JP2021021279A - Automatic operation device of pulling-out vibrator used for construction of tunnel lining - Google Patents

Abstract

To automatize an operation using a pulling-out vibrator when constructing lining of a tunnel crown portion.SOLUTION: An automatic operation device includes: a vibrator body 10 installed in a tunnel extending direction; a vibrator hose 20 pulling out the vibrator body 10 to a gable side; a fixing wire 30 applying pulling force to the vibrator body 10 in a direction opposite to a pulling-out direction; a fixing device 80 fixing the vibrator body 10 at a pulling-out start position; a rolling-up device 40 rolling up the vibrator hose 20 while pulling up the vibrator body 10; a release device 50 releasing fixation of the fixing wire 30; an operation control device 60 controlling releasing the fixation of the fixing wire 30, pulling-up the vibrator hose 20, and drive of the vibrator body 10 after elapsing a predetermined time from start of the concrete installation. The operation control device 60 controls cleaning the vibrator hose 20 by a cleaning device 70.SELECTED DRAWING: Figure 1

Description

The present invention relates to an automatic operation device for a pull-out vibrator used for constructing a tunnel lining. Specifically, the pull-out vibrator used for constructing the top end of a tunnel lining is pulled out from the start to the end. It relates to a device for automatically operating up to subsequent cleaning.

As a technology for efficient compaction at the top of tunnel lining, a device and method (compacting with a pull-out vibrator) that compacts while pulling out the vibrator installed in the tunnel in advance to the wife side is the mainstream. It has become.

Various techniques related to the pull-out vibrator have been proposed. For example, the technique described in Patent Document 1 (Japanese Unexamined Patent Publication No. 2003-227297) is a centle (mobile type) in advance when constructing a secondary lining concrete. A vibrator is installed between the formwork) and the inner wall surface of the tunnel. A wire extending in the longitudinal direction of the tunnel is connected to the vibrator, and the base end side of the wire is connected to an electric winch. Then, when placing the secondary lining concrete, if the electric winch is driven to wind up the wire while vibrating the vibrator, the placed secondary lining concrete can be compacted. ..

In addition, a ring-type shower is provided in the vicinity of the electric winch, and a wire is inserted inside. Then, when the wire is unwound, the concrete attached to the wire is washed and removed by a ring-type shower.

Japanese Unexamined Patent Publication No. 2003-227297

As described above, the pull-out vibrator is a long hose type, and is fixed in a state where a tensile force is applied by a fixing device via an anchor embedded in the existing concrete. Then, when the vibrator body is pulled out, it is necessary to release the application of the pulling force by this fixing device, and about two people must be engaged in this work. Furthermore, on the wife's side, the work of cleaning (sprinkling) the pulled out vibrator also occurs.

When pulling out the reel-type pull-out vibrator, one person is engaged in the operation of the electric reel, which is a take-up device, and the switch box that controls the drive of the pull-out vibrator, and two people are engaged in cleaning the pull-out vibrator. Since one person is engaged in the concrete compaction work on the gable side and one person is engaged as an assistant for all the work, a total of five workers are required.

In addition, in the work organization when releasing the anchor of the pull-out vibrator, three people are engaged in releasing the fixing of the fixing wire and removing the pull-out vibrator receiving metal fitting, and one person is engaged in the concrete compaction at the top end, and the remaining in the pipe. It is necessary for one person to be engaged in the concrete processing and cleaning work, and a total of five workers are required.

Therefore, the following technological development is required in order to enable one to three workers to perform the lining of the crown. First, an automatic release device for the fixing wire for fixing the pull-out vibrator is required. Secondly, it is necessary to automate the automatic operation of the pull-out vibrator and the winding of the vibrator hose. Thirdly, it is necessary to automate the cleaning device of the pull-out vibrator.

The present invention has been proposed in view of the above circumstances, and an object of the present invention is to provide a technique capable of automating the work using a pull-out vibrator when lining the top of a tunnel. ..

