CN214061105U

CN214061105U - Cold regeneration road surface structure of environmental protection

Info

Publication number: CN214061105U
Application number: CN202022984713.XU
Authority: CN
Inventors: 季晓丽; 李熙
Original assignee: Shanghai Liyang Road Reinforcement Technology Co ltd
Current assignee: Shanghai Liyang Road Reinforcement Technology Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-08-27
Anticipated expiration: 2030-12-09

Abstract

The utility model discloses an environmental protection cold regeneration road surface structure, including bed course and reinforcing apparatus, the utility model discloses a set up metal crate, slip casting back up coat, metalling, rubber asphalt stress absorbing layer and waterproof layer, solved the easy problem that splits and easily sink in road surface. Under the cooperation of the metal frame and the grouting reinforcement layer, the bearing capacity of the pavement is enhanced, the pavement is prevented from sinking, meanwhile, the grouting reinforcement layer arranged in the middle of the metal frame can also enhance the bearing capacity, under the cooperation of the gravel layer and the rubber asphalt stress absorption layer, the crack resistance of the pavement is enhanced, and meanwhile, the waterproof layer is arranged, so that the pavement is waterproof, the crack resistance is further improved, and the advantages of pavement crack resistance and bearing capacity enhancement are achieved.

Description

Cold regeneration road surface structure of environmental protection

Technical Field

The utility model particularly relates to an environmental protection cold regeneration road surface structure relates to the relevant field of road surface structure.

Background

Road construction and maintenance are industries with high resource occupation, high energy consumption and high carbon emission, and are one of the key fields of national energy conservation and emission reduction. The emission of solid waste resources in the road maintenance process seriously influences the construction of resource-saving and environment-friendly traffic industries. The annual road solid material in China reaches billions of tons, and the comprehensive recycling utilization rate is only about 30 percent. Therefore, the highway maintenance management urgently needs to change a development mode, abandons the traditional maintenance construction method, develops new processes such as preventive maintenance and recycling, and promotes the technical progress of the highway maintenance management.

The cold regeneration technology is that cold regeneration equipment is adopted to break the existing road surface and partial base course, mix in situ, add aggregate (optional) and curing agent (cement or emulsified asphalt, etc.) in the stirring process, properly add water and then compact, so that the mixture reaches the optimal compaction state, and after curing, a semi-rigid state similar to a cement stabilized macadam base course is formed. And (5) paving an asphalt concrete surface layer after spraying the permeable layer to form a final pavement structure. The technology can well realize the reutilization of resources, saves the material transfer cost, has low energy consumption and little environmental pollution, and is an environment-friendly technology.

When the road is subjected to regeneration maintenance, the reasonable pavement structure design has very important significance for prolonging the service life of the maintained road and improving the overall quality of the pavement of the road.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above problems, the present invention provides an environment-friendly cold recycling pavement structure.

The utility model discloses a realize like this, construct an environmental protection cold regeneration road surface structure, the device includes bed course and reinforcing apparatus, the bed course top is provided with the subbase, reinforcing apparatus sets up inside the surface course down, reinforcing apparatus includes metal crate, slip casting back up coat, metalling, rubber asphalt stress absorbing layer, mixture upper strata, mixture lower strata, waterproof layer and fastener, metal crate front and back both sides are passed through the fastener and are pegged graft fixedly with cold regeneration basic unit to the metal crate middle part is provided with the slip casting back up coat, both sides are provided with the metalling about the slip casting back up coat, the metalling outside is provided with rubber asphalt stress absorbing layer, the rubber asphalt stress absorbing layer outside is connected with mixture upper strata and mixture lower surface course respectively, the waterproof layer sets up in the metal crate top.

Preferably, the fastener includes interface, bolt and anchor strut, the interface is seted up in the metal crate left and right sides to interface inside threaded connection has the bolt, the anchor strut is fixed with in the inside grafting of bolt.

Preferably, the waterproof layer comprises a composite anti-cracking sticker and a waterproof anti-cracking layer, and the composite anti-cracking sticker and the waterproof anti-cracking layer are mutually stuck and fixed.

Preferably, a cold regeneration base layer is installed at the top of the subbase layer, a lower surface layer is arranged at the top of the cold regeneration base layer, and the top of the lower surface layer is connected with the upper surface layer.

Preferably, the metal frame is integrally in a well shape, and the left side and the right side of the metal frame are respectively connected with the cold regeneration base layer, the lower surface layer and the upper surface layer.

