CN220149998U - Stress absorbing layer bituminous pavement structure - Google Patents

Abstract

The utility model relates to the technical field of expressway construction, in particular to a stress absorbing layer asphalt pavement structure. The concrete layer is connected with the rubble layer through the pouring layer, and the asphalt layer is paved above the rubble layer. According to the utility model, the stress absorbing layer is arranged below the pavement, the stress absorbing layer is fixed with the brick retaining wall, the stress absorbing components are arranged on the two end faces of the stress absorbing layer through the concrete layer and the pouring layer, when the deformation phenomenon occurs above the pavement due to large traffic load or at the bottom of the pavement due to severe weather conditions, the stress absorbing layer can synchronously absorb the prestress applied to the top and the bottom of the stress absorbing layer through the elastic rubber strips.

Description

Stress absorbing layer bituminous pavement structure

Technical Field

The utility model relates to the technical field of expressway construction, in particular to a stress absorbing layer asphalt pavement structure.

Background

The highways are classified into five grades of highways, primary highways, secondary highways, tertiary highways and quaternary highways according to the use tasks, functions and adaptive traffic volumes, wherein the highways are roads which can adapt to the fact that the annual average day and night bus traffic volume is more than 25000 and are specially used for the lane-division high-speed running of automobiles and all control the access. Asphalt pavement refers to various types of pavement paved by mixing road asphalt materials into mineral materials, and the asphalt pavement can resist the damage of driving and natural factors to the pavement, so that the pavement is flat, less in dust, waterproof and durable. Therefore, asphalt pavement is one of the most widely used advanced pavements in expressway construction.

The Chinese patent with the publication number of CN213417456U discloses a stress absorbing layer asphalt pavement structure, which is provided with three layers of stress rubber asphalt layers, has good waterproof property and flexibility, can fill cracks to play a role in automatic repair so as to play a role in balancing, achieves the effects of stress and asphalt pavement maintenance, and can effectively improve the supporting strength of the asphalt pavement structure and ensure the integral stability of an asphalt pavement structure main body through a steel frame layer at the bottom end of a reinforcing seat.

However, the above-mentioned asphalt pavement structure can only counteract and maintain the prestress above the pavement, but under severe weather conditions, the corresponding expansion and contraction phenomenon of the foundation can occur in the interior of the asphalt pavement structure, and the situation can be aggravated to the pavement surface, so that the corresponding pavement is damaged.

Disclosure of Invention

Aiming at the problems in the background technology, a stress absorbing layer asphalt pavement structure is provided. Through being provided with the stress absorbing layer below the road surface, the stress absorbing layer is fixed with the brick retaining wall, and its both ends face is provided with the stress absorbing component through with concrete layer and pouring layer, and when the road surface top is because traffic load is great, or the road surface bottom appears the deformation phenomenon because the climatic conditions is abominable, can absorb in step through the elastic rubber strip, and the prestressing force that it receives from stress absorbing layer top and bottom.

The utility model provides a stress absorbing layer asphalt pavement structure which comprises a foundation, a stress absorbing layer, a concrete layer, a pouring layer and a gravel layer, wherein the foundation, the stress absorbing layer and the concrete layer are sequentially distributed from bottom to top, stress absorbing components are arranged at the top and the bottom of the stress absorbing layer, the stress absorbing layer is connected with the concrete layer and the foundation through the stress absorbing components, brick retaining walls are connected to two sides of the stress absorbing layer, the concrete layer is connected with the gravel layer through the pouring layer, and an asphalt layer is paved above the gravel layer.

The stress absorbing assembly comprises an absorbing shell, an elastic rubber strip, a bearing plate, a connecting plate and a reinforcing inclined plate, wherein the absorbing shell is arranged on a concrete layer and a foundation, the bearing plate is movably arranged on the inner side of the absorbing shell, the elastic rubber strip is arranged on one side of the bearing plate in a contact mode, the elastic rubber strip is connected with the inner wall of the absorbing shell, the connecting plate is connected with the other side of the bearing plate, the connecting plate is connected with the stress absorbing layer, and the reinforcing inclined plate is arranged on two sides of the connecting plate.

Preferably, a plurality of evenly distributed triangular connecting grooves are formed in the concrete layer, the triangular connecting grooves incline along two sides of a road, and connecting protrusions attached to the triangular connecting grooves are arranged at the bottom of the pouring layer.

Preferably, the top of brick block barricade both sides all is provided with rain-proof platform.

Preferably, a plurality of triangular reinforcing steel bars which are uniformly distributed are embedded in the middle of the stress absorbing layer.