The automatic operation device of the pull-out vibrator used for the construction of the tunnel lining according to the present invention (hereinafter, may be abbreviated as the automatic operation device of the pull-out vibrator) has the following features in order to achieve the above-mentioned object. doing.

That is, the automatic operation device for the pull-out vibrator according to the present invention relates to a device for automatically operating a pull-out vibrator that compacts concrete while pulling out in the tunnel longitudinal direction when lining the tunnel top. .. Specifically, it is characterized by being provided with a device for releasing the fixing wire of the pull-out vibrator, a device for automatically operating the pull-out vibrator and automatically winding the vibrator hose, and a device for automatically cleaning the pull-out vibrator.

The automatic operation device of this withdrawal vibrator is connected to the vibrator main body installed in the tunnel extension direction on the top end of the tunnel lining mold and the rear end side of the vibrator main body to supply power to the vibrator main body and also to supply power to the vibrator main body. A vibrator hose that pulls out the vibrator body to the wife side, a fixing wire that is connected to the tip of the vibrator body and applies a pulling force to the vibrator body in the direction opposite to the pulling direction, and a fixing wire that pulls out the vibrator body at the start position. A fixing device that is fixed to the vibrator, a take-up device that is connected to the vibrator hose, applies a pulling force to the vibrator body in the pulling direction, and winds up the vibrator hose while pulling out the vibrator body, and concrete at the top of the tunnel. After a lapse of a predetermined time from the start of driving, the fixing wire is released by the release device, the vibrator hose is pulled out by the take-up device, and the operation control device that controls the drive of the vibrator body is provided. It is a thing.

Further, in addition to the above-described configuration, it is possible to have a configuration provided with a cleaning device installed between the end of the tunnel and the winding device to clean the vibrator hose. In this case, the operation control device also controls the cleaning of the vibrator hose by the cleaning device.

Further, in addition to the above-described configuration, the fixing device is configured so that the vibrator body is fixed at the pull-out start position by sandwiching the fixing wire, and the vibrator body can be pulled out by releasing the pinching of the fixing wire. Is possible.

Further, in addition to the above-described configuration, the cleaning device is provided on the end side, a nozzle portion for injecting cleaning water by a predetermined length from the start of pulling out the vibrator body, and a vibrator hose provided on the front side of the winding device. It is possible to have a configuration including a ring-shaped cleaning portion that surrounds and injects cleaning water.

According to the automatic operation device of the pull-out vibrator according to the present invention, when lining the top of the tunnel using the pull-out vibrator, the operation of releasing the fixing wire for fixing the pull-out vibrator, the operation of the pull-out vibrator, and the operation of the pull-out vibrator are performed. It is possible to automate the winding operation of the vibrator hose and the cleaning operation of the withdrawal vibrator (vibrator hose).

As a result, it is possible to improve the work efficiency by making the staffing of the workers engaged in the operation of the pull-out vibrator appropriate.

The functional block diagram of the automatic operation apparatus of the pull-out vibrator which concerns on embodiment of this invention. The schematic diagram which shows the installation example of the fixing device and the release device which concerns on embodiment of this invention. The schematic diagram which shows the fixing device which concerns on embodiment of this invention. The schematic diagram which shows an example of the release device which concerns on embodiment of this invention. The schematic diagram which shows another example of the release device which concerns on embodiment of this invention. The schematic diagram which shows an example of the cleaning apparatus which concerns on embodiment of this invention. The schematic diagram which shows another example of the cleaning apparatus which concerns on embodiment of this invention. The explanatory view of the operation control of the pull-out vibrator which concerns on embodiment of this invention.

Hereinafter, the automatic operation device of the pull-out vibrator according to the embodiment of the present invention will be described with reference to the drawings. 1 to 8 show the automatic operation device of the pull-out vibrator according to the embodiment of the present invention, FIG. 1 is a functional block diagram of the automatic operation device of the pull-out vibrator, and FIG. 2 is an installation example of a fixing device and a release device. FIG. 3 is a schematic view showing a fixing device, FIGS. 4 and 5 are schematic views showing a releasing device, FIGS. 6 and 7 are schematic views showing a cleaning device, and FIG. 8 is a schematic diagram of a pull-out vibrator operation control. It is explanatory drawing.

