Assembled construction unit and temporary road

Abstract

The utility model relates to the technical field of temporary road construction, in particular to an assembled construction unit and a temporary road. Each assembled construction unit comprises a plate main body, a covering edge, a reinforcement cage and a hoisting cylinder; in each group of opposite sides of the plate main body, one side is provided with a groove, the other side is provided with a bulge, and the position of the bulge on the corresponding side corresponds to the position of the groove on the corresponding side; the covered edges are arranged on the outer contour lines of the upper and lower end faces of the plate main body; the reinforcement cage is embedded in the plate main body and comprises double-layer steel bars; the hoisting cylinder is embedded into the plate body, the two axial ends of the hoisting cylinder are flush with the upper end face and the lower end face of the plate body, the hoisting cylinder is hollow, and the double-layer steel bar penetrates through the hoisting cylinder. The temporary road is assembled by using the assembled construction units, so that rapid deployment and efficient recycling of construction are realized, and meanwhile, the influence on the environment is remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of temporary road construction, in particular to a prefabricated construction unit and a temporary road. Background Art

[0002] In the field of construction, the construction of temporary roads is an essential part of the construction process. These roads not only need to bear the frequent passage of construction vehicles, but also ensure the safety and efficiency of construction. With the deepening of the concept of environmental protection and sustainable development, green construction methods have received increasing attention.

[0003] Traditional temporary construction roads usually adopt cast-in-place concrete or temporary steel plates for laying. Cast-in-place concrete roads require a long curing time, which is not conducive to projects with tight construction periods; after construction, it is also necessary to break, clean and transport them out. In some sites with complex construction organizations and multiple traffic diversions, the road surfaces in different positions are built and broken multiple times, wasting manpower and material resources, affecting the construction period, and at the same time generating a large amount of construction waste and polluting the environment. Although temporary steel plates are laid quickly, there are risks of deformation and vehicle skidding, affecting driving safety. In addition, some prefabricated block roads also have problems such as easy breakage, high cost and difficulty in recycling. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the embodiments of the utility model is to provide a prefabricated construction unit, which realizes the rapid deployment and efficient recycling of construction by using precast concrete plate units to assemble a temporary road, and at the same time significantly reduces the impact on the environment.

[0005] In order to achieve the above purpose, the embodiments of the utility model provide the following technical solutions:

[0006] A prefabricated construction unit includes: a plate main body, a side strip, a steel reinforcement cage and a lifting cylinder; in each pair of opposite sides of the plate main body, one side is provided with a groove, and the other side is provided with a protrusion, and the position of the protrusion on its corresponding side corresponds to the position of the groove on its corresponding side; the side strip is arranged on the outer contour lines of the upper and lower end faces of the plate main body; the steel reinforcement cage is embedded in the plate main body, and the steel reinforcement cage includes double-layer steel bars; the lifting cylinder is embedded in the plate main body, the axial two ends of the lifting cylinder are flush with the upper and lower end faces of the plate main body, the inside of the lifting cylinder is hollow, and the double-layer steel bars penetrate through the lifting cylinder.

[0007] The embodiments of the utility model also provide a temporary road, which is spliced by the above-mentioned prefabricated construction unit.

[0008] One or more technical solutions provided in the embodiments of the utility model have at least the following technical effects or advantages:

[0009] The prefabricated construction unit includes a plate body, a side edge, a steel cage and a lifting cylinder. Among each pair of opposite sides of the plate body, one side is provided with a groove and the other side is provided with a protrusion. These grooves and protrusions correspond to each other at corresponding positions to ensure that adjacent construction units can be engaged with each other through these structures to form a stable connection. The side edge is arranged on the outer contour line of the upper and lower end faces of the plate body, playing a role in protecting and strengthening the plate body, making the corners of the poured plate body smoother, facilitating the overall assembly, and avoiding damage to the corners during the assembly and use process. The steel cage is embedded in the plate body, enhancing the tensile strength and overall stability of the plate body. The lifting cylinder is embedded in the plate body, and its axial two ends are flush with the upper and lower end faces of the plate body. The inside of the lifting cylinder is hollow, and double-layer steel bars penetrate through the lifting cylinder, forming a lifting hole inside the lifting cylinder. And part of the steel bars of the steel cage serve as lifting bars, facilitating the lifting operation during construction. On the other hand, the setting of the lifting cylinder also facilitates fixing the distance between the two layers of steel bars, facilitating the arrangement and welding operation of the steel cage before pouring.

