A tunnel construction reinforcement device

Abstract

The present invention belongs to the technical field of tunnel construction, and specifically relates to a tunnel construction reinforcement device, which includes an input pipe. One end of the input pipe is connected to a high-pressure grouting device, and a connector is fixed at the other end of the input pipe. A feed pipe is installed at the end of the connector away from the input pipe. A main reinforcement pipe is fixed at the end of the feed pipe away from the connector. Secondary reinforcement pipes are arranged on both sides of the main reinforcement pipe. A plurality of discharge holes are formed on both sides of the main reinforcement pipe, and a plurality of discharge holes are also formed on both sides of the secondary reinforcement pipe; by grouting the gaps through the main reinforcement pipe and the secondary reinforcement pipe, grouting at multiple positions can be realized, reducing the time consumed by grouting. After use, the main reinforcement pipe and the secondary reinforcement pipe remain between the segment and the tunnel inner wall. At this time, the main reinforcement pipe and the secondary reinforcement pipe can play a role in secondary reinforcement. The connection between the main reinforcement pipe and the secondary reinforcement pipe through the connecting pipe can form an integral structure between them, making it more stable during use.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel construction, and specifically relates to a tunnel construction reinforcement device. Background Art

[0002] Tunnels are architectural facilities that are often seen and used in daily life. Due to different uses, the construction locations of tunnels will also vary. Tunnels are constructed inside mountains in locations with more mountains and can be used for road driving. Subway tunnels are excavated underground. During the excavation of tunnels, it is necessary to reinforce the inner walls of the tunnels. Shield segments are used to fix on the inner walls of the tunnels, and at this time, grouting reinforcement is required between the segments and the inner walls of the tunnels.

[0003] A Chinese patent with the publication number CN220687352U discloses a tunnel lining reinforcement construction equipment, including a tunnel drilling vehicle and a tunnel grouting vehicle. During operation, the tunnel drilling vehicle moves along a preset path in the tunnel to the target reinforcement position, and the tunnel drilling vehicle performs drilling operations on the tunnel at the target reinforcement position; the tunnel grouting vehicle moves along a preset path in the tunnel to the target reinforcement position, and the tunnel grouting vehicle performs grouting operations on the holes drilled by the tunnel drilling vehicle at the target reinforcement position, effectively improving the operation efficiency.

[0004] In the above technical solution during use, it is necessary to inject grout into the holes through the grouting vehicle. After grouting, the segments need to be installed on the inner wall of the tunnel. After installation, there will be gaps between the segments and the inner wall of the tunnel. At this time, it is necessary to grout the gaps. However, during the grouting process, the grout in the gaps is prone to uneven grouting, and the grouting speed is also relatively slow, affecting the use efficiency.

[0005] Therefore, the present invention provides a tunnel construction reinforcement device. Summary of the Invention

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

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A tunnel construction reinforcement device of the present invention includes an input pipe. One end of the input pipe is connected to a high-pressure grouting device, and a connection head is fixed to the other end of the input pipe. A feed pipe is installed at the end of the connection head away from the input pipe. A main reinforcement pipe is fixed to the end of the feed pipe away from the connection head. Secondary reinforcement pipes are provided on both sides of the main reinforcement pipe. A plurality of discharge holes are provided on both sides of the main reinforcement pipe, and a plurality of discharge holes are also provided on both sides of the secondary reinforcement pipes. A connection structure is provided between the main reinforcement pipe and the secondary reinforcement pipes, and the main reinforcement pipe and the secondary reinforcement pipes are connected and communicated through the connection structure. A plurality of limit protrusions are fixed to the tops of the main reinforcement pipe and the secondary reinforcement pipes.

[0008] Preferably, the connecting structure includes a connecting pipe disposed between the main reinforcing pipe and the auxiliary reinforcing pipe, and a connecting pipe is also disposed between adjacent auxiliary reinforcing pipes on both sides. Connecting sleeves are fixed at both ends of the connecting pipe. The connecting sleeve at one end is sleeved outside the main reinforcing pipe, and the connecting sleeve at the other end is sleeved outside the auxiliary reinforcing pipe. A second limiting groove is formed inside the connecting sleeve. Tooth rings are fixed outside both the main reinforcing pipe and the auxiliary reinforcing pipe, and the tooth rings are rotatably connected inside the second limiting groove. Liquid guiding ports are formed on one side of the main reinforcing pipe and the auxiliary reinforcing pipe close to the connecting pipe.

