Fabricated pavement slab for airport and manufacturing and mounting method of fabricated pavement slab

Abstract

The invention relates to the technical field of airport pavement slab construction, and particularly discloses an airport assembly type pavement slab and a manufacturing and installing method thereof.The airport assembly type pavement slab comprises a pavement slab body, a bearing steel frame arranged in the pavement slab body, a prestressed reinforcing mesh and a pre-buried component which are arranged on the bearing steel frame, and fixing screws used for fixing the adjacent pavement slab bodies; the pavement slab comprises a middle panel, two rabbet upper edges and two rabbet lower edges, the two rabbet upper edges and the two rabbet lower edges are integrally formed with the middle panel, the whole middle panel is of a rectangular structure, and the two rabbet upper edges are arranged on the outer sides of the two adjacent edge portions of the middle panel in a full-length mode respectively. The lower edges of the two rabbets are arranged on the outer sides of the other two adjacent edges of the middle face plate in a full-length mode, so that the adjacent road face plates are fixedly connected in a staggered mode, good load transmission performance is achieved between the adjacent road face plates, and the fracture risk caused by the fact that a single road face plate bears too large stress such as airplane wheel loads is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of airport pavement panel construction, and in particular to an airport assembled pavement panel and a manufacturing and installation method thereof. Background Art

[0002] Traditional cast-in-place concrete airport pavement can effectively transfer vertical loads, horizontal loads and expansion and contraction stresses between panels. However, the current airport runway is directly cast on site, which not only takes a long time to construct, but also easily affects the on-site environment during paving, especially it cannot be constructed without stopping flights at existing airports. Prefabricated airport pavement replaces cast-in-place airport pavement. The pavement panels are prefabricated in factories. Compared with cast-in-place pavement on site, the quality is better, the pavement construction period is shortened, the construction cost is low, and the construction is carried out without stopping flights, so that the economic benefits of the airport can be realized as soon as possible. However, when the aircraft takes off and lands, a single prefabricated panel will be subjected to stresses such as wheel loads, and the load that a single panel can bear is limited. In order to reduce the risk of single prefabricated panels breaking, the load borne by a single panel must be transferred to adjacent panels in a reliable manner. The good load transfer between prefabricated pavement panels is the key to restricting the application of prefabricated pavement panels. Summary of the invention

[0003] The purpose of the present invention is to provide an airport assembled road panel and a method for manufacturing and installing the same, in order to solve the technical problems mentioned in the above background technology.

[0004] To achieve the above object, the present invention adopts the following technical solution: An airport assembled road panel comprises a road panel, a load-bearing steel frame arranged in the road panel, a prestressed steel mesh and embedded components arranged on the load-bearing steel frame, and a fixing screw for fixing adjacent road panels, wherein the road panel comprises a middle panel, and two tongue-and-groove upper edges and two tongue-and-groove lower edges integrally formed with the middle panel, wherein the middle panel is in a rectangular structure as a whole, the two tongue-and-groove upper edges are respectively arranged on the outer sides of two adjacent side portions of the middle panel, the two tongue-and-groove lower edges are respectively arranged on the outer sides of the other two adjacent side portions of the middle panel, and the thickness of the tongue-and-groove upper edge and the tongue-and-groove lower edge are both 1 / 2 of the thickness of the road panel. The width of the upper edge of the tongue and the lower edge of the tongue are the same, the top surface of the upper edge of the tongue is flush with the top surface of the middle panel, and the bottom surface of the lower edge of the tongue is flush with the bottom surface of the middle panel. The load-bearing steel frame is a rectangular frame structure as a whole. The load-bearing steel frame includes an upper rectangular frame, a lower rectangular frame and a connecting rod. The upper rectangular frame and the lower rectangular frame each include four square steels connected in sequence. The upper rectangular frame and the lower rectangular frame have the same specifications and are overlapped with each other at intervals. The connecting rod is connected between the upper rectangular frame and the lower rectangular frame. The prestressed steel mesh includes an upper steel mesh and a lower steel mesh laid horizontally. The upper steel mesh and the lower steel mesh The reinforcement meshes all include transverse steel bars and longitudinal steel bars arranged perpendicular to each other in a grid shape. The transverse steel bar spacing of the upper steel bar mesh is the same as the transverse steel bar spacing of the lower steel bar mesh, and the longitudinal steel bar spacing of the upper steel bar mesh is the same as the longitudinal steel bar spacing of the lower steel bar mesh. The upper steel bar mesh is laid on the top surface of the upper rectangular frame and welded and fixed to the upper rectangular frame. The lower steel bar mesh is laid on the bottom surface of the lower rectangular frame and welded and fixed to the lower rectangular frame. One end of the transverse steel bars of the upper steel bar mesh and one end of the longitudinal steel bars of the upper steel bar mesh are respectively located within the upper edges of the two tongues and grooves, and one end of the transverse steel bars of the lower steel bar mesh and the longitudinal steel bars of the lower steel bar mesh are respectively located within the upper edges of the two tongues and grooves. One end of the reinforcement is respectively located in the lower edges of the two tongues and grooves; the embedded components include a plurality of upper-layer screw barrels respectively embedded in the upper edges of the two tongues and grooves, a plurality of lower-layer screw barrels respectively embedded in the lower edges of the two tongues and grooves, and four adjusting rods embedded in the middle panel, the upper-layer screw barrels, the lower-layer screw barrels and the adjusting rods are all vertically arranged, a plurality of upper-layer screw barrels are dispersedly fixed on the transverse steel bar ends of the upper steel mesh and the longitudinal steel bar ends of the upper steel mesh, a plurality of lower-layer screw barrels are dispersedly fixed on the transverse steel bar ends of the lower steel mesh and the longitudinal steel bar ends of the lower steel mesh, and the upper-layer screw barrels and the lower-layer screw barrels have internal threads of the same specifications.

