CN217976245U

CN217976245U - Shield tunnel and station interface waterproof construction

Info

Publication number: CN217976245U
Application number: CN202221915006.8U
Authority: CN
Inventors: 邢振华; 许明堂; 李扬; 刘太阳; 李玉斌; 李永杰; 黄成�
Original assignee: China State Railway Investment Construction Group Co Ltd; China Construction Third Bureau Construction Engineering Co Ltd
Current assignee: China State Railway Investment Construction Group Co Ltd; China Construction Third Bureau Group Co Ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-12-06
Anticipated expiration: 2032-07-25

Abstract

The utility model discloses a shield constructs tunnel and station interface waterproof construction, including the tunnel, the station side wall is responsible for with the station drainage of setting in the station, be provided with waterproof construction between tunnel and the station side wall, waterproof construction centers on the interface end of station side wall, wholly is "U" shape, is provided with the round drain pipe on the waterproof construction in the station side wall outside, the water inlet has been seted up to the drain pipe upper end, the drain pipe lower extreme is responsible for the intercommunication with the station drainage, be provided with the inside annular boss of embedding waterproof construction on the tunnel, the both sides of station side wall are provided with the inside side pillar of embedding waterproof construction respectively. The utility model discloses can effectively improve the water-proof effects of shield tunnel and station kneck, can also improve the connection stability of tunnel and station side wall.

Description

Shield tunnel and station interface waterproof construction

Technical Field

The utility model relates to a technical field is built to the subway, in particular to shield tunnel and station interface waterproof construction.

Background

At present, an open cut method station and a shield method underground tunnel are the most commonly used combination modes in subway design. The underground excavation method is more and more widely applied to underground structures due to the influence of a plurality of factors such as existing buildings on the ground, underground dense pipelines, heavy traffic on the ground and the like. In actual engineering, along with the high-speed development of urban subways, the large-span underground excavation tunnels with parallel multiple lines are more and more, the design of a station interface structure and a shield tunnel interface is complex, and the problems of water leakage and incompatibility easily occur at the interface of the two structures with different stress modes.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the above-mentioned prior art, the utility model aims at providing a shield tunnel and station interface waterproof construction to solve current shield tunnel and the not good problem of station interface waterproof construction water-proof effects.

In order to realize the above-mentioned purpose, the utility model provides a shield tunnel and station interface waterproof construction, be responsible for including tunnel, station side wall and the station drainage of setting in the station, be provided with waterproof construction between tunnel and the station side wall, waterproof construction centers on the interface end of station side wall, wholly is "U" shape, is provided with the round drain pipe on the waterproof construction in the station side wall outside, the water inlet has been seted up to the drain pipe upper end, the drain pipe lower extreme is responsible for the intercommunication with the station drainage, be provided with the inside annular boss of embedding waterproof construction on the tunnel, the both sides of station side wall are provided with the inside side post of embedding waterproof construction respectively.

In the scheme, the method comprises the following steps: the waterproof structure sequentially comprises a U-shaped primary asphalt layer, a waterproof plate and a lining from inside to outside, and an expanded concrete layer and a permeable concrete layer are sequentially arranged on the surface of the lining outside the side wall of the station from inside to outside. The primary asphalt layer on the waterproof structure, which is in contact with the side wall of the station, has good viscosity and waterproofness; the waterproof board has the effect of enhancing the waterproof effect and is convenient for the molding of the lining; the inside sealed effect of waterproof construction is strengthened to the inflation concrete layer, and the impulsive force of the concrete layer buffering rainwater that permeates water protects the connector of tunnel and station better.

In the scheme, the method comprises the following steps: the reinforcing steel bar frame arranged in the lining is favorable for improving the strength of the lining.

In the scheme, the method comprises the following steps: the waterproof structure is provided with the asphalt waterproofing layer with the junction in tunnel, plays to glue effect and waterproof effect.

In the scheme, the method comprises the following steps: the drain pipe is located the circumference outside of waterproof construction, be provided with the secondary pitch layer on the circumference that waterproof construction and drain pipe correspond, the secondary pitch layer is located between expanded concrete layer and the concrete layer that permeates water, and is connected with the end on primary pitch layer, should be provided with and does benefit to the water-proof effects on the outer periphery of enhancement waterproof construction.

The utility model has the advantages that:

the waterproof structure is in a U-shaped structure, the interface end of the side wall of the station can be integrally surrounded, and compared with a linear waterproof structure which is only arranged at the contact position of the tunnel and the side wall of the station, the waterproof structure has a better waterproof effect; the drainage pipe is arranged on the waterproof structure and is communicated with the station drainage main pipe, part of rainwater on the outer side of the station side wall can enter the station drainage main pipe through the drainage pipe and is discharged outside the station drainage main pipe, and the arrangement can accelerate drainage and further improve the waterproof effect;

the annular boss is arranged on the tunnel and embedded into the waterproof structure, the side column is arranged on the station side wall and embedded into the waterproof structure, and the annular boss and the side column are matched with a fixing layer (such as a lining) in the waterproof structure, so that the connection stability of the tunnel and the station side wall can be effectively improved.