Preferably, the gravel layer and the rubber asphalt stress absorbing layer are symmetrically arranged up and down along the grouting reinforcing layer, and the outer surface of the rubber asphalt stress absorbing layer is rough and has no cracks.

Preferably, the overall structure of the mixture upper surface layer is consistent with that of the mixture lower surface layer, and the arrangement positions of the mixture upper surface layer and the mixture lower surface layer are in a vertically opposite state.

Preferably, the inserting ports, the bolts and the reinforcing rods are symmetrically arranged along the left side and the right side of the metal frame, and the lower ends of the reinforcing rods are in a sawtooth shape.

Preferably, the metal frame is made of alloy steel.

Preferably, the bolt is made of carbon steel.

The utility model has the advantages of as follows: the utility model discloses an improve and provide an environmental protection cold regeneration road surface structure here, compare with equipment of the same type, have following improvement:

an environmental protection cold regeneration road surface structure, through setting up metal crate, the slip casting back up coat, the metalling, rubber asphalt stress absorbing layer and waterproof layer, the problem that the road surface easily splits and easily caves in has been solved, under metal crate and slip casting back up coat cooperation, realize the enhancement of road surface bearing capacity, avoid the road surface to take place to sink, the slip casting back up coat that the metal crate middle part set up simultaneously, also can realize the enhancement of bearing capacity, and under metalling and rubber asphalt stress absorbing layer cooperation, realize the enhancement of road surface crack resistance, the setting of waterproof layer not only realizes the road surface waterproof simultaneously, crack resistance is further improved simultaneously, thereby the advantage of road surface crack resistance and bearing capacity enhancement has been reached.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the front cross-sectional structure of the reinforcing apparatus of the present invention;

FIG. 3 is an enlarged schematic view of the waterproof layer A of the present invention;

FIG. 4 is a schematic view of the metal frame structure of the present invention;

fig. 5 is a schematic view of the fastener structure of the present invention.

Wherein: the composite anti-cracking and anti-cracking composite material comprises a cushion layer-1, a sub-base layer-2, a cold regeneration base layer-3, a lower surface layer-4, an upper surface layer-5, a reinforcing device-6, a metal frame-61, a grouting reinforcing layer-62, a gravel layer-63, a rubber asphalt stress absorbing layer-64, a mixture upper surface layer-65, a mixture lower surface layer-66, a waterproof layer-67, a fastener-68, a composite anti-cracking paste-671, a waterproof anti-cracking layer-672, a socket-681, a bolt-682 and a reinforcing rod-683.

Detailed Description

The present invention will be described in detail with reference to the accompanying fig. 1-5, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides an environmental protection cold regeneration pavement structure through an improvement, including a cushion layer 1 and a reinforcing device 6, the top of the cushion layer 1 is provided with a sub-base layer 2, a cold regeneration base layer 3 is installed on the top of the sub-base layer 2, the top of the cold regeneration base layer 3 is provided with a lower surface layer 4, and the top of the lower surface layer 4 is connected with an upper surface layer 5.

Referring to fig. 2, 3 and 4, the present invention provides an environment-friendly cold-recycling pavement structure through improvement, wherein a reinforcing device 6 is disposed inside a lower surface layer 4, the reinforcing device 6 comprises a metal frame 61, a grouting reinforcement layer 62, a gravel layer 63, a rubber asphalt stress absorbing layer 64, an upper mixture surface layer 65, a lower mixture surface layer 66, a waterproof layer 67 and a fastener 68, the front and rear sides of the metal frame 61 are fixed to the cold-recycling base layer 3 through the fastener 68, the middle part of the metal frame 61 is provided with the grouting reinforcement layer 62, the upper and lower sides of the grouting reinforcement layer 62 are provided with the gravel layer 63, the outer side of the gravel layer 63 is provided with the rubber asphalt stress absorbing layer 64, the outer side of the rubber asphalt stress absorbing layer 64 is respectively connected with the upper mixture surface layer 65 and the lower mixture surface layer 66, the waterproof layer 67 is disposed on the top of the metal frame 61, the waterproof layer 67 comprises a composite anti-crack layer 671 and a waterproof anti-crack layer 672, the composite anti-cracking tape 671 and the waterproof anti-cracking layer 672 are adhered and fixed with each other, the metal frame 61 is in a well shape as a whole, and the left and right sides of the metal frame 61 are respectively connected with the cold regeneration base layer 3, the lower layer 4 and the upper layer 5, so that the increase of the bearing capacity of the pavement is realized by the metal frame 61, the gravel layer 63 and the rubber asphalt stress absorption layer 64 are symmetrically arranged up and down along the grouting reinforcement layer 62, and the outer surface of the rubber asphalt stress absorbing layer 64 is rough and has no cracks, so that the characteristics of crack resistance, water resistance and the like of the pavement are enhanced through the rubber asphalt stress absorbing layer 64, the integral structure of the mixture upper surface layer 65 is consistent with that of the mixture lower surface layer 66, and the mixture upper surface layer 65 and the mixture lower surface layer 66 are arranged in a vertically opposite state, the mixture upper surface layer 65 and the mixture lower surface layer 66 are made of alloy steel materials, so that the structural performance of the road surface is enhanced, and breakage is avoided.