[0005] Furthermore, a rectangular groove is provided on the bottom surface of the middle panel, and the bottom of the adjusting rod is connected with the rectangular groove. The adjusting rod includes an outer tube, an inner rod and a top cover. The outer tube and the inner rod are both hollow tubular structures. The belly of the outer tube is welded and fixed to the load-bearing steel frame. The lengths of the outer tube and the outer rod are both less than the thickness of the middle panel. An internal thread is provided inside the outer tube, and an external thread is provided on the outer periphery of the inner rod. The outer tube is sleeved on the inner rod and is threadably connected to the inner rod. A support platform is provided at the bottom of the inner rod, and the support platform is arranged in the rectangular groove. The support platform is a hollow truncated cone structure. The inner rod is connected with the support platform, and the bottom surface of the support platform is flush with the bottom surface of the middle panel. Multiple grouting holes are provided on the side walls of the inner rod and the support platform.

[0006] Furthermore, the plane area of ​​the rectangular groove is larger than two-thirds of the bottom area of ​​the middle panel, and the depth of the rectangular groove is 10-30 mm.

[0007] Furthermore, the length of the upper screw barrel is less than the thickness of the upper edge of the tongue and groove, the length of the lower screw barrel is equal to the thickness of the lower edge of the tongue and groove, and a cap is provided on the top of the upper screw barrel, the cap is threadedly connected to the top of the upper screw barrel, and the top of the cap is flush with the top surface of the upper edge of the tongue and groove.

[0008] Furthermore, the specifications of the fixing screw rod are compatible with the specifications of the internal threads of the upper screw barrel and the lower screw barrel, and the length of the fixing screw rod is smaller than the thickness of the road panel.

[0009] Furthermore, the top cover is threadedly connected to the top end of the outer tube, and the top end of the top cover is flush with the top surface of the road panel.

[0010] Furthermore, the bottom of the rectangular groove is provided with anti-slip grooves.

