JPH06248896A - Piping construction method, and device therefor - Google Patents

Abstract

PURPOSE:To improve work efficiency and enhance safety of work. CONSTITUTION:Beams 310, 350, one end of each beam being connected to a mobile truck 100 and at least two traveling wheels 200 being provided on the other end of each beam parallelly in the longitudinal direction thereof, are inserted into pipes 2 (ductile cast iron pipes) to be installed in the longitudinal direction thereof and the pipes 2 are supported by supporting mechanisms 410, 450 from the inside of the beams. The truck 100 is caused to run to transport the pipes 2 to be installed to the vicinity of the ends of pipes having been installed, and one of the wheels positioned on the side of the forward end of the beam is lowered so as to be brought into the pipe having been installed. Further, the wheel 233 positioned on the side of the rear end of the beam is lifted and thereafter the pipes to be installed are pressed against the pipes having been installed by means of a press mechanism 120.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe construction method for connecting and arranging a plurality of pipes divided in the length direction in the length direction, and a pipe construction apparatus used in the method.

[0002]

2. Description of the Related Art As a conventional underground buried structure, there is one as shown in FIG. That is, this underground buried structure has a ductile cast iron pipe 2 under the shield tunnel 1.
Is laid, and concrete 3 is wound around the ductile cast iron pipe 2.

A conventional construction method for laying the ductile cast iron pipe 2 in the shield tunnel 1 is as follows.

As shown in FIG. 33, the shield tunnel 1
After the construction of the shield tunnel 1, the rail 5 provided on the sleeper 4 used when constructing the shield tunnel 1 is removed, and the rail 7 provided on the sleeper 6 for carrying the ductile cast iron pipe 2 is newly provided. Is newly laid below the rail 5. On this rail 7, a special carriage 8 for transport centering is provided.
Is movably placed, the ductile cast iron pipe 2 is placed on the transport centering special cart 8, and the transport centering special cart 8 is towed and transported by a towing device (not shown).

As shown in FIG. 35, the transport centering special carriage 8 has a frame-shaped frame 10 to which wheels 9 rotating on the rails 7 are attached, and the frame 10
The hydraulic jacks 11 connected to the hydraulic pumps 12 via the flow dividers 13 are provided at the four corners of each. Place the ductile cast iron pipe 2 on these hydraulic jacks 11,
Further, by adjusting the hydraulic pressure to each hydraulic jack 11, the ductile cast iron pipe 2 is centered when the newly conveyed ductile cast iron pipe 2 is connected to the already installed ductile cast iron pipe 2. .

Then, the rail 7 and the transport centering special cart 8 are taken out from under the installed ductile cast iron pipe 2. As shown in FIG. 34, the hydraulic jacks 16 are installed on the sides of the installed ductile cast iron pipe 2 and the hydraulic jacks 16 are extended to install the installed ductile cast iron pipes as shown in FIG. After pulling up one end of 2, the transport centering special cart 8 is pulled out and the rail 7 is removed. Instead, as shown in FIG. 37, the tube receiving stand 17 is inserted into the lower part of the ductile cast iron pipe 2.

[0007]

However, the conventional method has the following problems.

That is, because of the installation height of the ductile cast iron pipe 2 and the like, the width of the rail 7 is set to the ductile cast iron pipe 2 to be installed.
The diameter of the ductile cast iron pipe 2 is considerably smaller than the diameter of the rail, and the transporting of the ductile cast iron pipe 2 considerably larger than the width of the rail 7 by the four-point-supporting transport centering special cart 8 poses a problem of being extremely unstable and dangerous.

Further, the centering work of the ductile cast iron pipe 2 to be installed must be performed by the four hydraulic jacks 11 provided on the special carriage 8 for carrying centering. Therefore, it takes a lot of time to adjust and the work efficiency is extremely poor.
There is a problem that it may not be possible to perform perfect centering adjustment. In particular, it is very difficult to perform centering adjustment in a curved portion, and as shown in FIG. 37, a manual jack or a lever block 19 must be used, which requires a long adjustment time and is dangerous. There is.

Further, after inserting the ductile cast iron pipe 2 to be installed into the ductile cast iron pipe 2 already installed, one end of the ductile cast iron pipe 2 is lifted by the hydraulic jack 16, and then the transport centering special cart 8 is pulled out. The rail 7 is removed and the pipe cradle 17 is inserted, but this work is also extremely dangerous, and
When the installation height of the ductile cast iron pipe 2 is low, the insertion amount of the ductile cast iron pipe 2 may need to be reduced to raise the end of the ductile cast iron pipe 2 significantly, which also poses a danger. Occurs.

Further, the ductile cast iron pipe 2 is attached to the pipe receiving stand 17
After placing it on the rack, adjust the position of the end of the ductile cast iron pipe 2 using a jack or a lever block, and then use a camber to prevent the fall, but it takes a very long time to adjust, and There is a problem that it is dangerous.

Further, there is a problem that extra work such as laying and removal of the rail 7 is required, which is also a cause of prolonging the construction period.

The present invention has been made in view of the above circumstances, and provides a pipe construction method and a pipe construction apparatus used for the method, which can improve work efficiency and work safety. The purpose is to provide.

