Anti-leakage device for subway turnout switch machine pit

Abstract

The utility model discloses a subway turnout switch machine pit water leakage prevention device which comprises a water stop steel plate box and a plurality of reinforcing ribs, the water stop steel plate box is of a hollow structure, the reinforcing ribs are arranged on the inner side and the outer side of the water stop steel plate box at intervals, each reinforcing rib is welded to the water stop steel plate box, and the reinforcing ribs are connected with the water stop steel plate box. The shape of the water stop steel plate box is matched with that of the point switch pit, the water stop steel plate box is located in the structural bottom plate and separates the point switch pit from the structural bottom plate, and concrete is poured between the water stop steel plate box and the point switch pit and between the water stop steel plate box and the structural bottom plate. The water stop steel plate box is made of the water stop steel plate, the water stop steel plate box is matched with the shape of the point switch pit, the water stop steel plate box can be conveniently installed in the structural bottom plate, the point switch pit is separated from the structural bottom plate, and the water leakage prevention characteristic of the water stop steel plate is utilized, so that the water leakage problem of the point switch pit is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, in particular to a water leakage prevention device for a subway turnout switch pit. Background Art

[0002] At present, when constructing the switch pit of the turnout roadbed of the subway line, the switch pit template is installed and then poured with concrete in one go, and the PTN waterproof sealing material is applied to the surface of the switch pit concrete for waterproofing. First, since there is plain concrete between the switch pit and the structural bottom plate, when water leakage occurs in the structural bottom plate, the concrete between the switch pit and the structural bottom plate has little effect on blocking the leakage; secondly, the PTN waterproof material applied on the surface of the switch pit has a waterproof effect on open water, but has little effect on preventing leakage; finally, leakage can easily cause the PTN waterproof sealing layer to fall off and peel off, affecting the waterproof effect of the waterproof layer on the surface of the switch pit. Therefore, it is necessary to design a device with anti-leakage function. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the above-mentioned prior art and to provide a subway turnout switch pit anti-leakage device, in which a water-stop steel plate is used to make a water-stop steel plate box, the water-stop steel plate box matches the shape of the switch pit, and the water-stop steel plate box is conveniently installed in the structural bottom plate to separate the switch pit from the structural bottom plate, and the anti-leakage property of the water-stop steel plate is utilized to solve the water leakage problem of the switch pit.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a subway turnout switch pit anti-leakage device, including a water-stop steel plate box and reinforcing ribs, the water-stop steel plate box is a hollow structure, the number of the reinforcing ribs is multiple, and the multiple reinforcing ribs are spaced apart on the inner and outer sides of the water-stop steel plate box, each of the reinforcing ribs is welded to the water-stop steel plate box, the shape of the water-stop steel plate box matches the shape of the switch pit, the water-stop steel plate box is located in the structural bottom plate, the water-stop steel plate box separates the switch pit from the structural bottom plate, and concrete is poured between the water-stop steel plate box and the switch pit, and between the water-stop steel plate box and the structural bottom plate.

[0005] Preferably, the reinforcing rib is an L-shaped structure, the lateral end of the reinforcing rib is in contact with and welded to the surface of the waterstop steel plate box, and the vertical end of the reinforcing rib is perpendicular to the waterstop steel plate box.

[0006] Preferably, the spacing distance between two adjacent reinforcing ribs is 150 mm, the transverse end length of the reinforcing rib is 20 mm, and the vertical end height of the reinforcing rib is 50 mm.

[0007] Preferably, the water-stop steel plate box is made of a 5 mm thick water-stop steel plate.

[0008] Preferably, the reinforcing ribs are made of HPB300 steel bars with a diameter of 10 mm.

[0009] Preferably, the water-stop steel plate box is rolled into shape in one step.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. The utility model uses a water-stop steel plate to make a water-stop steel plate box. The water-stop steel plate box matches the shape of the switch pit, which is convenient for installing the water-stop steel plate box in the structural bottom plate to separate the switch pit from the structural bottom plate. The anti-leakage property of the water-stop steel plate is utilized to solve the water leakage problem of the switch pit.