[0011] A method for manufacturing and installing an airport prefabricated road panel comprises the following steps: Step 1: Design the specifications of the pavement panel, the specifications and positioning of the load-bearing steel frame and prestressed steel mesh, and the specifications and embedded positioning of each embedded component according to the airport pavement paving plan and requirements; Step 2: in the production workshop, a load-bearing steel frame is manufactured according to the design requirements, square steel is cut into suitable lengths, and four square steels are welded in sequence to form an upper rectangular frame or a lower rectangular frame. The upper rectangular frame and the lower rectangular frame are connected by connecting rods to form a single load-bearing steel frame, and then a prestressed steel mesh is manufactured, and the upper steel mesh is welded and fixed to the top surface of the upper rectangular frame, and the lower steel mesh is welded and fixed to the bottom surface of the lower rectangular frame; Step 3, manufacturing embedded components according to the design specifications of embedded components, fixing the embedded components to the bearing steel frame and the prestressed steel mesh according to the embedded positioning of each embedded component, multiple upper screw barrels are dispersedly welded and fixed to one end of the transverse steel bars of the upper steel mesh and one end of the longitudinal steel bars of the upper steel mesh, multiple lower screw barrels are dispersedly welded and fixed to one end of the transverse steel bars of the lower steel mesh and one end of the longitudinal steel bars of the lower steel mesh, the cap is threadedly connected to the top end of the upper screw barrel, the adjusting rod is welded and fixed to the bearing steel frame, and the top cover is threadedly connected to the top end of the outer tube; Step 4, after placing the load-bearing steel frame at a predetermined position in the formwork, gradually carry out the pouring, vibrating, plastering, roughening, curing, and grooving processes; Step 5, transport the pavement panels to the predetermined position for laying and installation, connect adjacent pavement panels through the tongue-and-groove upper edge and the tongue-and-groove lower edge, the upper screw barrels and the lower screw barrels of adjacent pavement panels correspond to each other, adjust the length of the adjusting rod to control the horizontality of the pavement panels, remove the cap, and then thread the fixing screw rod with the corresponding upper screw barrel and lower screw barrel of the adjacent pavement panels to connect and fix the adjacent pavement panels, pour concrete into the rectangular groove through the inner rod, cover the top cover, and complete the installation construction.

[0012] Compared with the prior art, the present invention has the following characteristics and beneficial effects: The present invention provides two integrally formed tongue-and-groove upper edges and two tongue-and-groove lower edges around the central panel, and provides a bearing steel frame, a prestressed steel mesh and an embedded component in the road panel. While increasing the internal structural strength of the road panel, the adjacent road panels are connected by tongue-and-groove and fixed by bolts. The adjacent road panels are staggered and fixed, so that the adjacent road panels have good load transferability, and the risk of the panel surface breaking caused by excessive stress such as the wheel load on a single road panel is reduced. In addition, there is no vertical through seam between the plate seams of the adjacent road panels and the road surface foundation, so the risk of hollowing of the road surface foundation caused by rainwater leakage is reduced. By providing a rectangular groove and an adjusting rod member connected with the rectangular groove at the bottom of the road panel, while leveling the laid road panel, it is convenient to inject concrete into the rectangular groove through the inner rod. By simple, small-scale and rapid pouring, the friction coefficient between the road panel and the road surface foundation below is greatly increased, and the force stability of the road panel is enhanced. The invention has the characteristics of safety and applicability, has good promotion and practical value, and will produce good economic benefits after wide promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 2 It is a schematic diagram of the internal planar structure of the road panel of the present invention.

[0014] Figure numerals: 1. middle panel; 2. upper edge of tongue and groove; 3. lower edge of tongue and groove; 4. upper rectangular frame; 5. lower rectangular frame; 6. connecting rod; 7. upper steel mesh; 8. lower steel mesh; 9. upper screw barrel; 10. lower screw barrel; 11. adjusting rod; 12. rectangular groove; 13. support platform; 14. grouting hole. DETAILED DESCRIPTION

[0015] In order to make the technical means, innovative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below.

[0016] The embodiments described herein are specific embodiments of the present invention, which are used to illustrate the concept of the present invention, are illustrative and exemplary, and should not be construed as limiting the embodiments of the present invention and the scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the claims and the contents disclosed in the specification of this application, including technical solutions that adopt any obvious replacement and modification of the embodiments described herein.

