Self-propelled steam spraying maintenance integrated tunnel secondary lining maintenance trolley

Abstract

The invention discloses a self-propelled steam spraying maintenance integrated tunnel secondary lining maintenance trolley which comprises a closed maintenance system, a support, a walking system and a spraying maintenance system. By arranging the closed curing system, when the closed curing system is used, the sealing performance of a curing space can be guaranteed, the space requirement for installation of the curing trolley in a tunnel is met, normal traffic in the tunnel is not affected, rapid alignment can be achieved during construction, and lining concrete curing is conducted in time; according to the steam system, on the premise that original functions are guaranteed, a plurality of construction problems are avoided, the construction applicability is improved, and concrete curing construction can be more conveniently and effectively carried out; by means of the spraying system at the tail of the trolley, the trolley can follow the secondary lining trolley to conduct steam curing on the finished secondary lining, meanwhile, the spraying system at the rear portion of the trolley conducts spraying curing on the secondary lining, subjected to steam curing, of the front plate, and the construction progress of the secondary lining is not affected while the curing time of the secondary lining is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, and in particular to a self-propelled steam spraying and curing integrated tunnel secondary lining curing trolley. Background Art

[0002] In recent years, in response to the large temperature difference and large deformation conditions in tunnel construction, in order to accelerate the thermal reaction of concrete hydration and quickly improve the strength of tunnel lining concrete, the theory of using steam for maintenance has been proposed. Several domestic manufacturers have carried out preliminary design and application of steam maintenance equipment. The existing structure is basically a support frame + closed structure.

[0003] However, in actual use, the construction cycle time of each tunnel slab secondary lining concrete is about 3 to 4 days, and the maintenance trolley closely follows the secondary lining trolley. Therefore, the intelligent maintenance trolley steam cures each tunnel slab secondary lining concrete for a maximum of 3 to 4 days, but the curing time is required to be no less than 14 days. Therefore, in the prior art, other curing after steam curing needs to be done manually after the maintenance trolley leaves, or the progress of secondary lining concrete construction is slowed down, which greatly affects the construction efficiency.

[0004] Therefore, it is necessary to develop a self-propelled steam spray curing integrated tunnel secondary lining curing trolley to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to design a self-propelled steam spray maintenance integrated tunnel secondary lining maintenance trolley in order to solve the above problems.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions: Self-propelled steam spray curing integrated tunnel secondary lining curing trolley, including: Closed curing system for steam curing of the newly completed secondary lining; The closed curing system is installed on the bracket, and the active end is placed on the outer wall of the bracket; Walking system: The walking system is installed at the bottom of the bracket; A spray curing system is used for spray curing the secondary lining which has been steam cured; the spray curing system is installed at the tail of the bracket.

[0007] The beneficial effects of the present invention are: By setting up a closed maintenance system, the closedness of the maintenance space can be ensured during use, meeting the space requirements for the installation of the maintenance trolley in the tunnel, without affecting the normal traffic in the tunnel, and the construction can be quickly aligned and the lining concrete can be maintained in time; the steam system avoids a number of construction problems while ensuring the original function, improves the applicability of the construction, and makes concrete maintenance construction more convenient and effective; the spray system at the rear of the trolley allows the trolley to follow the second lining trolley to steam-cure the completed second lining, while the spray system at the rear of the trolley sprays the second lining whose front plate has completed steam curing, ensuring the maintenance time of the second lining without affecting the construction progress of the second lining. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the overall arrangement of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is a structural diagram of the present invention; Figure 4 is a side view of the present invention; In the figure: 1-closed maintenance system; 2-maintenance structure; 3-circumferential bracket; 4-closed structure; 5-airbag; 6-gantry; 7-hollow steel pipe; 8-storage platform; 9-water storage barrel; 10-channel steel frame; 11-steam generating device; 12-water pump; 13-travel system; 14-active travel mechanism; 15-driven mechanism; 16-steering mechanism; 17-spraying maintenance system; 18-spraying system pipeline; 19-nozzle; 20-bottom frame; 21-bracket. DETAILED DESCRIPTION

[0009] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0010] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0011] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0012] In the description of the present invention, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0013] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0014] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0015] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings.

[0016] like Figure 1-4 As shown, the self-propelled steam spray curing integrated tunnel secondary lining curing trolley includes: Closed curing system 1 for steam curing of the newly completed secondary lining; The closed curing system 1 is mounted on the bracket 21, and the active end is placed on the outer wall of the bracket 21; Walking system 13; the walking system 13 is installed at the bottom of the bracket 21; A spray curing system 17 is used for spray curing the secondary lining that has been steam cured; the spray curing system 17 is installed at the tail of the bracket 21.