[0014]

The pipe construction method according to claim 1 of the present invention is a pipe construction method in which a plurality of pipes divided in the length direction are connected and arranged in the length direction. A beam having one end attached to the other end and at least two sets of traveling wheels arranged side by side in the lengthwise direction, is inserted in the lengthwise direction of the pipe to be installed to support the pipe from the inside from the beam, The self-propelled carriage is caused to travel to convey the pipe to be installed to the vicinity of the end of the pipe already installed, and then the traveling wheel located on the tip side of the beam among the traveling wheels is lowered. The traveling wheel is landed in the already installed pipe, and further, the traveling wheel positioned on the rear end side of the beam among the traveling wheels is raised, and thereafter, the pipe to be installed is already arranged in the pipe. And push it toward It is characterized in.

The pipe construction apparatus according to claim 2 of the present invention is
In a pipe construction apparatus in which a plurality of pipes divided in the length direction are connected to each other in the length direction and arranged, one end of the self-propelled carriage is attached to the self-propelled carriage, and the other end of the self-propelled carriage is lined up in the length direction for at least 2 A beam provided with a pair of traveling wheels, a support mechanism provided on the beam for supporting the pipe to be installed from the inside, and a pipe to be installed supported by this support mechanism is pressed toward the already installed pipe. A pressing mechanism for moving and a traveling position of the traveling wheel located on the tip end side of the beam when the self-propelled carriage is traveling to convey the piping to be installed to the vicinity of the end of the already installed piping. A control means for lowering the wheel to land the traveling wheel in the already installed pipe, and further for raising the traveling wheel located on the rear end side of the beam among the traveling wheels. To.

The pipe construction apparatus according to claim 3 of the present invention is
The pipe construction apparatus according to claim 2, wherein the beam comprises a fixed beam member attached to the self-propelled carriage, and a slide beam member provided to the fixed beam member so as to be movable back and forth in the length direction thereof. The support mechanism is provided on the base end side of the fixed beam member and the tip end side of the slide beam member.

The pipe construction apparatus according to claim 4 of the present invention is
The pipe construction apparatus according to claim 2 or 3, wherein the support mechanism is provided so as to be movable in the length direction of the beam, and is also provided so as to be fixed at a predetermined position in the length direction of the beam. Characterized by

The pipe construction apparatus according to claim 5 of the present invention is
In the pipe construction apparatus according to any one of claims 2 to 4, when the support mechanism presses the pipe by the pressing mechanism, the fixing state with the beam is released and the pipe is pressed together with the pressed pipe. It is characterized in that it is attached so as to be movable in the length direction.

The pipe construction apparatus according to claim 6 of the present invention is
The pipe construction apparatus according to any one of claims 2 to 5, wherein the beam is provided so as to be movable vertically and horizontally with respect to the traveling carriage.

The pipe construction apparatus according to claim 7 of the present invention is
The pipe construction apparatus according to any one of claims 2 to 6, wherein the support mechanism is provided so as to be movable in a direction intersecting the length direction of the beam.

[0021]

According to the pipe construction method of the first aspect of the present invention, since the pipe is supported by the beam from the inside, the pipe can be stably supported and transported, and the safety is dramatically improved. It becomes possible. Further, when the self-propelled carriage is run to convey the pipe to be installed to the vicinity of the end of the pipe already installed, the traveling wheel located on the tip side of the beam among the traveling wheels is lowered. Since the traveling wheels are landed in the already installed pipe and the traveling wheels located on the rear end side of the beam among the traveling wheels are raised, the traveling wheels are arranged in the length direction of the beam. It is possible to reliably and stably ride the two sets of traveling wheels on the already installed pipe.

According to the pipe construction apparatus of the second aspect of the present invention, one end is attached to the self-propelled carriage, and the other end is provided with a beam provided with at least two sets of traveling wheels arranged in the longitudinal direction. This pipe is inserted in the length direction of the pipe to be supported from the inside by the beam by the support mechanism, and the self-propelled carriage is run to convey the pipe to be installed to the vicinity of the end of the pipe already installed, Next, by the control means, one of the traveling wheels located on the tip side of the beam is lowered, and the traveling wheel is landed in the already installed pipe. The traveling wheels located on the rear end side of the
After that, the pipe to be installed is pressed and moved toward the pipe already arranged. In this way, since the pipe is supported by the beam from the inside, the pipe can be stably supported and transported, and the safety can be dramatically improved. Further, when the self-propelled carriage is run to convey the pipe to be installed to the vicinity of the end of the pipe already installed, the traveling wheel located on the tip side of the beam among the traveling wheels is lowered. Since the traveling wheels are landed in the already installed pipe and the traveling wheels located on the rear end side of the beam among the traveling wheels are raised, the traveling wheels are arranged in the length direction of the beam. It is possible to reliably and stably ride the two sets of traveling wheels on the already installed pipe.

According to the pipe construction apparatus of the third aspect of the present invention, the slide beam member is moved forward and backward with respect to the fixed beam member, and the pipe is supported by the support mechanism. in this way,
The spacing of the support mechanism can be adjusted by advancing and retracting the slide beam material, and it becomes possible to support pipes of various lengths, and the versatility of the device can be enhanced.

According to the pipe construction apparatus of the fourth aspect of the present invention, the pipes of various lengths can be supported by moving the support mechanism in the length direction of the beam and fixing it at a predetermined position. It becomes possible and the versatility of the apparatus can be improved.

