Paving thickness control device for surface layers of secondary trunk road and roads at levels below secondary trunk road

Abstract

The utility model relates to a pavement thickness control device of a secondary trunk road and a road surface layer below the secondary trunk road, which comprises a door-shaped support, a graduated scale, a graduated scale adjusting device and a steel wire rope limiter, and the inner walls of the two sides of the door-shaped support are respectively provided with an attaching plate attached to a retaining wall structure and a positioning bolt group; the graduated scale is vertically arranged on the outer wall of one side of the door-shaped support, and a graduated scale adjusting device is arranged on the graduated scale; the steel wire rope limiter is vertically arranged on the outer wall of one side of the door-shaped bracket, is arranged on the same side as the graduated scale, and comprises a hook for hanging a steel wire rope. The utility model has the advantages of high installation speed, time saving, novelty, practicability and flexibility, and conforms to the concept of sustainable development.

Description

Technical Field

[0001] This utility model relates to the field of road paving, specifically a paving thickness control device for secondary trunk roads and lower-level roads. Background Technology

[0002] Patent search revealed a device and method for bridge deck construction, comprising two fixed plates and a first roller, a second roller, and a third roller arranged horizontally between the two fixed plates. A pushing mechanism is provided between the first roller and the second roller, which includes a horizontal base plate connected between the two fixed plates. A push plate is slidably disposed on the base plate, and the sliding direction of the push plate is parallel to the arrangement direction of the first roller and the second roller. A pushing component is also provided between the two fixed plates to drive the push plate to move back and forth.

[0003] Traditional devices mostly use fixed standard sections, which can only meet the construction needs of existing bridge working surfaces. They have insufficient space utilization and cannot solve the problem of controlling the accuracy of bridge edges. They are relatively unsuitable for municipal roads and bridges with retaining wall structures. Existing implementation methods are complex and costly in the construction of relatively low-level roads, and therefore are not suitable for low-level roads. Summary of the Invention

[0004] This utility model aims to overcome the defects of the prior art and provide a paving thickness control device for secondary trunk roads and lower level roads, which solves problems such as long construction period, inability to accurately locate elevation, and difficulty in correcting deviations in the later stage.

[0005] To solve the above-mentioned technical problems, this utility model is implemented as follows:

[0006] A pavement thickness control device for secondary trunk roads and lower-level roads, characterized in that: it includes a gantry bracket, a scale, a scale adjustment device, and a wire rope limiter; the inner walls of both sides of the gantry bracket are respectively provided with a fitting plate for fitting a retaining wall structure and a positioning bolt group; the scale is vertically installed on one outer wall of the gantry bracket, and the scale adjustment device is provided on the scale; the wire rope limiter is vertically installed on one outer wall of the gantry bracket and is set on the same side as the scale, and the wire rope limiter includes a hook for hanging the wire rope.

[0007] The aforementioned device for controlling the paving thickness of secondary trunk roads and lower-level roads is characterized in that: the bonding plate is a figure-eight shaped plate.

[0008] The paving thickness control device for secondary trunk roads and lower level roads is characterized in that: the positioning bolt group has a soft rubber head at the end near the retaining wall structure.

[0009] The aforementioned device for controlling the paving thickness of secondary trunk roads and lower-level roads is characterized in that: the scale is a bidirectional adjustable scale, which adjusts the scale through gears, sliding, or rotation.

[0010] The aforementioned device for controlling the paving thickness of secondary trunk roads and lower-level roads is characterized in that: the scale adjustment device is a knob, which is fixed on one side of the scale, and the midpoint of the knob is used as a reference point to observe the upward or downward movement value.

[0011] The aforementioned device for controlling the paving thickness of secondary trunk roads and lower-level roads is characterized in that: the side wall of the gantry bracket for installing the wire rope limiter is provided with a groove, and the hook can be adjusted up and down within the groove to the corresponding scale position.

