Ballastless track roadbed slab construction joint chiseling-free device

Abstract

The utility model discloses a chiseling-free device for a construction joint of a ballastless track roadbed slab, which belongs to the technical field of roadbed slab construction and comprises a supporting structure frame and a closing-up net structure fixed on the supporting structure frame. The closing-up net structure comprises a metal mesh, a through hole and a convex part which are positioned on the metal mesh, and an abdicating hole formed in the metal mesh, and the convex part is positioned on the right plate surface of the metal mesh; the supporting structure frame comprises angle steel, at least two vertical steel bars located on the bottom plate face of the angle steel and at least two transverse steel bars bundled or welded to the vertical steel bars at equal intervals, the transverse steel bars and the vertical steel bars integrally form a transverse supporting frame of the closing-in net, and the outer protruding part is located on the left side of the transverse supporting frame of the closing-in net. Due to the structure, the labor intensity is reduced, the construction efficiency is improved, and the construction cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the track bed plate construction technical field, provide a kind of track bed plate construction joint of reducing labour intensity, improve construction efficiency and reduce construction cost's ballastless track and avoid chiseling device. BACKGROUND

[0002] With the national high-speed rail construction, high-speed railway ballastless track is mostly (CRTS I type, CRTS II type, CRTS III type) double-block type and slab type ballastless track, and the ballastless track structure design is divided into bridge section, roadbed section and tunnel section, the roadbed section CRTS I type double-block type ballastless track structure is composed of steel rail, fastener, double-block type sleeper, track bed plate and supporting layer from top to bottom, and the tunnel section CRTS I type double-block type ballastless track structure is composed of steel rail, fastener, double-block type sleeper, track bed plate and inverted arch filling surface from top to bottom.

[0003] When the track bed plate is constructed in roadbed section and tunnel section, due to the process reasons, there is a track bed plate construction joint in construction, and it is impossible to avoid the appearance of new and old concrete joint surface, the chiseling device is used to chisel the concrete joint surface, the connection quality of new and old concrete surface is improved, and the traditional chiseling process not only consumes resources, but also pollutes the bottom of track bed plate by the concrete fragments generated by chiseling, and the roadbed section supporting layer / tunnel inverted arch filling surface needs to be cleaned twice. The existing chiseling construction has low construction efficiency, high resource input and high labor intensity. CONTENT OF UTILITY MODEL

[0004] Therefore, the utility model aims to provide a kind of track bed plate construction joint of ballastless track and avoid chiseling device, to solve the technical problems of low construction efficiency, high resource input and high labor intensity.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The utility model provides a kind of track bed plate construction joint of ballastless track and avoid chiseling device, wherein: including support structure frame, the closing net structure fixed on support structure frame;

[0007] The closing net structure includes metal mesh, through hole and outer convex part on the metal mesh, the outer convex part is located on the right plate surface of the metal mesh, and the clearance hole is arranged on the metal mesh;

[0008] The support structure frame includes angle steel, at least two vertical steel bars at the bottom plate surface of the angle steel, at least two horizontal steel bars are tied or welded at equal intervals on the vertical steel bar, the horizontal steel bar and the vertical steel bar form a closing net horizontal support frame, and the outer convex part is located on the left side of the closing net horizontal support frame.

[0009] To ensure the stability of the connection between the closing mesh structure and the supporting frame, the above solution further includes: the metal mesh sheet and the horizontal support frame of the closing mesh are bundled or welded together.

[0010] To ensure the top positioning of the closing mesh structure, in the above scheme, the metal mesh is further bound or welded to the vertical and / or horizontal reinforcing bars of the closing mesh transverse support frame.

[0011] To ensure the positioning of the slab surface of the mesh structure, in the above scheme, further: both the vertical and horizontal reinforcing bars are four in number.

[0012] The beneficial effects of this utility model are:

[0013] (1) Easy to process and low manufacturing cost.

[0014] (2) The application of this device avoids traditional complex processes, optimizes procedures, effectively improves the connection quality of concrete surfaces in the construction joints of track slabs, increases construction efficiency, reduces the investment in chisel-free devices and human resources, and also reduces the labor intensity of construction workers.

[0015] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0017] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0018] Fig. 2 This is a schematic diagram of the structure of the closing mesh structure of this utility model at the plate surface;

[0019] Fig. 3 This is a schematic diagram of the structure of this utility model in use;

[0020] Reference numerals: 1. Supporting structure frame; 2. Closing mesh structure; 3. Concrete layer of tunnel or roadbed section; 4. Longitudinal reinforcement of track slab; 5. First-cast section of track slab; 6. Construction joint end; 7. Second-cast section of track slab; 101. Angle steel; 102. Vertical reinforcement; 103. Horizontal reinforcement; 201. Metal mesh; 202. Through hole; 203. Outward protrusion; 204. Clearance hole. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Where there is no conflict, the following embodiments and features can be combined with each other.

[0022] Furthermore, the reference numbers and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.

[0023] like Figs. 1 to 3 As shown, the present invention relates to a ballastless track slab construction joint roughening device, which includes a support structure frame 1 and a closing mesh structure 2 fixed on the support structure frame 1.

