A tunnel lining concrete curing system

Abstract

The present disclosure proposes a tunnel lining concrete curing system, comprising: a curing frame disposed within the lining; an air cushion disposed on the curing frame, with its edge resting against the inner surface of the lining to form a sealed space between the air cushion and the inner surface of the lining; a moistening layer disposed on the curing frame, located within the sealed space and resting against the inner surface of the lining; and a water injection device disposed on the curing frame, with its injection end connected to the moistening layer. In the tunnel lining concrete curing system disclosed herein, the provision of the moistening layer and the air cushion effectively improves the curing quality of the lining, ensures the concrete strength of the lining, and significantly enhances the safety of tunnel construction.

Description

Technical Field

[0001] The present disclosure relates to the technical field of lining maintenance, and in particular to a tunnel lining concrete maintenance system. Background Art

[0002] Lining refers to a permanent support structure constructed with reinforced concrete and other materials along the circumference of the tunnel to prevent deformation or collapse of the surrounding rock. During the construction process, the quality requirements for the concrete are very strict. Usually, the lining concrete needs to be moisturized for a long time after pouring for a period of time. The traditional moisturizing maintenance method is to directly sprinkle or spray water on the inner surface of the lining, which has many problems.

[0003] Since water will flow directly to the ground of the tunnel after being sprayed on the inner surface of the lining, not only will the water stay on the inner surface of the lining for a short time, but it will also be difficult for the water to fully cover the inner surface of the lining, resulting in uneven humidity on the inner surface of the lining, and eventually leading to cracks on the inner surface of the lining. In addition, it will result in a large amount of water consumption and sewage will accumulate on the tunnel ground, which will not only cause a serious waste of water resources, but also lead to poor sanitation in the tunnel.

[0004] Furthermore, the inner surface of the lining is easily damaged by the impact of water during the spraying process. Furthermore, the inner surface of the lining is directly exposed to the tunnel environment and is easily affected. Consequently, traditional maintenance methods result in lower concrete quality for the lining, posing a significant safety hazard. Summary of the Invention

[0005] The present disclosure aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, an object of the present disclosure is to provide a tunnel lining concrete curing system.

[0007] To achieve the above-mentioned purpose, the present disclosure provides a tunnel lining concrete curing system, comprising: a curing frame, which is arranged in the lining; an inflatable cushion, which is arranged on the curing frame, and the edge of the inflatable cushion abuts the inner surface of the lining, so that a closed space is formed between the inflatable cushion and the inner surface of the lining; a wetting layer, which is arranged on the curing frame, is located in the closed space, and abuts the inner surface of the lining; and a water injection device, which is arranged on the curing frame, and the water injection end of the water injection device is connected to the wetting layer.

[0008] Optionally, the maintenance system also includes: an insulation layer, which is arranged on the maintenance frame and is located in the confined space; a heating layer, which is arranged on a side of the insulation layer close to the inner surface of the lining, and is located in the confined space, and the wetting layer is arranged on a side of the heating layer close to the inner surface of the lining; a controller, which is arranged on the maintenance frame and is electrically connected to the water injection device; a heating wire, which is arranged in the heating layer, and the input end of the heating wire is electrically connected to the output end of the controller; a temperature sensor, which is arranged in the wetting layer, and the output end of the temperature sensor is electrically connected to the input end of the controller.

[0009] Optionally, the water injection device includes: a liquid storage tank, which is arranged on the maintenance frame; an infusion pump, which is arranged on the maintenance frame, the liquid inlet end of the infusion pump is connected to the liquid outlet end of the liquid storage tank, and the input end of the infusion pump is electrically connected to the output end of the controller; a hose, which is provided with multiple liquid outlet ends, the liquid outlet end of the hose is arranged in the wetting layer, and the liquid inlet end of the hose is connected to the liquid outlet end of the infusion pump; a humidity sensor, which is arranged on a side of the inflatable cushion close to the inner surface of the lining, the humidity sensor is located in the confined space, and the output end of the humidity sensor is electrically connected to the input end of the controller.

