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

Abstract

The utility model 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 utility model relates to the technical field of tunnel construction, 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, the theory of using steam for curing has been proposed to accelerate the thermal reaction of concrete hydration and quickly improve the strength of tunnel lining concrete. Several domestic manufacturers have carried out preliminary design and application of steam curing equipment. The existing structure is basically a support frame + closed structure.

[0003] However, in practice, the construction cycle for each secondary lining concrete slab in a tunnel takes approximately 3 to 4 days, with the curing trolley closely following the secondary lining trolley. Therefore, the intelligent curing trolley steam-cures each slab of the tunnel secondary lining concrete for a maximum of 3 to 4 days, but the curing period is required to be no less than 14 days. Therefore, the existing technology requires manual curing after the curing trolley leaves, which slows down the secondary lining construction process, significantly affecting 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. Utility Model Content

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

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] Self-propelled steam spray curing integrated tunnel secondary lining curing trolley, including:

[0008] Closed curing system for steam curing of the newly completed secondary lining;

[0009] The closed curing system is mounted on the bracket, and the active end is placed on the outer wall of the bracket;

[0010] Walking system: The walking system is installed at the bottom of the bracket;

[0011] A spray curing system is used to spray cure the secondary lining that has been steam cured; the spray curing system is installed at the tail end of the bracket.

[0012] The closed curing system includes a curing structure, a steam generator, and a water storage tank. The curing structure is a steam curing airbag, which is wrapped around the outside of the bracket. Multiple steam nozzles are provided on the outer wall of the steam curing airbag. The water inlet of the steam generator is connected to the water storage tank, and the output of the steam generator is connected to the inner wall of the steam curing airbag.

[0013] The bracket includes a channel steel frame, which is formed into an arc-shaped ring structure. One end of the channel steel frame is connected to the annular bracket at the tail; the spray maintenance system includes a spray system pipe and a water pump. The water inlet of the water pump is connected to the water storage tank, and the water outlet of the water pump is connected to the water inlet of the spray system pipe. The spray system pipe is laid on the outer wall of the channel steel frame. A plurality of nozzles are provided on the spray system pipe, and the nozzles are used to spray water on the secondary lining.

[0014] The beneficial effects of the present invention are:

[0015] By setting up a closed curing system, the closure of the curing space can be ensured during use, meeting the space requirements for the installation of the curing trolley in the tunnel without affecting the normal traffic in the tunnel. In addition, the construction can be quickly aligned and the lining concrete can be cured in time. While ensuring the original function, the steam system avoids several construction problems, improves the applicability of construction, and makes concrete curing construction more convenient and effective. The spray system at the rear of the trolley allows the trolley to follow the secondary lining trolley to steam-cure the completed secondary lining. At the same time, the spray system at the rear of the trolley sprays the secondary lining whose front plate has completed steam curing, ensuring the curing time of the secondary lining without affecting the construction progress of the secondary lining. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall layout of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 It is a structural diagram of the utility model;

[0019] Figure 4 It is a side view of the utility model;

[0020] In the figure: 1-closed maintenance system; 2-maintenance structure; 3-circumferential support; 4-closed structure; 5-airbag; 6-gantry; 7-hollow steel pipe; 8-storage platform; 9-water storage tank; 10-channel steel frame; 11-steam generator; 12-water pump; 13-travel system; 14-active travel mechanism; 15-driven mechanism; 16-steering mechanism; 17-spray maintenance system; 18-spray system pipeline; 19-sprinkler; 20-bottom frame; 21-support. DETAILED DESCRIPTION

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the embodiments of the present invention. It should be understood that the described embodiments are only a portion of the embodiments of the present invention, not all of them. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0022] 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 claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0023] 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, it does not need to be further defined or explained in subsequent drawings.

[0024] In the description of the present utility model, 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 utility model product 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 utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model.

[0025] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0026] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be understood in a broad sense. For example, "connected" can mean 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 between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0027] The specific implementation of the present invention is described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-4 As shown in the figure, the self-propelled steam spray curing integrated tunnel secondary lining curing trolley includes:

[0029] Closed curing system 1 for steam curing of the newly completed secondary lining;

[0030] 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;

[0031] Walking system 13; the walking system 13 is installed at the bottom of the bracket 21;

[0032] The 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.

[0033] like Figure 1-4 As shown, the support 21 includes five portal frames 6, five annular supports 3, and multiple hollow steel tubes 7. The annular supports 3 are formed into an arc shape, and the portal frames 6 are formed into a U shape. The five annular supports 3 are arranged parallel to each other, and the five portal frames 6 are arranged parallel to each other. The five annular supports 3 and the five portal frames 6 are distributed along the axial direction of the tunnel. Adjacent annular supports 3 are axially connected by multiple hollow steel tubes 7, and the annular supports 3 are installed on the outside of the portal frames 6. The annular supports 3 are made of 20# I-beam according to the circumferential dimensions of the tunnel and provide skeletal support for the entire support 21.

[0034] 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, which is covered on the outside of the bracket 21. A plurality of steam nozzles are provided 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.

