Tunnel gas rapid discharge method

Abstract

The present application belongs to the technical field of tunnel gas discharge, and particularly relates to a tunnel gas rapid discharge method, which uses advanced drilling to prove gas concentration, then uses negative pressure to draw the gas into a pipeline, then uses the pipeline to discharge the gas to a temporary gas extraction pump station underground, so that the temporary gas extraction pump station rapidly discharges and sends the gas; when the gas is discharged and sent, the discharged and sent gas is detected, the detected qualified gas is transported to a ground safety device again through the pipeline, so that the gas is processed and discharged again; at this time, the gas is discharged to a ground pump station, and after passing through the ground pump station, the gas is transported to a gas storage barrel for storage.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of tunnel gas discharge, and particularly relates to a tunnel gas rapid discharge method. BACKGROUND

[0002] When a tunnel is excavated, gas will be excavated, so the gas needs to be discharged in time to ensure the safety of workers.

[0003] A patent with the publication number CN102116171B discloses a tunnel gas rapid discharge method, and the technical scheme is as follows: the gas is rapidly discharged by means of improving the pressure of a gas-containing stratum, and is concentratedly treated by strengthening ventilation, so that obvious energy-saving effect is achieved, and the purpose of reducing ventilation cost is achieved; the method is applied to the construction of highway, railway and water conservancy tunnels, and can also be applied to other types of underground engineering.

[0004] The existing tunnel gas is extremely slow when being discharged due to the influence of the environment in the tunnel, and when a large amount of gas is encountered, it is difficult to discharge the gas rapidly, so that the gas discharge efficiency is low, and the working efficiency is greatly affected.

[0005] Therefore, the application provides a tunnel gas rapid discharge method. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical scheme adopted by the application to solve the technical problem is that the application discloses a tunnel gas rapid discharge method, and the method steps are as follows:

[0008] S1: the gas concentration is explored by using advanced drilling, and then the gas is pumped into a pipeline by negative pressure, and then the gas is discharged into a temporary gas pumping station in the well by the pipeline, so that the temporary gas pumping station rapidly discharges and sends the gas;

[0009] S2: when the gas is discharged and sent, the discharged and sent gas is detected, the qualified gas is transported to the safety device on the ground again through the pipeline, and the gas is processed and discharged again for the convenience of safety;

[0010] S3: the gas is discharged and sent to the ground pump station, and then the gas is transported to the gas storage barrel for storage after the ground pump station;

[0011] When working, the gas concentration is explored by using advanced drilling, and then the gas is pumped out by negative pressure, so that the gas is transported to the storage barrel by the underground gas pumping station, and the purpose of discharging the gas is achieved.

[0012] Preferably, the top of the pipeline is provided with an inverted "V"-shaped protective plate, the bottom end of the protective plate is fixedly connected with a bottom plate, the bottom of the bottom plate is provided with a receiving groove, the inside of the receiving groove is slidably connected with a sliding block, one side of the sliding block is fixedly connected with a first spring, the other end of the first spring is fixedly connected with the receiving groove, and one side of the sliding block is fixedly connected with an arc-shaped clamping plate; when the pipeline is installed, the inverted "V"-shaped protective plate is placed on the pipeline, and when the protective plate moves towards the pipeline, the protective plate moves towards the pipeline together with the bottom plate and the sliding block; at this time, the arc-shaped clamping plate touches the surface of the pipeline, and the clamping plate is opened, so that the clamping plate, the first spring and the sliding block move away from the pipeline, thereby increasing the distance between the two clamping plates, facilitating the clamping of the two clamping plates on the pipeline, and when the two clamping plates clamp the pipeline, the protective plate is above the pipeline; since the protective plate is inverted "V"-shaped, when the gravel falls on the protective plate, the gravel will roll down the two sides of the protective plate and roll away, thereby protecting the pipeline and preventing the accumulation of gravel.