[0010] Optionally, the maintenance frame includes: a wheel frame; a longitudinal beam, the longitudinal beam is arranged on the wheel frame; a skeleton, the skeleton is arranged on the longitudinal beam, the skeleton is distributed in the lining along the circumference of the lining, the inflatable cushion is arranged on the skeleton, and the thermal insulation layer is arranged on the skeleton; a walking wheel, the walking wheel is rotatably arranged on the wheel frame, a guide rail is arranged in the lining, and the walking wheel is rollingly connected to the guide rail; a reducer, the reducer is arranged on the wheel frame, and the output shaft of the reducer is connected to the input shaft of the walking wheel; a motor, the motor is arranged on the wheel frame, the output shaft of the motor is connected to the input shaft of the reducer, and the input end of the motor is connected to the output end of the controller; an encoder, the encoder is arranged on the wheel frame, the input shaft of the encoder is connected to the input shaft of the walking wheel, and the output end of the encoder is electrically connected to the input end of the controller.

[0011] Optionally, the longitudinal beam is slidably arranged on the wheel frame in the vertical direction; the maintenance frame also includes: a hydraulic cylinder, one end of the hydraulic cylinder is hinged to the wheel frame, the other end of the hydraulic cylinder is hinged to the longitudinal beam, and the input end of the hydraulic cylinder is electrically connected to the output end of the controller.

[0012] Optionally, the maintenance frame also includes: an operating platform, which is arranged on the longitudinal beam, and the controller is arranged on the operating platform; a button, which is arranged on the operating platform, and the output end of the button is electrically connected to the input end of the controller; and a display, which is arranged on the operating platform, and the input end of the display is electrically connected to the output end of the controller.

[0013] Optionally, the maintenance system also includes: an alarm, which is arranged on the skeleton, and the input end of the alarm is electrically connected to the output end of the controller; a wind speed sensor, which is arranged on the side of the inflatable cushion close to the inner surface of the lining, and the wind speed sensor is located in the confined space, and the output end of the wind speed sensor is electrically connected to the input end of the controller.

[0014] Optionally, a plurality of empty slots are provided on the skeleton, and a plurality of protrusions are provided on the side of the inflatable cushion close to the inner surface of the lining. The protrusions are inserted into the empty slots, and the side of the protrusions close to the inner surface of the lining abuts against the side of the insulation layer away from the inner surface of the lining.

[0015] Optionally, a support frame is provided in the inflatable cushion, and the support frame is provided on the maintenance frame. An inflation valve is provided on the inflatable cushion, and the inflation valve is used to fill the inflatable cushion with gas, and the density of the gas is less than the density of air.

[0016] Optionally, the maintenance system further includes: an escape opening, the escape opening being arranged on the maintenance frame, and a ventilation pipe being inserted into the escape opening.

[0017] The technical solution provided by the present disclosure may have the following beneficial effects:

[0018] The water injection device delivers water to the wetting layer. Since the wetting layer abuts against the inner surface of the lining, the water can be evenly distributed on the inner surface of the lining through the wetting layer, and the residence time is greatly extended. This not only ensures that the inner surface of the lining can be evenly wetted to avoid cracking, but also reduces water consumption, saving water resources while avoiding the problem of poor tunnel hygiene caused by the accumulation of sewage on the tunnel floor. At the same time, the provision of the wetting layer also avoids the problem of damage to the inner surface of the lining due to the impact of water;

[0019] The inflatable cushion isolates the inner surface of the lining from the environment inside the tunnel, thereby reducing the impact of the environment inside the tunnel on the lining and ensuring the maintenance quality of the lining;

[0020] Therefore, through the setting of the moistening layer and the air cushion, the maintenance quality of the lining is effectively improved, the concrete strength of the lining is guaranteed, and the safety of tunnel construction is greatly improved.

