Anti-cracking structure of asphalt road
By introducing a foamed glass layer, anchoring mechanism and drainage mechanism into asphalt roads, the problem of cracks on asphalt roads caused by temperature changes and vehicle loads was solved, and the stability and durability of the roads were improved.
Patent Information
- Application Number
- CN202422676871.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-04
AI Technical Summary
Asphalt roads are prone to developing small cracks under long-term exposure to sunlight, rain, and vehicle rolling, causing rainwater to seep into the roadbed, causing expansion, contraction, and settlement, affecting the stability and durability of the road.
An anti-cracking structure is adopted, which includes a base layer, a crushed stone layer, an asphalt layer, a foamed glass layer, an anchoring mechanism and a drainage mechanism. The foamed glass layer reduces temperature fluctuations, the anchoring mechanism disperses the load, and the drainage mechanism removes accumulated water, thereby enhancing the road's load-bearing capacity and stability.
Effectively prevent the generation and expansion of road cracks, improve the durability and service life of the road, reduce the impact of load on the subbase, enhance drainage efficiency, reduce water damage, and improve the overall stability and bearing capacity of the road.
Smart Images
Figure CN223317015U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of road structures, in particular to an anti-cracking structure for an asphalt road. Background Art
[0002] Asphalt roads are various types of roads paved with mineral materials mixed with road asphalt. The asphalt binder improves the paving aggregate's ability to withstand damage from traffic and natural factors, making the pavement durable. Therefore, asphalt roads are a widely used method in road construction.
[0003] However, although asphalt roads are more durable than ordinary concrete roads, small cracks will still appear on the surface of asphalt roads due to long-term exposure to sunlight and rain and repeated rolling of vehicles. Rainwater can easily seep into the roadbed along the cracks, causing the roadbed to expand, shrink, crack and settle. Utility Model Content
[0004] The purpose of this utility model is to address the above-mentioned technical problems and provide an anti-cracking structure for asphalt roads, so that the roadbed has a greater load-bearing capacity and stability, can maintain stability after being subjected to rain, temperature changes and vehicle pressure, and prevent the generation and expansion of road cracks, thereby improving the durability and life of the road.
[0005] The purpose of the utility model is achieved as follows: an anti-cracking structure for an asphalt road, comprising a subbase and a crushed stone layer arranged above the subbase, and further comprising:
[0006] an asphalt layer, disposed above the crushed stone layer;
[0007] a foamed glass layer disposed between the asphalt layer and the crushed stone layer;
[0008] An anchoring mechanism, the anchoring mechanism comprising a plurality of rods, one end of the rods being inserted into the subbase layer and the other end being inserted into the gravel layer, the plurality of rods being arranged in an array in the subbase layer and the gravel layer;
[0009] The drainage mechanism is arranged on both sides of the asphalt layer.
[0010] The utility model is further configured as follows: the anchoring mechanism further includes:
[0011] A fixing groove is provided on the base layer, the insertion rod is inserted into the fixing groove, and the fixing groove is filled with concrete.
[0012] The utility model is further configured as follows: an anti-cracking sticker is provided at the bottom of the asphalt layer, one end of the anti-cracking sticker is in contact with the asphalt layer, and the other end is in contact with the foamed glass layer.
[0013] The utility model is further configured as follows: a road reinforcement net is provided in the asphalt layer.
[0014] The utility model is further configured as follows: the drainage mechanism includes:
[0015] Drainage grooves are arranged on both sides of the asphalt layer.
[0016] The utility model is further configured as follows: the drainage mechanism further includes:
[0017] A drainage pipe is arranged in the gravel layer, one end of the drainage pipe is inserted into the gravel layer, and the other end extends to the drainage trough.
[0018] The utility model is further configured as follows: a through hole is provided on the drain pipe.
[0019] By adopting the above technical solution, the utility model has at least the following beneficial effects:
[0020] 1. By setting a foamed glass layer at the bottom of the asphalt layer, the foamed glass layer has good thermal insulation properties, which can reduce the temperature fluctuations on the road surface and effectively prevent the road surface from cracking due to temperature changes. At the same time, the foamed glass layer is light in weight, which can reduce the load on the subbase and reduce the risk of settlement and deformation of the road subbase, thereby preventing cracks in the road surface.
