbet 101 after grouting reinforcement, these loads can be effectively evenly distributed to adjacent plate bodies 1, avoiding damage or loosening of the connection of the plate body 1 caused by local stress concentration, thereby significantly improving the overall bearing capacity and structural stability of the pavement. By grouting into the concave rabbet 101, a dense waterproof barrier can be formed after the grout solidifies, effectively preventing rainwater from seeping into the inside of the plate body 1 and the connecting part. This not only prevents problems such as corrosion of the steel bars 201 (if the plate body 1 is a reinforced concrete structure) and material aging caused by water erosion of the plate body 1, but also avoids softening and settlement of the foundation caused by water accumulation under the plate body 1, thereby greatly extending the service life of the pavement and reducing the long-term maintenance cost.

[0026] The shape of the concave rabbet 101 gradually narrows from the side away from the plate body 1 towards the side close to the plate body 1, like a clever "lock", providing a precise positioning and stable combination method for the connection between adjacent plate bodies 1. When adjacent plate bodies 1 are spliced, the gradually narrowing shape of the concave rabbet 101 enables the plate bodies 1 to achieve a tight fit. Just like two pieces of a jigsaw puzzle, through this unique shape, they can accurately match each other to form a continuous and well-integrated structure. During actual use, the pavement will withstand various complex external forces, such as the huge impact force during aircraft takeoff and landing, and the frictional force during vehicle driving. The narrowing shape of the concave rabbet 101 enables adjacent plate bodies 1 to better constrain and support each other when subjected to external forces. Due to its shape characteristics, during the stress process, the fitting part between the plate bodies 1 will produce a mutual extrusion effect, thereby effectively dispersing and transmitting the load and avoiding the problem of local stress concentration. This not only improves the overall bearing capacity of the pavement but also reduces the risk of damage to the plate body 1 and loosening of the connection caused by stress concentration.

[0027] In this embodiment, such as Figures 5-6As shown, the shape of the plate body 1 includes a rectangle, a hexagon or other special-shaped plates, such as chamfered plates, arc-end plates, etc., as long as the shape is convenient for cooperating with the adjacent plate body 1. From a construction perspective, the rectangular plate body 1 is easy to process and manufacture, and the production equipment can efficiently produce in batches according to standard dimensions, greatly improving the production efficiency. Moreover, the rectangular corners are distinct, and during the splicing and assembly process at the construction site, it can be clearly positioned and installed, with relatively simple and convenient operation, which can effectively shorten the construction period. In terms of mechanical properties, the stress distribution of the rectangular plate body 1 is relatively regular. When bearing vertical loads such as aircraft takeoff and landing, the four corners and four sides of the rectangular plate body 1 can evenly disperse the load, making the entire plate body 1 structure stable. For example, on the airport runway, the rectangular plate body 1 can form a closely connected pavement structure through reasonable arrangement and combination, effectively resisting the huge impact force and friction generated during aircraft takeoff and landing. At the same time, the shape of the rectangular plate body 1 is conducive to neat closing treatment at the edge of the pavement, facilitating connection with surrounding facilities, such as more smooth combination with shoulders, drainage systems, etc., enhancing the overall functionality and aesthetics of the pavement. The hexagon has six sides. Compared with the rectangle, it can achieve connections in more directions during splicing. In practical applications, the hexagonal plate bodies 1 can be nested with each other to form a honeycomb-like structure. This structure has excellent stability and integrity and can better adapt to complex stress environments.

[0028] In this embodiment, the plate body 1 is a concrete plate body 1, and the material of the concrete plate body 1 is at least one of ordinary concrete, lightweight concrete, prestressed concrete, and / or fiber-reinforced concrete. In actual projects, according to different engineering requirements and site conditions, various factors are often comprehensively considered to select the material of the concrete plate body 1. Sometimes a single material is used alone, and sometimes multiple materials are combined to achieve the best performance and economic benefits. For example, in some large airport projects, the main runway may use prestressed concrete plate bodies 1 to meet the high-strength load requirements, while some areas of the apron can use lightweight concrete plate bodies 1 to reduce costs and relieve the ground bearing pressure.

[0029] In another embodiment, as Figures 7-8 shown, this embodiment designs a construction method for an assembled airfield implicit multi-functional connection concrete pavement, which specifically includes the following steps: S101: The factory or site completes the large-scale prefabrication of the slab 1 through assembled formwork. A concave rabbet 101 is reserved on the side of the slab 1. The mold should have high precision to ensure that the size of the concave rabbet 101 is accurate and the shape is regular. During the reservation process, the concrete pouring process is strictly controlled to ensure that the edge of the concave rabbet 101 is smooth and without defects, providing good conditions for the subsequent splicing of the slab 1. The reinforcing bars and end plates 202 are embedded in the slab 1. First, the reinforcing bars and end plates 202 are connected by threads. Generally, steel bars are selected as the reinforcing bars. Then, the positions of the reinforcing bars and end plates 202 are determined to be in the middle of the connection port 102 of the slab and fixed to prevent displacement during the concrete pouring process.

