Single-hole two-way tunnel for urban construction

Abstract

The utility model discloses a single-hole two-way tunnel for urban construction, which comprises a tunnel main body, a plurality of basement entrances and exits are arranged on one side of the tunnel main body, the other side of the tunnel main body is communicated with a planned road, one end of the tunnel main body is communicated with a current road, and the tunnel main body comprises a tunnel decoration body and two platforms. The two sides of the bottom end of the inner wall of the tunnel decoration body are fixedly connected with the bottom ends of the two platforms correspondingly, a road body is fixedly installed in the middle of the bottom end of the inner wall of the tunnel decoration body, and the tunnel decoration body comprises a supporting layer, an isolation layer and a reinforcing layer. According to the single-hole two-way tunnel for urban construction, by arranging the tunnel body and additionally arranging the two-way road body, construction is facilitated, the requirement of people for market vitality is met, the tunnel decoration body and the road body of the tunnel are high in hardness and strong in supporting force, the tunnel body is reasonable in structure, the driving requirement of vehicles is met, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnels, and particularly relates to a single-hole two-way tunnel for urban construction. Background Technique

[0002] The base within the urban-rural mixed landscape is surrounded by mountains. The southeast corner of the base is the current urban area, and a river runs through from east to west. The villages, mountains, and forests within the base together form an ecological pattern of "mountains + water + forests + cities + villages". Selecting this plot has the following advantages: The plot is located in the middle of the mountains, with a river passing through it, having rich natural resources, convenient external transportation. The Subei Line connects outside the county, and the roads on both sides of the river lead to the county center. There are rich educational resources, which are suitable for carrying out research and natural education activities.

[0003] The advantages of a single-hole two-way tunnel mainly include that the required site width is smaller than the position width of two single-track tunnels, which is easy to arrange; the excavation area is smaller than the total excavation area of two single-track tunnels, with less engineering quantity and less interference during construction; the clearance is larger, the tunnel is spacious, and there are conditions for using large-scale machinery for construction; the ventilation condition is good, and maintenance is more convenient.

[0004] However, the above plot has the following disadvantages:

[0005] The traditional plot road organization is not smooth, the current traffic structure within the plot is simple, and it cannot meet the development needs; the terrain and landform are rugged, the plot has many mountains, and the terrain fluctuates greatly, which is not conducive to construction, the market vitality is insufficient, the commercial facilities within the plot are insufficient, and it cannot attract people; the supporting facilities are incomplete, and except for educational and medical resources, other supporting facilities are lacking. Content of the Utility Model

[0006] The purpose of the utility model is to provide a single-hole two-way tunnel for urban construction, so as to solve the problems raised in the above background technique that the traditional plot road organization is not smooth, the current traffic structure within the plot is simple, and it cannot meet the development needs; the terrain and landform are rugged, the plot has many mountains, and the terrain fluctuates greatly, which is not conducive to construction, the market vitality is insufficient, the commercial facilities within the plot are insufficient, and it cannot attract people; the supporting facilities are incomplete, and except for educational and medical resources, other supporting facilities are lacking.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A single-hole two-way tunnel for urban construction, including a tunnel main body. On one side of the tunnel main body, there are provided several basement entrances and exits. On the other side of the tunnel main body, there is a connected planned road. One end of the tunnel main body is connected to an existing road. The tunnel main body includes a tunnel decoration body and two platforms. The two sides of the bottom end of the inner wall of the tunnel decoration body are respectively fixedly connected to the bottom ends of the two platforms. In the middle of the bottom end of the inner wall of the tunnel decoration body, a road main body is fixedly installed. The tunnel decoration body includes a support layer, an isolation layer, and a reinforcement layer. The inner side of the support layer is fixedly connected to the outer side of the isolation layer. The inner side of the isolation layer is fixedly connected to the outer side of the reinforcement layer. The road main body includes a first asphalt layer, an adhesive layer, a second asphalt layer, an emulsified layer, and a road surface layer. The top end of the first asphalt layer is fixedly connected to the bottom end of the adhesive layer. The top end of the adhesive layer is fixedly connected to the bottom end of the second asphalt layer. The top end of the second asphalt layer is fixedly connected to the bottom end of the emulsified layer. The top end of the emulsified layer is fixedly connected to the bottom end of the road surface layer. Vehicles drive into the tunnel main body through the basement entrances and exits and the planned road, and vehicles drive out of the tunnel main body through the existing road.

[0008] Preferably, the support layer is made of concrete support material, the isolation layer is made of aluminum single-board material, and the reinforcement layer is made of secondary initial lining formwork building concrete material.

[0009] Preferably, the first asphalt layer is made of asphalt concrete material, the adhesive layer is made of emulsified asphalt material, the second asphalt layer is made of medium-grained concrete material, the emulsified layer is made of emulsified asphalt material, the road surface layer is made of concrete material, and the bottom end of the first asphalt layer is fixedly connected to the tunnel decoration body.