[0010] Advantages of additional aspects of the present utility model will be given in the following description, some of which will become obvious from the following description, or can be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The specification drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0012] Figure 1 is a three-dimensional external view of the prefabricated construction unit provided by an embodiment of the present utility model;

[0013] Figure 2 is a top external view of the prefabricated construction unit provided by an embodiment of the present utility model;

[0014] Figure 3 is a three-dimensional perspective view of the prefabricated construction unit provided by an embodiment of the present utility model;

[0015] Figure 4 is a top perspective view of the prefabricated construction unit provided by an embodiment of the present utility model;

[0016] Figure 5 is a steel bar layout drawing of the first side provided by an embodiment of the present utility model;

[0017] Figure 6 is a steel bar layout drawing of the second side provided by an embodiment of the present utility model;

[0018] Figure 7 is a construction flow chart provided by an embodiment of the present utility model;

[0019] In the figure: 1. Plate body; 11. Groove; 12. Protrusion; 2. Edge wrapping; 3. Hoisting cylinder; 4. Steel reinforcement cage; 41. Longitudinal main reinforcement; 42. Transverse reinforcement;

[0020] The distances or dimensions between each part are exaggerated for showing the positions of each part, and the schematic diagram is only for illustration. Specific implementation mode

[0021] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. In addition, it should also be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] As introduced in the background technology, the problems existing in the prior art mainly include:

[0023] 1. The construction period of the on-site cast concrete road is long, which is not conducive to the rapid construction requirements.

[0024] 2. The temporary road needs to be demolished after the construction is completed, generating a large amount of construction waste, which is not conducive to environmental protection.

[0025] 3. The temporary steel plates are prone to deformation, posing safety hazards and not being conducive to long-term repeated use.

[0026] 4. Conventional assembled precast blocks have disadvantages such as being easily damaged, high cost, and difficult to recycle.

[0027] This embodiment aims to solve the problems existing in the above prior art, and provides a assembled construction unit and a temporary road. By using precast concrete plates, not only the construction period is shortened and the construction efficiency is improved, but also the generation of construction waste is reduced through the reusable property of the plates, meeting the requirements of green construction and sustainable development. In addition, this method also enhances the stability and safety of the road through specific designs, such as the engagement and fixation of the grooves and protrusions between the plates, providing a more reliable passage guarantee for construction vehicles.

[0028] Figure 1 is the three-dimensional external view of the assembled construction unit, Figure 2 is the top view, Figure 3 and Figure 4They are corresponding perspective views respectively. The prefabricated construction unit includes a plate body 1, a side edge 2, a steel reinforcement cage 4 and a hoisting cylinder 3; among each pair of opposite sides of the plate body 1, one side is provided with a groove 11, and the other side is provided with a protrusion 12, and the position of the protrusion 12 on its corresponding side corresponds to the position of the groove 11 on its corresponding side; the side edge 2 is arranged on the outer contour lines of the upper and lower end faces of the plate body 1; the steel reinforcement cage 4 is embedded in the plate body 1, and the steel reinforcement cage 4 includes double-layer steel bars; the hoisting cylinder 3 is embedded in the plate body 1, the axial two ends of the hoisting cylinder 3 are flush with the upper and lower end faces of the plate body 1, the inside of the hoisting cylinder 3 is hollow, and the double-layer steel bars penetrate through the hoisting cylinder 3.

[0029] The prefabricated construction unit includes a plate body 1, a side edge 2, a steel reinforcement cage 4 and a hoisting cylinder 3. Among each pair of opposite sides of the plate body 1, one side is provided with a groove 11, and the other side is provided with a protrusion 12. These grooves 11 and protrusions 12 correspond to each other in the corresponding positions, ensuring that adjacent construction units can be interlocked through these structures to form a stable connection. The side edge 2 is arranged on the outer contour lines of the upper and lower end faces of the plate body 1, playing a role in protecting and strengthening the plate body 1, making the corners of the poured plate body 1 smoother and facilitating the overall assembly, while avoiding damage to the corners during the assembly and use process. The steel reinforcement cage 4 is embedded in the plate body 1, enhancing the tensile strength and overall stability of the plate body 1. The hoisting cylinder 3 is embedded in the plate body 1, its axial two ends are flush with the upper and lower end faces of the plate body 1, the inside of the hoisting cylinder 3 is hollow, the double-layer steel bars penetrate through the hoisting cylinder 3, a hoisting hole is formed inside the hoisting cylinder 3, and some steel bars of the steel reinforcement cage 4 serve as lifting bars, facilitating the hoisting operation during construction. On the other hand, the setting of the hoisting cylinder 3 also facilitates fixing the distance between the two layers of steel bars, facilitating the arrangement and welding operation of the steel reinforcement cage 4 before pouring.