[0021] Additional aspects and advantages of the present disclosure will be given in part in the description below and in part will be obvious from the description below, or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0023] Figure 1 Schematic diagram of the structure of a tunnel lining concrete curing system proposed in one embodiment of the present disclosure;

[0024] Figure 2 yes Figure 1 Enlarged view of part A in the middle;

[0025] Figure 3 This is a schematic structural diagram of a water injection device in a tunnel lining concrete curing system according to an embodiment of the present disclosure;

[0026] Figure 4 is a circuit diagram of a tunnel lining concrete curing system according to an embodiment of the present disclosure;

[0027] Figure 5 This is a schematic structural diagram of a protrusion in a tunnel lining concrete curing system according to an embodiment of the present disclosure;

[0028] As shown in the figure: 1. Maintenance frame, 2. Inflatable cushion, 3. Wetting layer, 4. Insulation layer, 5. Heating layer, 6. Controller, 7. Heating wire, 8. Temperature sensor, 9. Liquid storage tank, 10. Infusion pump, 11. Hose, 12. Humidity sensor, 13. Wheel frame, 14. Longitudinal beam, 15. Skeleton, 16. Travel wheel, 17. Encoder, 18. Hydraulic cylinder, 19. Operating platform, 20. Alarm, 21. Wind speed sensor, 22. Empty slot, 23. Protrusion, 24. Avoidance, 25. Ventilation pipe, 26. Motor, 27. Button, 28. Display. DETAILED DESCRIPTION

[0029] The following describes in detail embodiments of the present disclosure, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present disclosure and are not to be construed as limiting the present disclosure. On the contrary, the embodiments of the present disclosure include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0030] like Figure 1As shown, an embodiment of the present disclosure proposes a tunnel lining concrete curing system, including a curing frame 1, an air cushion 2, a wetting layer 3 and a water injection device. The curing frame 1 is arranged in the lining, the air cushion 2 is arranged on the curing frame 1, and the edge of the air cushion 2 is against the inner surface of the lining to form a closed space between the air cushion 2 and the inner surface of the lining. The wetting layer 3 is arranged on the curing frame 1, the wetting layer 3 is located in the closed space, and the wetting layer 3 is against the inner surface of the lining. The water injection device is arranged on the curing frame 1, and the water injection end of the water injection device is connected to the wetting layer 3.

[0031] It can be understood that the water injection device delivers water to the wetting layer 3. Since the wetting layer 3 abuts against the inner surface of the lining, the water can be evenly distributed on the inner surface of the lining through the wetting layer 3, and the residence time is greatly extended. This not only ensures that the inner surface of the lining can be evenly wetted to avoid cracking, but also reduces water consumption, saving water resources while avoiding the problem of poor tunnel sanitation caused by the accumulation of sewage on the tunnel floor. At the same time, due to the provision of the wetting layer 3, the problem of damage to the inner surface of the lining due to the impact of water is also avoided.

[0032] The inflatable cushion 2 isolates the inner surface of the lining from the environment inside the tunnel, thereby reducing the impact of the environment inside the tunnel on the lining and ensuring the maintenance quality of the lining;

[0033] Therefore, by providing the moistening layer 3 and the air cushion 2, the maintenance quality of the lining is effectively improved, the concrete strength of the lining is guaranteed, and the safety of the tunnel construction is greatly improved.

[0034] It should be noted that the moistening layer 3 is made of a material that can hold a certain amount of water, such as sponge, foam, etc.

[0035] In some embodiments, a maintenance system is disposed behind the tunnel lining trolley to perform maintenance on the lining after the lining construction is completed.

[0036] like Figure 1 and Figure 4 As shown, in some embodiments, the curing system further includes an insulation layer 4, a heating layer 5, a controller 6, a heating wire 7 and a temperature sensor 8. The insulation layer 4 is arranged on the curing frame 1, and the insulation layer 4 is located in a confined space. The heating layer 5 is arranged on the side of the insulation layer 4 close to the inner surface of the lining, and the heating layer 5 is located in a confined space. The wetting layer 3 is arranged on the side of the heating layer 5 close to the inner surface of the lining. The controller 6 is arranged on the curing frame 1, and the controller 6 is electrically connected to the water injection device. The heating wire 7 is arranged in the heating layer 5, and the input end of the heating wire 7 is electrically connected to the output end of the controller 6. The temperature sensor 8 is arranged in the wetting layer 3, and the output end of the temperature sensor 8 is electrically connected to the input end of the controller 6.

