CN221142341U

CN221142341U - Recyclable segment recycled concrete pavement structure

Info

Publication number: CN221142341U
Application number: CN202322855972.6U
Authority: CN
Inventors: 肖文蛟; 曹鑫; 林良颖
Original assignee: Guangdong Guanxiong Construction Group Co ltd
Current assignee: Guangdong Guanxiong Construction Group Co ltd
Priority date: 2023-10-23
Filing date: 2023-10-23
Publication date: 2024-06-14
Anticipated expiration: 2033-10-23

Abstract

The utility model discloses a recyclable segment recycled concrete pavement structure, which relates to the technical field of pavement structures and comprises a roadbed and a cushion layer fixedly arranged in the roadbed, wherein a plurality of concrete precast segments which are spliced in sequence along the length direction of the pavement and are hollow in the interior are fixedly arranged at the top of the cushion layer, a plurality of grooves which are uniformly distributed are formed in the top of the outer wall of each concrete precast segment, and an asphalt permeable concrete surface layer is fixedly arranged between the top surface of each concrete precast segment and the interior of each groove. According to the utility model, the concrete precast sections are spliced section by section, so that the construction period is shortened, the broken concrete precast sections and the separated reinforcing steel bars can be recycled, the bearing capacity of the concrete precast sections with the built-in reinforcing steel bars is high, the parts such as the upper support plate and the like can also support and strengthen the inside of the hollow concrete precast sections, the bearing strength is improved, and the concrete precast sections and pavement structures are not easy to collapse.

Description

Recyclable segment recycled concrete pavement structure

Technical Field

The utility model relates to the technical field of pavement structures, in particular to a recyclable segment recycled concrete pavement structure.

Background

The pavement structure is a layered structure which is paved on a road bed by various road building materials and directly bears the rolling load of people treading or vehicles.

The patent of bulletin number CN211036600U discloses "an assembled plastics permeable pavement structure, including setting up the bed course on the road bed, the top of bed course is equipped with the road surface layer, and the road surface layer is formed along length direction concatenation by a plurality of standard prefabricated sections. The fabricated pavement structure adopts a prefabricated standard knot structure, can rapidly realize assembly construction, saves construction period, can recycle plastic pavement, and is convenient for maintenance and repair of later-stage pavement.

For the above documents, the inventor considers that the transparent plastic pavement layer is made of waste plastic, the plastic bearing is limited, the interior of the transparent plastic pavement layer is hollow, and the transparent plastic pavement layer is easy to collapse after being stepped on by people or rolled by vehicles for a long time, so that the transparent plastic pavement layer needs to be improved.

Disclosure of utility model

Aiming at the defects existing in the prior art, the utility model provides a recyclable segment recycled concrete pavement structure, which has the following specific technical scheme:

The utility model provides a circulated festival section recycled concrete pavement structure, includes the road bed and fixes the bed course of establishing in the road bed, the fixed a plurality of concrete prefabricated sections that are equipped with of bed course top along road surface length direction concatenation in proper order and inside hollow, evenly distributed's a plurality of recesses have been seted up at concrete prefabricated section outer wall top, concrete prefabricated section top surface and a plurality of fixed asphalt concrete surface course that permeates water that is equipped with between the recess is inside, concrete prefabricated section inner wall top and bottom cooperation butt respectively have last backup pad and lower backup pad, the screw thread is equipped with two-way screw rod between going up backup pad and the lower backup pad.

By adopting the technical scheme, the parts such as the upper supporting plate and the like can also support and strengthen the inside of the hollow concrete precast section, so that the bearing strength is improved.

Optionally, a plurality of ground piles which are uniformly distributed are fixedly arranged at the bottom of the outer wall of the concrete precast section, and the bottom ends of the ground piles penetrate through the cushion layer and are matched and inserted in the roadbed.

By adopting the technical scheme, the ground pile can fix the concrete precast section in both the cushion layer and the roadbed.

Optionally, a plurality of steel bars which are uniformly distributed are fixedly arranged in the concrete prefabricated section.

By adopting the technical scheme, the concrete precast section with the built-in reinforcing steel bars has stronger bearing capacity.