[0021] 2. Through the setting of the anchoring mechanism, multiple rods are inserted into the subbase and gravel layer, which can effectively disperse the load transmitted downward by vehicles when passing through the road surface, and improve the longitudinal strength and stiffness of the subbase and gravel layer. The rods are inserted into the fixed grooves, and the fixed grooves are filled with concrete to prevent the rods from tilting after being loaded, effectively improving the stability of the rods, thereby improving the bearing capacity of the asphalt road and enhancing the anti-cracking ability of the asphalt road.
[0022] 3. Through the installation of drainage structures, drainage grooves are set up on both sides of the asphalt layer. Water accumulated on the road surface can flow out of the road surface through the drainage grooves, reducing the infiltration of water into the asphalt layer and causing damage to the subbase. Drain pipes are set up in the gravel layer. The gravel layer can disperse the load on the drainage pipes, improving their durability and stability. The drainage pipes are equipped with through holes to enhance the drainage efficiency of the drainage pipes, quickly draining accumulated water, preventing excessive water accumulation inside the road structure from causing damage, and effectively preventing road cracking caused by accumulated water. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the anti-cracking structure of the asphalt road of the utility model;
[0024] Figure 2 It is an enlarged view of part A of the present utility model;
[0025] Figure 3This is a cross-sectional view of the anti-cracking structure of the asphalt road of the utility model;
[0026] Figure 4 It is an enlarged view of part B of the present utility model;
[0027] Figure 5 It is a schematic diagram of the drainage pipe of the utility model;
[0028] The reference numerals in the figure are: 1-asphalt layer, 2-foamed glass layer, 5-gravel layer, 6-base layer, 7-anti-cracking patch, 8-road reinforcement mesh, 31-insertion rod, 32-fixing groove, 41-drainage groove, 42-drainage pipe, 43-through hole. DETAILED DESCRIPTION
[0029] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.
[0030] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further described in subsequent figures.
[0031] The present invention will be further described below with reference to specific embodiments of the present invention. Figure 1-5 :
[0032] Example 1:
[0033] This embodiment provides an anti-cracking structure for an asphalt road, comprising a subbase layer 6 and a crushed stone layer 5 disposed above the subbase layer 6, and further comprising:
[0034] Asphalt layer 1, provided above crushed stone layer 5;
[0035] The foamed glass layer 2 is provided between the asphalt layer 1 and the crushed stone layer 5;
[0036] Anchoring mechanism, the anchoring mechanism includes a plurality of rods 31, one end of the rod 31 is inserted into the base layer 6, and the other end is inserted into the gravel layer 5, and the plurality of rods 31 are arranged in an array in the base layer 6 and the gravel layer 5;
[0037] The drainage mechanism is arranged on both sides of the asphalt layer 1.
[0038] like Figure 1-4 As shown, the subbase layer 6 is mainly used for bearing and distributing loads, and the gravel layer 5 can fill the gaps in the road structure, improve the bearing capacity and crack resistance of the road surface, and absorb the vibration and noise between the wheels and the road surface, thereby improving the driving comfort of the vehicle.
[0039] An asphalt layer 1 is applied to the top of the road, directly contacting the top of the asphalt layer with vehicles. A foamed glass layer 2 is applied beneath it. Made from cullet and a foaming agent, it offers strong thermal insulation, low thermal conductivity, long-term stability, and is less susceptible to environmental influences. This layer effectively reduces heat transfer to the road surface, lowering its temperature. This mitigates road deformation and cracking caused by high temperatures, effectively improving the durability and service life of the road.
[0040] Foamed glass has a closed pore structure that does not absorb water or become soaked, and has strong waterproof properties. It can effectively prevent moisture from penetrating into the pavement structure, reducing road damage caused by water damage, improving the road's waterproof performance and stability, and thus enhancing the road's crack resistance.
[0041] The foamed glass layer 2 is relatively light in weight, which can reduce the load on the subbase layer 6 and the risk of settlement and deformation of the road subbase layer 6, thereby preventing cracks from occurring in the road surface.
