A new recyclable special temporary road and its construction method

Abstract

The application is a novel recyclable special temporary road and its construction method, which comprises a standard section, a direction-changing connecting piece, a directional connecting key and a lateral bolt fixing assembly. Adjacent two standard sections and the standard section and the direction-changing connecting piece are respectively connected into a whole through the directional connecting key and fixed through the lateral bolt fixing assembly. The standard section and the direction-changing connecting piece both comprise a polyether ether ketone layer, the polyether ether ketone layer is internally provided with a reinforcing layer, the upper surface of the polyether ether ketone layer is provided with a plurality of anti-skid grooves parallel to the road section, the upper surface of the road foundation is provided with a tooth-shaped rubber pad, and the polyether ether ketone layer is arranged on the upper surface of the tooth-shaped rubber pad. The special temporary road has large hardness and high strength, good wear resistance, impact resistance, fatigue resistance and corrosion resistance, and can be standardized and recycled multiple times.

Description

Technical Field

[0001] The present invention relates to the technical field of road construction, and particularly relates to a new type of recyclable special temporary road and its construction method. Background Art

[0002] At the current stage of project construction, the temporary road is usually constructed by means of precast slab assembly, cast-in-place concrete, steel plate assembly, or the combination of temporary road and permanent road. During construction, the precast slab assembly, steel plate assembly, and cast-in-place concrete road have high construction costs. The precast slabs and steel plates are heavy during transportation and difficult to hoist, and have high requirements for the site and foundation. Although the combination of temporary and permanent roads can save certain construction costs during construction, due to many conflicts between the permanent road based on design planning and actual construction, it cannot cover all areas and meet the on-site construction requirements. It can only be used when the main roads coincide, and other methods need to be adopted for coordinated construction, which has high requirements and progress in site planning and implementation. Summary of the Invention

[0003] The present invention aims to solve the deficiencies of the prior art and provides a new type of recyclable special temporary road and its construction method.

[0004] To achieve the above object, the present invention adopts the following technical solutions: A new type of recyclable special temporary road includes standard sections, steering connectors, directional connection keys, and lateral bolt fixing components. Adjacent standard sections and between a standard section and a steering connector are respectively fixedly connected into a whole by directional connection keys in an embedded manner and fixed by lateral bolt fixing components. Both the standard sections and the steering connectors include a polyether ether ketone layer, a reinforcing layer is arranged inside the polyether ether ketone layer, a plurality of anti-slip grooves parallel to the road section are arranged on the upper surface of the polyether ether ketone layer, a toothed rubber pad is arranged on the upper surface of the road foundation, and the polyether ether ketone layer is arranged on the upper surface of the toothed rubber pad.

[0005] Specifically, the directional connection key includes a flat plate, a vertical plate, an angle plate, and a screw rod. The vertical plate is arranged in the middle of the upper surface of the flat plate to form a "convex" shape. The angle plate is arranged at the end of the side arm of the included angle formed by the vertical plate and the flat plate, and a plurality of screw rods are arranged on the lower surface of the flat plate.

[0006] Specifically, when the standard section is connected to the directional connection key, the end of the standard section is arranged on the upper surface of the corresponding flat plate and abuts against the side walls of the vertical plate and the angle plate.

[0007] Specifically, when the steering connector is connected to the directional connection key, the end of the steering connector is arranged on the top of the corresponding flat plate and abuts against the side walls of the vertical plate and the angle plate.

[0008] Specifically, the lateral bolt fixing component includes a fixing plate and a reinforcing bolt. The fixing plate is arranged on the outer surfaces of the vertical plate and the angle plate, and the reinforcing bolt penetrates through the fixing plate and the angle plate and then screws into the standard section or the steering connector.

[0009] Specifically, the reinforcing layer is made of elastic steel strand or fiber-reinforced composite material.

[0010] A novel construction method for recyclable special temporary roads includes the following steps:

[0011] Step 1: Fabricate standard sections and reversing connectors for temporary roads according to design dimensions and construction requirements, and transport them to the construction site after processing.