[0037] It can be understood that the controller 6 controls the heating wire 7 to generate heat, so that the temperature of the heating layer 5 is increased, and the heating layer 5 then heats the wet layer 3, thereby achieving thermal insulation of the inner surface of the lining, effectively improving the maintenance quality of the lining;

[0038] The temperature sensor 8 detects the temperature in the wet layer 3 and converts the temperature signal into an electrical signal and sends it to the controller 6. The controller 6 controls the heating of the heating wire 7 according to the electrical signal, thereby realizing automatic thermal insulation of the lining and maintaining the inner surface of the lining within a certain temperature range, effectively improving the maintenance quality and efficiency of the lining and reducing the labor cost of lining maintenance;

[0039] The temperature sensor 8 is arranged in the wet layer 3, which is closer to the inner surface of the lining, effectively improving the overall accuracy of the temperature control of the inner surface of the lining;

[0040] By setting up the thermal insulation layer 4, the heat loss of the heating layer 5, the wetting layer 3 and the inner surface of the lining is effectively prevented, thereby improving the maintenance quality of the lining. The inflatable cushion 2 isolates the thermal insulation layer 4, the heating layer 5 and the wetting layer 3 from the tunnel environment, further reducing the heat loss of the inner surface of the lining, reducing the impact of the environment in the tunnel on the lining, and improving the maintenance quality of the lining.

[0041] In some embodiments, by setting the controller 6, it should be ensured that the temperature difference between the inner surface of the lining and the environment is no more than 20 degrees, the temperature difference between the wet layer 3 and the inner surface of the lining is no more than 15 degrees, and at the same time, the temperature of the inner surface of the lining is no less than 15 degrees.

[0042] In some embodiments, the insulation layer 4 is made of a material with good thermal insulation effect, such as polystyrene foam board, glass fiber insulation cotton, etc.

[0043] In some embodiments, the heating layer is made of a material with high thermal conductivity, such as thermally conductive insulating elastic rubber, a flexible thermal pad, etc.

[0044] In some embodiments, after the heating wire 7 is disposed in the heating layer 5 , a waterproof material may be disposed on the heating layer 5 to prevent water in the wetting layer 3 from penetrating into the heating wire 7 .

[0045] In some embodiments, the temperature sensor 8 is a patch-type temperature sensor 8 to adapt to a thinner wetting layer 3 .

[0046] In some embodiments, the controller 6 may be a programmable logic controller 6 .

[0047] like Figure 3 and Figure 4As shown, in some embodiments, the water injection device includes a liquid storage tank 9, an infusion pump 10, a hose 11 and a humidity sensor 12. The liquid storage tank 9 is arranged on the curing frame 1, and the infusion pump 10 is arranged on the curing frame 1. The liquid inlet end of the infusion pump 10 is connected to the liquid outlet end of the liquid storage tank 9, and the input end of the infusion pump 10 is electrically connected to the output end of the controller 6. A plurality of liquid outlet ends are provided on the hose 11, and the liquid outlet end of the hose 11 is arranged in the wetting layer 3. The liquid inlet end of the hose 11 is connected to the liquid outlet end of the infusion pump 10. The humidity sensor 12 is arranged on the side of the inflatable cushion 2 close to the inner surface of the lining. The humidity sensor 12 is located in a confined space, and the output end of the humidity sensor 12 is electrically connected to the input end of the controller 6.