Preferably, the stone layer comprises a connecting frame and a separation frame, and the separation frame is arranged on the inner side of the connecting frame.

Preferably, the separation frame comprises a plurality of transverse separation plates and a plurality of vertical separation plates, the transverse separation plates and the vertical separation plates are mutually perpendicular, the connecting frame is separated into a plurality of paving bins by the transverse separation plates and the vertical separation plates, and broken stones are paved in the paving bins.

Compared with the prior art, the utility model has the following beneficial technical effects: through being provided with the stress absorbing layer below the road surface, the stress absorbing layer is fixed with the brick barricade, its both ends face is provided with the stress absorbing component through with concrete layer and pouring the layer, utilize absorption shell, elastic rubber strip, the bearing plate, the cooperation of connecting plate and reinforcement swash plate, when the road surface top is great because traffic load, or the road surface bottom is because the adverse appearance deformation phenomenon of climatic conditions, can absorb in step through elastic rubber strip, its prestressing force that receives from stress absorbing layer top and bottom, avoid the road surface to appear damaged, improve holistic structural strength and stability.

Drawings

FIG. 1 is a schematic structural diagram of an asphalt pavement with a stress absorbing layer according to the present utility model;

FIG. 2 is a schematic diagram of the layered structure of FIG. 1;

FIG. 3 is a schematic view of a partial enlarged structure at A in FIG. 1;

fig. 4 is a schematic view of the separator shown in fig. 2.

Reference numerals: 1. a foundation; 2. a stress absorbing layer; 3. a concrete layer; 4. pouring a layer; 5. a crushed stone layer; 6. brick-built retaining wall; 7. an asphalt layer; 8. an absorption shell; 9. an elastic rubber strip; 10. a pressure bearing plate; 11. a connecting plate; 12. reinforcing the sloping plate; 13. a triangular connecting groove; 14. a connection protrusion; 15. a rain-proof table; 16. a connection frame; 17. a separation frame; 18. a transverse partition; 19. a vertical partition; 20. paving a bin; 21. triangular reinforcing bars.

Detailed Description

Example 1

As shown in fig. 1-3, the asphalt pavement structure with the stress absorbing layer provided by the utility model comprises a foundation 1, a stress absorbing layer 2 and a concrete layer 3 which are sequentially distributed from bottom to top, a pouring layer 4 and a gravel layer 5, wherein stress absorbing components are arranged at the top and the bottom of the stress absorbing layer 2, the stress absorbing layer 2 is connected with the concrete layer 3 and the foundation 1 through the stress absorbing components, brick retaining walls 6 are connected at two sides of the stress absorbing layer 2, the concrete layer 3 is connected with the gravel layer 5 through the pouring layer 4, and an asphalt layer 7 is paved above the gravel layer 5; the stress absorbing assembly comprises an absorbing shell 8, an elastic rubber strip 9, a bearing plate 10, a connecting plate 11 and a reinforcing inclined plate 12, wherein the absorbing shell 8 is arranged on a concrete layer 3 and a foundation 1, the bearing plate 10 is movably arranged on the inner side of the absorbing shell 8, the elastic rubber strip 9 is arranged on one side of the bearing plate 10 in a contact mode, the elastic rubber strip 9 is connected with the inner wall of the absorbing shell 8, the connecting plate 11 is connected with the other side of the bearing plate 10, the connecting plate 11 is connected with the stress absorbing layer 2, and the reinforcing inclined plate 12 is arranged on two sides of the connecting plate 11.

Further, a plurality of evenly distributed's triangle spread groove 13 have been seted up to concrete layer 3 top, and a plurality of triangle spread grooves 13 incline along the road both sides, and the bottom of pouring layer 4 is provided with the connection arch 14 of laminating with triangle spread groove 13, and in the whole road surface structure, concrete layer 3 played the supporting role, when pitch layer 7 top produced decurrent extrusion force because traffic load drives pouring layer 4, the lateral wall of triangle spread groove 13 can prevent pitch layer 7 to both sides removal.

Further, rain-proof platform 15 is all provided with at the top of brick block wall 6 both sides, during the use, avoids moisture to get into the prestressing force layer inside from both sides through rain-proof platform 15.

Further, the middle part of the stress absorbing layer 2 is embedded with a plurality of triangular reinforcing steel bars 21 which are uniformly distributed, and the structural strength of the stress absorbing layer 2 is improved through the triangular reinforcing steel bars 21.

