Polygonal road structure
By using a polygonal roadbed structure and precast concrete slab design, problems such as frequent flatness adjustments and weak drainage capacity in temporary road construction are solved, enabling rapid construction, enhanced compressive strength and drainage performance, and extended service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-15
- Publication Date
- 2026-04-07
AI Technical Summary
Existing temporary road construction suffers from problems such as frequent adjustments to flatness, long maintenance cycles, susceptibility to settlement and deformation, easy cracking at joints, weak drainage capacity, and non-reusability, which affect project progress and safety.
The road adopts a polygonal road structure, including the roadbed structure and precast concrete slabs. It utilizes trapezoidal interlocking and L-shaped hook design to achieve rapid assembly. Combined with permeable bricks and curbstone design, it enhances compressive strength and drainage performance, and alleviates waterlogging through green belts.
It enables rapid laying, improves compressive and displacement resistance, enhances drainage performance, extends service life, reduces construction leveling procedures, promotes rainwater infiltration, and the green belt design alleviates waterlogging.
Smart Images
Figure CN224092260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of temporary road structure technology, specifically to a polygonal road structure. Background Technology
[0002] In road construction projects, temporary roads are often built to meet traffic needs during construction and ensure smooth passage for personnel and vehicles both inside and outside the construction area. However, current temporary road construction methods, such as steel plate splicing, crushed stone roadbeds, or simple cast-in-place concrete, have some significant drawbacks:
[0003] 1. The laying of steel plates requires frequent adjustments to the flatness, while the curing period of cast-in-place concrete is long, which affects the progress of the project;
[0004] 2. Crushed stone roadbeds are prone to settlement and deformation, and the joints are prone to cracking, resulting in poor durability;
[0005] 3. Poor drainage capacity; hard paving blocks rainwater infiltration, easily causing water accumulation and safety hazards.
[0006] 4. It is not reusable. Cast-in-place concrete becomes construction waste after demolition, and steel plates are costly to recycle and are easily deformed.
[0007] Therefore, based on the above viewpoints, those skilled in the art provide a solution for a polygonal road structure. Utility Model Content
[0008] The purpose of this utility model is to provide a technical solution for a polygonal road structure to address the shortcomings mentioned in the background art. To overcome the drawbacks and defects described in the background art, this technical solution includes the following:
[0009] The roadbed structure includes a roadbed structure, on which a precast concrete slab is laid. The roadbed structure comprises the following components: a compacted soil cover layer laid on the ground, a stone powder layer covering the left side of the top surface of the soil cover layer, and a dry hard ash filling layer covering the right side of the top surface of the soil cover layer. A permeable brick is laid on the top surface of the dry hard ash filling layer. The left side of the permeable brick is covered with an inner curb stone, and the right side of the permeable brick is covered with an outer curb stone. The inner curb stone, the permeable brick, and the outer curb stone together form a sidewalk.
[0010] The precast concrete slab includes a left precast slab located on the left side, a right precast slab located on the right side, and a middle precast slab located between the left and right precast slabs. The interior of the left, middle, and right precast slabs is filled with steel mesh through a casting process.
[0011] The precast slab in the middle section includes a C30 concrete block, two left trapezoidal grooves on the left side of the C30 concrete block, and two right trapezoidal protrusions fixed on the right side of the C30 concrete block. The right trapezoidal protrusions can be engaged with the interior of the left trapezoidal grooves. An L-shaped slot is provided at the middle position of the top left side of the C30 concrete block, and an L-shaped hook plate is fixed at the middle position of the right side of the C30 concrete block. The L-shaped hook plate is engaged with the inner cavity of the L-shaped slot from top to bottom.
[0012] As a preferred embodiment of this utility model: the left side of the precast slab and the right side of the precast slab also have a left trapezoidal groove, and the right side of the precast slab and the right side of the precast slab also have a right trapezoidal protrusion.
[0013] As a preferred embodiment of this utility model: the left precast slab has an L-shaped hook plate at the middle right position, which is used to hook into the L-shaped slot inside the middle section precast slab.
[0014] As a preferred embodiment of this utility model: the left middle position of the right precast slab has an L-shaped slot for the L-shaped hook plate on the right side of the middle precast slab to be inserted.
[0015] As a preferred embodiment of this utility model, the top surfaces of the left precast slab, the middle precast slab, and the right precast slab are all flush with each other.
[0016] As a preferred embodiment of this utility model: the left side surface of the inner curbstone is provided with a notch for coupling and engaging the right trapezoidal protrusion on the right side of the right precast slab.
[0017] As a preferred embodiment of this utility model, the top surface of the permeable brick is higher than the top surfaces of the left precast slab, the middle precast slab, and the right precast slab.
