Concrete white-to-black pavement structure

Abstract

The utility model relates to the technical field of old cement road transformation, and discloses a concrete white-to-black pavement structure which comprises a cement pavement layer, a plurality of groups of transverse cutting grooves and longitudinal cutting grooves which are communicated in a staggered mode are formed in the upper side of the cement pavement layer, transverse connecting plates are installed at the bottoms of the transverse cutting grooves, and longitudinal connecting plates are installed at the bottoms of the longitudinal cutting grooves. A plurality of first asphalt layer connectors are installed on the upper side of the transverse connecting plate, second asphalt layer connectors are installed on the upper side of the longitudinal connecting plate, and connecting steel bars penetrate through the multiple second asphalt layer connectors on the same straight line. Compared with the prior art, the concrete pavement structure has the advantages that a plurality of groups of transverse cutting grooves and longitudinal cutting grooves are cut on the upper side, asphalt is poured into the transverse cutting grooves and the longitudinal cutting grooves, and the connecting strength between a concrete pavement layer and an asphalt layer is enhanced through the asphalt layer connectors I and the asphalt layer connectors II in the transverse cutting grooves and the longitudinal cutting grooves; and the phenomena of interlayer gaps and asphalt surface layer falling are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of old cement road reconstruction, in particular to a concrete white-to-black road surface structure. Background Art

[0002] There are two common ways to improve cement pavement:

[0003] 1. Directly demolish the original old cement pavement and directly pave the new asphalt pavement;

[0004] 2. Directly lay a thin layer of asphalt on the old cement pavement;

[0005] The former has a long construction period and a large amount of work, while the latter has a short construction period and a small amount of work. However, the latter is prone to the problem that the asphalt surface layer and the old cement pavement layer cannot be tightly connected, which aggravates the interlayer shear problem and is prone to interlayer gaps and asphalt surface layer falling off in the later stage.

[0006] In response to the above technical problems, this application proposes a concrete white to black pavement structure. Utility Model Content

[0007] 1. Technical Problems Solved

[0008] The technical problem to be solved by the utility model is that a thin layer of asphalt is directly laid on the basis of an old cement pavement, which easily leads to the problem that the asphalt surface layer and the old cement pavement layer cannot be tightly connected, and gaps between layers and the asphalt surface layer may fall off in the later stage.

[0009] 2. Technical Solution

[0010] In order to solve the above technical problems, the technical solution provided by the utility model is: a concrete white to black pavement structure, including a cement pavement layer, a plurality of groups of staggered and connected transverse grooves and longitudinal grooves are provided on the upper side of the cement pavement layer, a transverse connecting plate is installed at the bottom of the transverse groove, a longitudinal connecting plate is installed at the bottom of the longitudinal groove, a plurality of groups of asphalt layer connectors 1 are installed on the upper side of the transverse connecting plate, an asphalt layer connector 2 is installed on the upper side of the longitudinal connecting plate, and connecting steel bars pass through the multiple groups of asphalt layer connectors 2 on the same straight line.

[0011] As an improvement, the asphalt layer connector includes a mounting base, a mounting shaft is installed on the upper side of the mounting base, a plurality of sets of limiting bevel blocks are provided on the outer side of the mounting shaft, and a plurality of sets of bolts are passed through the edge of the mounting base and the horizontal connecting plate for cooperation and connection.

[0012] As an improvement, the asphalt layer connector 2 includes an inverted U-shaped frame, the upper side wall of the inverted U-shaped frame is provided with a through hole for matching the connecting steel bars to pass through, the upper side wall of the inverted U-shaped frame is provided with multiple groups of grooves, and the lower part of the two side walls of the inverted U-shaped frame is matched with the longitudinal connecting plate and passed through by multiple groups of bolts 2.

[0013] As an improvement, multiple sets of card slots 1 are provided on the upper side of the horizontal connecting plate and located at the intersection of the horizontal cutting groove and the vertical cutting groove, and multiple sets of card slots 2 are provided on the lower side of the vertical connecting plate and located at the intersection of the horizontal cutting groove and the vertical cutting groove, and the card slots 2 are connected with the card slots 1 at the corresponding position.

