Tunnel secondary lining maintenance trolley

Abstract

The utility model discloses a tunnel secondary lining maintenance trolley, which comprises a spraying assembly, a plurality of maintenance nozzles, a plurality of maintenance assemblies and a plurality of maintenance assemblies, wherein the spraying assembly comprises a spraying pipeline and a plurality of maintenance nozzles arranged on the spraying pipeline; the frame assembly comprises a supporting frame and an arc-shaped maintenance frame, the arc-shaped maintenance frame is supported at the top of the supporting frame, and the multiple maintenance nozzles are distributed on the arc-shaped maintenance frame and used for spraying maintenance water to the surface of the tunnel secondary lining; the frame assembly is mounted on the movable foundation and used for moving the tunnel secondary lining maintenance trolley; according to the tunnel secondary lining maintenance trolley, the strength and quality of concrete can be improved through maintenance, meanwhile, the trolley is more convenient to disassemble and assemble, simple in structure, convenient to assemble, small in work limitation and extremely wide in application range, and on the premise that the secondary lining concrete maintenance quality is guaranteed, the trolley can be moved only through cooperation of a few persons; the manpower input during the concrete curing period is reduced, the construction cost is reduced, and the full-coverage curing of the secondary lining concrete is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, and particularly relates to a tunnel secondary lining maintenance trolley. Background Art

[0002] In China, highway, railway, water conservancy and other projects are under large-scale construction. Tunnels account for an increasing proportion, especially the long tunnels in the highway and railway industries are increasing. The construction quality of the secondary lining concrete directly determines the service life of the tunnel project and the operation safety of the whole line. The first seven days after the pouring of the secondary lining concrete are the key period for the improvement of concrete strength, which directly determines the overall quality of the tunnel secondary lining. The strength of the secondary lining concrete is the key factor to ensure the stability of the tunnel structure. During construction, if the strength of the secondary lining concrete is insufficient, the gap between the secondary lining and the surrounding rock will increase, further leading to an increase in tunnel deformation. Therefore, the maintenance of the secondary lining concrete directly affects the improvement of concrete strength and ensures the integrity and stability of the tunnel structure.

[0003] In the prior art, traditional secondary lining concrete maintenance trolleys are processed with materials such as I-beams and angle steels. The trolleys are relatively bulky, difficult to disassemble and assemble in the limited space of the tunnel. Due to the bulkiness of the trolleys, multiple people are required to cooperate to move the maintenance trolley during the maintenance process, resulting in a large labor intensity for on-site personnel.

[0004] Therefore, in order to ensure the maintenance work of the secondary lining concrete, it is urgent to develop a tunnel secondary lining maintenance trolley, which can improve the concrete strength quality through maintenance, and at the same time, the trolley is more convenient to disassemble and assemble, only a few people are required to cooperate to move the trolley, reducing the labor input during the concrete maintenance period and realizing the full-coverage maintenance of the secondary lining concrete. Content of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide a tunnel secondary lining maintenance trolley, which can improve the concrete strength quality through maintenance, and at the same time, the trolley is more convenient to disassemble and assemble, only a few people are required to cooperate to move the trolley, reducing the labor input during the concrete maintenance period and realizing the full-coverage maintenance of the secondary lining concrete.

[0006] The tunnel secondary lining maintenance trolley of the utility model includes a spraying assembly, which includes a spraying pipeline and a plurality of maintenance spray heads arranged on the spraying pipeline;

[0007] A frame assembly, which includes a support frame and an arc-shaped maintenance frame. The arc-shaped maintenance frame is supported on the top of the support frame, and the plurality of maintenance spray heads are distributed on the arc-shaped maintenance frame for spraying maintenance water on the surface of the tunnel secondary lining;

[0008] A moving base, on which the frame assembly is installed for moving the tunnel secondary lining maintenance trolley.

[0009] Furthermore, the arc-shaped curing frame is composed of multiple sections of the curing frame in a detachable manner. The core of the arc-shaped curing frame consists of multiple inverted-V-shaped steel bars. The frame border of the arc-shaped curing frame is arc-shaped, and the contour of the border arc conforms to the shape of the tunnel secondary lining.

[0010] Furthermore, the support frame and the arc-shaped curing frame are truss structures. The outer appearance of the support frame is in a portal shape. The support frame includes a left support beam, a right support beam, and a support cross beam. The two ends of the support cross beam are respectively connected to the tops of the left support beam and the right support beam.

