Novel prefabricated track board base

Abstract

The utility model discloses a novel prefabricated assembly type track plate base, which relates to the technical field of track traffic, and comprises a prefabricated base body arranged at the bottom of a track plate, the base body comprises a base main body part and a convex supporting part which are integrally formed, and bosses are arranged on the base body corresponding to the two ends of the track plate. A vibration reduction layer or a buffer layer is arranged between the base body and the bottom of the track plate, and the protruding supporting parts are distributed at the positions, corresponding to the vibration reduction layer or the buffer layer, of the base body part. The base is designed to be of a prefabricated frame type special-shaped structure, materials can be saved, the weight is reduced, meanwhile, standardized manufacturing can be adopted, the engineering construction time is shortened, and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, in particular to a novel prefabricated assembly type rail plate base. Background Art

[0002] Rail transit runs on the rail system, and transfers the load to the roadbed, bridge or tunnel through the rail, and the rail slab base plays a vital role in it. At present, rail transit has become commonplace in my country. The traditional cast-in-place base and the new prefabricated base method have their own advantages and occupy a large proportion in the field of rail transit. For example, the existing patent document: discloses CN201990905U-a ballastless track slab base concrete pouring construction mold, which includes a side formwork, a pair of adjustable triangular brackets and a pair of liftable inner running wheel devices connected to the outer side of the side formwork, and a liftable outer running wheel device is respectively provided on each adjustable triangular bracket, and a pair of vertically arranged adjustable support rods are installed on the side formwork, and a leveling machine running track is fixedly connected to the upper ends of the two adjustable support rods. This mold is used for traditional cast-in-place base construction. The construction method is: ① Pour the concrete cushion layer on the track line foundation; ② After maintenance, tie the steel mesh cage on the concrete cushion layer; ③ Use the cast-in-place base construction mold to fix the tied steel mesh cage and pour concrete; ④ After the concrete strength is improved, remove the mold.

[0003] Traditional cast-in-place foundations do not require much design and can be constructed with sufficient labor; prefabricated foundations have high construction accuracy, standardized factory production, short construction time, and convenient maintenance. With the development of society, traditional cast-in-place foundations have problems such as shortage of labor resources and increased requirements for engineering construction accuracy; existing prefabricated foundations are heavy and inconvenient to arrange in a confined space, the dense reinforced concrete structure of the foundation causes waste of resources, and the form is single. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects of the track plate base in the prior art and provide a new prefabricated assembled track plate base. The base design adopts a prefabricated frame-type special-shaped structure, which can save material consumption, be standardized in the factory, shorten the construction time, and facilitate maintenance.

[0005] The utility model is realized by the following technical solutions:

[0006] A novel prefabricated and assembled track plate base comprises a base body prefabricated at the bottom of the track plate, the base body comprising an integrally formed base main body portion and a raised support portion, bosses are arranged on the base body corresponding to the two end positions of the track plate, a vibration reduction layer or a buffer layer is arranged between the base body and the bottom of the track plate, and the raised support portion is distributed on the base main body portion at the position corresponding to the vibration reduction layer or the buffer layer.

[0007] In order to further optimize the utility model, the following technical solutions can be preferably used:

[0008] Preferably, the base body is arranged downward, and the raised support portion is arranged upward, and the base body is a flat plate or an arc-shaped smooth panel to facilitate the support of the vibration reduction layer or buffer layer of the track plate.

[0009] Preferably, the base body is arranged upward and the raised support portion is arranged downward, so as to directly transfer the load transferred from the track plate through the vibration-damping layer or the buffer layer downward through the raised support portion, thereby avoiding the formation of bending moment in the prefabricated base.

[0010] Preferably, the top of the boss is flush with the upper surface of the track plate, and the boss is prefabricated integrally with the base body.

[0011] Preferably, a weight-reducing hole is provided on the main body of the base.

[0012] Preferably, 1 to 3 base bodies are provided along the length direction of each track plate, and a suitable number can be arranged according to the supporting force to reduce the amount of concrete used.

[0013] Preferably, the reinforcement type of the base body is one of ordinary reinforced concrete or one-way prestressed concrete.

