Tunnel waterproof drainage structure

Abstract

The utility model relates to the technical field of tunnel water prevention and drainage, in particular to a tunnel water prevention and drainage structure which comprises a drainage frame located above a drainage cavity. The first filter screen plate, the second filter screen plate and the third filter screen plate are erected on the drainage cavity and are sequentially arranged from top to bottom; the left and right ends of the first filter screen plate are erected at the upper end of the drainage cavity; the second filter screen plate internally comprises a precipitation cavity and a filter cavity; a drainage plate is arranged on the side of the second filter screen plate and used for filtering water flowing down from the annular blind pipe of the drainage layer. The first filter screen plate and the second filter screen plate are mutually clamped, and the second filter screen plate and the third filter screen plate are mutually clamped. And the first filter screen plate, the second filter screen plate and the third filter screen plate which are mutually clamped are utilized, so that each filter screen plate is convenient to clean. A drainage plate is arranged on the side face of the second filter screen plate, water flowing down from an annular blind pipe of a tunnel drainage layer can be guided into a precipitation cavity of the second filter screen plate, and the water finally flows into a drainage cavity to be discharged after being precipitated and filtered.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel waterproofing and drainage, and more specifically, to a tunnel waterproofing and drainage structure. Background Art

[0002] Tunnel waterproofing and drainage refers to the waterproofing and drainage measures taken to ensure that tunnel structures are not damaged by water seepage and leakage, endangering traffic safety, corroding in-tunnel equipment, and reducing the service life of the structure. The patent with the publication number CN217015721 U discloses a tunnel waterproofing and drainage structure. A filter mesh plate is arranged on the installation frame to block and filter solid waste such as leaves carried in rainwater. A flow limiting plate is arranged on the sedimentation tank to play a role in limiting the flow rate, so that sediment settles in the sedimentation cavity, and relatively clean water is discharged through the through holes.

[0003] However, the above tunnel waterproofing and drainage structure has the following problems: the water flowing down from the annular blind pipe of the drainage layer directly enters the drainage cavity without filtration after passing through the connection groove; the outlet of the sedimentation tank is small and narrow, and the accumulated sediment is not easy to clean. Summary of the Utility Model

[0004] The utility model aims to provide a tunnel waterproofing and drainage structure to overcome the above deficiencies.

[0005] A tunnel waterproofing and drainage structure includes a drainage rack located above the drainage cavity;

[0006] It further includes a first filter mesh plate, a second filter mesh plate, and a third filter mesh plate that are arranged in sequence from top to bottom in the drainage cavity;

[0007] The left and right ends of the first filter mesh plate are arranged on the upper end of the drainage cavity;

[0008] The second filter mesh plate includes a sedimentation cavity and a filtration cavity; a drainage plate is further arranged on the side of the second filter mesh plate for filtering the water flowing down from the annular blind pipe of the drainage layer;

[0009] The first filter mesh plate and the second filter mesh plate are mutually clamped, and the second filter mesh plate and the third filter mesh plate are mutually clamped.

[0010] Further, the first filter mesh plate is a trough-shaped body with a wider upper part and a narrower lower part, including a first inclined surface, a second inclined surface, and a bottom surface; the outer ends of the first inclined surface and the second inclined surface are respectively integrally connected with a laying edge for laying on the drainage cavity.

[0011] Further, the first inclined surface and the second inclined surface are symmetrically arranged and are respectively provided with a plurality of first through holes; the bottom surface is provided with a plurality of second through holes, and the aperture of the first through holes is smaller than the aperture of the second through holes.

[0012] Further, on both sides of the bottom of the first filter plate, first clamping strips are symmetrically arranged for clamping the second filter plate.

[0013] Further, the second filter plate includes a sedimentation chamber arranged obliquely and a filtration chamber located below the sedimentation chamber; a partition plate arranged obliquely is disposed in the second filter plate, and the partition plate divides the second filter plate into a sedimentation chamber and a filtration chamber.

[0014] Further, a third through hole is arranged above the middle of the partition plate for the water sedimented in the sedimentation chamber to flow out.

[0015] Further, fourth through holes are arranged on the bottom surface and the side surface of the filtration chamber.

[0016] Further, on both sides of the top of the second filter plate, second clamping grooves are symmetrically arranged and are adapted to the first clamping strips.

[0017] Two second clamping strips are arranged at the bottom of the second filter plate for clamping the third filter plate.

[0018] Further, a drainage plate is arranged on one side of the second filter plate facing the annular blind pipe, and the drainage plate is arranged obliquely; a fifth through hole is opened on the side wall connecting the drainage plate.