[0013] Preferably, the two sides of the protective plate are fixedly connected with rubber buffer pads, the inside of the buffer pad is fixedly connected with a "V"-shaped spring, the top of the bottom plate is fixedly connected with a guide plate, and the top of the guide plate is rotatably connected with a guide wheel; when the gravel falls on the protective plate, it will first contact the buffer pad, so that the buffer pad and the internal spring play a buffering role, thereby avoiding the direct impact of the gravel on the protective plate, preventing the protective plate from being damaged, and at this time, the gravel will roll on the guide plate through the buffer pad, and the guide wheel on the guide plate plays a role in assisting the rolling of the gravel, so that the gravel is discharged and the accumulation of gravel is prevented.

[0014] Preferably, the two ends of the clamping plate are provided with placing grooves, and the inside of the placing groove is rotatably connected with a roller made of magnet; when the clamping plate contacts the surface of the pipeline, the roller in the placing groove at one end of the clamping plate will first contact the surface of the pipeline, so that the roller plays a role in opening the clamping plate and assisting the sliding plate, facilitating the movement of the clamping plate; since the roller is made of magnet and the pipeline is made of metal, when the roller stops moving, the roller and the surface of the pipeline are fixedly attached to each other, thereby further fixing the clamping plate.

[0015] Preferably, the side of the clamping plate away from the sliding block is provided with an arc-shaped groove, and the inside of the groove is fixedly connected with a brush; when the clamping plate starts to contact the surface of the pipeline, the brush in the arc-shaped groove will first clean the surface of the pipeline, thereby facilitating the mutual adhesion and fixation of the clamping plate and the surface of the pipeline.

[0016] Preferably, the inside of the accommodating groove is fixedly connected with a hollow elastic block, the bottom of the elastic block is fixedly connected with a gas guide pipe, the sliding block and the clamping plate are provided with a through hole penetrating through the sliding block and the clamping plate, and the gas guide pipe is fixedly connected with the through hole away from the elastic block.

[0017] Preferably, the inside of the through hole is fixedly connected with a connecting plate, one side of the connecting plate is provided with a rectangular groove penetrating through the connecting plate, the rectangular groove is rotationally connected with a baffle, one side of the baffle is fixedly connected with a second spring, and the other end of the second spring is fixedly connected with the rectangular groove.

[0018] Preferably, the inside of the rectangular groove is fixedly connected with a guide block, the guide block is inclined on both sides, and a circular hole is formed in one end of the guide block.

[0019] Preferably, the side, away from the clamping plate, of the sliding block is fixedly connected with an arc-shaped fixing plate, and one side of the fixing plate is fixedly connected with a pressing plate made of rubber.

[0020] Preferably, the bottom of the bottom plate is fixedly connected with a protection plate, and the protection plate is made of plastic.

[0021] The beneficial effects of the present application are as follows:

[0022] 1. The tunnel gas rapid discharge method provided by the present application is characterized by the following: a protective plate and a bottom plate are used, when the pipeline is installed, the inverted V-shaped protective plate is placed on the pipeline, when the protective plate moves towards the pipeline, the protective plate moves towards the pipeline together with the bottom plate and the sliding block, at this time, the arc-shaped clamping plate touches the surface of the pipeline, and then the clamping plate is pushed open, so that the clamping plate moves away from the pipeline together with the first spring and the sliding block, thereby increasing the distance between the two clamping plates, facilitating the clamping of the pipeline by the two clamping plates, and when the two clamping plates clamp the pipeline, the protective plate is above the pipeline, since the protective plate is inverted V-shaped, when the rubble falls on the protective plate, the rubble will roll along the two sides of the protective plate and roll away, thereby protecting the pipeline and preventing the accumulation of rubble.

[0023] 2. The tunnel gas rapid discharge method provided by the present application is characterized by the following: a buffer pad and a spring are used, when the rubble falls on the protective plate, it will first contact the buffer pad, so that the buffer pad and the internal spring play a buffering role, thereby avoiding the direct impact of the rubble on the protective plate, which can cause the protective plate to be damaged, at this time, the rubble will roll on the deflector plate along the buffer pad. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0025] The present application will be further described below in conjunction with the drawings.