[0009] Preferably, an activity cavity is formed on one side of the second limiting groove close to the connecting pipe. A guiding plate is fixed inside the activity cavity. A telescopic column penetrates through the guiding plate. A clamping plate is fixed at one end of the telescopic column away from the guiding plate. A second spring is sleeved outside the telescopic column. One end of the second spring is fixedly connected to the telescopic column, and the other end of the second spring is fixedly connected to the guiding plate. The clamping plate can be engaged with the tooth ring.

[0010] Preferably, a rotating plate is rotatably connected inside the connecting pipe. A rotating block is fixed on one side of the rotating plate close to the clamping plate. Pulling ropes are fixed on both sides of one end of the rotating block away from the rotating plate. A limiting plate is fixed at the top of the telescopic column. A clamping block is arranged above the limiting plate. A moving frame is arranged at one end of the limiting plate away from the clamping plate, and the moving frame is arranged below the clamping block.

[0011] Preferably, a lifting frame is fixed at the top of the clamping block. A guiding shell is arranged above the lifting frame. The guiding shell is fixed at the top inside the activity cavity. A third spring is fixed at the top of the lifting frame, and the top of the third spring is fixedly connected to the inner wall of the activity cavity. The lifting frame can be engaged with the top of the guiding plate.

[0012] Preferably, a net plate is fixed inside the feed pipe, and a plurality of filter holes are equidistantly formed inside the net plate.

[0013] Preferably, a rotating shaft is rotatably connected inside the net plate. A blade is fixed at one end of the rotating shaft close to the main reinforcing pipe. A steering arm is fixed at the other end of the rotating shaft away from the blade. A scraping plate is fixed on one side of the steering arm.

[0014] Preferably, a material ejecting frame is arranged on one side of the steering arm close to the net plate. A first spring is fixed on one side of the material ejecting frame close to the steering arm, and the other end of the first spring is fixedly connected to the steering arm. A guiding rod penetrates through the first spring. One end of the guiding rod penetrates into the steering arm, and the other end of the guiding rod is fixedly connected to the material ejecting frame. A plurality of spheres are fixed on one side of the material ejecting frame close to the net plate.

[0015] Preferably, a support frame is fixedly arranged inside the docking head. One end of the support frame far away from the mesh plate is rotatably connected with a plurality of skeletons. One side of the skeleton close to the support frame is fixedly provided with a non-woven fabric. The outer diameter of the non-woven fabric is larger than the inner diameter of the docking head. A plurality of elastic pieces are fixedly arranged outside the support frame, and the other ends of the elastic pieces are tightly attached to the contact surface between the non-woven fabric and the skeleton. Inside the connecting head, a docking sleeve is fixedly arranged through a fixing plate, and the docking sleeve can be sleeved on the end of the support frame close to the skeleton.

[0016] Preferably, a plurality of first limiting grooves are formed inside the docking head, and one end of the skeleton far away from the support frame can slide into the inside of the first limiting grooves.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. For the tunnel construction reinforcement device described in the present invention, by injecting slurry into the gap through the main reinforcement pipe and the auxiliary reinforcement pipe, multi-position slurry injection can be realized, reducing the time consumed for slurry injection. After use, the main reinforcement pipe and the auxiliary reinforcement pipe remain between the segment and the tunnel inner wall. At this time, the main reinforcement pipe and the auxiliary reinforcement pipe can play the role of secondary reinforcement. Through the connection of the main reinforcement pipe and the auxiliary reinforcement pipe by the connecting pipe, an integral structure can be formed between them, making it more stable during use.

[0019] 2. For the tunnel construction reinforcement device described in the present invention, the mesh plate can filter the feed. At the same time, the scraper and the elastic material rack can prevent the filter holes of the mesh plate from being blocked. The non-woven fabric can seal the inside of the docking head, preventing the slurry from leaking to the outside from the docking head. At the same time, when solidifying, the water in the slurry can be exuded to the outside through the non-woven fabric. Description of the Drawings

[0020] The present invention will be further described below with reference to the drawings.

