Construction waste cement stabilized macadam base structure capable of preventing softening

Abstract

The utility model discloses an anti-softening construction waste cement stabilized macadam base layer structure which comprises a cement macadam base layer and a waste concrete solid brick mixed base layer, and the cement macadam base layer is arranged at the top end of the waste concrete solid brick mixed base layer. The middle of the positioning seat penetrates through the outer side of the extending part of the reinforcing bottom cylinder and is nailed into the waste concrete solid brick mixed base layer through the fixing nails, the bottom of the hollow reinforcing rib penetrates into the reinforcing bottom cylinder, the cement macadam base layer and the cement paste layer are laid in sequence, and the cement paste layer is higher than the hollow reinforcing rib so that the interior of the hollow reinforcing rib can be grouted synchronously. Under the action of the grouting holes, connection between the hollow reinforcing ribs and the reinforcing bottom cylinder is improved, so that the situation that the reinforcing ribs are prone to inclination under the external force factor due to the large height and the reinforcing effect is reduced is avoided, the stability between the hollow reinforcing ribs and the road surface can be improved, meanwhile, the road surface strength is enhanced, and the road surface softening phenomenon is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of road engineering, in particular to a construction waste cement-stabilized gravel base structure that is prevented from softening. Background Art

[0002] my country has a large population and is at a critical stage of economic development. Reusing waste resources and reducing environmental impact is one of the goals of environmental protection and sustainable development in my country, and holds significant practical significance for building a harmonious society. Compared to other types of municipal waste, construction waste is characterized by its large volume, non-toxicity, and high resource utilization rate. Furthermore, with the rapid development of road and construction, natural aggregate resources are becoming increasingly depleted. Reusing construction waste in highway projects can reduce environmental pollution, conserve natural resources, and reduce project investment.

[0003] Chinese Patent Authorization Announcement No. CN 220685645 U discloses a cement-stabilized gravel base layer, relating to the field of municipal engineering technology, comprising an ultra-thick upper base layer, an ultra-thick lower base layer, and cement slurry. The cement slurry is located between the ultra-thick upper base layer and the ultra-thick lower base layer, the ultra-thick upper base layer being located at the bottom of the cement slurry. The ultra-thick upper base layer is embedded with a plurality of T-shaped reinforcing ribs, which are arranged in an orderly grid pattern. The cement slurry is embedded with a wire mesh, and the tops of the T-shaped reinforcing ribs pass through the meshes of the wire mesh. By embedding a plurality of T-shaped reinforcing ribs in the ultra-thick upper base layer and protruding the tops of the T-shaped reinforcing ribs so as to extend into the ultra-thick lower base layer and the cement slurry, the tightness of the connection between the three is enhanced, thereby improving the stability of the three when formed into a whole. The wire mesh embedded in the cement slurry can further enhance the stability of the cement slurry structure, so that the cement slurry between the ultra-thick upper base layer and the ultra-thick lower base layer can better connect the two.

[0004] The above-mentioned existing technical solutions have the following shortcomings: the tops of the T-shaped reinforcement ribs in the technical solution are mostly on the outside, which can easily cause partial displacement or skewness due to external factors when the base layer is laid. There is a certain room for optimization. Therefore, it is necessary to design a construction waste cement stabilized gravel base structure that prevents softening to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a construction waste cement stabilized gravel base structure that prevents softening, so as to solve the problem of inconvenience in providing position-limiting support for reinforcement bars in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a construction waste cement stabilized gravel base structure to prevent softening, comprising a cement gravel base and a mixed base of waste concrete solid bricks, wherein the cement gravel base is arranged on top of the mixed base of waste concrete solid bricks;

[0007] A cement slurry layer is provided on the top of the cement gravel base layer, and an asphalt surface layer is provided on the top of the cement slurry layer. The interior of the waste concrete solid brick mixed base layer is evenly connected with a reinforcing bottom tube, and the interior of the reinforcing bottom tube is connected with a hollow reinforcing rib. The bottom end of the hollow reinforcing rib is evenly provided with grouting holes. A second accommodating channel is provided inside the cement gravel base layer, and a first accommodating channel is evenly provided at the bottom end of the cement slurry layer. The top of the hollow reinforcing rib passes through the interior of the second accommodating channel and is connected to the first accommodating channel. A positioning ring is fixed on the outside of the hollow reinforcing rib. The top of the waste concrete solid brick mixed base layer outside the reinforcing bottom tube is evenly connected with a positioning seat. The top of the waste concrete solid brick mixed base layer is evenly provided with connecting holes, and the inside of the connecting hole is connected with a fixing nail through the positioning seat.