[0012] Step 2: Based on the site road design drawings, measure and lay out the locations of the directional connection keys and the changeover connection components in sequence;

[0013] Step 3: Calculate the slope of the corresponding road section, use special hot processing machinery for road installation to install along the road, and at the same time heat and combine according to the actual slope and angle of the road to bring the road to the glass transition temperature and elastic state, and then adjust the road angle.

[0014] Step 4: Securely connect the standard road section and the reversing connector into a whole using directional connection keys;

[0015] Step 5: Road demolition. Use thermal processing machinery to recycle the road along its length, heating it to an elastic state, then rolling it into a coil, packing it for transport and storage.

[0016] The beneficial effects of this invention are:

[0017] 1. This invention uses a composite carcass of thermoplastic polymer polyetheretherketone (PEEK) and elastic steel strand or fiber-reinforced composite material as the main material for temporary roads. During design and production, it is standardized according to the dimensions of ordinary roads and fire roads. The main components are standard sections of temporary roads and deflection connectors. During use, it is machined to an elastomeric state according to the glass transition temperature of PEEK and installed according to the temporary road planning map. During recycling, it is mechanically heated to an elastic state, then rolled into a coil, packaged, transported, and stored.

[0018] 2. The special temporary road of the present invention has high hardness and strength, good wear resistance, impact resistance, fatigue resistance and corrosion resistance, and can be standardized to manufacture and recycled multiple times.

[0019] 3. The special temporary road of the present invention is quick to install and easy to transport and store after use, and is convenient for repeated use.

[0020] 4. The special temporary road of the present invention adopts thermoplastic molding process and is manufactured in a standardized manner according to design requirements and fire protection requirements. It is divided into standard sections and deflection connectors, which are highly practical and have a wide range of applications. Attached Figure Description

[0021] Figure 1Schematic diagram of the connection between the standard section and the direction-changing connecting part of the present invention;

[0022] Figure 2 Schematic diagram of the structure of the lateral bolt fixing component of the present invention;

[0023] Figure 3 Front view of the directional connection key of the present invention;

[0024] Figure 4 Left view of the directional connection key of the present invention;

[0025] Figure 5 Schematic diagram of the connection between the directional connection key and the standard section of the present invention;

[0026] Figure 6 Schematic diagram of the internal structure of the standard section and the direction-changing connecting part of the present invention;

[0027] In the figure: 1 - standard section; 2 - direction-changing connecting part; 3 - directional connection key; 301 - flat plate; 302 - vertical plate; 303 - angle plate; 304 - screw; 4 - lateral bolt fixing component; 401 - fixing plate; 402 - reinforcing bolt; 5 - polyether ether ketone layer; 6 - toothed rubber pad; 7 - reinforcing layer;

[0028] The following will be described in detail with reference to the embodiments of the present invention and the accompanying drawings. Specific embodiments

[0029] The present invention will be further described below in conjunction with the embodiments:

[0030] As Figures 1-6 shown, a new type of recyclable special temporary road includes a standard section 1, a direction-changing connecting part 2, a directional connection key 3, and a lateral bolt fixing component 4. Between two adjacent standard sections 1 and between the standard section 1 and the direction-changing connecting part 2, they are respectively fixedly connected into a whole through the directional connection key 3 and fixed by the lateral bolt fixing component; the directional connection key 3 includes a flat plate 301, a vertical plate 3

[0031] Standard section 1 and the directional connector 2 are connected by directional connecting key 3 to form a whole. In sections with complex geological conditions, the road and the foundation are connected by special bolts or rivets to form a road in any direction. The screw 304 of the directional connecting key 3 is cast iron or welded steel structure according to the standard geological conditions. It is pressed into the ground during construction and recycled for reuse after construction. The sides of the road in adjacent sections are fixed by lateral bolt fixing components 4.

[0032] Both the standard section 1 and the deflection connector 2 include a polyetheretherketone (PEEK) layer 5, with a reinforcing layer 7 inside the PEEK layer 5. The upper surface of the PEEK layer 5 has several anti-skid grooves parallel to the road cross-section. The upper surface of the road foundation is provided with a toothed rubber pad 6, and the PEEK layer 5 is located on the upper surface of the toothed rubber pad 6. The reinforcing layer 7 is made of elastic steel strand or fiber-reinforced composite material.