According to the pipe construction apparatus of the fifth aspect of the present invention, when the pipe is pressed by the pressing mechanism, the fixing state of the support mechanism with the beam is released, and the support mechanism causes the length of the beam together with the pipe. Since it moves in the vertical direction, the relative movement between the pipe and the support mechanism is extremely reduced, and the support mechanism prevents damage to the inner surface of the pipe.

According to the pipe construction apparatus of the sixth aspect of the present invention, by moving the pipe supported by the support mechanism in the vertical or horizontal direction, it is possible to perform centering adjustment, angle adjustment, or pipe adjustment of the supported pipe. Positioning of the ends can be performed quickly and reliably, and work efficiency can be dramatically improved.

According to the pipe construction apparatus of the seventh aspect of the present invention, the pipe supported by the support mechanism is moved in the direction intersecting the length direction of the beam to adjust the centering of the supported pipe. The angle adjustment and the positioning of the end of the pipe can be performed quickly and reliably, and work efficiency can be dramatically improved.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A pipe construction apparatus according to an embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the piping installation device is a self-propelled truck (battery-type forklift truck in the figure).
Equipped with 100. In front of this self-propelled carriage 100,
A column 112 is fixed, and a moving member 111 is attached to the column 112 so as to be vertically movable. The moving member 111 is movable in the horizontal direction.
13, a frame 114 is fixed to the moving member 113, as shown in FIG. A pin joint 320 is formed on the frame 114, and the beam 300 is provided on the pin joint 320.
It is attached so as to be swingable around 20.

As shown in FIGS. 6 and 7, the beam 300 includes a fixed beam member 310 attached to the pin joint 320 and a slide attached to the fixed beam member 310 so as to be movable back and forth in the longitudinal direction thereof. It is composed of a beam material 350. The fixed beam member 310 has a ladder shape in which two beam members 311 extending in the length direction are connected by a connecting member 312 orthogonal to the length direction.
The slide beam member 350 includes a bracket 35 in which two beam members 351 extending in the length direction are orthogonal to the length direction.
2, 353 and the connecting members 354, 355 are connected to form a ladder shape. Then, the slide beam member 35
One end of 0 is inserted between the beam members 311 of the fixed beam member 310, and a hydraulic cylinder 340 for advancing and retracting the slide beam member 350 is inserted between the connecting member 312 and the connecting member 354.

Brackets 352, 3 attached to one end of the beam member 351 of the slide beam member 350.
As shown in FIG. 1 and FIG.
The traveling wheels 200 are provided side by side in the lengthwise direction of No. 5. The traveling wheel 200 includes a wheel device 210 attached to the bracket 352 and the bracket 353.
And a wheel device 250 attached to the.

In the wheel device 210, as shown in FIGS. 8 to 11, a columnar leg member 230 is inserted into a bracket 352 so as to be vertically movable.
A lid member 231 is attached to the upper end of the
1 and the beam member 351, a hydraulic cylinder 220 for vertically moving the leg member 230 is attached. A plurality of wheels 233 are rotatably attached to the lower ends of the leg members 230 via attachment members 232. Unlike the conventional wheels 233, these wheels 233 are made of specially shaped tires. In addition, the beam member 351
A hydraulic cylinder 240 is attached along the length direction of the hydraulic cylinder 240. The hydraulic cylinder 240 is connected to the leg member 230, and by driving the hydraulic cylinder 240, as shown by a chain double-dashed line in FIG. The leg member 230
The mounting member 232 fixed to the above can be rotated for steering.

In the wheel device 250, as shown in FIGS. 12 to 15, a columnar leg member 260 is inserted into a bracket 353 so as to be vertically movable.
A lid member 261 is attached to the upper end of the
A hydraulic cylinder 270 for vertically moving the leg member 260 is mounted between the beam member 361 and the beam member 351. A plurality of wheels 263 are rotatably attached to the lower ends of the leg members 260 via attachment members 262. Like the wheels 233, these wheels 263 are made of specially shaped tires. Further, a hydraulic cylinder 270 is attached along the length direction of the beam member 351, the hydraulic cylinder 270 is connected to the leg member 260, and by driving the hydraulic cylinder 270, in FIG. As shown by the chain double-dashed line, the attachment member 262 fixed to the leg member 260 can be rotated for steering.

Further, when the ductile cast iron pipe 2 to be installed by running the self-propelled carriage 100 is transported to the vicinity of the end of the ductile cast iron pipe 2 already installed, it is positioned at the tip end side of the slide beam member 350. The traveling wheel 263 is lowered and the traveling wheel 263 is already installed.
Control means (not shown) is provided for landing inside and further for raising the traveling wheels 233 located on the rear end side of the slide beam material 350.

On the outer surface of the lid members 231, 261
A spring type detection device 280 for detecting the contact between the ductile cast iron pipe 2 and the lid members 231 and 261 is attached, and when these contact with the ductile cast iron pipe 2, an alarm is emitted to destroy the device and the ductile. The cast iron pipe 2 is prevented from being damaged.

Beam member 31 of the fixed beam member 310
1 and the beam member 53 of the slide beam member 350,
As shown in FIG. 16, support mechanisms 410 and 450 for supporting the ductile cast iron pipe 2 from the inside are attached.