[0008] Preferably, positioning blocks are evenly fixed to the bottom end of the positioning ring, positioning grooves are evenly provided on the top end of the positioning seat, and the positioning grooves are all connected to the positioning seat.

[0009] Preferably, the size of the positioning seats matches the size of the positioning slots, and four groups of the positioning seats and positioning slots are provided.

[0010] Preferably, a first reinforcing convex layer is evenly fixed to the bottom end of the cement slurry layer, and first reinforcing grooves are evenly provided on the top end of the cement gravel base layer, and the first reinforcing grooves are all connected to the first reinforcing convex layer.

[0011] Preferably, the bottom ends of the first reinforcing convex layers are all fixed with second reinforcing convex layers, the bottom ends of the first reinforcing grooves are all provided with second reinforcing grooves, and the second reinforcing grooves are all connected to the second reinforcing convex layers.

[0012] Preferably, the width of the first reinforcing convex layer matches the width of the first reinforcing groove, and the cross-sections of the first reinforcing convex layer and the second reinforcing groove are both arranged to be trapezoidal.

[0013] Preferably, the positioning ring and the hollow reinforcement rib are connected by welding, and the diameter of the positioning ring is smaller than the diameter of the positioning seat.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the construction waste cement stabilized gravel base structure that prevents softening realizes the function of improving the stability and strength of the reinforcement components;

[0015] By pre-embedding the reinforcing bottom tube into the waste concrete solid brick mixed base, and leaving a shorter extension part on the outside, then passing the middle part of the positioning seat through the outside of the reinforcing bottom tube extension part and nailing it into the waste concrete solid brick mixed base through fixing nails, the bottom of the hollow reinforcing rib is deeply inserted into the reinforcing bottom tube, and the cement gravel base and cement slurry layer are laid in sequence, and the cement slurry layer is higher than the hollow reinforcing rib so that the inside is grouted synchronously. Under the action of the grouting hole, the connection between the reinforcing bottom tube is improved, thereby avoiding the reinforcing rib from tilting easily under external force factors due to its long height, reducing the reinforcement effect, thereby improving the stability between the hollow reinforcing rib and the road surface, and at the same time enhancing the road surface strength, reducing the occurrence of road surface softening, effectively preventing road surface damage, and extending the service life;

[0016] The positioning block and the positioning groove facilitate the quick connection between the positioning ring and the positioning seat during use, and prevent the reinforcing rib from turning and moving after connection, thereby enhancing the overall connection stability.

[0017] When laying the cement gravel base layer, a mold is used to form the first reinforcement groove and the second reinforcement groove on the top of the cement gravel base layer. When laying the cement slurry layer, the first reinforcement convex layer and the second reinforcement convex layer are formed at its bottom in the first reinforcement groove and the second reinforcement groove, so as to enhance the contact area between the upper and lower layers and improve the road surface strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the cement slurry layer of the present utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the cement gravel base of the utility model;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the waste concrete solid brick mixed base of the utility model;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the positioning seat of the utility model.

