Underpass engineering waterproof structure

Abstract

A waterproof structure for tunnel engineering relates to the technical field of road waterproofing and comprises a structural bottom plate, a slope making layer and a pavement layer which are sequentially arranged from bottom to top, settlement joints are arranged in the structural bottom plate and the slope making layer, a drainage structure is arranged in the slope making layer, a drainage space is formed between the drainage structure and the structural bottom plate, and the drainage space is communicated with the pavement layer. The settlement joint of the structural bottom plate is located in the drainage space. The drainage structure is embedded in the slope making layer, water flow permeating from the settlement joint is blocked and drained through the drainage space, the influence of underground water on the tunnel structure is reduced, and the service life of the pavement structure is prolonged.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of road waterproofing, in particular to a tunnel engineering waterproof structure. BACKGROUND

[0002] As an important engineering of urban traffic, the municipal tunnel structure must ensure absolute safety. Groundwater seepage is an important problem of the tunnel structure engineering. Groundwater seepage can cause damage to the roadbed. Therefore, the waterproofing of the tunnel road surface is an important link of the tunnel structure engineering, and the waterproofing must have long-term and stability.

[0003] REFERENCE Figure 1 As shown in the figure, in the tunnel structure, the tunnel is provided with a structure bottom plate 1, a slope-finding layer 2 and a road surface layer 3 from bottom to top. In order to reduce the influence of settlement on the tunnel, a settlement joint 4 is arranged in the structure bottom plate 1 and the slope-finding layer 2 during the construction of the tunnel. Groundwater seeps up at the settlement joint 4. Since the joint is a weak link of waterproofing in the tunnel structure engineering, especially at the settlement joint 4 of the structure bottom plate 1, although waterproofing materials such as waterproofing coiled material, externally attached rubber waterstop and middle-buried steel edge rubber waterstop are used, the waterproofing materials all have an effective waterproofing service life, and the service life of the waterproofing is generally less than the service life of the structure, which needs to be improved. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problem of tunnel waterproofing in the background art, the application provides a tunnel engineering waterproof structure.

[0005] The tunnel engineering waterproof structure provided by the application adopts the following technical scheme:

[0006] A tunnel engineering waterproof structure comprises a structure bottom plate, a slope-finding layer and a road surface layer which are sequentially arranged from bottom to top. Settlement joints are arranged in the structure bottom plate and the slope-finding layer. A drainage structure is arranged in the slope-finding layer. A drainage space is formed between the drainage structure and the structure bottom plate. The opening at the settlement joint of the structure bottom plate is located in the drainage space.

[0007] By adopting the above technical scheme, the water seepage from the settlement joint is blocked and discharged through the drainage space by pre-buried drainage structure in the slope-finding layer. The influence of groundwater on the tunnel structure is reduced, and the service life of the road surface structure is improved.

[0008] Preferably, the drainage structure comprises a support part and a connecting part. The drainage space is formed in the region surrounded by the support part and the structure bottom plate. The connecting part is fixedly connected with the structure bottom plate.

[0009] By adopting the above technical scheme, the connecting part is fixed to the structure bottom plate, and the support part and the structure bottom plate form the drainage space, thereby enhancing the drainage effect.

[0010] Preferably, the connecting part is in abutting fit with the structural bottom plate and is detachably connected through an expansion bolt.

[0011] By adopting the above technical scheme, the connecting part and the structural bottom plate are detachably connected, which facilitates installation.

[0012] Preferably, a sealing rubber block is arranged between the connecting part and the structural bottom plate.

[0013] By adopting the above technical scheme, the sealing rubber block is arranged, which enhances the waterproof effect.

[0014] Preferably, a plurality of the drainage structures are arranged along the horizontal direction of the road, and the adjacent drainage structures are in abutting fit.

[0015] By adopting the above technical scheme, the plurality of drainage structures are arranged, which forms a drainage channel and improves the efficiency and effect of drainage.

[0016] Preferably, a sealing structure is arranged between the adjacent drainage structures.

[0017] By adopting the above technical scheme, the sealing property between the adjacent drainage structures is enhanced, and the waterproof effect is further improved.

[0018] Preferably, the sealing structure is a sealing strip.

[0019] By adopting the above technical scheme, the sealing is performed through the sealing strip, which ensures the firmness and long-term property of the sealing.

[0020] Preferably, non-woven fabric is laid on the settlement joint of the structural bottom plate, and the non-woven fabric is in abutting fit with the drainage structure.

[0021] By adopting the above technical scheme, laying the settlement joint on the structural bottom plate can enhance the structure of the structural bottom plate on both sides of the settlement joint, prevent the settlement joint from cracking, and improve the service life of the settlement joint.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. The drainage structure is pre-buried in the slope-finding layer to block the water flow leaked from the settlement joint and guide the water flow to the drainage space, which improves the waterproof quality of the settlement joint, protects the pavement structure, and prolongs the service life of the road.

[0024] 2. The detachable drainage structure is used, the connecting part and the structural bottom plate are detachably connected, which facilitates installation and maintenance, and the sealing rubber block is arranged, which enhances the waterproof effect.

[0025] 3. By setting multiple drainage structures, sealing structures and non-woven fabrics, the overall waterproofness and reliability are further improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure in the background art;

[0027] Figure 2 is a schematic diagram of the overall structure of the embodiment of the application;

[0028] Figure 3 is a schematic diagram of the arrangement of the drainage structure of the embodiment of the application.

[0029] Reference signs: 1, structure bottom plate; 2, slope layer; 3, pavement layer; 4, settlement joint; 5, drainage structure; 51, support part; 52, connecting part; 6, drainage space; 7, sealing rubber block; 8, sealing structure; 81, sealing rubber strip; 9, non-woven fabric. DETAILED DESCRIPTION

[0030] The following will be described in detail below with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 3 The application will be further described in detail.