[0019] Further, on both sides of the top of the third filter plate, third clamping grooves are symmetrically arranged and are adapted to the second clamping strips.

[0020] Further, the first clamping strips and the second clamping strips are respectively strip-shaped plate structures, and the second clamping grooves and the third clamping grooves are respectively U-shaped grooves.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] In this tunnel waterproof and drainage structure, by using the first filter plate, the second filter plate, and the third filter plate that are mutually clamped, the effect of being easy to disassemble is realized; it is convenient to clean each filter plate. The water flowing into the tunnel through the drainage rack first passes through the first filter plate, and after preliminary filtration, it enters the sedimentation chamber of the second filter plate. After sedimentation, it flows into the filtration chamber of the second filter plate through the third through hole on the partition plate for re-filtration, and then flows into the third filter plate for another filtration. Therefore, the water in the tunnel is filtered layer by layer and finally flows into the drainage chamber and is discharged.

[0023] In this tunnel waterproof and drainage structure, a drainage plate is arranged on the side of the second filter plate, which can introduce the water flowing down from the annular blind pipe of the tunnel drainage layer into the sedimentation chamber of the second filter plate, and after sedimentation and filtration, it finally flows into the drainage chamber and is discharged.

[0024] Furthermore, the interlocking design of the first filter plate, the second filter plate, and the third filter plate not only facilitates disassembly but also makes it easy to clean each part of the structure. If there are too many impurities in the water, two or more second filter plates can be arranged to achieve the effect of multi-stage filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings are used to provide a further understanding of the present invention and form a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0026] Figure 1 is a schematic diagram of the overall structure of the tunnel waterproof and drainage structure in the embodiment.

[0027] Figure 2 is a schematic diagram of the drainage unit in the embodiment.

[0028] Figure 3 is a schematic diagram of the assembly of the drainage rack, the first filter plate, the second filter plate, and the third filter plate in the embodiment.

[0029] Figure 4 is a schematic diagram of the first filter plate in the embodiment.

[0030] Figure 5 is a schematic diagram of the second filter plate in the embodiment.

[0031] Figure 6 is a schematic diagram of the third filter plate in the embodiment.

[0032] Figure 7 is a schematic diagram of the first filter plate connected to the drainage cavity in another connection manner in the embodiment.

[0033] In the figures: 1, drainage cavity; 11, limit post;

[0034] 2, drainage rack;

[0035] 3, first filter plate; 31, first inclined surface; 32, second inclined surface; 33, bottom surface; 34, erection edge; 35, first through hole; 36, second through hole; 37, first clamping strip; 38, perforation;

[0036] 4, second filter plate; 41, sedimentation cavity; 42, filtration cavity; 43, drainage plate; 44, partition; 45, third through hole; 46, fourth through hole; 47, fifth through hole; 48, second clamping groove; 49, second clamping strip; 410, baffle;

[0037] 5, third filter plate; 51, third clamping groove; 52, sixth through hole;

[0038] 6, annular blind pipe. Detailed implementation mode

[0039] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0040] As Figures 1-6 shown, this embodiment provides a tunnel waterproof and drainage structure, which includes a drainage rack 2 located above the drainage cavity 1 and a first filter screen plate 3, a second filter screen plate 4, and a third filter screen plate 5 arranged in sequence from top to bottom and installed on the drainage cavity 1. Among them, the first filter screen plate 3 and the second filter screen plate 4 are mutually clamped, and the second filter screen plate 4 and the third filter screen plate 5 are mutually clamped, which is not only convenient for disassembly, but also convenient for cleaning each part. In addition, multiple second filter screen plates 4 can be arranged according to the actual working conditions to achieve multi-stage filtration of the water in the tunnel. The drainage rack 2 adopts a frame provided with a number of long strip-shaped through holes, which is convenient for drainage. The mutual clamping design of the first filter screen plate 3, the second filter screen plate 4, and the third filter screen plate 5 is not only convenient for disassembly, but also convenient for cleaning each part of the structure. If there are too many sundries in the water, two or more second filter screen plates 4 can be arranged to achieve the effect of multi-stage filtration in the tunnel.

[0041] In this embodiment, a first filter screen plate 3, a second filter screen plate 4, and a third filter screen plate 5 are sequentially clamped below each drainage rack 2, and such a structure is a drainage unit. A number of such drainage units can be continuously arranged in the drainage cavity 1, and such a design is convenient for cleaning each drainage unit separately.