[0017] The present invention discloses an airport assembled road panel, such as Figure 1 and Figure 2As shown, it includes a road panel, a load-bearing steel frame arranged in the road panel, and a prestressed steel mesh and embedded components arranged on the load-bearing steel frame. The road panel is an ultra-high performance concrete composite surface layer. The road panel includes a middle panel 1, and two tongue-and-groove upper edges 2 and two tongue-and-groove lower edges 3 integrally formed with the middle panel 1. The middle panel 1 is a rectangular structure as a whole. The two tongue-and-groove upper edges 2 are respectively arranged on the outer sides of two adjacent side portions of the middle panel 1 through the length, and the two tongue-and-groove lower edges 3 are respectively arranged on the outer sides of the other two adjacent side portions of the middle panel 1 through the length. The thickness of the edge 2 and the lower edge 3 of the tongue and groove are both half of the thickness of the road panel, the width of the upper edge 2 of the tongue and groove and the lower edge 3 of the tongue and groove are the same, the top surface of the upper edge 2 of the tongue and groove is flush with the top surface of the middle panel 1, and the bottom surface of the lower edge 3 of the tongue and groove is flush with the bottom surface of the middle panel 1. A rectangular groove 12 is provided on the bottom surface of the middle panel 1. The plane area of ​​the notch of the rectangular groove 12 is greater than two-thirds of the bottom area of ​​the middle panel 1. The depth of the rectangular groove 12 is 10~30mm, and the bottom of the rectangular groove 12 is provided with anti-slip grooves. The bearing steel frame is a rectangular frame structure as a whole, and the bearing steel frame includes an upper rectangular frame 4, a lower rectangular frame 5 and a connecting rod 6, the upper rectangular frame 4 and the lower rectangular frame 5 each include four square steels connected in sequence, the upper rectangular frame 4 and the lower rectangular frame 5 have the same specifications and are overlapped with each other at intervals, the connecting rod 6 is connected between the upper rectangular frame 4 and the lower rectangular frame 5, the prestressed steel mesh includes a horizontally laid upper steel mesh 7 and a lower steel mesh 8, the upper steel mesh 7 and the lower steel mesh 8 both include transverse steel bars and longitudinal steel bars arranged perpendicular to each other in a grid shape, the transverse steel bar spacing of the upper steel mesh 7 is the same as the transverse steel bar spacing of the lower steel mesh 8 The spacing is the same, the spacing of the longitudinal steel bars of the upper steel mesh 7 is the same as the spacing of the longitudinal steel bars of the lower steel mesh 8, the upper steel mesh 7 is laid on the top surface of the upper rectangular frame 4 and is welded and fixed to the upper rectangular frame 4, the lower steel mesh 8 is laid on the bottom surface of the lower rectangular frame 5 and is welded and fixed to the lower rectangular frame 5, one end of the transverse steel bars of the upper steel mesh 7 and one end of the longitudinal steel bars of the upper steel mesh 7 are respectively located in the two tongue-and-groove upper edges 2, and one end of the transverse steel bars of the lower steel mesh 8 and one end of the longitudinal steel bars of the lower steel mesh 8 are respectively located in the two tongue-and-groove lower edges 3;The embedded components include a plurality of upper layer screw barrels 9 respectively embedded in the two tongue upper edges 2, a plurality of lower layer screw barrels 10 respectively embedded in the two tongue lower edges 3, and four adjusting rods 11 embedded in the middle panel 1, the upper layer screw barrels 9, the lower layer screw barrels 10 and the adjusting rods 11 are all vertically arranged, the upper layer screw barrels 9 and the lower layer screw barrels 10 are used in conjunction with each other, the plurality of upper layer screw barrels 9 are dispersedly fixed on the transverse steel bar ends of the upper steel bar mesh 7 and the longitudinal steel bar ends of the upper steel bar mesh 7, the plurality of lower layer screw barrels 10 are dispersedly fixed on the transverse steel bar ends of the lower steel bar mesh 8 and the longitudinal steel bar ends of the lower steel bar mesh 8, the upper layer screw barrels 9 and the lower layer screw barrels 10 are dispersedly fixed on the transverse steel bar ends of the lower steel bar mesh 8 and the longitudinal steel bar ends of the lower steel bar mesh 8 The upper and lower layers of the screw barrel 10 all have internal threads of the same specification, the upper and lower layers of the screw barrel 9 and the lower layer of the screw barrel 10 have the same inner diameter specifications, the upper and lower layers of the screw barrel 9 are embedded in the upper edge 2 of the tongue and groove, and the lower and lower layers of the screw barrel 10 are embedded in the lower edge 3 of the tongue and groove. The length of the upper and lower layers of the screw barrel 9 is less than the thickness of the upper edge 2 of the tongue and groove, and the length of the lower and lower layers of the screw barrel 10 is equal to the thickness of the lower edge 3 of the tongue and groove. A cap is provided on the top of the upper and lower layers of the screw barrel 9, and the cap is threadedly connected to the top of the upper and lower layers of the screw barrel 9. The top of the cap is flush with the top surface of the upper edge 2 of the tongue and groove. The present invention also includes a fixing screw used to fix adjacent road panels and used in conjunction with the upper and lower layers of the screw barrel 9 and the lower layer of the screw barrel 10. The length of the fixing screw is less than Regarding the thickness of the road panel, the bottom of the adjusting rod 11 is connected with the rectangular groove 12. The adjusting rod 11 includes an outer tube, an inner rod and a top cover. The outer tube and the inner rod are both hollow tubular structures. The belly of the outer tube is welded and fixed to the bearing steel frame. The lengths of the outer tube and the outer rod are both less than the thickness of the middle panel 1. The outer tube is provided with an internal thread, and the outer circumference of the inner rod is provided with an external thread. The outer tube is sleeved on the inner rod and is threadedly connected with the inner rod. A support platform 13 is provided at the bottom of the inner rod. The support platform 13 is arranged in the rectangular groove 12. The support platform 13 is a hollow truncated cone structure. The inner rod is connected with the support platform 13. The bottom surface of the support platform 13 is flush with the bottom surface of the middle panel 1, so as to adjust the road panel after laying. Leveling, the inner rod and the side wall of the support platform 13 are both provided with multiple grouting holes 14, which are used to guide the concrete injected into the inner rod into the rectangular groove 12. Through simple, small and fast pouring, the friction coefficient between the road panel and the road surface foundation below is greatly increased, thereby enhancing the force stability of the road panel. The top cover is threadedly connected to the top of the outer tube, and the top of the top cover is flush with the top surface of the road panel. The top of the inner rod is provided with a cross groove, so that the inner rod can be rotated conveniently to adjust the length of the rod 11. It also includes a supporting lifting ring, which can be threadedly connected to the top of the outer tube. When the road panel needs to be transported, the top cover is replaced with the lifting ring, thereby increasing the transport force point on the road panel. ;