[0024] Explanation of the reference numerals in the figure: 1. Asphalt surface layer; 2. Cement slurry layer; 3. Cement crushed stone base layer; 4. Mixed base layer of discarded concrete solid bricks; 5. First accommodating channel; 6. First reinforcing convex layer; 7. Second reinforcing convex layer; 8. First reinforcing groove; 9. Second reinforcing groove; 10. Second accommodating channel; 11. Hollow reinforcing rib; 12. Positioning ring; 13. Grouting hole; 14. Connecting hole; 15. Reinforced bottom tube; 16. Positioning block; 17. Fixing nail; 18. Positioning seat; 19. Positioning groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the embodiments described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 5 , the utility model provides the following technical solutions: Example

[0027] In order to solve the problem of low vertical limit stability of the reinforcement in the prior art, the following solution is disclosed. Figure 1 、 Figure 4 and Figure 5As shown, the construction waste cement stabilized gravel base structure for preventing softening provided by the present application includes a cement gravel base 3 and a waste concrete solid brick mixed base 4. The cement gravel base 3 is arranged on the top of the waste concrete solid brick mixed base 4. The top of the cement gravel base 3 is provided with a cement slurry layer 2, and the top of the cement slurry layer 2 is provided with an asphalt surface layer 1. The interior of the waste concrete solid brick mixed base 4 is evenly connected with a reinforcing bottom tube 15, and the interior of the reinforcing bottom tube 15 is connected with a hollow reinforcing rib 11, and the bottom end of the hollow reinforcing rib 11 is evenly provided with a grouting hole 13. The interior of the cement gravel base 3 is provided with a second accommodating channel 10, and the bottom end of the cement slurry layer 2 is evenly provided with a first accommodating channel 5. The top of the hollow reinforcing rib 11 passes through the interior of the second accommodating channel 10 and is connected to the first The accommodating channel 5 is connected, a positioning ring 12 is fixed to the outside of the hollow reinforcement rib 11, and a positioning block 16 is evenly fixed to the bottom end of the positioning ring 12. The top of the positioning seat 18 is evenly provided with a positioning groove 19, and the positioning grooves 19 are all connected to the positioning seat 18. The size of the positioning seat 18 matches the size of the positioning groove 19. There are four groups of positioning seats 18 and positioning grooves 19. The positioning ring 12 and the hollow reinforcement rib 11 are connected by welding. The diameter of the positioning ring 12 is smaller than the diameter of the positioning seat 18. The top of the waste concrete solid brick mixed base 4 on the outside of the reinforced bottom tube 15 is evenly connected with the positioning seat 18. The top of the waste concrete solid brick mixed base 4 is evenly provided with a connecting hole 14, and the inside of the connecting hole 14 is connected to the fixing nail 17 through the positioning seat 18.

[0028] In this embodiment, when in use, the reinforcing bottom tube 15 is pre-buried in the waste concrete solid brick mixed base 4, and a shorter extended portion is left on the outside, and then the middle part of the positioning seat 18 is passed through the outside of the extended portion of the reinforcing bottom tube 15, and is nailed into the waste concrete solid brick mixed base 4 through the fixing nail 17, and the bottom of the hollow reinforcing rib 11 is deeply inserted into the reinforcing bottom tube 15, and the cement gravel base 3 and the cement slurry layer 2 are laid in turn, and the cement slurry layer 2 is higher than the hollow reinforcing rib 11 so that its interior is grouted synchronously, and the connection between the reinforcing bottom tube 15 is improved under the action of the grouting hole 13, so that the hollow reinforcing rib 11 can be prevented from tilting easily under external force factors due to its long height through the assembled design, thereby reducing the reinforcement effect, thereby improving the stability between the hollow reinforcing rib 11 and the road surface, while enhancing the road surface strength, reducing the occurrence of road surface softening, effectively preventing road surface damage, and extending the service life. Example

[0029] This embodiment is different from the first embodiment by providing a reinforcement convex layer and a reinforcement groove to improve the connection contact strength between the upper and lower layers. Figure 1 、 Figure 2 and Figure 3As shown, the bottom end of the cement slurry layer 2 is evenly fixed with a first reinforcing convex layer 6, the top of the cement gravel base layer 3 is evenly provided with a first reinforcing groove 8, and the first reinforcing grooves 8 are all connected to the first reinforcing convex layer 6, the bottom end of the first reinforcing convex layer 6 is fixed with a second reinforcing convex layer 7, the bottom end of the first reinforcing groove 8 is provided with a second reinforcing groove 9, and the second reinforcing grooves 9 are all connected to the second reinforcing convex layer 7, the width of the first reinforcing convex layer 6 matches the width of the first reinforcing groove 8, and the cross-sections of the first reinforcing convex layer 6 and the second reinforcing groove 9 are both trapezoidal.

