CN216974874U - Tunnel lining concrete sprays curing means - Google Patents

Abstract

The utility model discloses a tunnel lining concrete spraying and curing device, and relates to the technical field of concrete curing equipment; the technical scheme is as follows: a tunnel lining concrete spraying maintenance device comprises rigid water spray pipes and two walking platforms, wherein two ends of each rigid water spray pipe are connected with the corresponding walking platforms, a plurality of water spray nozzles are arranged on the outer sides of the rigid water spray pipes at intervals along the length direction of the rigid water spray pipes, and the rigid water spray pipes are arranged at intervals along the advancing direction of the walking platforms; and the first water storage container is arranged on the walking platform and is communicated with the rigid water spraying pipe through a pressure pump, so that the rigid water spraying pipe is supplied with water through the pressure pump to spray the side wall and the top wall of the tunnel. The utility model can uniformly and effectively carry out spray maintenance on the large-size tunnel lining concrete so as to ensure that the strength and the durability of the large-size tunnel lining concrete meet the design requirements.

Description

Tunnel lining concrete sprays curing means

Technical Field

The utility model relates to the technical field of concrete curing equipment, in particular to a tunnel lining concrete spraying curing device.

Background

In the prior art, the tunnel lining concrete needs to be sprayed with concrete, and the water on the surface of the sprayed concrete at the initial solidification stage can be rapidly evaporated, so that the surface of the lining concrete is dehydrated to cause insufficient hydration of the concrete, the phenomena of whitening and cracking on the surface of the initially solidified concrete are caused, and potential safety hazards exist. Therefore, after the lining concrete is poured, spray curing is required to make the strength and durability of the concrete meet the design requirements.

To the tunnel lining concrete of conventional size usually adopt the watering lorry to sprinkle, however to the cross-section big, the high tunnel of crown (like power station diversion tunnel), regular watering lorry is difficult to carry out even, effectual maintenance of spraying, can't cover full concrete surface, leads to the concrete surface to form the crack.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problem that the existing tunnel lining concrete spraying and maintaining device is difficult to uniformly and effectively spray and maintain the lining concrete of a large-size tunnel; the utility model provides a tunnel lining concrete spraying and maintaining device which can uniformly and effectively spray and maintain large-size tunnel lining concrete so as to ensure that the strength and the durability of the large-size tunnel lining concrete meet the design requirements.

The utility model is realized by the following technical scheme:

the utility model provides a tunnel lining concrete spraying maintenance device which comprises rigid water spray pipes and two traveling platforms, wherein two ends of each rigid water spray pipe are connected with the corresponding traveling platforms; and a first water storage container is arranged on the walking platform and is communicated with the rigid water spraying pipe through a pressure pump so as to supply water to the rigid water spraying pipe through the pressure pump to spray the side wall and the top wall of the tunnel.

Before the tunnel lining concrete spraying and maintaining device is used, rigid water spraying pipes are arranged according to the cross section shape of the tunnel, so that two rows of platforms are respectively positioned at two sides of the bottom of the tunnel, the two rigid water spraying pipes extend along the side wall and the top of the tunnel according to a set distance, spraying water is added into a first water storage container, the spraying water in the first water storage container is pressurized into the rigid water spraying pipes through a pressurized water pump and is sprayed out through a water spraying nozzle, the side wall and the top wall of the tunnel are sprayed, and meanwhile, the two rows of walking platforms move along the length direction of the tunnel according to a set moving speed, so that lining concrete to be sprayed is uniformly and effectively sprayed and maintained.

Wherein, the two ends of the two rigid water spray pipes are connected with the corresponding walking platforms to form a stable frame body so as to avoid damaging the rigid water spray pipes when the two walking platforms are asynchronous; the tunnel lining concrete is sprayed by two rigid water spraying pipes simultaneously, so that the uniformity and the comprehensive coverage of spraying can be ensured; and the two ends of the two rigid water spraying pipes are connected with the corresponding traveling platforms, so that a door-shaped structure can be formed, the road of the tunnel is not occupied, the passing of other construction equipment is not influenced, and the construction period can be shortened. Therefore, the utility model can carry out uniform and effective spraying maintenance on the large-size tunnel lining concrete so as to ensure that the strength and the durability of the large-size tunnel lining concrete meet the design requirements.

In an alternative embodiment, a regulating valve is arranged between the pressurizing pump and the rigid water spraying pipe, so that the pressure and the flow of the sprayed water can be regulated through the regulating valve.

In an optional embodiment, the first water storage container is provided with a liquid level switch, and the liquid level switch is electrically connected with the pressure pump, so that the start and stop of the pressure pump are controlled according to the liquid level in the first water storage container, and the damage caused by dry pumping of the pressure pump is avoided.