[0012] 2. The utility model casts a water-stop steel plate box between the switch pit and the structural bottom plate, thereby preventing leakage water in the structural bottom plate from seeping into the switch pit, preventing leakage water from damaging equipment in the switch pit, and reducing equipment maintenance costs.

[0013] 3. The utility model has L-shaped reinforcement ribs welded on the waterstop steel plate box, the horizontal ends of the L-shaped reinforcement ribs are welded to the waterstop steel plate box, and the vertical ends of the L-shaped reinforcement ribs are perpendicular to the waterstop steel plate box. After concrete pouring, the vertical ends of the L-shaped reinforcement ribs are buried in the concrete, thereby improving the stability of the waterstop steel plate box.

[0014] The present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a schematic diagram of the positional relationship between the utility model and the switch pit;

[0017] Figure 3 It is a schematic structural diagram of the positional relationship between the utility model, the switch pit and the structural bottom plate.

[0018] Description of reference numerals:

[0019] 1—waterproof steel plate box; 2—reinforcement ribs; 3—switch pit;

[0020] 4—Structural base plate. DETAILED DESCRIPTION

[0021] like Figures 1 to 3As shown, a subway turnout switch pit anti-leakage device includes a water-stop steel plate box 1 and reinforcing ribs 2. The water-stop steel plate box 1 is a hollow structure. The number of reinforcing ribs 2 is multiple. The multiple reinforcing ribs 2 are spaced apart on the inner and outer sides of the water-stop steel plate box 1. Each reinforcing rib 2 is welded to the water-stop steel plate box 1. The shape of the water-stop steel plate box 1 matches the shape of the switch pit 3. The water-stop steel plate box 1 is located in the structural bottom plate 4. The water-stop steel plate box 1 separates the switch pit 3 from the structural bottom plate 4. Concrete is poured between the water-stop steel plate box 1 and the switch pit 3, and between the water-stop steel plate box 1 and the structural bottom plate 4.

[0022] In order to solve the water leakage problem of the switch pit of the underground urban rail line, the present application installs an anti-leakage device on the outside of the switch pit 3 when casting the turnout, and solves the water leakage problem of the switch pit 3 by the sealing and integrity of the water-stop steel plate box 1 in the anti-leakage device.

[0023] In this embodiment, the water-stop steel plate box 1 is a hollow structure with an open top. The water-stop steel plate box 1 is rolled based on the position of the switch pit 3 and the size of the switch pit 3, and then the reinforcing ribs 2 are welded on the inner and outer sides of each surface of the water-stop steel plate box 1. The water-stop steel plate box 1 is tested for its sealing performance. The water-stop steel plate box 1 is filled with water, and the water-stop steel plate box 1 is continuously observed for water leakage. If there is no water leakage, the water-stop steel plate box 1 has good sealing performance and can be used. The water-stop steel plate box 1 is placed in the structural base plate 4. Since each surface of the water-stop steel plate box 1 is welded with Reinforcement rib 2, therefore, there is a reinforcement rib 2 between the water-stop steel plate box 1 and the structural bottom plate 4. When pouring concrete, concrete flows into the space between the water-stop steel plate box 1 and the structural bottom plate 4, and the space between the water-stop steel plate box 1 and the structural bottom plate 4 is completely filled. The reinforcement rib 2 on the outside of the water-stop steel plate box 1 is buried in the concrete between the water-stop steel plate box 1 and the structural bottom plate 4. At the same time, concrete is poured between the water-stop steel plate box 1 and the switch pit 3. Since the inner and outer surfaces of the water-stop steel plate box 1 are welded with reinforcement ribs 2, the water-stop steel plate box 1 and the switch pit 3 are connected. There is a reinforcing rib 2 between them, and the height difference between the side wall of the water-stop steel plate box 1 and the side wall of the switch pit 3 is within 50mm, that is, after the switch pit 3 is placed in the water-stop steel plate box 1, the top of its side wall is 50mm higher than the top of the side wall of the water-stop steel plate box 1 at most, and concrete flows into between the water-stop steel plate box 1 and the switch pit 3, filling the space between the water-stop steel plate box 1 and the switch pit 3 completely, and the reinforcing rib 2 on the inside of the water-stop steel plate box 1 is buried in the concrete between the water-stop steel plate box 1 and the switch pit 3, and the reinforcing ribs 2 on the inside and outside of the water-stop steel plate box 1 are buried in the concrete. In the constructed concrete, the stability of the connection between the water-stop steel plate box 1 and the concrete is increased, which plays an anchoring role. The water-stop steel plate box 1 is cast between the structural base plate 4 and the switch pit 3. After the concrete solidifies, the water-stop steel plate box 1 forms a waterproof barrier, which can prevent moisture in the structural base plate 4 from penetrating into the water-stop steel plate box 1 from the wall cracks or other tiny pores. When water leakage occurs in the structural base plate 4, since the water-stop steel plate box 1 has anti-leakage characteristics, the water leakage path can be blocked or the water leakage path can be extended through the water-stop steel plate box 1, thereby achieving an anti-seepage effect.

