A prefabricated steel pavement panel and its laying method

Abstract

This invention discloses a prefabricated steel track panel and its laying method. The prefabricated steel track panel includes a bottom support plate, a lower sealing plate, an annular side plate, and a top cover plate. The bottom support plate includes a soft pad and multiple hard support plates. The method includes leveling the foundation; laying the first prefabricated steel track panel; installing a semi-circular connecting block and a positioning block; laying the next prefabricated steel track panel; repeating steps three and four until all prefabricated steel track panels are laid; connecting each adjacent pair of prefabricated steel track panels with locking pins; and injecting sealant into the gap between each adjacent pair of prefabricated steel track panels. This invention has a reasonable structural design and is convenient and simple to lay. The deformation of the soft pad compensates for the gap between the steel track surface and the base layer, preventing air voids. The connection between the steel track panels is achieved by the locking pins and the semi-circular connecting blocks in conjunction with the connecting grooves, allowing the steel track panels to be connected in a detachable manner, eliminating destructive disassembly and assembly work.

Description

Technical Field

[0001] This invention belongs to the field of steel road panel construction technology, specifically relating to a prefabricated steel road panel and its laying method. Background Technology

[0002] Prefabricated airport pavement is an emerging paving technology. Its advantages of off-site prefabrication and on-site paving make it suitable for the rapid maintenance and paving needs of airports at all levels. Existing paving technologies mostly use precast concrete pavement panels. However, concrete prefabrication requires multiple construction processes, making the operation complex and the construction period long. Furthermore, during on-site assembly, individual concrete pavement panels are often large in size, and the tongue-and-groove joints between the panels have inherent processing errors. Assembly, jointing, and seam treatment also involve some wet concrete work, which not only increases the difficulty of on-site construction and reduces construction efficiency but also poses a significant challenge to subsequent panel replacement and maintenance.

[0003] With the development of new materials, new processes, and new equipment, the use of pavement panels that combine steel structures and composite materials not only greatly reduces the weight of a single pavement panel but also correspondingly reduces its dimensions. Furthermore, by applying emerging technologies such as rapid stamping and robotic welding, steel pavement panels can be manufactured quickly, exhibiting new characteristics of lightweight, standardization, and interchangeability.

[0004] Therefore, there is a need to propose a prefabricated steel track panel and its installation method that are easy to lay and maintain. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing a prefabricated steel track panel and its laying method. The panel has a reasonable structural design and is easy and simple to lay. A rigid support plate is formed by setting rigid support plates at multiple corners of the soft pad. The deformation of the soft pad fills the gap between the steel track surface and the base layer, preventing air voids or water ingress that could affect the contact quality. The connection between the steel track panels is achieved by locking pins and semi-circular connecting blocks in conjunction with connecting grooves, making the steel track panels detachable. When individual steel track panels are damaged and need to be replaced, they can be disassembled using tools, eliminating the need for destructive disassembly and assembly.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a prefabricated steel track panel, characterized in that: it includes a bottom support plate, a lower sealing plate, an annular side plate and an upper cover plate, wherein the upper cover plate and the lower sealing plate are respectively connected to the top and bottom of the annular side plate, and the upper cover plate, the lower sealing plate and the annular side plate are connected together to form a steel track panel structure with an internal cavity, wherein stiffening ribs and a filling layer are provided in the cavity of the steel track panel structure, and the bottom support plate is pasted to the bottom of the lower sealing plate;

[0007] The annular side plate is a regular polygonal ring, and the bottom support plate, lower sealing plate and upper cover plate are all regular polygons. The bottom support plate includes a soft pad and multiple hard support plates, and the multiple hard support plates are respectively arranged at multiple corners of the soft pad.

[0008] Each side of the annular side plate is provided with a connecting groove that runs through the upper and lower sides of the annular side plate. The connecting groove includes a semi-circular groove and a rectangular groove that runs through the semi-circular groove.

[0009] The above-mentioned prefabricated steel track panel is characterized in that: the number of rigid support plates is at least three, and each of the three corners of the soft pad is provided with an opening for the rigid support plates to be inserted and assembled, and the side wall of the rigid support plate is bonded and fixed to the side wall of the opening of the soft pad.