[0026] Figure 1 is a flowchart of the method of the present application;

[0027] Figure 2 is a structural schematic diagram of the pipeline in the present application;

[0028] Figure 3 is a structural schematic diagram of the protective plate in the present application;

[0029] Figure 4 is Figure 3 is an enlarged view of A in

[0030] Figure 5 is a structural schematic diagram of the clamping plate in the present application;

[0031] Figure 6 is an enlarged view of B in Figure 3

[0032] Figure 7 ​Figure 2 is a structural schematic diagram of the bottom plate in Embodiment 2;

[0033] Figure: 1, pipeline; 2, guard plate; 3, bottom plate; 4, storage groove; 5, sliding block; 6, clamping plate; 7, first spring; 8, buffer pad; 9, spring piece; 10, deflector; 11, guide wheel; 12, roller; 13, groove; 14, brush; 15, elastic block; 16, air duct; 17, through hole; 18, connecting plate; 19, rectangular groove; 20, baffle; 21, second spring; 22, guide block; 23, round hole; 24, fixed plate; 25, pressing plate; 26, protection plate; 27, placing groove. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application will be further described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0035] Please refer to Figure 1 The tunnel gas rapid discharge method described in the embodiments of the present application has the following steps:

[0036] S1: Use the advanced drilling to explore the gas concentration, then use negative pressure to pump the gas into the pipeline 1, and then use the pipeline 1 to discharge the gas to the temporary gas pumping station in the well, so that the temporary gas pumping station can quickly discharge and send the gas;

[0037] S2: When discharging and sending the gas, the gas is detected, and the qualified gas is transported to the safety device on the ground through the pipeline 1 again, so as to facilitate the processing and re-discharge of the gas;

[0038] S3: At this time, the gas is discharged to the ground pump station, and after passing through the ground pump station, the gas is transported to the gas storage barrel for storage;

[0039] When working, the advanced drilling is used to explore the gas concentration, and then the gas is pumped out by negative pressure, so that the gas is transported to the storage barrel by the underground gas pumping station, thereby achieving the purpose of discharging the gas.

[0040] Embodiment 1:

[0041] As Figures 2-6As shown, the top of the pipeline 1 is provided with an inverted "V"-shaped protective plate 2, the bottom end of the protective plate 2 is fixedly connected with a bottom plate 3, the bottom of the bottom plate 3 is provided with a receiving groove 4, the inside of the receiving groove 4 is slidably connected with a sliding block 5, one side of the sliding block 5 is fixedly connected with a first spring 7, the other end of the first spring 7 is fixedly connected with the receiving groove 4, and one side of the sliding block 5 is fixedly connected with an arc-shaped clamping plate 6; when the pipeline 1 is installed, the inverted "V"-shaped protective plate 2 is placed on the pipeline 1, when the protective plate 2 moves towards the pipeline 1, the protective plate 2 moves towards the pipeline 1 together with the bottom plate 3 and the sliding block, at this time, the arc-shaped clamping plate 6 touches the surface of the pipeline 1, and then the clamping plate 6 is opened, so that the clamping plate 6 moves away from the pipeline 1 together with the first spring 7 and the sliding block, thereby increasing the distance between the two clamping plates 6, facilitating the clamping of the pipeline 1 by the two clamping plates 6, and when the two clamping plates 6 clamp the pipeline 1, the protective plate 2 is above the pipeline 1, since the protective plate 2 is inverted "V"-shaped, when the gravel falls on the protective plate 2, the gravel will roll along the two sides of the protective plate 2 and roll away, thereby protecting the pipeline 1 and preventing the accumulation of gravel.