In an alternative embodiment, the two rigid water spray pipes are connected by a plurality of connecting ribs, so that the two rigid water spray pipes form a frame body.

In an alternative embodiment, a plurality of the connecting ribs are arranged in a staggered mode to ensure the stability of the frame body formed by the two rigid water spraying pipes.

In an alternative embodiment, the connecting ribs are welded to the rigid water jet pipes to further ensure the stability of the frame formed by the two rigid water jet pipes.

In an optional embodiment, a second water storage container is arranged on the other walking platform, one end, far away from the first water storage container, of each of the two rigid water spray pipes is connected in series through a venturi pipe, the water inlet end of one rigid water spray pipe is connected with the water outlet of the booster pump, and the negative pressure section of the venturi pipe is connected with a water conduit which extends to the bottom of the inner cavity of the second water storage container.

In an optional embodiment, the first water storage container and the second water storage container are both open water tanks, so that the first water storage container and the second water storage container can be replenished with shower water timely and quickly.

In an optional embodiment, the water conduit is a flexible water pipe, and the water inlet end of the water conduit is clamped with a counterweight to ensure that the water inlet end of the water conduit is kept at the lowest liquid level in the second water storage container.

In an alternative embodiment, the nozzles of one of said rigid nozzles are staggered with respect to the nozzles of the other of said rigid nozzles to further ensure uniform and full coverage of the spray.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

the utility model provides a tunnel lining concrete spraying and curing device, wherein two ends of a rigid water spray pipe are connected with corresponding walking platforms, the rigid water spray pipe is provided with a plurality of water spray nozzles, two rigid water spray pipes are arranged at intervals along the advancing direction of the walking platforms, a first water storage container is arranged on the walking platforms, the rigid water spray pipes are supplied with water by a pressure pump to spray the side wall and the top wall of the tunnel, the two walking platforms advance along the length direction of the tunnel according to a set advancing speed to uniformly and effectively spray and cure lining concrete to be sprayed, the two ends of the two rigid water spray pipes are connected with the corresponding walking platforms, a stable frame body can be formed, the rigid water spray pipes are prevented from being damaged when the two walking platforms advance, the tunnel lining concrete is sprayed simultaneously through the two rigid water spray pipes, the uniformity and the comprehensive coverage of the spraying can be ensured, therefore, the utility model can carry out uniform and effective spraying maintenance on the large-size tunnel lining concrete so as to ensure that the strength and the durability of the large-size tunnel lining concrete meet the design requirements.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

In the drawings:

FIG. 1 is a front view structural schematic diagram of a tunnel lining concrete spraying maintenance device according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic left side view of a rigid sprinkler pipe according to an embodiment of the present invention;

FIG. 4 is a schematic right-view structural diagram of a rigid sprinkler pipe according to an embodiment of the present invention.

Reference numbers and corresponding part names in the figures:

1-rigid water spraying pipe, 2-walking platform, 3-water spraying nozzle, 4-first water storage container, 5-pressure pump, 6-regulating valve, 7-connecting rib, 8-second water storage container, 9-venturi pipe, 10-water guiding pipe and 11-tunnel.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. The embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In the description of the embodiments of the present application, the terms "central," "upper," "lower," "left," "right," "vertical," "longitudinal," "lateral," "horizontal," "inner," "outer," "front," "rear," "top," "bottom," and the like refer to orientations or positional relationships that are conventionally used in the manufacture of the present application, or that are routinely understood by those of ordinary skill in the art, but are merely used to facilitate the description and to simplify the description and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of the present application.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed", "opened", "mounted", "connected", and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

With reference to fig. 1 to 3, the embodiment provides a tunnel lining concrete spraying maintenance device, which includes a rigid water spray pipe 1 and two traveling platforms 2, two ends of the rigid water spray pipe 1 are connected to the corresponding traveling platforms 2, a plurality of water spray nozzles 3 are arranged at intervals on the outer side of the rigid water spray pipe 1 along the length direction of the rigid water spray pipe 1, and two rigid water spray pipes 1 are arranged at intervals along the traveling direction of the traveling platforms 2; one be equipped with first water storage container 4 on the walking platform 2, first water storage container 4 through force (forcing) pump 5 with rigidity spray pipe 1 intercommunication, in order to pass through force (forcing) pump 5 gives rigidity spray pipe 1 supplies water and sprays the lateral wall and the roof of tunnel.

In detail with reference to fig. 2, a regulating valve 6 is provided between the pressurizing pump 5 and the rigid water jet pipe 1, so that the pressure and flow rate of the water jet are regulated by the regulating valve 6.

