CN113322740B

CN113322740B - Reinforced asphalt concrete road and construction method thereof

Info

Publication number: CN113322740B
Application number: CN202110714951.5A
Authority: CN
Inventors: 王正波; 徐振刚
Original assignee: Jiangsu Guangwu Landscape Construction Co ltd
Current assignee: Jiangsu Guangwu Landscape Construction Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2022-07-26
Anticipated expiration: 2041-06-25
Also published as: CN113322740A

Abstract

The application relates to the field of reinforced asphalt concrete roads, in particular to a reinforced asphalt concrete road and a construction method thereof, which comprises a cushion layer, a base layer and a surface layer which are sequentially arranged, wherein a reinforcing piece is embedded in the base layer, the reinforcing piece comprises a plurality of layers of reinforcing mesh, connecting steel bars are welded at nodes between two adjacent layers of reinforcing mesh in a one-to-one correspondence manner, and a plurality of positioning rods used for inserting into the cushion layer are arranged on the reinforcing mesh. This application has the effect that reduces the road fracture, improves road life.

Description

Reinforced asphalt concrete road and construction method thereof

Technical Field

The application relates to the field of reinforced asphalt concrete roads, in particular to a reinforced asphalt concrete road and a construction method thereof.

Background

Currently, reinforced asphalt concrete roads include a road bed, a base layer made of asphalt concrete is laid on the road bed, and then a surface layer made of asphalt concrete is laid on the base layer to ensure the flatness of the whole road.

The old concrete pavement is reformed by directly using the original cement concrete pavement as a cushion layer of the asphalt concrete pavement, and arranging a base layer and a surface layer on the old cement concrete base layer to complete the white-black reformation so as to form a complete road.

The inventor finds that after a long time, the impact load caused by vehicle running on the pavement is transferred to the base layer to cause the base layer to crack, and further the pavement is easy to crack.

Disclosure of Invention

In order to improve the bearing capacity of road, reduce the road fracture, improve road life, this application provides a muscle asphalt concrete road.

The application provides a reinforced asphalt concrete road adopts following technical scheme:

the utility model provides a add muscle asphalt concrete road, is including bed course, basic unit and the surface course that sets gradually, it is equipped with the reinforcement to inlay in the basic unit, the reinforcement includes a plurality of layers of reinforcing bar net, and the node one-to-one welding between the adjacent two-layer reinforcing bar net has connecting reinforcement, the reinforcing bar is provided with a plurality of locating levers that are arranged in inserting the bed course on the net.

By adopting the technical scheme, after the positioning rod is inserted into the cushion layer, the base layer is poured on the cushion layer, so that the reinforcing mesh and the connecting steel bars are embedded in the base layer and integrally formed with the base layer, the reinforcing mesh and the connecting steel bars play a role in reinforcing the base layer, the base layer cracking situation is reduced, and the service life of a road is prolonged; meanwhile, the positioning rod is inserted in the cushion layer, so that the tightness of the connection between the reinforcing mesh layer and the cushion layer is further improved, and the occurrence of the condition that the cushion layer and the base layer are separated from each other is reduced.

Optionally, a limiting piece is arranged on the positioning rod, and a conical guide part is arranged at the bottom end of the positioning rod.

Through adopting above-mentioned technical scheme, the setting of guide part is convenient for insert the locating lever in the bed course, then makes spacing piece butt on the bed course surface to guarantee the degree of depth that the locating lever inserted in the bed course, in order to guarantee the position of reinforcing bar net, thereby guaranteed the reinforcing effect of reinforcing bar net to the basic unit.

Optionally, a plurality of ground grabbing holes are formed in the cushion layer, limiting piles embedded in the ground grabbing holes are arranged in the base layer, and the adjacent two ground grabbing holes are arranged in a mode that the inclination angles are opposite

Through adopting above-mentioned technical scheme, the vehicle is at the in-process of traveling, has all the time to play the supporting role to the base course with the spacing stake that vehicle advancing direction is opposite to reduce because the vehicle removes and forms the appearance of impact load and lead to the road surface condition of ftractureing to the road surface.