[0042] The two sides of the protective plate 2 are fixedly connected with a rubber buffer pad 8, the inside of the buffer pad 8 is fixedly connected with a "V"-shaped spring piece 9, the top of the bottom plate 3 is fixedly connected with a flow guide plate 10, and the top of the flow guide plate 10 is rotatably connected with a guide wheel 11; when the gravel falls on the protective plate 2, it will first contact the buffer pad 8, so that the buffer pad 8 and the inside spring piece 9 play a buffering role, thereby avoiding the direct impact of the gravel on the protective plate 2, preventing the protective plate 2 from being damaged, at this time, the gravel will roll along the buffer pad 8 to the flow guide plate 10, and the guide wheel 11 on the flow guide plate 10 plays a role in assisting the rolling of the gravel, thereby preventing the accumulation of gravel.

[0043] The two ends of the clamping plate 6 are provided with a placing groove 27, and the inside of the placing groove 27 is rotatably connected with a roller 12 made of magnet; when the clamping plate 6 contacts the surface of the pipeline 1, the roller 12 in the placing groove 27 at one end of the clamping plate 6 will first contact the surface of the pipeline 1, so that the roller 12 plays a role in opening the clamping plate 6 and assisting the sliding plate, facilitating the movement of the clamping plate 6, since the roller 12 is made of magnet and the pipeline 1 is made of metal, when the roller 12 stops moving, the roller 12 and the surface of the pipeline 1 are mutually adsorbed and fixed, thereby further fixing the clamping plate 6.

[0044] The side of the clamping plate 6 away from the sliding block 5 is provided with an arc-shaped groove 13, and the inside of the groove 13 is fixedly connected with a brush 14; when the clamping plate 6 starts to contact the surface of the pipeline 1, the brush 14 in the arc-shaped groove 13 will first clean the surface of the pipeline 1, thereby facilitating the mutual adhesion and fixation of the clamping plate 6 and the surface of the pipeline 1.

[0045] The inside of the accommodating groove 4 is fixedly connected with a hollow elastic block 15, the bottom of the elastic block 15 is fixedly connected with a gas guide pipe 16, one side of the sliding block 5 and the clamping plate 6 is provided with a through hole 17 penetrating through itself, and the end of the gas guide pipe 16 away from the elastic block 15 is fixedly connected with the through hole 17; when the sliding block 5 slides away from the elastic block 15, the sliding block 5 will extrude the elastic block 15, so that the gas in the elastic block 15 is discharged into the through hole 17 through the gas guide pipe 16, and then is blown out through the through hole 17, and further is blown onto the surface of the pipeline 1, so as to further clean the pipeline 1.

[0046] The inside of the through hole 17 is fixedly connected with a connecting plate 18, one side of the connecting plate 18 is provided with a rectangular groove 19 penetrating through itself, the inside of the rectangular groove 19 is rotatably connected with a baffle 20, one side of the baffle 20 is fixedly connected with a second spring 21, and the other end of the second spring 21 is fixedly connected with the rectangular groove 19; when the through hole 17 starts to blow gas, the baffle 20 in the rectangular groove 19 is blown up through the rectangular groove 19 of the connecting plate 18, so that the baffle 20 rotates, and then the rectangular groove 19 is opened, so that the gas is conveniently blown out, when the gas is no longer blown out in the rectangular groove 19, the second spring 21 in the rectangular groove 19 restores the elastic force, and then rotates the baffle 20 to reset, so that the baffle 20 closes the rectangular groove 19, so as to prevent the dust in the tunnel from entering the rectangular groove 19 through the through hole 17, thereby causing the rectangular groove 19 to be blocked, so that the gas cannot be blown out through the rectangular groove 19.

[0047] The inside of the rectangular groove 19 is fixedly connected with a guide block 22, the two sides of the guide block 22 are inclined, and one end of the guide block 22 is provided with a circular hole 23; when the gas passes through the rectangular groove 19, the gas is blown to the two sides under the influence of the guide block 22, and then the gas is blown upward and downward, so as to change the direction of the gas blowing, so that the pipeline 1 surface can be more widely cleaned by blowing gas, and the gas in the rectangular groove 19 is also discharged through the circular hole 23.

