Open cut tunnel vault concrete curing device

Abstract

The utility model discloses an open-cut tunnel vault concrete curing device, belongs to the technical field of tunnel construction, and solves the problems that in the prior art, vault concrete curing efficiency is low, the curing quality is difficult to guarantee, and consequently the strength of a lining vault is insufficient. The open-cut tunnel vault concrete curing device comprises a walking mechanism, a supporting mechanism, a connecting mechanism, a water tank, a high-pressure water pump and a spraying mechanism. The walking mechanism is arranged on the top of the tunnel side wall. The supporting mechanism is arranged on the walking mechanism. The water tank is arranged on the supporting mechanism. A water inlet of the high-pressure water pump communicates with the water tank, and a water outlet of the high-pressure water pump communicates with the water inlet end of the spraying mechanism. The first end of the connecting mechanism is connected with the supporting mechanism, the second end of the connecting mechanism is connected with the spraying mechanism, and the water outlet end of the spraying mechanism is located above the tunnel vault. Manual maintenance is not needed, the maintenance efficiency is high, the maintenance quality is good, and then the strength of the lining vault is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of tunnel construction, and particularly to a curing device for the concrete of the arch crown of an open-cut tunnel. Background Art

[0002] The arch lining structure of the open-cut deep foundation pit railway tunnel is the main stress-bearing part of the support structure, and its own strength plays a crucial role in the structural safety. If dry shrinkage cracks occur on the surface of the arch lining, it will affect the strength of the arch lining. Therefore, it is necessary to regularly cure the arch lining.

[0003] Currently, the concrete of the arch crown is cured by manual watering. However, manual watering not only results in low curing efficiency, but also the curing quality is difficult to guarantee due to the quality awareness of different operators, resulting in insufficient strength of the arch lining of the tunnel. Utility Model Content

[0004] The embodiment of this application provides a curing device for the concrete of the arch crown of an open-cut tunnel, which solves the problems in the prior art that the curing efficiency of the concrete of the arch crown is low, the curing quality is difficult to guarantee, and the strength of the arch lining of the tunnel is insufficient.

[0005] The embodiment of the utility model provides a curing device for the concrete of the arch crown of an open-cut tunnel. The curing device for the concrete of the arch crown of an open-cut tunnel includes a traveling mechanism, a support mechanism, a connecting mechanism, a water tank, a high-pressure water pump, and a spraying mechanism; the traveling mechanism is arranged on the top of the side wall of the tunnel; the support mechanism is arranged on the traveling mechanism; the water tank is arranged on the support mechanism; the water inlet of the high-pressure water pump is communicated with the water tank, and the water outlet of the high-pressure water pump is communicated with the water inlet end of the spraying mechanism; the first end of the connecting mechanism is connected with the support mechanism, the second end of the connecting mechanism is connected with the spraying mechanism, and the water outlet end of the spraying mechanism is located above the arch crown of the tunnel.

[0006] In a possible implementation manner, the connecting mechanism includes a plurality of connecting pieces; the plurality of connecting pieces are arranged at intervals on the support mechanism, the first end of each connecting piece is connected with the support mechanism, and the other end of each connecting piece is connected with the spraying mechanism.

[0007] In a possible implementation manner, the spraying mechanism includes at least two spraying structures; the at least two spraying structures are arranged at intervals along the length direction of the tunnel; each spraying structure is connected with the second end of the connecting mechanism, and the water inlet end of each spraying structure is communicated with the water outlet of the high-pressure water pump.

[0008] In a possible implementation, the spraying structure includes a water delivery pipe, a spraying pipe, and a plurality of atomizing nozzles; the water inlet of the water delivery pipe is communicated with the water outlet of the high-pressure water pump, and the water outlet of the water delivery pipe is communicated with the inner cavity of the spraying pipe; the spraying pipe is connected to the second end of the connecting mechanism; the plurality of atomizing nozzles are arranged on the spraying pipe at intervals along the length direction of the spraying pipe, and each atomizing nozzle is communicated with the inner cavity of the spraying pipe.

[0009] In a possible implementation, the spraying pipe is an arc-shaped pipe; the center of the arc-shaped pipe coincides with the center of the tunnel vault.

[0010] In a possible implementation, the plurality of atomizing nozzles are arranged on the spraying pipe at equal intervals along the length direction of the spraying pipe, and the distance between every two adjacent atomizing nozzles is 45 cm to 55 cm.