[0030] The cross-section of the plate body 1 is rectangular, including a group of long sides and a group of short sides. Among a group of long sides, a groove 11 is arranged in the middle of one long side, and a protrusion 12 is arranged in the middle of the other long side; among a group of short sides, a groove 11 is arranged in the middle of one short side, and a protrusion 12 is arranged in the middle of the other short side. Grooves 11 and protrusions 12 are respectively arranged in the middle of the long sides and short sides. The design of these structures enables the construction units to be more stable during splicing, reducing the possibility of dislocation. The corresponding setting of the grooves 11 and protrusions 12 ensures the precise docking of the construction units during splicing, improving the construction efficiency and quality.

[0031] Such as Figure 2As shown, the cross-sections of the groove 11 and the protrusion 12 are both trapezoidal, the groove 11 is a trapezoidal structure with a narrow inside and a wide outside, and the protrusion 12 is a trapezoidal structure with a wide inside and a narrow outside. This design not only enhances the bite strength of the construction unit, but also improves the stability of the splicing. The design of the trapezoidal structure also helps to reduce stress concentration during the splicing process and extend the service life of the construction unit.

[0032] The block body 1 is a cast-in-place concrete prefabricated block. The prefabricated block mainly uses C30 cast-in-place concrete and is cast and formed according to the shape of the prefabricated block mold. This cast-in-place concrete prefabricated block not only has high strength and durability, but can also be quickly prefabricated in a factory or on site, which improves the flexibility and efficiency of construction.

[0033] The edging 2 is an angle steel, which is arranged in a circle along the outer contour of the upper and lower end surfaces of the plate body 1, with the opening of the angle steel facing inward. The edging 2 is made of 3cm*3cm angle steel. The angle steel is installed after the steel bars are tied and welded to the steel cage 4, so that the edges and corners of the cast prefabricated blocks are straighter, which is conducive to overall assembly and avoids damage during use. This design not only enhances the edge strength of the plate body 1, but also provides additional protection to prevent damage to the edges during construction. The use of angle steel also helps to improve the overall rigidity and stability of the construction unit.

[0034] The steel cage 4 is connected to the edge 2 by oblique tie bars, the upper steel bars of the steel cage 4 are welded to the upper edge 2 by oblique tie bars, and the lower steel bars of the steel cage 4 are welded to the lower edge 2 by oblique tie bars. This connection method not only enhances the overall stability of the construction unit, but also improves its tensile strength and bending strength. The use of oblique tie bars also helps to disperse stress and reduce deformation of the construction unit during use.

[0035] like Figure 4 , Figure 5 , Figure 6 As shown, each layer of steel bars includes longitudinal main bars 41 and transverse steel bars 42, which are staggered to form a mesh shape. The spacing between the two layers of steel bars adopts a double-layer steel mesh of 200mm*200mm. The longitudinal main bars 41 adopt 20mm diameter threaded steel bars, and the transverse steel bars 42 adopt 14mm diameter threaded steel bars. The intersections are welded, and the tensile strength of the prefabricated blocks is enhanced by installing steel bars to meet the requirements of road use. This design makes the steel cage 4 more stable during the hoisting process and reduces the safety hazards during the construction process. At the same time, the steel cage 4 with a mesh structure also improves the tensile strength and bending strength of the construction unit.

[0036] The hoisting cylinder 3 is axially provided with two through holes, and one longitudinal main reinforcement 41 in each layer of steel bars is installed in one through hole of the hoisting cylinder 3. The hoisting cylinder 3 is a cylinder, and the hoisting cylinder 3 is a PVC pipe or a steel pipe. A PVC pipe or a steel pipe with a diameter of 10 cm is embedded in the mold, and the longitudinal main reinforcement 41 passes through the hoisting cylinder 3. The longitudinal main reinforcement 41 not only enhances the tensile strength but also serves as a hoisting function, and the longitudinal main reinforcement 41 inside the hoisting cylinder 3 is treated with rust prevention.