Optionally, the base layer is provided with a plurality of hollow steel pipes at equal intervals, one end of each hollow steel pipe extends into the cushion layer, the other end of each hollow steel pipe extends into the cushion layer, and the surface layer is provided with a hooking part filled in the hollow steel pipes.

By adopting the technical scheme, the hooking part penetrates through the base layer along with the hollow steel pipe and extends into the cushion layer, so that the connection stability among the cushion layer, the base layer and the surface layer is ensured; meanwhile, the hollow steel pipe per se also plays a certain supporting role on the road, so that the stability of the road is ensured.

Optionally, the part of the hollow steel pipe in the base layer is provided with an L-shaped hanging rod, and the reinforcing mesh is hung on the hanging rod.

By adopting the technical scheme, the reinforcing mesh is embedded on the hanging rod, so that the reinforcing mesh and the hollow steel pipe are connected together to improve the stability of the reinforcing mesh and the hollow steel pipe, and further the overall stability of the road is improved.

Optionally, the road sleeper stone is embedded in the roadbeds at two sides of the width direction of the road sleeper stone, and a butting portion perpendicular to the road sleeper stone is arranged on the side wall of the road sleeper stone far away from the cushion layer.

By adopting the technical scheme, the occurrence of edge breakage of the cushion layer, the base layer and the surface layer in the width direction can be reduced due to the arrangement of the road sleeper stones; meanwhile, the stability of the road sleeper stone is ensured by the arrangement of the abutting part.

Optionally, the abutting portion is provided with a drainage pipeline, and a drainage cover is laid on the road sleeper stone and the drainage pipeline.

Through adopting above-mentioned technical scheme for rivers on the road surface can be followed drainage pipe and discharged, reduce because of rainwater gathering back, the vehicle rolls repeatedly and leads to ponding department to produce the pot hole.

Optionally, a water blocking plate is arranged on one side, close to the cushion layer, of the road sleeper stone, the water blocking plate is inclined downwards in the direction close to the road sleeper stone, and a water through hole communicated with a drainage pipeline is formed in the road sleeper stone above the water blocking plate.

Through adopting above-mentioned technical scheme, rivers between sleeper stone and the road are discharged in can getting into drainage pipe from the limbers after the water blocking board interception, reduce the rainwater and lead to the road bed sediment in the road bed of below from the clearance department flow direction between road sleeper stone and the bed course to arouse the appearance of the road fracture condition.

On the other hand, the application also provides a construction method of the reinforced asphalt concrete road, which comprises the following steps of 1;

s1, compacting the roadbed, cleaning the roadbed surface, paving a cushion layer or planing the upper surface of cement concrete on the original road for 5-6cm, compacting the planed particles in situ by a grinding machine, and forming the cushion layer together with the un-planed concrete on the bottom layer;

s2, forming a plurality of ground grabbing holes at equal intervals on the cushion layer, embedding hollow steel pipes in the cushion layer, placing reinforcing members on the cushion layer, inserting positioning rods into the cushion layer, enabling the limiting pieces to abut against the upper surface of the cushion layer, and hanging a reinforcing mesh on hanging rods;

s3, pouring asphalt mixed soil on the cushion layer to form a base layer;

and S4, after the base layer is solidified and formed, pouring asphalt concrete doped with plastic particles on the base layer, and rolling the asphalt concrete by a rolling machine back and forth for 2 to 5 times to form a surface layer.

By adopting the technical scheme, the asphalt mixture collar soil is poured on the cushion layer to form the base layer, so that the asphalt concrete of the base layer is condensed with the reinforcing piece and the hollow steel pipe, the structural strength of the base layer is improved, and the occurrence of the tired condition of the base layer is reduced; pouring asphalt concrete doped with plastic particles on the base layer, and rolling back and forth for 2-5 times by using a rolling machine to form a surface layer so as to ensure the smoothness of the surface layer; meanwhile, the surface layer has certain elasticity due to the addition of the plastic particles, and the effect of absorbing and damping can be achieved, so that the cracking of the surface layer is reduced.

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

1. the arrangement of the reinforcing member increases the bearing capacity of the base layer, thereby reducing the occurrence of road cracking and prolonging the service life of the road;

2. the plastic particles are added into the surface layer in the road construction process, so that the elasticity of the surface layer can be increased, the surface layer can absorb certain impact load, and the service life of the road is prolonged.