[0048] It can be understood that the infusion pump 10 delivers the moisturizing liquid in the liquid storage tank 9 to the hose 11, and the moisturizing liquid in the hose 11 enters the moistening layer 3 through the multiple liquid outlet ends of the hose 11, thereby achieving the moistening of the inner surface of the lining by the moistening layer 3;

[0049] The humidity sensor 12 detects the humidity in the enclosed space and converts the humidity signal into an electrical signal and sends it to the controller 6. The controller 6 controls the infusion pump 10 according to the electrical signal, thereby realizing automatic moisturizing of the lining and maintaining the humidity in the enclosed space within a certain range, effectively improving the maintenance quality and efficiency of the lining and reducing the labor cost of lining maintenance.

[0050] In some embodiments, the controller 6 is configured so that the air humidity in the enclosed space is not less than 90%.

[0051] In some embodiments, the hose 11 is arranged in a serpentine shape in the moistening layer 3 , and openings are evenly arranged on the hose 11 , and the insulation liquid in the hose 11 enters the moistening layer 3 through the openings.

[0052] In some embodiments, the moisturizing fluid may be water.

[0053] like Figure 1 、 Figure 2 and Figure 4As shown, in some embodiments, the maintenance frame 1 includes a wheel frame 13, a longitudinal beam 14, a skeleton 15, a walking wheel 16, a reducer, a motor 26 and an encoder 17. The longitudinal beam 14 is arranged on the wheel frame 13, the skeleton 15 is arranged on the longitudinal beam 14, the skeleton 15 is distributed in the lining along the circumference of the lining, the inflatable cushion 2 is arranged on the skeleton 15, the insulation layer 4 is arranged on the skeleton 15, the walking wheel 16 is rotatably arranged on the wheel frame 13, a guide rail is arranged in the lining, the walking wheel 16 is rollingly connected to the guide rail, the reducer is arranged on the wheel frame 13, the output shaft of the reducer is connected to the input shaft of the walking wheel 16, the motor 26 is arranged on the wheel frame 13, the output shaft of the motor 26 is connected to the input shaft of the reducer, the input end of the motor 26 is connected to the output end of the controller 6, the encoder 17 is arranged on the wheel frame 13, the input shaft of the encoder 17 is connected to the input shaft of the walking wheel 16, and the output end of the encoder 17 is electrically connected to the input end of the controller 6.

[0054] It can be understood that the motor 26 drives the reducer, and the reducer drives the walking wheel 16, thereby realizing the self-propelled movement of the curing frame 1, so that the curing system as a whole has high flexibility and continuity in curing the lining;

[0055] The encoder 17 detects the number of rolling circles of the traveling wheel 16 through the input shaft, and converts the number of rolling circles into an electrical signal and sends it to the controller 6. The controller 6 calculates the travel distance of the traveling wheel 16 based on the electrical signal and the circumference of the traveling wheel 16, thereby obtaining information such as the lining mileage and the overall moving distance of the maintenance system based on the travel distance of the traveling wheel 16, thereby facilitating the realization of automated lining maintenance.

[0056] By arranging components such as the skeleton 15 and the longitudinal beam 14, effective support is provided for components such as the air cushion 2 and the insulation layer 4, while providing a better clearance environment in the tunnel, thereby reducing the impact of lining maintenance on other construction processes in the tunnel.

[0057] In some embodiments, the skeleton 15 includes a plurality of transverse frames and a plurality of longitudinal bars. The transverse frames are arranged along the circumference of the lining and are sequentially arranged along the depth direction of the tunnel. The plurality of longitudinal bars are arranged between the transverse frames.

[0058] In some embodiments, the transverse frame and the longitudinal rods are made of lighter materials, such as aluminum alloy.

[0059] like Figure 1 、 Figure 3 and Figure 4 As shown, in some embodiments, the longitudinal beam 14 is slidably arranged on the wheel frame 13 in the vertical direction, and the maintenance frame 1 also includes a hydraulic cylinder 18, one end of the hydraulic cylinder 18 is hinged to the wheel frame 13, and the other end of the hydraulic cylinder 18 is hinged to the longitudinal beam 14, and the input end of the hydraulic cylinder 18 is electrically connected to the output end of the controller 6.