[0037] Based on the above-mentioned assembled construction unit, this embodiment provides a temporary road, which is spliced by the assembled construction unit, and adjacent construction units are mutually engaged and fixed through the protrusion 12 and the groove 11. This temporary road not only has high strength and stability, but also can be quickly deployed and demolished according to construction requirements. The use of the assembled construction unit also makes the construction of the temporary road more flexible and efficient.

[0038] The construction units are arranged in a rectangular array. This arrangement not only makes the structure of the temporary road more stable, but also facilitates management and maintenance during construction. The rectangular array arrangement also helps to improve the utilization rate of the construction units and reduce material waste.

[0039] As Figure 7 shown, the above-mentioned temporary road construction method is as follows:

[0040] (1) Foundation treatment

[0041] Construction of the temporary road base in the site: Use crushed stone (brick slag) mixed with 10% cement for replacement filling to form a cement stabilized layer. At the same time, add some waterproof additives to the surface layer to prevent rainwater from penetrating into the roadbed. After vibrating and compacting with a vibratory roller, carry out the road surface construction.

[0042] (2) Prefabrication of temporary road blocks

[0043] The construction process is as follows:

[0044] 1) Mold making: If the precast block is too large, problems such as inconvenient processing, handling, and assembly are likely to occur. If it is too small, it is easily crushed and has poor reusability. After on-site tests and comprehensive consideration, the mold size in this embodiment is 2m * 1m * 0.25m.

[0045] 2) Fabrication and installation of the steel reinforcement cage 4: The steel bar spacing adopts a double-layer steel bar mesh of 200mm * 200mm. The longitudinal main reinforcement 41 adopts threaded steel with a diameter of 20mm, and the transverse steel bar 42 adopts threaded steel with a diameter of 14mm. The steel bars at the groove 11 are bent according to the structural dimensions, and the intersections are welded. Three diverging steel bars with a length of 40 cm and a diameter of 10 mm are set at each corner.

[0046] 3) Installation of embedded parts: Install one round steel cylinder with a diameter of 25 cm at each of the four corners as a hoisting hole.

[0047] 4) Angle steel edge wrapping 2: After the steel reinforcement cage 4 is fabricated, angle steel with a size of 3cm * 3cm is used to wrap the edge of each precast block for edge wrapping 2.

[0048] 5) Mold installation: A steel mold is adopted, and the steel reinforcement cage 4 wrapped with angle steel is placed into the mold, paying attention to protecting the embedded parts.

[0049] 6) Concrete pouring: After sealing the two ends of the embedded parts, C30 concrete is used for pouring and vibrating.

[0050] 7) Imprinting for precast block marking: The imprinting can be made according to requirements, and at the same time, it meets the need for road surface anti-skid.

[0051] 8) Demolding: Remove the mold and do a good job in the appearance quality treatment of the precast block.

[0052] 9) Curing: Adjust the curing system in a timely manner according to the changes in concrete temperature and environmental parameters, and control the internal and external temperature difference of the concrete to meet the requirements.

[0053] (3) Assembly of temporary road blocks

[0054] 1) Subgrade compaction: After replacing and filling with crushed stone (brick slag) mixed with 10% cement, it is compacted densely by a vibratory roller.

[0055] 2) Surveying and setting out: Conduct surveying and setting out according to the construction site.

[0056] 3) Laying a 10cm stone powder bonding layer: Lay the stone powder to ensure the flatness of the paved road surface.

[0057] 4) Hoisting or forklift installation: Use a forklift and a truck crane to pave the precast blocks on a flat road surface. The grooves 11 and protrusions 12 of adjacent precast slabs are staggered and mutually fitted and connected to prevent the translation and dislocation of each precast block.

[0058] 5) Leveling: Ensure that there is no step difference or warping when bearing after the installation of adjacent precast blocks.

[0059] 6) Joint filling: Use medium-coarse sand to fill the gaps between the precast blocks after paving. To prevent rainwater from seeping into the base layer through the gaps and increasing the water content, affecting the stability of the base layer, on the basis of embedding the medium-coarse sand, the joints are filled with asphalt.