Drawings

Fig. 1 is a schematic overall structure diagram of a reinforced asphalt concrete road according to an embodiment of the present application.

Fig. 2 is a cross-sectional view of a reinforced asphalt concrete road according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a reinforcement member in a reinforced asphalt concrete road according to an embodiment of the present application.

Fig. 4 is an exploded view of a reinforced asphalt concrete road according to an embodiment of the present application.

Description of reference numerals: 1. a cushion layer; 2. a base layer; 21. limiting piles; 3. a reinforcement; 31. a reinforcing mesh; 32. connecting reinforcing steel bars; 33. positioning a rod; 34. a limiting sheet; 35. a guide portion; 36. a limiting rod; 4. a surface layer; 41. a hooking part; 5. a hollow steel pipe; 51. grabbing a rod; 52. a hanging rod; 6. a road sleeper stone; 61. an abutting portion; 62. a water-stop plate; 63. a water drainage pipeline; 64. a drain cover; 65. a water hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses reinforced asphalt concrete road. Referring to fig. 1 and 2, the reinforced asphalt concrete road includes a mat layer 1 laid on a roadbed, and the mat layer 1 may be formed by sand-rolling or concrete road on the original road. A plurality of inclined downward ground grabbing holes are formed in the cushion layer 1 at equal intervals, the ground grabbing holes are arranged obliquely along the length direction of the cushion layer 1, and the inclination directions of two adjacent ground grabbing holes are opposite. A base layer 2 made of asphalt concrete is laid on the cushion layer 1, and the asphalt concrete flows into the ground grabbing holes in the laying process and is solidified and formed to form limiting piles 21 embedded in the ground grabbing holes, so that the stability of connection between the base layer 2 and the cushion layer 1 is ensured; simultaneously because grab the ground hole and set up each other crisscross, consequently every inclination who grabs the spacing stake 21 that the ground hole corresponds is also the same for the vehicle is at the in-process of traveling, has the spacing stake 21 opposite with vehicle advancing direction all the time to play the supporting role to basic unit 2, thereby reduces because the vehicle removes and leads to the appearance of road surface fracture condition to the road surface formation impact load.

Referring to fig. 2 and 3, a reinforcing member 3 for reinforcing the base layer 2 is also embedded in the base layer 2. Reinforcement 3 comprises two-layer mesh reinforcement 31, and the equal one-to-one in node of two-layer mesh reinforcement 31 is provided with the connecting reinforcement 32 that is used for connecting two mesh reinforcement 31, connects two-layer mesh reinforcement 31 through connecting reinforcement 32 promptly and fixes into three-dimensional steel reinforcement cage to make mesh reinforcement 31 play reinforced effect to basic unit 2, reduced the appearance of the 2 fracture circumstances of basic unit. Meanwhile, in order to ensure that the reinforcing mesh 31 is positioned at the center of the base layer 2 and the reinforcing effect of the reinforcing mesh 31 in the base layer 2 on the base layer 2 is not uniform due to the deviation of the reinforcing member 3, a positioning rod 33 which vertically faces downwards is fixed at a node of a reinforcement cage on one side close to the cushion layer 1, a limiting piece 34 is arranged on the positioning rod 33, a conical guide part 35 is arranged at one end, away from the support, of the positioning rod 33, the positioning rod 33 is inserted into the cushion layer 1 through the guide part 35, then the limiting piece 34 abuts against the surface of the cushion layer 1, and therefore the depth of the positioning rod 33 inserted into the cushion layer 1 is ensured, and the position of the reinforcing mesh 31 is ensured. Meanwhile, the arrangement of the positioning rods 33 further increases the tightness of the connection between the reinforcing mesh 31 layer and the cushion layer 1, thereby reducing the occurrence of the condition that the cushion layer 1 and the base layer 2 are separated from each other. The vertical position-limiting rods 36 are arranged on the layer of the reinforcing steel bars far away from the cushion layer 1, and the length of the position-limiting rods 36 is half of that of the connecting reinforcing steel bars 32, so that the separation of the part without the reinforcing mesh 31 and the part with the reinforcing mesh 31 on the upper part of the base layer 2 is reduced.