[0011] In a possible implementation, the water outlet angle of each atomizing nozzle is adjustable.

[0012] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0013] The embodiments of the present invention provide an open-cut tunnel vault concrete curing device, which includes a traveling mechanism, a supporting mechanism, a connecting mechanism, a water tank, a high-pressure water pump, and a spraying mechanism. The traveling mechanism is arranged on the top of the tunnel side wall. The supporting mechanism is arranged on the traveling mechanism. The water tank is arranged on the supporting mechanism. The water inlet of the high-pressure water pump is communicated with the water tank, and the water outlet of the high-pressure water pump is communicated with the water inlet end of the spraying mechanism. The first end of the connecting mechanism is connected to the supporting mechanism, the second end of the connecting mechanism is connected to the spraying mechanism, and the water outlet end of the spraying mechanism is located above the tunnel vault. When curing the vault concrete, the control system controls the traveling mechanism to travel along the length direction of the tunnel. The traveling mechanism drives the supporting mechanism to move, and the supporting mechanism drives the spraying mechanism to move along the length direction of the tunnel. While the traveling mechanism is moving, the high-pressure water pump is turned on. The high-pressure water pump delivers the water in the water tank to the spraying mechanism and sprays it on the vault concrete through the water outlet end of the spraying mechanism, thereby realizing the curing of the vault concrete. It does not require manual curing, has high curing efficiency and good curing quality, and further ensures the strength of the lining vault. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 This is a schematic diagram of the use of the open-cut tunnel crown concrete curing device provided by the embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of the structure of the open-cut tunnel crown concrete curing device provided by the embodiment of the present application.

[0017] Icon: 1 - traveling mechanism; 2 - supporting mechanism; 3 - connecting mechanism; 31 - connecting piece; 4 - water tank; 5 - high-pressure water pump; 6 - spraying mechanism; 61 - spraying structure; 611 - water delivery pipe; 612 - spraying pipe; 613 - atomizing nozzle. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of 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 thus cannot be understood as a limitation of the present utility model. The terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installation", "connection", "connected" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0020] Such as Figures 1 - 2As shown in the figure, an embodiment of the present utility model provides an open-cut tunnel vault concrete curing device. The open-cut tunnel vault concrete curing device includes a traveling mechanism 1, a support mechanism 2, a connecting mechanism 3, a water tank 4, a high-pressure water pump 5, and a spraying mechanism 6. Specifically, the high-pressure water pump 5 causes the water in the water tank 4 to be sprayed out in a misty state at the water outlet end of the spraying mechanism 6 through high-pressure action, which can not only save water resources, but also enable the spraying mechanism 6 to spray water more evenly on the vault concrete, making the curing of the vault concrete more uniform.

[0021] As Figure 1 shown in the figure, the traveling mechanism 1 is arranged on the top of the tunnel side wall. Specifically, the traveling mechanism 1 is a wheeled traveling mechanism.

[0022] In practical applications, the support mechanism 2 is arranged on the traveling mechanism 1. In practical applications, a track extending along the length direction of the tunnel is fixed on the top of the tunnel side wall. During the curing of the vault concrete, the control system controls the traveling mechanism 1 to travel along the track to achieve a fixed trajectory. Specifically, the control system can be a computer program, a remote control, etc., and the embodiments of the present application do not limit this.

[0023] In practical applications, the support mechanism 2 is a truss. The truss is a triangular truss composed of an upper cross beam, a lower cross beam, and support rods, all made of angle steel with a size of 75mm×75mm. The main cross beam is connected by bolts at the segmented part. In addition, the truss can be composed of multiple truss segments, and adjacent two truss segments are connected by bolts through a connecting plate.

[0024] Continue to refer to Figure 1 shown in the figure, the water tank 4 is arranged on the support mechanism 2. The water inlet of the high-pressure water pump 5 is communicated with the water tank 4, and the water outlet of the high-pressure water pump 5 is communicated with the water inlet end of the spraying mechanism 6. The first end of the connecting mechanism 3 is connected to the support mechanism 2, and the second end of the connecting mechanism 3 is connected to the spraying mechanism 6. The water outlet end of the spraying mechanism 6 is located above the tunnel vault. During the curing of the vault concrete, the control system controls the traveling mechanism 1 to travel along the length direction of the tunnel. The traveling mechanism 1 drives the support mechanism 2 to move, and the support mechanism 2 drives the spraying mechanism 6 to move along the length direction of the tunnel. While the traveling mechanism 1 is moving, the high-pressure water pump 5 is turned on. The high-pressure water pump 5 conveys the water in the water tank 4 to the spraying mechanism 6 and sprays it on the vault concrete through the water outlet end of the spraying mechanism 6, thereby realizing the curing of the vault concrete, eliminating the need for manual curing, with high curing efficiency and good curing quality. In addition, the open-cut tunnel vault concrete curing device of the present application can also be used for tunnel dust reduction.