[0010] The above-mentioned prefabricated steel track panel is characterized in that: the rigid support plate and the lower sealing plate, as well as the soft pad plate and the lower sealing plate, are all bonded and fixed together.

[0011] The above-mentioned prefabricated steel track panel is characterized in that: the lower sealing plate and the bottom support plate are of the same size, the upper cover plate is embedded in the top inner side of the annular side plate, the lower sealing plate is embedded in the bottom inner side of the annular side plate, and the upper cover plate and the annular side plate are welded and fixed together as well as the lower sealing plate and the annular side plate.

[0012] The aforementioned prefabricated steel track panel is characterized in that: the thickness of the soft pad is greater than the thickness of the rigid support plate.

[0013] The above-mentioned prefabricated steel track panel is characterized in that: the semi-circular groove is located in the middle of the annular side plate, the upper end of the rectangular groove extends through the top of the annular side plate, and the lower end of the rectangular groove extends through the bottom of the annular side plate.

[0014] The above-mentioned prefabricated steel track panel is characterized in that: the stiffening rib assembly includes an inner ring rib and an outer ring rib, and multiple connecting ribs are provided between the inner ring rib and the outer ring rib and between the outer ring rib and the annular side plate;

[0015] The inner and outer ring ribs are both circular and coaxially arranged. The tops of the inner and outer ring ribs and the connecting rib plate are all welded to the upper cover plate, and the bottoms of the inner and outer ring ribs and the connecting rib plate are all welded to the lower cover plate.

[0016] The above-mentioned prefabricated steel track panel is characterized in that: a central hole is provided in the center of the lower sealing plate, and a plurality of circular through holes are also provided in the lower sealing plate, and the plurality of circular through holes are evenly distributed along the circumference of the central hole.

[0017] Meanwhile, the present invention also discloses a method for laying prefabricated steel track panels, characterized in that the method includes the following steps:

[0018] Step 1: Leveling the foundation: The foundation at the location where the steel paving panel will be installed will be treated to ensure that its flatness meets the requirements for the paving panel installation.

[0019] Step 2: Lay the first prefabricated steel track panel: Lay the first prefabricated steel track panel on the leveled foundation;

[0020] Step 3: Install semi-circular connecting blocks and positioning blocks: Determine the position of the next prefabricated steel track panel, and according to the position of the next prefabricated steel track panel, install a semi-circular connecting block in the semi-circular groove on the side of the already laid prefabricated steel track panel that is connected to it. At the same time, place a positioning block at the bottom of the rectangular groove at the bottom of the semi-circular connecting block.

[0021] The positioning block extends to the outside of the rectangular groove, and the semi-circular connecting block has a rectangular slot on its chord length side that matches the rectangular groove. The chord length side of the semi-circular connecting block is flush with the chord length side of the semi-circular groove.

[0022] Step 4: Lay the next prefabricated steel track panel: Install a semi-circular connecting block in the semi-circular groove on the connecting side of the prefabricated steel track panel to be laid. Then, according to the position of the positioning block, lay the prefabricated steel track panel to be laid to the corresponding position, so that the positioning block is inserted into the rectangular groove at the bottom of the prefabricated steel track panel to be laid, and the laying of the next prefabricated steel track panel is completed.

[0023] Among them, the rectangular grooves on the connecting side of two adjacent prefabricated steel duct panels interlock to form a square groove;

[0024] Step 5: Repeat steps 3 and 4 until all prefabricated steel paving panels are laid.

[0025] Step Six: Connect each pair of adjacent prefabricated steel track panels using locking pins: Insert a wrench into the square groove formed by each pair of adjacent prefabricated steel track panels, and insert the wrench into the rectangular slot of the two semi-circular connecting blocks. Rotate the wrench so that the two semi-circular connecting blocks corresponding to the square groove rotate 90 degrees. Then remove the wrench and insert a locking pin into each square groove to complete the connection of the prefabricated steel track panels.

[0026] Step 7: Inject sealant into the gap between every two adjacent prefabricated steel track panels.

