CN219281790U

CN219281790U - Drainage structure

Info

Publication number: CN219281790U
Application number: CN202223481548.1U
Authority: CN
Inventors: 罗驰; 马伟斌; 郭小雄; 马荣田; 安哲立; 常凯; 郑泽福; 徐湉源; 彭旸; 王子洪; 赵鹏; 王志伟; 马召辉; 柴金飞
Original assignee: China Academy of Railway Sciences Corp Ltd CARS; Railway Engineering Research Institute of CARS
Current assignee: China Academy of Railway Sciences Corp Ltd CARS; Railway Engineering Research Institute of CARS
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-06-30
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses a drainage structure, which comprises a filtering layer, a drainage layer and a buffer layer which are sequentially connected, wherein the drainage layer is of a three-dimensional net structure; the drainage structure can be used in the tunnel, greatly enhances the drainage capacity of the tunnel and has a simple structure.

Description

Drainage structure

Technical Field

The utility model relates to the technical field of tunnels, in particular to a drainage structure.

Background

The tunnel water-proof and drainage measures adopted for guaranteeing that tunnel buildings are not damaged due to water leakage, driving safety is endangered, equipment in a hole is corroded, and the service life of the structure is shortened. Is a comprehensive work related to the factors such as topography, climate, engineering stratum, hydrogeology, structural scheme, construction method, material property and the like.

At present, the domestic waterproof and drainage structures for tunnels are usually waterproof and drainage by adopting geotechnical cloth and waterproof plates, and the seepage of the primary support of the tunnels is mainly absorbed and drained by the geotechnical cloth, so that the drainage capacity and the limited seepage are realized, and the seepage is easy to accumulate, so that the waterproof and drainage structures with strong drainage capacity and capable of being used for the tunnels are required to be designed and developed.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a drainage structure which can be used in a tunnel, greatly enhances the drainage capacity of the tunnel and has a simple structure.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a drainage structures, includes filter layer, drainage layer and buffer layer that connects gradually, the drainage layer is three-dimensional network structure to adopt polymer material or metal material to make.

Further the drainage layer is a cross elastic web.

Further the drainage layer is a spinning pad net or a three-dimensional structure net.

Further, the shape of the spinning pad net is wave-shaped or boss-shaped.

The filter layer is made of non-woven fabrics.

The buffer layer is made of non-woven fabrics or self-adhesive fabrics.

Further, the drainage layer is in adhesive connection with the filter layer and the buffer layer.

Further, the drainage layer is connected with the filter layer and the buffer layer by adopting hot melting.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, through the three-layer waterproof and drainage structure of the filter layer, the drainage layer and the buffer layer, the drainage layer is arranged into a three-dimensional net structure, so that the drainage layer has a larger water flow space (cavity), and further, the water seepage of the primary support can flow downwards rapidly after flowing into the drainage layer and finally flow into the drainage blind pipe in the tunnel to be discharged, and the drainage capacity of the water seepage of the primary support after flowing into the waterproof and drainage structure is greatly improved; the filter layer can filter out impurities such as sediment and stones in the water seepage of the primary support when the water seepage of the primary support flows into the water-proof and drainage structure, and only the water enters the drainage layer to prevent the impurities from entering to cause blockage of the drainage layer; the buffer layer can prevent concave-convex parts of the primary support from wearing the drainage layer and the waterproof layer, and buffer protection is carried out.

Drawings

For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

fig. 1 is a schematic structural diagram of a tunnel structure.

Marked in the figure as: 1. primary support; 2. secondary lining; 301. a filter layer; 302. a drainage layer; 303. a buffer layer; 304. and a waterproof layer.

Detailed Description

In the description of the present utility model, it should be noted that, for the azimuth words such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, only for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such feature, and in the description of the present utility model, the meaning of "a number", "a number" is two or more, unless otherwise specifically defined.

The utility model provides a tunnel structure, as shown in FIG. 1, includes primary support 1 and secondary lining 2 in proper order, be provided with waterproof and drainage structure between primary support 1 and the secondary lining 2, waterproof and drainage structure includes drainage structure and waterproof structure in proper order, drainage structure includes filter layer 301, drainage layer 302 and buffer layer 303 in proper order, waterproof structure includes waterproof layer 304, filter layer 301 is located towards primary support 1 one side, waterproof layer 304 is located towards secondary lining 2 one side.