[0030] S102: Arrange the T-shaped tie connectors 6 with screws according to the design. The T-shaped structure design enables it to form an effective tensile force between the slabs 1, and the screw part provides convenience for subsequent adjustments. During the installation process, the construction personnel accurately fix one end of the connector on the reserved holes or embedded parts of the already laid slab 1, and ensure the connection is firm by tightening the nuts. At the same time, carefully adjust the angle and direction of the connector to make it accurately correspond to the connection points of the adjacent slabs 1. Lift and lay the slab 1, and select a crane with the corresponding lifting capacity, such as a truck crane, crawler crane, etc. for lifting. During the leveling process, use high-precision measuring instruments, such as a level, total station, etc., to monitor the levelness of the slab 1 in real time. By adjusting the screws on the T-shaped tie connectors with screws, utilize its lifting function to finely adjust the height of the slab 1. The construction personnel gradually adjust the tightening degree of the screws according to the data feedback by the measuring instruments to make the slab 1 reach the required flatness in the horizontal direction.

[0031] S103: Connect the adjacent middle plates and ear plates 203 through the pin shafts 205 to form a hidden connector. Compared with the traditional exposed connection method, the hidden connector makes the surface of the pavement more flat and concise. When observing the pavement from the ground or in the air, no prominent connection components can be seen, and the pavement presents a continuous and smooth appearance, which can better integrate with the surrounding environment and improve the overall visual effect. The hidden design can effectively prevent the connector from being directly eroded by external environmental factors. For example, in the use scenario of the airport pavement, sundries such as sand, gravel, and dust raised when the plane takes off and lands will not directly impact the connector, reducing the risk of damage to the connector due to wear and corrosion. At the same time, liquids such as rainwater are also difficult to accumulate around the connector, reducing the possibility of the connector rusting, thereby extending the service life of the connector and indirectly improving the overall durability of the pavement.

[0032] S104: Arrange the rubber and plastic material gasket 3 and the sealing pressure control device according to the design bays. The gasket 3 is usually made of rubber and plastic material with high elasticity, aging resistance, wear resistance and excellent waterproof performance. This kind of material can maintain good sealing performance during long-term use even under the influence of factors such as pavement deformation and temperature change. The sealing pressure control device consists of components such as channel steel 5 and T-shaped tie rod connecting parts 6 with screws. Its function is to apply appropriate pressure to the gasket 3 during the grouting process to ensure that the grouting pressure can be effectively transmitted to the connection part of the slab 1, and at the same time prevent the leakage of the grout. During the subsequent grouting process, by adjusting the tightness of the screw, the pressure on the gasket 3 can be flexibly controlled, so as to achieve precise control of the grouting pressure, ensure the grouting effect, make the connection between the slabs 1 more firm, and improve the overall stability and bearing capacity of the pavement.

[0033] S105: Densely connect the grouting port with the grouting machine, and carry out bay grouting according to the designed grouting pressure, with appropriate fullness of the joint filling. During the grouting process, the construction personnel should closely monitor the pressure display instrument on the grouting machine, and through adjusting the pressure control device of the grouting machine, such as the pressure regulating valve, frequency conversion motor, etc., keep the grouting pressure within the designed range all the time. When carrying out bay grouting, it should be carried out in sequence according to the pre-divided areas. Before grouting each bay, first start the grouting machine, slowly raise the grouting pressure to the designed value, and then start grouting. During the grouting process, continuously observe the change of the grouting pressure. If the pressure suddenly rises or drops, it may mean that the grouting pipeline is blocked or there is an abnormality inside the slab 1. At this time, stop grouting immediately, check the reasons and solve the problems before continuing grouting. At the same time, pay attention to controlling the grouting speed, which should not be too fast or too slow. If the grouting speed is too fast, it may cause the grout to not fully fill the gaps of the slab 1, affecting the fullness of the joint filling; if the grouting speed is too slow, it will prolong the construction time and reduce the construction efficiency. When the grout evenly flows out from the adjacent grouting port or the gap on the surface of the slab 1, it means that the joint filling in this area is basically full. However, in order to ensure the joint filling quality, it is necessary to continue grouting for a period of time so that the grout can fully penetrate into every corner of the gap of the slab 1 under the action of pressure. After the grouting is completed, do not immediately stop the grouting machine, but slowly reduce the grouting pressure, so that the grout can further fill the gap during the process of gradually decreasing pressure, and avoid the backflow of the grout due to the sudden reduction of pressure.

[0034] S106: Repeat S104 and S105 to complete the bay grouting; S105: Complete the treatment of the pavement surface, and use a grinding machine, cleaning equipment, etc. to treat the pavement surface. Remove the stains, protrusions, etc. generated on the surface of the slab 1 during the construction process to make the pavement surface flat and smooth. For the joint filling of the concave rabbet 101 between the slabs 1, a joint filling material matching the concrete of the slab 1 should be selected to fill the concave rabbet 101 between the slabs 1.

