New and old roadbed pavement splicing structure for highway engineering

Abstract

The utility model discloses a new and old roadbed pavement splicing structure for highway engineering, belongs to the technical field of pavement splicing, and aims to solve the problem that normal use of spliced roadbeds and pavements is affected due to the fact that a new roadbed can move after long-time use, and comprises a foundation, an old roadbed body is fixed on one side of the top surface of the foundation, and the old roadbed body is fixed on the other side of the top surface of the foundation. A plurality of first clamping grooves which are distributed in a step shape are formed in the inner side wall of the old roadbed body; according to the utility model, the old subgrade body can be stably connected with the first new subgrade, the second new subgrade, the third new subgrade, the fourth new subgrade and the fifth new subgrade, so that the tensile capacity of the joints of the old subgrade body with the first new subgrade, the second new subgrade, the third new subgrade, the fourth new subgrade and the fifth new subgrade can be improved; the situation that the first new roadbed, the second new roadbed, the third new roadbed, the fourth new roadbed and the fifth new roadbed can move after long-time use, and then normal use of the spliced roadbed and pavement is affected is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of pavement splicing, and in particular relates to a new and old roadbed pavement splicing structure for a highway engineering project. Background Art

[0002] When a road is expanded, it is necessary to lay a new roadbed on the basis of the old roadbed. When paving the new roadbed, it is necessary to splice the old and new roadbeds to improve the tensile performance between the new and old roadbeds.

[0003] When the existing new and old roadbeds are connected in position, the contact surface of the new and old roadbeds is a plane, and there is insufficient friction in the lateral direction. The tensile strength of the connection between the new roadbed and the old roadbed is poor. After long-term use, the new roadbed will move, affecting the normal use of the roadbed and pavement after splicing.

[0004] Therefore, a new and old roadbed and pavement splicing structure for highway engineering is needed to solve the problem in the prior art that the new roadbed will move after long-term use, affecting the normal use of the spliced ​​roadbed and pavement. Utility Model Content

[0005] The purpose of the utility model is to provide a new and old roadbed pavement splicing structure for highway engineering to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new and old roadbed pavement splicing structure for a highway project, comprising a foundation, an old roadbed body is fixed on one side of the top surface of the foundation, a plurality of first engaging grooves distributed in a stepped shape are opened on the inner side wall of the old roadbed body, a symmetrically distributed first new roadbed, a second new roadbed, a third new roadbed, a fourth new roadbed and a fifth new roadbed are arranged in the old roadbed body, second engaging grooves are opened on two adjacent side surfaces of the first new roadbed, the second new roadbed, the third new roadbed, the fourth new roadbed and the fifth new roadbed close to one side of the old roadbed body, engaging rods are movably engaged between adjacent first engaging grooves and second engaging grooves, first openings distributed in a staggered manner are opened on the top and bottom of the first new roadbed close to one side, a plurality of second openings evenly distributed and matched with the first openings are opened on the top surfaces of the second new roadbed, the third new roadbed, the fourth new roadbed and the fifth new roadbed, the first opening and the second opening are connected to form an installation groove, and an installation frame is engaged in the installation groove.

[0007] It should be noted in the scheme that a number of evenly distributed docking holes are opened on one side of the top surface of the old road base body, and the docking holes pass through the second new roadbed, the third new roadbed, the fourth new roadbed and the fifth new roadbed, and steel bars are arranged in the docking holes.

[0008] It is further worth noting that the first concrete is injected into the docking hole, and the first concrete is wrapped around the outer periphery of the steel bar.

[0009] It should be further explained that side openings are respectively formed on two side surfaces of the inner side wall of the second opening, and side blocks are respectively fixed on two opposite side surfaces of the outer side wall of the mounting frame in the vertical direction, and the side blocks are engaged in the side openings.

[0010] As a preferred implementation, second concrete is injected into the installation groove.