3 (a) is a schematic view showing the entire fixing device, FIG. 3 (b) is a schematic side view of the body, FIG. 3 (c) is a schematic side view of the cam, and FIG. 3 (d) is a fixed shaft. Schematic side view, FIG. 4 (a) is a schematic view showing a fixed state, FIG. 4 (b) is a schematic view showing a released state, FIG. 4 (c) is a schematic cross-sectional view showing a fixed state, and FIG. 5 (a) is. A partial cross-sectional schematic view showing the entire release device, FIG. 5B is a front schematic view of the wire chuck.

<Overview of automatic operation device for pull-out vibrator>
As shown in FIG. 1, the automatic operation device 100 of the pull-out vibrator according to the embodiment of the present invention automatically pulls out the pull-out vibrator while pulling out in the longitudinal direction of the tunnel when lining the top of the tunnel. It is a device for operation, and has a vibrator main body 10, a vibrator hose 20, a fixing wire 30, a winding device 40, a releasing device 50, and an operation control device 60 as main components, and further, a vibrator. A cleaning device 70 for cleaning the hose 20 may be provided.

Further, as shown in FIG. 2, the fixing wire 30 is fixed by the fixing device 80, and the fixing device 80 and the releasing device 50 are connected by the tension wire 90. The example shown in FIG. 2 is an example of the fixing device 80 and the releasing device 50, and as will be described in detail later, the fixing device 80 and the releasing device 50 can be integrally configured. Further, in general, a plurality of pull-out vibrators are installed in the longitudinal direction of the tunnel.

<Vibrator body>
The vibrator main body 10 is a vibrating member installed in the tunnel extension direction on the top end of the tunnel lining form, and in the present embodiment, a pull-out vibrator which is common in compaction of the top end is used. .. The drawn vibrator including the vibrator main body 10 is fixed to the concrete placing start side (or the already constructed side if the tunnel lining has already been constructed) by using the anchor 11 at the start of the pulling. Then, the fixing is released after a lapse of a predetermined time from the start of concrete placement, and the concrete placed at the top end is compacted while being pulled out toward the wife side as the concrete placement progresses.

<Vibrator hose>
The vibrator hose 20 is a hose that is connected to the rear end side of the vibrator body 10 and is used to pull out the vibrator body 10 to the wife side. Inside the vibrator hose 20, a cable for supplying electric power to the vibrator main body 10 and a wire for dealing with the tension when the vibrator main body 10 is pulled out are installed. A power device is connected to the cable.

<Fixed wire>
The fixing wire 30 is a wire connected to the tip end portion of the vibrator main body 10 and for applying a pulling force to the vibrator main body 10 in a direction opposite to the pulling direction. The fixing wire 30 reaches the fixing device 80 via an anchor 11 provided on the existing concrete or a center (form). When the fixing wire 30 is fixed by the fixing device 80, a pulling force is applied to the vibrator main body 10 in the direction opposite to the pulling direction.

<Fixing device>
As shown in FIG. 3, the fixing device 80 is a device for fixing the vibrator main body 10 to the pull-out start position by the fixing wire 30. As shown in FIG. 3, for example, the fixing device 80 is rotatably attached to the body 81 by a body 81 having a wire insertion portion 81a and an open side and a substantially U-shaped cross section, and a rotation shaft 82. It is equipped with a cam 83.

The body 81 is provided with a rotation shaft insertion hole 81b for inserting the rotation shaft. Further, the cam 83 is provided with a rotation shaft insertion hole 83a for inserting the rotation shaft 82 and a wire clip attachment hole 83b for attaching the wire clip 84 connected to the tip of the tension wire 90. A wire clip 84 is attached to the tip of the tension wire 90.