[0018] As a preferred embodiment of this utility model: a green belt is planted on the right side of the permeable brick, and the inner curbstone and the outer curbstone are in close contact with the left and right sides of the permeable brick.
[0019] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0020] The prefabricated slabs in this design achieve rapid assembly through trapezoidal interlocking and L-shaped hooks. The flush tops reduce leveling steps and improve paving efficiency. The prefabricated slabs have built-in steel mesh, which, combined with mechanical interlocking and curbstone covering, enhances compressive and displacement resistance. Symmetrical prefabricated slabs support length extension, and the notches and protrusions of the curbstones couple to adapt to various road layouts. Permeable bricks are placed higher than the prefabricated slabs and are filled with a dry-hardened ash layer to promote rainwater infiltration. Combined with the green belt design, this alleviates waterlogging. The slab components rely on a double-locking design to extend their service life. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0022] Figure 1 This is a schematic diagram of the overall road structure;
[0023] Figure 2 This is a schematic diagram after the road structure has been decomposed.
[0024] Figure 3 This is a breakdown diagram of the lanes;
[0025] Figure 4 This is a schematic diagram of precast concrete slabs.
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. Subgrade structure; 11. Plain soil cover layer; 12. Inner curbstone; 13. Stone powder paving layer; 14. Permeable brick; 15. Outer curbstone; 16. Dry hard ash filling layer; 2. Precast concrete slab; 21. Left precast slab; 22. Middle precast slab; 221. C30 concrete block; 222. Right trapezoidal protrusion; 223. L-shaped hook plate; 224. L-shaped slot; 225. Left trapezoidal groove; 23. Reinforcing mesh; 24. Right precast slab. Detailed Implementation
[0028] To provide a clearer explanation and description of the technical solution and implementation of this utility model, several preferred specific embodiments for implementing the technical solution of this utility model are introduced below.
[0029] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of each embodiment. Specific details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures. The disclosures of various publications, patents, and published patent specifications cited herein are incorporated herein by reference in their entirety. The technical solutions of this utility model will be clearly and completely described below in conjunction with embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model.
[0030] The overall overview of the polygonal road structure is as follows:
[0031] It mainly consists of two parts: the roadbed structure (1) and the precast concrete slabs (2). The roadbed structure (1) serves as the basic support layer of the road, providing stability and durability through the compaction process. The precast concrete slabs (2) are laid on the roadbed structure (1) to form the surface layer for vehicles or pedestrians to pass through.
[0032] Detailed construction of the roadbed structure (1):
[0033] Plain soil cover layer (11): First, the ground is compacted, and then a layer of plain soil is laid as the bottom layer to disperse the load and enhance the bearing capacity of the foundation.
[0034] Inner curbstone (12): On the left side of the top surface of the soil cover layer (11), an inner curbstone (12) is installed along the edge of the road to define the boundary between the sidewalk and the roadway or green belt.
[0035] Stone powder paving layer (13): A layer of stone powder is laid on the non-pedestrian area on the top surface of the subgrade (11), i.e. outside the inner side of the inner curbstone (12), to improve the drainage performance and stability of the foundation.
[0036] Permeable bricks (14): A layer of permeable bricks (14) is laid in the sidewalk area (i.e., between the inner curbstone (12) and the outer curbstone (15)) to promote rainwater infiltration and reduce the pressure on the urban drainage system. The top surface of the permeable bricks (14) is designed to be slightly higher than the precast slab to highlight the distinction between the sidewalk and the driveway.
[0037] Outer curbstone (15): An outer curbstone (15) is installed on the right edge of the permeable brick (14) to further define the sidewalk boundary and serve as a barrier between the green belt or adjacent areas.
[0038] Dry hard ash filling layer (16): A layer of dry hard ash is laid on the non-permeable brick area on the top surface of the plain soil covering layer (11) as a leveling layer before the precast slab is laid, which can ensure that the installation of the precast slab can be relatively flat.
[0039] Detailed structure of precast concrete slab (2):
[0040] The precast concrete slab (2) consists of a left precast slab (21), a middle precast slab (22) and a right precast slab (24). Each precast slab is reinforced with a steel mesh (23) through a casting process to enhance structural strength and durability.
[0041] Mid-section precast slab (22):
[0042] C30 concrete block (221): The main body is made of C30 strength grade concrete to ensure sufficient load-bearing capacity.
[0043] Left trapezoidal groove (225) and right trapezoidal protrusion (222): Two trapezoidal grooves and protrusions are designed on the left and right sides of the C30 concrete block (221). The protrusions cooperate with the grooves of the adjacent precast slabs to achieve lateral connection and positioning, thereby enhancing the integrity and stability between the slabs.