[0011] Compared with the prior art, the new and old roadbed and pavement splicing structure provided by the utility model for highway engineering has at least the following beneficial effects:

[0012] (1) By setting up the old road base body, the first new roadbed, the second new roadbed, the third new roadbed, the fourth new roadbed and the fifth new roadbed can be staggered when connected to the old road base body, thereby improving the tensile strength of the connection between the old road base body and the first new roadbed, the second new roadbed, the third new roadbed, the fourth new roadbed and the fifth new roadbed. By setting up the first engaging groove and the second engaging groove, the old road base body and the first new roadbed, the second new roadbed, the third new roadbed, the fourth new roadbed and the fifth new roadbed can be stably connected, thereby improving the tensile strength of the connection between the old road base body and the first new roadbed, the second new roadbed, the third new roadbed, the fourth new roadbed and the fifth new roadbed, thereby avoiding the situation that the first new roadbed, the second new roadbed, the third new roadbed, the fourth new roadbed and the fifth new roadbed will move after long-term use, thereby affecting the normal use of the roadbed and pavement after splicing.

[0013] (2) By means of the provided steel bars and the first concrete, the positions of the old road base body and the first new roadbed, the second new roadbed, the third new roadbed, the fourth new roadbed and the fifth new roadbed can be fixed in the horizontal and vertical directions, thereby making the connection between the first new roadbed, the second new roadbed, the third new roadbed, the fourth new roadbed and the fifth new roadbed and the old road base body more stable, thereby further improving the tensile strength of the connection between the old road base body and the first new roadbed, the second new roadbed, the third new roadbed, the fourth new roadbed and the fifth new roadbed.

[0014] (3) By providing the installation groove, installation frame, side opening and side block, the first new roadbed, the second new roadbed, the third new roadbed, the fourth new roadbed and the fifth new roadbed are stably connected to one end of the old roadbed body. By providing the second concrete, the position of the installation frame after installation can be limited, thereby preventing the installation frame from moving out of the installation groove after long-term use. As a result, the first new roadbed, the second new roadbed, the third new roadbed, the fourth new roadbed and the fifth new roadbed are more stably connected to the old roadbed body, thereby improving the stability of the entire new roadbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the side view of the structure of the first new roadbed of the utility model;

[0017] Figure 3 This is a schematic diagram of the basic structure of the old road of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the clamping rod of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the second engaging groove of the utility model;

[0020] Figure 6 This is a schematic diagram of the installation slot structure of the utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the mounting frame of the utility model;

[0022] Figure 8 For this utility model Figure 1 Schematic diagram of the locally enlarged structure of A in the middle.

[0023] In the figure:

[0024] 100. old road basic body; 101. foundation; 102. docking hole; 103. first concrete; 104. steel bar;

[0025] 200, the first new roadbed; 201, the second new roadbed; 202, the third new roadbed; 203, the fourth new roadbed; 205, the fifth new roadbed;

[0026] 300, first engaging groove; 301, engaging rod; 302, second engaging groove;

[0027] 400, first opening; 401, second opening; 402, side opening; 403, mounting slot;

[0028] 500, mounting frame; 501, side block;

[0029] 600. Second concrete. DETAILED DESCRIPTION

[0030] See also Figure 1-8The utility model provides a new and old roadbed pavement splicing structure for a highway project, comprising a foundation 101, an old road base body 100 is fixed on one side of the top surface of the foundation 101, a plurality of first engaging grooves 300 distributed in a stepped shape are opened on the inner side wall of the old road base body 100, a first new roadbed 200, a second new roadbed 201, a third new roadbed 202, a fourth new roadbed 203 and a fifth new roadbed 205 are symmetrically arranged in the old road base body 100, and the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 are close to one side of the old road base body 100 Two adjacent side surfaces are respectively provided with second engaging grooves 302, and an engaging rod 301 is movably engaged between the adjacent first engaging grooves 300 and second engaging grooves 302. The top and bottom of the first new roadbed 200 are respectively provided with staggered first openings 400 on one side close to each other, and the top surfaces of the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 are respectively provided with a plurality of second openings 401 evenly distributed and matched with the first openings 400, and the first opening 400 and the second opening 401 are connected to form an installation groove 403, and a mounting frame 500 is engaged in the installation groove 403.