[0042] One end of the rod 31 is inserted into the base layer 6, and the other end is inserted into the gravel layer 5. Multiple rods 31 are arranged in an array in the base layer 6 and the gravel layer 5. The cooperation of multiple rods 31 can improve the longitudinal strength and rigidity of the base layer 6 and the gravel layer 5, effectively disperse the load transmitted downward when the vehicle passes through the road surface, thereby enhancing the overall bearing capacity and structural strength of the road.
[0043] Furthermore, the arrangement of multiple insertion rods 31 can adjust the density of the base layer 6 and the gravel layer 5, reduce stress concentration caused by uneven road surface, thereby reducing the generation and spread of road cracks and improving the stability and durability of the road surface.
[0044] The insert rod 31 is made of steel with a surface treated for corrosion resistance. The steel has high compressive and tensile strength and a long service life, and can effectively improve the durability of the asphalt road.
[0045] The drainage mechanism is arranged on both sides of the asphalt layer 1, and can guide water into the drainage mechanism when it rains, so as to prevent water accumulation on the road surface from causing the asphalt layer 1 to soften and crack, thereby affecting the stability of the road surface.
[0046] Example 2:
[0047] This embodiment provides an anti-cracking structure for an asphalt road, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0048] The anchoring mechanism also includes:
[0049] The fixing groove 32 is provided on the base layer 6 , the insertion rod 31 is inserted into the fixing groove 32 , and the fixing groove 32 is filled with concrete.
[0050] like Figure 1-4 As shown, the fixing groove 32 is arranged at one end of the base layer 6 facing the gravel layer 5. The fixing groove 32 cooperates with the concrete. The concrete can fill the gap between the insertion rod 31 and the insertion rod 31 groove, fix the insertion rod 31 in the fixing groove 32, improve the stability of the insertion rod 31, and thus improve the integrity and durability of the anchoring mechanism.
[0051] It can also prevent the rod 31 from moving or tilting when bearing a load, and improve the pull-out resistance of the rod 31, thereby maintaining the integrity and durability of the anchoring mechanism.
[0052] like Figure 1-4 As shown, an anti-cracking sticker 7 is provided at the bottom of the asphalt layer 1 , one end of the anti-cracking sticker 7 contacts the asphalt layer 1 , and the other end contacts the foamed glass layer 2 .
[0053] Laying the anti-cracking tape 7 at the bottom of the asphalt layer 1 can enhance the overall stability of the pavement structure and improve the road's tensile, shear, and compressive resistance. The anti-cracking tape 7 has strong bonding ability, bonding the foamed glass layer 2 to the asphalt layer 1 and improving the load-bearing capacity of the foamed glass layer 2 and the asphalt layer 1.
[0054] The anti-crack patch 7 has viscoelasticity and a certain degree of flexibility, which can absorb the tensile energy at the cracks and relieve the stress concentration phenomenon at the cracks. When cracks appear on the road surface, the anti-crack patch 7 can quickly fill the cracks and limit the further development of the crack width.
[0055] The anti-cracking sticker 7 has water-proof and anti-seepage capabilities, and can cooperate with the foamed glass layer 2 to effectively block the infiltration of surface water on the road, preventing moisture from penetrating into the base layer 6 and the gravel layer 5, thereby reducing the occurrence of water damage to the road surface.
[0056] A road reinforcement mesh 8 is provided in the asphalt layer 1 .
[0057] like Figure 1-4As shown, the road reinforcement mesh 8 is arranged in the asphalt layer 1. The road reinforcement mesh 8 can disperse the load and reduce the concentration of stress, reduce the deformation and damage of the road surface, and the road reinforcement mesh 8 has strong crack resistance, which can effectively reduce the generation and expansion of road cracks and improve the durability and stability of the asphalt road.
[0058] Example 3:
[0059] This embodiment provides an anti-cracking structure for an asphalt road, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0060] Drainage mechanisms include:
[0061] The drainage grooves 41 are provided on both sides of the asphalt layer 1 .
