A concrete slab macadam road structure

Abstract

The utility model relates to road structure technical field, especially a kind of concrete slab broken stone road structure, including concrete layer, it is characterized by: the broken stone layer is equipped below the concrete layer, the broken stone layer and the concrete layer are jointly equipped with anti-skid waste wood layer between, drainage structure is equipped in the broken stone layer, reinforcing structure is equipped in the concrete layer, the concrete slab broken stone road structure of the application is through multilayer composite design, realizes drainage, bearing and other multifunctional collaborative optimization. Broken stone layer is evenly dispersed load with high dense graded broken stone and enhances roadbed stability;Drainage blind ditch and drainage pipe linkage, helical hole+filter layer quickly guide and drain rainwater groundwater, avoid roadbed disease;Anti-skid waste wood layer increases friction, reduces noise;Embedded steel mesh improves the crack resistance of concrete layer;Waste wood recycling reduces cost and protects the environment, comprehensively improves road durability and safety.

Description

Technical Field

[0001] This utility model relates to the field of road structure technology, and in particular to a concrete slab gravel road structure. Background Technology

[0002] With the acceleration of urbanization and the increasing demand for transportation infrastructure construction, traditional road structures generally suffer from problems such as insufficient drainage efficiency, poor surface anti-skid performance, and uneven load-bearing. Especially in rainy areas or heavy traffic sections, these issues can easily lead to roadbed settlement, pavement cracking, and even safety hazards. Furthermore, existing road designs do not adequately utilize environmentally friendly materials, failing to meet the needs of sustainable development. While traditional concrete pavements offer high strength, they lack sound absorption and noise reduction capabilities, and their drainage systems are often of a single structure, making them prone to drainage failure due to siltation. Crushed stone base courses, while able to distribute loads, have a low surface friction coefficient, making them slippery in rainy weather. Concrete layers relying solely on steel reinforcement are costly and complex to construct.

[0003] Chinese patent discloses a concrete pavement structure (publication number: CN 209816584 U) including a concrete base layer and a surface layer laid on the concrete base layer. A plurality of piles are embedded in the concrete base layer, and a steel mesh is welded between the piles along the length direction. A pressure plate is laid above the piles between the concrete base layer and the surface layer, and the pressure plate is embedded in the concrete base layer. However, this pavement structure has obvious deficiencies in terms of multi-functional integration, environmental protection and long-term stability. Therefore, a concrete slab gravel pavement structure is needed. Utility Model Content

[0004] The purpose of this utility model is to address the significant shortcomings of existing technologies in terms of multifunctional integration, environmental friendliness, and long-term stability, and to propose a concrete slab gravel road structure.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A concrete slab gravel road structure, comprising a concrete layer, characterized in that: a gravel layer is provided below the concrete layer; an anti-slip waste wood layer is provided within the gravel layer and between the concrete layer; a drainage structure is provided within the gravel layer; and a reinforcement structure is provided within the concrete layer. Layered collaborative design: Through the composite structure of the concrete layer, gravel layer, and anti-slip layer, multiple objectives of load transfer, foundation stability, and surface function are achieved; Functional integration: Anti-slip, drainage, and reinforcement functions are integrated into a single road structure, reducing the complexity of layered construction.

[0006] Preferably, the drainage structure includes a multi-section drainage ditch set within the gravel layer, and the drainage ditch is connected to a drainage pipe. Through the coordinated design of the drainage ditch and the drainage pipe, the directional drainage of water inside the roadbed is achieved, avoiding local water accumulation; the multi-section drainage ditch can adapt to the drainage needs of different road sections and flexibly adapt to changes in terrain.

[0007] Preferably, the drainage ditch is a hollow tubular structure made of HDPE material, with spirally distributed drainage holes on the pipe wall. The diameter of the drainage holes is 8-12mm, and the spacing between the holes is 15-20mm. The outer wall of the drainage ditch is wrapped with a filter layer, which is a high-density geotextile with a unit area mass of 300-500g / m². The drainage pipe body is a round pipe made of HDPE material. The filter layer prevents soil from entering the drainage ditch, ensuring long-term unobstructed drainage. The spiral hole design enhances water flow guidance. Durability is guaranteed: HDPE material is corrosion-resistant and pressure-resistant, adaptable to long-term underground environments.

[0008] Preferably, the reinforcement structure includes a steel mesh embedded in the concrete layer, wherein the diameter of the steel bars in the steel mesh is 4-8 mm. The steel mesh disperses load stress, reduces the risk of concrete cracking, and extends the road's lifespan; the pre-embedding process simplifies the construction process and eliminates the need for an additional reinforcement layer.

