Tunnel construction water spraying maintenance device

Abstract

The invention belongs to the field of tunnel construction, and particularly relates to a tunnel construction water spraying maintenance device which comprises two supporting frames, power wheels are installed at the two ends of the bottom of each supporting frame, straightening frames are installed at the tops of the supporting frames, the tops of the straightening frames are arranged in an arc shape, and isolation cloth is arranged between the two straightening frames. Wherein the top of one supporting frame is provided with a rolling frame used for rolling the isolation cloth, the top of the supporting frame is provided with a side sealing frame capable of ascending and descending, the top of the side sealing frame is provided with an expansion pad, and the top of the isolation cloth is provided with a plurality of detectors and atomizers. Through the arrangement, the constant moisturizing maintenance mode of the tunnel arch wall is achieved, constant moisturizing maintenance is completed by creating a constant-humidity environment, spraying water drops into a closed space instead of directly spraying the water drops on the arch wall and changing the humidity of the whole space, the drying shrinkage stress caused by water evaporation is fundamentally eliminated, concrete hydration is uniform and sufficient, and the maintenance efficiency is improved. And the cracking risk is greatly reduced.

Description

Technical Field

[0001] This invention belongs to the field of tunnel construction, specifically a tunnel construction water spraying and curing device. Background Technology

[0002] Tunnel construction and maintenance are two key stages to ensure the safe and smooth operation of tunnels throughout their entire life cycle. Tunnel maintenance is the long-term health management of tunnels after they are built. It is a systematic and preventive task, which mainly includes: daily inspection and cleaning, structural health monitoring, maintenance of electromechanical facilities and maintenance spraying.

[0003] Water spraying curing specifically refers to continuous moisturizing measures taken in the early stages after concrete pouring to prevent cracks caused by excessively rapid evaporation of moisture and to ensure sufficient cement hydration. Its core principle is to maintain a continuous water film or keep the concrete surface moist through a spray system or manual watering. It typically begins immediately after the concrete has set and must continue for at least [number] days; for important projects or special concrete, the curing period may be longer.

[0004] Traditional tunnel water spraying curing devices, whether manual or using specialized water trucks, directly spray water onto the tunnel arch wall for wet curing. This process creates intense wet-dry cycles, causing periodic stress impacts on the concrete. After each spray, the surface quickly absorbs water and becomes saturated, while the interior remains relatively dry. During the intervals, the water evaporates from the surface inward, generating drying shrinkage stress from the outside in. This repeated tension and compression is like fatigue load, which can easily accumulate inside the concrete and cause microcracks. In addition, the water flow impact may wash away the surface cement paste, damaging the surface density and ultimately affecting the quality of the tunnel arch wall.