Optionally, the fixed a plurality of fixing bases that are equipped with evenly distributed in last backup pad bottom, the fixed a plurality of fixing bases down that are equipped with evenly distributed in bottom suspension fagging top, two-way screw rod both ends respectively threaded connection are in last fixing base and lower fixing base, two-way screw rod outer wall is fixed to be equipped with the holding rod, the holding rod is located between fixing base and the lower fixing base.

Through adopting above-mentioned technical scheme, through rotatory two-way screw rod, can drive the backup pad and remove with the backup pad that is close to each other or keep away from down, make things convenient for backup pad and lower backup pad to support inside the precast concrete festival of different size specification.

Optionally, a plurality of first wash ports of evenly distributed have been seted up at precast concrete festival inner wall top, evenly seted up the second wash port that is linked together with first wash port in the upper supporting plate, first wash port is located directly over the second wash port.

Through adopting above-mentioned technical scheme, the concrete surface course that permeates water of pitch, first wash port and second wash port are discharged the water of road surface into in the precast concrete festival.

Optionally, the fixed drain pipe that is equipped with of concrete prefabrication festival inner wall bottom, the drain pipe bottom is located the road bed inside.

By adopting the technical scheme, the water in the concrete precast section can be discharged through the drain pipe.

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

1. The concrete precast sections can be assembled and constructed quickly by splicing the concrete precast sections section by section, the construction period is shortened, the broken concrete precast sections and the separated reinforcing steel bars can be recycled, the bearing capacity of the concrete precast sections with the built-in reinforcing steel bars is high, the parts such as the upper supporting plates can also support and strengthen the inside of the hollow concrete precast sections, the bearing strength is improved, and the concrete precast sections and the pavement structure are not easy to collapse.

2. Through rotatory two-way screw rod, can drive and go up backup pad and lower backup pad and be close to each other or move away from, conveniently go up backup pad and lower backup pad and support the inside of the precast concrete festival of different size specifications, application scope is wider, parts such as asphalt pervious concrete surface course, first wash port and drain pipe can be with the water drainage on road surface, make road surface department difficult ponding.

3. Through the setting of recess, can increase the area of contact of asphalt pervious concrete surface course and the precast concrete festival to improve the joint strength of asphalt pervious concrete surface course and precast concrete festival, make asphalt pervious concrete surface course be difficult for breaking away from the precast concrete festival.

Drawings

FIG. 1 is a schematic view of the interior of the overall structure of the present utility model;

FIG. 2 is an enlarged view of the structure A of FIG. 1 in accordance with the present utility model;

Fig. 3 is a front view of the upper fixing base, the two-way screw and the lower fixing base of the present utility model.

Reference numerals illustrate: 1. roadbed; 2. a cushion layer; 3. a concrete precast segment; 31. reinforcing steel bars; 32. a ground pile; 33. a drain pipe; 34. a groove; 35. a first drain hole; 4. asphalt permeable concrete surface layer; 5. an upper support plate; 51. a lower support plate; 52. an upper fixing seat; 53. a lower fixing seat; 54. a bidirectional screw; 55. a grip; 56. and a second drain hole.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-3.

The embodiment of the utility model discloses a recyclable segmental recycled concrete pavement structure, which comprises a roadbed 1 and a cushion layer 2 fixedly arranged in the roadbed 1, wherein the cushion layer 2 can be a sand cushion layer, a gravel cushion layer or a grid gravel cushion layer, and the roadbed 1 can support and fix the cushion layer 2.

Referring to fig. 1, the top of the cushion layer 2 is fixedly provided with a plurality of concrete precast sections 3 which are spliced in turn along the length direction of the road surface and hollow inside, the cushion layer 2 can support the concrete precast sections 3 in a plurality of sections, and after a certain section of concrete precast section 3 is damaged, the concrete precast section 3 can be quickly replaced, so that the maintenance time is shortened, and the maintenance and management cost of the road surface in the later operation period is saved.