Then, when the fixing wire 30 is inserted through the wire insertion portion 81a of the body 81 and a tensile force is applied to the tension wire 90 to rotate the cam 83, the fixing wire 30 is crimped and fixed by the body 81 and the cam 83. The wire 30 can be fixed. On the other hand, when the tensile force applied to the tension wire 90 is released, the cam 83 rotates in the direction opposite to the crimping direction, the crimping of the fixing wire 30 between the body 81 and the cam 83 is loosened, and the fixing wire 30 is fixed. It can be released.

The fixing device 80 is not limited to the one provided with the above-mentioned members, and may have any configuration as long as the fixing wire 30 can be fixed. For example, in the device configuration shown in FIGS. 4 and 5, the fixing device 80 and the releasing device 50 are configured by the same device. That is, the release device 50 functions as a device for fixing the fixing wire 30, and also functions as a device for releasing the fixing of the fixing wire 30.

<Winling device>
Although not shown in detail, the take-up device 40 is connected to the base end side of the vibrator hose 20, applies a pulling force to the vibrator main body 10 in the pulling direction, and pulls out the vibrator hose 20 while pulling out the vibrator hose 20. It is a device for winding. In this embodiment, the electric reel is used as the take-up device 40.

<Release device>
The release device 50 of the present embodiment is a device that also has the functions of the fixing device 80, and is designed to fix and release the fixing wire 30. Since the fixing device 80 described above is a device for fixing the fixing wire 30 by the body 81 and the cam 83, the releasing device 50 may be configured as a device for releasing the tensile force applied to the cam 83. Good. In this case, as shown in FIG. 2, if the tension wire 90 is fixed in a state where a tensile force is applied to the tension wire 90 connected to the cam 83 of the fixing device 80, the vibrator main body 10 can be fixed at the pull-out start position. The vibrator body 10 can be pulled out by releasing the fixing of the tension wire 90. In this embodiment, two types of release devices (1) 50a and release devices (2) 50b are illustrated.

<Release device (1)>
As shown in FIG. 4, the release device 50a fixes the fixing wire 30 by sandwiching the fixing wire 30 from above and below, and fixes the vibrator main body 10 at the pull-out start position. On the other hand, by releasing the pinching of the fixing wire 30, the vibrator main body 10 can be pulled out.

The release device 50a shown in FIG. 4 includes a wire crimping portion 51 divided into two, and a hydraulic cylinder 52 that applies a crimping force to the wire crimping portion 51 in the direction of crimping the fixed wire 30. Further, the wire crimping portions 51 divided into two are positioned so as to face each other, and sandwiching recesses 53 for sandwiching the fixing wire 30 are provided on the facing surfaces of the wire crimping portions 51, respectively.

Further, in the release device 50a shown in FIG. 4, the fixing wire 30 is fixed by moving the wire crimping portions 51 divided into two by the hydraulic cylinders 52, respectively, but one of the wire crimping portions 51 is fixed. The fixing wire 30 may be fixed by moving only the other wire crimping portion 51 by the hydraulic cylinder 52.

The fixing wire 30 can be fixed by driving the hydraulic cylinder 52 to bring the two-divided wire crimping portion 51 into an approaching state, and driving the hydraulic cylinder 52 to bring the two-divided wire crimping portion 51 into a separated state. By doing so, the fixing of the fixing wire 30 can be released.

<Release device (2)>
The release device 50b includes a hole-in jack as shown in FIG. The hole-in jack includes a wire chuck 54 divided into three parts. The outer peripheral portion of the wire chuck 54 is reduced in diameter toward one end side in a combined state, and is held inside the holding cylinder 55 having an inner diameter that matches the outer diameter of the wire chuck 54.

Then, when the hydraulic cylinder 56 is driven to push the wire chuck 54 into the holding cylinder 55, the inner surface of the holding cylinder 55 presses the outer surface of the wire chuck 54, so that the wire chucks 54 are moved in the approaching direction to each other. Can be done. On the other hand, when the hydraulic cylinder 56 is driven to move the wire chuck 54 in the direction of pulling out from the inside of the holding cylinder 55, the force with which the inner surface of the holding cylinder 55 presses the outer surface of the wire chuck 54 is released, so that the wire chuck The 54s can be moved apart from each other.