[0035] like Figure 2 As shown, the closed curing system 1 also includes a closed structure 4, which is disposed 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 generator 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 inflatable mold, which is integrally connected to the curing structure 2 airbag 5 to ensure the closedness of the system during the steam curing process.

[0036] 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 .

[0037] like Figure 1-4As shown, the support 21 also includes a channel steel frame 10, which is formed into an arc-shaped ring structure. One end of the channel steel frame 10 is connected to the annular support 3 at the rear end. The spray curing system 17 includes a spray system pipe 18 and a water pump 12. The water inlet of the water pump 12 is connected to the water storage tank 9, and the water outlet of the water pump 12 is connected to the water inlet of the spray system pipe 18. The spray system pipe 18 is laid on the outer wall of the channel steel frame 10. The spray system pipe 18 (Φ50mm hose) is equipped with multiple nozzles 19, which 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 pipe 18 is fixed to the channel steel frame 10 with pipe clamps. A nozzle 19 is installed every 2 meters on the spray system pipe 18. Each nozzle 19 sprays a 2-meter diameter circle at a spray distance of 1000 mm to 1800 mm, for a total of 25 nozzles 19.

[0038] like Figure 1-4 As 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 are both 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 end of the head of the two bottom frames 20. The driven mechanism 15 includes two sets of driven wheels, which are respectively installed at the lower end of the tail of the two bottom frames 20.

[0039] like Figure 2 As shown, the travel system 13 also includes a steering mechanism 16, which is mounted between the bottom frame 20 and the driving wheels and is connected to the driving wheels. The steering mechanism 16 is a conventional wheel steering mechanism. Control of the steering mechanism 16 enables the maintenance trolley to steer, while the driving wheels are driven forward or backward by a drive device.

[0040] During the work of this application, the secondary lining trolley moves forward after the construction of the first section of the secondary lining is completed to carry out the construction of the second section of the secondary lining in front. The closed curing system 1 performs steam curing on the first section of the secondary lining that has just been completed. The curing process is as follows: the steam generating device 11 generates steam and transmits it to the steam curing airbag 5, and finally acts on the newly completed secondary lining through multiple steam nozzles; then the secondary lining trolley moves forward to carry out the construction of the third section of the secondary lining in front. The curing trolley of this application performs closed steam curing on the second section of the secondary lining, and correspondingly, the spray curing system 17 at the tail of the curing trolley performs spray curing on the first section of the secondary lining. Specifically, the water pump 12 draws water from the water storage tank 9, and transmits it to multiple nozzles 19 through the spray system pipe 18. The nozzles 19 spray water to perform concrete curing.

[0041] 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 within the scope of protection of the present invention.

Claims

1. Self-propelled steam spray curing integrated tunnel secondary lining curing trolley, characterized by: include: Closed curing system for steam curing of the newly completed secondary lining; The closed curing system is mounted 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 to spray the secondary lining that has been steam cured. The spray curing system is installed at the tail of the bracket. The closed curing system includes a curing structure, a steam generator, and a water storage tank. The curing structure is a steam curing airbag, which is wrapped around the outside of the bracket. Multiple steam nozzles are provided on the outer wall of the steam curing airbag. The water inlet of the steam generator is connected to the water storage tank, and the output of the steam generator is connected to the inner wall of the steam curing airbag. The bracket includes a channel steel frame, which is formed into an arc-shaped ring structure. One end of the channel steel frame is connected to the annular bracket at the tail; the spray maintenance system includes a spray system pipe and a water pump. The water inlet of the water pump is connected to the water storage tank, and the water outlet of the water pump is connected to the water inlet of the spray system pipe. The spray system pipe is laid on the outer wall of the channel steel frame. A plurality of nozzles are provided on the spray system pipe, and the nozzles are used to spray water on the secondary lining.

2. The self-propelled steam spray curing integrated tunnel secondary lining curing trolley according to claim 1 is characterized in that: The bracket includes multiple gantries, multiple annular brackets, and multiple hollow steel pipes. The annular brackets are formed in an arc shape, the gantries are formed in a U shape, the multiple annular brackets are arranged parallel to each other, the multiple gantries are arranged parallel to each other, the multiple annular brackets and the multiple gantries 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 gantries.

3. The self-propelled steam spray curing integrated tunnel secondary lining curing trolley according to claim 1 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.

4. The self-propelled steam spray curing integrated tunnel secondary lining curing trolley according to claim 1 is characterized in that: A storage platform is provided inside the bracket, and the steam generating device and the water storage barrel are placed on the storage platform.

5. The self-propelled steam spray curing integrated tunnel secondary lining curing trolley according to claim 1 is characterized in that: The length of the channel steel frame is the same as the length of the bracket.

6. The self-propelled steam spray 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 both 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 end of the head of the two bottom frames. The driven mechanism includes two sets of driven wheels, which are respectively installed at the lower end of the tail of the two bottom frames.

7. The self-propelled steam spray curing integrated tunnel secondary lining curing trolley according to claim 6 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.

Images