As shown in FIG. 18, the support mechanism 410 includes a frame 42 having an upper portion 424 formed in an inverted V shape.
A roller 421 that is in sliding contact with the side surface of the beam member 311 via a mounting member 422 is rotatably provided in the lower portion 425 of the frame 0. By rotating this roller 421, the frame 420 can be moved along the beam member 311. Has become. Further, a hydraulic cylinder 423 is vertically attached to the lower end of the frame 420 so that its cylinder rod can project toward the upper end of the beam member 311. As a result, the frame 420 can be attached to a predetermined position with a predetermined pressing force. On the lower portion 425 of the frame 420,
An upper portion 424 of the frame is movably attached in a direction orthogonal to the length direction of the beam member 311, and a hydraulic cylinder 426 for moving the upper portion 242 is interposed between the upper portion 242 and the lower portion 245. ing. Also,
A hydraulic cylinder 427 is mounted inside an inverted C-shaped upper portion 424 of the frame 420. At the tip of the piston rod 427 of the hydraulic cylinder 427,
A roller 429 that is in contact with the inner surface of the ductile cast iron pipe 2 is attached via a mounting member 428.

The support mechanism 450 is the support mechanism 41.
It has the same structure as 0. That is, a roller 461 which is in sliding contact with the side surface of the beam member 351 via a mounting member (not shown) is rotatably provided at the lower portion of a frame 460 having an inverted C-shape.
By rotating 1 the frame 460 can be moved along the beam member 351. Also, a hydraulic cylinder 463 is vertically installed at the lower end of the frame 460.
However, the cylinder rod is attached so as to project toward the upper end of the beam member 351. Thereby, the frame 460 can be attached to a predetermined position with a predetermined pressing force. An upper part of the frame is movably attached to a lower part of the frame 460 in a direction orthogonal to a length direction of the beam member 351, and a hydraulic cylinder for moving the upper part is provided between the upper part and the lower part. (Not shown) is interposed.
Further, a hydraulic cylinder (not shown) is attached inside the inverted C-shaped upper portion of the frame 460.
A roller 469 that is in contact with the inner surface of the ductile cast iron pipe 2 is attached to the tip of the piston rod of this hydraulic cylinder via a mounting member 468.

A hydraulic cylinder (pressing mechanism) 120 for pressing the ductile cast iron pipe 2 is provided at each of both ends of the moving frame 114, as will be described later. The cylinder portion 121 of the hydraulic cylinder 120 is fixed to the moving frame 114, and the piston rod 122 of the hydraulic cylinder 120 is fixed to the supporting mechanisms 410 and 450.
It is provided at a position facing the end surface of the ductile cast iron pipe 2 supported by. Further, a bending arm portion 130 is formed on the side of the portion where the hydraulic cylinder 120 is attached.

Between the wheels 263 of the wheel device 250,
As shown in FIGS. 20 to 22, the hydraulic cylinder 24 is moved so that the wheels 263 travel in the center of the invert.
Wheel position detecting device 600 for giving drive signal to 0,270
Is provided. That is, the bracket 640 is attached to the attachment member 232 via the attachment rod 610, and the bracket 620 is attached to the bracket 640 by being biased downward in the vertical direction by a spring (not shown). A roller 630 is attached below the. Further, a sensor 650 that detects a flat bar 660 installed in the length direction of the invert is provided on the lower surface of the bracket 620. Here, five sensors 650 are provided, one of them is provided at the center of the bracket 620, and four of the latter are provided two at a front end and a rear end of the bracket 620. The intervals of the sensors 650 provided at these front and rear ends are made different. This is because the narrowly arranged sensor 650 detects a small amount of deviation from the flat bar 660 and the widely arranged sensor 65.
This is for detecting a large deviation from the flat bar 660 by 0 and driving the hydraulic cylinders 240 and 270 largely.

Further, a television camera (not shown) for monitoring the movement of the wheel devices 210 and 250 at the time of receiving and inserting the ductile cast iron pipe 2 is provided. As a result, it is possible to operate the driver's seat while watching the movements of the wheel devices 210 and 250, and it is possible to improve operability.

A pipe receiving device 700 is provided on the floor surface directly below the shaft for carrying the ductile cast iron pipe 2 into the invert. In this pipe receiving device 700, as shown in FIG. 23, a hydraulic cylinder 710 is vertically provided in a pit 720 formed below the floor surface, and a piston rod 711 of this hydraulic cylinder 710 is provided outside the hydraulic cylinder 710. An upper end portion of a cylindrical mounting member 740 arranged so as to cover is connected. The movable floor plate 730 is fixed to the upper end of the mounting member 740, and by driving the hydraulic cylinder 710, the movable floor plate 730 can be projected further upward from the height of the floor surface of the invert. There is. Further, a reinforcing beam 750 is fixed to the lower end of the mounting member 740, and a hydraulic cylinder 770 is arranged obliquely upward on the beam 750, and a piston rod 771 of the hydraulic cylinder 770 is provided with A standing member 760 formed on the movable floor plate 730 is connected. The pair of upright members 760 is erected by driving the hydraulic cylinder 770 to extend, and is brought into contact with the side surface of the ductile cast iron pipe 2 carried into the shaft in a V-shape to bring the ductile cast iron pipe 2 to a predetermined position. It is designed to be positioned.