That is, the fixing wire 30 can be fixed by driving the hydraulic cylinder 56 to bring the three wire chucks 54 into an approaching state, and driving the hydraulic cylinder 56 to bring the three wire chucks 54 into a separated state. This makes it possible to release the fixing of the fixing wire 30.

<Operation control device>
The operation control device 60 releases the fixing wire 30 by the releasing device 50, pulls out the vibrator hose 20 by the winding device 40, and the vibrator main body after a predetermined time has elapsed from the start of placing concrete at the top of the tunnel. It is a device for controlling the drive of 10. Further, the operation control device 60 of the present embodiment controls the cleaning of the vibrator hose 20 by the cleaning device 70.

Since the operation control device 60 basically needs to have a timer function, a mechanical or electric timer may be used. However, since the operation control device 60 of the present embodiment finely controls the operation of the pull-out vibrator (for example, the control is performed in seconds), it is preferable to configure the operation control device 60 with a computer and its ancillary devices. The operation control and cleaning control of the pull-out vibrator by the operation control device 60 will be described in detail later.

<Washing device>
The cleaning device 70 is installed between the end of the tunnel on the end side (gable plate 110) and the winding device 40, and is a device for cleaning the vibrator hose 20. As shown in FIGS. 6 and 7, the cleaning device 70 of the present embodiment is provided on the end side of the center (form), and is a nozzle portion that injects cleaning water by a predetermined length from the start of drawing out the vibrator main body 10. A ring-shaped cleaning portion 72 provided on the front side (end end side) of the winding device 40 and surrounding the vibrator hose 20 to inject cleaning water is provided. The cleaning device 70 may not only clean the vibrator hose 20, but also the vibrator body 10.

The nozzle portion 71 is attached to a burr receiver 120 provided on the wife side of the center (form), and is adapted to inject cleaning water toward the front of the center (form). The number of nozzles 71 may be one so as to inject cleaning water from the side of the vibrator hose 20, as in the cleaning device (1) 70 shown in FIG. 6, or the cleaning device shown in FIG. 7 ( 2) Like 70, two vibrator hoses 20 may be provided so as to sandwich the vibrator hoses 20 from both sides to inject cleaning water, or three or more may be provided. A washing water pipe 130 is connected to the nozzle portion, and washing water is supplied to the washing water pipe 130 from a washing water pump (not shown). Further, a water supply cock 140 is provided in the middle of the washing water pipe 130.

Although not shown, the ring-shaped cleaning unit 72 is a device for injecting cleaning water from the surroundings toward the vibrator hose 20 inserted inside the tubular cleaning unit main body. The main body of the cleaning unit has an inner diameter through which the vibrator hose 20 can be inserted and in which a plurality of nozzles can be installed. That is, a plurality of nozzles are attached to the inside of the cleaning unit main body toward the center. Although not shown, a washing water pipe is connected to the base end side of the nozzle, and washing water is supplied to the washing water pipe from a washing water pump. In the cleaning device (2) 70 shown in FIG. 7, the ring-shaped cleaning unit 72 is not shown.

The operation control device 60 of the present embodiment controls the release of the fixing wire 30, the pulling out of the vibrator hose 20, the driving of the vibrator main body 10, and the cleaning of the vibrator hose 20, but each control is separate. It may be performed by the control means of. In this case, it is preferable to link each control means.

<Automatic operation method of pull-out vibrator>
Next, the operation control of the pull-out vibrator and the cleaning control of the vibrator hose 20 will be described with reference to FIG. In the present invention, the operation control device 60 of the withdrawal vibrator described above is used to control the operation of the withdrawal vibrator and the cleaning control of the vibrator hose 20. The main component that performs control is an operation control device 60 including a computer and its ancillary devices.