[0030] In this embodiment, when the cement gravel base layer 3 is laid, a mold is used to form a first reinforcement groove 8 and a second reinforcement groove 9 on the top of the cement gravel base layer 3. When the cement slurry layer 2 is laid, a first reinforcement convex layer 6 and a second reinforcement convex layer 7 are formed on the bottom thereof in the first reinforcement groove 8 and the second reinforcement groove 9, so as to enhance the contact area between the upper and lower layers and improve the road surface strength.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction waste cement-stabilized gravel base structure for preventing softening, comprising a cement gravel base (3) and a waste concrete solid brick mixed base (4), wherein the cement gravel base (3) is arranged on top of the waste concrete solid brick mixed base (4); Its characteristics are: The top of the cement crushed stone base (3) is provided with a cement slurry layer (2), and the top of the cement slurry layer (2) is provided with an asphalt surface layer (1), the interior of the waste concrete solid brick mixed base (4) is evenly connected with a reinforcing bottom tube (15), and the interior of the reinforcing bottom tube (15) is connected with a hollow reinforcing rib (11), and the bottom end of the hollow reinforcing rib (11) is evenly provided with a grouting hole (13), the interior of the cement crushed stone base (3) is provided with a second accommodating channel (10), and the bottom end of the cement slurry layer (2) is evenly provided with a first accommodating channel The top end of the hollow reinforcing rib (11) passes through the interior of the second accommodating channel (10) and is connected to the first accommodating channel (5); a positioning ring (12) is fixed to the outside of the hollow reinforcing rib (11); the top end of the waste concrete solid brick mixed base (4) outside the reinforcing bottom tube (15) is evenly connected to a positioning seat (18); the top end of the waste concrete solid brick mixed base (4) is evenly provided with connecting holes (14), and the inside of the connecting holes (14) is connected to a fixing nail (17) through the positioning seat (18).

2. The anti-softening construction waste cement-stabilized gravel base structure according to claim 1, characterized in that: Positioning blocks (16) are evenly fixed to the bottom end of the positioning ring (12), and positioning grooves (19) are evenly provided on the top end of the positioning seat (18), and the positioning grooves (19) are all connected to the positioning seat (18).

3. The anti-softening construction waste cement-stabilized gravel base structure according to claim 2, characterized in that: The size of the positioning seat (18) matches the size of the positioning groove (19), and four groups of the positioning seat (18) and the positioning groove (19) are provided.

4. The anti-softening construction waste cement-stabilized gravel base structure according to claim 1, characterized in that: A first reinforcing convex layer (6) is evenly fixed to the bottom end of the cement slurry layer (2), and first reinforcing grooves (8) are evenly provided on the top end of the cement crushed stone base layer (3), and the first reinforcing grooves (8) are all connected to the first reinforcing convex layer (6).

5. The anti-softening construction waste cement-stabilized gravel base structure according to claim 4, characterized in that: The bottom ends of the first reinforcing convex layers (6) are all fixed with second reinforcing convex layers (7), the bottom ends of the first reinforcing grooves (8) are all provided with second reinforcing grooves (9), and the second reinforcing grooves (9) are all connected to the second reinforcing convex layers (7).

6. The anti-softening construction waste cement-stabilized gravel base structure according to claim 4, characterized in that: The width of the first reinforcing convex layer (6) matches the width of the first reinforcing groove (8), and the cross-sections of the first reinforcing convex layer (6) and the second reinforcing groove (9) are both arranged to be trapezoidal.

7. The anti-softening construction waste cement-stabilized gravel base structure according to claim 1, characterized in that: The positioning ring (12) and the hollow reinforcement rib (11) are connected by welding, and the diameter of the positioning ring (12) is smaller than the diameter of the positioning seat (18).

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