A tunnel integrated drainage ditch structure

Abstract

The utility model relates to an integrated drainage ditch structure for a tunnel. The utility model includes a plurality of drainage ditch units, each of which includes a male head and a female head respectively arranged at both ends along its length direction, and each of which includes a cavity for accumulated water to flow into; wherein, in two adjacent drainage ditch units, the male head of one can be plugged into the female head of the other, so that the plurality of drainage ditch units can be sequentially spliced ​​into an integrated structure along the length direction. The utility model provides an integrated drainage ditch structure for a tunnel, wherein the drainage ditch unit has a simple design and can be pre-processed and formed in a factory, is convenient for construction and maintenance, is applicable to existing tunnels and newly built tunnels, and can effectively shorten the construction period and reduce costs.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to an integrated drainage ditch structure for a tunnel. Background Art

[0002] Urban underpasses are an important part of urban three-dimensional transportation and rapid transportation. Their safe and reliable operation has a real impact on the travel of the entire city's residents. The most common engineering problem of underground structures - water accumulation - is a key issue that tunnel designers, builders, and maintainers must take measures to solve.

[0003] At present, the main drainage method in tunnels is to discharge water into cross-sectional ditches through the longitudinal slope and to set up lateral drainage outlets on the outer side of the carriageway. However, cross-sectional ditches and lateral drainage outlets are generally only set near the tunnel entrance and at the lowest point of the longitudinal slope. When the amount of water in the tunnel is large (such as during heavy rain, tunnel maintenance and flushing, etc.), the surface water on the road is difficult to drain quickly, affecting driving safety; in the long run, it will also affect the durability and safety of the main structure of the tunnel. Summary of the invention

[0004] To this end, the utility model provides a tunnel integrated drainage ditch structure, which has a simple structure and high strength, is easy to construct and maintain, is applicable to existing tunnels and newly built tunnels, and can effectively shorten the construction period and reduce costs.

[0005] In order to solve the above technical problems, the utility model provides a tunnel integrated drainage ditch structure, comprising:

[0006] A plurality of drainage gutter units, each of which comprises a male head and a female head respectively arranged at both ends along the length direction thereof, and each of which comprises a cavity for the accumulated water to flow into;

[0007] Among them, the male head of one of the two adjacent drainage ditch units can be plugged into the female head of the other one, so that the multiple drainage ditch units are sequentially spliced ​​into an integrated structure along the length direction.

[0008] In one embodiment of the utility model, the female head includes a support plate extending axially at one end of the cavity, and the male head includes a plug-in plate extending axially at the other end of the cavity. In two adjacent drainage ditch units, the support plate of one is supported by the cavity of the other, and the plug-in plate of one extends into the cavity of the other.

[0009] In one embodiment of the present invention, the cross-section of the cavity is a quadrilateral structure, the plug board extends to the upper part of one end of the cavity, and the support plate extends to the lower part and the side of the other end of the cavity.

[0010] In an embodiment of the present invention, the inner wall of the cavity is smooth, and the two ends of the bottom wall of the cavity are transitioned to the side walls through rounded corners.

[0011] In one embodiment of the present utility model, in two adjacent drainage ditch units, a connecting piece is installed between the support plate of one and the cavity of the other.

[0012] In one implementation of the utility model, the connecting member includes a reserved bolt hole opened in the support plate and an expansion bolt installed in the reserved bolt hole.

[0013] In one embodiment of the utility model, the drainage ditch unit includes a main body and a cover plate covering the upper end of the main body, the cavity is constructed between the cover plate and the main body, and water inlet holes are distributed on the surface of the cover plate.

[0014] In one embodiment of the present invention, the cover plate is an integrally formed structure; or, the cover plate includes at least one opening plate hingedly connected to the upper end of the body.

[0015] In one embodiment of the present utility model, the drainage ditch unit is made of QT500-7 ductile iron.

[0016] In one implementation of the utility model, the integrated structure is installed between the lowest position of the tunnel transverse slope and the crash barrier.