[0024] The reinforcing rib 2 is an L-shaped structure, the transverse end of the reinforcing rib 2 is in contact with and welded to the surface of the water-stop steel plate box 1 , and the vertical end of the reinforcing rib 2 is perpendicular to the water-stop steel plate box 1 .

[0025] In this embodiment, the reinforcing rib 2 is an L-shaped structure, and the inner and outer surfaces of the waterstop steel plate box 1 are welded with reinforcing ribs 2. When the waterstop steel plate box 1 is poured with concrete, the vertical end of the reinforcing rib 2 perpendicular to the surface of the waterstop steel plate box 1 is buried in the concrete, thereby improving the stability of the anchoring of the waterstop steel plate box 1 and the concrete.

[0026] In another possible embodiment, the reinforcement rib 2 is a hollow square structure, the bottom of the reinforcement rib 2 is contacted and welded with the surface of the waterstop steel plate box 1, the sides of the reinforcement rib 2 are perpendicular to the surface of the waterstop steel plate box 1, and the top away from the waterstop steel plate box 1 is parallel to the surface of the waterstop steel plate box 1. After the waterstop steel plate box 1 is poured with concrete, the sides and top of the reinforcement rib 2 are buried in the concrete, which increases the contact area between a single reinforcement rib 2 and the concrete, and can improve the stability of the anchoring of the waterstop steel plate box 1 and the concrete.

[0027] The spacing distance between two adjacent reinforcing ribs 2 is 150 mm, the transverse end length of the reinforcing rib 2 is 20 mm, and the vertical end height of the reinforcing rib 2 is 50 mm.

[0028] In this embodiment, the interval between two adjacent reinforcing ribs 2 is set to 150mm, which reduces the cost while ensuring the stability of the anchoring between the water-stop steel plate box 1 and the concrete, and avoids the interval between two adjacent reinforcing ribs 2 being too small, which increases the required number of reinforcing ribs 2, or the interval between two adjacent reinforcing ribs 2 being too large, which affects the anchoring effect between the water-stop steel plate box 1 and the concrete. The side wall of the lateral end of the reinforcing rib 2 is welded to the water-stop steel plate box 1, so that the vertical end of the reinforcing rib 2 can be perpendicular to the water-stop steel plate box 1. When pouring concrete, the vertical end of the reinforcing rib 2 is buried in the concrete. The reinforcing rib 2 with a lateral end of 20mm and a vertical end of 50mm can effectively ensure the thickness of the concrete protective layer on the upper and lower sides of the water-stop steel plate box 1 while increasing the anchoring effect between the water-stop steel plate box 1 and the concrete.

[0029] The water-stop steel plate box 1 is made of a 5 mm thick water-stop steel plate.

[0030] The water-stop steel plate box 1 is formed by rolling a water-stop steel plate, so as to utilize the anti-leakage property of the water-stop steel plate to achieve the purpose of preventing water leakage.

[0031] The reinforcing rib 2 is made of HPB300 (Hot-rolled Plain Bar 300, a first-class steel bar with a yield strength of 300 MPa) steel bar with a diameter of 10 mm.

[0032] The water-stop steel plate box 1 is rolled into shape in one step.