Referring to fig. 1-2, a plurality of steel bars 31 are uniformly distributed in the concrete precast segment 3, the steel bars 31 can strengthen the inside of the concrete precast segment 3, the crushed concrete precast segment 3 can be used as aggregate for recycling, the steel bars 31 separated from the crushed concrete precast segment 3 can be recycled, and the steel bars 31 and the concrete precast segment 3 made of concrete are matched with each other in the prior art, such as precast culverts, precast shear walls and the like, which are not repeated herein.

Referring to fig. 1-2, a plurality of ground piles 32 are uniformly distributed at the bottom of the outer wall of the precast concrete section 3, the bottom ends of the ground piles 32 penetrate through the cushion layer 2 to be matched and inserted into the roadbed 1, and the precast concrete section 3 can be fixed in both the cushion layer 2 and the roadbed 1 by the ground piles 32, so that the precast concrete section 3 is not easy to sink and deviate due to the loss of soil in the roadbed 1 at the bottom.

Referring to fig. 1-2, a plurality of evenly distributed grooves 34 are formed in the top of the outer wall of the precast concrete segment 3, an asphalt pervious concrete surface layer 4 is fixedly arranged between the top surface of the precast concrete segment 3 and the inside of the grooves 34, the contact area between the asphalt pervious concrete surface layer 4 and the precast concrete segment 3 can be increased by the grooves 34, so that the connection strength between the asphalt pervious concrete surface layer 4 and the precast concrete segment 3 is improved, the asphalt pervious concrete surface layer 4 can shield and protect the precast concrete segment 3, the asphalt pervious concrete surface layer 4 is the existing asphalt pervious concrete, and the asphalt pervious concrete has a pervious effect, and is not repeated herein.

Referring to fig. 1-2, the top and the bottom of the inner wall of the precast concrete segment 3 are respectively matched and abutted with an upper supporting plate 5 and a lower supporting plate 51, the upper supporting plate 5 and the lower supporting plate 51 can support and strengthen the inside of the hollow precast concrete segment 3, the precast concrete segment 3 is not easy to collapse, and a bidirectional screw 54 is arranged between the upper supporting plate 5 and the lower supporting plate 51 in a threaded manner.

Referring to fig. 2-3, a plurality of upper fixing seats 52 are fixedly arranged at the bottom of the upper supporting plate 5, a plurality of lower fixing seats 53 are fixedly arranged at the top of the lower supporting plate 51, two ends of a bidirectional screw rod 54 are respectively connected in the upper fixing seats 52 and the lower fixing seats 53 in a threaded manner, the upper fixing seats 52 and the lower fixing seats 53 can be connected with the upper supporting plate 5, the lower supporting plate 51 and the bidirectional screw rod 54, and as the two ends of the bidirectional screw rod 54 are opposite in thread direction, after the bidirectional screw rod 54 rotates, the upper fixing seats 52 and the lower fixing seats 53 are connected, and the upper supporting plate 5 and the lower supporting plate 51 can move close to or far from each other.

Referring to fig. 2-3, a holding rod 55 is fixedly arranged on the outer wall of the bidirectional screw 54, the holding rod 55 is located between the upper fixing seat 52 and the lower fixing seat 53, and people can rotate the bidirectional screw 54 through the holding rod 55 from the position between the upper fixing seat 52 and the lower fixing seat 53.

Referring to fig. 2-3, a plurality of first water drain holes 35 are uniformly distributed on the top of the inner wall of the precast concrete segment 3, so that water on the road surface can flow into the first water drain holes 35 through the water permeation of the asphalt permeable concrete surface layer 4.

Referring to fig. 2-3, second drain holes 56 communicated with the first drain holes 35 are uniformly formed in the upper support plate 5, the first drain holes 35 are located right above the second drain holes 56, water in the first drain holes 35 can flow into the bottom of the inner side of the precast concrete segment 3 through the communicated second drain holes 56, and waterproof paint is coated on the outer walls of the bidirectional screw rods 54 and the inner and outer walls of the precast concrete segment 3, the upper support plate 5, the lower support plate 51, the upper fixing seat 52 and the lower fixing seat 53.