[0021] Figure 1 is the three-dimensional view of the present invention;

[0022] Figure 2 is the structural schematic diagram of the main reinforcement pipe in the present invention;

[0023] Figure 3 is the internal structural schematic diagram of the connecting pipe in the present invention;

[0024] Figure 4 is the structural schematic diagram of the clamping plate in the present invention;

[0025] Figure 5 is the structural schematic diagram of the lifting frame in the present invention;

[0026] Figure 6 is the internal structural schematic diagram of the feed pipe in the present invention;

[0027] Figure 7 is the structural schematic diagram of the mesh plate in the present invention;

[0028] Figure 8 It is a schematic diagram of the internal structure of the docking head in the present invention;

[0029] Figure 9 It is a schematic diagram of the skeleton structure of the present invention.

[0030] In the figure: 1. Input pipe; 11. Connector; 111. Docking sleeve; 2. Main reinforcement pipe; 21. Sub-reinforcement pipe; 22. Feed pipe; 221. Mesh plate; 222. Blade; 223. Steering arm; 224. Scraper; 225. Elastic material rack; 226. First spring; 23. Tooth ring; 24. Fixed convex block; 25. Liquid guide port; 26. Docking head; 261. First limit groove; 262. Non-woven fabric; 263. Support frame; 264. Elastic sheet; 265. Skeleton; 3. Connecting pipe; 31. Rotating plate; 32. Rotating block; 321. Pulling rope; 322. Moving frame; 33. Connecting sleeve; 331. Second limit groove; 332. Activity cavity; 34. Clamping plate; 341. Limit plate; 342. Telescopic column; 343. Second spring; 344. Guide plate; 35. Lifting frame; 351. Third spring; 352. Guide shell; 353. Clamping block. Detailed implementation manners

[0031] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0032] As Figures 1 to 2 shown, a tunnel construction reinforcement device described in an embodiment of the present invention includes an input pipe 1. One end of the input pipe 1 is communicated with a high-pressure grouting device, and a connector 11 is fixed to the other end of the input pipe 1. A feed pipe 22 is installed at the end of the connector 11 away from the input pipe 1. A main reinforcement pipe 2 is fixed to the end of the feed pipe 22 away from the connector 11. Sub-reinforcement pipes 21 are arranged on both sides of the main reinforcement pipe 2. A plurality of discharge holes are opened on both sides of the main reinforcement pipe 2, and a plurality of discharge holes are also opened on both sides of the sub-reinforcement pipe 21. A connecting structure is arranged between the main reinforcement pipe 2 and the sub-reinforcement pipe 21, and the main reinforcement pipe 2 and the sub-reinforcement pipe 21 are communicated with each other through the connecting structure. A plurality of limit convex blocks 24 are fixed to the tops of the main reinforcement pipe 2 and the sub-reinforcement pipe 21;

[0033] When constructing a tunnel, it is necessary to install shield segments on the inner wall of the tunnel. However, there will be a gap between the segment and the inner wall after installation, and the gap will affect the stability of the segment during use. Therefore, it is necessary to fill the gap by grouting. When filling, the high-pressure grouting equipment is connected to the input pipe 1, and then grout is injected into the gap through the input pipe 1. However, the process of filling the gap completely takes a long time and consumes a lot of time. Therefore, when installing the segment, the main reinforcement pipe 2 and the auxiliary reinforcement pipe 21 are first embedded in the inner wall of the tunnel, and then the segment is installed. After installation, the connector 11 and the feed pipe 22 are docked, and then the external temporary fixing device is used to fix the connector 11 and the feed pipe 22. Subsequently, the high-pressure grouting equipment injects the slurry into the main reinforcement pipe 2 through the input pipe 1. At this time, the main reinforcement pipe 2 introduces the slurry into the auxiliary reinforcement pipe 21 through the connection structure. During the continuous conveying process, the main reinforcement pipe 2 and the auxiliary reinforcement pipe 21 grout to the outside through the discharge holes on both sides. At this time, multiple discharge holes can grout simultaneously, which can achieve rapid grouting and save construction time. After grouting is completed, the connector 11 is separated from the feed pipe 22. On-site, the corresponding number of main reinforcement pipes 2 and auxiliary reinforcement pipes 21 are selected according to the number of segments for embedding. After construction, the slurry outside the main reinforcement pipe 2 and the auxiliary reinforcement pipe 21 solidifies. At this time, the main reinforcement pipe 2 and the auxiliary reinforcement pipe 21 can further enhance the strength between the segment and the inner wall of the tunnel. The limit bump 24 can increase the friction between the main reinforcement pipe 2 and the auxiliary reinforcement pipe 21 and the inner wall of the tunnel, preventing sliding during the grouting process. The main reinforcement pipe 2 and the auxiliary reinforcement pipe 21 of this reinforcement device are disposable products supporting tunnel construction. After grouting, the main reinforcement pipe 2 is separated from the high-pressure grouting equipment, and the main reinforcement pipe 2 and the auxiliary reinforcement pipe 21 are left between the segment and the inner wall of the tunnel, which can facilitate grouting and play a role in reinforcement itself.