[0044] L-shaped slot (224) and L-shaped hook plate (223): An L-shaped slot 224 is opened at the middle position of the top left side of the C30 concrete block (221), and an L-shaped hook plate 223 is fixed at the middle position of the right side. The L-shaped hook plate 223 is inserted into the L-shaped slot 224 of the adjacent precast slab from top to bottom to achieve longitudinal locking and prevent the slab from shifting in the vertical direction.
[0045] Left precast slab (21) and right precast slab (24):
[0046] Both have similar structures to the middle precast slab (22), but in order to adapt to the special needs of the road edge, their left or right edges are not provided with trapezoidal protrusions or grooves, but are directly connected to the designed curb stones or adjacent structures. At the same time, the right side of the left precast slab (21) is designed with an L-shaped hook plate 223, and the left side of the right precast slab (24) is designed with an L-shaped slot 224, so as to connect with the middle precast slab (22) or the adjacent right precast slab (24) / left precast slab (21).
[0047] The notch design of the inner curbstone (12): In order to maintain the continuity of the road structure, the left side surface of the inner curbstone (12) is specially provided with a notch to accommodate the trapezoidal protrusion on the right side of the right precast slab (24) to ensure the flatness and stability of the road edge.
[0048] Close contact between green belt and curbstone: Green belt is planted on the right side of permeable brick (14), and the inner curbstone (12) and outer curbstone (15) are in close contact with the left and right sides of permeable brick (14), which not only beautifies the environment, but also effectively prevents soil erosion.
[0049] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A polygonal road structure, comprising a roadbed structure (1), characterized in that: The top of the roadbed structure (1) is covered with precast concrete slabs (2). The roadbed structure (1) includes the following components: a compacted soil cover layer (11) laid on the ground, a stone powder paving layer (13) covering the left side of the top surface of the soil cover layer (11), and a dry hard ash filling layer (16) covering the right side of the top surface of the soil cover layer (11). A permeable brick (14) is laid on the top surface of the dry hard ash filling layer (16). The left side of the permeable brick (14) is covered with an inner curb stone (12), and the right side of the permeable brick (14) is covered with an outer curb stone (15). The inner curb stone (12), the permeable brick (14), and the outer curb stone (15) together form a sidewalk. The precast concrete slab (2) includes a left precast slab (21) on the left side, a right precast slab (24) on the right side, and a middle precast slab (22) between the left precast slab (21) and the right precast slab (24). The interior of the left precast slab (21), the middle precast slab (22) and the right precast slab (24) is filled with steel mesh (23) by a casting process. The precast slab (22) includes a C30 concrete block (221), two left trapezoidal grooves (225) on the left side of the C30 concrete block (221), and two right trapezoidal protrusions (222) fixed on the right side of the C30 concrete block (221). The right trapezoidal protrusions (222) can be inserted into the interior of the left trapezoidal grooves (225) for coupling. An L-shaped slot (224) is provided at the middle position of the top left side of the C30 concrete block (221), and an L-shaped hook plate (223) is fixed at the middle position of the right side of the C30 concrete block (221). The L-shaped hook plate (223) is inserted into the cavity of the L-shaped slot (224) from top to bottom.
2. A polygonal road structure according to claim 1, characterized in that: The left side of the precast slab (21) and the right side of the precast slab (24) also have a left trapezoidal groove (225), and the right side of the precast slab (21) and the right side of the precast slab (24) are also fixed with a right trapezoidal protrusion (222).
3. A polygonal road structure according to claim 1, characterized in that: The left precast slab (21) has an L-shaped hook plate (223) at the middle right position, which is used to hook into the L-shaped slot (224) inside the middle precast slab (22).
4. A polygonal road structure according to claim 1, characterized in that: The left middle position of the right precast slab (24) has an L-shaped slot (224) for the L-shaped hook plate (223) on the right side of the middle precast slab (22) to be inserted.
5. A polygonal road structure according to claim 1, characterized in that: The top surfaces of the left precast slab (21), the middle precast slab (22), and the right precast slab (24) are all flush with each other.
6. A polygonal road structure according to claim 1, characterized in that: The left side surface of the inner curbstone (12) has a notch for coupling and engaging the right trapezoidal protrusion (222) on the right side of the right precast slab (24).
7. A polygonal road structure according to claim 1, characterized in that: The top surface of the permeable brick (14) is higher than the top surfaces of the left precast slab (21), the middle precast slab (22) and the right precast slab (24).
8. A polygonal road structure according to claim 1, characterized in that: A green belt is planted on the right side of the permeable brick (14), and the inner curbstone (12) and the outer curbstone (15) are in close contact with each other and the left and right sides of the permeable brick (14).