[0017] like Figure 1-4 As shown, the bracket 21 includes five portal frames 6, five annular brackets 3, and multiple hollow steel pipes 7. The annular brackets 3 are formed in an arc shape, the portal frames 6 are formed in a U shape, the five annular brackets 3 are arranged in parallel with each other, the five portal frames 6 are arranged in parallel with each other, the five annular brackets 3 and the five portal frames 6 are distributed along the axial direction of the tunnel, and the adjacent annular brackets 3 and the brackets 21 are connected axially by multiple hollow steel pipes 7, and the annular brackets 3 are installed on the outside of the portal frames 6. The annular brackets 3 are made of 20# I-beams according to the annular dimensions of the tunnel to provide skeleton support for the entire bracket 21.

[0018] like Figure 1-4 As shown, the closed curing system 1 includes a curing structure 2, a steam generating device 11, and a water storage barrel 9. The curing structure 2 is a steam curing airbag 5. The steam curing airbag 5 is covered on the outside of the bracket 21. A plurality of steam nozzles are arranged on the outer wall of the steam curing airbag 5. The water inlet end of the steam generating device 11 is connected to the water storage barrel 9, and the output end of the steam generating device 11 is connected to the inner wall of the steam curing airbag 5.

[0019] like Figure 2 As shown, the closed curing system 1 further includes a closed structure 4, which is arranged between the bracket 21 and the steam curing airbag 5, and at both axial ends of the steam curing airbag 5. The output end of the steam generating device 11 passes through the closed structure 4 and communicates with the inner wall of the steam curing airbag 5. The closed structure 4 is an air mold, and the air mold and the curing structure 2 airbag 5 are connected as a whole to ensure the closedness of the system during the steam curing process.

[0020] like Figure 3-4 As shown, a storage platform 8 is provided inside the bracket 21 , and the steam generating device 11 and the water storage barrel 9 are placed on the storage platform 8 .

[0021] like Figure 1-4 As shown, the support 21 also includes a channel steel frame 10, which is formed into an arc-shaped ring structure, and one end of the channel steel frame 10 is connected to the annular support 3 located at the tail; the spray maintenance system 17 includes a spray system pipeline 18 and a water pump 12, the water inlet of the water pump 12 is connected to the water storage bucket 9, and the water outlet of the water pump 12 is connected to the water inlet of the spray system pipeline 18, and the spray system pipeline 18 is laid on the outer wall of the channel steel frame 10. The spray system pipeline 18 (Φ50mm hose) is provided with a plurality of nozzles 19, and the nozzles 19 are used to spray water on the secondary lining. The length of the channel steel frame 10 is the same as that of the support 21. The spray system pipeline 18 is fixed on the channel steel frame 10 by a pipe clamp; a nozzle 19 is provided every 2m on the spray system pipeline 18, and the spray area of ​​a single nozzle 19 is a 2m diameter circle, and the spray distance is 1000mm~1800mm, and a total of 25 nozzles 19 are provided.

[0022] like Figure 1-4As shown, the walking system 13 includes two bottom frames 20, an active walking mechanism 14, and a driven mechanism 15. The two bottom frames 20 are arranged parallel to each other, and the two bottom frames 20 are arranged along the axial direction of the tunnel. The two bottom frames 20 are placed under the bracket 21. The active walking mechanism 14 includes two sets of driving wheels (Φ80cm rubber wheels), which are driven by a driving device (the driving device is a 2*5kw walking motor, which can ensure that the trolley reaches a walking speed of 11.2m / min). The two sets of driving wheels are respectively installed at the lower ends of the head of the two bottom frames 20, and the driven mechanism 15 includes two sets of driven wheels, which are respectively installed at the lower ends of the tail of the two bottom frames 20.

[0023] like Figure 2 As shown, the travel system 13 also includes a steering mechanism 16, which is installed between the bottom frame 20 and the driving wheel, and the steering mechanism 16 is connected to the driving wheel. The steering mechanism 16 adopts a common wheel steering mechanism 16. The steering of the maintenance trolley can be achieved by controlling the steering mechanism 16, and the driving wheel is driven forward or backward by the driving device.