[0034] As Figures 1 to 3 shown, the connection structure includes a connecting pipe 3 arranged between the main reinforcement pipe 2 and the auxiliary reinforcement pipe 21. A connecting pipe 3 is also arranged between adjacent auxiliary reinforcement pipes 21 on both sides. Connecting sleeves 33 are fixed at both ends of the connecting pipe 3. One of the connecting sleeves 33 is sleeved outside the main reinforcement pipe 2, and the other connecting sleeve 33 is sleeved outside the auxiliary reinforcement pipe 21. A second limiting groove 331 is formed inside the connecting sleeve 33. Tooth rings 23 are fixed on the outside of the main reinforcement pipe 2 and the auxiliary reinforcement pipe 21. The tooth rings 23 are rotatably connected inside the second limiting groove 331. Liquid guiding ports 25 are formed on one side of the main reinforcement pipe 2 and the auxiliary reinforcement pipe 21 close to the connecting pipe 3;

[0035] When the main reinforcement pipe 2 and the secondary reinforcement pipe 21 are embedded, segments are selected according to different tunnel diameters. During the use of the main reinforcement pipe 2 and the secondary reinforcement pipe 21, the angle between them needs to be adjusted according to the segments of different diameters. Therefore, during embedding, the secondary reinforcement pipe 21 is rotated according to the diameter of the segment. At this time, an angle is generated between the main reinforcement pipe 2 and the secondary reinforcement pipe 21. Then, the main reinforcement pipe 2 and the secondary reinforcement pipe 21 can fit the segment better. The main reinforcement pipe 2 and the secondary reinforcement pipe 21 are connected by a connecting pipe 3. The connecting sleeve 33 can be sleeved outside the main reinforcement pipe 2 and the secondary reinforcement pipe 21, which is convenient for rotating and adjusting the angle of the secondary reinforcement pipe 21. During the grouting process, the main reinforcement pipe 2 and the secondary reinforcement pipe 21 will output slurry through the liquid guide port 25 and transmit it through the connecting pipe 3.

[0036] As Figures 3 to 5 shown, a movable cavity 332 is opened on one side of the second limiting groove 331 close to the connecting pipe 3. A guide plate 344 is fixed inside the movable cavity 332. A telescopic column 342 penetrates through the inside of the guide plate 344. A clamping plate 34 is fixed at one end of the telescopic column 342 away from the guide plate 344. A second spring 343 is sleeved outside the telescopic column 342. One end of the second spring 343 is fixedly connected to the telescopic column 342, and the other end of the second spring 343 is fixedly connected to the guide plate 344. The clamping plate 34 can be engaged with the toothed ring 23;

[0037] During the use of the main reinforcement pipe 2 and the secondary reinforcement pipe 21, they will be fixed between the segment and the inner wall of the tunnel. However, when the angle of the secondary reinforcement pipe 21 is adjusted, it will rotate, which will cause the structure between the main reinforcement pipe 2 and the secondary reinforcement pipe 21 to be unstable. In order to make a stable structure between the main reinforcement pipe 2 and the secondary reinforcement pipe 21, at this time, the elastic force of the second spring 343 can push the telescopic column 342. The telescopic column 342 pushes the clamping plate 34 to extend out of the inside of the movable cavity 332, so that the clamping plate 34 can be engaged with the toothed ring 23. At this time, the stability of the fixation between the main reinforcement pipe 2, the secondary reinforcement pipe 21 and the connecting pipe 3 during use is higher.