[0042] Specifically, as Figures 2-4 shown, the left and right ends of the first filter screen plate 3 are installed on the upper end of the drainage cavity 1 for filtering the water flowing from the tunnel into the drainage cavity 1 through the drainage rack 2. The first filter screen plate 3 is a trough with a wider upper part and a narrower lower part, including a first inclined surface 31, a second inclined surface 32, and a bottom surface 33; the outer ends of the first inclined surface 31 and the second inclined surface 32 are respectively integrally connected with a laying edge 34 for laying on the top end of the side wall of the drainage cavity 1.

[0043] Furthermore, the first inclined surface 31 and the second inclined surface 32 are symmetrically arranged, and a number of first through holes 35 are respectively arranged; the bottom surface 33 is provided with a number of second through holes 36, and the aperture of the first through holes 35 is smaller than the aperture of the second through holes 36. Therefore, most of the sundries such as sediment enter the second filter screen plate 4 through the bottom surface. First clamping strips 37 are symmetrically arranged on both sides of the bottom of the first filter screen plate 4 for clamping the second filter screen plate.

[0044] Specifically, as shown in Figure 2 , Figure 3 , Figure 5 , the second filter screen plate 4 includes a sedimentation chamber 41 and a filtration chamber 42; a drainage plate 43 is also arranged on the side of the second filter screen plate 4 for filtering the water flowing down from the annular blind pipe 6 of the drainage layer.

[0045] Furthermore, a partition plate 44 is inclinedly arranged in the second filter screen plate 4, and the partition plate 44 divides the second filter screen plate 4 to form a sedimentation chamber 41 and a filtration chamber 42. In terms of space, the sedimentation chamber 41 is located above the filtration chamber 42. A third through hole 45 is arranged in the upper middle part of the partition plate 44, and the water sedimented in the sedimentation chamber 42 flows into the filtration chamber 42 through the third through hole. Fourth through holes 46 are arranged on the bottom surface and the side surface of the filtration chamber 42 respectively.

[0046] A drainage plate 43 is arranged on one side of the second filter screen plate 4 facing the annular blind pipe 6, and the drainage plate 43 is inclinedly arranged; a fifth through hole 47 is opened on the side wall of the second filter screen plate 4 connected to the drainage plate 43, and the height of the fifth through hole 47 is higher than that of the fourth through hole 46, which can ensure that the water flowing down from the annular blind pipe 6 of the tunnel drainage layer is drained through the drainage plate 43 and flows into the sedimentation chamber 41 through the fifth through hole 47. After sedimentation, it smoothly flows into the filtration chamber through the fourth through hole 46. Two baffles 410 perpendicular to the drainage plate are also arranged on both sides of the drainage plate. The aperture of the fifth through hole 47 is smaller than that of the fourth through hole 46. Under the filtration of the side plate of the second filter screen plate beside the drainage plate 43, partial processes can also be carried out. Similarly, because the drainage plate has an upward opening and a large opening, the sundries accumulated on the drainage plate are also easy to clean. A drainage plate 43 is arranged on the side of the second filter screen plate 4, which can introduce the water flowing down from the annular blind pipe 6 of the tunnel drainage layer into the sedimentation chamber 41 of the second filter screen plate 4, and finally flows into the drainage chamber 1 through sedimentation and filtration for discharge.

[0047] In this embodiment, second card slots 48 are symmetrically arranged on both sides of the top of the second filter screen plate 4 and are adapted to the first card strips 37. Second card strips 49 are arranged at the bottom of the second filter screen plate 4 for clamping the third filter screen plate 5. Third card slots 51 are symmetrically arranged on both sides of the top of the third filter screen plate 5 and are adapted to the second card strips 49. The third filter screen plate 5 has an upward opening, and sixth through holes 52 are arranged on its four side walls and the bottom surface respectively.

[0048] Among them, the first card strips 37 and the second card strips 49 are respectively long strip-shaped plate structures, and the second card slots 48 and the third card slots 51 are respectively U-shaped grooves.

[0049] In order to further stabilize the connection of the first filter screen plate 3, in practical applications, as shown in Figure 7As shown, cylindrical limit posts 11 can be fixedly arranged at the tops of two opposite side walls of the drainage cavity 1, and they can be made by integral casting. Correspondingly, corresponding through holes 38 are arranged at the laying edge 34 of the first filter screen plate 3. When installing the first filter screen plate 3, the through holes 38 are passed through the limit posts to realize the firm laying of the first filter screen plate 3 and ensure the stability of the overall waterproof and drainage structure. Correspondingly, holes corresponding to the limit posts 11 are also arranged on the corresponding drainage rack 2 to facilitate the installation of the drainage rack 2.

