CN220813272U - Asphalt pavement cracking prevention structure - Google Patents

Abstract

The application discloses an asphalt pavement cracking prevention structure, and relates to the technical field of roads. The application comprises a foundation soil layer, wherein a rammed foundation layer is paved on the top of the foundation soil layer, a gravel layer is paved in the rammed foundation layer, an asphalt layer is paved on the top of the gravel layer, and a plurality of groups of connecting steel bars are uniformly distributed in the gravel layer. According to the application, through the cooperation of the gravel layer and the connecting steel bars, when the asphalt layer is subjected to external pressure, the pressure applied to the asphalt layer is buffered through the loose structure in the gravel layer, and meanwhile, the connecting strength between the asphalt layer and the inside of the gravel layer is effectively enhanced through cooperation of the connecting steel bars, so that the cracking resistance of the asphalt layer is improved.

Description

Asphalt pavement cracking prevention structure

Technical Field

The application relates to the technical field of roads, in particular to an asphalt pavement cracking prevention structure.

Background

Asphalt pavement refers to various types of pavement paved by incorporating road asphalt materials into mineral materials. The asphalt binder improves the capability of paving granules to resist damage to the road surface caused by driving and natural factors, so that the road surface is flat, less in dust, waterproof and durable. Accordingly, asphalt pavement is one of the most widely used advanced pavements in municipal road construction.

Compared with the thermal regeneration, the asphalt concrete pavement cold regeneration technology has good economic benefit and social benefit, has wide popularization and application space, is suitable for old oil way reconstruction engineering, is beneficial to saving resources and energy sources, saving construction period, improving highway engineering quality and prolonging service life.

Because the initial abrasion resistance and energy consumption of the cold recycled asphalt mixture are low, the pavement is easy to loose and damage under the action of traffic load, and cracks appear, so that the service life of the road is influenced.

Disclosure of utility model

The application aims at: the application provides an asphalt pavement cracking prevention structure, which aims to solve the problem that under the action of traffic load, the pavement is easy to loose and damage and crack, so that the service life of the pavement is influenced.

The application adopts the following technical scheme for realizing the purposes:

The utility model provides an asphalt pavement prevents structure of ftractures, includes basic soil layer, the rammed earth basic layer has been laid at basic soil layer's top, the gravel layer has been laid to rammed earth basic layer's inside, asphalt layer has been laid at the top of gravel layer, the inside evenly distributed of gravel layer has the multiunit connecting reinforcement.

Through adopting above-mentioned technical scheme, through setting up the cooperation use of rubble layer and connecting reinforcement for the pitch layer is when receiving external pressure, forms the buffering to the pressure that the pitch layer received through the inside loose structure of rubble layer, and the joint strength of pitch layer and rubble layer inside is effectively strengthened to the cooperation connecting reinforcement simultaneously, has so improved the crack resistance of pitch layer.

Further, a concrete layer is paved between the rammed ground base layer and the gravel layer, and a reinforcing steel wire mesh is fixedly connected inside the concrete layer.

Through adopting above-mentioned technical scheme, through setting up concrete layer and strengthening the cooperation of wire net and using, effectively improved the compressive property of road.

Further, the top symmetry of concrete layer is provided with the design brick layer, the design brick layer is installed between concrete layer and rubble layer.

Through adopting above-mentioned technical scheme, be convenient for realize the guide design to the asphalt layer through setting up the shaping brick layer, effectively reduced the asphalt layer and appear the condition of skew after long-time use.

Further, slots are symmetrically formed in the top of the concrete layer, and the bottom ends of the shaping brick layers are inserted into the slots.

Through adopting above-mentioned technical scheme, be convenient for take out between rammed ground layer and the gravel layer with shaping brick layer through setting up the slot to the section damage condition on gravel layer and asphalt layer is conveniently observed.

Further, a marking groove is formed in one side of the shaping brick layer.

Through adopting above-mentioned technical scheme, through setting up the sign groove be convenient for the staff judge which section pitch layer is inside to appear collapsing and damage fast.

Further, the inside symmetry of rammed ground basic unit has offered down the basin, down the basin is close to the one side of metalling and has offered the water seepage mouth, the inside fixedly connected with PE infiltration net of water seepage mouth.

Through adopting above-mentioned technical scheme, through setting up the cooperation of water seepage mouth and PE infiltration net and using, be convenient for guide into the inside discharge of lower basin with the rainwater of accumulation, effectively reduced the loss of gravel layer and pitch layer internal substance simultaneously.

Further, a plurality of fixing rods are uniformly arranged in the water seepage openings, and one side of each fixing rod is abutted to the PE water seepage net.