[0031] Further as Figure 8 As shown, a plurality of evenly distributed docking holes 102 are opened on one side of the top surface of the old road base body 100 , and the docking holes 102 pass through the second new roadbed 201 , the third new roadbed 202 , the fourth new roadbed 203 and the fifth new roadbed 205 , and steel bars 104 are arranged in the docking holes 102 .

[0032] By setting the steel bars 104, the positions of the old road base body 100 and the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 can be fixed in the horizontal and vertical directions, so that the connection between the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 and the old road base body 100 is more stably connected, thereby improving the tensile strength of the connection between the old road base body 100 and the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205.

[0033] The solution has the following working process: when splicing the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 with the old roadbed body 100, firstly, one group of the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 are sequentially placed at the lower position of the old roadbed body 100, and then another ... The first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 are sequentially placed at the upper position of the old roadbed body 100 in a symmetrical distribution manner, completing the preliminary installation of the two sets of the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205, and then the plurality of engaging rods 301 are sequentially engaged between two adjacent first engaging grooves 300 and second engaging grooves 302, so that the first new roadbed 200, the second new roadbed 201, the third new roadbed 202 , the fourth new roadbed 203 and the fifth new roadbed 205 are connected to the old roadbed body 100, and then a plurality of steel bars 104 are sequentially placed in the positioning holes, and the first concrete 103 is injected into the positioning holes, so that the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 are further fixed to the old roadbed body 100 in the horizontal and vertical directions, and then the mounting frame 500 and the side block 501 are engaged with the mounting groove 403 and the side opening 4 02, so that the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 are connected away from the stability of one end of the old road base body 100, and finally the second concrete 600 is injected into the installation groove 403 and the side port 402, so that the position of the installation frame 500 is fixed, completing the splicing of the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 with the old road base body 100.

[0034] According to the above working process, it can be known that: by setting the old road base body 100, the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 can be staggered when connected to the old road base body 100, thereby improving the tensile strength of the connection between the old road base body 100 and the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205. By setting the first engaging groove 300 and the second engaging groove 302, the old road base body 100 and the first new roadbed 20 0. The second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 can be stably connected, thereby improving the tensile strength of the connection between the old roadbed body 100 and the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205, and avoiding the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 from moving after long-term use, thereby affecting the normal use of the roadbed and pavement after splicing.

[0035] By setting the steel bars 104 and the first concrete 103, the positions of the old road base body 100 and the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 can be fixed in the horizontal and vertical directions, so that the connection between the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 and the old road base body 100 is more stably connected, thereby further improving the tensile strength of the connection between the old road base body 100 and the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205.

[0036] By setting the installation groove 403, the installation frame 500, the side opening 402 and the side block 501, the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 are stably connected away from one end of the old roadbed body 100. By setting the second concrete 600, the position of the installation frame 500 after installation can be limited, thereby avoiding the situation where the installation frame 500 is moved out of the installation groove 403 after long-term use, thereby making the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 more stably connected to the old roadbed body 100, thereby improving the stability of the entire new roadbed.

[0037] Further as Figure 8As shown, the first concrete 103 is injected into the docking hole 102 , and the first concrete 103 is wrapped around the outer periphery of the steel bar 104 .

[0038] By setting the first concrete 103, the connection between the steel bars 104 and the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 is more stably achieved, further improving the stability of the roadbed after splicing.

[0039] Further as Figure 6 and Figure 7 As shown, side openings 402 are respectively formed on two side surfaces of the inner wall of the second opening 401 , and side blocks 501 are respectively fixed on two opposite side surfaces of the outer wall of the mounting frame 500 in the vertical direction, and the side blocks 501 are engaged in the side openings 402 .

[0040] By setting the side opening 402 and the side block 501, the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 are stably connected away from one end of the old roadbed body 100.