[0062] like Figure 1-2 As shown, the top of the asphalt layer 1 is slightly inclined toward the two sides of the drainage groove 41, and the middle part of the top of the asphalt layer 1 is higher than the two sides, which can effectively prevent water accumulation on the road surface. During precipitation, rainwater will flow directly from the road surface to the drainage groove 41, effectively improving the drainage capacity of the drainage mechanism, while reducing water accumulation on the road surface and reducing the occurrence of water damage to the road surface.
[0063] The inner wall of the drainage ditch 41 is coated with a waterproof coating to form a waterproof layer, which can prevent water from penetrating into the gravel layer 5 and the base layer 6 through the inner wall of the waterproof ditch and affecting the stability of the road surface.
[0064] The drainage pipe 42 is disposed in the gravel layer 5 , with one end of the drainage pipe 42 inserted into the gravel layer 5 and the other end extending toward the drainage trough 41 .
[0065] like Figure 1-5 As shown, a drainage pipe 42 is disposed within the gravel layer 5 , one end of which is connected to the drainage trough 41 . The drainage pipe 42 can drain the accumulated water that seeps down from the road surface into the drainage trough 41 , effectively removing the accumulated water within the road, helping to prevent the subbase layer 6 from softening or deforming due to excessive moisture, thereby enhancing the overall stability of the road, reducing road surface settlement and deformation, and extending the service life of the road.
[0066] The drainage pipe 42 is arranged in the gravel layer 5. The gravel layer 5 can disperse the load of the road surface on the drainage pipe 42, reduce the direct pressure of the road surface on the drainage pipe 42, and at the same time simplify the construction process and facilitate maintenance.
[0067] The drain pipe 42 and the insertion rod 31 are staggered to prevent the drain pipe 42 and the insertion rod 31 from interfering with each other.
[0068] The drain pipe 42 is provided with a through hole 43 .
[0069] like Figure 1-5As shown, the provision of through holes 43 enables better contact and exchange between the drain pipe 42 and the water in the gravel layer 5, thereby accelerating the drainage of water. During rainfall or water accumulation, these through holes 43 allow water to flow more quickly into the drain pipe 42 and drain smoothly along the pipe, effectively reducing water accumulation on the road surface. This improves drainage efficiency and ensures road safety.
[0070] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.
Claims
1. An anti-cracking structure for an asphalt road, comprising a subbase (6) and a crushed stone layer (5) arranged above the subbase (6), characterized in that: Also includes: an asphalt layer (1) disposed above the crushed stone layer (5); A foamed glass layer (2) is provided between the asphalt layer (1) and the crushed stone layer (5); An anchoring mechanism, the anchoring mechanism comprising a plurality of insertion rods (31), one end of the insertion rods (31) being inserted into the base layer (6) and the other end being inserted into the gravel layer (5), the plurality of insertion rods (31) being arranged in an array within the base layer (6) and the gravel layer (5); Drainage mechanisms are provided on both sides of the asphalt layer (1).
2. The anti-cracking structure for asphalt roads according to claim 1, characterized in that: The anchoring mechanism further comprises: A fixing groove (32) is provided on the base layer (6), the insertion rod (31) is inserted into the fixing groove (32), and the fixing groove (32) is filled with concrete.
3. The anti-cracking structure for asphalt roads according to claim 1, characterized in that: An anti-cracking sticker (7) is provided at the bottom of the asphalt layer (1); one end of the anti-cracking sticker (7) is in contact with the asphalt layer (1), and the other end is in contact with the foamed glass layer (2).
4. The anti-cracking structure for asphalt roads according to claim 3, characterized in that: A road reinforcement net (8) is provided in the asphalt layer (1).
5. The anti-cracking structure for asphalt roads according to claim 1, characterized in that: The drainage mechanism comprises: Drainage grooves (41) are provided on both sides of the asphalt layer (1).
6. The anti-cracking structure for asphalt roads according to claim 5, characterized in that: The drainage mechanism further comprises: A drainage pipe (42) is provided in the gravel layer (5), one end of the drainage pipe (42) is inserted into the gravel layer (5), and the other end extends toward the drainage trough (41).
7. The anti-cracking structure for asphalt roads according to claim 6, characterized in that: The drain pipe (42) is provided with a through hole (43).