CN215672345U - Highway tunnel drainage system - Google Patents

Abstract

The utility model discloses a drainage system for a highway tunnel, and relates to the technical field of tunnel construction. The utility model comprises a central drainage ditch, a tunnel supporting structure, a circumferential drainage blind pipe arranged in the supporting structure and a tunnel drainage ditch; the tunnel drainage ditch is communicated to the annular drainage blind pipe through a transverse drainage pipe and communicated to the central drainage ditch through a track bed drainage pipe; a sundry filtering structure is arranged on the upper layer of the tunnel drainage ditch; the sundries filtering structure comprises a plurality of grating plates arranged on the tunnel drainage ditch, and a plurality of floaters are arranged on the grating plates. The utility model has simple structure, avoids sundries from blocking the drainage channel by providing a new drainage system, and solves the problem of tunnel drainage.

Description

Highway tunnel drainage system

Technical Field

The utility model relates to the technical field of tunnel construction, in particular to a highway tunnel drainage system.

Background

With the rapid development of national economy and the rapid increase of traffic demand, a large number of shallow-buried bias small-clear-distance tunnels represented by three-lane highway tunnels appear. The shallow-buried bias small-clear-distance tunnel has flat shape and mutual influence of double-tunnel construction, the integral stability of surrounding rocks is poor, particularly in a shallow-buried bias section, the buried depth is shallow, the surrounding rocks are broken by wind, the bearing capacity is extremely low, bias exists, the distribution and deformation conditions of internal forces of the surrounding rocks and a supporting structure are complex, and lining cracking and leakage are easily caused, even a mountain unstable landslide is easily caused. However, in China, which is a country with many mountains, during the route selection process of the highway, the tunnel is easy to pass through the slope of the mountain, so that the safety construction of the shallow-buried bias small-clear-distance highway tunnel becomes a key technical problem in the tunnel engineering.

Therefore, the method has strict requirements on the excavation of the tunnel body, the water prevention of the tunnel and the zero settlement control. The excavation of the hole body is mainly overcome through an advanced construction method, the working procedure is optimized, a stress system is balanced, or a supporting structure is adopted for assistance, so that the settlement is avoided in the construction process. However, in the prior art, water is mainly drained through a water channel, particularly in areas with developed water networks in the south, the water drainage of the tunnel is more important, and once the water is blocked, a large amount of accumulated water is easily formed in severe weather.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a highway tunnel drainage system which is simple in structure, avoids sundries from blocking a drainage channel by providing a new drainage system, and solves the problem of tunnel drainage.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a highway tunnel drainage system comprises a central drainage ditch, a tunnel supporting structure, a circumferential drainage blind pipe and a tunnel drainage ditch, wherein the circumferential drainage blind pipe and the tunnel drainage ditch are arranged in the supporting structure; the tunnel drainage ditch is communicated to the annular drainage blind pipe through a transverse drainage pipe and communicated to the central drainage ditch through a track bed drainage pipe; a sundry filtering structure is arranged on the upper layer of the tunnel drainage ditch; the sundries filtering structure comprises a plurality of grating plates arranged on the tunnel drainage ditch, and a plurality of floaters are arranged on the grating plates.

Furthermore, the grating plate comprises a wooden frame, a base plate with four edges embedded with the wooden frame, and a filter screen arranged in the base plate; and a supporting beam column is arranged between two adjacent frames. Adopt wooden frame to inlay metal substrate, wooden frame can effectively alleviate grid board dead weight, and under unit volume, the buoyancy that wooden frame received is bigger.

Furthermore, a plurality of strip-shaped float grooves are arranged on two side edges of the wooden frame at intervals, and the strip-shaped float grooves are arranged in the middle of the supporting beam column. The strip-shaped float groove is used for installing the float and preventing the float from falling off.

Further, the floater is specifically sealed hollow plastic. The hollow plastic can be subjected to larger buoyancy under the same liquid level.

Furthermore, the two ends of the supporting beam column are connected with bar-shaped guide blocks, and guide grooves matched with the guide blocks in size are arranged in the tunnel drainage ditch at intervals. The guide block on the beam column and the guide groove of the tunnel drainage ditch are matched with each other, so that the guide function can be achieved, and after the liquid level changes, the influence of the driving of the floater is received, so that the guide function is achieved for the floating and the sedimentation of the whole grid plate.