[0009] Preferably, the surface of the anti-slip waste wood layer is provided with honeycomb-shaped sound-absorbing holes, with a hole diameter of 10-15mm, a hole depth of 5-8mm, and a porosity controlled at 30%-40%. The honeycomb holes increase surface friction (anti-slip) and absorb tire noise through the porous structure (noise reduction); the utilization of waste wood reduces resource waste and conforms to the concept of sustainable design.

[0010] Preferably, the crushed stone layer is composed of graded crushed stone with a particle size of 30-50mm, the compaction degree of the crushed stone layer is ≥95%, and its thickness is 150-250mm. The graded crushed stone evenly distributes pressure, and the high compaction degree avoids settlement and deformation, making it suitable for heavy traffic; the gaps between the crushed stones provide auxiliary drainage paths for drainage blind ditches, enhancing the overall drainage efficiency.

[0011] The advantages of this utility model are:

[0012] This application's concrete slab crushed stone pavement structure achieves synergistic optimization of drainage, load-bearing capacity, anti-skid properties, noise reduction, and environmental protection through a multi-layered functional composite design. The combination of the crushed stone layer and high-density graded crushed stone not only provides uniform load distribution but also enhances the overall stability of the roadbed through high compaction, effectively resisting settlement and deformation. The linkage system of drainage blind drains and drainage pipes forms an efficient water-conducting network, while the spirally distributed drainage holes and high-density geotextile filter layer ensure rapid drainage of rainwater and groundwater, avoiding problems such as frost heave and frost heave caused by roadbed water accumulation, and significantly improving road durability. The innovative application of the anti-slip recycled wood layer combines surface friction enhancement and sound absorption / noise reduction. The honeycomb porous structure increases the contact friction between the tire and the road surface, improving driving safety in rainy weather, while also absorbing noise generated by vehicles and improving the surrounding environment. The reinforced structure with embedded steel mesh further enhances the bending and crack resistance of the concrete layer, disperses the stress generated by vehicle loads, reduces the risk of road surface cracking, and extends the service life of the road. The environmentally friendly reuse of recycled wood not only reduces project costs but also reduces resource waste, aligning with the concept of green building. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the drainage structure of this utility model.

[0017] Figure 4 This utility model Figure 3 Enlarged view of I in the middle.

[0018] Figure 5 This is a schematic diagram of the internal structure of this utility model.

[0019] In the diagram: 1. Concrete layer; 2. Honeycomb sound-absorbing holes; 3. Anti-slip waste wood layer; 4. Crushed stone layer; 5. Drainage ditch; 6. Drainage pipe; 7. Filter layer; 8. Drainage hole; 9. Steel mesh. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. Example

[0021] Please see Figure 1-5 As shown, a concrete slab gravel pavement structure includes a concrete layer 1. Its features include: a gravel layer 4 beneath the concrete layer 1; an anti-slip waste wood layer 3 shared between the gravel layer 4 and the concrete layer 1; a drainage structure within the gravel layer 4; and a reinforcement structure within the concrete layer 1. Layered collaborative design: The composite structure of the concrete layer 1, gravel layer 4, and anti-slip layer achieves multiple objectives including load transfer, foundation stability, and surface functionality. Functional integration: Anti-slip, drainage, and reinforcement functions are integrated into a single road structure, reducing the complexity of layered construction.

[0022] In this embodiment, the drainage structure includes a multi-section drainage ditch 5 disposed within the gravel layer 4, and the drainage ditch 5 is connected to a drainage pipe 6. Through the coordinated design of the drainage ditch and the drainage pipe 6, the directional drainage of water inside the roadbed is achieved, avoiding local water accumulation; the multi-section drainage ditch can adapt to the drainage needs of different road sections and flexibly adapt to changes in terrain.

[0023] In this embodiment, the drainage ditch 5 is a hollow tubular structure made of HDPE material, with spirally distributed drainage holes 8 on the pipe wall. The diameter of the drainage holes 8 is 8-12mm, and the spacing between the holes is 15-20mm. The outer wall of the drainage ditch 5 is wrapped with a filter layer 7, which is a high-density geotextile with a unit area mass of 300-500g / m². The drainage pipe 6 is a round pipe made of HDPE material. The filter layer 7 prevents soil from entering the drainage ditch, ensuring long-term unobstructed drainage; the spiral hole design enhances water flow guidance; durability is guaranteed: HDPE material is corrosion-resistant and pressure-resistant, adaptable to long-term underground environments.