[0031] The embodiment of the application discloses a tunnel engineering waterproof structure.

[0032] Reference Figure 2 A tunnel engineering waterproof structure comprises a structure bottom plate 1, a slope layer 2 and a pavement layer 3 arranged in sequence from bottom to top, settlement joints 4 are arranged in the structure bottom plate 1 and the slope layer 2, drainage structures 5 are arranged in the slope layer 2, drainage spaces 6 are formed between the drainage structures 5 and the structure bottom plate 1, and the openings of the settlement joints 4 of the structure bottom plate 1 are located in the drainage spaces 6; the drainage structure 5 comprises a support part 51 and a connecting part 52, the drainage space 6 is formed in the region surrounded by the support part 51 and the structure bottom plate 1, detachable connection is formed between the connecting part 52 and the structure bottom plate 1, and the detachable connection is specifically fixed connection realized through expansion bolts, and in order to enhance the waterproof effect, sealing rubber blocks 7 are further arranged between the connecting part 52 and the structure bottom plate 1.

[0033] Reference Figure 2 and Figure 3, the drainage structure 5 is designed as a "J" shaped stainless steel structure, a plurality of drainage structures 5 are arranged along the horizontal direction, and abutting cooperation is formed between adjacent drainage structures 5. In order to further enhance the waterproof effect, a sealing structure 8 is also arranged between adjacent drainage structures 5, which is specifically a sealing rubber strip 81. During installation, the sealing rubber strip 81 is pasted on the side of the drainage structure 5, and then the side of another drainage structure 5 is abutted against the sealing rubber strip 81, and the drainage structure 5 is riveted, so that the sealing rubber strip 81 is fixed between the two drainage structures 5, preventing water from penetrating from the settlement joint 4 to the pavement layer 3; in other embodiments, the adjacent drainage structures 5 can be welded.

[0034] Referring to Figure 2 The non-woven fabric 9 is also laid at the settlement joint 4 of the structural bottom plate 1, and abutting cooperation is formed between the non-woven fabric 9 and the drainage structure 5; the non-woven fabric 9 can enhance the strength of the structural bottom plate 1 on both sides of the settlement joint 4, preventing the settlement joint 4 from cracking.

[0035] Referring to Figure 2 The construction steps are as follows: at the settlement joint 4 of the structural bottom plate 1, the drainage structure 5 is placed along the settlement joint 4 before the construction of the slope layer 2, C40 concrete is used to construct the slope layer 2, and the expansion screw is used to fix the drainage structure 5 to the structural bottom plate 1 at the support part 51; the gap is sealed with weather-resistant silicone glue at the joint between the support part 51 of the drainage structure 5 and the structural bottom plate 1; during the construction of the slope, the disturbance to the water guide embedded part of the drainage structure 5 is minimized; part of the gravel can be placed in the drainage space 6 to fill the support and prevent the deformation of the drainage structure 5; the structure is simple to construct, the materials are cheap, and the waterproof effect is long-lasting and stable, effectively solving the water seepage problem at the settlement joint 4 of the structural bottom plate 1 of the tunnel engineering, and improving the waterproof ability of the tunnel.

[0036] At the same time, it should be noted that although the tunnel engineering is taken as an example for illustration, the waterproof structure of the present application is not limited to the tunnel engineering, but can also be applied to other building engineering requiring waterproof, such as tunnels, basements, etc., in addition, the shape and material of the drainage structure 5 are not limited to those described in the present application, and can be selected and designed according to the specific engineering requirements.

[0037] The implementation principle of the embodiment of the present application is that when the settlement of the structural bottom plate 1 of the tunnel engineering structure leaks water, the water flow will flow into the drainage space 6, be blocked and drained by the drainage structure 5, thereby avoiding damage to the pavement layer 3, and improving the service life of the pavement layer 3.

[0038] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the basis of the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A tunnel engineering waterproof structure, characterized by: The invention comprises a structural base plate (1), a slope leveling layer (2) and a pavement layer (3) which are sequentially arranged from bottom to top; a settlement joint (4) is provided in the structural base plate (1) and the slope leveling layer (2); a drainage structure (5) is provided in the slope leveling layer (2); a drainage space (6) is formed between the drainage structure (5) and the structural base plate (1); and an opening of the settlement joint (4) of the structural base plate (1) is located in the drainage space (6).

2. The tunnel engineering waterproof structure according to claim 1, characterized in that: The drainage structure (5) comprises a supporting portion (51) and a connecting portion (52); the drainage space (6) is formed in an area enclosed by the supporting portion (51) and the structural base plate (1); and a detachable connection is formed between the connecting portion (52) and the structural base plate (1).

3. The tunnel engineering waterproof structure according to claim 2, characterized in that: The connecting portion (52) is in abutment with the structural base plate (1) and is fixedly connected via expansion bolts.

4. The tunnel engineering waterproof structure according to claim 3, characterized in that: A sealing rubber block (7) is provided between the connecting portion (52) and the structural bottom plate (1).

5. The tunnel engineering waterproof structure according to claim 1, characterized in that: A plurality of the drainage structures (5) are arranged in the horizontal direction, and adjacent drainage structures (5) are in abutment with each other.

6. The tunnel engineering waterproof structure according to claim 5, characterized in that: A sealing structure (8) is provided between adjacent drainage structures (5).

7. The tunnel engineering waterproof structure according to claim 6, characterized in that: The sealing structure (8) is configured as a sealing rubber strip (81).

8. The tunnel engineering waterproof structure according to claim 1, characterized in that: A non-woven fabric (9) is also provided at the settlement joint (4) of the structural bottom plate (1), and the non-woven fabric (9) forms an abutting fit with the drainage structure (5).

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