The working principle of the utility model is as follows: when the road surface is used, when the vehicle wheel runs on the road surface, the asphalt layer 7 can improve the running comfort level, the pouring layer 4 and the concrete layer 3 can improve the overall supporting strength, when the road surface load is large, the load force can be transmitted to the concrete layer 3 one by one, the concrete layer 3 drives the absorption shell 8 to descend, the bearing plate is extruded through the elastic rubber strip 9 in the descending process, the downward stress is absorbed through the elastic rubber strip 9, and the elastic restoring force is utilized to further offset, and meanwhile, when the foundation 1 is influenced under the severe weather condition and then the upward stress is generated, the elastic rubber strip 9 at the bottom of the stress absorption layer 2 can absorb the upward stress, so that the road surface is prevented from being damaged, and the overall structural strength and stability are improved.

Example two

As shown in fig. 3-4, the asphalt pavement structure with a stress absorbing layer provided by the utility model further comprises, on the basis of the above embodiment, a gravel layer 5 including a connection frame 16 and a separation frame 17, wherein the separation frame 17 is arranged on the inner side of the connection frame 16, the separation frame 17 includes a plurality of transverse partition plates 18 and a plurality of vertical partition plates 19, the transverse partition plates 18 and the vertical partition plates 19 are mutually perpendicular, the connection frame 16 is divided into a plurality of paving bins 20 by the transverse partition plates 18 and the vertical partition plates 19, and gravels are paved in the paving bins 20.

In this embodiment, when laying the rubble, constitute separation frame 17 through a plurality of horizontal baffles 18 and a plurality of vertical baffle 19, lay the rubble in laying the storehouse 20, carry out regional spacing to the rubble through separation frame 17 and connecting frame 16, avoid the rubble to receive the load in top and take place the skew by a wide margin, guaranteed the stability of asphalt layer 7 bottom sprag.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims (6)

1. The utility model provides a stress absorbing layer bituminous pavement structure, a serial communication port, including foundation (1) that distributes in proper order from the bottom up, stress absorbing layer (2), concrete layer (3), pour layer (4) and rubble layer (5), stress absorbing layer (2) top and bottom all are provided with stress absorbing assembly, stress absorbing layer (2) are connected with concrete layer (3) and foundation (1) through stress absorbing assembly, both sides of stress absorbing layer (2) all are connected with bricked retaining wall (6), concrete layer (3) are connected with rubble layer (5) through pouring layer (4), asphalt layer (7) have been laid to rubble layer (5) top;

the stress absorbing assembly comprises an absorbing shell (8), an elastic rubber strip (9), a bearing plate (10), a connecting plate (11) and a reinforcing inclined plate (12), wherein the absorbing shell (8) is installed on a concrete layer (3) and a foundation (1), the bearing plate (10) is movably arranged on the inner side of the absorbing shell (8), the elastic rubber strip (9) is arranged on one side of the bearing plate (10) in a contact mode, the elastic rubber strip (9) is connected with the inner wall of the absorbing shell (8), the connecting plate (11) is connected with the other side of the bearing plate (10), the connecting plate (11) is connected with the stress absorbing layer (2), and the reinforcing inclined plate (12) is arranged on two sides of the connecting plate (11).

2. The asphalt pavement structure of a stress absorbing layer according to claim 1, wherein a plurality of evenly distributed triangular connecting grooves (13) are formed above the concrete layer (3), the plurality of triangular connecting grooves (13) incline along two sides of the road, and connecting protrusions (14) attached to the triangular connecting grooves (13) are arranged at the bottom of the pouring layer (4).

3. The asphalt pavement structure of a stress absorbing layer according to claim 1, wherein the top of both sides of the brick retaining wall (6) are provided with rain-proof tables (15).

4. The asphalt pavement structure of the stress absorbing layer according to claim 1, wherein a plurality of triangular reinforcing steel bars (21) which are uniformly distributed are embedded in the middle of the stress absorbing layer (2).

5. A stress absorbing layer asphalt pavement structure according to claim 1, characterized in that the crushed stone layer (5) comprises a connecting frame (16) and a partition frame (17), the partition frame (17) being provided on the inner side of the connecting frame (16).

6. The asphalt pavement structure of a stress absorbing layer according to claim 5, wherein the partition frame (17) comprises a plurality of transverse partition plates (18) and a plurality of vertical partition plates (19), the transverse partition plates (18) and the vertical partition plates (19) are mutually perpendicular, the transverse partition plates (18) and the vertical partition plates (19) divide the connecting frame (16) into a plurality of paving bins (20), and crushed stones are paved in the paving bins (20).