[0005] Therefore, the present invention provides a water spraying and curing device for tunnel construction. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a tunnel construction water spraying and curing device, which includes two support frames. Both ends of the bottom of the support frame are equipped with power wheels. A straightening frame is installed on the top of the support frame. The top of the straightening frame is arc-shaped. An isolation cloth is provided between the two straightening frames. A winding frame for winding the isolation cloth is installed on the top of one of the support frames. A side sealing frame that can be raised and lowered is provided on the top of the support frame. An expansion pad is installed on the top of the side sealing frame. Multiple detectors and atomizers are provided on the top of the isolation cloth. Two support frames are used to stretch the isolation fabric taut. Driven by power wheels, the two support frames are moved to the tunnel requiring maintenance. Simultaneously, the gap between the two support frames is adjusted, and the isolation fabric is stretched taut and positioned below the tunnel wall requiring maintenance. At this point, there is a certain gap between the isolation fabric and the tunnel arch wall. Two expansion pads move upwards to seal both ends of the isolation fabric. The expansion pads slightly touch or do not touch the tunnel arch wall. The flexible isolation fabric, when taut, follows the shape of the stretching frame, while the curved... The curvature of the tensioning frame is slightly larger than that of the tunnel arch. Therefore, the closer to the edge, the closer the tensioning frame is to the tunnel arch. At the very edge, the insulating cloth at the top of the tensioning frame will be flush with the tunnel arch, creating a relatively independent space above the insulating cloth. At this point, atomized water droplets are sprayed into this space through an atomizer. The water droplets do not spray directly onto the arch but fill the space, thus altering the overall humidity. A detector continuously monitors the humidity of the space, adjusting the power of the atomizer accordingly to maintain a constant humidity level. Within a predetermined range, after one area is cured, two support frames can be moved to other areas requiring curing using power wheels to continue the work. During the movement, the retractable frame can retract the isolation cloth, and when isolation is needed, the isolation cloth can be released outward. Through this setup, a constant moisture curing method for tunnel arch walls is achieved. Constant moisture curing creates a constant humidity environment, where water droplets are not sprayed directly onto the arch wall, but rather sprayed into a sealed space, changing the overall humidity of the space to complete the curing process. This fundamentally eliminates the drying shrinkage stress caused by water evaporation, ensuring uniform and sufficient hydration of the concrete, achieving the ideal state of "no damage, zero fluctuation," and greatly reducing the risk of cracking. In contrast, periodic water spraying is a delayed water replenishment, and the concrete undergoes repeated wet and dry cycles, generating alternating stress inside, which can easily induce micro-cracks. In some important projects, such as cross-sea tunnels, any leakage cracks must be eliminated; high-speed railway tunnels require linings with extremely high fatigue resistance and cannot have cracks. Using constant moisture curing in such projects can effectively ensure project quality and achieve the required high standards.

[0008] Preferably, the height of the winding frame is lower than that of the straightening frame. Multiple rotating winding rollers are installed on the top of the winding frame, with their outer sides fixed to the edge of the isolation fabric. When the winding rollers on the winding frame rotate, the entire isolation fabric is wound up. The winding frame can be horizontal, located at the bottom of the straightening frame. As the winding rollers wind up, the isolation fabric is ensured to be wound onto them. Simultaneously, because the height of the winding frame is lower than that of the straightening frame, the other end of the isolation fabric is directly fixed to the straightening frame on another support frame. The outward-extending isolation fabric is straightened by the two straightening frames, achieving the effect of isolating space. Alternatively, the winding frame can be an arc shape similar to the straightening frame, which better fits the straightening frame and prevents deformation at corners. In this case, the resulting bending folds after winding will be in the gaps between adjacent winding rollers, thus not affecting the release and retraction of the isolation fabric.

[0009] Preferably, the bottom of the side sealing frame is provided with a support platform, and two hydraulic rods are installed in the support platform. Two symmetrically arranged stabilizing frames are fixed to the outside of the side sealing frame. The top moving end of the hydraulic rod is fixed to the stabilizing frame. A binding telescopic rod is installed between the middle of the side sealing frame and the support platform. The side sealing frame is raised and lowered by the hydraulic rod in the support platform, thereby completing the problem of sealing both sides of the isolation cloth with the expansion pad. The binding telescopic rod is used to increase the stability of the side sealing frame during the raising and lowering process.

[0010] Preferably, the atomizer is a long and thin tube, with multiple atomizers evenly distributed on the top surface of the isolation cloth. The surface of the atomizer is equipped with multiple atomizing nozzles, which directly fill the winding frame with water. The water source is transferred to each atomizer and sprayed outward from the atomizing nozzles. The atomized water droplets have low force and do not directly spray the tunnel arch wall, but rather reduce the humidity in the space as a whole, thereby comprehensively wetting the concrete and completing the constant humidity curing work.

[0011] Preferably, the top surface of the isolation cloth has multiple inner grooves arranged in a rectangular array. The detector is installed in the inner grooves. After winding, both the atomizer and the inner grooves are located outside the winding roller. The detector and the atomizer are evenly distributed on the isolation cloth, which can ensure uniform changes in humidity within the space and ensure that the curing degree of concrete is the same everywhere. The inner grooves can also protect the detector from being squeezed and damaged when the isolation cloth is wound.