[0014] As an improvement, a mounting bolt passes through the second card slot and a corresponding group of first card slots, and a mounting hole for inserting the lower end of the mounting bolt is provided at the bottom of the intersection of the transverse groove and the longitudinal groove.

[0015] As an improvement, the outer side wall of the connecting steel bar is a threaded structure.

[0016] As an improvement, the upper side height of the asphalt layer connector 1 is lower than the upper side height of the cement pavement layer, the upper side height of the asphalt layer connector 2 is higher than the upper side height of the cement pavement layer, the connecting steel bars are located on the upper side of the cement pavement layer, and the connecting steel bars are welded and fixed to the asphalt layer connector 2.

[0017] 3. Beneficial Effects

[0018] The advantages of the present invention compared with the prior art are: by cutting multiple groups of transverse grooves and longitudinal grooves on the upper side, asphalt is poured into the inside of the transverse grooves and the longitudinal grooves, and the asphalt layer connector 1 and asphalt layer connector 2 inside the transverse grooves and the longitudinal grooves are used to enhance the connection strength between the cement pavement layer and the asphalt layer, thereby preventing the occurrence of interlayer gaps and the shedding of the asphalt surface layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an exploded view of a concrete white-to-black pavement structure of the utility model.

[0020] Figure 2 The utility model is a schematic diagram of the overall structure of a white concrete to black pavement structure.

[0021] Figure 3 The utility model is a schematic diagram of a cement pavement structure in which white concrete is converted to black.

[0022] Figure 4 The utility model is a schematic diagram of a transverse connecting plate structure of a white concrete to black pavement structure.

[0023] Figure 5 The utility model is a schematic diagram of the longitudinal connecting plate structure of a white concrete to black concrete pavement structure.

[0024] Figure 6 The utility model is a structural schematic diagram of an asphalt layer connector for converting a white concrete pavement structure into a black concrete pavement structure.

[0025] Figure 7 This is a schematic diagram of the second structure of an asphalt layer connector for a white concrete to black pavement structure according to the present invention.

[0026] As shown in the figure: 1. Cement pavement layer; 2. Horizontal cutting groove; 3. Longitudinal cutting groove; 4. Horizontal connecting plate; 5. Longitudinal connecting plate; 6. Asphalt layer connector 1; 601. Mounting base; 602. Mounting shaft; 603. Limiting bevel block; 604. Bolt 1; 7. Asphalt layer connector 2; 701. Inverted U-shaped frame; 702. Through hole; 703. Cutting groove; 704. Bolt 2; 8. Connecting steel bar; 9. Slot 1; 10. Slot 2; 11. Mounting bolt; 12. Mounting hole. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] Example 1

[0029] As attached Figure 1 and attached Figure 2 As shown, a concrete white-to-black pavement structure includes a cement pavement layer 1, and a plurality of groups of staggered and connected transverse grooves 2 and longitudinal grooves 3 are provided on the upper side of the cement pavement layer 1. A transverse connecting plate 4 is installed at the bottom of the transverse groove 2, and a longitudinal connecting plate 5 is installed at the bottom of the longitudinal groove 3. A plurality of groups of asphalt layer connectors 6 are installed on the upper side of the transverse connecting plate 4, and an asphalt layer connector 2 7 is installed on the upper side of the longitudinal connecting plate 5.