[0024] During the work of this application, the second lining trolley moves forward to carry out the second section of the second lining construction after the first section of the second lining construction is completed, and the closed maintenance system 1 performs steam maintenance on the first section of the second lining that has just been completed. The maintenance process is: the steam generating device 11 generates steam and transmits it to the steam maintenance airbag 5, and finally acts on the second lining that has just been completed through multiple steam nozzles; then the second lining trolley moves forward to carry out the third section of the second lining construction in front, and the maintenance trolley of this application performs closed steam maintenance on the second section of the second lining, and correspondingly, the spray maintenance system 17 at the rear of the maintenance trolley performs spray maintenance on the first section of the second lining, specifically: the water pump 12 draws water from the water storage barrel 9, and transmits it to multiple nozzles 19 through the spray system pipeline 18, and the nozzles 19 spray water to perform concrete maintenance.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. Self-propelled steam spray curing integrated tunnel secondary lining curing trolley, characterized in that: include: Closed curing system for steam curing of the newly completed secondary lining; The closed curing system is installed on the bracket, and the active end is placed on the outer wall of the bracket; Walking system: The walking system is installed at the bottom of the bracket; A spray curing system is used for spray curing the secondary lining which has been steam cured; the spray curing system is installed at the tail of the bracket.

2. The self-propelled steam spraying and curing integrated tunnel secondary lining curing trolley according to claim 1 is characterized in that: The bracket includes multiple door frames, multiple annular brackets, and multiple hollow steel pipes. The annular brackets are formed in an arc shape, the door frames are formed in a U shape, the multiple annular brackets are arranged parallel to each other, the multiple door frames are arranged parallel to each other, the multiple annular brackets and the multiple door frames are distributed along the axial direction of the tunnel, the adjacent annular brackets are connected axially by multiple hollow steel pipes, and the annular brackets are installed on the outside of the door frames.

3. The self-propelled steam spraying and curing integrated tunnel secondary lining curing trolley according to claim 2 is characterized in that: The closed maintenance system includes a maintenance structure, a steam generating device, and a water storage barrel. The maintenance structure is a steam maintenance airbag, which is covered on the outside of the bracket. A plurality of steam nozzles are arranged on the outer wall of the steam maintenance airbag. The water inlet end of the steam generating device is connected to the water storage barrel, and the output end of the steam generating device is connected to the inner wall of the steam maintenance airbag.

4. The self-propelled steam spraying and curing integrated tunnel secondary lining curing trolley according to claim 3 is characterized in that: The closed curing system also includes a closed structure, which is arranged between the bracket and the steam curing airbag and at both axial ends of the steam curing airbag. The output end of the steam generating device passes through the closed structure and is connected to the inner wall of the steam curing airbag.

5. The self-propelled steam spraying and curing integrated tunnel secondary lining curing trolley according to claim 3 is characterized in that: A storage platform is arranged inside the bracket, and the steam generating device and the water storage barrel are placed on the storage platform.

6. The self-propelled steam spraying and curing integrated tunnel secondary lining curing trolley according to claim 3 is characterized in that: The bracket also includes a channel steel frame, which is formed into an arc-shaped ring structure, and one end of the channel steel frame is connected to the annular bracket located at the tail; the spray maintenance system includes a spray system pipeline and a water pump, the water inlet of the water pump is connected to the water storage bucket, the water outlet of the water pump is connected to the water inlet of the spray system pipeline, the spray system pipeline is laid on the outer wall of the channel steel frame, and a plurality of nozzles are arranged on the spray system pipeline, and the nozzles are used to spray water on the secondary lining.

7. The self-propelled steam spraying and curing integrated tunnel secondary lining curing trolley according to claim 6 is characterized in that: The length of the channel steel frame is the same as the length of the bracket.

8. The self-propelled steam spraying and curing integrated tunnel secondary lining curing trolley according to claim 1 is characterized in that: The walking system includes two bottom frames, an active walking mechanism, and a driven mechanism. The two bottom frames are arranged parallel to each other and are arranged along the axial direction of the tunnel. The two bottom frames are placed under the bracket. The active walking mechanism includes two sets of driving wheels, which are driven by a driving device. The two sets of driving wheels are respectively installed at the lower ends of the head parts of the two bottom frames. The driven mechanism includes two sets of driven wheels, which are respectively installed at the lower ends of the tail parts of the two bottom frames.

9. The self-propelled steam spraying and curing integrated tunnel secondary lining curing trolley according to claim 8 is characterized in that: The walking system also includes a steering mechanism, which is installed between the bottom frame and the driving wheel, and is connected to the driving wheel.

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