[0010] Preferably, reinforcement brackets are fixedly installed on both sides of the inner wall of the tunnel decoration body. The reinforcement brackets reinforce the tunnel main body from both sides of the tunnel decoration body to improve the firmness of the tunnel main body itself.

[0011] Preferably, a central drainage pipe is fixedly connected inside the tunnel decoration body, and the water in the tunnel main body is discharged to the outside through the central drainage pipe.

[0012] Preferably, two traffic lights are fixedly installed in the middle of the top end of the tunnel decoration body, and lighting lamps are fixedly installed on both sides of the top end of the tunnel decoration body. The lighting lamps display the road conditions in the tunnel main body in real time, and the traffic lights command the two-way traffic in the tunnel main body.

[0013] Preferably, guardrails are fixedly installed on one side of the top ends of the two platforms, and several drainage grooves are provided in the middle of the two platforms. The guardrails protect the vehicles driving in the tunnel main body from one side of the platform, and the water on the platform is transported into the central drainage pipe through the drainage grooves.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: By setting the tunnel main body and adding a two-way road main body, it is convenient for construction and meets people's demand for market vitality. The tunnel decoration main body and the road main body of this tunnel have high hardness and strong supporting force, and the tunnel main body has a reasonable structure, meeting the driving needs of vehicles and having high practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the use of the tunnel main body of the utility model;

[0016] Figure 2 It is a cross-sectional view of the tunnel main body of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the tunnel decoration body of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the road main body of the utility model.

[0019] In the figure: 1, tunnel main body; 2, basement entrance and exit; 3, planned road; 4, existing road; 5, lighting lamp; 6, traffic signal; 7, tunnel decoration body; 71, support layer; 72, isolation layer; 73, reinforcement layer; 8, reinforcement bracket; 9, platform; 10, guardrail; 11, road main body; 111, first asphalt layer; 112, bonding layer; 113, second asphalt layer; 114, emulsified layer; 115, road surface layer; 12, central drain pipe; 13, drainage trough. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0021] Please refer to Figures 1-4, the utility model provides a single - hole two - way tunnel for urban construction, including a tunnel main body 1. On one side of the tunnel main body 1, there are several basement entrances and exits 2. On the other side of the tunnel main body 1, there is a planned road 3 connected. One end of the tunnel main body 1 is connected to an existing road 4. The tunnel main body 1 includes a tunnel decoration body 7 and two platforms 9. The two sides of the bottom end of the inner wall of the tunnel decoration body 7 are respectively fixedly connected to the bottom ends of the two platforms 9. In the middle of the bottom end of the inner wall of the tunnel decoration body 7, a road main body 11 is fixedly installed. The tunnel decoration body 7 includes a support layer 71, an isolation layer 72, and a reinforcement layer 73. The inner side of the support layer 71 is fixedly connected to the outer side of the isolation layer 72. The inner side of the isolation layer 72 is fixedly connected to the outer side of the reinforcement layer 73. The road main body 11 includes a first asphalt layer 111, an adhesive layer 112, a second asphalt layer 113, an emulsified layer 114, and a road surface layer 115. The top end of the first asphalt layer 111 is fixedly connected to the bottom end of the adhesive layer 112. The top end of the adhesive layer 112 is fixedly connected to the bottom end of the second asphalt layer 113. The top end of the second asphalt layer 113 is fixedly connected to the bottom end of the emulsified layer 114. The top end of the emulsified layer 114 is fixedly connected to the bottom end of the road surface layer 115. Vehicles enter the tunnel main body 1 through the basement entrances and exits 2 and the planned road 3, and vehicles exit the tunnel main body 1 through the existing road 4.

[0022] The support layer 71 is made of concrete support material, the isolation layer 72 is made of aluminum single - board material, and the reinforcement layer 73 is made of secondary initial lining formwork building concrete material.

[0023] The first asphalt layer 111 is made of asphalt concrete material, the adhesive layer 112 is made of emulsified asphalt material, the second asphalt layer 113 is made of medium - sized aggregate concrete material, the emulsified layer 114 is made of emulsified asphalt material, the road surface layer 115 is made of concrete material, and the bottom end of the first asphalt layer 111 is fixedly connected to the tunnel decoration body 7.

[0024] On both sides of the inner wall of the tunnel decoration body 7, reinforcement brackets 8 are fixedly installed. The reinforcement brackets 8 reinforce from both sides of the tunnel decoration body 7 to improve the firmness of the tunnel main body 1 itself.

[0025] Inside the tunnel decoration body 7, a central drainage pipe 12 is fixedly connected. The water in the tunnel main body 1 is drained to the outside through the central drainage pipe 12.

[0026] In the middle of the top end of the tunnel decoration body 7, two traffic lights 6 are fixedly installed. On both sides of the top end of the tunnel decoration body 7, lighting lamps 5 are fixedly installed. The lighting lamps 5 display the road conditions in the tunnel main body 1 in real - time, and the traffic lights 6 command the two - way traffic in the tunnel main body 1.

