CN216518023U

CN216518023U - Shield tunnel combined type crossover section tunnel structure

Info

Publication number: CN216518023U
Application number: CN202122734063.8U
Authority: CN
Inventors: 黄木秀
Original assignee: Guangxi Jinlu Investment And Construction Co ltd
Current assignee: Guangxi Jinlu Investment And Construction Co ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-05-13
Anticipated expiration: 2031-11-09

Abstract

The utility model discloses a shield tunnel combined type crossover section tunnel structure which comprises a main tunnel and a crossover tunnel, wherein the main tunnel and the crossover tunnel penetrate through a mountain body, a patio is arranged at the joint of the main tunnel and the crossover tunnel, an inner reinforcing layer, a damping layer, an outer reinforcing layer and a waterproof layer are sequentially arranged on the outer sides of the main tunnel and the crossover tunnel from inside to outside, and the waterproof layer is attached to the inside of the mountain body. The shock absorption layer is arranged, so that the vibration sense in the tunnel is reduced when a vehicle passes through the shock absorption layer, and meanwhile, certain earthquake destructive force can be absorbed when natural disasters such as earthquake occur, so that the main structure of the tunnel is protected; through setting up the courtyard between main tunnel and ferry tunnel, under emergency, can do interim passway for escaping to can provide fresh air, also make things convenient for fire fighter's rescue.

Description

Shield tunnel combined type crossover section tunnel structure

Technical Field

The utility model belongs to the field of tunnel engineering, and particularly relates to a shield tunnel combined type crossover section tunnel structure.

Background

Tunnels are engineered structures buried in the ground, a form of human use of underground space. The tunnel can be divided into a traffic tunnel, a hydraulic tunnel, a municipal tunnel, a mine tunnel and a military tunnel. The structure of the tunnel comprises two parts, namely a main building and accessory equipment. The main building consists of a tunnel body and a tunnel door, the auxiliary equipment comprises a car-avoiding tunnel, fire-fighting equipment, emergency communication and water-proof and drainage equipment, and the long tunnel is also provided with special ventilation and lighting equipment.

The existing common tunnel construction method is a shield method, but a crossline section tunnel is usually constructed by an open excavation method or a shallow-buried underground excavation method, the crossline tunnel needs to be communicated with a main tunnel for realizing the line change of a track, and the requirement on the structural stability of the joint of the crossline tunnel and the main tunnel is strong. For this reason, those skilled in the art have provided a shield tunnel combined type crossovers tunnel structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a shield tunnel combined type crossover section tunnel structure to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a shield tunnel combination type ferry line section tunnel structure, includes main tunnel and ferry line tunnel, main tunnel with the ferry line tunnel all runs through the mountain body, main tunnel with the handing-over department of ferry line tunnel is provided with the courtyard, main tunnel with the outside of ferry line tunnel has set gradually interior back up coat, buffer layer, outer back up coat and waterproof layer from inside to outside, the waterproof layer with the inside laminating of mountain body.

As a still further scheme of the utility model: the outer reinforcing layer is attached to the inner side of the waterproof layer, and the damping layer is attached to the inner side of the outer reinforcing layer and the outer side of the inner reinforcing layer respectively.

As a still further scheme of the utility model: the main tunnel with one side that the cross over line tunnel with the courtyard is connected all is provided with the fire door, the top of courtyard is provided with the lid.

As a still further scheme of the utility model: the main tunnel with the basement sclerosis layer has been laid to ferry line tunnel bottom, the both ends on basement sclerosis layer with the massif connection, just the terminal surface of interior back up coat, buffer layer, outer back up coat and waterproof layer all with the top surface on basement sclerosis layer is connected.

As a still further scheme of the utility model: and a plurality of anchoring rods are inserted into the main tunnel and the crossover tunnel, and the anchoring rods penetrate through the inner reinforcing layer, the damping layer, the outer reinforcing layer and the waterproof layer in sequence and then are inserted into the mountain body.

As a still further scheme of the utility model: a plurality of drainage channels are laid in the base hardening layer, a plurality of support rods are inserted in the base hardening layer, a plurality of reinforcing ribs are arranged at the bottom of each support rod, and the reinforcing ribs are inserted into the earth surface.

Compared with the prior art, the utility model has the beneficial effects that: by arranging the damping layer, the vibration sense in the tunnel is reduced when a vehicle passes through the tunnel, and meanwhile, a certain earthquake destructive force can be absorbed to protect the main structure of the tunnel when natural disasters such as earthquakes occur; through setting up the courtyard between main tunnel and ferry tunnel, under emergency, can do interim passway for escaping to can provide fresh air, also make things convenient for fire fighter's rescue.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a sectional view of a shield tunnel combined type crossovers section tunnel structure.

In the figure: 1. a mountain body; 2. a primary tunnel; 3. a crossover tunnel; 4. an inner reinforcement layer; 5. a shock-absorbing layer; 6. an outer reinforcement layer; 7. a waterproof layer; 8. a substrate hardening layer; 9. raise shafts; 10. a cover body; 11. a fire door; 12. a drainage channel; 13. a support bar; 14. and (4) anchoring the rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): a shield tunnel combined type crossline section tunnel structure is shown in figure 1 and comprises a main tunnel 2 and a crossline tunnel 3, wherein the main tunnel 2 is a shield tunnel, the crossline tunnel 3 adopts an open excavation method or a shallow-buried underground excavation method and is communicated with the main tunnel 2, the main tunnel 2 and the crossline tunnel 3 both penetrate through a mountain body 1, a patio 9 is arranged at the joint of the main tunnel 2 and the crossline tunnel 3, a fire door 11 is arranged on one side, connected with the patio 9, of the main tunnel 2 and the crossline tunnel 3, personnel in the main tunnel 2 and the crossline tunnel 3 can open the fire door 11 to enter the patio 9 for temporary refuge in case of emergency, a cover body 10 is arranged at the top of the patio 9, rescuers can open the cover body 10 to convey fresh air into the tunnel, and rescue the personnel in the tunnel through the patio 9.