Referring to fig. 2-3, an inclined drain pipe 33 is fixedly arranged at the bottom of the inner wall of the concrete precast segment 3, the bottom end of the drain pipe 33 is positioned in the roadbed 1, and the drain pipe 33 can drain water in the concrete precast segment 3.

The implementation principle of the recyclable segment recycled concrete pavement structure provided by the embodiment of the utility model is as follows:

When the concrete foundation pavement is used, people can lay the cushion layer 2 on the roadbed 1 firstly, then according to the internal size of the precast concrete section 3, the two-way screw rod 54 is rotated through the holding rod 55 to drive the upper supporting plate 5 and the lower supporting plate 51 to move close to or far away from each other, the moved upper supporting plate 5 and lower supporting plate 51 can prop against the top and the bottom of the inner side of the precast concrete section 3, then the precast concrete section 3 with the ground piles 32 is placed on the top of the cushion layer 2 and compacted, at the moment, the bottom ends of the ground piles 32 penetrate through the cushion layer 2 and enter the roadbed 1, and then the precast concrete section 3 is spliced section by section to form the segmental concrete foundation pavement.

Then, the asphalt pervious concrete surface layer 4 is paved on the top of the concrete precast segment 3 and compacted, and the compacted asphalt pervious concrete surface layer 4 enters the groove 34 to improve the connection strength of the asphalt pervious concrete surface layer 4 and the concrete precast segment 3.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a circulated festival section recycled concrete pavement structure, includes road bed (1) and fixes bed course (2) of establishing in road bed (1), its characterized in that: the utility model discloses a concrete pavement structure, including bed course (2) and concrete prefabricated section (3), concrete prefabricated section (3) are fixed to be equipped with along road surface length direction concatenation in proper order and inside hollow a plurality of concrete prefabricated section (3), a plurality of recesses (34) of evenly distributed have been seted up at concrete prefabricated section (3) outer wall top, concrete prefabricated section (3) top surface and a plurality of fixed asphalt concrete surface course (4) that permeate water between recess (34) inside, cooperation butt has upper support plate (5) and lower backup pad (51) respectively with bottom in concrete prefabricated section (3) inner wall top, the screw thread is equipped with bi-directional screw (54) between upper support plate (5) and lower backup pad (51).

2. A recyclable segmental recycled concrete pavement structure according to claim 1, wherein: the bottom of the outer wall of the concrete prefabricated section (3) is fixedly provided with a plurality of uniformly distributed ground piles (32), and the bottom ends of the ground piles (32) penetrate through the cushion layer (2) to be matched and spliced in the roadbed (1).

3. A recyclable segmental recycled concrete pavement structure according to claim 1, wherein: a plurality of steel bars (31) which are uniformly distributed are fixedly arranged in the concrete precast section (3).

4. A recyclable segmental recycled concrete pavement structure according to claim 1, wherein: the bottom of the upper supporting plate (5) is fixedly provided with a plurality of upper fixing seats (52) which are uniformly distributed, the top of the lower supporting plate (51) is fixedly provided with a plurality of lower fixing seats (53) which are uniformly distributed, and two ends of the bidirectional screw rod (54) are respectively connected with the upper fixing seats (52) and the lower fixing seats (53) in a threaded mode.

5. A recyclable segmental recycled concrete pavement structure according to claim 4, wherein: the outer wall of the bidirectional screw rod (54) is fixedly provided with a holding rod (55), and the holding rod (55) is positioned between the upper fixing seat (52) and the lower fixing seat (53).

6. A recyclable segmental recycled concrete pavement structure according to claim 1, wherein: a plurality of first water drain holes (35) which are uniformly distributed are formed in the top of the inner wall of the concrete precast section (3).

7. A recyclable segmental recycled concrete pavement structure according to claim 6, wherein: second water draining holes (56) communicated with the first water draining holes (35) are uniformly formed in the upper supporting plate (5), and the first water draining holes (35) are located right above the second water draining holes (56).

8. A recyclable segmental recycled concrete pavement structure according to claim 1, wherein: the bottom of the inner wall of the concrete precast section (3) is fixedly provided with an inclined drain pipe (33), and the bottom end of the drain pipe (33) is positioned in the roadbed (1).