Usually, first water storage container 4 is equipped with the liquid level switch, the liquid level switch with force (forcing) pump 5 electricity is connected to in the start-stop of liquid level control force (forcing) pump 5 in the first water storage container 4, avoid force (forcing) pump 5 to take out futilely and cause the damage. The liquid level switch can be a floating ball type liquid level switch with simple structure and reliable action, and can also be an electrode type liquid level switch and the like. In order to prompt the first water storage container 4 in time when water is short, the audible and visual alarm can be electrically connected with the liquid level switch so as to give audible and visual alarm when the liquid level switch is disconnected.

Referring to fig. 3, the two rigid water spraying pipes 1 are connected by a plurality of connecting ribs 7, so that the two rigid water spraying pipes 1 form a frame body. The rigid nozzle 1 is usually made of a steel pipe, for example, a steel pipe having a diameter of 50mm, which is not only easy to process but also ensures sufficient rigidity of the rigid nozzle 1.

Preferably, a plurality of the connecting ribs 7 are arranged in a staggered manner to ensure the stability of the frame body formed by the two rigid water spray pipes 1.

In order to ensure that the connecting rib 7 and the rigid water spraying pipe 1 have sufficient connecting strength, the connecting rib 7 is welded with the rigid water spraying pipe 1 so as to further ensure the stability of the frame body formed by the two rigid water spraying pipes 1.

On the basis, in order to ensure the uniformity and the overall coverage of spraying, the water spray nozzles 3 on one rigid water spray pipe 1 are arranged in a staggered way with the water spray nozzles 3 on the other rigid water spray pipe 1.

For the walking platform 2, a motor is usually adopted to drive the walking wheels to rotate, for example, a motor output shaft is in transmission connection with the walking wheels through a chain wheel or a belt wheel mechanism, and of course, a driving structure with an integrated motor and walking wheels can also be adopted, or a fuel trolley is adopted as the walking platform.

It should be noted that before the tunnel lining concrete sprays maintenance device that this embodiment provided, lay rigid spray pipe 1 according to the cross sectional shape of tunnel for two lines of platforms are located the both sides of tunnel bottom respectively, and two rigid spray pipe 1 all extend along the lateral wall and the top of tunnel according to the distance of setting for, and the distance between rigid spray pipe 1 and the tunnel wall keeps in the settlement within range (30-60 cm usually). That is to say, the section shape of the frame body formed by the two rigid spray pipes 1 is adapted to the section shape of the tunnel, for example, the frame body formed by the two rigid spray pipes 1 of the tunnel with a circular section is a section circle, the frame body formed by the two rigid spray pipes 1 of the tunnel with a vault door-shaped section is a vault door-shaped section, and the frame body formed by the two rigid spray pipes 1 of the tunnel with a square section is a door-shaped section.

When spraying, add the shower water for first water storage container 4, pressurize to the rigidity spray pipe 1 in through the shower water of pressure water pump in with first water storage container 4 to chew 3 blowout by the water spray, thereby spray the lateral wall and the roof of tunnel, advance along the length direction of tunnel according to the speed of advance of settlement through two walking platforms 2 simultaneously, in order to carry out even and effectual maintenance of spraying to the lining concrete that sprays required.

Wherein, the two end parts of the two rigid water spray pipes 1 are connected with the corresponding walking platforms 2, so as to form a stable frame body (the shape of the frame body is matched with the shape of the cross section of the tunnel), thereby avoiding the rigid water spray pipes 1 from being damaged when the two walking platforms 2 are asynchronous; the tunnel lining concrete is sprayed by the two rigid water spraying pipes 1 at the same time, so that the uniformity and the comprehensive coverage of spraying can be ensured; and, two end portions of two rigidity spray pipes 1 link to each other with the walking platform 2 that corresponds, can form door type structure, does not occupy the road of tunnel, does not influence the passing through of other construction equipment, can shorten construction cycle.

To sum up, this embodiment can carry out even and effectual maintenance of spraying to jumbo size tunnel lining concrete to ensure that intensity and the durability of jumbo size tunnel lining concrete satisfy the designing requirement. Of course, the frame body with different specifications can be supported according to the section size of the tunnel, so that the frame body is not only suitable for the spray maintenance of large-size tunnel lining concrete, but also can be used for the spray maintenance of conventional tunnel lining concrete.

Example 2

With reference to fig. 1 and 4, this embodiment provides a tunnel lining concrete sprays curing means, based on the structure and the principle that embodiment 1 recorded, another be equipped with second water container 8 on the walking platform 2, two rigidity spray pipe 1 is kept away from the one end of first water container 4 is established ties through venturi 9, one rigidity spray pipe 1 intake end with the delivery port of force (forcing) pump 5 links to each other, venturi 9 negative pressure section is connected with leading water pipe 10, leading water pipe 10 extends to the bottom of 8 inner chambers of second water container.