[0024] The closing mesh structure 2 includes a metal mesh 201, a through hole 202 and an outward protrusion 203 on the metal mesh 201, the outward protrusion 203 being located on the right plate surface of the metal mesh 201, and a clearance hole 204 provided on the metal mesh 201.

[0025] The supporting structure frame 1 includes an angle steel 101, at least two vertical reinforcing bars 102 located at the bottom surface of the angle steel 101, and at least two horizontal reinforcing bars 103 equidistantly tied or welded to the vertical reinforcing bars 102. The horizontal reinforcing bars 103 and the vertical reinforcing bars 102 integrally form a converging mesh horizontal support frame. The outward protrusion 203 is located on the left side of the converging mesh horizontal support frame. In this embodiment, the angle steel 101 has a size of 70*70mm, and both the horizontal reinforcing bars 103 and the vertical reinforcing bars 102 are made of Φ14HRB400 threaded steel. In specific implementation, the lower end of the vertical reinforcing bar 102 is embedded in the concrete layer 3 of the tunnel or roadbed section, and the depth of the anchoring hole of the vertical reinforcing bar 102 is 5cm. The vertical reinforcing bar 102 does not intrude into the protective layer of the concrete layer 3 of the tunnel or roadbed section. The two outer end faces of the metal mesh 201 of the closing mesh structure 2 are tightly pressed against the inner plate surface of the square steel of the casting template structure, so as to stop the grouting and seal the track bed slab during the subsequent casting section and prevent the metal mesh 201 of the closing mesh structure 2 from moving during the casting process. The diameter of the through holes 202 of the closing mesh structure 2 is 1cm and the spacing is 1cm.

[0026] To ensure the stability of the connection between the closing mesh structure 2 and the supporting structure frame 1, in the above embodiment, preferably, the metal mesh 201 is bundled or welded to the horizontal support frame of the closing mesh as a whole.

[0027] To ensure the top positioning of the closing mesh structure 2, in the above embodiment, preferably, the metal mesh 201 is tied or welded together with the vertical steel bars 102 and / or horizontal steel bars 103 of the closing mesh transverse support frame.

[0028] To ensure the positioning of the slab surface of the closing mesh structure 2, in the above embodiment, preferably, there are four vertical steel bars 102 and four horizontal steel bars 103.

[0029] In the above embodiments, all components are commercially available products.

[0030] The usage process of the structure described above is as follows: The clearance hole 204 of the closing mesh structure 2 is inserted into the longitudinal reinforcing bar 4 of the track bed slab on the first-cast section 5, so that the closing mesh structure 2 is located at the construction joint end 6. Next, prepare all the materials for the support frame 1, and use an electric drill to drill holes 5cm deep and spaced 50cm apart in the concrete layer 3 of the tunnel or roadbed section. Install four vertical reinforcing bars 102, and then tie four horizontal reinforcing bars 103 to the four vertical reinforcing bars 102 with tie wire. The horizontal reinforcing bars 103 are spaced 6cm apart vertically. The support frame 1 is installed close to the closing mesh structure 2. Finally, the angle steel 101 is fixed to the longitudinal reinforcing bar of the exposed extended section of the track bed slab 7. One side of the angle steel 101 is used as the side formwork of the track bed slab 7. During the concrete pouring of the track bed slab 7, the distance between the vibrator and the closing mesh structure 2 is more than 15cm to avoid damage to the closing mesh structure 2. After curing, the angle steel 101, vertical reinforcing bars 102, and horizontal reinforcing bars 103 of the supporting structure frame 1 are removed, leaving the closing mesh structure 2 within the poured track bed slab concrete. The entire solution reduces labor intensity, improves construction efficiency, and lowers construction costs.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for eliminating the need for roughening the construction joints of ballastless track slabs, characterized in that: Includes a support frame (1) and a closing mesh structure (2) fixed on the support frame (1); The closing mesh structure (2) includes a metal mesh sheet (201), a through hole (202) and an outward protrusion (203) on the metal mesh sheet (201), the outward protrusion (203) being located on the right plate surface of the metal mesh sheet (201), and a clearance hole (204) provided on the metal mesh sheet (201); The supporting structure frame (1) includes an angle steel (101), at least two vertical steel bars (102) located on the bottom surface of the angle steel (101), and at least two horizontal steel bars (103) equidistantly tied or welded to the vertical steel bars (102). The horizontal steel bars (103) and the vertical steel bars (102) form a closed-end mesh horizontal support frame. The outward protrusion (203) is located on the left side of the closed-end mesh horizontal support frame.

2. The ballastless track slab construction joint roughening-free device according to claim 1, characterized in that: The metal mesh (201) is tied or welded together with the horizontal support frame of the closing mesh.

3. The ballastless track slab construction joint roughening-free device according to claim 2, characterized in that: The metal mesh (201) is tied or welded together with the vertical steel bars (102) and / or horizontal steel bars (103) of the horizontal support frame of the closing mesh.

4. The ballastless track slab construction joint roughening-free device according to claim 3, characterized in that: There are four vertical reinforcing bars (102) and four horizontal reinforcing bars (103).

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