[0011] Furthermore, the mobile base includes walking wheels and a curing water tank for storing curing water. The walking wheels are installed at the bottom of the curing water tank.

[0012] Furthermore, the bottoms of the left support beam and the right support beam are installed on the top of the curing water tank. The front-to-back length of the curing water tank is greater than the front-to-back length of the left support beam and the right support beam.

[0013] Furthermore, there are two spraying pipelines. The two spraying pipelines are respectively distributed upward along the left support beam and the right support beam and are fixed on both sides of the arc-shaped curing frame.

[0014] Furthermore, the multiple curing nozzles are connected in series at equal intervals through the spraying pipelines and are distributed on both sides of the arc-shaped curing frame. The bending radian of the spraying pipeline on the arc-shaped curing frame is the same as the bending radian of the tunnel top.

[0015] Furthermore, the water inlets of the spraying pipelines are respectively hermetically connected to the curing water tanks at the bottoms of the left support beam and the right support beam. Through the pipeline water supply of the spraying pipelines, the curing nozzles continuously spray curing water on the tunnel secondary lining.

[0016] Furthermore, it further includes a connecting component. The connecting component is arranged at the top of the support frame and both ends of the curing frame. The connecting component on the support frame is used to connect the support frame and the arc-shaped curing frame. The connecting components at both ends of the curing frame are used to form the arc-shaped curing frame in a detachable manner.

[0017] Furthermore, it further includes a spraying control component. The spraying control component includes a booster pump. The booster pump is arranged on the curing water tank and is connected to the spraying pipeline, and is used to control the input volume of the curing water in the spraying pipeline.

[0018] Advantages of the present utility model: The tunnel secondary lining curing trolley of the present utility model can improve the concrete strength quality through curing. At the same time, the disassembly and assembly of the trolley are more convenient, the structure is simple and the assembly is convenient, the working limitation is small, and the applicable range is extremely wide. On the premise of ensuring the curing quality of the secondary lining concrete, only a few people are needed to cooperate to move the trolley, reducing the labor input during the concrete curing period, reducing the construction cost, and realizing the full-coverage curing of the secondary lining concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0020] Figure 1 is a schematic structural diagram of the present utility model;

[0021] Figure 2 is a top view of the present utility model;

[0022] Figure 3 is a schematic diagram of the curing frame of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0025] Figure 1 is a schematic structural diagram of the present utility model, Figure 2 is a top view of the present utility model, Figure 3Schematic diagram of the maintenance framework of the present utility model, as shown in the figure: The secondary lining maintenance trolley for tunnels in this embodiment includes a spraying assembly, which includes a spraying pipeline 7 and a plurality of maintenance spray nozzles 8 arranged on the spraying pipeline 7; a framework assembly, which includes a support framework 5 and an arc-shaped maintenance framework 6. The arc-shaped maintenance framework 6 is supported on the top of the support framework 5. The plurality of maintenance spray nozzles 8 are distributed on the arc-shaped maintenance framework 6 and are used to spray maintenance water onto the surface of the tunnel secondary lining 1; a moving base, and the framework assembly is installed on the moving base and is used to move the tunnel secondary lining maintenance trolley. When maintaining the tunnel secondary lining 1, the tunnel secondary lining maintenance trolley is transferred into the tunnel through the moving base, so that the plurality of maintenance spray nozzles 8 on the spraying pipeline 7 face the surface of the tunnel secondary lining 1, and the maintenance water in the spraying pipeline 7 can be sprayed onto the surface of the tunnel secondary lining 1 through the plurality of maintenance spray nozzles 8 to achieve the purpose of maintenance. After the maintenance of a section of the secondary lining in the tunnel is completed, the framework assembly is pushed to drive the moving base to move the maintenance trolley forward to perform the maintenance of the next section of the secondary lining.

[0026] In this embodiment, the arc-shaped maintenance framework is composed of multiple sections of maintenance frameworks 6 in a detachable manner. The core of the arc-shaped maintenance framework is composed of a plurality of inverted V-shaped steel bars. The frame of the arc-shaped maintenance framework is arc-shaped, and the contour of the arc of the frame is adapted to the tunnel secondary lining 1. The arc-shaped maintenance framework is composed of multiple sections of maintenance frameworks 6 in a detachable manner, and the arc-shaped maintenance framework adapted to the tunnel secondary lining 1 can be spliced from multiple sections of maintenance frameworks 6 according to the size of the tunnel crown, with higher applicability. As Figure 3 shown, the inverted V-shaped steel bars play a role in fixing and stabilizing the core of the arc-shaped maintenance framework, and can effectively prevent the arc-shaped maintenance framework from being displaced or moving during the use of the tunnel secondary lining trolley, thereby ensuring the structural stability and integrity of the arc-shaped maintenance framework. The contour of the arc of the frame of the arc-shaped maintenance framework is adapted to the tunnel secondary lining 1, ensuring that the maintenance water sprayed by the maintenance spray nozzles 8 can be sprayed onto the surface of the tunnel secondary lining 1 more efficiently.