[0025] The embodiment of the utility model provides a curing device for the concrete of the arch crown of an open-cut tunnel. The curing device for the concrete of the arch crown of the open-cut tunnel comprises a traveling mechanism 1, a supporting mechanism 2, a connecting mechanism 3, a water tank 4, a high-pressure water pump 5 and a spraying mechanism 6. The traveling mechanism 1 is arranged at the top of the side wall of the tunnel. The supporting mechanism 2 is arranged on the traveling mechanism 1. The water tank 4 is arranged on the supporting mechanism 2. The water inlet of the high-pressure water pump 5 is communicated with the water tank 4, and the water outlet of the high-pressure water pump 5 is communicated with the water inlet end of the spraying mechanism 6. The first end of the connecting mechanism 3 is connected with the supporting mechanism 2, and the second end of the connecting mechanism 3 is connected with the spraying mechanism 6. The water outlet end of the spraying mechanism 6 is located above the arch crown of the tunnel. When curing the concrete of the arch crown, the control system controls the traveling mechanism 1 to travel along the length direction of the tunnel. The traveling mechanism 1 drives the supporting mechanism 2 to move, and the movement of the supporting mechanism 2 drives the spraying mechanism 6 to move along the length direction of the tunnel. While the traveling mechanism 1 is moving, the high-pressure water pump 5 is started. The high-pressure water pump 5 conveys the water in the water tank 4 to the spraying mechanism 6 and sprays it on the concrete of the arch crown through the water outlet end of the spraying mechanism 6, so as to realize the curing of the concrete of the arch crown, without manual curing, with high curing efficiency and good curing quality, and further ensure the strength of the lining arch crown.

[0026] Continue to refer to Figure 1 As shown, the connecting mechanism 3 includes a plurality of connecting pieces 31. The plurality of connecting pieces 31 are arranged on the supporting mechanism 2 at intervals. The first end of each connecting piece 31 is connected with the supporting mechanism 2, and the other end of each connecting piece 31 is connected with the spraying mechanism 6. In practical applications, the plurality of connecting pieces 31 can connect the spraying mechanism 6 and the supporting mechanism 2 to ensure the fixing strength of the spraying mechanism 6.

[0027] As Figure 2 shown, the spraying mechanism 6 includes at least two spraying structures 61. The at least two spraying structures 61 are arranged at intervals along the length direction of the tunnel. Each spraying structure 61 is connected with the second end of the connecting mechanism 3, and the water inlet end of each spraying structure 61 is communicated with the water outlet of the high-pressure water pump 5. Specifically, setting at least two spraying structures 61 enables at least two spraying structures 61 to spray water on the concrete of the arch crown simultaneously during the arch crown curing process, so as to improve the curing efficiency and quality of the concrete of the arch crown, and further ensure the strength of the lining arch crown.

[0028] As Figure 1As shown in the figure, the spraying structure 61 includes a water delivery pipe 611, a spraying pipe 612, and a plurality of atomizing nozzles 613. The water inlet of the water delivery pipe 611 is communicated with the water outlet of the high-pressure water pump 5, and the water outlet of the water delivery pipe 611 is communicated with the inner cavity of the spraying pipe 612. The spraying pipe 612 is connected to the second end of the connecting mechanism 3. The plurality of atomizing nozzles 613 are arranged on the spraying pipe 612 at intervals along the length direction of the spraying pipe 612, and each atomizing nozzle 613 is communicated with the inner cavity of the spraying pipe 612. When curing the arch top concrete, the high-pressure water pump 5 is turned on. The high-pressure water pump 5 delivers the water in the water tank 4 to the water delivery pipe 611. The water in the water delivery pipe 611 enters the spraying pipe 612 and is sprayed out from the atomizing nozzles 613 and sprinkles on the arch top concrete, so as to realize the curing of the arch top concrete, without manual watering, with high curing efficiency and good curing quality.