[0030] Through the above structure, asphalt is poured inside the staggered and connected transverse grooves 2 and longitudinal grooves 3, and connected to the asphalt layer on the upper side of the cement pavement layer 1. The depth of the transverse grooves 2 and longitudinal grooves 3 is 5-10 cm, and the thickness of the asphalt layer on the upper side of the cement pavement layer 1 is 10-15 cm, ensuring that the asphalt pavement is connected to the cement pavement layer 1. The transverse connecting plates 4 and the longitudinal connecting plates 5 are staggered and fixedly installed at the bottom of the transverse grooves 2 and longitudinal grooves 3 respectively. The connection strength between the cement pavement layer 1 and the asphalt layer is enhanced by the asphalt layer connector 1 6 and the asphalt layer connector 2 7. The specific structure is as follows:

[0031] Combined with attachment Figure 6 and attached Figure 7 As shown, the asphalt layer connector 1 6 includes a mounting base 601, a mounting shaft 602 is mounted on the upper side of the mounting base 601, and multiple sets of limiting inclined blocks 603 are provided on the outer side of the mounting shaft 602. Multiple sets of bolts 604 are passed through the edge of the mounting base 601 and the horizontal connecting plate 4;

[0032] The asphalt layer connector 2 7 includes an inverted U-shaped frame 701 , the upper side wall of the inverted U-shaped frame 701 is provided with multiple groups of grooves 703 , and the lower part of the two side walls of the inverted U-shaped frame 701 is connected to the longitudinal connecting plate 5 through multiple groups of bolts 2 704 .

[0033] With the above structure, when pouring asphalt into the transverse groove 2 and the longitudinal groove 3, the liquid asphalt is wrapped around the outside of the asphalt layer connector 1 6. After the asphalt solidifies, the asphalt is captured by the multiple sets of limiting inclined blocks 603 to prevent the asphalt inside the transverse groove 2 from moving upward and forming a gap between the transverse groove 2 and the asphalt.

[0034] When the liquid asphalt is wrapped into the longitudinal groove 3, the liquid asphalt wraps around the asphalt layer connector 2 7. After the asphalt solidifies, the asphalt is limited by the inverted U-shaped frame 701, and the asphalt enters the multiple groups of grooves 703, strengthening the connection surface between the asphalt and the inverted U-shaped frame 701, strengthening the connection strength between the longitudinal groove 3 and the internal asphalt, and preventing the formation of gaps between the asphalt and the longitudinal groove 3.

[0035] Combined with attachment Figure 3 , Attachment Figure 4 and attached Figure 5 As shown, a plurality of groups of card slots 1 9 are provided on the upper side of the transverse connecting plate 4 and located at the intersection of the transverse groove 2 and the longitudinal groove 3, and a plurality of groups of card slots 2 10 are provided on the lower side of the longitudinal connecting plate 5 and located at the intersection of the transverse groove 2 and the longitudinal groove 3. The card slots 2 10 are engaged with the card slots 1 9 at the corresponding position.

[0036] A mounting bolt 11 passes through the second card slot 10 and the corresponding group of card slots 1 9, and a mounting hole 12 for inserting the lower end of the mounting bolt 11 is provided at the bottom of the cross-cut groove 2 and the longitudinal groove 3 where they intersect and communicate.

[0037] Through the above structure, after the transverse connecting plate 4 and the longitudinal connecting plate 5 are installed inside the transverse groove 2 and the longitudinal groove 3, they are connected to the corresponding position of the card slot 1 9 through the card slot 2, so that the lower sides of the transverse connecting plate 4 and the longitudinal connecting plate 5 are respectively tightly attached to the bottom of the transverse groove 2 and the longitudinal groove 3. By passing multiple sets of mounting bolts 11 through the transverse connecting plate 4 and the longitudinal connecting plate 5 and installing them inside the mounting holes 12, the transverse connecting plate 4 and the longitudinal connecting plate 5 are fixedly installed at the bottom of the transverse groove 2 and the longitudinal groove 3.

[0038] Example 2

[0039] Based on the first embodiment, please refer to the attached Figure 2 The upper side height of the asphalt layer connector 1 6 is lower than the upper side height of the cement pavement layer 1, and the upper side height of the asphalt layer connector 2 7 is higher than the upper side height of the cement pavement layer 1. Connecting steel bars 8 pass through multiple groups of the asphalt layer connector 2 7 on the same straight line. The upper side wall of the inverted U-shaped frame 701 is provided with a through hole 702 for the connecting steel bars 8 to pass through. The connecting steel bars 8 are located on the upper side of the cement pavement layer 1, and the connecting steel bars 8 are welded and fixed to the asphalt layer connector 2 7.