Referring to fig. 2 and 3, the surface layer 4 is arranged above the cushion layer 1, and the surface layer 4 is made of asphalt concrete added with plastic particles, so that the stability of the road is ensured, and meanwhile, the buffering and shock absorption effects are achieved, and the cracking condition of the road is reduced. In order to ensure the connection stability of the surface layer 4, the base layer 2 and the cushion layer 1, a plurality of hollow steel pipes 5 are arranged in the cushion layer 1, and each hollow steel pipe 5 penetrates through the base layer 2 and extends into the cushion layer 1. When the foreshadowing is pour to surface course 4, the asphalt concrete can be filled up hollow copper steel pipe and solidify the shaping and form and collude even portion 41, collude even portion 41 and follow hollow steel pipe 5 and run through basic unit 2 together and stretch into in the bed course 1 to guarantee the stability of being connected between bed course 1, basic unit 2 and the surface course 4 three. Meanwhile, the part of the hollow steel tube 5 extending into the cushion layer 1 is provided with a limiting rod 36 vertical to the axial direction of the hollow steel tube 5 so as to ensure the stability of the hollow steel tube 5. The hollow steel pipes 5 are provided with L-shaped hanging rods 52 at the parts thereof in the base layer 2, so that the reinforcing mesh 31 can be embedded in the hanging rods 52, and the reinforcing mesh 31 and the hollow steel pipes 5 are connected together to improve the stability of the two.

Referring to fig. 1 and 4, in order to reduce the occurrence of edge breakage in the width direction of the cushion layer 1, the base layer 2 and the surface layer 4, the two sides of the cushion layer 1 in the width direction are provided with the road sleeper stones 6, and the road sleeper stones 6 are embedded in the roadbed at an embedding depth of 50-60cm so as to ensure the stability of the road sleeper stones 6. The side wall of the side of the road sleeper stone 6 far away from the cushion layer 1 is provided with an abutting part 61 vertical to the road sleeper stone 6, and the abutting part is embedded in the roadbed so as to reduce the inclination and the toppling of the road sleeper stone 6. The abutting part 61 is provided with a drainage pipeline 63, a drainage cover 64 is paved on the road sleeper stone 6 and the drainage pipeline 63, and the drainage cover 64 is flush with the surface layer 4 or is about 2cm lower so as to ensure the normal drainage of water flow. In order to reduce the phenomenon that rainwater flows to a roadbed below from a gap between the road sleeper stone 6 and the cushion layer 1 to cause roadbed precipitation, so that the road cracks, a water baffle plate 62 embedded in the base layer 2 is arranged on one side, close to the cushion layer 1, of the road sleeper stone 6, the water baffle plate 62 is obliquely and downwards arranged towards the direction close to the road sleeper stone 6, and a water through hole 65 communicated with a drainage pipe 63 is formed in the road sleeper stone 6 above the water baffle plate 62, so that water between the road sleeper stone 6 and the road can enter the drainage pipe 63 from the water through hole 65 and be drained after being intercepted by the water baffle plate 62.

On the other hand, the application also provides a construction method of the reinforced asphalt concrete road, which comprises the following specific steps:

s1, compacting the roadbed, cleaning the roadbed surface, paving a cushion layer 1 or planing the upper surface of cement concrete on the original road by 5-6cm, compacting the planed particles in situ by a grinding machine, and forming the cushion layer 1 together with un-planed concrete on the bottom layer;

s2, burying road sleeper stones 6 in the roadbeds at the two sides of the width direction of the cushion layer 1;

s3, forming a plurality of ground grabbing holes at equal intervals on the cushion layer 1, embedding the hollow steel pipes 5 in the cushion layer 1, then placing the reinforcing members 3 on the cushion layer 1, inserting the positioning rods 33 into the cushion layer 1, enabling the limiting pieces 34 to abut against the upper surface of the cushion layer 1, and simultaneously hanging the reinforcing mesh 31 on the hanging rods 52;

s4, pouring asphalt mixture collar soil on the cushion layer 1 to form the base layer 2, so that the asphalt concrete of the base layer 2 is condensed with the reinforcing piece 3 and the hollow steel pipe 5, the structural strength of the base layer 2 is improved, and the occurrence of the base layer 2 is reduced.