[0027] The above-mentioned method for laying prefabricated steel track panels is characterized in that: the locking pin includes a pin body and two spring plates respectively disposed on both sides of the pin body, and a long strip groove is respectively opened on both sides of the pin body;

[0028] The upper end of the spring sheet is hinged to the middle of the elongated groove, and the lower end of the spring sheet is slidably installed in the elongated groove.

[0029] The spring sheet is an angular structure composed of an upper segment and a lower segment, wherein the length of the upper segment is less than the length of the lower segment.

[0030] Compared with the prior art, the present invention has the following advantages:

[0031] 1. This invention sets rigid support plates at multiple corners of the soft pad, so that the rigid support plates and the soft pad can work together to transfer the force of the steel track surface to the base surface. When the base surface is uneven, the deformation of the soft pad can make up for the gap between the steel track surface and the base, preventing air voids or water ingress that could affect the contact quality. At the same time, the soft pad contacts the base surface when deformed, increasing the coefficient of friction between them, and correspondingly increasing the frictional adhesion between the steel track surface and the base surface.

[0032] 2. This invention achieves the connection between steel track panels by using locking pins and semi-circular connecting blocks in conjunction with connecting grooves, so that the steel track panels can be connected in a detachable manner. When individual steel track panels are damaged and need to be replaced, they can be disassembled with tools, eliminating the need for destructive disassembly and assembly work.

[0033] 3. When laying prefabricated steel road panels, the present invention places a positioning block at the bottom of the rectangular groove on the side of the already laid prefabricated steel road panel, which facilitates the rapid laying of the prefabricated steel road panel and avoids the phenomenon of left and right misalignment during the laying of the prefabricated steel road panel.

[0034] In summary, the present invention has a reasonable structural design and is easy and simple to lay. By setting hard support plates at multiple corners of the soft pad, a hard support plate is formed. The deformation of the soft pad fills the gap between the steel track surface and the base layer, preventing air voids or water ingress that could affect the contact quality. The connection between the steel track panels is achieved by locking pins and semi-circular connecting blocks in conjunction with connecting grooves, making the steel track panels detachable. When individual steel track panels are damaged and need to be replaced, they can be disassembled using tools, eliminating the need for destructive disassembly and assembly work.

[0035] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the prefabricated steel track panel of the present invention.

[0037] Figure 2 for Figure 1 Top view.

[0038] Figure 3 for Figure 1 A bottom view.

[0039] Figure 4 for Figure 1 AA sectional view.

[0040] Figure 5 This is a schematic diagram of the connection structure between the semi-circular connecting block and the prefabricated steel track panel of the present invention.

[0041] Figure 6 This is a schematic diagram of the structure of the present invention when a wrench is used to rotate the semi-circular connecting block.

[0042] Figure 7 This is a schematic diagram of the structure of the wrench of the present invention.

[0043] Figure 8 This is a schematic diagram of the connection structure between the semi-circular connecting block and the locking pin of the present invention.

[0044] Figure 9 This is a schematic diagram of the locking pin structure of the present invention.

[0045] Figure 10 This is a schematic diagram of the semi-circular connecting block of the present invention.

[0046] Figure 11 This is a schematic diagram of the installation structure of the strain gauge on the locking pin of the present invention.

[0047] Figure 12 This is a flowchart of the method of the present invention.

[0048] Explanation of reference numerals in the attached figures:

[0049] 1—Soft padding plate; 2—Hard support plate; 3—Top cover plate;

[0050] 4—Lower sealing plate; 5—Annular side plate; 6—Semi-circular groove;

[0051] 7—Rectangular groove; 8—Inner ring rib; 9—Outer ring rib;

[0052] 10—Connecting rib; 11—Center hole; 12—Circular through hole;

[0053] 13—Semi-circular connecting block; 14—Rectangular groove; 15—Positioning block;

[0054] 16—Wrench; 16-1—Wrench handle; 16-2—Square operating head;

[0055] 17—Locking pin; 17-1—Pin body; 17-1-1—U-shaped part;

[0056] 17-1-2—Cover plate; 17-2—Spring leaf; 17-3—Elongated groove;

[0057] 18—Strain gauge. Detailed Implementation

[0058] like Figures 1 to 4 The prefabricated steel duct panel shown includes a bottom support plate, a lower sealing plate 4, an annular side plate 5, and an upper cover plate 3. The upper cover plate 3 and the lower sealing plate 4 are respectively connected to the top and bottom of the annular side plate 5. The upper cover plate 3, the lower sealing plate 4, and the annular side plate 5 are connected together to form a steel duct panel structure with an internal cavity. The cavity of the steel duct panel structure is provided with stiffening ribs and a filling layer. The bottom support plate is attached to the bottom of the lower sealing plate 4.