Please refer to fig. 5, the present invention provides an environment-friendly cold recycling pavement structure through an improvement, the fastening member 68 includes a socket 681, a bolt 682 and a reinforcement bar 683, the socket 681 is disposed on the left and right sides of the metal frame 61, and the bolt 682 is connected to the internal thread of the socket 681, the reinforcement bar 683 is fixed inside the bolt 682, the socket 681, the bolt 682 and the reinforcement bar 683 are symmetrically disposed along the left and right sides of the metal frame 61, and the lower end of the reinforcement bar 683 is in a zigzag shape, so that the reinforcement bar 683 is matched with the bolt 682 to reinforce the metal frame 61, and the bolt 682 is made of carbon steel.

The utility model provides an environment-friendly cold regeneration pavement structure through improvement, and operates according to the following mode;

firstly, when the cold recycling pavement mechanism is constructed, the subbase layer 2 is poured on the top of the cushion layer 1, then after the subbase layer 2 is cooled, the cold recycling base layer 3 is poured on the top of the subbase layer 2, after the cold recycling base layer 3 is cooled, the lower surface layer 4 is poured on the top of the cold recycling base layer 3, and finally after the lower surface layer 4 is cooled, the upper surface layer 5 is poured on the lower surface layer 4, so that after the upper surface layer 5 is cooled, the construction of the cold recycling pavement structure can be completed, and all the used materials are made of old building materials, so that the green and environment-friendly effects are realized, and meanwhile, the recycling of wanted resources is realized;

secondly, when the cold-recycling road surface structure is used, although the adopted materials are old building materials, the resource can be well reused, when the cold-recycling road surface is used for a long time, the road surface is easy to crack along with the long-time running of vehicles, the crack is generated, the road surface structure is changed, and when the cold-recycling road surface is serious, the crack causes the sinking of the road surface, and further the road surface is sunk;

thirdly, by arranging the reinforcing device 6 in the lower surface layer 4, firstly, the metal frame 61 is tightly installed in the lower surface plate 4 through the fasteners 68 arranged on the left and right sides, firstly, the bolts 682 of the fasteners 68 are screwed in along the insertion ports 681 arranged on the left and right sides of the metal frame 61, so that the lower ends of the bolts 682 are tightly connected with the cold regeneration base layer 3, then the reinforcing rods 683 arranged in the middle of the bolts 682 are nailed, so that the lower ends of the reinforcing rods 683 are fixedly inserted in the cold regeneration base layer 3, and thus, under the tight fit of the bolts 682 and the reinforcing rods 683, the firm installation of the metal frame 61 can be ensured;

fourthly, under the action of the metal frame 61, the bearing capacity of the road surface can be enhanced, the sinking of the road surface is avoided, meanwhile, the grouting reinforcement layer arranged in the middle of the metal frame 61 can also realize the reinforcement of the bearing capacity, and under the mutual cooperation of the gravel layer 63 and the rubber asphalt stress absorbing layer 64 which are arranged at the upper end and the lower end of the grouting reinforcing layer 62, the waterproof layer 67 arranged on the top of the metal frame 62 can strengthen the whole hardness of the pavement structure, and prevent the pavement structure from changing due to cracks in the long-time driving process of vehicles, under the mutual matching of the internal composite anti-cracking paster 671 and the waterproof anti-cracking layer 672, the water leakage phenomenon of the pavement structure can be avoided, meanwhile, the composite anti-cracking paster 671 and the waterproof anti-cracking layer 672 can also realize the enhancement of the crack resistance of the pavement under the anti-cracking action, thereby achieving the advantages of the crack resistance and the bearing capacity enhancement of the pavement.