The release device 50 used in the present embodiment, the washing water pump that supplies the washing water to the nozzles (the nozzle part 71 and the ring-shaped washing part 72) that inject the washing water, and the winding device 40 that winds up the vibrator hose 20 are , Use an electrically controllable device. That is, the release device 50, the washing water pump, and the take-up device 40 are devices driven by an electric motor or an electromagnetic valve. As long as the device can be electrically controlled, a device having another configuration may be used.

<Unlocking the pull-out vibrator and driving the vibrator body>
The release of the pull-out vibrator and the drive of the vibrator body 10 are controlled by the operation control device 60. The pull-out vibrator is fixed at the pull-out start position by the fixing device 80 at the start of placing the top concrete. The timer turns on when the placing of the top concrete is started. The operation of turning on the timer may be performed by the worker turning on the timer switch at the same time as placing the concrete, or by detecting the start of placing the concrete and automatically turning it on.

As shown in FIG. 8, when the timer is activated, after a lapse of a predetermined time (for example, after 60 minutes), the release device 50 is operated to release the fixing wire 30 by the fixing device 80, and the vibrator body 10 is pulled out. Make it possible. Then, after a lapse of a predetermined time (for example, 10 seconds) from this state, the vibrator main body 10 is driven for a predetermined time (for example, 10 seconds), and subsequently, the vibrator main body 10 is driven for a predetermined time (for example, 17 seconds). The take-up device 40 is driven to pull out the pull-out vibrator by a predetermined distance (for example, 50 cm).

Then, after a lapse of a predetermined time (for example, 75 minutes later), the vibrator main body 10 is driven and the winding device 40 is driven for a predetermined time (for example, 25 seconds) to pull out the vibrator for a predetermined distance (for example, 125 cm in total). Pull out. Similarly, according to a preset automatic operation plan, the withdrawal vibrator is withdrawn until a predetermined distance (for example, 2 m) is reached.

The reason for automating the pulling out of the pulling vibrator until it reaches a predetermined distance (for example, 2 m) as described above is as follows. That is, when the concrete placement at the top end is completed, the worker does not need to perform the compaction work, so that the pull-out vibrator can be operated and monitored. The operation interval of the pull-out vibrator is about 5 minutes. Therefore, it is not necessary to perform automatic operation after a predetermined distance (for example, 2 m) (for example, when the length of the center (form) is about 10 m, the remaining about 8 m). The only work performed by the worker after the automatic operation is completed is to operate the switch on the control panel.

In a general conventional pull-out vibrator, the vibrator hose 20 is supported by a metal fitting. That is, the vibrator hose 20 is supported from the lower side by a plurality of receiving metal fittings installed so as to project from the center (form) toward the ground side. This receiving metal fitting is appropriately pulled out from the center (form) when compacting concrete with a pull-out vibrator, but when eight receiving metal fittings are used, workers 3 to remove the metal fittings. Assuming that four people are engaged, it takes about 20 minutes.

In the present embodiment, the pull-out vibrator is a long hose type, and is fixed in a state where a tensile force (for example, about 3 KN) is applied by the fixing device 80 via an anchor 11 embedded in the existing concrete. There is. Therefore, in the present embodiment, it is not necessary to use the metal fittings, and no particular problem has occurred in the implementation work carried out by the inventors for several years.

<Cleaning the vibrator hose>
As described above, in the cleaning device 70 according to the present embodiment, as shown in FIG. 6, the nozzle portion 71 is installed at a position about 75 cm from the end plate 110, and the winding device 40 side (the winding device 40 side) from the nozzle portion 71 ( A ring-shaped cleaning portion 72 is installed at a position (about 1.5 m from the end plate 110). Therefore, for a predetermined pull-out distance (while pulling out the vibrator hose 20 by about 2 m / primary pull-out) after the pull-out vibrator is started to operate, the nozzle portion 71 is used for cleaning, and the secondary pull-out is performed after the primary pull-out (vibrator hose). After pulling out 20 by about 1.5 m), cleaning is performed by the ring-shaped cleaning unit 72.