[0038] As Figures 3 to 5 shown, a rotating plate 31 is rotatably connected inside the connecting pipe 3. A rotating block 32 is fixed on one side of the rotating plate 31 close to the clamping plate 34. Pulling ropes 321 are fixed on both sides of one end of the rotating block 32 away from the rotating plate 31. A limiting plate 341 is fixed at the top end of the telescopic column 342. A clamping block 353 is arranged above the limiting plate 341. A moving frame 322 is arranged at one end of the limiting plate 341 away from the clamping plate 34. The moving frame 322 is arranged below the clamping block 353;

[0039] During the grouting process, slurry will enter the interior of the connecting pipe 3. Since the high-pressure grouting equipment inputs high-pressure slurry, the high-pressure slurry will enter the interior of the connecting pipe 3 and push the rotating plate 31 to rotate. When the rotating plate 31 rotates, it drives the rotating block 32 to rotate. At this time, the rotating block 32 pulls the pull rope 321, and the pull rope 321 pulls the moving frame 322. At this time, the inclined block at the top of the moving frame 322 will push up the clamping block 353. After the clamping block 353 is pushed up, it separates from the inclined block of the limiting plate 341. At this time, the limiting plate 341 loses the braking force, and the elastic force of the second spring 343 pushes the telescopic column 342 forward to push the clamping plate 34. After the clamping plate 34 is pushed, it engages with the toothed ring 23. At this time, the toothed ring 23 can be fixed, and automatic fixation can be realized during the grouting process, which is more convenient to use.

[0040] As Figures 3 to 5 shown, a lifting frame 35 is fixed to the top end of the clamping block 353. Above the lifting frame 35, there is a guiding shell 352. The guiding shell 352 is fixed to the top end inside the movable cavity 332. A third spring 351 is fixed to the top end of the lifting frame 35. The top end of the third spring 351 is fixedly connected to the inner wall of the movable cavity 332. The lifting frame 35 can be clamped to the top end of the guiding plate 344.

[0041] After the clamping block 353 is lifted, the limiting plate 341 will be driven forward by the telescopic column 342. At this time, the limiting plate 341 moves away from below the clamping block 353. Then, the elastic force of the third spring 351 will push the lifting frame 35 to extend out of the guiding shell 352. At the same time, when the clamping plate 34 engages with the toothed ring 23, the end of the telescopic column 342 close to the guiding plate 344 is flush with the guiding plate 344. At this time, the lifting frame 35 moves downward so that it can be clamped outside the guiding plate 344. At this time, the side of the lifting frame 35 away from the clamping block 353 will block the position where the telescopic column 342 is flush with the guiding plate 344. At this time, the telescopic column 342 can be locked, which can prevent the toothed ring 23 from driving the clamping plate 34 to retreat when rotating, resulting in structural instability.

[0042] As Figures 1 to 7 shown, a mesh plate 221 is fixed inside the feed pipe 22, and a plurality of filter holes are equidistantly arranged inside the mesh plate 221.

[0043] When the input pipe 1 inputs slurry into the interior of the main reinforcement pipe 2, large particles may exist in the slurry. Entering the interior of the main reinforcement pipe 2 and the auxiliary reinforcement pipe 21 may cause blockage of the discharge holes. At this time, the discharge holes cannot discharge materials normally. Therefore, when the feed pipe 22 feeds materials, it will be filtered through the mesh plate 221. The mesh plate 221 can filter out particles with too large an outer diameter through the internal filter holes, preventing large particles from blocking the discharge holes.

[0044] As Figures 1 to 7As shown, a rotating shaft is rotatably connected inside the wire mesh plate 221. A blade 222 is fixed to one end of the rotating shaft close to the main reinforcing pipe 2, and a steering arm 223 is fixed to the other end of the rotating shaft away from the blade 222. A scraping plate 224 is fixed to one side of the steering arm 223;

[0045] During the filtering process, large particles may block outside the filter holes of the wire mesh plate 221, resulting in no feeding or a small feeding flow inside the feeding pipe 22. Therefore, when the slurry flows inside the feeding pipe 22, it will drive the blade 222 to rotate. At this time, the blade 222 drives the steering arm 223 to rotate, and the steering arm 223 drives the scraping plate 224 to scrape the surface of the wire mesh plate 221. The steering arm 223 can scrape the large particles staying on the surface of the wire mesh plate 221 to make them move, preventing the large particles from blocking the filter holes.