[0027] A guardrail 10 is fixedly installed on one side of the top of the two platforms 9, and a plurality of drainage grooves 13 are opened in the middle of the two platforms 9. The guardrail 10 protects the vehicles traveling in the tunnel body 1 from one side of the platform 9, and the water on the platform 9 is transported to the central drainage pipe 12 through the drainage grooves 13.

[0028] When the embodiment of the present application is used: a short tunnel is set up on the main line of this project. This tunnel is a single-hole bidirectional tunnel. The design starting point of the tunnel is KO+345.00, and the design end point of the tunnel is KO+610.00. The geometric line shape and clearance of the tunnel are designed according to 30km / h. The basic width of the building limit, urban road tunnel, two-way two-lane W-2x4m, L—0.50m, LR—0.50m; sidewalk, 1.5m on each side, total width 12m; basic height of the building limit: 4.5m for the carriageway; 2.5m for the sidewalk; tunnel clearance section determined after section optimization analysis It is a five-center circle, and the inner space takes into account the reserved decoration layer of 20cm on the side wall, and the construction error of 5cm on the arch. Space is reserved on the side wall for communication, lighting, fire protection, and power distribution caverns. The location of the tunnel entrance is determined based on the principle of "entering the tunnel early and exiting the tunnel late", minimizing the excavation height of the back slope beside the tunnel entrance to ensure the stability of the mountain while reducing damage to the natural landscape of the tunnel entrance. The form of the tunnel gate is reasonably selected based on the principle of "overall coordination and naturalness". This project takes into account the terrain, geological conditions, lighting, tunnel operation management, structure and environmental protection, and the entrance and exit tunnel gates are both end wall type.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A single-hole bidirectional tunnel for urban construction, comprising a tunnel body (1), characterized in that: A plurality of underground garage entrances and exits (2) are provided on one side of the tunnel body (1), a planned road (3) is connected to the other side of the tunnel body (1), and an existing road (4) is connected to one end of the tunnel body (1). The tunnel body (1) comprises a tunnel decoration body (7) and two platforms (9), the two sides of the bottom end of the inner wall of the tunnel decoration body (7) are respectively fixedly connected to the bottom ends of the two platforms (9), a road body (11) is fixedly installed in the middle of the bottom end of the inner wall of the tunnel decoration body (7), and the tunnel decoration body (7) comprises a supporting layer (71), an isolation layer (72) and a reinforcement layer (73), the inner side of the supporting layer (71) and the isolation layer (72) are connected to each other. ), the inner side of the isolation layer (72) is fixedly connected to the outer side of the reinforcement layer (73), the road body (11) comprises a first asphalt layer (111), an adhesive layer (112), a second asphalt layer (113), an emulsion layer (114) and a pavement layer (115), the top end of the first asphalt layer (111) is fixedly connected to the bottom end of the adhesive layer (112), the top end of the adhesive layer (112) is fixedly connected to the bottom end of the second asphalt layer (113), the top end of the second asphalt layer (113) is fixedly connected to the bottom end of the emulsion layer (114), and the top end of the emulsion layer (114) is fixedly connected to the bottom end of the pavement layer (115).

2. A single-hole bidirectional tunnel for urban construction according to claim 1, characterized in that: The supporting layer (71) is made of concrete supporting material, the isolating layer (72) is made of aluminum veneer material, and the reinforcing layer (73) is made of secondary primary formwork building concrete material.

3. A single-hole bidirectional tunnel for urban construction according to claim 1, characterized in that: The first asphalt layer (111) is made of asphalt concrete material, the adhesive layer (112) is made of emulsified asphalt material, the second asphalt layer (113) is made of medium-grained concrete material, the emulsified layer (114) is made of emulsified asphalt material, and the pavement layer (115) is made of concrete material. The bottom end of the first asphalt layer (111) is fixedly connected to the tunnel decoration body (7).

4. A single-hole bidirectional tunnel for urban construction according to claim 1, characterized in that: Reinforcement brackets (8) are fixedly mounted on both sides of the inner wall of the tunnel decoration body (7).

5. The single-hole bidirectional tunnel for urban construction according to claim 1, characterized in that: The interior of the tunnel decoration body (7) is fixedly connected to a central drainage pipe (12).

6. A single-hole bidirectional tunnel for urban construction according to claim 1, characterized in that: Two traffic signal lights (6) are fixedly mounted in the middle of the top of the tunnel decoration body (7), and lighting lamps (5) are fixedly mounted on both sides of the top of the tunnel decoration body (7).

7. The single-hole bidirectional tunnel for urban construction according to claim 1, characterized in that: A guardrail (10) is fixedly installed on one side of the top of the two platforms (9), and a plurality of drainage grooves (13) are opened in the middle of the two platforms (9).

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