[0014] Preferably, the height of the raised support portion matches the shape of the tunnel floor in the width direction of the base body to adapt to tunnel types of different shapes and sizes.

[0015] Preferably, a plurality of the raised support portions are arranged along the length direction of the base body portion.

[0016] Preferably, the raised support portion is arranged between the base body and the track plate, and a longitudinal drainage groove is opened through the base body along the length direction.

[0017] The beneficial effects of the utility model are:

[0018] 1) Rational layout of this product

[0019] According to the design, this product rationally plans the steel mesh cage and forms a prefabricated base with concrete while ensuring strength. It is easy to transport, reduces the thickness of the original cast-in-place layer, and improves construction efficiency.

[0020] (2) Save resources

[0021] When designing this product, the reinforced concrete structure in the areas that do not need to be completely compacted is removed to form a "base body + raised support" structure. On the one hand, it forms a whole with the bottom cushion layer, and on the other hand, it provides sufficient supporting force for the top sleepers, track plates or support columns.

[0022] (3) Change the prefabricated track plate base type according to the application

[0023] This product adopts two forms: "raised support below the base body" and "raised support above the base body" to meet the construction requirements of different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the use of the track plate base in Example 1 and Example 2;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the track plate base in Example 1;

[0026] Figure 3 It is a side view of the track plate base in Example 1;

[0027] Figure 4 It is a detailed cross-sectional view of each part in Example 1;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the track plate base in Example 2;

[0029] Figure 6 It is a side view of the track plate base in Example 2;

[0030] Figure 7 It is a detailed cross-sectional view of each part in Example 2;

[0031] Figure 8 It is a schematic diagram of the use of the track plate base in Example 3 and Example 4;

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of the track plate base in Example 3;

[0033] Fig.10 It is a side view of the track plate base in Example 3;

[0034] Fig.11 It is a detailed cross-sectional view of each part in Example 3;

[0035] Fig.12 It is a schematic diagram of the three-dimensional structure of the track plate base in Example 4;

[0036] Fig.13 It is a side view of the track plate base in Example 4;

[0037] Fig.14 It is a detailed cross-sectional view of each part in Example 4;

[0038] Fig.15 It is a schematic diagram of the use of the track plate base in Example 5 and Example 6;

[0039] Fig.16 It is a schematic diagram of the three-dimensional structure of the track plate base in Example 5;

[0040] Fig.17 It is a side view of the track plate base in Example 5;

[0041] Fig.18 It is a detailed cross-sectional view of each part in Example 5;

[0042] Fig.19 It is a schematic diagram of the three-dimensional structure of the track plate base in Example 6;

[0043] Fig. 20 is a side view of the track plate base in Example 6;

[0044] Fig.21 It is a detailed cross-sectional view of each part in Example 6;

[0045] Fig. 22 It is a schematic diagram of the use of the track plate base in Example 7 and Example 8;

[0046] Fig.23 It is a schematic diagram of the three-dimensional structure of the track plate base in Example 7;

[0047] Fig.24 is a side view of the track plate base in Example 7;

[0048] Fig.25 It is a detailed cross-sectional view of each part in Example 7;

[0049] Fig.26 It is a schematic diagram of the three-dimensional structure of the track plate base in Example 8;

[0050] Fig. 27 is a side view of the track plate base in Example 8;

[0051] Fig.28 It is a detailed cross-sectional view of each part in Example 8;

[0052] Among them: 1-rectangular tunnel; 2-track plate; 3-base body; 4-rail; 5-base main body; 6-raised support part; 7-weight reduction hole; 8-boss; 9-circular tunnel; 10-drainage trough. DETAILED DESCRIPTION

[0053] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0055] A novel prefabricated and assembled track plate base comprises a prefabricated base body installed at the bottom of a track plate 2, wherein the track plate is used to install a rail 4, the base body 3 comprises an integrally formed base main body 5 and a raised support portion 6, bosses 8 are installed on the base body corresponding to the two ends of the track plate, wherein the top of the boss is generally kept substantially flush with the upper surface of the track plate, and the boss is prefabricated integrally with the base body; in addition, a weight-reducing hole 7 is opened on the base main body 5, which reduces the weight and the amount of concrete used while ensuring the supporting strength.