[0046] As Figures 1 to 7 shown, a material ejecting rack 225 is arranged on one side of the steering arm 223 close to the wire mesh plate 221. A first spring 226 is fixed to one side of the material ejecting rack 225 close to the steering arm 223. The other end of the first spring 226 is fixedly connected to the steering arm 223. A guide rod penetrates through the inside of the first spring 226. One end of the guide rod penetrates through the inside of the steering arm 223, and the other end of the guide rod is fixedly connected to the material ejecting rack 225. A plurality of spheres are fixed to one side of the material ejecting rack 225 close to the wire mesh plate 221;

[0047] Particles may get stuck inside the filter holes of the wire mesh plate 221, and the scraping plate 224 cannot contact the stuck particles. At this time, the steering arm 223 can drive the material ejecting rack 225 to rotate. When the material ejecting rack 225 rotates to the position of the filter hole, the elastic force of the first spring 226 pushes the material ejecting rack 225 to push the particles inside the filter holes of the wire mesh plate 221 into the inside of the feeding pipe 22. The particles that can pass through the filter holes of the wire mesh plate 221 will not affect the use of the discharge holes.

[0048] As Figures 1 to 9 shown, a support frame 263 is fixed inside the docking head 26. A plurality of skeletons 265 are rotatably connected to one end of the support frame 263 away from the wire mesh plate 221. A non-woven fabric 262 is fixed to one side of the skeleton 265 close to the support frame 263. The outer diameter of the non-woven fabric 262 is larger than the inner diameter of the docking head 26. A plurality of elastic pieces 264 are fixed to the outside of the support frame 263. The other ends of the elastic pieces 264 are closely attached to the contact surface between the non-woven fabric 262 and the skeleton 265. A docking sleeve 111 is fixed inside the connecting head 11 through a fixing plate. The docking sleeve 111 can be sleeved on the end of the support frame 263 close to the skeleton 265;

[0049] After injecting the slurry, the feed pipe 22 needs to be sealed, and at the same time, the moisture inside the slurry needs to be discharged to the outside. Therefore, when in use, the connector 11 needs to be docked with the feed pipe 22. At this time, the docking sleeve 111 is sleeved outside the support frame 263 and can push the skeleton 265 to drive the non-woven fabric 262 to approach the position of the support frame 263. At this time, the inside of the docking head 26 can be fed. When the grouting is completed, the connector 11 is separated from the feed pipe 22. At this time, the elastic force of the elastic piece 264 pushes the skeleton 265 and the non-woven fabric 262 to reset, so that the non-woven fabric 262 can block the inside of the docking head 26, preventing the slurry inside the feed pipe 22 from flowing out. At the same time, because the non-woven fabric 262 has a filtering effect, the moisture inside the slurry can be filtered to the outside.

[0050] As Figures 1 to 9 shown, a plurality of first limiting grooves 261 are formed on the inner side of the docking head 26, and one end of the skeleton 265 away from the support frame 263 can slide into the inside of the first limiting groove 261;