[0059] The annular side plate 5 is a regular polygonal ring, and the bottom support plate, the lower sealing plate 4 and the upper cover plate 3 are all regular polygons. The bottom support plate includes a soft pad plate 1 and a plurality of hard support plates 2, and the plurality of hard support plates 2 are respectively arranged at a plurality of corners of the soft pad plate 1.

[0060] Each side of the annular side plate 5 is provided with a connecting groove that runs through the upper and lower sides of the annular side plate 5. The connecting groove includes a semi-circular groove 6 and a rectangular groove 7 that runs through the semi-circular groove 6.

[0061] In actual use, at least three corners of the soft pad 1 are provided with rigid support plates 2. By providing rigid support plates 2 at multiple corners of the soft pad 1, the rigid support plates 2 and the soft pad 1 can jointly transfer the force of the steel track surface to the base surface. When the base surface is uneven, the deformation of the soft pad 1 can make up for the gap between the steel track surface and the base surface, preventing air voids or water ingress that could affect the contact quality. At the same time, the soft pad 1 contacts the base surface when deformed, increasing the coefficient of friction and correspondingly increasing the frictional adhesion between the steel track surface and the base surface.

[0062] It should be noted that by connecting the upper cover plate 3, the lower sealing plate 4, and the annular side plate 5 together to form a steel track panel structure with an internal cavity, and by setting stiffening ribs and filling layers in the cavity of the steel track panel structure, the self-weight of the steel track panel can be effectively reduced, while ensuring that the steel track panel has sufficient strength and load-bearing capacity.

[0063] In specific implementation, a connecting groove is provided on each side of the annular side plate 5, which runs through the upper and lower sides of the annular side plate 5. This facilitates the connection of two adjacent steel track panels through connectors, thereby preventing the steel track surface from sinking during use.

[0064] In specific implementation, the filling layer is a lightweight polymer foam material that fills the cavity formed by the upper cover plate 3, the lower sealing plate 4, the annular side plate 5, and the stiffening ribs.

[0065] In specific implementation, the annular side plate 5 is a regular hexagonal ring, and the bottom support plate, lower sealing plate 4 and upper cover plate 3 are all regular hexagonal. Hard support plates 2 are provided on the three corners of the soft pad plate 1.

[0066] like Figure 3 As shown, in this embodiment, the number of rigid support plates 2 is at least three, and each of the three corners of the soft pad plate 1 is provided with an opening for the rigid support plates 2 to be inserted and assembled. The side wall of the rigid support plate 2 is bonded and fixed to the side wall of the opening of the soft pad plate 1.

[0067] In actual use, the rigid support plate 2 is made of steel, and the soft pad plate 1 is a custom-made asbestos pad.

[0068] In this embodiment, the rigid support plate 2 and the lower sealing plate 4, as well as the soft pad plate 1 and the lower sealing plate 4, are bonded and fixed together.

[0069] In this embodiment, the lower sealing plate 4 and the bottom support plate are the same size. The upper cover plate 3 is embedded in the top inner side of the annular side plate 5, and the lower sealing plate 4 is embedded in the bottom inner side of the annular side plate 5. The upper cover plate 3 and the annular side plate 5, as well as the lower sealing plate 4 and the annular side plate 5, are welded and fixed together.

[0070] In actual use, the upper cover plate 3, the lower sealing plate 4, and the annular side plate 5 are all made of steel plates.

[0071] In this embodiment, the thickness of the soft pad 1 is greater than the thickness of the hard support plate 2.