[0048] One side of the sliding block 5 away from the clamping plate 6 is fixedly connected with an arc-shaped fixed plate 24, and one side of the fixed plate 24 is fixedly connected with a rubber pressure plate 25; when the sliding block 5 extrudes the elastic block 15, since only the bottom of the bottom plate 3 is open, the elastic block 15 will be deformed to the bottom plate 3 when it is extruded, at this time the fixed plate 24 on one side of the sliding block 5 will hold the deformed elastic block 15, the fixed plate 24 moves with the sliding block 5, and the pressure plate 25 is used to extrude and press the elastic block 15 from all directions, so that the elastic block 15 can extrude the gas more quickly.

[0049] Example two:

[0050] As Figure 7 shown, comparative example one, wherein another embodiment of the present application is:

[0051] The bottom of the bottom plate 3 is fixedly connected with a protection plate 26, and the protection plate 26 is made of plastic material; during operation, the protection plate 26 protects the elastic block 15 from being scratched by gravel, and the protection plate 26 made of plastic material can be deformed to better protect the elastic block 15.

[0052] Working principle: when the pipeline 1 is installed, the inverted "V" shaped guard plate 2 is placed on the pipeline 1, when the guard plate 2 moves to the pipeline 1, the guard plate 2 moves to the pipeline 1 with the bottom plate 3 and the slider, at this time the arc clamping plate 6 will touch the surface of the pipeline 1, and then the clamping plate 6 will be opened, so that the clamping plate 6 moves away from the pipeline 1 with the first spring 7 and the sliding block 5, so as to increase the distance between the two clamping plates 6, so that the two clamping plates 6 clamp the pipeline 1, when the two clamping plates 6 clamp the pipeline 1, the guard plate 2 is above the pipeline 1, because the guard plate 2 is inverted "V" shape, when the gravel falls on the guard plate 2, the gravel will roll along the two sides of the guard plate 2 and roll away, so as to protect the pipeline 1 and prevent the gravel from accumulating, when the gravel falls on the guard plate 2, it will first contact the buffer pad 8, so that the buffer pad 8 and the internal spring 9 play the role of buffering, so as to avoid the direct impact of the gravel on the guard plate 2, which will cause the damage of the guard plate 2, at this time the gravel will roll along the buffer pad 8 to the guide plate 10, the guide wheel 11 on the guide plate 10 plays the role of auxiliary rolling, which will remove the gravel and prevent the gravel from accumulating, when the clamping plate 6 contacts the surface of the pipeline 1, the roller 12 placed in the slot 27 at one end of the clamping plate 6 will first contact the surface of the pipeline 1, so that the roller 12 plays the role of opening the clamping plate 6 and assisting the sliding plate, which is convenient for the movement of the clamping plate 6, because the roller 12 is made of magnet material and the pipeline 1 is made of metal material, when the roller 12 stops moving, the roller 12 and the surface of the pipeline 1 are adsorbed and fixed, which further fixes the clamping plate 6, when the clamping plate 6 begins to contact the surface of the pipeline 1, the brush 14 in the arc groove 13 will clean the surface of the pipeline 1, so as to facilitate the mutual adhesion of the clamping plate 6 and the surface of the pipeline 1, when the sliding block 5 slides away from the elastic block 15, the sliding block 5 will press the elastic block 15, so that the gas in the elastic block 15 is discharged through the air guide pipe 16 into the through hole 17, and then blown out through the through hole 17, which plays the role of further blowing and cleaning, so as to avoid the excessive dust adhered to the surface of the pipeline 1 in the tunnel, which will affect the clamping effect of the clamping arm, when the through hole 17 starts to blow, it will pass through the rectangular slot 19 of the connecting plate 18, blow the baffle 20 in the rectangular slot 19, make the baffle 20 rotate, and then open the rectangular slot 19, so as to facilitate the blowing of the gas, when the through hole 17 stops blowing, the second spring 21 in the rectangular slot 19 restores the elastic force, so as to rotate the baffle 20 back to its original position, so that the baffle 20 closes the rectangular slot 19, so as to prevent the dust in the tunnel from entering the rectangular slot 19 through the through hole 17, which will cause the blockage of the rectangular slot 19 and prevent the gas from blowing out through the rectangular slot 19, when the gas passes through the rectangular slot 19, it will be affected by the guide block 22 and blow to both sides, so as to change the direction of the gas blowing, which can blow the gas to a larger area of the surface of the pipeline 1, and the gas in the rectangular slot 19 will also be discharged through the circular hole 23.When the sliding block 5 extrudes the elastic block 15, since the bottom plate 3 is only open at the bottom, when the elastic block 15 is extruded, the deformation of the elastic block 15 is generated to the bottom plate 3, at this time, the fixed plate 24 on one side of the sliding block 5 will hold the deformed elastic block 15, the fixed plate 24 moves with the sliding block 5, and uses the pressing plate 25 to extrude, and the elastic block 15 is extruded in all directions, so that the elastic block 15 can extrude the gas more quickly.

