Single-layer lining gas anti-seepage structure
Through a single-layer lining gas anti-seepage structure, the gap is covered with curved strips and airbags, and gas is automatically exhausted to collect gas, which solves the safety accidents caused by gas leakage and achieves convenient gas management.
Patent Information
- Application Number
- CN202420454797.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-03-08
AI Technical Summary
During the construction of a stratigraphic tunnel that passes through coal-bearing seams, gas leaks easily lead to high risk of safety accidents, and the existing technology extraction methods are complex and inconvenient.
A single-layer lining gas anti-seepage structure is designed to cover the gaps through arcuate strips and install airbags. It uses cylinders and push rods to automatically exhaust gas, collect gas mixture gas, and store it through conduits and check valves to avoid gas leakage.
Effectively close the leak-prone point of gas, automatically collect gas, reduce the risk of excessive gas in the tunnel, and is more convenient and safer than extraction methods.
Smart Images
Figure CN222315179U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tunnel construction, in particular to a single-layer lining gas anti-seepage structure. Background Art
[0002] The current road construction is developing rapidly, with a large proportion of tunnels and an increasing number of gas tunnels. Gas is a water-insoluble, colorless, odorless gas with a permeability 1.6 times that of air. Its main components are alkanes, of which methane accounts for the vast majority. When it reaches a certain concentration, it can burn or explode. The so-called gas tunnel is a tunnel that passes through gas formations. Therefore, as more and more tunnels are built through gas-containing formations, if the management and prevention are not done properly during the construction and operation of the tunnel, it is easy to cause major safety accidents, and its safety issues are very serious.
[0003] At present, when constructing tunnels through coal-bearing strata, the coal seams are rich in gas, and the treatment of gas is extremely critical. In addition, when the tunnel is built, there will be gaps in the middle, and these areas are prone to gas leakage. In order to avoid the occurrence of gas accidents such as coal and gas outbursts, gas explosions, gas suffocation and injuries, and to avoid the spread of gas to non-coal seam gas-active areas during the construction period, it is necessary to prevent the gas in the coal seams from being penetrated. Therefore, in response to the above technical problems, a single-layer lining gas anti-seepage structure is proposed herein. Utility Model Content
[0004] The purpose of the utility model is to provide a single-layer lining gas anti-seepage structure, which is convenient for sealing gas leakage points in tunnels, collecting gas through air bags, and then collecting it through automatic exhaust, avoiding some dangerous situations caused by excessive gas in the tunnel, and is more convenient than using extraction technology to extract gas from coal seams or rock formations.
[0005] The utility model is realized by the following technical solutions:
[0006] A single-layer lining gas anti-seepage structure comprises a single-layer lining tunnel, wherein the single-layer lining tunnels are in several groups and are assembled with each other, a gap is formed between two groups of the single-layer lining tunnels, an arc-shaped bar is fixedly connected to the outside of the single-layer lining tunnel, and the arc-shaped bar completely covers the gap, a cavity is opened inside the arc-shaped bar, an air bag is installed inside the arc-shaped bar, a cylinder is fixedly connected to the outside of the arc-shaped bar, a push rod is fixedly connected to one side of the cylinder, air pipes are installed on both sides of the cylinder, the ends of the air pipes extend into the inside of the air bag, and the air pipes and the air bag are slidably connected, a connecting pipe is fixedly connected to the outside of the air pipe, a support frame is installed inside the single-layer lining tunnel, a storage box is fixedly connected to the upper side of the support frame, a conduit is fixedly connected between the storage box and the connecting pipe, and a one-way valve is installed outside the conduit.
[0007] Preferably, rivets are passed through between the arc strip and the single-layer lining tunnel, and the rivets are in several groups and arranged transversely.
[0008] Preferably, the airbag completely covers the gap.
[0009] Preferably, the end of the push rod abuts against the airbag.
[0010] Preferably, the cylinders are arranged in several groups in a ring shape.
[0011] Preferably, the end of the trachea is fixedly connected to a limiting plate to prevent it from slipping out of the airbag.
[0012] Preferably, a conveying device is fixedly connected to the interior of the storage box, an output pipe is fixedly connected to one side of the conveying device, and a terminal end of the output pipe extends out of the storage box.
[0013] The technical solution of the utility model has at least the following beneficial effects:
[0014] The utility model proposes a single-layer lining gas anti-seepage structure, which is convenient for sealing gas leakage points in the tunnel, and collects the gas through air bags, and then collects it through automatic exhaust, thus avoiding some dangerous situations caused by excessive gas in the tunnel. It is more convenient than the method of extracting gas from coal seams or rock formations using extraction technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 for Figure 1 A magnified view of middle;
[0017] Figure 3 It is a first side view of the utility model;
[0018] Figure 4 for Figure 3 Enlarged view of middle B;
[0019] Figure 5 It is a side sectional view of the first partial structure of the utility model;
[0020] Figure 6 It is a side sectional view of a second partial structure of the utility model;
[0021] Figure 7 It is a second side view of the utility model;
[0022] Figure 8 It is a side sectional view of a third partial structure of the utility model;
[0023] Icons: 1. Single-layer lined tunnel; 2. Curved bar; 3. Rivet; 4. Airbag; 5. Cylinder; 6. Push rod; 7. Air pipe; 8. Connecting pipe; 9. Support frame; 10. Storage box; 11. Conduit; 12. One-way valve; 13. Conveying device; 14. Output pipe; 15. Cavity; 16. Gap. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] See also Figure 1-8 The utility model proposes a single-layer lining gas anti-seepage structure, including a single-layer lining tunnel 1. The single-layer lining tunnels 1 are in several groups and are assembled with each other. A gap 16 is formed between two groups of single-layer lining tunnels 1. The single-layer lining tunnel 1 is fixedly connected with an arc strip 2 on the outside, and the arc strip 2 completely covers the gap 16. A cavity 15 is opened inside the arc strip 2. An air bag 4 is installed inside the arc strip 2. A cylinder 5 is fixedly connected to the outside of the arc strip 2. A push rod 6 is fixedly connected to one side of the cylinder 5. Air pipes 7 are installed on both sides of the cylinder 5. The end of the air pipe 7 extends into the inside of the air bag 4, and the air pipe 7 is slidably connected to the air bag 4. A connecting pipe 8 is fixedly connected to the outside of the air pipe 7. A support frame 9 is installed inside the single-layer lining tunnel 1. A storage box 10 is fixedly connected to the upper side of the support frame 9. A conduit 11 is fixedly connected between the storage box 10 and the connecting pipe 8. A one-way valve 12 is installed outside the conduit 11.