[0072] In this embodiment, the semi-circular groove 6 is located in the middle of the annular side plate 5, the upper end of the rectangular groove 7 penetrates the top of the annular side plate 5, and the lower end of the rectangular groove 7 penetrates the bottom of the annular side plate 5.

[0073] In actual use, the diameter of the semi-circular groove 6 is greater than the cross-sectional length of the rectangular groove 7.

[0074] like Figure 4 As shown, in this embodiment, the stiffening rib assembly includes an inner ring rib 8 and an outer ring rib 9, and multiple connecting ribs 10 are provided between the inner ring rib 8 and the outer ring rib 9 and between the outer ring rib 9 and the annular side plate 5.

[0075] The inner ring rib 8 and the outer ring rib 9 are both circular and coaxially arranged. The top of the inner ring rib 8, the outer ring rib 9 and the connecting rib plate 10 are all welded to the upper cover plate 3, and the bottom of the inner ring rib 8, the outer ring rib 9 and the connecting rib plate 10 are all welded to the lower cover plate 4.

[0076] In actual use, both the inner ring rib 8 and the outer ring rib 9 are cylindrical, and the inner ring rib 8, the outer ring rib 9 and the connecting rib plate 10 are all made of steel plate.

[0077] In this embodiment, a central hole 11 is provided in the center of the lower sealing plate 4, and a plurality of circular through holes 12 are also provided on the lower sealing plate 4. The plurality of circular through holes 12 are evenly distributed along the circumference of the central hole 11.

[0078] In actual use, the central hole 11 and the circular through hole 12 are both used as grouting holes to form the filling layer. The central hole 11, the inner ring rib 8 and the outer ring rib 9 are all arranged coaxially. The central hole 11 is located in the inner ring of the inner ring rib 8. The centers of the multiple circular through holes 12 are arranged on the same circumference. The distance between the center of the circular through hole 12 and the center of the central hole 11 is equal to the distance between the center of the central hole 11 and the outer ring rib 9.

[0079] It should be noted that the central hole 11 and the circular through hole 12 are designed to ensure that all cavities in the steel duct panel structure, except for the stiffening rib assembly, can be filled with filler.

[0080] like Figures 5 to 12 The method for laying prefabricated steel track panels is characterized by comprising the following steps:

[0081] Step 1: Leveling the foundation: The foundation at the location where the steel paving panel will be installed will be treated to ensure that its flatness meets the requirements for the paving panel installation.

[0082] Step 2: Lay the first prefabricated steel track panel: Lay the first prefabricated steel track panel on the leveled foundation;

[0083] Step 3: Install the semi-circular connecting block and positioning block: Determine the position of the next prefabricated steel track panel, and based on the position of the next prefabricated steel track panel, install the semi-circular connecting block 13 in the semi-circular groove 6 on the side of the already laid prefabricated steel track panel that is connected to it. At the same time, place a positioning block 15 at the bottom of the rectangular groove 7 below the semi-circular connecting block 13. Figure 5 As shown;

[0084] The positioning block 15 extends to the outside of the rectangular groove 7, and the semi-circular connecting block 13 has a rectangular slot 14 on its chord length side that matches the rectangular groove 7. The chord length side of the semi-circular connecting block 13 is flush with the chord length side of the semi-circular groove 6.

[0085] Step 4: Lay the next prefabricated steel track panel: Install the semi-circular connecting block 13 in the semi-circular groove 6 on the connecting side of the prefabricated steel track panel to be laid. Then, according to the position of the positioning block 15, lay the prefabricated steel track panel to be laid to the corresponding position, so that the positioning block 15 is inserted into the rectangular groove 7 at the bottom of the prefabricated steel track panel to be laid, and the laying of the next prefabricated steel track panel is completed.

[0086] Among them, the rectangular grooves 7 on the connecting side of two adjacent prefabricated steel track panels interlock to form a square groove;

[0087] Step 5: Repeat steps 3 and 4 until all prefabricated steel paving panels are laid.