[0056] A vibration-damping layer or a buffer layer is designed between the base body 3 and the bottom of the track plate, and the raised support parts 7 are distributed on the base body at positions corresponding to the vibration-damping layer or the buffer layer; the arrangement is as follows: the base body is arranged downward and the raised support parts are arranged upward, and the base body is a flat plate or an arc-shaped smooth panel. This arrangement is convenient for supporting the vibration-damping layer or the buffer layer of the track plate; or the following arrangement is adopted, the base body is arranged upward and the raised support parts are arranged downward, which is used to directly transfer the load transferred from the track plate through the vibration-damping layer or the buffer layer downward through the raised support parts, so as to avoid the formation of bending moment in the prefabricated base.

[0057] As a preferred embodiment, 1 to 3 base bodies are provided along the length direction of each track plate, and a suitable number can be arranged according to the supporting force to reduce the amount of concrete used.

[0058] As a preferred embodiment, the reinforcement type of the base body is one of ordinary reinforced concrete or one-way prestressed concrete.

[0059] As a preferred embodiment, the height of the raised support portion 6 matches the shape of the tunnel floor in the width direction of the base body to adapt to tunnel types of different shapes and sizes.

[0060] As a preferred embodiment, the raised support portion is designed between the base body and the track plate, and a longitudinal drainage groove is provided on the base body along the length direction.

[0061] As a preferred embodiment, the base body 5 is connected to the bottom of the track plate 2, and a plurality of raised support portions 6 are evenly installed.

[0062] In addition, compared with the existing similar technologies: CN216107838U-a prefabricated base plate for roadbed structure, which includes a base plate body, and the base plate body is provided with bearing surfaces on the top of both sides along the longitudinal direction, and the bearing surfaces are inclined surfaces gradually rising from the inside to the outside. Compared with it, this product adopts a frame-type base body + a raised supporting part to form a high-strength supporting member. Compared with the inclined surface, the flat surface has a lighter weight and a smaller volume, which is more convenient to transport and install, and more economical.

[0063] Embodiment 1:

[0064] like Figure 1 to Figure 4 As shown, this embodiment is based on the construction of a rectangular tunnel 1, wherein the main body of the base is a flat plate as a whole, the main body of the base is connected to the bottom of the track plate, and a plurality of raised support parts are evenly installed, and the specific raised support parts are symmetrically distributed on both sides of the main body of the base. In this embodiment, a plurality of base bodies are arranged at intervals at the bottom of the track plate, and a suitable number can be arranged according to the support force to reduce the amount of concrete used.

[0065] Embodiment 2:

[0066] like Figure 1 , Figure 5 to Figure 7 The embodiment shown is based on the construction of a rectangular tunnel 1. The difference between this embodiment and Embodiment 1 is that in this embodiment, the base body is arranged at the bottom of the track plate, and the length of the base body matches the length of the track plate to ensure the structural stability of the overall base body. The remaining structural designs are the same as those in Embodiment 1 and will not be repeated.

[0067] Embodiment 3:

[0068] like Figure 8 to Figure 11As shown, this embodiment is based on the construction of a circular tunnel 9, wherein the main body of the base is a flat plate as a whole, the main body of the base is connected to the bottom of the track plate, the height value of the raised support portion is adapted to the shape of the tunnel bottom plate in the width direction of the main body of the base, so as to adapt to tunnel types of different shapes and sizes, and the specific raised support portions are symmetrically distributed on both sides of the main body of the base, wherein a plurality of base bodies are arranged at intervals at the bottom of the track plate, and a suitable number can be arranged according to the support force to reduce the amount of concrete used.

[0069] Embodiment 4:

[0070] like Figure 8 , Figure 12 to Figure 14 As shown, this embodiment is based on the construction of a circular tunnel 9. The difference between this embodiment and Embodiment 3 is that in this embodiment, the base body is arranged at the bottom of the track plate, and the length of the base body matches the length of the track plate to ensure the structural stability of the overall base body. The rest of the structural design is the same as that in Embodiment 1 and will not be repeated.