[0012] This device is installed on retaining walls or sound barriers on both sides of roads or bridges to avoid occupying existing work surfaces. It controls the thickness of the middle and lower layers of asphalt concrete in roads and bridges through a rotating scale adjustment device and a wire rope guide device. The scale adjustment device has gears; the scale is adjusted by rotating a standard section. The red dot on the standard section is the zero point. The distance between the two-way scale adjustment point and the zero point is the adjusted structural layer thickness. By fixing the scale, scale adjustment device, and wire rope limiter to the retaining wall positioning device, the structural layer thickness is controlled. Using this method on secondary trunk roads and lower levels can reduce costs and save energy.

[0013] The beneficial effects of this utility model are as follows: As can be seen from the above technical solution, this application provides a low-cost and easy-to-use asphalt concrete paving thickness control device and implementation method suitable for secondary trunk roads or lower-level roads with retaining wall structures on both sides. It saves the time of traditional construction with retaining wall structures, which involves first constructing asphalt concrete on both sides of the retaining wall and then paving the whole structure, and replaces manual measurement.

[0014] The significant advantages are as follows:

[0015] 1. Compared with existing paving thickness control devices, this patent can design the corresponding angle and size to fit the retaining wall structure according to the project requirements or fabricate and assemble it on site, and fix it by welding.

[0016] 2. This patented material possesses excellent resistance to most household and industrial chemicals. Due to the use of steel plates and stainless steel as raw materials, it exhibits good heat and cold resistance. It also possesses strong rigidity and toughness, good mechanical strength, and good resistance to environmental stress and deformation. The positioning deviation of the lower structural layer in asphalt concrete paving is minimally affected by external environmental factors such as temperature.

[0017] 3. Modular design allows for free adjustment and customization to fit the retaining wall's dimensions, shape, and angle. It is easy to assemble and disassemble, takes up minimal space after installation, is simple to manufacture, and is reusable. This improves worker installation efficiency and provides a reference for construction equipment, thus increasing worker motivation. Its applicability is extremely wide.

[0018] 4. The device is installed on retaining walls or sound barriers, which does not take up space. Moreover, it is convenient for personnel to read the data on the construction equipment, which improves the accuracy of construction and greatly reduces the phenomenon of poor road and bridge surface edge flatness that cannot be corrected.

[0019] 5. This patent utilizes the retaining walls or sound barriers on both sides of the bridge, and the specifications, dimensions, and angles of the device can be freely adjusted according to the specific structure of the project.

[0020] Compared to the searched patents, this patent is simple to manufacture, does not occupy existing working surfaces, has good molding quality, is easy to operate, easy to read, has low cost, is reusable, has high turnover, saves construction time, has high accuracy, is quick to install, saves time, and has novelty, practicality, flexibility, and is in line with the concept of sustainable development. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a schematic diagram of the structure of this application;

[0023] Figure 2 Schematic diagram of a ruler and wire rope limiter;

[0024] Figure 3 This is a diagram illustrating the usage status. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.

[0026] like Figure 1-3 As shown: A paving thickness control device for secondary trunk roads and below, which includes a gantry bracket 1, a scale 2, a scale adjustment device 3, and a wire rope limiter 4;

[0027] The portal frame is made of steel plate with a certain rigidity. The inner walls on both sides of the portal frame are respectively provided with a fitting plate 5 for fitting the retaining wall structure and a positioning bolt group 6. The scale is vertically installed on one outer wall of the portal frame and is provided with a scale adjustment device. The wire rope limiter is vertically installed on one outer wall of the portal frame and is set on the same side as the scale. The wire rope limiter includes a hook for hanging the wire rope 8.

[0028] The bonding board is a figure-eight shaped board, designed with a bonding angle that conforms to the actual construction site according to various construction scenarios.

[0029] The positioning bolt assembly has a soft rubber head 7 at the end near the retaining wall structure to prevent damage to the surface of the structure.

[0030] The scale is a bidirectional adjustable scale, which adjusts the scale through gears, sliding, or rotation.