Furthermore, the middle part of the strip-shaped guide block is provided with an anti-falling groove, and an anti-falling base is arranged below the anti-falling groove.

Furthermore, the top of the guide groove is provided with an anti-falling clamp. The anticreep fastener can be for things such as screw, bolt, and after the installation, imbed in the guide way, play the problem that prevents to drop after the grid floats.

Compared with the prior art, the utility model has the advantages that: the drainage system provided by the utility model forms a complete drainage channel by mutually connecting the annular drainage blind pipe, the tunnel drainage ditch and the central drainage ditch. And set up debris filtration on the tunnel escape canal, this debris filtration's filter screen can be given sheltering from outside the tunnel escape canal with a large amount of bulky debris, avoids debris such as stone to enter into the escape canal and block up drainage channel.

In addition, the grid plate of the sundries filtering structure is provided with a plurality of hollow rubber floaters, when rainy weather or other unexpected conditions occur, water is accumulated in the tunnel drainage ditch, the liquid level in the tunnel drainage ditch rises, and when the liquid level reaches or exceeds the original grid, the floaters can provide buoyancy to lift the grid plate, so that the filter screen rises, and the drainage quantity is increased.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a drainage system for a road tunnel according to the present invention;

FIG. 2 is a schematic view of a grid structure of a drainage system for a road tunnel according to the present invention;

FIG. 3 is a schematic view of a tunnel drain of a drainage system for a road tunnel according to the present invention;

FIG. 4 is a schematic view of a tunnel drain configuration in use of the road tunnel drainage system of the present invention;

reference numerals: 1-circumferential drainage blind pipe, 2-transverse drainage pipe, 3-tunnel drainage ditch, 4-central drainage ditch, 5-track bed drainage pipe, 6-supporting structure, 7-grating plate, 8-floater, 9-strip-shaped guide block, 10-guide groove, 11-anti-falling groove and 12-support beam column.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the products of the present invention are used, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or element which is referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," "third," and the like, if any, are only used to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

As shown in fig. 1-2, a road tunnel drainage system comprises a central drainage ditch 4, a tunnel supporting structure 6, a circumferential drainage blind pipe 1 arranged inside the supporting structure 6, and a tunnel drainage ditch 3; the tunnel drainage ditch 3 is communicated to the annular drainage blind pipe 1 through the transverse drainage pipe 2 and communicated to the central drainage ditch 4 through the track bed drainage pipe 5; a sundry filtering structure is arranged on the upper layer of the tunnel drainage ditch 3; the debris filtering structure includes a plurality of grating plates 7 installed on the tunnel drain 3, and a plurality of floats 8 are provided on the grating plates 7.

Compared with the prior art, the highway tunnel drainage system provided by the utility model adopts the central drainage ditch 4, the tunnel drainage ditch 3 and the annular drainage blind pipe 1 to form a three-layer drainage system, and the central drainage ditch 4, the tunnel drainage ditch 3 and the annular drainage blind pipe 1 are respectively communicated through the transverse drainage pipes 2; the tunnel drain 3 and the center drain 4 are communicated through a track bed drain pipe 5 to form a drain system. In addition, in order to overcome the defects of the prior art, a sundry filtering structure is arranged on the tunnel drainage ditch 3, and a plurality of floaters 8 are arranged on the sundry filtering structure. Under the condition that the displacement demand is low, the water level is low in the tunnel escape canal 3, and debris filtration settles in tunnel escape canal 3 because of the dead weight, plays the filtering action through fine and close filter screen. When the water level risees, the displacement demand increases, and the water level reaches or does not cross debris filtration gradually, and float 8 can provide buoyancy and pull up debris filtration, increases the displacement, avoids the filter screen to influence the drainage. The structure is more flexible and does not need manual operation.

As shown in fig. 1 to 4, the grating plate 7 includes a wooden frame, a base plate with four sides embedded with the wooden frame, and a filter screen disposed in the base plate; and a support beam column 12 is arranged between two adjacent frames. Adopt wooden frame to inlay metal substrate, wooden frame can effectively alleviate grid board 7 dead weight, and under unit volume, the buoyancy that wooden frame received is bigger. A plurality of strip-shaped float grooves are arranged on two side edges of the wooden frame at intervals, and the strip-shaped float grooves are arranged in the middle of the supporting beam column 12. The strip-shaped float groove is used for installing the float 8 and preventing the float 8 from falling off. The float 8 is embodied as a sealed hollow plastic. The hollow plastic can be subjected to larger buoyancy under the same liquid level.