[0071] Embodiment 5:

[0072] like Figure 15 to Figure 18 As shown, this embodiment is based on the construction of a rectangular tunnel 1. The raised support portion is arranged between the base body and the track plate. A drainage groove is opened on the base body along the length direction. In this embodiment, a plurality of base bodies are arranged at intervals at the bottom of the track plate. The appropriate number can be arranged according to the support force to reduce the amount of concrete. The base body is designed as a flat plate to adapt to the straight line shape of the bottom of the rectangular tunnel.

[0073] Embodiment 6:

[0074] like Fig.15 , Figure 19 to Figure 21 As shown, this embodiment is based on the construction of a rectangular tunnel 1. The difference between this embodiment and Embodiment 5 is that in this embodiment, the base body is arranged at the bottom of the track plate 2, and the length of the base body matches the length of the track plate 2 to ensure the structural stability of the overall base body. The rest of the structural design is the same as that in Embodiment 5 and will not be repeated.

[0075] Embodiment 7:

[0076] like Fig. 22 , Figure 23 to Figure 25 As shown, this embodiment is based on the construction of a circular tunnel 9, and the raised support portion is arranged between the base body and the track plate. The specific raised support portions are symmetrically distributed on both sides of the base body. A drainage groove 10 is opened on the base body along the length direction. In this embodiment, a plurality of base bodies are arranged at intervals at the bottom of the track plate, and a suitable number can be arranged according to the supporting force to reduce the amount of concrete used, and the bottom of the base body is designed to be arc-shaped to adapt to the bottom arc shape of the circular tunnel.

[0077] Embodiment 8:

[0078] like Fig. 22 , Figure 26 to Figure 28 As shown, this embodiment is based on the construction of a circular tunnel 9. The difference between this embodiment and Embodiment 7 is that in this embodiment, the base body is arranged at the bottom of the track plate, and the length of the base body matches the length of the track plate to ensure the structural stability of the overall base body. The rest of the structural design is the same as that in Embodiment 7 and will not be repeated.

[0079] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of prefabricated track slab base, characterized by: It includes a prefabricated base body arranged at the bottom of the track plate, the base body includes an integrally formed base main body part and a raised support part, the base body is provided with bosses corresponding to the two end positions of the track plate, a vibration reduction layer or a buffer layer is provided between the base body and the bottom of the track plate, and the raised support part is distributed on the base main body at the position corresponding to the vibration reduction layer or the buffer layer.

2. The novel prefabricated track slab base according to claim 1 is characterized in that: The base body is arranged downward, and the raised support portion is arranged upward. The base body is a flat plate or an arc-shaped light panel, which is used to support the vibration reduction layer or buffer layer of the track plate.

3. The novel prefabricated track slab base according to claim 1 is characterized in that: The base body is arranged upward, and the raised support portion is arranged downward, so as to directly transfer the load transferred from the track plate through the vibration reduction layer or the buffer layer downward through the raised support portion.

4. A novel prefabricated track slab base according to any one of claims 2 or 3, characterized in that: The top of the boss is kept flush with the upper surface of the track plate, and the boss is prefabricated integrally with the base body.

5. A novel prefabricated track slab base according to any one of claims 2 or 3, characterized in that: The base body is provided with a weight-reducing hole.

6. A novel prefabricated track slab base according to any one of claims 2 or 3, characterized in that: The base body is provided with 1 to 3 pieces along the length direction of each track plate.

7. A novel prefabricated track slab base according to any one of claims 2 or 3, characterized in that: The reinforcement type of the base body is one of ordinary reinforced concrete or one-way prestressed concrete.

8. A novel prefabricated assembled track slab base according to any one of claims 2 or 3, characterized in that: The height of the raised support portion matches the shape of the tunnel floor in the width direction of the base body.

9. A novel prefabricated track slab base according to any one of claims 2 or 3, characterized in that: A plurality of the raised support portions are arranged along the length direction of the base body portion.

10. The novel prefabricated track slab base according to claim 2 is characterized in that: The raised support portion is arranged between the base body and the track plate, and a longitudinal drainage groove is provided through the base body along the length direction.

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