The utility model discloses an improvement provides an environmental protection cold regeneration road surface structure, through setting up metal crate 61, slip casting back up coat 62, metalling 63, rubber asphalt stress absorbing layer 64 and waterproof layer 67, the problem that the road surface is breakable and easily sunken has been solved, under metal crate 61 and the cooperation of slip casting back up coat 62, realize the enhancement of road surface bearing capacity, avoid the road surface to take place to sink, the slip casting back up coat that metal crate 62 middle part set up simultaneously, also can realize the enhancement of bearing capacity, and under metalling 64 and the cooperation of rubber asphalt stress absorbing layer 65, realize the enhancement of road surface crack resistance, waterproof layer 67's setting not only realizes the road surface waterproof simultaneously, further improve crack resistance simultaneously, thereby the advantage of road surface crack resistance and bearing capacity enhancement has been reached.

Claims

1. An environment-friendly cold-recycling pavement structure comprises a cushion layer (1), wherein a bottom base layer (2) is arranged at the top of the cushion layer (1);

the method is characterized in that: the cold-recycling base layer is characterized by further comprising a reinforcing device (6), wherein the reinforcing device (6) is arranged inside the lower surface layer (4), the reinforcing device (6) comprises a metal frame (61), a grouting reinforcing layer (62), a gravel layer (63), a rubber asphalt stress absorbing layer (64), a mixture upper surface layer (65), a mixture lower surface layer (66), a waterproof layer (67) and fasteners (68), the front side and the rear side of the metal frame (61) are fixedly connected with the cold-recycling base layer (3) through the fasteners (68) in an inserting mode, the grouting reinforcing layer (62) is arranged in the middle of the metal frame (61), the gravel layer (63) is arranged on the upper side and the lower side of the grouting reinforcing layer (62), the rubber asphalt stress absorbing layer (64) is arranged on the outer side of the gravel layer (63), and the outer side of the rubber asphalt stress absorbing layer (64) is respectively connected with the mixture upper surface layer (65) and the mixture lower surface layer (66), the waterproof layer (67) is arranged on the top of the metal frame (61).

2. The environment-friendly cold-recycling pavement structure according to claim 1, characterized in that: the fastener (68) comprises a plug interface (681), a bolt (682) and a reinforcing rod (683), wherein the plug interface (681) is arranged on the left side and the right side of the metal frame (61), the bolt (682) is in threaded connection with the inner part of the plug interface (681), and the reinforcing rod (683) is fixedly inserted into the bolt (682).

3. The environment-friendly cold-recycling pavement structure according to claim 1, characterized in that: the waterproof layer (67) comprises a composite anti-cracking sticker (671) and a waterproof anti-cracking layer (672), and the composite anti-cracking sticker (671) and the waterproof anti-cracking layer (672) are adhered and fixed with each other.

4. The environment-friendly cold-recycling pavement structure according to claim 1, characterized in that: cold regeneration basic unit (3) are installed at subbase (2) top, cold regeneration basic unit (3) top is provided with lower surface course (4), lower surface course (4) top is connected with upper surface course (5).

5. The environment-friendly cold-recycling pavement structure according to claim 1, characterized in that: the metal framework (61) is integrally in a well shape, and the left side and the right side of the metal framework (61) are respectively connected with the cold regeneration base layer (3), the lower surface layer (4) and the upper surface layer (5).

6. The environment-friendly cold-recycling pavement structure according to claim 1, characterized in that: the gravel layer (63) and the rubber asphalt stress absorbing layer (64) are symmetrically arranged up and down along the grouting reinforcement layer (62), and the outer surface of the rubber asphalt stress absorbing layer (64) is rough and has no cracks.

7. The environment-friendly cold-recycling pavement structure according to claim 1, characterized in that: the mixture upper layer (65) and the mixture lower layer (66) are consistent in overall structure, and the positions of the mixture upper layer (65) and the mixture lower layer (66) are opposite up and down.

8. The environment-friendly cold-recycling pavement structure according to claim 2, characterized in that: the inserting ports (681), the bolts (682) and the reinforcing rods (683) are symmetrically arranged along the left side and the right side of the metal frame (61), and the lower ends of the reinforcing rods (683) are in a sawtooth shape.