[0088] Step Six: Connect each pair of adjacent prefabricated steel track panels using locking pins: Insert a wrench 16 into the square groove formed by each pair of adjacent prefabricated steel track panels, and insert the wrench 16 into the rectangular slot 14 of the two semi-circular connecting blocks 13. Rotate the wrench 16 so that the two semi-circular connecting blocks 13 corresponding to the square groove rotate 90 degrees; then remove the wrench and insert a locking pin 17 into each square groove to complete the connection of the prefabricated steel track panels, as shown below. Figure 6 and Figure 8 As shown;

[0089] Step 7: Inject sealant into the gap between every two adjacent prefabricated steel track panels.

[0090] In practice, each side of the prefabricated steel track panel is provided with a connecting groove. Figure 5 The example only shows the specific installation structure within a single connecting groove on one side. After the two semi-circular connecting blocks 13 are rotated 90 degrees, the two prefabricated steel track panels are connected. To facilitate clear observation of the connection status of the semi-circular connecting blocks 13, Figure 6 and Figure 8 The image only shows the specific installation structure within a single connecting groove of one of the prefabricated steel track panels.

[0091] In specific implementation, such as Figure 7 As shown, the wrench 16 includes a wrench handle 16-1 and a square operating head 16-2 disposed in the middle of the wrench handle 16-1. The central axis of the wrench handle 16-1 and the central axis of the square operating head 16-2 are collinear. The wrench handle 16-1 is a round rod and its diameter is smaller than the side length of the square operating head 16-2. The size of the square operating head 16-2 is adapted to the size of the square groove, so that the square operating head 16-2 can move up and down in the square groove.

[0092] In practice, the semi-circular connecting block 13 can be made of steel or polymer material.

[0093] It should be noted that the connection between the steel track panels is achieved by the locking pin 17 and the semi-circular connecting block 13 in conjunction with the connecting groove, so that the steel track panels adopt a detachable connection method. When individual steel track panels are damaged and need to be replaced, they can be disassembled with tools, eliminating the need for destructive disassembly and assembly work.

[0094] In practice, when laying prefabricated steel road panels, a positioning block 15 is placed at the bottom of the rectangular groove 7 on the side of the already laid prefabricated steel road panels to facilitate the rapid laying of the prefabricated steel road panels and avoid the phenomenon of left and right misalignment during the laying of prefabricated steel road panels.

[0095] In practice, the size of the rectangular slot 14 is the same as the size of the rectangular groove 7. When the rectangular grooves 7 on the connecting side of two adjacent prefabricated steel track panels are engaged to form a square groove, the rectangular slots 14 on the two semi-circular connecting blocks 13 at the junction of the two prefabricated steel track panels are engaged to form a channel with the same size as the square groove. This channel connects the upper and lower square grooves.

[0096] It should be noted that when two adjacent prefabricated steel track panels are not locked, all the semi-circular connecting blocks 13 in each prefabricated steel track panel are located in the corresponding semi-circular grooves 6; when two adjacent prefabricated steel track panels are locked, half of the semi-circular connecting blocks 13 on the connecting side of the prefabricated steel track panel is located in the corresponding semi-circular groove 6 of the prefabricated steel track panel, while the other half is located in the corresponding semi-circular groove 6 of the prefabricated steel track panel adjacent to it.

[0097] like Figure 9 As shown, in this embodiment, the locking pin 17 includes a pin body 17-1 and two spring plates 17-2 respectively disposed on both sides of the pin body 17-1. A long strip groove 17-3 is provided on both sides of the pin body 17-1.

[0098] The upper end of the spring sheet 17-2 is hinged to the middle of the elongated groove 17-3, and the lower end of the spring sheet 17-2 is slidably installed in the elongated groove 17-3.

[0099] The spring sheet 17-2 is an angular structure composed of an upper segment and a lower segment, wherein the length of the upper segment is less than the length of the lower segment.

[0100] In its free state, the angle between the upper segment and the pin body 17-1 of the spring sheet 17-2 is greater than the angle between the lower segment and the pin body 17-1.

[0101] In practice, the pin body 17-1 is a cubic structure with a square cross-section; the elongated groove 17-3 is opened along the length of the pin body 17-1.