The reason why the cleaning period by the nozzle unit 71 and the cleaning period by the ring-shaped cleaning unit 72 overlap is that when the vibrator hose 20 is pulled out by, for example, 2 m in the primary pulling out, the time until the secondary pulling out is about 30 minutes. This is because it was determined that the vibrator hose 20 could not be reliably cleaned only by the ring-shaped cleaning portion 72 because the mortar remained attached to the hose for 30 minutes for 1.5 m without the nozzle portion 71. As a result, the vibrator hose 20 can be reliably cleaned.

In the present embodiment, an electromagnetic valve is provided in the middle of the cleaning water pipe from the cleaning water pump to the cleaning device 70. Therefore, by controlling the operation control device 60, the injection of the cleaning water by the cleaning device 70 can be controlled by turning on / off the electromagnetic valve in conjunction with the operation (operation) of the winding device 40. Alternatively, the injection of the cleaning water by the cleaning device 70 may be controlled by turning on and off the operation of the cleaning water pump in conjunction with the operation (operation) of the winding device 40 under the control of the operation control device 60.

10 Vibrator body 11 Anchor 20 Vibrator hose 30 Fixed wire 40 Winding device 50 Release device 50a Release device (1)
50b release device (2)
51 Wire crimping part 52 Hydraulic cylinder 53 Sanding recess 54 Wire chuck 55 Holding cylinder 56 Hydraulic cylinder 60 Operation control device 70 Cleaning device (1), Cleaning device (2)
71 Nozzle part 72 Ring-shaped cleaning part 80 Fixing device 81 Body 81a Wire insertion part 81b Rotating shaft insertion hole 82 Rotating shaft 83 Cam 83a Rotating shaft insertion hole 83b Wire clip mounting hole 84 Wire clip 90 Pull wire 100 Automatic operation device 110 Wife plate 120 Burr receiver 130 Washing water pipe 140 Water supply cock

Claims (4)

It is a device for automatically operating a pull-out vibrator that compacts concrete while pulling out in the tunnel longitudinal direction when lining is applied at the top of the tunnel.
The vibrator body installed in the tunnel extension direction on the top of the tunnel lining formwork,
A vibrator hose that is connected to the rear end side of the vibrator body to supply power to the vibrator body and pull out the vibrator body to the wife side.
A fixed wire that is connected to the tip of the vibrator body and applies a pulling force to the vibrator body in the direction opposite to the pulling direction.
A fixing device that fixes the vibrator body to the pull-out start position with a fixing wire,
A winding device that is connected to the vibrator hose, applies a pulling force to the vibrator body in the pulling direction, and winds the vibrator hose while pulling out the vibrator body.
A release device that releases the fixing wire from the fixing device,
After a predetermined time has passed from the start of placing concrete at the top of the tunnel, the fixing wire is released by the release device, the vibrator hose is pulled out by the winding device, and the operation control device that controls the drive of the vibrator body.
An automatic operation device for a pull-out vibrator used for the construction of tunnel lining, which is characterized by being equipped with. Installed between the gable end of the tunnel and the take-up device, equipped with a cleaning device to clean the vibrator hose,
The operation control device controls the cleaning of the vibrator hose by the cleaning device.
The automatic operation device for a pull-out vibrator used for the construction of the tunnel lining according to claim 1. The fixing device fixes the vibrator body at the pull-out start position by sandwiching the fixing wire, and makes it possible to pull out the vibrator body by releasing the pinching of the fixing wire.
The automatic operation device for a pull-out vibrator used for the construction of the tunnel lining according to claim 1 or 2. The cleaning device is provided on the end side and encloses a nozzle portion that injects cleaning water by a predetermined length from the start of pulling out the vibrator body and a vibrator hose provided on the front side of the winding device to inject cleaning water. Ring-shaped cleaning part and
The automatic operation device of the pull-out vibrator used for the construction of the tunnel lining according to claim 2 or 3, wherein the vibrator is provided.

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