[0027] In this embodiment, the support framework and the arc-shaped maintenance framework are truss structures. The outer appearance of the support framework is in a portal shape. The support framework includes a left support beam 501, a right support beam 502, and a support cross beam 503. Both ends of the support cross beam 503 are connected to the tops of the left support beam 501 and the right support beam 502 respectively. The internal force of the truss structure is mainly axial force. The members in the truss structure only bear tension or pressure, without bending moment and shear force, making the design and construction simpler, the whole structure relatively light, and the layout flexible. As Figure 1As shown, the portal-shaped support frame can effectively bear the weight of the upper arc-shaped curing frame through the combination of the left support beam 501, the right support beam 502 and the support cross beam 503. Due to its geometric characteristics, the portal structure has high stability and bending resistance. During tunnel construction, the portal-shaped support frame can maintain the stability of the tunnel secondary lining trolley. A relatively large space is provided below the portal-shaped support frame, which not only facilitates the operation of the trolley by on-site construction personnel, but also enables on-site engineering vehicles, construction equipment, etc. to pass through, improving construction efficiency.

[0028] In this embodiment, the mobile base includes traveling wheels 2 and a curing water tank 3 for storing curing water. The traveling wheels 2 are installed at the bottom of the curing water tank 3; the curing water tank 3 is in a cube shape, and the traveling wheels 2 can be welded to the bottom of the curing water tank 3 by welding. One traveling wheel 2 is welded at each of the four corners of the bottom of the curing water tank 3. The four traveling wheels 2 are more stable when the tunnel secondary lining curing trolley moves, and the frame assembly is not prone to tipping over. At the same time, the load of the spraying assembly and the frame assembly can be dispersed, improving the overall load-bearing capacity.

[0029] In this embodiment, the bottoms of the left support beam 501 and the right support beam 502 are installed on the top of the curing water tank 3, and the front-to-back length of the curing water tank 3 is greater than the front-to-back length of the left support beam 501 and the right support beam 502; the left support beam 501 and the right support beam 502 are installed at the center position of the top of the curing water tank 3. Generally, the bottom of the left support beam 501 and the bottom of the right support beam 502 are respectively welded to the center position of the top of the curing water tank 3 by welding; the front-to-back length of the curing water tank 3 is greater than the front-to-back length of the left support beam 501 and the right support beam 502. As Figure 2 shown, the front-to-back length refers to the front-to-back length along the moving direction of the tunnel secondary lining trolley. Here, the front-to-back length of the curing water tank 3 is greater than the front-to-back length of the left support beam 501 and the right support beam 502. The curing water tank 3 serves as the base of the left support beam 501 and the right support beam 502. The larger the front-to-back length, the larger the contact area with the ground in cooperation with the traveling wheels 2, thereby providing better stability and preventing the trolley from tipping over during on-site use, making the construction safer and more reliable. The larger the front-to-back length, the larger the bottom area of the curing water tank 3, which can better disperse the weight, enabling the base to bear greater pressure or weight and making the structure more stable.

[0030] In this embodiment, there are two spraying pipelines 7, which are respectively distributed upward along the left support beam 501 and the right support beam 502 and fixed on both sides of the arc-shaped curing frame; the two spraying pipelines 7 are respectively fixed on both sides of the arc-shaped curing frame. During the secondary lining curing process, along with the movement of the trolley, the two spraying pipelines 7 can spray curing water on the surface of the secondary lining through the curing nozzles 8 one after the other, ensuring that as much curing water as possible can be sprayed on the surface of the secondary lining and improving the curing effect.