[0060] 7) The assembly is completed, and the assembly effect is as shown in the figure.

[0061] The above assembled temporary road has the following advantages:

[0062] (1) The precast blocks used in this assembled road can be precast in advance, and industrial production can be realized in the factory. The quality is guaranteed, and it can be directly installed on-site, which is convenient and fast, improving the construction efficiency, and is especially suitable for projects with tight construction periods.

[0063] (2) This assembled precast slab can be recycled, and it also avoids the breaking, cleaning and external transportation of temporary construction roads. It is especially suitable for some sites with complex construction organizations and multiple traffic diversions, saving construction period, manpower and material resources.

[0064] (3) This utility model can make full use of the remaining steel bar scraps on the construction site for welding the steel bar cage 4 of the precast block, reducing the generation of construction waste, being both environmentally friendly and saving material costs.

[0065] (4) Angle steel is used for edging 2 during the production of the precast blocks for paving the road surface, making the edges and corners of the precast blocks straight and facilitating installation, while avoiding damage during use.

[0066] (5) The precast blocks are assembled through the grooves 11 and protrusions 12 on adjacent sides, and both installation and disassembly are relatively convenient.

[0067] This utility model can achieve industrialized production, with convenient and fast construction, and can be reused. Through the angle steel edging 2, the recycling rate is improved, saving the construction period and cost, with reliable quality, safety and environmental protection.

[0068] Although the specific implementation manners of the present utility model are described above in conjunction with the drawings, it is not a limitation to the protection scope of the present utility model. Those skilled in the art should understand that based on the technical solution of the present utility model, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present utility model.

Claims

1. An assembled construction unit, characterized in that: include: The main body of the plate, the edging, the steel cage and the lifting tube; In each set of opposite sides of the plate body, one side is provided with a groove, and the other side is provided with a protrusion, and the position of the protrusion on the corresponding side corresponds to the position of the groove on the corresponding side; The hemming is arranged on the outer contour lines of the upper and lower end surfaces of the plate body; The steel cage is embedded in the main body of the plate, and the steel cage includes double-layer steel bars; The hoisting tube is embedded in the plate body, the axial ends of the hoisting tube are flush with the upper and lower end surfaces of the plate body, the interior of the hoisting tube is hollow, and the double-layer steel bar runs through the hoisting tube.

2. The assembled construction unit according to claim 1, characterized in that: The cross-section of the plate body is rectangular, including a group of long sides and a group of short sides. In the group of long sides, a groove is arranged in the middle of one long side, and a protrusion is arranged in the middle of another long side; in the group of short sides, a groove is arranged in the middle of one short side, and a protrusion is arranged in the middle of another short side.

3. The assembled construction unit according to claim 2, characterized in that: The cross sections of the groove and the protrusion are both trapezoidal. The groove is a trapezoidal structure that is narrow inside and wide outside, and the protrusion is a trapezoidal structure that is wide inside and narrow outside.

4. The assembled construction unit according to claim 1, characterized in that: The plate body is a cast-in-place concrete prefabricated block.

5. The assembled construction unit according to claim 1, characterized in that: The edge wrapping is angle steel, and the angle steel is arranged in a circle along the outer contours of the upper and lower end surfaces of the plate body, and the opening of the angle steel faces inward.

6. The assembled construction unit according to claim 1, characterized in that: The steel cage is connected to the edge by oblique reinforcement, the upper steel bars of the steel cage are connected to the upper edge by oblique reinforcement welding, and the lower steel bars of the steel cage are connected to the lower edge by oblique reinforcement welding.

7. The assembled construction unit according to claim 1, characterized in that: Each layer of steel bars includes longitudinal main bars and transverse steel bars, which are staggered to form a mesh shape. The lifting tube is provided with two through holes along the axial direction, and a longitudinal main bar in each layer of steel bars is installed in a through hole of the lifting tube.

8. The assembled construction unit according to claim 1, characterized in that: The hoisting tube is a cylinder, and the hoisting tube is a PVC tube or a steel tube.

9. A temporary road, characterized in that: It is formed by splicing the assembled construction units as described in any one of claims 1 to 8.

10. The temporary road according to claim 9, characterized in that: The construction units are arranged in a rectangular array.

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