[0017] The above technical solution of the utility model has the following advantages compared with the prior art:

[0018] The utility model discloses a tunnel integrated drainage ditch structure, and the drainage ditch unit is simple in design and can be pre-processed and formed in the factory, which not only ensures quality control in the manufacturing process, but also greatly shortens the on-site construction time and complexity. The use of prefabricated components improves installation efficiency and reduces interference caused by on-site construction. Some drainage ditch units are designed with opening plates, which makes maintenance and cleaning work more convenient. The cover plate can be easily removed regularly or when needed to clear the internal dirt and ensure unobstructed drainage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0020] Figure 1 It is a structural schematic diagram of the drainage ditch structure of the utility model.

[0021] Figure 2 The utility model is a structural schematic diagram of a drainage ditch structure with an opening plate.

[0022] Figure 3 It is a structural schematic diagram of the male plug of the utility model.

[0023] Figure 4 It is a structural schematic diagram of the female head structure of the utility model.

[0024] Figure 5 It is a schematic diagram of the splicing of drainage ditch units of the utility model.

[0025] Figure 6 It is a schematic diagram of the utility model drainage ditch structure installed in a tunnel.

[0026] Description of the Figures in the Specification:

[0027] 1. Integrated structure;

[0028] 2. Cement mortar;

[0029] 3. Male connector; 31. Plug-in board;

[0030] 4. Female connector; 41. Support plate;

[0031] 5. Reserve bolt holes;

[0032] 6. Expansion bolts;

[0033] 7. Drainage ditch unit; 71. Main body; 72. Cover plate; 73. Opening plate; 74. Cavity;

[0034] 8. Cover plate. DETAILED DESCRIPTION

[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0036] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0037] In the present utility model, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present utility model, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0039] Reference Figure 1 As shown, a tunnel integrated drainage ditch structure of the utility model comprises:

[0040] A plurality of drainage gutter units 7, each of which comprises a male head 3 and a female head 4 respectively arranged at both ends along the length direction thereof, and each of which comprises a cavity 74 for the accumulated water to flow into;

[0041] Among them, the male head 3 of one of the two adjacent drainage gutter units 7 can be plugged into the female head 4 of the other one, so that the multiple drainage gutter units 7 are sequentially spliced ​​into an integrated structure 1 along the length direction.

[0042] In one embodiment, referring to Figure 3 , Figure 4 As shown, the female head 4 includes a support plate 41 axially extending at one end of the cavity 74, and the male head 3 includes a plug-in plate 31 axially extending at the other end of the cavity 74. Among the two adjacent drainage ditch units 7, the support plate 41 of one is supported on the cavity 74 of the other, and the plug-in plate 31 of one extends into the cavity 74 of the other, so that the front and rear drainage ditch units 7 are closely attached to each other.

[0043] In one embodiment, the cross-section of the cavity 74 is a quadrilateral structure, the plug board 31 extends to the upper part of one end of the cavity 74, and the support plate 41 extends to the lower part and the side part of the other end of the cavity 74; the inner wall of the cavity 74 is smooth, and the two ends of the bottom wall of the cavity 74 are transitioned to the side walls through rounded corners.

[0044] Through the above arrangement, the accumulated water in the tunnel is discharged into the integrated drainage ditch along the cross slope of the roadway, and the ditch is connected to the cross ditch to form a complete drainage system. The smooth inner wall of the cavity 74 helps the water flow smoothly, thereby reducing the accumulation of water on the road and improving the driving safety of the tunnel. The rapid drainage function is particularly important in extreme weather conditions such as heavy rain.

[0045] Specifically, refer to Figure 5 As shown, in two adjacent drainage gutter units 7, a connecting piece is installed between the support plate 41 of one and the cavity 74 of the other. In one embodiment, the connecting piece includes a reserved bolt hole 5 opened in the support plate 41 and an expansion bolt 6 installed in the reserved bolt hole 5, and an M10 expansion bolt 6 can be used, and the top of the M10 expansion bolt 6 after being driven in is not higher than the reserved bolt hole 5.

[0046] The drainage ditch unit 7 can be pre-processed and formed in the factory, and can be directly installed after being transported to the site, with fewer accessories and convenient installation.

[0047] In one embodiment, the drainage ditch unit 7 is made of QT500-7 ductile iron material; the drainage ditch unit 7 is made of QT500-7 ductile iron material, which is not only light and strong, but also has good durability and corrosion resistance, can withstand the environmental conditions in the tunnel, and prolongs the service life. The drainage ditch unit 7 includes a body 71 and a cover plate 8 covering the upper end of the body 71, the cavity 74 is formed between the cover plate 8 and the body 71, and water inlet holes are distributed on the surface of the cover plate 8.