Next, the operation of the pipe construction apparatus of this embodiment will be described, and at the same time, the pipe construction method of one embodiment of the present invention will be described.

First, as shown in FIG. 24, the ductile cast iron pipe 2 is hung by the crane 800 and carried into the vertical shaft. Next, the hydraulic cylinder 710 of the pipe receiving device 700 is driven to raise the movable floor plate 730, and further the hydraulic cylinder 770 is driven to raise the standing member 760. In this way, the ductile cast iron pipe 2 is suspended to a certain extent in the vertical shaft (in this embodiment, about 5 on the movable floor 730).
0 cm) and then from the bottom, the ductile cast iron pipe 2
Therefore, it is possible to eliminate the impact when lowering the ductile cast iron pipe 2 onto the movable floor plate 730. Further, the standing member 760 provided on the movable floor plate 730 is erected and brought into contact with the outer surface of the ductile cast iron pipe 2, thereby lowering the ductile cast iron pipe 2
Even if the core is slightly deviated from the prescribed position, it is efficient because it is positioned at the prescribed position by the pair of upright members 760 and it is not necessary to force the position of the ductile cast iron pipe 2 manually.

The pipe construction device is arranged in the axial direction of the ductile cast iron pipe 2 thus positioned by the pipe receiving device 700. Next, as shown in FIG. 25, the hydraulic cylinder 340 is driven to drive the slide beam member 3
Advance 50. At this time, the wheel device 250 is attached to the inner surface of the ductile cast iron pipe 2 located on the raised movable floor plate 730.
The hydraulic cylinder 2 in order to ride the wheels 263 of the
70 is contracted to raise the wheels 263. Further, the wheel device 2 also located behind the wheel device 250.
The wheel 233 of 10 is driven by reducing the hydraulic cylinder 220 to raise it.

Then, the hydraulic cylinder 340 is further driven to drive the wheel devices 210 and 250 as shown in FIG.
Is inserted into the ductile iron pipe 2. Here, when the wheel devices 210, 250 enter a predetermined depth, the driving of the hydraulic cylinder 340 is stopped, and thereafter, the wheel devices 210, 250 are moved inside the ductile cast iron pipe 2 by the forward movement of the self-propelled carriage 100. Insert it. And the wheel device 2
When 10, 250 approaches the end portion of the ductile cast iron pipe 2, the wheel device 25 is moved from the inner surface of the ductile cast iron pipe 2.
In order to lower the wheel 263 of 0, the hydraulic cylinder 270 is extended and driven to lower the wheel 263. Further, the wheels 233 of the wheel device 210, which are also located behind the wheel device 250, are driven to extend and lower the hydraulic cylinder 220.

Next, the hydraulic cylinders 427 of the support mechanisms 410 and 450 are extended and driven to raise the rollers 429 and 469 to bring them into contact with the inner surface of the ductile iron pipe 2. Next, the hydraulic cylinder 71 of the pipe receiving device 700.
0 is reduced and driven to lower the movable floor plate 730 to position the movable floor surface 730 on the same plane as the floor surface. As a result, the ductile cast iron pipe 2 is supported by the fixed beam member 310 and the slide beam member 350 via the support mechanisms 410 and 450.

Next, as shown in FIG. 27, the self-propelled carriage 10
0 is self-propelled forward and the ductile cast iron pipe 2 is conveyed.
At this time, as described above, since the movable floor plate 730 is positioned on the same plane as the floor surface, the self-propelled carriage 100 can smoothly travel forward without hindering the traveling thereof.

In this way, the ductile cast iron pipe 2 to be arranged by self-propelling is conveyed to the vicinity of the end of the already arranged ductile cast iron pipe 2. Then, as shown in FIG. 28, in order to ride the wheels 263 of the wheel device 250 on the inner surface of the already arranged ductile cast iron pipe 2, the hydraulic cylinder 270 is reduced and driven to raise the wheels 263. Next, the hydraulic cylinder 270 is extendedly driven to land the wheel 263 on the inner surface of the ductile cast iron pipe 2 which is already arranged.

Further, as shown in FIG. 29, the wheel 23 of the wheel device 210, which is also located behind the wheel device 250, is used.
3 is driven by reducing the hydraulic cylinder 220 to raise it. In this way, by separately driving the wheel devices 210 and 250 arranged in front and rear, the wheel devices 210 and 250 are smoothly supported on the inner surface of the already arranged ductile iron pipe 2 while supporting the ductile iron pipe 2. Can be ridden.

Further, in the state shown in FIGS. 28 and 29, the hydraulic cylinder 426 of the support mechanism 410, 450 is driven to move the ductile cast iron pipe 2 supported by the support mechanism 410, 450 in the horizontal direction and already installed. The ductile cast iron pipe 2 and the ductile cast iron pipe 2 to be installed are centered. Further, the hydraulic cylinders 4 of the support mechanisms 410 and 450
27 is extended or reduced to drive the rollers 429, 46.
The ductile cast iron pipe 2 to be installed is also centered by moving 9 up and down. Further, the ductile cast iron pipe 2 to be installed is also centered by driving a slide mechanism provided in the self-propelled carriage 100.