[0018] A method for manufacturing and installing an airport prefabricated road panel comprises the following steps: Step 1: Design the specifications of the pavement panel, the specifications and positioning of the load-bearing steel frame and prestressed steel mesh, and the specifications and embedded positioning of each embedded component according to the airport pavement paving plan and requirements; Step 2, in the production workshop, a load-bearing steel frame is manufactured according to the design requirements, square steel is cut into suitable lengths, and four square steels are welded in sequence to form an upper rectangular frame 4 or a lower rectangular frame 5. The upper rectangular frame 4 and the lower rectangular frame 5 are connected by connecting rods 6 to form a single load-bearing steel frame, and then a prestressed steel mesh is manufactured, and the upper steel mesh 7 is welded and fixed to the top surface of the upper rectangular frame 4, and the lower steel mesh 8 is welded and fixed to the bottom surface of the lower rectangular frame 5; Step 3, making embedded components according to the design specifications of the embedded components, fixing the embedded components to the bearing steel frame and the prestressed steel mesh according to the embedded positioning of each embedded component, multiple upper screw barrels 9 are dispersedly welded and fixed to one end of the transverse steel bars of the upper steel mesh 7 and one end of the longitudinal steel bars of the upper steel mesh 7, multiple lower screw barrels 10 are dispersedly welded and fixed to one end of the transverse steel bars of the lower steel mesh 8 and one end of the longitudinal steel bars of the lower steel mesh 8, the cap is threadedly connected to the top end of the upper screw barrel 9, the adjusting rod 11 is welded and fixed to the bearing steel frame, and the top cover is threadedly connected to the top end of the outer tube; Step 4: After placing the bearing steel frame at the predetermined position in the formwork, pouring, vibrating, plastering, curing, roughening, and grooving are gradually carried out. After the road panel is completed, the top cover is replaced with a matching lifting ring and connected with the top thread of the outer tube; Step 5, transport the pavement panels to the predetermined position for laying and installation, remove the lifting rings, connect the adjacent pavement panels through the tongue-and-groove upper edge 2 and the tongue-and-groove lower edge 3, the upper screw barrel 9 and the lower screw barrel 10 of the adjacent pavement panels correspond to each other, adjust the length of the adjusting rod 11 to control the horizontality of the pavement panels, remove the caps, and then thread the fixing screws with the corresponding upper screw barrel 9 and lower screw barrel 10 of the adjacent pavement panels to fix the adjacent pavement panels, pour concrete into the rectangular groove 12 through the inner rod, cover the top cover, and complete the installation construction.