[0040] Through the above structure of Example 2, the asphalt layer connector 1 6 grabs and limits the asphalt inside the transverse groove 2, and the lower part of the asphalt layer connector 2 7 grabs and limits the asphalt inside the longitudinal groove 3. The upper part of the asphalt layer connector 2 7 is connected with a connecting steel bar 8, which is wrapped on the inner side of the lower half of the asphalt layer. The cement pavement layer 1 is prevented from cracking when a large truck passes by after the groove is cut through the connecting steel bar 8.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0042] 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.

[0043] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without creatively designing a structure and embodiment similar to the technical solution, they shall fall within the scope of protection of the present invention.

Claims

1. A concrete pavement structure for converting white concrete to black concrete, comprising a cement pavement layer (1), wherein the upper side of the cement pavement layer (1) is provided with a plurality of groups of staggered and interconnected transverse grooves (2) and longitudinal grooves (3), characterized in that: A transverse connecting plate (4) is installed at the bottom of the transverse groove (2), a longitudinal connecting plate (5) is installed at the bottom of the longitudinal groove (3), multiple groups of asphalt layer connectors (1) (6) are installed on the upper side of the transverse connecting plate (4), and asphalt layer connectors (2) (7) are installed on the upper side of the longitudinal connecting plate (5), and connecting steel bars (8) pass through the multiple groups of asphalt layer connectors (2) (7) on the same straight line.

2. The white-to-black concrete pavement structure according to claim 1, characterized in that: The asphalt layer connector (6) comprises a mounting base (601), a mounting shaft (602) is mounted on the upper side of the mounting base (601), a plurality of groups of position-limiting inclined blocks (603) are arranged on the outer side of the mounting shaft (602), and a plurality of groups of bolts (604) are passed through the edge of the mounting base (601) and the transverse connecting plate (4) to cooperate with each other.

3. The white-to-black concrete pavement structure according to claim 1, characterized in that: The second asphalt layer connector (7) comprises an inverted U-shaped frame (701), the upper side wall of the inverted U-shaped frame (701) is provided with a through hole (702) for the connecting steel bar (8) to pass through, the upper side wall of the inverted U-shaped frame (701) is provided with multiple groups of cutting grooves (703), and the lower part of the two side walls of the inverted U-shaped frame (701) and the longitudinal connecting plate (5) are connected with each other through multiple groups of bolts (704).

4. The white-to-black concrete pavement structure according to claim 1, characterized in that: A plurality of first card slots (9) are provided on the upper side of the transverse connecting plate (4) and located at the intersection of the transverse groove (2) and the longitudinal groove (3), and a plurality of second card slots (10) are provided on the lower side of the longitudinal connecting plate (5) and located at the intersection of the transverse groove (2) and the longitudinal groove (3), wherein the second card slots (10) are engaged with the first card slots (9) at the corresponding positions.

5. The white-to-black concrete pavement structure according to claim 4, characterized in that: A mounting bolt (11) passes through the second clamping slot (10) and the corresponding first clamping slot (9), and a mounting hole (12) for inserting the lower end of the mounting bolt (11) is provided at the bottom of the cross-cut groove (2) and the longitudinal groove (3) where they intersect and communicate.

6. The white-to-black concrete pavement structure according to claim 1, characterized in that: The outer side wall of the connecting steel bar (8) is a threaded structure.

7. The white-to-black concrete pavement structure according to claim 1, characterized in that: The upper side height of the first asphalt layer connector (6) is lower than the upper side height of the cement pavement layer (1), the upper side height of the second asphalt layer connector (7) is higher than the upper side height of the cement pavement layer (1), the connecting steel bar (8) is located on the upper side of the cement pavement layer (1), and the connecting steel bar (8) and the second asphalt layer connector (7) are welded and fixed.

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