[0031] The scale is designed with a gear or other device on the back side for easy sliding adjustment. The purpose of the two-way scale is that the lower dimension marking can be adjusted according to the specific pavement layer thickness, mainly to facilitate the control of the bridge deck pavement thickness, while the upper dimension marking is for construction machinery to easily observe the dimensional data and control the accuracy during construction.

[0032] Furthermore, the scale adjustment device is a knob, fixed to one side of the scale, with the midpoint of the knob serving as a reference point for observing the upward or downward movement. By rotating the knob of the scale adjustment device, the data of the 0-point distance knob of the bidirectional scale adjustment device can be seen as the data we are adjusting.

[0033] The gantry bracket for installing the wire rope limiter has a groove on its side wall. The hook can be adjusted up and down within the groove to the corresponding scale position. The hook can be manually moved to the corresponding scale position, and then the nut can be tightened to fix the hook position of the wire rope. After the groove of this device limits the hook, it can be set at a fixed and uniform interval according to the construction section division during continuous bridge deck paving, which can accurately control the thickness of the structural layer.

[0034] A method for using a pavement thickness control device for secondary trunk roads and lower-level roads, characterized by comprising the following steps:

[0035] Step 1: Evenly distribute the paving thickness device on the retaining wall structure;

[0036] The portal frame is installed on the top and sides of the retaining wall structure. The bonding plates on the inner walls of both sides are bonded to the two sides of the retaining wall structure, and then tightened with positioning bolts and fixed firmly to the retaining wall.

[0037] Step 2: Rotate the scale adjustment device of all paving thickness devices to the required scale and mark the thickness of the lower paving layer;

[0038] Step 3: Slide the hooks on the wire rope limiters of all paving thickness devices to the scale and adjust them to the paving thickness position;

[0039] Step 4: Hang the wire rope horizontally on the hooks of all paving thickness devices to ensure uniform thickness.

[0040] (1) To control the effect of the bridge deck pavement thickness precision positioning device, the retaining wall positioning device (the steel plate must have sufficient strength, rigidity, stability and thickness not less than 5mm), scale, scale adjustment device and wire rope sliding track device are fixed by welding. Then, this device is installed on the retaining wall structure on one side of the bridge. Finally, the positioning bolts are tightened to fix it firmly to the retaining wall. At this time, the figure-eight positioning steel plate of this device should fit smoothly with the angle of the retaining wall to ensure the accuracy of this device. (The size and angle of the figure-eight steel plate: made according to the design angle of the retaining wall in the drawings. If there are sound barriers on both sides of the bridge, a similar method to this patent can also be used, but all are within the scope of protection of this patent).

[0041] (2) After the device is installed, the device itself should not exceed the boundary line between the bottom of the retaining wall and the pavement to prevent it from affecting the construction of the bridge deck by the construction machinery. The scale should not be too thick and the extended lines should be perpendicular to the road surface. This is to facilitate the control of the thickness and linearity of the bridge deck pavement edge.

[0042] (3) When it is formally applied, we can divide the construction section into even sections according to the design mileage or a certain elevation turning point. After the device is evenly set and installed according to the construction section or elevation line turning point, we can mark the thickness of the paving layer below by rotating the scale adjustment device and at the same time slide the wire rope limiter to the position of the scale adjustment to the paving thickness.

[0043] Process flow:

[0044] The retaining wall positioning device and adjustable scale are assembled to form a precise control over the thickness of the lower layer of asphalt concrete on the bridge deck. This device is installed on the completed retaining wall or sound barrier structures on both sides of the bridge deck. The scale is adjusted according to the thickness of the lower layer of asphalt concrete on the bridge deck. At the same time, the wire rope guiding device aligns the wire rope with the scale. If the thickness of the loose paving is involved, the scale and wire rope are adjusted accordingly based on the data obtained from the test section of the project. When the hook of the wire rope is adjusted to the corresponding scale position in the groove, the groove will limit the hook of the wire rope. At this time, the relative position of the wire rope is fixed and cannot be moved. During construction, this device can be evenly distributed at a certain distance on the retaining wall or sound barrier structure according to the construction section or elevation turning point to limit the thickness of each layer of the bridge deck paving to meet the work requirements.