Next, as shown in FIG. 30, the conveyed ductile cast iron pipe 2 is pushed into the end portion of the already installed ductile cast iron pipe 2. That is, the hydraulic cylinder 120 is driven to extend and the end of the ductile cast iron pipe 2 conveyed by the end of the piston rod 122 is pressed at two left and right positions to push in the ductile cast iron pipe 2. At this time, by finely controlling the pressing amount of the left and right hydraulic cylinders 120, the ductile cast iron pipe 2 can be pushed concentrically with the already installed ductile cast iron pipe 2. Also,
When the centering according to FIGS. 28 and 29 is insufficient, the slide mechanism provided on the self-propelled carriage 100 is driven to center the ductile cast iron pipe 2 to be installed.

As described above, when the ductile cast iron pipe 2 is pressed, this pressing force acts on the support mechanisms 410 and 450 via the ductile cast iron pipe 2. Here, the support mechanism 41
Since 0 and 450 are connected to the beam members 311 and 351 via hydraulic cylinders 423 and 463, when the pressing force acting on the support mechanisms 410 and 450 exceeds the pressing force by the hydraulic cylinders 423 and 463, these Beam members 311 and 35 by hydraulic cylinders 423 and 463 of
The connection with 1 is broken, and the support mechanisms 410 and 450 move in the length direction of the beam members 311 and 351. Normally, the pressing force of the hydraulic cylinders 423 and 463 is set to be considerably smaller than the pressing force for pressing the ductile cast iron pipe 2, so that when the ductile cast iron pipe 2 is pressed, the support mechanism 4 is pressed.
10,450 will move along with the ductile cast iron pipe 2 in the length direction of the beam members 311 and 351. That is, when the ductile cast iron pipe 2 is pushed in, the relative movement between the ductile cast iron pipe 2 and the support mechanisms 410, 450 is suppressed as much as possible, and the support mechanisms 410, 450 rub against the ductile cast iron pipe 2 to cause the ductile cast iron pipe 2 to move. The inner surface is prevented from being damaged.

As shown in FIG. 31, the ductile cast iron pipe 2
After the installation, the hydraulic cylinders 427 of the support mechanisms 410 and 450 are expanded and contracted to move the rollers 429 and 469 downward to release the support of the ductile iron pipe 2. Next, the self-propelled carriage 100 is retracted to pull out the beam 300 from the ductile iron pipe 2. Then, the wheel device 210,
When 250 reaches near the end of the ductile cast iron pipe 2, the wheels 233 of the wheel device 210 are moved to the hydraulic cylinder 22.
0 is extended and driven to descend, and the wheel 233 is landed on the floor surface. Next, the hydraulic cylinder 270 is driven to extend and the wheels 263 are lowered to land the wheels 263 on the floor. After that, the ductile cast iron pipes 2 are sequentially connected and arranged by returning to the state shown in FIG. 24 and repeating the above steps.

The hydraulic cylinders 420 and 27 provided in the wheel devices 210 and 250 are arranged so that the flat bar 660 is detected by the sensor 650 of the wheel position detecting device 600 and the centers of the left and right wheels run along the center of the flat bar 660.
Drive 0 to steer automatically. As a result, stable traveling can be performed even if the transport system in which the traveling vehicle 100 pushes from the rear is adopted.

Since the movement of the wheels 233 and 263 of the wheel devices 210 and 250 at the time of receiving and inserting the ductile cast iron pipe 2 is extremely important, these wheels 23
Provided with a TV camera for imaging 3,263,
It is also possible to provide a monitor on the driver's seat for displaying an image by the television camera. As a result, the device can be operated from the driver's seat while looking at the monitor, and the number of operating personnel can be reduced and the work can be efficiently performed.

Leg members 220 of the wheel devices 210, 250,
Since a spring type detector is attached to the upper portion of 260, when the wheel devices 210 and 250 are inserted into the inside of the ductile iron pipe 2, when the leg members 220 and 260 come into contact with the ductile iron pipe 2. An alarm can be issued and the device can be shut down based on this alarm. As a result, the ductile cast iron pipe 2 and the leg members 220, 2
It is possible to prevent the device from colliding with and destroying the device.

According to the piping construction apparatus of the present embodiment, it is possible to semi-automatically perform from the insertion start of the ductile cast iron pipe 2 to the centering, the angle adjustment, the positioning, and the fall prevention by the camber. Moreover, these operations could be performed in an extremely short time of about 2 minutes. As a result, according to the above-mentioned conventional construction method, only the laying of the ductile cast iron pipe 2 is carried out for 5 to 6
Although it was possible to make only about this number, it was possible to lay 8 to 10 pieces per day by using the piping construction apparatus of this example.

A material stand covering the support mechanisms 410 and 450 of the pipe construction apparatus of this embodiment was manufactured, and scaffold materials, concrete pipes, reinforcing bars, etc. were carried by this material stand. At this time, by raising the material platform at the end of the ductile cast iron pipe 2 to make it at the same height as or slightly higher than the work passage on the ductile cast iron pipe 2, it becomes easy to receive and transport the material on the ductile cast iron pipe 2. Preferably. In this way, by providing the material platform, it is not necessary to use a separate flat carriage, and it is possible to eliminate the work of lifting the material and the like to the upper portion of the ductile cast iron pipe 2.

Further, in this embodiment, since the battery-type forklift was modified and used as the traveling carriage 100, the device itself became large, but it is equivalent to the ductile cast iron pipe 2 to be installed by developing a dedicated drive device. Alternatively, it can be smaller. By doing so, it can be applied even when the difference between the inner diameter of the primary lining and the inner diameter of the ductile cast iron pipe is small.