[0012] Preferably, a rotating wheel is rotatably engaged on the take-up frame between adjacent winding rollers, and the end of the isolation cloth extends outward, with its extended portion fixed to the outside of the rotating wheel. When the take-up frame is arc-shaped, the setting of the rotating wheel can ensure that the isolation cloth can be smoothly wound onto the take-up frame even when it is not connected to the winding roller, thus ensuring the stability of the winding process.

[0013] Preferably, a translation platform is provided below the winding frame and fixedly connected to the support frame. The moving end of the translation platform is fixedly connected to the corresponding support platform. The winding frame and the corresponding straightening frame are fixedly connected by multiple series frames. The translation platform can control the movement of the side sealing frame on the same side as the winding frame. Because the isolation cloth on the outside of the winding frame will become thicker and thicker during the winding process, and the length of the tunnel to be cured is also different each time, in order to ensure that the side sealing frame can fit the outside of the winding frame, reduce gaps, maintain the humidity of the internal space, and reduce the problem of water droplet leakage.

[0014] Preferably, the winding frame has a hollow cavity inside, in which a rotatable transmission cable is installed. The transmission cable is fixedly connected to the winding roller. A drive motor connected to the transmission cable is installed at the bottom center of the winding frame. When the winding frame is horizontally set, the winding rollers can be joined end to end to form a long cylindrical strip for attaching, retrieving, or releasing the isolation cloth. In this case, the drive motor controls the rotation of the end winding rollers through the transmission cable. When the winding frame is arc-shaped, the drive motor drives multiple winding rollers to rotate synchronously through the flexible transmission cable to complete the winding and releasing work.

[0015] Preferably, both sides of the isolation cloth are fixedly connected to side tubes, the side tubes are filled with expansion strips, the top of the side tube is a water-permeable pad on one side, and the bottom of the side tube is equipped with multiple water outlet valves made of elastic material. The two ends of the side tube are fixedly connected to the winding roller. The atomized water droplets are easily gathered and flow down. The side tube is located at both ends, and the flowing water droplets will enter the interior through the water-permeable pad and be absorbed by the expansion strip, causing it to expand. This not only allows for better fit to the tunnel and filling of small gaps, reducing water mist leakage, but also reduces the continuous outflow of water during curing, which could affect the concrete at the bottom of the tunnel.

[0016] Preferably, a transmission pipe for transmitting water is fixedly connected to one side of the support platform connected to the translation platform. The expansion pad is arc-shaped, and the side of the expansion pad near the side sealing frame is made of rigid material and has a pressure groove adapted to the side sealing frame. The side sealing frame is also fixed with multiple locking buckles for fixing. The side sealing frame has a built-in air pump to inflate the expansion pad and reduce the gap during sealing. The rigid material side of the expansion pad can be firmly fixed to the side sealing frame through the pressure groove and locking buckles to complete the sealing work of lifting, lowering and translating.

[0017] The beneficial effects of this invention are as follows: 1. The tunnel construction water spraying curing device of the present invention, through the setting of isolation cloth and side sealing frame, can form a closed space during curing, realizing a constant moisture curing method for tunnel arch walls. Constant moisture curing creates a constant humidity environment, and water droplets are not sprayed directly on the arch wall, but sprayed in the closed space, changing the overall humidity of the space to complete the curing, fundamentally eliminating the drying shrinkage stress caused by water evaporation, ensuring uniform and sufficient concrete hydration, achieving the ideal state of "no damage and zero fluctuation", and greatly reducing the risk of cracking.