[0031] In this embodiment, the multiple curing nozzles 8 are connected in series at equal intervals through the spraying pipeline 7 and distributed on both sides of the arc-shaped curing frame. The bending radian of the spraying pipeline 7 on the arc-shaped curing frame is the same as the bending radian of the tunnel top. The water inlets of the spraying pipeline 7 are respectively hermetically connected to the curing water tanks 3 at the bottoms of the left support beam 501 and the right support beam 502. Through the pipeline water supply of the spraying pipeline 7, the curing nozzles 8 continuously spray curing water on the secondary lining 1 of the tunnel; the bending radian of the spraying pipeline 7 is the same as the bending radian of the tunnel top. The spraying pipeline 7 connects the multiple curing nozzles 8 in series, enabling the distribution trajectory of the multiple curing nozzles 8 to be the same as the bending radian of the tunnel top, making the spraying of curing water on the secondary lining 1 more fitting and improving the efficiency.

[0032] In this embodiment, it further includes a connection component 9, which is arranged at the top of the support frame and at both ends of the curing frame 6. The connection component 9 on the support frame is used to connect the support frame and the arc-shaped curing frame, and the connection components 9 at both ends of the curing frame 6 are used to detachably form the arc-shaped curing frame; it also includes a spraying control component, which includes a booster pump 4. The booster pump 4 is arranged on the curing water tank 3 and connected to the spraying pipeline 7, and is used to control the input amount of curing water in the spraying pipeline 7; the connection component 9 can adopt a flange of a welded steel plate and cooperate with bolts to connect multiple sections of the curing frame 6 to form the arc-shaped curing frame. The support frame and the arc-shaped curing frame can also be connected by the above-mentioned flange of the welded steel plate, or other connection components 9 can be used to achieve detachable installation, which will not be elaborated here.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A tunnel secondary lining maintenance trolley, characterized in that: include: A spraying assembly, comprising a spraying pipeline and a plurality of maintenance nozzles arranged on the spraying pipeline; A frame assembly, comprising a supporting frame and an arc-shaped curing frame, wherein the arc-shaped curing frame is supported on the top of the supporting frame, and the plurality of curing nozzles are distributed on the arc-shaped curing frame and are used to spray curing water onto the surface of the secondary lining of the tunnel; A mobile foundation, on which the frame assembly is mounted, for moving the tunnel secondary lining maintenance trolley; The arc-shaped curing frame is detachably composed of multiple sections of curing frames, the core of the arc-shaped curing frame is composed of multiple figure-eight steel bars, the frame of the arc-shaped curing frame is arc-shaped, and the contour of the arc-shaped frame is conformable to the secondary lining of the tunnel; The support frame and the arc-shaped maintenance frame are truss structures. The appearance of the support frame is door-shaped. The support frame includes a left support beam, a right support beam and a support cross beam. The two ends of the support cross beam are respectively connected to the top of the left support beam and the right support beam.

2. The tunnel secondary lining maintenance trolley according to claim 1, characterized in that: The mobile foundation comprises running wheels and a curing water tank for storing curing water, and the running wheels are installed at the bottom of the curing water tank.

3. The tunnel secondary lining maintenance trolley according to claim 2 is characterized in that: The bottoms of the left support beam and the right support beam are installed on the top of the maintenance water tank, and the front-to-back length of the maintenance water tank is greater than the front-to-back length of the left support beam and the right support beam.

4. The tunnel secondary lining maintenance trolley according to claim 1, characterized in that: There are two spraying pipelines, which are respectively distributed upward along the left support beam and the right support beam and fixed on both sides of the arc-shaped maintenance frame.

5. The tunnel secondary lining maintenance trolley according to claim 4, characterized in that: The multiple maintenance nozzles are connected in series at equal intervals through the spraying pipeline and distributed on both sides of the arc-shaped maintenance frame. The bending curvature of the spraying pipeline on the arc-shaped maintenance frame is the same as the bending curvature of the tunnel top.

6. The tunnel secondary lining maintenance trolley according to claim 2, characterized in that: The water inlets of the spraying pipeline are respectively sealed and connected to the maintenance water tanks at the bottom of the left support beam and the right support beam, and water is supplied through the pipes of the spraying pipeline. The maintenance nozzles continuously spray maintenance water onto the secondary lining of the tunnel.

7. The tunnel secondary lining maintenance trolley according to claim 1, characterized in that: It also includes a connecting component, which is set on the top of the support frame and the two ends of the maintenance frame. The connecting component on the support frame is used to connect the support frame and the arc-shaped maintenance frame. The connecting components at both ends of the maintenance frame are used to detachably form the arc-shaped maintenance frame.

8. The tunnel secondary lining maintenance trolley according to claim 1, characterized in that: It also includes a spray control component, which includes a booster pump. The booster pump is arranged on the maintenance water tank and connected to the spray pipeline to control the input amount of maintenance water in the spray pipeline.

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