[0048] In one embodiment, referring to Figure 1 , Figure 2 As shown, the cover plate 8 is an integrally formed structure or includes at least one opening plate 73 hingedly connected to the upper end of the main body 71, and the two can be used in combination. A drainage ditch unit 7 with an opening plate 73 is arranged every 20 m, and the width of the drainage ditch unit 7 is 15 cm. The opening plate 73 can be opened and closed freely, which is convenient for maintenance and garbage cleaning.

[0049] The overall design and material selection help reduce maintenance costs and extend the life of the structure. In addition, the simple plug-in and fixation method during installation reduces the need for professional skills and further reduces labor costs. It is particularly suitable for new or existing urban tunnel projects.

[0050] Reference Figure 6As shown, during installation, the asphalt pavement within 15cm of the lowest position of the tunnel cross slope (near the outer anti-collision wall) is chiseled off, and then M20 cement mortar 2 is used for leveling. After the cement mortar 2 is cured and formed, the first drainage ditch unit 7 is placed, and the M10 expansion bolt 6 is driven into the reserved bolt hole 5 of its female head 4 to fix it. The top of the driven M10 expansion bolt 6 is not higher than the reserved bolt hole 5; then the second drainage ditch unit 7 is placed and its male head 3 is inserted into the female head 4 of the previous drainage ditch unit 7, and then the M10 expansion bolt 6 is driven into the reserved bolt hole 5 of its female head 4 to fix it. Repeat the above steps until the drainage ditch in the tunnel is laid.

[0051] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A tunnel integrated drainage ditch structure, characterized in that: include: A plurality of drainage gutter units (7), each of the drainage gutter units (7) comprising a male head (3) and a female head (4) respectively arranged at two ends along the length direction thereof, and each of the drainage gutter units (7) comprising a cavity (74) for accumulated water to flow into; Among them, the male head (3) of one of the two adjacent drainage gutter units (7) can be plugged into the female head (4) of the other, so that a plurality of the drainage gutter units (7) are sequentially spliced ​​along the length direction into an integrated structure (1).

2. The tunnel integrated drainage ditch structure according to claim 1, characterized in that: The female head (4) comprises a support plate (41) extending axially at one end of the cavity (74), and the male head (3) comprises a plug-in plate (31) extending axially at the other end of the cavity (74). In two adjacent drainage gutter units (7), the support plate (41) of one is supported by the cavity (74) of the other, and the plug-in plate (31) of one extends into the cavity (74) of the other.

3. The tunnel integrated drainage ditch structure according to claim 2, characterized in that: The cavity (74) has a quadrilateral structure in cross section, the plug board (31) extends from the upper portion of one end of the cavity (74), and the support board (41) extends from the lower portion and the side portion of the other end of the cavity (74).

4. The tunnel integrated drainage ditch structure according to claim 3, characterized in that: The inner wall of the cavity (74) is smooth, and the two ends of the bottom wall of the cavity (74) are transitioned to the side walls through rounded corners.

5. The tunnel integrated drainage ditch structure according to claim 2, characterized in that: In two adjacent drainage ditch units (7), a connecting piece is installed between the support plate (41) of one and the cavity (74) of the other.

6. The tunnel integrated drainage ditch structure according to claim 5, characterized in that: The connecting member comprises a reserved bolt hole (5) opened in the support plate (41) and an expansion bolt (6) installed in the reserved bolt hole (5).

7. The tunnel integrated drainage ditch structure according to claim 1, characterized in that: The drainage ditch unit (7) comprises a main body (71) and a cover plate (8) covering the upper end of the main body (71), the cavity (74) is constructed between the cover plate (8) and the main body (71), and water inlet holes are distributed on the surface of the cover plate (8).

8. The tunnel integrated drainage ditch structure according to claim 7, characterized in that: The cover plate (8) is an integrally formed structure; or, the cover plate (8) comprises at least one opening plate (73) hingedly connected to the upper end of the body (71).

9. The tunnel integrated drainage ditch structure according to claim 1, characterized in that: The drainage ditch unit (7) is made of QT500-7 ductile iron.

10. The tunnel integrated drainage ditch structure according to claim 1, characterized in that: The integrated structure (1) is installed between the lowest position of the tunnel transverse slope and the crash wall.

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