[0019] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An airport assembled pavement panel, comprising a pavement panel, a bearing steel frame arranged in the pavement panel, a prestressed steel mesh and embedded components arranged on the bearing steel frame, and a fixing screw for fixing adjacent pavement panels, characterized in that: The road panel comprises a middle panel (1), and two tongue-and-groove upper edges (2) and two tongue-and-groove lower edges (3) integrally formed with the middle panel (1); the middle panel (1) is in a rectangular structure as a whole; the two tongue-and-groove upper edges (2) are respectively arranged on the outer sides of two adjacent side portions of the middle panel (1); the two tongue-and-groove lower edges (3) are respectively arranged on the outer sides of the other two adjacent side portions of the middle panel (1); the thickness of the tongue-and-groove upper edges (2) and the tongue-and-groove lower edges (3) are both half the thickness of the road panel; the width of the tongue-and-groove upper edges (2) and the tongue-and-groove lower edges (3) are the same; the top surface of the tongue-and-groove upper edges (2) is flush with the top surface of the middle panel (1); the bottom surface of the tongue-and-groove lower edges (3) is flush with the bottom surface of the middle panel (1); The bottom surface of the upper panel (1) is flush with the bottom surface of the upper panel (1), the bearing steel frame is an overall rectangular frame structure, the bearing steel frame comprises an upper rectangular frame (4), a lower rectangular frame (5) and a connecting rod (6), the upper rectangular frame (4) and the lower rectangular frame (5) have the same specifications and are arranged to overlap with each other at intervals, the connecting rod (6) is connected between the upper rectangular frame (4) and the lower rectangular frame (5), the prestressed steel mesh comprises an upper steel mesh (7) and a lower steel mesh (8) laid horizontally, the upper steel mesh (7) and the lower steel mesh (8) both comprise transverse steel bars and longitudinal steel bars arranged perpendicular to each other in a grid shape, the transverse steel bar spacing of the upper steel mesh (7) and the transverse steel bar spacing of the lower steel mesh (8) are equal to the transverse steel bar spacing of the lower steel mesh (8). The spacing of the longitudinal steel bars of the upper steel mesh (7) is the same as the spacing of the longitudinal steel bars of the lower steel mesh (8); the upper steel mesh (7) is laid on the top surface of the upper rectangular frame (4) and is welded and fixed to the upper rectangular frame (4); the lower steel mesh (8) is laid on the bottom surface of the lower rectangular frame (5) and is welded and fixed to the lower rectangular frame (5); one end of the transverse steel bars of the upper steel mesh (7) and one end of the longitudinal steel bars of the upper steel mesh (7) are respectively located within the two tongue-and-groove upper edges (2); one end of the transverse steel bars of the lower steel mesh (8) and one end of the longitudinal steel bars of the lower steel mesh (8) are respectively located within the two tongue-and-groove lower edges (3); the embedded components include embedded components respectively embedded in the two A plurality of upper layer screw barrels (9) in the upper edge of the tongue (2), a plurality of lower layer screw barrels (10) respectively embedded in the two lower edges of the tongue (3), and four adjusting rods (11) embedded in the middle panel (1), wherein the upper layer screw barrels (9), the lower layer screw barrels (10) and the adjusting rods (11) are all arranged vertically, the plurality of upper layer screw barrels (9) are dispersedly fixed on the transverse steel bar ends of the upper steel bar mesh (7) and the longitudinal steel bar ends of the upper steel bar mesh (7), the plurality of lower layer screw barrels (10) are dispersedly fixed on the transverse steel bar ends of the lower steel bar mesh (8) and the longitudinal steel bar ends of the lower steel bar mesh (8), and the upper layer screw barrels (9) and the lower layer screw barrels (10) both have internal threads of the same specification.

2. The airport assembled pavement panel according to claim 1, characterized in that: The bottom surface of the middle panel (1) is provided with a rectangular groove (12), the bottom of the adjusting rod (11) is connected with the rectangular groove (12), the adjusting rod (11) comprises an outer tube, an inner rod and a top cover, the outer tube and the inner rod are both hollow tubular structures, the belly of the outer tube is welded and fixed to the bearing steel frame, the length of the outer tube and the outer rod are both less than the thickness of the middle panel (1), the inner part of the outer tube is provided with an internal thread, the outer periphery of the inner rod is provided with an external thread, the outer tube is sleeved on the inner rod and is threadedly connected with the inner rod, a support platform (13) is provided at the bottom of the inner rod, the support platform (13) is arranged in the rectangular groove (12), the support platform (13) is a hollow truncated cone structure, the inner rod is connected with the support platform (13), the bottom surface of the support platform (13) is flush with the bottom surface of the middle panel (1), and the side walls of the inner rod and the support platform (13) are both provided with a plurality of grouting holes (14).