[0033] The base layer of the temporary road uses toothed rubber pads 6 as an anti-slip layer and leveling layer. The toothed rubber pads 6 fill the road surface and connect the road base and foundation through deformation friction when compressed. Standard section 1 is designed with standard dimensions according to the conventional road design width and fire protection requirements. Due to the characteristics of polyetheretherketone (PEEK) material, such as high hardness, high strength, wear resistance, impact resistance, fatigue resistance, corrosion resistance, and easy hot processing, the main body of the road uses PEEK combined with elastic steel strand or fiber-reinforced composite material for thermal matrix composite. It is made by conventional mold injection thermoforming process, which is simple in mold design and convenient in production.

[0034] The dimensions of the thermoforming mold for polyetheretherketone (PEEK) material are designed according to the road surface dimensions, and anti-skid grooves are set on the road surface parallel to the cross-sectional direction. Elastic steel strands or fiber-reinforced composite materials reinforce the matrix during construction and recycling, and strengthen temporary roads during use when heated to the glass transition temperature to become a variable elastomer. The strength of the elastic steel strands or fiber-reinforced composite materials is greater than the tensile force plus mechanical friction during construction and recycling. The elastic steel strands should be elastic spiral steel strands; the elastic spiral steel strands or fiber-reinforced composite materials are laid first, followed by PEEK thermoforming. The road foundation uses toothed rubber pads (6) connected to the road surface, with thickness and number of teeth meeting anti-skid and deformation requirements.

[0035] This invention uses polyetheretherketone (PEEK) and elastic steel strand to produce standard temporary road sections 1 and deflection connectors 2 in a standardized manner according to thermoplastic molding processes, design requirements, and fire protection requirements. Due to its high hardness, high strength, wear resistance, impact resistance, fatigue resistance, and corrosion resistance, it meets the requirements for temporary road use. During use, it is heated and paved and recycled according to its glass transition temperature using special machinery, thereby achieving both the requirements for recycling and temporary road use.

[0036] The temporary road of this invention can be reused multiple times. It has high hardness and strength, good wear resistance, impact resistance, fatigue resistance and corrosion resistance. It is easy and quick to transport, can be folded and occupy little space when stored, can be standardized to manufacture and install, has high construction efficiency and can save a lot of costs.

[0037] A novel construction method for recyclable special temporary roads includes the following steps:

[0038] Step 1: Fabricate standard section 1 and reversing connector 2 of the temporary road according to the design dimensions and construction requirements, and transport them to the construction site after processing.

[0039] Step 2: Based on the site road design drawing, measure and lay out the location of the directional connection key 3 and the direction-changing connection piece 2 in sequence;

[0040] Step 3: Calculate the slope of the corresponding road section, use special hot processing machinery for road installation to install along the road, and at the same time heat and combine according to the actual slope and angle of the road to bring the road to the glass transition temperature and elastic state, and then adjust the road angle.

[0041] Step 4: Securely connect the standard section 1 and the reversing connector 2 of the road into a whole using the directional connection key 3;

[0042] Step 5: Road demolition. Use thermal processing machinery to recycle the road along its length, heating it to an elastic state, then rolling it into a coil, packing it for transport and storage.

[0043] Based on the physical properties of polyetheretherketone (PEEK) materials, when the temperature reaches Tg=143℃, it is in a transition state, exhibiting good elasticity and plasticity. Therefore, the hot processing machinery mainly consists of the following key technologies: a constant temperature heating device, a special recycling device, and corresponding essential systems. The process principle is as follows: the tracked machinery moves along the designed route → constant temperature heating to 143℃ → the road material is in an elastic state → the traction device moves → the polygonal recycling device moves → installation or dismantling, packing, and lifting. The minimum size of the polygonal recycling device is equal to the minimum road design size. When the recycling is full, it is packed and moved away, and the polygonal device can be replaced and installed again. The installation of the road section follows the reverse principle of dismantling and recycling, thereby achieving cyclic use and adapting to any slope and angle.