Two walking bench 2 go up the branch and are equipped with first water storage container 4 and second water storage container 8, can ensure to have sufficient shower water to improve the duration of the device, avoid adding water repeatedly, and then improve the efficiency of construction that tunnel lining concrete sprays the maintenance. Meanwhile, compared with the storage container arranged on only one walking upper table, the storage containers are arranged on the two walking upper tables, the sufficient spray water can be stored without enlarging the table size of the walking table 2 and the volume of the storage container, and the influence on the walking table 2 and the passing of equipment in the tunnel can be reduced as much as possible.

While one ends of the two rigid water spraying pipes 1 far away from the first water storage container 4 are connected in series through a venturi pipe 9, and the water inlet end of only one rigid water spraying pipe 1 is connected with the water outlet of the booster pump 5, the spray water in the first water storage container 4 is pressurized by the booster pump 5 and then flows through the rigid water spray pipe 1 connected with the booster pump 5, the venturi pipe 9 and the other rigid water spray pipe 1 in sequence and is sprayed out from the two rigid water spray pipes 1, when the water spraying and sprinkling water flows through the reducing section of the Venturi tube 9, a negative pressure is generated, so that the reducing section of the Venturi tube 9 is connected with the water conduit pipe 10, the spray water in the second water storage container 8 can be sucked into the venturi tube 9 and the rigid spray pipe 1 at the rear end of the venturi tube 9, and a pressure pump 5 is not needed to be arranged to suck the spray water in the second water storage container 8, so that the structure of the device can be simplified, the manufacturing cost of the device can be reduced, and the dead weight of the device can be reduced.

Optionally, the first water storage container 4 and the second water storage container 8 are both open water tanks, so that the first water storage container 4 and the second water storage container 8 can be conveniently and rapidly supplemented with shower water in time.

In order to ensure that the water inlet end of the water conduit 10 is kept at the lowest position of the liquid level in the second water storage container 8, the water conduit 10 is a flexible water pipe, and a counterweight is clamped at the water inlet end of the water conduit 10.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. The tunnel lining concrete spraying maintenance device is characterized by comprising a rigid water spraying pipe (1) and two walking platforms (2), wherein two ends of the rigid water spraying pipe (1) are connected with the corresponding walking platforms (2), a plurality of water spraying nozzles (3) are arranged on the outer side of the rigid water spraying pipe (1) at intervals along the length direction of the rigid water spraying pipe (1), and two rigid water spraying pipes (1) are arranged at intervals along the advancing direction of the walking platforms (2);

one be equipped with first water storage container (4) on walking platform (2), first water storage container (4) through force (forcing) pump (5) with rigidity spray pipe (1) intercommunication, with through force (forcing) pump (5) give rigidity spray pipe (1) supplies water and sprays the lateral wall and the roof of tunnel.

2. The tunnel lining concrete spraying maintenance device according to claim 1, characterized in that a regulating valve (6) is arranged between the pressure pump (5) and the rigid water spray pipe (1).

3. The tunnel lining concrete spraying maintenance device according to claim 1, wherein the first water storage container (4) is provided with a liquid level switch, and the liquid level switch is electrically connected with the pressure pump (5).

4. The tunnel lining concrete spraying maintenance device according to any one of claims 1 to 3, wherein two rigid water spraying pipes (1) are connected through a plurality of connecting ribs (7).

5. The tunnel lining concrete spraying maintenance device according to claim 4, wherein a plurality of the connecting ribs (7) are arranged in a staggered manner.

6. The tunnel lining concrete spraying maintenance device according to claim 4, characterized in that the connecting ribs (7) are welded with the rigid water spray pipes (1).

7. The tunnel-lining concrete spraying maintenance device according to any one of claims 1 to 3, wherein a second water storage container (8) is arranged on the other walking platform (2), one ends, far away from the first water storage container (4), of the two rigid water spray pipes (1) are connected in series through venturi pipes (9), the water inlet end of one rigid water spray pipe (1) is connected with the water outlet of the pressure pump (5), a water guide pipe (10) is connected to the negative pressure section of each venturi pipe (9), and the water guide pipe (10) extends to the bottom of the inner cavity of the second water storage container (8).

8. The tunnel lining concrete spraying maintenance device according to claim 7, wherein the first water storage container (4) and the second water storage container (8) are both open water tanks.

9. The tunnel lining concrete spraying maintenance device according to claim 7, wherein the water conduit (10) is a flexible water pipe, and a counterweight is clamped at the water inlet end of the water conduit (10).

10. The tunnel lining concrete spraying maintenance device according to claim 1, characterized in that the water spray nozzles (3) on one of the rigid water spray pipes (1) are staggered with the water spray nozzles (3) on the other rigid water spray pipe (1).

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