[0035] In this embodiment, a connection port 102 is provided on any side surface of the plate body in the thickness direction. This design provides a basic condition for the splicing of plate bodies. The opening direction and position of the connection port 102 are carefully planned. Being arranged in the thickness direction enables the connection port 102 to penetrate the side surface of the plate body, so that when the plate bodies are spliced, the connection parts of adjacent plate bodies can achieve all-round docking. From a mechanical perspective, this design of the through-type connection port 102 can effectively transfer loads. Whether it is the frictional force in the horizontal direction or the pressure in the vertical direction, they can be evenly distributed between the plate bodies through the connection port 102.

[0036] The above are only the preferred embodiments of the present invention, and do not impose any formal restrictions on the structure of the present invention. The layout type and the quantity used of the present invention are not limited to this example either, and can be optimized according to the actual engineering situation. Any modification, equivalent change and decoration made to the above embodiments based on the technical principle of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An assembled airfield implicit multi-functional connected concrete pavement, characterized in that: It includes a plate body (1) and a connecting member (2). A connecting port (102) is formed in the side surface of the plate body (1) along the thickness direction. The connecting member (2) includes a reinforcing rib, an end plate (202), an ear plate (203), and a connecting middle plate (204). The reinforcing rib and the end plate (202) are embedded in the middle of the connecting port (102) of the plate body (1). One side of the reinforcing rib away from the plate body (1) is connected to the end plate (202), and one side of the end plate (202) away from the reinforcing rib is connected to the ear plate (203). The ear plates (203) of adjacent plate bodies (1) are connected by the connecting middle plate (204).

2. The prefabricated apron implicit multi-functional connected concrete pavement and construction method according to claim 1, characterized in that: The ear plate (203) is provided with a light hole. Both ends of the connecting middle plate (204) are provided with light holes. The two ends of the connecting middle plate (204) are respectively connected to the ear plates (203) of adjacent plate bodies (1) and fixed by a pin shaft (205); the light hole diameters of the middle plate (204) and the ear plate (203) are larger than the diameter of the pin shaft (205); the reinforcing rib and the end plate (202) are connected by a threaded connection.

3. The prefabricated apron implicit multi-functional connected concrete pavement according to claim 1, characterized in that: The connecting ports (102) of adjacent plate bodies (1) enclose a grouting hole (4). A sealing gasket (3) is arranged on one side of the grouting hole (4) away from the plate body (1). The sealing gasket (3) is provided with a through hole, and sealing pressure control devices are arranged along the plate joint direction on both sides of the grouting hole (4).

4. The prefabricated apron with an implicit multi-functional connection concrete pavement according to claim 3, characterized in that: The sealing pressure control device is composed of a channel steel (5) and a T-shaped tie rod connecting member (6) with a screw. The channel steel (5) and the T-shaped tie rod connecting member (6) with a screw are bolted. The T-shaped tie rod connecting member (6) with an inverted T shape can limit the plate body (1) and assist in assembling the plate body (1) to the designed position; the channel steel (5), the base layer and the grouting hole (4) together form a continuous grouting channel between the plate bodies (1).

5. The prefabricated apron implicit multi-functional connected concrete pavement according to claim 1, characterized in that: The shape of the connecting port (102) is trapezoidal. The shape of the connecting port (102) gradually becomes narrower from the side away from the plate body (1) to the side close to the plate body (1). The connecting port (102) is formed in any side surface of the plate body (1) along the thickness direction.

6. The prefabricated apron implicit multi-functional connected concrete pavement according to claim 1, wherein: A concave tongue-and-groove (101) is arranged on the side wall of the plate body (1) perpendicular to the ground. The shape of the concave tongue-and-groove (101) gradually becomes narrower from the side away from the plate body (1) to the side close to the plate body (1).

7. An assembled airfield implicit multi-functional connected concrete pavement according to claim 1, characterized in that: The shape of the plate body (1) includes a rectangle, a hexagon and / or a special-shaped plate.

8. The prefabricated airfield implicit multi-functional connected concrete pavement according to claim 7, characterized in that: The plate body (1) is a concrete plate body, and the material of the concrete plate body is at least one of ordinary concrete, lightweight concrete, prestressed concrete and / or fiber-reinforced concrete.

9. A construction method for an assembled airfield implicit multi-functional connected concrete pavement according to any one of claims 1-8, characterized in that, Specifically, it includes the following steps: S101: Prefabricate the plate body (1) in a factory or on-site, reserve a concave tongue-and-groove (101) on the side surface of the plate body (1), and embed the reinforcing rib and the end plate into the plate body; S102: Arrange the T-shaped tie rod connecting member (6) with a screw according to the design, hoist and lay the plate body (1), and level the plate body (1); S103: Connect the connecting middle plate (204) and the ear plate (203) through a pin shaft to form a concealed connecting member (2); S104: Arrange the rubber and plastic material gaskets (3) and the seal pressure control device according to the designed bin layout; S105: Densely dock the grouting port (4) with the grouting machine, and conduct bin-by-bin grouting according to the designed grouting pressure, with an appropriate fullness of the grouted joints; S106: Repeat S104 and S105 to complete the bin-by-bin grouting; S105: Complete the treatment of the pavement surface and the repair of the concave tongue-and-groove (101) between the slabs.

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