[0018] 2. The tunnel construction water spraying curing device of the present invention, through the setting of the side pipe, the arc of the curved straightening frame is slightly larger than the arc of the tunnel top arch wall. Therefore, the closer to the edge, the closer the straightening frame is to the tunnel arch wall. Until the very edge, the isolation cloth at the top of the straightening frame will fit against the tunnel arch wall. The side pipe is located at both ends, and the water droplets flowing down will enter the interior through the seepage pad and be absorbed by the expansion strip, causing it to expand. This not only allows for better fit against the tunnel and filling of small gaps, reducing water mist leakage, but also reduces the continuous outflow of water during curing, which could affect the concrete at the bottom of the tunnel. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the isolation cloth and the straightening frame of the present invention; Figure 3 This is a perspective view of the side sealing frame and the sliding frame of the present invention; Figure 4 This is a perspective view of the side sealing frame and support platform of the present invention; Figure 5 This is a perspective view of the isolation fabric and winding rack of the present invention; Figure 6 This is a perspective view of the side tube of the present invention; Figure 7 This is a plan view of the isolation fabric and winding roller of the present invention; In the diagram: 1. Isolation cloth; 2. Straightening frame; 3. Side sealing frame; 4. Support frame; 5. Drive wheel; 6. Transmission pipe; 7. Support platform; 8. Atomizer; 9. Detector; 10. Translation platform; 12. Rewinding frame; 13. Connecting frame; 14. Expansion pad; 15. Restraining telescopic rod; 16. Stabilizing frame; 17. Locking buckle; 19. Winding roller; 20. Side tube; 21. Expansion strip; 22. Water seepage pad; 23. Water outlet valve; 24. Inner groove; 25. Rotary wheel; 26. Transmission cable. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] like Figures 1 to 7As shown in the embodiment of the present invention, a tunnel construction water spraying and curing device includes two support frames 4. Both ends of the bottom of the support frame 4 are equipped with power wheels 5. A straightening frame 2 is installed on the top of the support frame 4. The top of the straightening frame 2 is arc-shaped. An isolation cloth 1 is provided between the two straightening frames 2. A winding frame 12 for winding up the isolation cloth 1 is installed on the top of one of the support frames 4. A side sealing frame 3 that can be raised and lowered is provided on the top of the side sealing frame 3. An expansion pad 14 is installed on the top of the isolation cloth 1. Multiple detectors 9 and atomizers 8 are provided on the top of the isolation cloth 1. Two support frames 4 are used to stretch the isolation cloth 1 taut. Driven by the power wheel 5, the two support frames 4 are moved to the tunnel that needs maintenance. At the same time, the gap between the two support frames 4 is adjusted to stretch the isolation cloth 1 taut and position it below the tunnel wall that needs maintenance. At this time, there is a certain gap between the isolation cloth 1 and the tunnel arch wall. Simultaneously, two expansion pads 14 move upward under the action of the side sealing frame 3, sealing both ends of the isolation cloth 1. The expansion pads 14 slightly touch or do not touch the tunnel arch wall. The flexible isolation cloth 1, in the taut state, will... Following the shape of the straightening frame 2, whose curvature is slightly greater than that of the tunnel arch, the closer the straightening frame 2 is to the edge, the closer it is to the tunnel arch. At the very edge, the isolation cloth 1 at the top of the straightening frame 2 will be flush with the tunnel arch, creating a relatively independent space above the isolation cloth 1. At this point, atomized water droplets are sprayed into this space by the atomizer 8. The water droplets do not spray directly onto the arch but fill the space, altering its overall humidity. The humidity is constantly monitored by the detector 9, which adjusts the power of the atomizer 8 accordingly. The humidity in the space is kept constant within a predetermined range. After one area of ​​maintenance is completed, the two support frames 4 can be moved to other areas requiring maintenance using the drive wheels 5. During the movement, the retractable frame 12 can retract the isolation cloth 1, and when isolation is needed, the isolation cloth 1 can be released outwards. Through this setup, a constant humidity maintenance method for the tunnel arch wall is achieved. Constant humidity maintenance creates a constant humidity environment, so water droplets are not sprayed directly onto the arch wall, but rather sprayed into the enclosed space, changing the overall humidity of the space to complete the maintenance and fundamentally eliminating moisture. Evaporation-induced shrinkage stress ensures uniform and sufficient hydration of concrete, achieving the ideal state of "no damage, zero fluctuation," greatly reducing the risk of cracking. In contrast, periodic water spraying is a delayed water replenishment, causing the concrete to undergo repeated wet-dry cycles, generating alternating stress internally, which can easily induce microcracks. In some important projects, such as cross-sea tunnels, any leakage cracks must be eliminated; high-speed railway tunnels require linings with extremely high fatigue resistance and cannot have cracks. Using constant moisture curing methods in such projects can effectively guarantee project quality and achieve the required high standards.