The two ends of the supporting beam column 12 are connected with strip-shaped guide blocks 9, and guide grooves 10 matched with the guide blocks in size are arranged in the tunnel drainage ditch 3 at intervals. The guide block on the beam column and the guide groove 10 of the tunnel drainage ditch 3 are matched with each other, so that a guide effect can be achieved, and after the liquid level changes, the liquid level is influenced by the driving of the floater 8, so that the guide effect is achieved on the floating and sedimentation of the whole grid plate 7. The middle part of the strip-shaped guide block 9 is provided with an anti-falling groove 11, and an anti-falling base is arranged below the anti-falling groove 11. The top of the guide groove 10 is provided with an anti-falling clamp. The anticreep fastener can be for things such as screw, bolt, and after the installation, pass anticreep recess 11 and imbed in the guide way 10, can support the anticreep base and play the problem that prevents that the grid from floating the back and coming off.

In actual use, when the grid plate 7 is manufactured in a factory, the hollow floats 8 are embedded into strip-shaped float grooves reserved between the frame of the grid plate 7 and the support beam columns 12. After arriving at the scene, align the bar guide block 9 on the support beam column 12 of grid plate 7 to the guide way 10 of tunnel escape canal 3, install the anticreep fastener again, make the anticreep fastener pass the anticreep recess 11 of bar guide block 9 to imbed in the guide way 10 of tunnel escape canal 3. The anti-dropping clamp can be a screw, a bolt and other common mechanical parts, and of course, other limit structures with the same principle can also be adopted.

After the installation, under dry weather, 3 liquid levels in tunnel escape canal are low, and grid plate 7 subsides in tunnel escape canal 3 because of the dead weight factor. And the filter screen of installation can play the effect of filtering bulky debris on grating 7, avoids such as stone, discarded object etc. to enter into in the escape canal, avoids blockking up water drainage pipeline, plays certain guard action. When the water level reaches or exceeds the original grating, as shown in fig. 4, the floater 8 can provide buoyancy to lift the grating plate 7 and drive the filter screen to rise, so that the fine filter screen is prevented from influencing water drainage, and the water drainage amount is increased. And need not manual operation, after the liquid level reduces, float 8 loses buoyancy, under the influence of dead weight, can descend to initial position along the guide block. Overall structure is simple, realizes easily, and after the installation, need not manual operation, has played the effect of good promotion drainage to overcome prior art's not enough.

The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims (7)

1. A highway tunnel drainage system which characterized in that: the tunnel drainage system comprises a central drainage ditch (4), a tunnel supporting structure (6), a circumferential drainage blind pipe (1) arranged in the supporting structure (6) and a tunnel drainage ditch (3); the tunnel drainage ditch (3) is communicated with the annular drainage blind pipe (1) through a transverse drainage pipe (2) and is communicated with the central drainage ditch (4) through a track bed drainage pipe (5); a sundry filtering structure is arranged on the upper layer of the tunnel drainage ditch (3); the sundries filtering structure comprises a plurality of grating plates (7) arranged on the tunnel drainage ditch (3), and a plurality of floaters (8) are arranged on the grating plates (7).

2. The road tunnel drainage system of claim 1, wherein: the grating plate (7) comprises a wooden frame, a base plate with four edges embedded with the wooden frame and a filter screen arranged in the base plate; and a supporting beam column (12) is arranged between two adjacent frames.

3. The road tunnel drainage system of claim 2, wherein: a plurality of strip-shaped float grooves are arranged on two side edges of the wooden frame at intervals, and the strip-shaped float grooves are arranged in the middle of the supporting beam column (12).

4. The road tunnel drainage system of claim 1, wherein: the floater (8) is specifically sealed hollow plastic.

5. The road tunnel drainage system of claim 2, wherein: the two ends of the supporting beam column (12) are connected with bar-shaped guide blocks (9), and guide grooves (10) matched with the guide blocks in size are arranged in the tunnel drainage ditch (3) at intervals.

6. The road tunnel drainage system of claim 5, wherein: the middle part of the strip-shaped guide block (9) is provided with an anti-falling groove (11), and an anti-falling base is arranged below the anti-falling groove (11).

7. The road tunnel drainage system of claim 5, wherein: the top of the guide groove (10) is provided with an anti-falling clamp.

Images