Further, in the above-mentioned embodiment, the case of installing the ductile cast iron pipe has been described as an example, but the present invention is not limited to the ductile cast iron pipe, and it can be used for installing a fume pipe, a steel pipe and a FRP pipe.

Further, although tubular pipes are constructed in the above-mentioned embodiment, the present invention can be applied to the case where an underground buried object having a U-shaped cross section is arranged, for example.

Further, although the case where the ductile cast iron pipe 2 is installed in the tunnel has been described in the above embodiment, the present invention can be applied not only in the tunnel but also when it is difficult to use the hoist on the ground.

[0064]

As described above, according to the first aspect of the present invention.
The piping construction method described is a piping construction method in which a plurality of pipes divided in the lengthwise direction are connected to each other in the lengthwise direction and arranged, and at least one end is attached to the self-propelled carriage and the other end is arranged in the lengthwise direction. The beam provided with two sets of traveling wheels is inserted in the length direction of the pipe to be installed, the pipe is supported from the inside by the beam, and the self-propelled carriage is made to travel so that the pipe to be installed is already installed. It is transported to the vicinity of the end of the installed pipe, and then the traveling wheel located on the tip side of the beam among the traveling wheels is lowered to land the traveling wheel in the already installed pipe, and Of the traveling wheels, the traveling wheels located on the rear end side of the beam are raised, and thereafter, the pipe to be installed is pressed and moved toward the already arranged pipe, so that the pipe is stably supported. Can be transported It can, the safety can be remarkably improved, can give ride two pairs of running wheels arranged in the longitudinal direction of the beam to reliably and stably piping already installed.

A pipe construction apparatus according to claim 2 of the present invention comprises:
In a pipe construction apparatus in which a plurality of pipes divided in the length direction are connected to each other in the length direction and arranged, one end of the self-propelled carriage is attached to the self-propelled carriage, and the other end of the self-propelled carriage is lined up in the length direction for at least 2 A beam provided with a pair of traveling wheels, a support mechanism provided on the beam for supporting the pipe to be installed from the inside, and a pipe to be installed supported by this support mechanism is pressed toward the already installed pipe. A pressing mechanism for moving and a traveling position of the traveling wheel located on the tip end side of the beam when the self-propelled carriage is traveling to convey the piping to be installed to the vicinity of the end of the already installed piping. Since the vehicle is equipped with a control means for lowering the wheel to land the traveling wheel in the already installed pipe, and further for raising the traveling wheel located on the rear end side of the beam among the traveling wheels, the pipe It can be stably supported and transported, safety can be dramatically improved, and two sets of traveling wheels arranged in the length direction of the beam can be reliably and stably installed in the already installed pipe. Can be driven up to.

The pipe construction apparatus according to claim 3 of the present invention is
The pipe construction apparatus according to claim 2, wherein the beam comprises a fixed beam member attached to the self-propelled carriage, and a slide beam member provided to the fixed beam member so as to be movable back and forth in the length direction thereof. Since the support mechanism is provided on the base end side of the fixed beam member and the tip end side of the slide beam member, the distance between the support mechanisms can be adjusted by moving the slide beam member forward and backward. It is possible to support pipes of various lengths and enhance the versatility of the device.

The pipe construction apparatus according to claim 4 of the present invention is
The pipe construction apparatus according to claim 2 or 3, wherein the support mechanism is provided so as to be movable in the length direction of the beam and fixed so as to be fixed at a predetermined position in the length direction of the beam. By moving the support mechanism in the length direction of the beam and fixing it at a predetermined position, it becomes possible to support pipes of various lengths, and the versatility of the device can be enhanced.

A pipe construction apparatus according to claim 5 of the present invention is
In the pipe construction apparatus according to any one of claims 2 to 4, when the support mechanism presses the pipe by the pressing mechanism, the fixing state with the beam is released and the pipe is pressed together with the pressed pipe. Since it is mounted so as to be movable in the length direction, the relative movement between the pipe and the support mechanism is extremely small, and the support mechanism prevents damage to the inner surface of the pipe.

A pipe construction apparatus according to claim 6 of the present invention is
In the pipe construction apparatus according to any one of claims 2 to 5, since the beam is provided so as to be movable in the vertical direction and the horizontal direction with respect to the traveling carriage, the pipe supported by the support mechanism is moved vertically or vertically. By moving the pipe in the horizontal direction, the centering and the angle of the supported pipe can be adjusted and the end of the pipe can be positioned quickly and reliably, and the work efficiency can be dramatically improved.

The pipe construction apparatus according to claim 7 of the present invention is
In the pipe construction apparatus according to any one of claims 2 to 6, since the support mechanism is provided so as to be movable in a direction intersecting the length direction of the beam, centering adjustment and angle of the supported pipe are performed. Adjustment and positioning of the end of the pipe can be performed quickly and reliably, and work efficiency can be dramatically improved.

[Brief description of drawings]

FIG. 1 is a side view showing a pipe construction apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a front view of FIG.

FIG. 4 is a diagram showing a main part of FIG.

5 is a diagram showing a main part of FIG.

6 is a plan view showing the beam of FIG. 1. FIG.