[0023] The height of the winding frame 12 is lower than that of the straightening frame 2. The top of the winding frame 12 is equipped with a plurality of rotating winding rollers 19. The outer side of the winding rollers 19 is fixed to the edge of the isolation cloth 1. During operation, when the winding roller 19 on the winding frame 12 rotates, the entire isolation cloth 1 will be wound up. The winding frame 12 can be horizontal. At this time, the winding frame 12 is located at the bottom of the straightening frame 2. As the winding roller 19 is wound up, it can be ensured that the isolation cloth 1 is wound on the winding roller 19. At the same time, since the height of the winding frame 12 is lower than that of the straightening frame 2, the other end of the isolation cloth 1 is directly fixed to the straightening frame 2 on another support frame 4. The isolation cloth 1 that is ejected outward will be straightened by the two straightening frames 2, thus achieving the effect of isolating space. Alternatively, the winding frame 12 can be made into the same arc shape as the straightening frame 2, which is more compatible with the straightening frame 2 and will not deform at the corner. At this time, the bending wrinkles generated after winding will be in the gap between the adjacent winding rollers 19, thus not affecting the release and recycling of the isolation cloth 1.

[0024] The bottom of the side sealing frame 3 is provided with a support platform 7, and two hydraulic rods are installed in the support platform 7. Two symmetrically arranged stabilizing frames 16 are fixed to the outside of the side sealing frame 3. The top moving end of the hydraulic rod is fixed to the stabilizing frame 16. A binding telescopic rod 15 is installed between the middle part of the side sealing frame 3 and the support platform 7. During operation, the side sealing frame 3 is raised and lowered by the hydraulic rod in the support platform 7, thereby completing the problem of sealing both sides of the isolation cloth 1 with the expansion pad 14. The telescopic rod 15 is used to increase the stability of the side sealing frame 3 during the raising and lowering process.

[0025] The atomizer 8 is a long and thin tube, and multiple atomizers 8 are equidistantly distributed on the top surface of the isolation cloth 1. Multiple atomizing nozzles are installed on the surface of the atomizer 8. During operation, water is directly added to the winding rack 12. The water is then transferred to each atomizer 8 and sprayed outward from the atomizing nozzle. The atomized water droplets have low power and do not directly spray the tunnel arch wall. Instead, they reduce the humidity in the space as a whole, thereby fully wetting the concrete and completing the constant humidity curing work.

[0026] The top surface of the isolation cloth 1 is provided with a plurality of inner grooves 24, which are distributed in a rectangular array on the top surface of the isolation cloth 1. The detector 9 is installed in the inner grooves 24. The atomizer 8 and the inner grooves 24 are both located outside the winding roller 19 after winding. During operation, the detector 9 and the atomizer 8 are evenly distributed on the isolation cloth 1, which can ensure the uniform change of humidity in the space and ensure that the curing degree of concrete is the same everywhere. The inner groove 24 can protect the detector 9 from being squeezed and damaged when the isolation cloth 1 is rolled up.

[0027] A rotating wheel 25 is rotatably engaged on the take-up frame 12 between adjacent winding rollers 19, and the end of the isolation cloth 1 extends outward, with its extended portion fixedly connected to the outside of the rotating wheel 25. During operation, when the winding frame 12 is arc-shaped, the setting of the roller 25 ensures that the isolation cloth 1 can be wound smoothly on the winding frame 12 even when it is not connected to the winding roller 19, thus ensuring the stability of the winding process.