[0050] For the tunnel waterproof and drainage structure provided in this embodiment, by using the first filter screen plate 3, the second filter screen plate 4, and the third filter screen plate 5 that are mutually clamped, they can be disassembled from each other, which is convenient for cleaning each filter screen plate. The water flowing into the tunnel through the drainage rack 2 first passes through the first filter screen plate 3. After preliminary filtration, it enters the sedimentation cavity 41 of the second filter screen plate 4. After sedimentation, it flows through the third through hole 45 on the partition plate 44 into the filtration cavity 42 of the second filter screen plate 4 for re-filtration, and then flows into the third filter screen plate 5 for another filtration. Therefore, the water in the tunnel is filtered layer by layer and finally flows into the drainage cavity and is discharged.

[0051] For the tunnel waterproof and drainage structure provided in this embodiment, the design of its diversion plate 43 can introduce the water flowing down from the annular blind pipe 6 of the tunnel drainage layer into the sedimentation cavity 41, and finally flows into the drainage cavity 1 after sedimentation and filtration. And because the opening of the sedimentation cavity 41 is large and faces upward, the second filter screen plate can be separated from the first filter screen plate, which is convenient for cleaning the accumulated sediment. In addition, because the diversion plate 43 is an open design, the sediment accumulated on the diversion plate is also easy to clean.

[0052] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A tunnel waterproof drainage structure, comprising a drainage frame (2) located above a drainage cavity (1); characterized in that: It also comprises a first filter screen plate (3), a second filter screen plate (4) and a third filter screen plate (5) which are mounted on the drainage chamber (1) and arranged in sequence from top to bottom; The left and right ends of the first filter screen plate (3) are mounted on the upper end of the drainage chamber (1); The second filter screen plate (4) contains a sedimentation chamber (41) and a filter chamber (42); a drainage plate (43) is also arranged on the side of the second filter screen plate (4) for filtering water flowing down from the annular blind pipe (6) of the drainage layer; The first filter screen plate (3) and the second filter screen plate (4) are mutually clamped, and the second filter screen plate (4) and the third filter screen plate (5) are mutually clamped.

2. The tunnel waterproof drainage structure according to claim 1, characterized in that: The first filter screen plate (3) is a trough body which is wide at the top and narrow at the bottom, and comprises a first inclined surface (31), a second inclined surface (32) and a bottom surface (33); the outer ends of the first inclined surface (31) and the second inclined surface (32) are respectively integrally connected with a mounting edge (34) for mounting on the drainage cavity (1).

3. The tunnel waterproof drainage structure according to claim 2, characterized in that: The first inclined surface (31) and the second inclined surface (32) are symmetrically arranged and are respectively provided with a plurality of first through holes (35); the bottom surface (33) is provided with a plurality of second through holes (36), and the aperture of the first through hole (35) is smaller than the aperture of the second through hole (36).

4. The tunnel waterproof drainage structure according to claim 3, characterized in that: First clamping strips (37) are symmetrically arranged on both sides of the bottom of the first filter screen plate (3) for clamping the second filter screen plate (4).

5. The tunnel waterproof drainage structure according to claim 4, characterized in that: The second filter screen plate (4) comprises an inclined sedimentation chamber (41) and a filter chamber (42) located below the sedimentation chamber (41); an inclined partition plate (44) is arranged inside the second filter screen plate (4), and the partition plate (44) separates the second filter screen plate (4) into the sedimentation chamber (41) and the filter chamber (42).

6. The tunnel waterproof drainage structure according to claim 5, characterized in that: A third through hole (45) is arranged in the upper middle portion of the partition plate (44); and fourth through holes (46) are arranged on the bottom surface and side surfaces of the filter cavity (42).

7. The tunnel waterproof drainage structure according to claim 6, characterized in that: Second clamping grooves (48) are symmetrically arranged on both sides of the top of the second filter screen plate (4) and are adapted to fit the first clamping strip (37); Two second clamping strips (49) are arranged at the bottom of the second filter screen plate (4) for clamping the third filter screen plate (5).

8. The tunnel waterproof drainage structure according to claim 7, characterized in that: A flow guide plate (43) is arranged on one side of the second filter screen plate (4) facing the annular blind pipe (6), and the flow guide plate (43) is arranged obliquely; a fifth through hole (47) is opened on the side wall connected to the flow guide plate (43); the height of the fifth through hole (47) is higher than the height of the fourth through hole (46).

9. The tunnel waterproof drainage structure according to claim 8, characterized in that: The third clamping grooves (51) are symmetrically arranged on both sides of the top of the third filter screen plate (5) and are adapted to fit the second clamping strip (49).

10. The tunnel waterproof drainage structure according to claim 9, characterized in that: The first clamping strip (37) and the second clamping strip (49) are respectively long plate-shaped structures, and the second clamping slot (48) and the third clamping slot (51) are respectively U-shaped slots.

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