[0102] like Figure 11As shown, in this embodiment, in order to understand the stress condition of the locking pin 17 between the assembled steel track panels, the pin body 17-1 is a hollow cubic structure composed of a U-shaped part 17-1-1 and a cover plate 17-1-2. A strain gauge 18 is provided between the U-shaped part 17-1-1 and the cover plate 17-1-2; a long strip groove 17-3 is respectively opened on the outer side of the two flange plates of the U-shaped part 17-1-1.

[0103] By installing strain gauges 18 between the U-shaped component 17-1-1 and the cover plate 17-1-2, data can be sampled at any time when the aircraft taxis along the steel pavement panel during takeoff or landing, or when the temperature difference between day and night is large, causing the assembled pavement panels to be squeezed or deformed. Based on the data detected by the strain gauges 18, the effectiveness of force transmission between adjacent assembled steel pavement panels can be detected, facilitating the replacement of damaged assembled steel pavement panels. At the same time, it is convenient to analyze the stress situation of each steel pavement panel during takeoff or landing. A miniature power supply and data transmitter can also be placed in the cavity of the pin body 17-1 to wirelessly transmit the strain data to a relay receiver near the pavement panel in real time, and transmit it to the terminal for reading in real time, so as to judge the health status of the pavement system in real time.

[0104] In practice, when it is found that a prefabricated steel track panel is damaged and needs to be replaced, the sealant around the prefabricated steel track panel is hooked out. After hooking it out, the hook is inserted into the long groove 17-3 of the locking pin 17, and the locking pin 17 can be pulled out forcefully.

[0105] After removing all the locking pins 17, insert the wrench 16 and rotate the semi-circular connecting block 13 90 degrees using the wrench 16 to remove the limiting between the prefabricated steel track panel and the adjacent prefabricated steel track panel.

[0106] After removing the prefabricated steel track panel using a magnetic chuck, level the base layer, place the new prefabricated steel track panel, and limit its position using locking pin 17 and semi-circular connecting block 13, then inject sealant.

[0107] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A method for laying prefabricated steel pavement panels, characterized in that: The prefabricated steel track panel includes a bottom support plate, a lower sealing plate (4), an annular side plate (5), and an upper cover plate (3). The upper cover plate (3) and the lower sealing plate (4) are respectively connected to the top and bottom of the annular side plate (5). The upper cover plate (3), the lower sealing plate (4), and the annular side plate (5) are connected together to form a steel track panel structure with an internal cavity. The cavity of the steel track panel structure is provided with stiffening ribs and a filling layer. The bottom support plate is pasted to the bottom of the lower sealing plate (4). The annular side plate (5) is a regular polygonal ring, and the bottom support plate, the lower sealing plate (4) and the upper cover plate (3) are all regular polygons. The bottom support plate includes a soft pad plate (1) and multiple hard support plates (2). The multiple hard support plates (2) are respectively arranged at multiple corners of the soft pad plate (1). Each side of the annular side plate (5) is provided with a connecting groove that runs through the upper and lower sides of the annular side plate (5). The connecting groove includes a semi-circular groove (6) and a rectangular groove (7) that runs through the semi-circular groove (6). The method includes the following steps: Step 1: Leveling the foundation: The foundation at the location where the steel paving panel will be installed will be treated to ensure that its flatness meets the requirements for the paving panel installation. Step 2: Lay the first prefabricated steel track panel: Lay the first prefabricated steel track panel on the leveled foundation; Step 3: Install semi-circular connecting blocks and positioning blocks: Determine the position of the next prefabricated steel track panel, and according to the position of the next prefabricated steel track panel, install a semi-circular connecting block (13) in the semi-circular groove (6) on the side of the prefabricated steel track panel that is connected to it. At the same time, place a positioning block (15) at the bottom of the rectangular groove (7) at the bottom of the semi-circular connecting block (13). The positioning block (15) extends to the outside of the rectangular groove (7), and the semi-circular connecting block (13) has a rectangular slot (14) on its chord length side that matches the rectangular groove (7). The chord length side of the semi-circular connecting block (13) is flush with the chord length side of the semi-circular groove (6). Step 4: Lay the next prefabricated steel track panel: Install a semi-circular connecting block (13) in the semi-circular groove (6) on the connecting side of the prefabricated steel track panel to be laid. Then, according to the position of the positioning block (15), lay the prefabricated steel track panel to be laid to the corresponding position, so that the positioning block (15) is inserted into the rectangular groove (7) at the bottom of the prefabricated steel track panel to be laid, and complete the laying of the next prefabricated steel track panel. Among them, the rectangular grooves (7) on the connecting side of two adjacent prefabricated steel duct panels interlock to form a square groove; Step 5: Repeat steps 3 and 4 until all prefabricated steel paving panels are laid. Step 6: Connect each pair of adjacent prefabricated steel track panels with locking pins: Insert a wrench (16) into the square groove formed by each pair of adjacent prefabricated steel track panels, and insert the wrench (16) into the rectangular slot (14) of the two semi-circular connecting blocks (13). Rotate the wrench (16) so that the two semi-circular connecting blocks (13) corresponding to the square groove rotate 90 degrees. Then remove the wrench (16) and insert a locking pin (17) into each square groove to complete the connection of the prefabricated steel track panels. Step 7: Inject sealant into the gap between every two adjacent prefabricated steel track panels.