[0028] Below the winding frame 12, a translation platform 10 is fixedly connected to the support frame 4. The moving end of the translation platform 10 is fixedly connected to the corresponding support platform 7. The winding frame 12 and the corresponding straightening frame 2 are fixedly connected by multiple series frames 13. During operation, the side sealing frame 3 on the same side as the winding frame 12 can be moved by the translation table 10. Because the isolation cloth 1 on the outside of the winding frame 12 will become thicker and thicker during the winding process, and the length of the tunnel to be maintained each time is different, in order to ensure that the side sealing frame 3 can fit the outside of the winding frame 12, reduce gaps, maintain the humidity of the internal space, and reduce the problem of water droplet leakage.

[0029] The winding frame 12 has a hollow cavity inside, in which a rotatable transmission cable 26 is installed. The transmission cable 26 is fixedly connected to the winding roller 19. A transmission motor connected to the transmission cable 26 is installed at the middle of the bottom end of the winding frame 12. During operation, when the winding frame 12 is set horizontally, the winding rollers 19 can be connected end to end to form a long cylindrical strip, and the isolation cloth 1 can be attached for recycling or release. At this time, the drive motor controls the rotation of the end winding rollers 19 through the drive cable 26. When the winding frame 12 is arc-shaped, the drive motor drives multiple winding rollers 19 to rotate synchronously through the flexible drive cable 26 to complete the winding and release work.

[0030] Both sides of the isolation cloth 1 are fixedly connected to the side tubes 20, the side tubes 20 are filled with expansion strips 21, the top of the side tubes 20 is a water-permeable pad 22 on one side, the bottom of the side tubes 20 is equipped with multiple water outlet valves 23 made of elastic material, and both ends of the side tubes 20 are fixedly connected to the winding rollers 19. During operation, the atomized water droplets easily gather and flow down. The side pipes 20 are located at both ends, and the flowing water droplets will enter the interior through the seepage pad 22 and be absorbed by the expansion strip 21, causing it to expand. This not only allows it to better fit the tunnel, fill small gaps, and reduce water mist leakage, but also reduces the continuous outflow of water during maintenance work, which could affect the concrete at the bottom of the tunnel. During the winding process, the water will be quickly discharged from the bottom outlet valve 23 without affecting the winding process.

[0031] A transmission pipe 6 for transmitting water source is fixedly connected to one side of the support platform 7 connected to the translation platform 10. The expansion pad 14 is arc-shaped. The side of the expansion pad 14 near the side sealing frame 3 is made of rigid material and has a pressure groove adapted to the side sealing frame 3. The side sealing frame 3 is also fixedly connected with a plurality of locking buckles 17 for fixing. During operation, the side sealing frame 3 has a built-in air pump to inflate the expansion pad 14, reducing the gap during sealing. The rigid material side of the expansion pad 14 can be firmly fixed to the side sealing frame 3 through the pressure groove and the locking buckle 17, completing the sealing work of lifting and moving.

[0032] During operation, two support frames 4 are used to stretch and taut the isolation cloth 1. Driven by the power wheel 5, the two support frames 4 are moved to the tunnel requiring maintenance. Simultaneously, the gap between the two support frames 4 is adjusted to stretch and taut the isolation cloth 1, positioning it below the tunnel wall requiring maintenance. At this point, there is a certain gap between the isolation cloth 1 and the tunnel arch wall. Meanwhile, two expansion pads 14 move upwards under the action of the side sealing frame 3, sealing both ends of the isolation cloth 1. The expansion pads 14 slightly touch or do not touch the tunnel arch wall. The flexible isolation cloth 1, when stretched taut... The state follows the shape of the straightening frame 2. The curvature of the curved straightening frame 2 is slightly larger than that of the tunnel arch wall. Therefore, the closer to the edge, the closer the straightening frame 2 will be to the tunnel arch wall. Until the very edge, the isolation cloth 1 on top of the straightening frame 2 will be in contact with the tunnel arch wall, thus forming a relatively independent space above the isolation cloth 1. At this time, atomized water droplets are sprayed into this space through the atomizer 8. The water droplets are not sprayed directly onto the arch wall, but fill the space, changing the humidity of the space as a whole. The humidity of the space is constantly monitored by the detector 9, thereby adjusting the function of the atomizer 8. The system maintains a constant humidity level within a predetermined range in the space. After one area is cured, the two support frames 4 can be moved to other areas requiring curing using the drive wheels 5. During the movement, the retractor 12 can retract the isolation cloth 1, and release it when isolation is needed. This setup achieves a constant humidity curing method for the tunnel arch wall. Constant humidity curing creates a constant humidity environment, preventing water droplets from directly spraying onto the arch wall. Instead, the water is sprayed into the enclosed space, altering the overall humidity and thus completing the curing process, fundamentally eliminating water... The drying shrinkage stress caused by partial evaporation ensures that the concrete is hydrated evenly and fully, achieving the ideal state of "no damage and zero fluctuation," which greatly reduces the risk of cracking. In contrast, periodic water spraying is a delayed water replenishment, and the concrete undergoes repeated wet and dry cycles, generating alternating stress inside, which can easily induce microcracks. In some important projects, such as cross-sea tunnels, any leakage cracks must be eliminated. High-speed railway tunnels require linings with extremely high fatigue resistance and cannot have cracks. Using constant moisture curing methods in such projects can effectively ensure project quality and meet the required high standards.