S5, after the base layer 2 is solidified and formed, pouring asphalt concrete doped with plastic particles on the base layer 2, and rolling the mixture for 2 to 5 times by using a rolling machine to form a surface layer 4; in order to guarantee the planarization of surface course 4, the doping of plastic granules makes surface course 4 have certain elasticity simultaneously, can play the effect that absorbs the shock attenuation to reduce surface course 4 fracture.

S6, the drainage pipe 63 is installed on the abutting part 61, and the drainage cover 64 is laid above the drainage pipe 63, thereby completing the construction of the whole road.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A reinforced asphalt concrete road is characterized in that: the floor mat comprises a bed mat (1), a base layer (2) and a surface layer (4) which are sequentially arranged, wherein a plurality of obliquely arranged ground grabbing holes are formed in the bed mat (1), limiting piles (21) embedded in the ground grabbing holes are arranged in the base layer (2), and the inclination angles of two adjacent ground grabbing holes are oppositely arranged; a reinforcing piece (3) is embedded in the base layer (2), the reinforcing piece (3) comprises a plurality of layers of reinforcing mesh (31), connecting reinforcing steel bars (32) are welded at nodes between two adjacent layers of reinforcing mesh (31) in a one-to-one correspondence mode, and a plurality of positioning rods (33) used for being inserted into the cushion layer (1) are arranged on the reinforcing mesh (31); a limiting piece (34) is arranged on the positioning rod (33), and a conical guide part (35) is arranged at the bottom end of the positioning rod (33); a plurality of hollow steel pipes (5) are arranged in the base layer (2) at equal intervals, one ends of the hollow steel pipes (5) extend into the cushion layer (1), the other ends of the hollow steel pipes extend into the surface layer (4), and hook-connecting parts (41) filled in the hollow steel pipes (5) are arranged in the surface layer (4); the part of the hollow steel pipe (5) in the base layer (2) is provided with an L-shaped hanging rod (52), and the reinforcing mesh (31) is hung on the hanging rod (52).

2. A reinforced asphalt concrete road according to claim 1, wherein: the road sleeper stone is characterized by further comprising road sleeper stones (6) buried in the roadbed at two sides of the cushion layer (1) in the width direction, and abutting portions (61) perpendicular to the road sleeper stones (6) are arranged on the side wall, away from the cushion layer (1), of the road sleeper stones (6).

3. A reinforced asphalt concrete road according to claim 2, wherein: a drainage pipeline (63) is arranged on the abutting portion (61), and a drainage cover (64) is paved on the road sleeper stone (6) and the drainage pipeline (63).

4. A reinforced asphalt concrete road according to claim 3, characterized in that: road sleeper stone (6) are close to bed course (1) one side and are provided with water blocking plate (62), water blocking plate (62) are to being close to road sleeper stone (6) direction slope and set up downwards, set up limbers (65) with drainage pipe (63) intercommunication on road sleeper stone (6) of water blocking plate (62) top.

5. A construction method of a reinforced asphalt concrete road, to which the reinforced asphalt concrete road of claim 4 is applied, characterized in that: the method comprises the following steps:

s1, compacting the roadbed, cleaning the roadbed surface, paving a cushion layer (1) or planing the upper surface of cement concrete on the original road by 5-6cm, compacting the planed particles in situ by a grinding machine, and forming the cushion layer (1) together with un-planed concrete on the bottom layer;

s2, forming a plurality of ground grabbing holes at equal intervals on the cushion layer (1), embedding the hollow steel pipes (5) in the cushion layer (1), then placing the reinforcing members (3) on the cushion layer (1), inserting the positioning rods (33) into the cushion layer (1), enabling the limiting pieces (34) to abut against the upper surface of the cushion layer (1), and simultaneously hanging the reinforcing mesh (31) on the hanging rods (52);

s3, pouring asphalt concrete on the cushion layer (1) to form a base layer (2);

and S4, after the base layer (2) is solidified and molded, pouring asphalt concrete doped with plastic particles on the base layer (2), and rolling the base layer (2) back and forth for 2-5 times by using a rolling machine to form a surface layer (4).