[0060] It is understood that the hydraulic cylinder 18 extends and retracts to drive the longitudinal beam 14 up and down, thereby driving the skeleton 15 up and down, so that the moistening layer 3 can abut against or away from the inner surface of the lining, thereby improving the convenience of lining maintenance. When the moistening layer 3 abuts against the inner surface of the lining under the drive of the hydraulic cylinder 18, the coverage and pressure can be effectively guaranteed, the adhesion effect can be greatly improved, and the moistening layer 3 can be guaranteed to evenly wet the inner surface of the lining and reduce the amount of water flowing to the tunnel surface.

[0061] The controller 6 controls the curing frame 1 through the hydraulic cylinder 18 to realize the automatic lifting of the curing frame 1, which effectively improves the curing efficiency of the lining and reduces the labor cost of lining curing.

[0062] In some embodiments, the controller 6 controls the oil inlet valve and the oil outlet valve of the hydraulic cylinder 18 to achieve extension and retraction control of the hydraulic cylinder 18 .

[0063] It should be noted that since the lining and the skeleton 15 are both arc-shaped, after the curing frame 1 rises, the wetting layer 3 at the top is compressed to a greater extent, while the wetting layer 3 at the side is compressed to a lesser extent. However, it is sufficient to ensure that the wetting layer 3 is in contact with the inner surface of the lining.

[0064] like Figure 1 and Figure 4 As shown, in some embodiments, the maintenance frame 1 also includes an operating platform 19, a button 27 and a display 28. The operating platform 19 is set on the longitudinal beam 14, the controller 6 is set on the operating platform 19, the button 27 is set on the operating platform 19, the output end of the button 27 is electrically connected to the input end of the controller 6, the display 28 is set on the operating platform 19, and the input end of the display 28 is electrically connected to the output end of the controller 6.

[0065] It can be understood that the control information is transmitted to the controller 6 via the button 27 to control the raising and lowering of the curing frame 1, the injection of water into the moistening layer 3, the heating of the heating layer 5, etc., and the control information of the controller 6, such as the humidity in the enclosed space, the temperature in the moistening layer 3, etc., is displayed via the display 28. Thus, the setting of the button 27 and the display 28 effectively improves the convenience of use of the curing system.

[0066] The provision of the operating platform 19 facilitates the operation of the buttons 27 and viewing of the display 28 on the maintenance system by the operator, making the use more convenient.

[0067] In some embodiments, the liquid storage tank 9 and the infusion pump 10 can both be placed on the operating platform 19 .

[0068] like Figure 4As shown, in some embodiments, the maintenance system also includes an alarm 20 and a wind speed sensor 21. The alarm 20 is arranged on the frame 15, and the input end of the alarm 20 is electrically connected to the output end of the controller 6. The wind speed sensor 21 is arranged on the side of the inflatable cushion 2 close to the inner surface of the lining. The wind speed sensor 21 is located in a confined space, and the output end of the wind speed sensor 21 is electrically connected to the input end of the controller 6.

[0069] It can be understood that the wind speed sensor 21 detects the wind speed in the confined space and converts the wind speed signal into an electrical signal and sends it to the controller 6. The controller 6 determines whether the wind speed in the confined space exceeds the range. At the same time, it also determines whether the humidity in the confined space and the temperature in the moist layer 3 exceed the range. If they exceed the range, the alarm information is sent to the alarm 20 to make the alarm 20 sound an alarm, so that the operator can timely understand the maintenance status of the lining.

[0070] In some embodiments, the controller 6 is configured to ensure that the wind speed in the enclosed space is less than 1 m / s.

[0071] In some embodiments, the alarm 20 may be an audible and visual alarm 20 or a two-color alarm light.