[0053] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A method for rapid gas emission in tunnels, characterized in that: The steps of this method are as follows: S1: Use advanced drilling to determine the gas concentration, then pump it into pipeline (1) through negative pressure, and then discharge the gas into the underground temporary gas extraction pump station through pipeline (1) so that the temporary gas extraction pump station can quickly discharge the gas. S2: When the gas is being discharged, the discharged gas will be tested, and the qualified gas will be transported again to the ground safety device through the pipeline (1) for safety. This process of processing the gas and discharging it again is convenient and safe. S3: At this point, the gas is pumped to the ground pumping station, and then transported to the gas storage tank for storage. The top of the pipe (1) is provided with an inverted "V" shaped protective plate (2), and the bottom end of the protective plate (2) is fixedly connected to a base plate (3). The bottom of the base plate (3) is provided with a storage groove (4). A sliding block (5) is slidably connected inside the storage groove (4). A first spring (7) is fixedly connected to one side of the sliding block (5). The other end of the first spring (7) is fixedly connected to the storage groove (4). An arc-shaped clamp (6) is fixedly connected to one side of the sliding block (5). A hollow elastic block (15) is fixedly connected inside the storage slot (4). An air guide pipe (16) is fixedly connected to the bottom of the elastic block (15). A through hole (17) is opened on one side of the sliding block (5) and the clamping plate (6). The end of the air guide pipe (16) away from the elastic block (15) is fixedly connected to the through hole (17). A connecting plate (18) is fixedly connected inside the through hole (17). A rectangular groove (19) is provided on one side of the connecting plate (18). A baffle (20) is rotatably connected inside the rectangular groove (19). A second spring (21) is fixedly connected on one side of the baffle (20). The other end of the second spring (21) is fixedly connected to the rectangular groove (19). A guide block (22) is fixedly connected inside the rectangular groove (19). The two sides of the guide block (22) are inclined, and a round hole (23) is opened at one end of the guide block (22). An arc-shaped fixing plate (24) is fixedly connected to the side of the sliding block (5) away from the clamping plate (6), and a rubber pressure plate (25) is fixedly connected to one side of the fixing plate (24).

2. The method for rapid ventilation of tunnel gas according to claim 1, characterized in that: Rubber buffer pads (8) are fixedly connected to both sides of the protective plate (2). A "V"-shaped spring piece (9) is fixedly connected inside the buffer pad (8). A guide plate (10) is fixedly connected to the top of the base plate (3). A guide wheel (11) is rotatably connected to the top of the guide plate (10).

3. The method for rapid ventilation of tunnel gas according to claim 2, characterized in that: Both ends of the clamp (6) are provided with placement slots (27), and the interior of the placement slots (27) is rotatably connected to a roller (12) made of magnet.

4. The method for rapid ventilation of tunnel gas according to claim 3, characterized in that: The clamping plate (6) has an arc-shaped groove (13) on the side away from the sliding block (5), and a brush (14) is fixedly connected inside the groove (13).

5. The method for rapid ventilation of tunnel gas according to claim 4, characterized in that: The bottom of the base plate (3) is fixedly connected to a protective plate (26), which is made of plastic.

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