[0024] In this embodiment, the reinforcement structure includes a steel mesh 9 embedded in the concrete layer 1, wherein the diameter of the steel bars in the steel mesh 9 is 4-8 mm. The steel mesh 9 disperses load stress, reduces the risk of concrete cracking, and extends the road life; economic optimization: the pre-embedding process simplifies the construction process and eliminates the need for an additional reinforcement layer.

[0025] In this embodiment, the surface of the anti-slip waste wood layer 3 is provided with honeycomb-shaped sound-absorbing holes 2, with a hole diameter of 10-15mm, a hole depth of 5-8mm, and a porosity controlled at 30%-40%. The honeycomb holes increase surface friction (anti-slip) and absorb tire noise through the pore structure (noise reduction); the utilization of waste wood reduces resource waste and conforms to the concept of sustainable design.

[0026] In this embodiment, the crushed stone layer 4 is composed of graded crushed stone with a particle size of 30-50mm, the compaction degree of the crushed stone layer 4 is ≥95%, and its thickness is 150-250mm. The graded crushed stone evenly distributes the pressure, and the high compaction degree avoids settlement and deformation, making it suitable for heavy traffic; the gaps between the crushed stones provide auxiliary drainage paths for the drainage blind ditch 5, enhancing the overall drainage efficiency.

[0027] The implementation principle of this embodiment is as follows:

[0028] Load transfer and distribution: Vehicle loads are first applied to the concrete surface layer, and the steel mesh 9 evenly distributes the stress to avoid localized concentrated damage; the crushed stone layer 4 further distributes the load through the interlocking effect of graded crushed stone, transferring the pressure to the depth of the subgrade and preventing uneven settlement.

[0029] Drainage process: After rainwater or groundwater seeps into the gravel layer 4, it first enters the drainage blind ditch 5. The spiral drainage hole 8 guides the water flow to the drainage pipe 6. The filter layer 7 blocks the mud and sand from entering the pipe, ensuring smooth drainage. The drainage pipe 6 discharges the collected water out of the roadbed area to avoid the impact of water accumulation on the stability of the roadbed.

[0030] Anti-slip and noise reduction mechanism: The honeycomb holes of the anti-slip waste wood layer 3 increase the contact friction between the tire and the road surface, reducing the risk of slipping in rainy weather; the porous structure absorbs the noise generated by tire friction and vehicle vibration at the same time, reducing road noise pollution.

[0031] Long-term durability guarantee: The HDPE drainage blind ditch 5 and drainage pipe 6 are corrosion resistant and pressure resistant, and are suitable for long-term underground use; the high-compact crushed stone layer 4 and the reinforced concrete layer 1 reinforced with steel mesh 9 jointly resist the damage caused by vehicle loads and environmental factors (such as freeze-thaw and chemical erosion), extending the service life of the road.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A concrete slab gravel road structure, comprising a concrete layer (1), characterized in that... Below the concrete layer (1) is a crushed stone layer (4), and between the crushed stone layer (4) and the concrete layer (1) is a non-slip waste wood layer (3). The crushed stone layer (4) is equipped with a drainage structure, and the concrete layer (1) is equipped with a reinforcement structure. The drainage structure includes a multi-section drainage blind ditch (5) set in the crushed stone layer (4), and the drainage blind ditch (5) is connected to a drainage pipe (6). The reinforcement structure includes a steel mesh (9) embedded in the concrete layer (1), and the steel bars of the steel mesh (9) have a diameter of 4-8 mm.

2. The concrete slab gravel road structure according to claim 1, characterized in that: The drainage ditch (5) is a hollow tubular structure made of HDPE material, with spirally distributed drainage holes (8) on the pipe wall. The diameter of the drainage holes (8) is 8-12mm and the spacing between the holes is 15-20mm. The outer wall of the drainage ditch (5) is wrapped with a filter layer (7), which is a high-density geotextile with a unit area mass of 300-500g / m². The drainage pipe (6) is a round pipe made of HDPE material.

3. The concrete slab gravel road structure according to claim 1, characterized in that: The surface of the anti-slip waste wood layer (3) is provided with honeycomb-shaped sound-absorbing holes (2), with a hole diameter of 10-15mm, a hole depth of 5-8mm, and a porosity controlled at 30%-40%.

4. The concrete slab gravel road structure according to claim 1, characterized in that: The crushed stone layer (4) is composed of graded crushed stone with a particle size of 30-50mm, the compaction degree of the crushed stone layer (4) is ≥95%, and its thickness is 150-250mm.

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