Drawings

Fig. 1 is the structure schematic diagram of the utility model after the waterproof structure is formed.

Fig. 2 is a schematic structural view of the section of the waterproof structure of the present invention.

Fig. 3 is a schematic view of the connection between the station side wall and the tunnel.

Detailed Description

As shown in fig. 1-3, a waterproof structure for a shield tunnel and a station interface mainly comprises a tunnel 1, a station side wall 2, a station drainage main pipe 6 arranged in a station, and a waterproof structure 3 arranged between the tunnel 1 and the station side wall 2.

The waterproof structure 3 surrounds the interface end of the station side wall 2, and the whole structure is U-shaped. Be provided with round drain pipe 4 on waterproof construction 3 in the station side wall 2 outside, water inlet 5 has been seted up to drain pipe 4 upper end, and drain pipe 4 lower extreme is responsible for 6 intercommunications with station drainage. The tunnel 1 is provided with an annular boss 7 embedded in the waterproof structure 3, and two sides of the station side wall 2 are respectively provided with side columns 8 embedded in the waterproof structure 3.

Preferably, the waterproof structure 3 sequentially comprises a U-shaped primary asphalt layer 12, a waterproof board 16 and a lining 9 from inside to outside, and an expanded concrete layer 11 and a permeable concrete layer 15 are sequentially arranged on the surface of the lining 9 on the outer side of the station side wall 2 from inside to outside. The primary asphalt layer 12 on the waterproof structure 3, which is in contact with the station side wall 2, has good viscosity and waterproofness; the waterproof plate 16 has the function of enhancing the waterproof effect and is convenient for forming the lining 9; the inside sealed effect of waterproof construction 3 is strengthened to expanded concrete layer 11, and the impulsive force of the concrete layer 15 buffering rainwater that permeates water protects the connector of tunnel 1 and station better.

Preferably, reinforcing cage 10 is provided inside lining 9 to improve the strength of lining 9.

Preferably, the waterproof structure 3 is provided with a waterproof asphalt layer 13 at the joint with the tunnel 1, so as to achieve the adhesion and waterproof effects.

Preferably, the drain pipe 4 is located outside the circumference of the waterproof structure 3, a secondary asphalt layer 14 is disposed on the circumference of the waterproof structure 3 corresponding to the drain pipe 4, and the secondary asphalt layer 14 is located between the expanded concrete 11 layer and the pervious concrete layer 15 and connected to the end of the primary asphalt layer 12, which is beneficial to enhancing the waterproof effect on the outer circumference of the waterproof structure 3. The method for connecting the primary asphalt layer 12 and the secondary asphalt layer 14 comprises the following steps: the asphalt at the corresponding end of the primary asphalt layer 12 is heated, then the secondary asphalt layer 14 is connected with the heating part, and the two are integrated after cooling.

Claims

1. The utility model provides a shield tunnel and station interface waterproof construction, includes tunnel (1), station side wall (2) and sets up station drainage in the station and is responsible for (6), be provided with waterproof construction (3) between tunnel (1) and station side wall (2), its characterized in that: waterproof construction (3) center on the interface end of station side wall (2), wholly are "U" shape, are provided with round drain pipe (4) on waterproof construction (3) in the station side wall (2) outside, water inlet (5) have been seted up to drain pipe (4) upper end, drain pipe (4) lower extreme and station drainage are responsible for (6) intercommunication, be provided with annular boss (7) of embedding waterproof construction (3) inside on tunnel (1), the both sides of station side wall (2) are provided with side column (8) of embedding waterproof construction (3) inside respectively.

2. The shield tunnel and station interface waterproof structure of claim 1, wherein: waterproof construction (3) are by interior to outer including once pitch layer (12), waterproof board (16) and lining cutting (9) that are the U-shaped in proper order, and lining cutting (9) surface in the station side wall (2) outside is by interior to outer having set gradually expanded concrete layer (11) and pervious concrete layer (15).

3. The shield tunnel and station interface waterproof structure of claim 2, wherein: and the reinforcing steel bar frame (10) is arranged in the lining (9).

4. The shield tunnel and station interface waterproof structure of claim 2, wherein: and a waterproof asphalt layer (13) is arranged at the joint of the waterproof structure (3) and the tunnel (1).

5. The shield tunnel and station interface waterproof structure of claim 2, wherein: the drainage pipe (4) is located the circumference outside of waterproof construction (3), be provided with secondary pitch layer (14) on the circumference that waterproof construction (3) and drainage pipe (4) correspond, secondary pitch layer (14) are located between expanded concrete (11) layer and the pervious concrete layer (15), and are connected with the end on primary pitch layer (12).