Through adopting above-mentioned technical scheme, through setting up the firm formula that PE oozes the water network has effectively been strengthened to the dead lever.

Further, the compacted foundation layer is provided in a U-shaped configuration.

Through adopting above-mentioned technical scheme, through setting up tamped basement layer for U type structure for concrete layer and rubble layer, asphalt layer pour into regular shape more easily, improved the holistic stability of road.

In summary, the present application includes at least one of the following beneficial effects:

1. Through setting up the cooperation use of rubble layer and connecting reinforcement for the pitch layer is when receiving external pressure, forms the buffering to the pressure that the pitch layer received through the inside loose structure of rubble layer, and the joint strength of pitch layer and rubble layer inside is effectively strengthened to the cooperation connecting reinforcement simultaneously, with this crack resistance who has improved the pitch layer.

2. Through setting up the infiltration mouth and being convenient for with the inside discharge of rainwater leading-in basin down, make the dead lever support PE infiltration net simultaneously and form a firm filter screen to make the rainwater that passes the infiltration mouth receive the filtration interception of PE infiltration net, with this accumulation of rainwater inside gravel layer and asphalt layer has effectively been reduced, has reduced the loss of gravel layer and asphalt layer internal matter simultaneously.

Drawings

Fig. 1 is a schematic perspective view of a device body according to the present application.

FIG. 2 is an exploded view of the internal structure of the compacted base course of the present application.

Fig. 3 is an exploded view of the internal structure of the crushed stone layer in the present application.

Fig. 4 is an exploded view of the internal structure of the reinforced steel wire mesh of the present application.

Fig. 5 is an exploded view showing the internal structure of the lower tank in the present application.

Reference numerals illustrate:

1. A foundation soil layer; 2. tamping the foundation layer; 3. a crushed stone layer; 4. an asphalt layer; 5. connecting steel bars; 6. a concrete layer; 7. reinforcing the steel wire mesh; 8. shaping a brick layer; 9. a slot; 10. a marking groove; 11. a water discharging tank; 12. a water seepage port; 13. PE water seepage net; 14. and a fixing rod.

Detailed Description

The application is described in further detail below with reference to fig. 1 to 5.

The embodiment of the application discloses an anti-cracking structure of an asphalt pavement.

Referring to fig. 1-3, the bituminous pavement cracking prevention structure comprises a foundation soil layer 1, a rammed ground layer 2 is laid at the top of the foundation soil layer 1, a gravel layer 3 is laid in the rammed ground layer 2, a bituminous layer 4 is laid at the top of the gravel layer 3, a plurality of groups of connecting steel bars 5 are uniformly distributed in the gravel layer 3, and polyester cracking resistant fibers are mixed in the gravel layer 3.

When the novel asphalt pavement structure is used, firstly, the gravel layer 3 is paved at the bottom of the asphalt layer 4, the asphalt layer 4 extrudes the gravel layer 3 when being subjected to external pressure, so that the internal stress of the gravel layer 3 slightly deforms, the asphalt layer 4 releases the born pressure through the loose gaps inside the gravel layer 3, and meanwhile, the connection strength between the gravel layer 3 and the asphalt layer 4 is effectively enhanced by arranging the polyester anti-cracking fibers and the connecting reinforcing steel bars 5, so that the anti-cracking performance of the asphalt layer 4 is effectively improved, and the service life of a road is prolonged.

Referring to fig. 2 and 4, a concrete layer 6 is laid between the compacted base layer 2 and the crushed stone layer 3, and a reinforcing steel wire mesh 7 is fixedly connected to the inside of the concrete layer 6, and the compacted base layer 2 is provided in a U-shaped structure.

When using, at first strengthened the inside joint strength of concrete layer 6 through setting up reinforcing wire net 7, when gravel layer 3 and pitch layer 4 received ambient pressure simultaneously for concrete layer 6 provides firm bottom sprag for gravel layer 3 and pitch layer 4, has effectively improved the compressive property of road.

Referring to fig. 1 and 2, a shaping brick layer 8 is symmetrically arranged at the top of a concrete layer 6, the shaping brick layer 8 is arranged between the concrete layer 6 and a gravel layer 3, slots 9 are symmetrically formed at the top of the concrete layer 6, the bottom end of the shaping brick layer 8 is inserted into the slots 9, and a marking groove 10 is formed in one side of the shaping brick layer 8.