[0033] The one-time roll forming of the water-stop steel plate box 1 facilitates ensuring the sealing of the water-stop steel plate box 1 .

[0034] In another possible embodiment, the waterstop steel plate box 1 is welded by multiple waterstop steel plates, the multiple waterstop steel plates include a bottom plate and side plates, the multiple side plates are vertically welded to the edges of the bottom plate, and the contact parts of every two adjacent side walls are welded. After welding, the waterstop steel plate box 1 is subjected to a sealing test.

[0035] When in use, the size of the waterstop steel plate box 1 is determined based on the position of the switch pit 3, the size of the switch pit 3 and the design structural height of the turnout, and the waterstop steel plate box 1 is rolled to make the shape of the waterstop steel plate box 1 match the shape of the switch pit 3, and then the inner and outer surfaces of the waterstop steel plate box 1 are welded with L-shaped reinforcement ribs 2 at intervals, so that the lateral ends of the L-shaped reinforcement ribs 2 are welded to the waterstop steel plate box 1, and the vertical ends of the L-shaped reinforcement ribs 2 are perpendicular to the waterstop steel plate box 1, and then the waterstop steel plate box 1 is tested for sealing, and the waterstop steel plate box 1 is continuously observed for a fixed time to see if there is any water leakage, to ensure that the waterstop steel plate box 1 used has good sealing and reduces the later maintenance In order to improve the cost protection, after the sealing test of the waterstop steel plate box 1 is completed, the waterstop steel plate box 1 is hoisted to the corresponding installation position, and the position of the waterstop steel plate box 1, the switch pit 3, and the structural bottom plate 4 are adjusted. After the adjustment is completed, concrete is poured on the inner and outer sides of the waterstop steel plate box 1 at the same time, and the stability of the anchoring of the waterstop steel plate box 1 and the concrete is strengthened by the vertical end of the L-shaped reinforcement rib 2. The vertical end of the L-shaped reinforcement rib 2 is completely buried in the concrete. The water leakage problem of the switch pit 3 is solved by the waterstop steel plate box 1, and the position of the waterstop steel plate box 1 is fixed by the reinforcement rib 2, so as to achieve good contact between the waterstop steel plate box 1 and the concrete, and the waterstop steel plate box 1 is stably anchored in the concrete.

[0036] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural transformation made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A water leakage prevention device for a subway turnout pit, characterized in that: The invention comprises a water-stop steel plate box (1) and reinforcing ribs (2); the water-stop steel plate box (1) is a hollow structure; the number of the reinforcing ribs (2) is multiple; the multiple reinforcing ribs (2) are arranged at intervals on the inner side and the outer side of the water-stop steel plate box (1); each reinforcing rib (2) is welded to the water-stop steel plate box (1); the shape of the water-stop steel plate box (1) matches the shape of the switch pit (3); the water-stop steel plate box (1) is located in the structural bottom plate (4); the water-stop steel plate box (1) separates the switch pit (3) from the structural bottom plate (4); concrete is poured between the water-stop steel plate box (1) and the switch pit (3) and between the water-stop steel plate box (1) and the structural bottom plate (4).

2. A subway turnout pit anti-leakage device according to claim 1, characterized in that: The reinforcing rib (2) is an L-shaped structure, the transverse end of the reinforcing rib (2) is contact-welded with the surface of the water-stop steel plate box (1), and the vertical end of the reinforcing rib (2) is perpendicular to the water-stop steel plate box (1).

3. A subway turnout pit anti-leakage device according to claim 2, characterized in that: The spacing distance between two adjacent reinforcing ribs (2) is 150 mm, the transverse end length of the reinforcing rib (2) is 20 mm, and the vertical end height of the reinforcing rib (2) is 50 mm.

4. A subway turnout pit anti-leakage device according to claim 1, characterized in that: The water-stop steel plate box (1) is made of a 5 mm thick water-stop steel plate.

5. A subway turnout pit anti-leakage device according to claim 2, characterized in that: The reinforcing ribs (2) are made of HPB300 steel bars with a diameter of 10 mm.

6. A subway turnout pit anti-leakage device according to claim 1, characterized in that: The water-stop steel plate box (1) is formed by rolling in one step.

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