[0026] Rivets 3 are passed through between the arc strip 2 and the single-layer lining tunnel 1 , and the rivets 3 are in several groups and arranged transversely. Providing multiple groups of rivets 3 can improve the installation stability and air tightness of the arc strip 2 .
[0027] The airbag 4 completely covers the gap 16 , and when gas leaks, it mostly leaks through the gap 16 , and can be collected by the airbag 4 .
[0028] The end of the push rod 6 abuts against the airbag 4 .
[0029] The number of the cylinders 5 is several groups and they are arranged in a ring shape. Providing multiple groups of cylinders 5 can avoid insufficient gas discharge.
[0030] The end of the trachea 7 is fixedly connected with a limiting plate to prevent the trachea 7 from slipping out of the airbag 4 .
[0031] A conveying device 13 is fixedly connected to the interior of the storage box 10, an output pipe 14 is fixedly connected to one side of the conveying device 13, and the end of the output pipe 14 extends out of the storage box 10. When a large amount of gas mixture is stored in the storage box 10, the conveying device 13 can be operated to discharge the gas mixture through the output pipe 14.
[0032] The working principle of a single-layer lining gas anti-seepage structure based on the embodiment is that when the tunnel is built, there will be gaps 16 in the middle, and these areas are prone to gas leakage. Therefore, when this structure is used, the gaps 16 where gas is prone to leakage can be found first, and the arc strips 2 are installed in the single-layer lining tunnel 1 through rivets 3, and the gaps 16 are covered at the same time. In this way, the danger of gas remaining in the tunnel is avoided first, and secondly, the gaps 16 can be covered by the airbag 4. When the gas leaks, it can be collected by the airbag 4 through the gaps 16, and then the push rod 6 can be pushed by the cylinder 5 to push the airbag 4 inside the airbag 4. The gas mixture in the airbag 4 is squeezed to both sides. Due to the small gap 16, the gas mixture in the airbag 4 cannot be discharged through the gap 16 quickly. At this time, it can be discharged through the air pipes 7 on both sides of the cylinder 5, and then passed into the storage box 10 through the connecting pipe 8 and the conduit 11 for storage. The one-way valve 12 arranged outside the conduit 11 can ensure that only the gas mixture in the airbag 4 is passed into the storage box 10, and there will be no backflow. This can reduce or even eliminate the situation of gas leakage into the tunnel, avoid risks, and is more convenient than using extraction technology to extract gas from coal seams or rock formations.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A single-layer lining gas anti-seepage structure, characterized in that: The invention comprises a single-layer lining tunnel (1), wherein the single-layer lining tunnel (1) is in a plurality of groups and is assembled with each other, a gap (16) is formed between two groups of the single-layer lining tunnel (1), an arc-shaped strip (2) is fixedly connected to the outside of the single-layer lining tunnel (1), and the arc-shaped strip (2) completely covers the gap (16), a cavity (15) is provided inside the arc-shaped strip (2), an air bag (4) is installed inside the arc-shaped strip (2), a cylinder (5) is fixedly connected to the outside of the arc-shaped strip (2), and a push rod (16) is fixedly connected to one side of the cylinder (5). Rod (6), air pipes (7) are installed on both sides of the air cylinder (5), the ends of the air pipes (7) extend into the interior of the air bag (4), and the air pipes (7) are slidably connected to the air bag (4), the outside of the air pipe (7) is fixedly connected to a connecting pipe (8), a support frame (9) is installed inside the single-layer lining tunnel (1), a storage box (10) is fixedly connected to the upper side of the support frame (9), a conduit (11) is fixedly connected between the storage box (10) and the connecting pipe (8), and a one-way valve (12) is installed outside the conduit (11).
2. A single-layer lining gas anti-seepage structure according to claim 1, characterized in that: Rivets (3) are passed through between the arc strip (2) and the single-layer lining tunnel (1), and the rivets (3) are in a plurality of groups and arranged in a transverse manner.
3. The single-layer lining gas anti-seepage structure according to claim 1, characterized in that: The airbag (4) completely covers the gap (16).
4. The single-layer lining gas anti-seepage structure according to claim 1, characterized in that: The end of the push rod (6) is in contact with the air bag (4).
5. The single-layer lining gas anti-seepage structure according to claim 1, characterized in that: The cylinders (5) are provided in a plurality of groups and are arranged in a ring shape.
6. The single-layer lining gas anti-seepage structure according to claim 1, characterized in that: The end of the trachea (7) is fixedly connected to a limiting plate to prevent the trachea (7) from sliding out of the interior of the air bag (4).
7. The single-layer lining gas anti-seepage structure according to claim 1, characterized in that: A conveying device (13) is fixedly connected to the interior of the storage box (10), an output pipe (14) is fixedly connected to one side of the conveying device (13), and a terminal end of the output pipe (14) extends out of the storage box (10).