2. The method for laying prefabricated steel track panels according to claim 1, characterized in that: The number of rigid support plates (2) is at least three. Each of the three corners of the soft pad (1) is provided with an opening for the rigid support plates (2) to be inserted. The side wall of the rigid support plate (2) is bonded and fixed to the side wall of the opening of the soft pad (1).

3. The method for laying prefabricated steel track panels according to claim 1, characterized in that: The rigid support plate (2) and the lower sealing plate (4) are bonded and fixed together, as are the soft pad plate (1) and the lower sealing plate (4).

4. The method for laying prefabricated steel track panels according to claim 1, characterized in that: The lower sealing plate (4) and the bottom support plate are the same size. The upper cover plate (3) is embedded in the top inner side of the annular side plate (5). The lower sealing plate (4) is embedded in the bottom inner side of the annular side plate (5). The upper cover plate (3) and the annular side plate (5) and the lower sealing plate (4) and the annular side plate (5) are welded and fixed.

5. A method for laying prefabricated steel track panels according to claim 1, characterized in that: The thickness of the soft pad (1) is greater than the thickness of the hard support plate (2).

6. The method for laying prefabricated steel track panels according to claim 1, characterized in that: The semi-circular groove (6) is located in the middle of the annular side plate (5), the upper end of the rectangular groove (7) penetrates the top of the annular side plate (5), and the lower end of the rectangular groove (7) penetrates the bottom of the annular side plate (5).

7. A method for laying prefabricated steel track panels according to claim 1, characterized in that: The stiffening rib assembly includes an inner ring rib (8) and an outer ring rib (9), and multiple connecting ribs (10) are provided between the inner ring rib (8) and the outer ring rib (9) and between the outer ring rib (9) and the annular side plate (5). The inner ring rib (8) and the outer ring rib (9) are both circular and coaxially arranged. The tops of the inner ring rib (8), the outer ring rib (9) and the connecting rib plate (10) are all welded to the upper cover plate (3), and the bottoms of the inner ring rib (8), the outer ring rib (9) and the connecting rib plate (10) are all welded to the lower cover plate (4).

8. A method for laying prefabricated steel track panels according to claim 1, characterized in that: The lower sealing plate (4) has a central hole (11) in the center, and the lower sealing plate (4) also has a plurality of circular through holes (12), which are evenly distributed along the circumference of the central hole (11).

9. The method for laying prefabricated steel track panels according to claim 1, characterized in that: The locking pin (17) includes a pin body (17-1) and two spring plates (17-2) respectively disposed on both sides of the pin body (17-1). A long strip groove (17-3) is opened on both sides of the pin body (17-1). The upper end of the spring sheet (17-2) is hinged to the middle of the elongated groove (17-3), and the lower end of the spring sheet (17-2) is slidably installed in the elongated groove (17-3). The spring sheet (17-2) is an angular structure composed of an upper segment and a lower segment, wherein the length of the upper segment is less than the length of the lower segment.

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