[0033] When the winding roller 19 on the winding frame 12 rotates, the entire isolation cloth 1 will be wound up. The winding frame 12 can be horizontal. At this time, the winding frame 12 is located at the bottom of the straightening frame 2. As the winding roller 19 is wound up, it can be ensured that the isolation cloth 1 is wound on the winding roller 19. At the same time, since the height of the winding frame 12 is lower than that of the straightening frame 2, the other end of the isolation cloth 1 is directly fixed to the straightening frame 2 on another support frame 4. The isolation cloth 1 that is ejected outward will be straightened by the two straightening frames 2, thus achieving the effect of isolating space. Alternatively, the winding frame 12 can be made into the same arc shape as the straightening frame 2, which is more compatible with the straightening frame 2 and will not deform at the corner. At this time, the bending wrinkles generated after winding will be in the gap between the adjacent winding rollers 19, thus not affecting the release and recycling of the isolation cloth 1.

[0034] The side sealing frame 3 is raised and lowered by the hydraulic rod in the support platform 7, thereby completing the problem of sealing both sides of the isolation cloth 1 by the expansion pad 14. The telescopic rod 15 is used to increase the stability of the side sealing frame 3 during the raising and lowering process.

[0035] Water is directly added to the winding rack 12, and the water is transferred to each atomizer 8 and sprayed outward from the atomizing nozzle. The atomized water droplets have low power and will not directly spray the tunnel arch wall, but will reduce the humidity in the space as a whole, thereby comprehensively wetting the concrete and completing the constant humidity curing work.

[0036] The detector 9 and the atomizer 8 are evenly distributed on the isolation cloth 1, which can ensure the uniform change of humidity in the space and ensure that the curing degree of concrete is the same everywhere. The inner groove 24 can protect the detector 9 from being squeezed and damaged when the isolation cloth 1 is rolled up.

[0037] When the winding frame 12 is arc-shaped, the setting of the roller 25 can ensure that the isolation cloth 1 is not connected to the winding roller 19 during winding, and can also be wound smoothly on the winding frame 12, thus ensuring the stability of the winding process.

[0038] The side sealing frame 3, which is on the same side as the winding frame 12, can be moved by the translation table 10. During the winding process, the isolation cloth 1 on the outside of the winding frame 12 will become thicker and thicker, and the length of the tunnel to be maintained each time is different. In order to ensure that the side sealing frame 3 can fit the outside of the winding frame 12, reduce gaps, maintain the humidity of the internal space, and reduce the problem of water droplet leakage.

[0039] When the winding frame 12 is set horizontally, the winding rollers 19 can be connected end to end to form a long cylindrical strip, and the isolation cloth 1 can be attached for recycling or release. At this time, the drive motor can control the end winding rollers 19 to rotate through the drive cable 26. When the winding frame 12 is arc-shaped, the drive motor can drive multiple winding rollers 19 to rotate synchronously through the flexible drive cable 26 to complete the winding and release work.