[0029] Continue to refer to Figure 1 As shown in the figure, the spraying pipe 612 is an arc-shaped pipe. The center of the arc-shaped pipe coincides with the center of the tunnel arch top. In practical applications, the spraying pipe 612 is set as an arc-shaped pipe concentric with the tunnel arch top, so that the water sprayed out by the plurality of atomizing nozzles 613 can reach the surface of the arch top concrete at the same time to realize the curing of the arch top concrete, thereby improving the curing quality of the arch top concrete.

[0030] In practical applications, the plurality of atomizing nozzles 613 are arranged on the spraying pipe 612 at equal intervals along the length direction of the spraying pipe 612, and the distance between every two adjacent atomizing nozzles 613 is 45 cm to 55 cm. Arranging the plurality of atomizing nozzles 613 at equal intervals can ensure that the water sprayed out by the plurality of atomizing nozzles 613 evenly falls on the arch top concrete, thereby ensuring the curing quality of the arch top concrete and improving the strength of the lining arch top. Specifically, the distance between every two adjacent atomizing nozzles 613 is preferably 50 cm.

[0031] Specifically, the water outlet angle of each atomizing nozzle 613 is adjustable. In practical applications, the atomizing nozzle 613 is a nozzle with an omnidirectionally adjustable angle, and the spraying surface of the atomizing nozzle 613 is in the form of slanting downward at 45°, so as to ensure complete coverage of the curing surface of the arch top concrete.

[0032] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.

[0033] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting the present application; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.

Claims

1. An open-cut tunnel crown concrete curing device, characterized in that, It includes a traveling mechanism (1), a supporting mechanism (2), a connecting mechanism (3), a water tank (4), a high-pressure water pump (5) and a spraying mechanism (6); The traveling mechanism (1) is arranged on the top of the tunnel side wall; The supporting mechanism (2) is arranged on the traveling mechanism (1); The water tank (4) is arranged on the supporting mechanism (2); The water inlet of the high-pressure water pump (5) is communicated with the water tank (4), and the water outlet of the high-pressure water pump (5) is communicated with the water inlet end of the spraying mechanism (6); The first end of the connecting mechanism (3) is connected to the supporting mechanism (2), the second end of the connecting mechanism (3) is connected to the spraying mechanism (6), and the water outlet end of the spraying mechanism (6) is located above the tunnel vault.

2. The open-cut tunnel crown concrete curing device according to claim 1, wherein, The connecting mechanism (3) includes a plurality of connecting pieces (31); The plurality of connecting pieces (31) are arranged at intervals on the supporting mechanism (2), the first end of each connecting piece (31) is connected to the supporting mechanism (2), and the other end of each connecting piece (31) is connected to the spraying mechanism (6).

3. The open-cut tunnel crown concrete curing device according to claim 1, wherein The spraying mechanism (6) includes at least two spraying structures (61); At least two of the spraying structures (61) are arranged at intervals along the length direction of the tunnel; Each spraying structure (61) is connected to the second end of the connecting mechanism (3), and the water inlet end of each spraying structure (61) is communicated with the water outlet of the high-pressure water pump (5).

4. The open-cut tunnel crown concrete curing device according to claim 3, wherein, The spraying structure (61) includes a water delivery pipe (611), a spraying pipe (612) and a plurality of atomizing nozzles (613); The water inlet of the water delivery pipe (611) is communicated with the water outlet of the high-pressure water pump (5), and the water outlet of the water delivery pipe (611) is communicated with the inner cavity of the spraying pipe (612); The spraying pipe (612) is connected to the second end of the connecting mechanism (3); The plurality of atomizing nozzles (613) are arranged at intervals along the length direction of the spraying pipe (612) on the spraying pipe (612), and each atomizing nozzle (613) is communicated with the inner cavity of the spraying pipe (612).

5. The open-cut tunnel crown concrete curing device according to claim 4, characterized in that, The spraying pipe (612) is an arc-shaped pipe; The center of the arc-shaped pipe coincides with the center of the tunnel vault.

6. The open-cut tunnel crown concrete curing device according to claim 5, wherein, The plurality of atomizing nozzles (613) are arranged at equal intervals along the length direction of the spraying pipe (612) on the spraying pipe (612), and the distance between every two adjacent atomizing nozzles (613) is 45 cm to 55 cm.

7. The open-cut tunnel crown concrete curing device according to claim 4, characterized in that, The water outlet angle of each atomizing nozzle (613) is adjustable.

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