[0041] Further as Figure 2 As shown, the second concrete 600 is injected into the installation groove 403 .

[0042] By providing the second concrete 600, the position of the mounting frame 500 after installation can be limited, thereby preventing the mounting frame 500 from being moved out of the mounting groove 403 after long-term use.

[0043] In summary, when the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 are spliced ​​with the old roadbed body 100, firstly, one group of the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 are sequentially placed at the lower part of the old roadbed body 100, and then another group of the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 are sequentially placed at the lower part of the old roadbed body 100. The new roadbed 203 and the fifth new roadbed 205 are placed in the upper part of the old roadbed body 100 in a symmetrical distribution, and the two sets of the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 are preliminarily installed. Then, a plurality of engaging rods 301 are engaged in sequence between two adjacent first engaging grooves 300 and second engaging grooves 302, so that the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 are assembled. The first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 are connected to the old roadbed body 100, and then a plurality of steel bars 104 are sequentially placed in the positioning holes, and the first concrete 103 is injected into the positioning holes, so that the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 are further fixed to the old roadbed body 100 in the horizontal and vertical directions, and then the mounting frame 500 and the side block 501 are engaged with the mounting groove 403 and the side opening 402. The first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 are connected away from one end of the old roadbed body 100 to stabilize the connection. Finally, the second concrete 600 is injected into the installation groove 403 and the side port 402 to fix the position of the installation frame 500, thus completing the splicing of the first new roadbed 200, the second new roadbed 201, the third new roadbed 202, the fourth new roadbed 203 and the fifth new roadbed 205 with the old roadbed body 100.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new and old roadbed pavement splicing structure for a highway project, comprising a foundation (101), characterized in that: An old road base body (100) is fixed to one side of the top surface of the foundation (101); a plurality of first engaging grooves (300) distributed in a stepped manner are provided on the inner side wall of the old road base body (100); a first new roadbed (200), a second new roadbed (201), a third new roadbed (202), a fourth new roadbed (203) and a fifth new roadbed (205) are symmetrically arranged in the old road base body (100); the first new roadbed (200), the second new roadbed (201), the third new roadbed (202), the fourth new roadbed (203) and the fifth new roadbed (205) are respectively provided with second engaging grooves (300) on two adjacent side surfaces close to the old road base body (100). 2), a locking rod (301) is movably engaged between the adjacent first locking groove (300) and the second locking groove (302), and the first new roadbed (200) at the top and bottom is respectively provided with a staggered first opening (400) close to one side, and the second new roadbed (201), the third new roadbed (202), the fourth new roadbed (203) and the fifth new roadbed (205) are respectively provided with a plurality of second openings (401) evenly distributed and matched with the first opening (400) on the top surface, and the first opening (400) and the second opening (401) are connected to form a mounting groove (403), and a mounting frame (500) is engaged in the mounting groove (403).

2. A new and old roadbed pavement splicing structure for highway engineering according to claim 1, characterized in that: A plurality of evenly distributed docking holes (102) are provided on one side of the top surface of the old roadbed body (100), the docking holes (102) pass through the second new roadbed (201), the third new roadbed (202), the fourth new roadbed (203) and the fifth new roadbed (205), and steel bars (104) are arranged in the docking holes (102).

3. A new and old roadbed pavement splicing structure for highway engineering according to claim 2, characterized in that: A first concrete (103) is injected into the butt-jointing hole (102), and the first concrete (103) is wrapped around the outer periphery of the steel bar (104).

4. A new and old roadbed pavement splicing structure for a highway project according to claim 3, characterized in that: Side openings (402) are respectively provided on two side surfaces of the inner wall of the second opening (401), and side blocks (501) are respectively fixed on two opposite side surfaces of the outer wall in the vertical direction of the mounting frame (500), and the side blocks (501) are engaged in the side openings (402).

5. A new and old roadbed pavement splicing structure for highway engineering according to claim 4, characterized in that: The second concrete (600) is injected into the installation groove (403).

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