FIG. 7 is a side view of FIG.

FIG. 8 is a diagram showing a main part of FIG.

FIG. 9 is a diagram showing a main part of FIG. 1.

FIG. 10 is a plan view showing a main part of FIG.

11 is a diagram showing a main part of FIG.

FIG. 12 is a diagram showing a main part of FIG.

FIG. 13 is a diagram showing a main part of FIG. 1.

FIG. 14 is a plan view showing a main part of FIG.

15 is a diagram showing a main part of FIG.

16 is a diagram showing a main part of FIG.

FIG. 17 is a diagram showing a main part of FIG. 1.

18 is a cross-sectional view taken along the line EE in FIG.

FIG. 19 is a side view of FIG.

20 is a diagram showing a main part of FIG. 1. FIG.

21 is a plan view of FIG. 20. FIG.

22 is a diagram showing a main part of FIG.

FIG. 23 is a cross-sectional view showing incidental equipment additionally provided to the pipe construction apparatus of FIG. 1.

FIG. 24 is a diagram showing a first step of the pipe construction method using the pipe construction device of FIG. 1;

FIG. 25 is a diagram showing a second step of the pipe construction method using the pipe construction device of FIG. 1;

FIG. 26 is a diagram showing a third step of the pipe construction method using the pipe construction device of FIG. 1;

27 is a diagram showing a fourth step of the pipe construction method using the pipe construction device of FIG. 1. FIG.

28 is a diagram showing a fifth step of the piping construction method using the piping construction device of FIG. 1. FIG.

29 is a diagram showing a sixth step of the pipe construction method using the pipe construction device of FIG. 1. FIG.

FIG. 30 is a diagram showing a seventh step of the pipe construction method using the pipe construction device of FIG. 1;

FIG. 31 is a diagram showing an eighth step of the pipe construction method using the pipe construction device of FIG. 1.

FIG. 32 is a sectional view showing a conventional underground buried structure.

FIG. 33 is a cross-sectional view showing a conventional method for laying a ductile cast iron pipe.

FIG. 34 is a sectional view showing a conventional method for laying a ductile cast iron pipe.

FIG. 35 is a perspective view of an apparatus used for laying a conventional ductile cast iron pipe.

FIG. 36 is a side view showing a conventional method for laying a ductile cast iron pipe.

FIG. 37 is a sectional view showing a conventional method for laying a ductile cast iron pipe.

[Explanation of symbols]

 100 self-propelled carriage 120 hydraulic cylinder (pressing mechanism) 210,250 wheel device 233,263 wheel 300 beam 310 fixed beam material 350 slide beam material 410,450 support mechanism 421 roller 433,463 hydraulic cylinder

Claims (7)

[Claims] 1. A pipe construction method for connecting and arranging a plurality of pipes divided in the length direction in the length direction, wherein one end is attached to a self-propelled carriage and at least two sets are arranged in the length direction at the other end. The beam provided with the traveling wheel is inserted in the length direction of the pipe to be installed, the pipe is supported from the inside by the beam, the self-propelled carriage is made to travel, and the pipe to be installed is already installed. Transport it to near the end of the pipe,
Next, of the traveling wheels, the traveling wheel located at the tip side of the beam is lowered to land the traveling wheel in the already installed pipe, and further, the rear end side of the beam among the traveling wheels. The method for constructing piping according to claim 1, wherein the traveling wheel located at is raised, and thereafter, the pipe to be installed is pressed and moved toward the pipe already arranged. 2. A pipe construction apparatus in which a plurality of pipes divided in the lengthwise direction are connected in the lengthwise direction and arranged, and a self-propelled carriage and one end is attached to the self-propelled carriage and the other end is a length. A beam provided with at least two sets of traveling wheels arranged side by side in the direction, a support mechanism for supporting the pipe to be installed on this beam from the inside, and a pipe to be installed supported by this support mechanism have already been installed. A pushing mechanism for pushing and moving toward the pipe, and a tip of the beam among the traveling wheels when the self-propelled carriage is run to convey the pipe to be installed to the vicinity of an end of the already installed pipe. Control means for lowering the traveling wheel located on the side to land the traveling wheel in the already installed pipe, and further for raising the traveling wheel located on the rear end side of the beam among the traveling wheels. Prepare A pipe construction device characterized in that 3. The fixed beam is composed of a fixed beam member attached to the self-propelled carriage, and a slide beam member provided to the fixed beam member so as to be movable back and forth in the longitudinal direction thereof. The pipe construction apparatus according to claim 2, wherein the support mechanism is provided on the base end side of the material and the tip end side of the slide beam material. 4. The support mechanism is provided so as to be movable in the lengthwise direction of the beam, and fixedly provided at a predetermined position in the lengthwise direction of the beam. Or the pipe construction apparatus according to item 3. 5. The support mechanism is attached so that when the pipe is pressed by the pressing mechanism, the fixing state with the beam is released and the support mechanism is movable along the length of the beam together with the pressed pipe. 2. The method according to claim 2, wherein
The pipe construction device according to any one of to 4. 6. The pipe construction apparatus according to claim 2, wherein the beam is provided so as to be movable vertically and horizontally with respect to the traveling carriage. 7. The pipe construction apparatus according to claim 2, wherein the support mechanism is provided so as to be movable in a direction intersecting the length direction of the beam.