[0044] The special temporary road of this invention has high hardness and strength, and good wear resistance, impact resistance, fatigue resistance, and corrosion resistance. It can be standardized in manufacturing and recycled multiple times. The special temporary road of this invention is quick to install and convenient to transport and store after use, facilitating reuse. The special temporary road of this invention is manufactured using a thermoplastic molding process, and is standardized according to design and fire protection requirements. It consists of a standard section 1 and a reversing connector 2, making it highly practical and widely applicable.

[0045] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] The present invention has been described above by way of example. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present invention, or direct application to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A novel recyclable special temporary road, characterized in that, It includes a standard section (1), a direction-changing connecting piece (2), a directional connecting key (3), and a lateral bolt fixing assembly (4). Between two adjacent standard sections (1) and between the standard section (1) and the direction-changing connecting piece (2), they are fixedly connected into a whole through the directional connecting key (3) by embedding, and are fixed by the lateral bolt fixing assembly; both the standard section (1) and the direction-changing connecting piece (2) include a polyether ether ketone layer (5), a reinforcing layer (7) is arranged inside the polyether ether ketone layer (5), a plurality of anti-slip grooves parallel to the road section are arranged on the upper surface of the polyether ether ketone layer (5), a toothed rubber pad (6) is arranged on the upper surface of the road foundation, and the polyether ether ketone layer (5) is arranged on the upper surface of the toothed rubber pad (6), and this road can be heated into an elastic state.

2. The novel recyclable special temporary road according to claim 1, characterized in that, The directional connecting key (3) includes a flat plate (301), a vertical plate (302), an angle plate (303), and a screw rod (304). The vertical plate (302) is arranged in the middle of the upper surface of the flat plate (301) to form a "convex" shape, the angle plate (303) is arranged at the end of the side arm of the included angle formed by the vertical plate (302) and the flat plate (301), and a plurality of screw rods (304) are arranged on the lower surface of the flat plate (301).

3. A novel recyclable special temporary road according to claim 2, characterized in that, When the standard section (1) is connected to the directional connecting key (3), the end of the standard section (1) is arranged on the upper surface of the corresponding flat plate (301) and abuts against the side walls of the vertical plate (302) and the angle plate (303).

4. A novel recyclable special temporary road according to claim 3, characterized in that, When the direction-changing connecting piece (2) is connected to the directional connecting key (3), the end of the direction-changing connecting piece (2) is arranged on the top of the corresponding flat plate (301) and abuts against the side walls of the vertical plate (302) and the angle plate (303).

5. A novel recyclable special temporary road according to claim 4, characterized in that, The lateral bolt fixing assembly (4) includes a fixing plate (401) and a reinforcing bolt (402). The fixing plate (401) is arranged on the outer surfaces of the vertical plate (302) and the angle plate (303), and the reinforcing bolt (402) passes through the fixing plate (401) and the angle plate (303) and then screws into the standard section (1) or the direction-changing connecting piece (2).

6. A novel recyclable special temporary road according to claim 5, characterized in that, The reinforcing layer (7) is an elastic steel stranded wire or a fiber-reinforced composite material.

7. A construction method for a novel recyclable special temporary road according to claim 6, characterized in that, It includes the following steps: Step 1: Manufacture and produce the standard section (1) and the direction-changing connecting piece (2) of the temporary road according to the design dimensions and construction requirements. After processing and forming, transport them to the construction site; Step 2: Measure and set out according to the site road design drawing, and sequentially determine the positions of the directional connecting key (3) and the direction-changing connecting piece (2); Step 3: Calculate the road slope of the corresponding section, use the special hot processing machinery for road installation to install along the road, and at the same time heat and compound according to the actual slope and angle of the road to make the road in the glass transition temperature into an elastic state, and then adjust the road angle; Step 4: Connect the standard section (1) and the direction-changing connecting piece (2) of the road into a whole through the directional connecting key (3) by embedding; Step 5: Road demolition, use the hot processing machinery to recycle along the road, heat the road to an elastic state, and then curl it into a coil and pack it for transportation and storage.

Images