[0051] When the skeleton 265 rotates, its end can slide into the inside of the first limiting groove 261. At this time, the first limiting groove 261 can limit the skeleton 265, preventing the elastic piece 264 from pushing the skeleton 265 to rotate excessively, resulting in the skeleton 265 being unable to seal the docking head 26.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A tunnel construction reinforcement device, characterized in that: The invention comprises an input pipe, one end of which is connected to the high-pressure grouting equipment, a connector is fixed to the other end of the input pipe, a feed pipe is installed at the end of the connector away from the input pipe, a main reinforcement pipe is fixed to the end of the feed pipe away from the connector, both sides of the main reinforcement pipe are provided with secondary reinforcement pipes, both sides of the main reinforcement pipe are provided with a plurality of discharge holes, both sides of the secondary reinforcement pipe are provided with a plurality of discharge holes, a connection structure is provided between the main reinforcement pipe and the secondary reinforcement pipe, the insides of the main reinforcement pipe and the secondary reinforcement pipe are connected through the connection structure, and the tops of the main reinforcement pipe and the secondary reinforcement pipe are fixed with a plurality of limiting protrusions; A mesh plate is fixed inside the feed pipe, and a plurality of filter holes are opened at equal intervals inside the mesh plate; The mesh plate is internally connected to a rotating shaft, a blade is fixed to one end of the rotating shaft close to the main reinforcing tube, a steering arm is fixed to one end of the rotating shaft away from the blade, and a scraper is fixed to one side of the steering arm; A spring rack is arranged on one side of the steering arm close to the mesh plate, a first spring is fixed on one side of the spring rack close to the steering arm, the other end of the first spring is fixedly connected to the steering arm, a guide rod is passed through the interior of the first spring, one end of the guide rod passes through the interior of the steering arm, the other end of the guide rod is fixedly connected to the spring rack, and a plurality of balls are fixed on one side of the spring rack close to the mesh plate; A support frame is fixed inside the joint, and one end of the support frame away from the mesh plate is rotatably connected to multiple frames, a non-woven fabric is fixed on the side of the frame close to the support frame, and the outer diameter of the non-woven fabric is larger than the inner diameter of the joint, and multiple spring pieces are fixed outside the support frame, and the other end of the spring piece is tightly attached to the contact surface between the non-woven fabric and the frame, and a docking sleeve is fixed inside the connector through a fixing plate, and the docking sleeve can be sleeved on the end of the support frame close to the frame; The slurry is injected into the main reinforcement pipe through the input pipe, and the main reinforcement pipe guides the slurry into the secondary reinforcement pipe. During the continuous transportation process, the main reinforcement pipe and the secondary reinforcement pipe are grouted to the outside through the discharge holes. After the grouting is completed, the connector is separated from the feed pipe, the main reinforcement pipe is separated from the high-pressure grouting equipment, and the main reinforcement pipe and the secondary reinforcement pipe are left between the pipe segment and the inner wall of the tunnel.

2. A tunnel construction reinforcement device according to claim 1, characterized in that: The connection structure includes a connecting tube arranged between the main reinforcement tube and the secondary reinforcement tube, and a connecting tube is also arranged between the adjacent secondary reinforcement tubes on both sides. Connecting sleeves are fixed at both ends of the connecting tube, and the connecting sleeve at one end is arranged on the outside of the main reinforcement tube, and the connecting sleeve at the other end is arranged on the outside of the secondary reinforcement tube. A second limiting groove is opened inside the connecting sleeve, and a gear ring is fixed on the outside of the main reinforcement tube and the secondary reinforcement tube, and the gear ring is rotatably connected to the inside of the second limiting groove. A liquid guide port is opened on the side of the main reinforcement tube and the secondary reinforcement tube close to the connecting tube.

3. A tunnel construction reinforcement device according to claim 2, characterized in that: A movable cavity is provided on the side of the second limiting groove close to the connecting pipe, a guide plate is fixed inside the movable cavity, a telescopic column is passed through the inside of the guide plate, a clamping plate is fixed to the end of the telescopic column away from the guide plate, a second spring is sleeved on the outside of the telescopic column, one end of the second spring is fixedly connected to the telescopic column, the other end of the second spring is fixedly connected to the guide plate, and the clamping plate can be engaged with the gear ring.

4. A tunnel construction reinforcement device according to claim 3, characterized in that: The connecting tube is internally rotatably connected with a rotating plate, a rotating block is fixed on one side of the rotating plate close to the clamping plate, pull ropes are fixed on both sides of the rotating block away from one end of the rotating plate, a limiting plate is fixed on the top of the telescopic column, a clamping block is arranged above the limiting plate, a moving frame is arranged at the end of the limiting plate away from the clamping plate, and the moving frame is arranged below the clamping block.

5. A tunnel construction reinforcement device according to claim 4, characterized in that: A lifting frame is fixed to the top of the block, a guide shell is arranged above the lifting frame, the guide shell is fixed to the top of the active cavity, a third spring is fixed to the top of the lifting frame, the top of the third spring is fixedly connected to the inner wall of the active cavity, and the lifting frame can be engaged with the top of the guide plate.

6. A tunnel construction reinforcement device according to claim 1, characterized in that: A plurality of first limiting grooves are provided on the inner side of the joint, and one end of the frame away from the supporting frame can slide into the first limiting groove.

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