[0072] like Figure 5 As shown, in some embodiments, a plurality of empty grooves 22 are provided on the skeleton 15, and a plurality of protrusions 23 are provided on the side of the inflatable cushion 2 close to the inner surface of the lining. The protrusions 23 are inserted into the empty grooves 22, and the side of the protrusions 23 close to the inner surface of the lining is against the side of the insulation layer 4 away from the inner surface of the lining.

[0073] It can be understood that the provision of multiple slots 22 can effectively reduce the weight of the skeleton 15, and the provision of the protrusions 23 can enable the inflatable cushion 2 to effectively support the thermal insulation layer 4 while forming an enclosed space, thereby ensuring that the moistening layer 3 can stably rest against the inner surface of the lining, thereby improving the maintenance quality of the lining.

[0074] In some embodiments, a support frame is provided in the inflatable cushion 2, and the support frame is provided on the maintenance frame 1. An inflation valve is provided on the inflatable cushion 2, and the inflation valve is used to fill the inflatable cushion 2 with gas, and the density of the gas is less than the density of air.

[0075] It can be understood that, by setting the support frame, the inflatable cushion 2 is effectively supported while being set on the curing frame 1, ensuring that the inflatable cushion 2 can quickly form a closed space on the inner surface of the lining after being inflated;

[0076] By setting the gas density in the inflatable cushion 2, the inflatable cushion 2 has an upward lift, which reduces the overall weight of the maintenance system and the load-bearing capacity of the maintenance frame 1, thereby effectively improving the overall stability of the maintenance system.

[0077] In some embodiments, the gas in the inflatable cushion 2 may be helium or the like.

[0078] In some embodiments, the inflation valve may be a one-way valve.

[0079] In some embodiments, the inflatable cushion 2 may be a double-layer structure, and the double-layer structure is made of polyethylene material and polyamide material respectively, so as to achieve flame retardancy and heat resistance of the inflatable cushion 2.

[0080] In some embodiments, the support frame is formed by connecting multiple fiber light plastic rods, some of which pass through the inflatable cushion 2 and are fixed on the frame 15, and sealant is provided on the inflatable cushion 2 at the places where the fiber light plastic rods pass through.

[0081] like Figure 1 As shown, in some embodiments, the maintenance system further includes an escape opening 24 , which is provided on the maintenance frame 1 , and a ventilation pipe 25 is inserted into the escape opening 24 .

[0082] It can be understood that the provision of the avoidance opening 24 not only prevents the maintenance system as a whole from affecting the ventilation pipe 25 during movement, but also provides a certain degree of support for the ventilation pipe 25, making the provision of the ventilation pipe 25 in the tunnel more stable.

[0083] In some embodiments, the escape opening 24 can be formed by a rope, one end of the rope is connected to the frame 15, and the other end of the rope is connected to the frame 15 after passing through the ventilation pipe 25. Thus, the escape opening 24 is formed between the rope and the frame 15, and the ventilation pipe 25 is inserted into the escape opening 24.

[0084] It should be noted that, in the description of this disclosure, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, in the description of this disclosure, unless otherwise specified, the meaning of "plurality" is two or more.