When the pavement repair device is used, when the conditions of collapse, fracture, serious damage and the like occur in the asphalt layer 4 and the gravel layer 3, the pavement of the asphalt layer 4 is provided with the identification grooves 10, so that a worker can conveniently and rapidly judge a damaged road section, and then the shaping brick layers 8 on two sides of the damaged road section are manually pulled out from the interiors of the slots 9, so that the profile conditions of the damaged sections of the gravel layer 3 and the asphalt layer 4 can be conveniently observed, and the repair of the damaged road section can be conveniently and timely completed by the worker.

Referring to fig. 2 and 5, the lower water tank 11 is symmetrically arranged in the rammed ground base layer 2, the water seepage port 12 is arranged on one side of the lower water tank 11 close to the gravel layer 3, the PE water seepage net 13 is fixedly connected to the inside of the water seepage port 12, the plurality of fixing rods 14 are uniformly arranged in the water seepage port 12, and one side of each fixing rod 14 is abutted to the PE water seepage net 13.

When the utility model is used, when cracking appears in the inside of gravel layer 3 and asphalt layer 4 and the rainwater is accumulated, be convenient for discharge the inside of rainwater leading-in lower basin 11 through setting up the infiltration mouth 12, make dead lever 14 support PE infiltration net 13 form a firm filter screen simultaneously, and make the rainwater that passes infiltration mouth 12 receive PE infiltration net 13's filtration interception, with this effective accumulation that has reduced the rainwater in gravel layer 3 and asphalt layer 4 inside, reduced the loss of gravel layer 3 and asphalt layer 4 inside material simultaneously.

The implementation principle of the cracking prevention structure of the asphalt pavement of the embodiment is as follows: firstly, paving a gravel layer 3 at the bottom of an asphalt layer 4, so that the asphalt layer 4 presses the gravel layer 3 when being subjected to external pressure, the internal stress of the gravel layer 3 is slightly deformed, the asphalt layer 4 releases the born pressure through a loose gap in the gravel layer 3, and meanwhile, the connection strength between the gravel layer 3 and the interior of the asphalt layer 4 is effectively enhanced by arranging polyester anti-cracking fibers and connecting steel bars 5, so that the anti-cracking performance of the asphalt layer 4 is effectively improved;

Meanwhile, when cracks appear in the gravel layer 3 and the asphalt layer 4 and rainwater is accumulated, rainwater is conveniently led into the lower water tank 11 to be discharged through the water seepage port 12, meanwhile, the fixing rod 14 supports the PE water seepage net 13 to form a stable filter screen, and the rainwater passing through the water seepage port 12 is filtered and intercepted by the PE water seepage net 13, so that the accumulation of the rainwater in the gravel layer 3 and the asphalt layer 4 is effectively reduced, and the loss of substances in the gravel layer 3 and the asphalt layer 4 is reduced.

Claims (8)

1. Asphalt pavement cracking prevention structure, including basic soil layer (1), its characterized in that: the top of foundation soil layer (1) has laid rammed earth base layer (2), the inside of rammed earth base layer (2) has laid gravel layer (3), asphalt layer (4) have been laid at the top of gravel layer (3), the inside evenly distributed of gravel layer (3) has multiunit connecting reinforcement (5).

2. The asphalt pavement crack prevention structure according to claim 1, wherein: a concrete layer (6) is paved between the rammed ground layer (2) and the gravel layer (3), and a reinforced steel wire mesh (7) is fixedly connected inside the concrete layer (6).

3. The asphalt pavement crack prevention structure according to claim 2, wherein: the top symmetry of concrete layer (6) is provided with design brick layer (8), design brick layer (8) are installed between concrete layer (6) and rubble layer (3).

4. The asphalt pavement crack-preventing structure according to claim 3, wherein: the top of concrete layer (6) symmetry has seted up slot (9), the bottom of design brick layer (8) is inserted and is established in the inside of slot (9).

5. The asphalt pavement crack-preventing structure according to claim 3, wherein: one side of the shaping brick layer (8) is provided with a marking groove (10).

6. The asphalt pavement crack prevention structure according to claim 1, wherein: the inside symmetry of rammed ground basic unit (2) has offered down basin (11), down basin (11) are close to one side of gravel layer (3) and have been offered water seepage mouth (12), the inside fixedly connected with PE infiltration net (13) of water seepage mouth (12).

7. The asphalt pavement crack-resistant structure according to claim 6, wherein: a plurality of fixing rods (14) are uniformly arranged in the water seepage openings (12), and one side of each fixing rod (14) is abutted to the PE water seepage net (13).

8. The asphalt pavement crack prevention structure according to claim 1, wherein: the rammed ground base layer (2) is arranged to be of a U-shaped structure.