[0040] The atomized water droplets easily gather and flow down. The side pipes 20 are located at both ends. The flowing water droplets will enter the interior through the seepage pad 22 and be absorbed by the expansion strip 21, causing it to expand. This not only allows it to better fit the tunnel, fill small gaps, and reduce water mist leakage, but also reduces the continuous outflow of water during maintenance work, which could affect the concrete at the bottom of the tunnel.

[0041] The side sealing frame 3 has a built-in air pump to inflate the expansion pad 14 and reduce the gap during sealing. The rigid material side of the expansion pad 14 can be firmly fixed to the side sealing frame 3 through the pressure groove and the locking buckle 17 to complete the sealing work of lifting and moving.

[0042] The foregoing has shown and described 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tunnel construction water spraying maintenance device, characterized in that: It includes two support frames, each with a drive wheel at both ends of its bottom. A straightening frame is mounted on the top of the support frame, and the top of the straightening frame is arc-shaped. An isolation cloth is placed between the two straightening frames. A winding frame for winding the isolation cloth is mounted on the top of one of the support frames. A height-adjustable side sealing frame is mounted on the top of the side sealing frame, and an expansion pad is mounted on the top of the isolation cloth. Multiple detectors and atomizers are mounted on the top of the isolation cloth.

2. The tunnel construction water spraying curing device according to claim 1, characterized in that: The height of the winding frame is lower than that of the straightening frame, and multiple rotating winding rollers are installed on the top of the winding frame. The outer side of the winding rollers is fixed to the edge of the isolation cloth.

3. A tunnel construction water spraying curing device according to claim 2, characterized in that: The bottom of the side sealing frame is provided with a support platform, and two hydraulic rods are installed in the support platform. Two symmetrically arranged stabilizing frames are fixed to the outside of the side sealing frame. The top moving end of the hydraulic rod is fixed to the stabilizing frame. A binding telescopic rod is installed between the middle of the side sealing frame and the support platform.

4. A tunnel construction water spraying curing device according to claim 3, characterized in that: The atomizer is a long, thin tube, with multiple atomizers evenly distributed on the top surface of the insulating cloth, and multiple atomizing nozzles are installed on the surface of the atomizer.

5. A tunnel construction water spraying curing device according to claim 4, characterized in that: The top surface of the isolation cloth has multiple inner grooves, which are distributed in a rectangular array on the top surface of the isolation cloth. The detector is installed in the inner grooves. After winding, both the atomizer and the inner grooves are located outside the winding roller.

6. A tunnel construction water spraying curing device according to claim 5, characterized in that: A rotating wheel is rotatably engaged on the take-up frame between adjacent winding rollers, and the end of the isolation cloth extends outward, with its extended portion fixed to the outside of the rotating wheel.

7. A tunnel construction water spraying curing device according to claim 6, characterized in that: Below the winding frame is a translation platform fixedly connected to the support frame. The moving end of the translation platform is fixedly connected to the corresponding support platform. The winding frame and the corresponding straightening frame are fixedly connected by multiple series frames.

8. A tunnel construction water spraying curing device according to claim 7, characterized in that: The winding frame has a hollow cavity inside, in which a rotatable transmission cable is installed. The transmission cable is fixedly connected to the winding roller, and a transmission motor connected to the transmission cable is installed at the bottom center of the winding frame.

9. A tunnel construction water spraying curing device according to claim 8, characterized in that: Both sides of the isolation cloth are fixedly connected to side tubes, the side tubes are filled with expansion strips, the top of the side tubes is a water-permeable pad on one side, the bottom of the side tubes is equipped with multiple water outlet valves made of elastic material, and both ends of the side tubes are fixedly connected to the winding rollers.

10. A tunnel construction water spraying curing device according to claim 9, characterized in that: A transmission pipe for transmitting water is fixedly connected to one side of the support platform connected to the translation platform. The expansion pad is arc-shaped. The side of the expansion pad near the side sealing frame is made of rigid material and has a pressure groove adapted to the side sealing frame. Multiple locking buckles for fixing are also fixedly connected to the side sealing frame.

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