[0045] In current asphalt concrete construction, the thickness of the middle and lower layers is typically controlled by elevation control using steel wire ropes, while the thickness of the upper layer is usually controlled by balance beams or slippers. However, in the construction of pavements or bridge decks with retaining walls, edge forming quality has always been a difficult problem to overcome (especially for linear projects, long distances, and original curves with large turns). On bridge decks with retaining walls or sound barriers, both the traditional steel wire rope control method and the thickness control method using balance beams and slippers occupy the existing construction work area, making it impossible to correct deviations due to the inability to control the edges, which can have irreversible effects on subsequent construction.

[0046] When paving bridge decks on bridges with retaining walls or sound barriers, operators of large machinery cannot observe the actual data of the edges. Previous thickness control methods cannot guarantee the accuracy of edge thickness and positioning. Edge thickness deviations weaken fatigue resistance, and cracks can reflect onto the upper layers. Since quality problems often occur during the foundation construction stage and sometimes even during the design stage, it is crucial to identify and resolve problems as early as possible to minimize losses and unnecessary waste. Currently, bridge deck construction methods are relatively crude, typically involving placing steel cables and balance beams on the construction surface. However, road surfaces and bridge decks generally have retaining walls or sound barriers, resulting in poor edge control. These existing devices occupy the original construction work area or require initial construction on both sides before overall paving, creating blind spots for edge thickness positioning. Therefore, this patent is based on a novel device designed as a utility model, a reusable, time-saving, convenient, and quick combination device.

[0047] This patented device enables precise positioning and rapid construction of bridge deck edges. Based on the project's route distance and road width, it controls the paving thickness from the edge to the road centerline, a method drastically different from previous construction methods. Furthermore, the device, installed on retaining wall or sound barrier structures, does not occupy working space and facilitates the compaction of cement-stabilized crushed stone, lime-stabilized crushed stone, or asphalt concrete pavement layers from both sides towards the center and from low to high, improving the overall paving quality. The modular design of this patented device allows for easy assembly and disassembly, saves space when disassembled, is simple to manufacture, easy to operate, and reusable. It solves the problems of difficult edge control during bridge deck paving and the inability to correct deviations in subsequent construction.

[0048] The above are merely embodiments provided in this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for controlling the paving thickness of secondary arterial roads and lower-level roads, characterized in that: It includes a portal frame, a scale, a scale adjustment device, and a wire rope limiter. The inner walls on both sides of the portal frame are respectively provided with fitting plates for the retaining wall structure and a set of positioning bolts. The scale is vertically installed on one outer wall of the portal frame and is provided with a scale adjustment device. The wire rope limiter is vertically installed on one outer wall of the portal frame and is set on the same side as the scale. The wire rope limiter includes a hook for hanging the wire rope.

2. The paving thickness control device for secondary trunk roads and lower-level roads according to claim 1, characterized in that: The bonding board is a figure-eight shaped board.

3. The paving thickness control device for secondary arterial roads and lower-level roads according to claim 1, characterized in that: The positioning bolt assembly has a soft rubber head at its end near the retaining wall structure.

4. The paving thickness control device for secondary trunk roads and lower-level roads according to claim 1, characterized in that: The scale is a bidirectional adjustable scale, which adjusts the scale through gears, sliding, or rotation.

5. The paving thickness control device for secondary trunk roads and lower-level roads according to claim 4, characterized in that: The scale adjustment device is a knob, which is fixed to one side of the scale, and the midpoint of the knob is used as a reference point to observe the value of moving up or down.

6. The paving thickness control device for secondary arterial roads and lower-level roads according to claim 1, characterized in that: The side wall of the gantry bracket for installing the wire rope limiter is provided with a groove, and the hook can be adjusted up and down in the groove to the corresponding scale position.

Images