[0085] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present disclosure includes additional implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0086] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0087] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. A tunnel lining concrete curing system, characterized in that: include: a curing frame, the curing frame being arranged in the lining; an inflatable cushion, wherein the inflatable cushion is arranged on the curing frame, and an edge of the inflatable cushion abuts against the inner surface of the lining, so that a closed space is formed between the inflatable cushion and the inner surface of the lining; a moistening layer, the moistening layer being disposed on the curing frame, the moistening layer being located in the enclosed space, and the moistening layer being against the inner surface of the lining; A water injection device, the water injection device is arranged on the curing frame, and the water injection end of the water injection device is connected to the wet layer; Wherein, the water injection device includes: a liquid storage tank, an infusion pump, a hose and a humidity sensor, the liquid storage tank is arranged on the maintenance frame, the infusion pump is arranged on the maintenance frame, the liquid inlet end of the infusion pump is connected to the liquid outlet end of the liquid storage tank, the input end of the infusion pump is electrically connected to the output end of the controller, a plurality of liquid outlet ends are provided on the hose, the liquid outlet end of the hose is arranged in the wetting layer, the liquid inlet end of the hose is connected to the liquid outlet end of the infusion pump, the humidity sensor is arranged on a side of the inflatable cushion close to the inner surface of the lining, the humidity sensor is located in the confined space, the output end of the humidity sensor is electrically connected to the input end of the controller, wherein the hose is arranged in a serpentine shape in the wetting layer, openings are evenly provided on the hose, and the insulation liquid in the hose enters the wetting layer through the openings; The maintenance frame includes: a wheel frame, a longitudinal beam, a skeleton, a walking wheel, a reducer, a motor and an encoder, the longitudinal beam is arranged on the wheel frame, the skeleton is arranged on the longitudinal beam, the skeleton is distributed in the lining along the circumference of the lining, the inflatable cushion is arranged on the skeleton, the insulation layer is arranged on the skeleton, the walking wheel is rotatably arranged on the wheel frame, a guide rail is arranged in the lining, the walking wheel is rollingly connected to the guide rail, the reducer is arranged on the wheel frame, the output shaft of the reducer is connected to the input shaft of the walking wheel, the motor is arranged on the wheel frame, the output shaft of the motor is connected to the input shaft of the reducer, the input end of the motor is connected to the output end of the controller, the encoder is arranged on the wheel frame, the input shaft of the encoder is connected to the input shaft of the walking wheel, and the output end of the encoder is electrically connected to the input end of the controller; The longitudinal beam is slidably arranged on the wheel frame in a vertical direction; the maintenance frame further comprises: a hydraulic cylinder, one end of the hydraulic cylinder is hinged to the wheel frame, the other end of the hydraulic cylinder is hinged to the longitudinal beam, and the input end of the hydraulic cylinder is electrically connected to the output end of the controller; The maintenance frame further includes: an operating platform, a button, and a display, wherein the operating platform is arranged on the longitudinal beam, the controller is arranged on the operating platform, the button is arranged on the operating platform, the output end of the button is electrically connected to the input end of the controller, the display is arranged on the operating platform, and the input end of the display is electrically connected to the output end of the controller; The maintenance system further includes: an alarm and a wind speed sensor, wherein the alarm is provided on the frame, the input end of the alarm is electrically connected to the output end of the controller, the wind speed sensor is provided on a side of the inflatable cushion close to the inner surface of the lining, the wind speed sensor is located in the confined space, and the output end of the wind speed sensor is electrically connected to the input end of the controller; The frame is provided with a plurality of empty slots, and the side of the inflatable cushion close to the inner surface of the lining is provided with a plurality of protrusions, the protrusions are inserted into the empty slots, and the side of the protrusion close to the inner surface of the lining abuts against the side of the thermal insulation layer away from the inner surface of the lining; A support frame is provided in the inflatable cushion, and the support frame is provided on the maintenance frame. An inflation valve is provided on the inflatable cushion, and the inflation valve is used to fill the inflatable cushion with gas, and the density of the gas is less than the density of air.

2. The tunnel lining concrete curing system according to claim 1, characterized in that: The maintenance system further comprises: A thermal insulation layer, the thermal insulation layer being arranged on the curing frame and located in the confined space; A heating layer, the heating layer being arranged on a side of the thermal insulation layer close to the inner surface of the lining, the heating layer being located in the confined space, and the moistening layer being arranged on a side of the heating layer close to the inner surface of the lining; A controller, the controller being disposed on the curing frame and electrically connected to the water injection device; A heating wire, wherein the heating wire is disposed in the heating layer, and an input end of the heating wire is electrically connected to an output end of the controller; A temperature sensor is provided in the wetting layer, and an output end of the temperature sensor is electrically connected to an input end of the controller.

3. The tunnel lining concrete curing system according to claim 1 or 2, characterized in that: The maintenance system further comprises: The escape opening is arranged on the maintenance frame, and a ventilation pipe is inserted into the escape opening.

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