3. The airport assembled pavement panel according to claim 2, characterized in that: The plane area of ​​the notch of the rectangular groove (12) is greater than two-thirds of the bottom surface area of ​​the middle panel (1), and the depth of the rectangular groove (12) is 10-30 mm.

4. The airport assembled pavement panel according to claim 1, characterized in that: The length of the upper screw barrel (9) is less than the thickness of the upper edge of the tongue (2), the length of the lower screw barrel (10) is equal to the thickness of the lower edge of the tongue (3), and a cap is provided on the top of the upper screw barrel (9), the cap is threadedly connected to the top of the upper screw barrel (9), and the top of the cap is flush with the top surface of the upper edge of the tongue (2).

5. The airport assembled pavement panel according to claim 3, characterized in that: The specifications of the fixing screw rod are compatible with the specifications of the internal threads of the upper screw barrel (9) and the lower screw barrel (10), and the length of the fixing screw rod is less than the thickness of the road panel.

6. The airport assembled pavement panel according to claim 1, characterized in that: The top cover is threadedly connected to the top end of the outer tube, and the top end of the top cover is flush with the top surface of the road panel.

7. The airport assembled pavement panel according to claim 3, characterized in that: The bottom of the rectangular groove (12) is provided with anti-slip grooves.

8. A method for manufacturing and installing an airport prefabricated pavement panel according to any one of claims 1 to 7, characterized in that: It includes the following steps: Step 1: Design the specifications of the pavement panel, the specifications and positioning of the load-bearing steel frame and prestressed steel mesh, and the specifications and embedded positioning of each embedded component according to the airport pavement paving plan and requirements; Step 2, in a production workshop, a load-bearing steel frame is manufactured according to the design requirements, square steel is cut into suitable lengths, and four square steels are welded in sequence to form an upper rectangular frame (4) or a lower rectangular frame (5), and the upper rectangular frame (4) and the lower rectangular frame (5) are connected by connecting rods (6) to form a single load-bearing steel frame, and then a prestressed steel mesh is manufactured, and the upper steel mesh (7) is welded and fixed to the top surface of the upper rectangular frame (4), and the lower steel mesh (8) is welded and fixed to the bottom surface of the lower rectangular frame (5); Step 3, manufacturing the embedded components according to the design specifications of the embedded components, fixing the embedded components to the bearing steel frame and the prestressed steel mesh according to the embedded positioning of each embedded component, a plurality of upper screw barrels (9) are dispersedly welded and fixed to one end of the transverse steel bars of the upper steel mesh (7) and one end of the longitudinal steel bars of the upper steel mesh (7), a plurality of lower screw barrels (10) are dispersedly welded and fixed to one end of the transverse steel bars of the lower steel mesh (8) and one end of the longitudinal steel bars of the lower steel mesh (8), a cap is threadedly connected to the top end of the upper screw barrel (9), an adjusting rod (11) is welded and fixed to the bearing steel frame, and a top cover is threadedly connected to the top end of the outer tube; Step 4, after placing the load-bearing steel frame at a predetermined position in the formwork, gradually carry out the pouring, vibrating, plastering, roughening, curing, and grooving processes; Step 5, transport the pavement panels to the predetermined position for laying and installation, adjacent pavement panels are connected by tongue-and-groove upper edges (2) and tongue-and-groove lower edges (3), the upper screw barrels (9) and lower screw barrels (10) of adjacent pavement panels correspond to each other, the length of the adjusting rod (11) is adjusted to control the horizontality of the pavement panels, the cap is removed, and then the fixing screw rod is threadedly connected to the corresponding upper screw barrel (9) and lower screw barrel (10) of the adjacent pavement panels to connect and fix the adjacent pavement panels, concrete is poured into the rectangular groove (12) through the inner rod, and the top cover is covered to complete the installation construction.

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