Through being provided with the waterproof and drainage structure between primary support 1 and secondary lining 2, through setting up drainage layer 302, thereby the infiltration of increase primary support that can be great flows into the drainage ability after the waterproof and drainage structure in, make the infiltration of primary support flow into the drainage system in tunnel (drainage blind pipe 4) by the discharge, through setting up filter layer 301, make the infiltration of primary support when flowing into the waterproof and drainage structure in, can filter out impurity such as silt, stone in the infiltration of primary support, only let water enter into drainage layer 302, prevent impurity from getting into and arousing the jam of drainage layer 302, through setting up buffer layer 303, with prevent that the unsmooth department of country rock from wearing and tearing drainage layer 302 and waterproof layer 304, buffer protection carries out.

In this embodiment, preferably, the end portion of the waterproof and drainage structure located in the arch leg area of the tunnel is bent upwards to form a U-shaped receiving portion, a drainage blind pipe 4 arranged longitudinally is arranged at the U-shaped receiving portion, and a plurality of openings are formed in the periphery of the drainage blind pipe 4;

by arranging the U-shaped accommodating part and arranging the drainage blind pipe 4 in the U-shaped accommodating part, the water seepage of the primary support flowing in the waterproof and drainage structure arranged along the inner wall of the tunnel can finally flow into the U-shaped accommodating parts at the arch feet of the tunnels at the two sides, and finally flow into the drainage blind pipe 4 to be drained.

In this embodiment, preferably, the drainage layer 302 is a three-dimensional mesh structure, the three-dimensional mesh structure is formed by a plurality of filiform materials intersecting left and right, intersecting up and down, and finally interweaving with a hollow center, and the three-dimensional mesh structure can be made of metal materials or polymer materials, so that the drainage layer 302 has a larger water flow space (cavity), and further the water seepage of the primary support can flow down quickly after flowing into the drainage layer 302, and finally flows into the drainage blind pipe 4 to be discharged.

Preferably, in this embodiment, the drainage layer 302 is a spinneret pad mesh, a three-dimensional mesh, or a cross-elastic mesh.

In this embodiment, the shape of the spinneret pad net is preferably in a wave shape or a boss shape, so that the drainage layer 302 has a larger water flow space between the filter layer 301 and the buffer layer 303.

In this embodiment, preferably, the waterproof layer 304 is a waterproof board, and the waterproof board is made of a polymer material, specifically, the waterproof board is an EVA waterproof board, which can effectively perform waterproofing.

In this embodiment, preferably, the filter layer 301 is made of a nonwoven fabric, so as to ensure the filtering performance, thereby filtering the sediment and stones in the water seepage of the primary support.

In this embodiment, preferably, the material used for the buffer layer 303 is a non-woven fabric or a self-adhesive fabric, so that the buffer layer 303 has flexibility and deformability, can play a role in buffering, plays a role in buffering and protecting the drainage layer 302 and the waterproof layer 304, and can also facilitate contact connection with the waterproof layer 304 and the drainage layer 302.

In this embodiment, the drainage layer 302 is preferably adhesively connected (glued) to both the filter layer 301 and the buffer layer 303.

In this embodiment, the drainage layer 302 is preferably thermally fused (thermally covered) with the filtration layer 301 and the buffer layer 303.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. A drainage structure, characterized in that: the filter comprises a filter layer, a drainage layer and a buffer layer which are sequentially connected, wherein the drainage layer is of a three-dimensional net structure and is made of high polymer materials or metal materials, the filter layer is made of non-woven fabrics, and the buffer layer is made of non-woven fabrics or self-adhesive fabrics.

2. A drainage structure according to claim 1, wherein: the drainage layer is a crossed elastic net.

3. A drainage structure according to claim 1, wherein: the drainage layer is a spinning pad net or a three-dimensional structure net.

4. A drainage structure according to claim 3, wherein: the shape of the spinning pad net is wave-shaped or boss-shaped.

5. A drainage structure according to any of claims 1, 2 or 3, wherein: the drainage layer is connected with the filter layer and the buffer layer by adopting adhesive.

6. A drainage structure according to any of claims 1, 2 or 3, wherein: the drainage layer is connected with the filter layer and the buffer layer by adopting hot melting.