Preferably, the outer sides of the main tunnel 2 and the crossover tunnel 3 are sequentially provided with an inner reinforcing layer 4, a shock-absorbing layer 5, an outer reinforcing layer 6 and a waterproof layer 7 from inside to outside, the waterproof layer 7 is attached to the inside of the mountain body 1, the outer reinforcing layer 6 is attached to the inner side of the waterproof layer 7, the shock-absorbing layer 5 is respectively attached to the inner side of the outer reinforcing layer 6 and the outer side of the inner reinforcing layer 4, a plurality of anchoring rods 14 are inserted into the main tunnel 2 and the crossover tunnel 3, the anchoring rods 14 sequentially penetrate through the inner reinforcing layer 4, the shock-absorbing layer 5, the outer reinforcing layer 6 and the waterproof layer 7 and then are inserted into the mountain body 1, the overall stability of the tunnel is enhanced by the anchoring rods 14, furthermore, the shock-proof materials such as sand and stone can be filled in the shock-proof layer 5, the shock feeling generated by the passing of vehicles in the tunnel can be reduced, and simultaneously, when natural disasters such as earthquake occur, the damage force of the earthquake can be absorbed, and the damage of the earthquake to the tunnel is reduced.

Preferably, basement sclerosis layer 8 has been laid to

main tunnel

2 and 3 bottoms of cross-over tunnel, basement sclerosis layer 8's both ends are connected with mountain 1, and interior back up coat 4, buffer layer 5, the terminal surface of outer back up coat 6 and waterproof layer 7 all is connected with basement sclerosis layer 8's top surface, a plurality of drainage channel 12 have been laid to basement sclerosis layer 8 inside, and basement sclerosis layer 8 inside is inserted and is equipped with many spinal branchs pole 13, the bottom of bracing piece 13 is provided with many strengthening ribs, inside the strengthening rib inserts the earth's surface, strengthen the steadiness of tunnel bottom through bracing piece 13.

According to the utility model, the shock absorption layer 5 is arranged, so that the vibration sense in the tunnel is reduced when a vehicle passes through the tunnel, and meanwhile, a certain earthquake destructive force can be absorbed when natural disasters such as an earthquake occur, so that the main structure of the tunnel is protected; by arranging the patio 9 between the main tunnel 2 and the crossover tunnel 3, a temporary escape passage can be formed in an emergency, fresh air can be provided, and rescue of fire fighters is facilitated.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "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 directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing is merely exemplary and illustrative of the present invention, and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a shield tunnel combination type ferry line section tunnel structure, includes main tunnel (2) and ferry line tunnel (3), main tunnel (2) with the mountain body (1) is all run through in ferry line tunnel (3), its characterized in that, main tunnel (2) with the handing-over department of ferry line tunnel (3) is provided with raise (9), main tunnel (2) with the outside from interior to exterior of ferry line tunnel (3) has set gradually interior back up coat (4), buffer layer (5), outer back up coat (6) and waterproof layer (7), waterproof layer (7) with the inside laminating of mountain body (1).

2. The shield tunnel combined type crossover section tunnel structure of claim 1, wherein the outer reinforcement layer (6) is attached to an inner side of the waterproof layer (7), and the shock-absorbing layer (5) is attached to an inner side of the outer reinforcement layer (6) and an outer side of the inner reinforcement layer (4), respectively.

3. The shield tunnel combined type crossover section tunnel structure of claim 1, wherein a fire door (11) is provided at each side where the main tunnel (2) and the crossover tunnel (3) are connected with the patio (9), and a cover body (10) is provided at the top of the patio (9).

4. The shield tunnel combination type ferry section tunnel structure of claim 1, characterized in that, main tunnel (2) with ferry tunnel (3) bottom has laid base sclerosis layer (8), the both ends of base sclerosis layer (8) with mountain body (1) are connected, just the terminal surface of interior reinforcement layer (4), buffer layer (5), outer reinforcement layer (6) and waterproof layer (7) all with the top surface of base sclerosis layer (8) is connected.

5. The shield tunnel combined type crossover section tunnel structure of claim 2, wherein a plurality of anchoring rods (14) are inserted into the main tunnel (2) and the crossover tunnel (3), and the anchoring rods (14) penetrate through the inner reinforcing layer (4), the shock absorption layer (5), the outer reinforcing layer (6) and the waterproof layer (7) in sequence and then are inserted into the mountain body (1).

6. The shield tunnel combined type crossover segment tunnel structure of claim 4, wherein a plurality of drainage channels (12) are laid inside the base hardened layer (8), a plurality of support rods (13) are inserted inside the base hardened layer (8), a plurality of reinforcing ribs are arranged at the bottom of the support rods (13), and the reinforcing ribs are inserted inside the earth surface.