JP2001280541A - Method of carrying pipe unit in and truck for carrying pipe unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance incoming efficiency of a pipe unit, by shortening waiting time in a connecting yard of a self-propelled vehicle, in the case of constructing a pipe line by repeating work mounting the pipe unit in a carriage connected to the self-propelled vehicle to be carried in a pipe line laying pit after connected to the rearmost pipe unit in the pipe line to bring this carriage accompanied to be returned again to a starting pit. SOLUTION: This method comprises an incoming process for mounting a pipe unit 2 on a carriage 1 connected to the forward of a self-propelled vehicle 26 in a starting pit 28 to be advanced to a connecting yard to the rearmost pipe unit A2 in a pipe line laying pit 27, a return process connecting the carriages N1, N2 moved into the rearmost pipe unit A2 in a connecting process in the preceding time to the self-propelled vehicle 26 to be returned to the starting pit 28, and a connecting process performing work connecting pipe units B1, B2 on carriages M1, M2 separated from the above self-propelled vehicle 26 to the rearmost pipe unit A2 also to be formed with a pipe unit B2 in the rearmost separated from the carriage to be newly provided to move the separated carriages M1, M2 into the concerned newly provided rearmost pipe unit B2, so as to execute the above return process in parallel to the connecting process.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe carrying method for carrying a pipe into a primary lining to construct a secondary lining conduit, and to a pipe carrying truck used for carrying out the method. Things.

[0002]

2. Description of the Related Art When a secondary lining pipeline is constructed in a primary lining (a pipeline laying pit) constructed by a shield excavator, a pipe for forming a pipeline is suspended in a start pit, and this is hung. Mounted on a bogie connected in front of a self-propelled vehicle such as a battery car,
The vessel is advanced on the track in the pipeline laying tunnel and is carried to the connection yard with the tail pipe of the pipeline. Connect the pipe to the existing pipe while pushing the bogie with the self-propelled car, pull out the bogie with the pillow member, pull the empty bogie with the self-propelled car, return to the start pit, mount the next pipe and connect again Yard, and then a similar method is repeated to construct a pipeline (Japanese Patent No. 2575940, Japanese Patent Publication No. 7-1195).
No. 59, etc.).

[0003]

In the above-mentioned conventional method, the self-propelled vehicle waits until the tube on the loaded truck is connected to the last tail tube, and the truck is separated from the tube. After that, the vehicle is returned to the starting pit while being pulled by the self-propelled vehicle. In this way, waiting for the transported truck to be separated from the pipe, pulling it back with the self-propelled vehicle, disconnecting the truck immediately after loading, returning only the self-propelled vehicle first, In the meantime, if the connecting work is performed and the bogie is returned to the track, the bogie will be sandwiched between the last tail pipe and the loaded pipe at the next loading, and the pipe connecting work This is because there is a problem that causes trouble.

In order to improve the working efficiency, a method is also conceivable in which a plurality of tubes are mounted one by one on a plurality of trucks and a plurality of tubes are carried in at once by a self-propelled vehicle. It is necessary to wait until all connections of a plurality of pipes carried in at a time are completed, and to pull all the bogies back to the starting pit, so that the waiting time becomes longer and the work efficiency cannot be improved.

[0005] In recent years, since the laying distance of pipelines for water and sewage and the like has been increasing more and more, it has been demanded to shorten the waiting time of a self-propelled vehicle and to improve the efficiency of pipeline laying work. is there.

Accordingly, the present invention provides a method for carrying a pipe which has a short waiting time for a self-propelled vehicle and does not hinder the work even if a plurality of pipes are carried in at once using a plurality of carriages. Another object of the present invention is to provide a transport trolley used for implementing the method.

[0007]

Means for Solving the Problems The invention of a pipe carrying-in method for achieving the above-mentioned object is shown in FIG.
A loading step (I) in which a pipe is mounted on a bogie connected to the front of the self-propelled vehicle in a starting pit, and is advanced on a track in a pipe laying pit to a connection yard with a last tail pipe of the pipe; (Ii) disconnecting the self-propelled vehicle at the connection yard, connecting the bogie that has been moved into the tail tube body in the previous connection process to the self-propelled vehicle, and returning the bogie to the starting pit; The tube on the truck separated from the car is connected to the tail tube and separated from the truck to form a new tail tube, and the separated truck is moved into the new tail tube. A connection step (III) for performing an operation, and the return step (II) is performed in parallel with the connection step (III).

According to the above-described loading method, when the next loading step is performed, the truck (one or more) that has been loaded previously has been moved into the tail tube body. The truck in the tail tube is not disturbed and is transferred to the self-propelled vehicle and returned to the starting pit, so that there is no bearing for the next connection process. And, since the return process can be performed in parallel with the connection process without waiting for the completion of the connection process, the waiting time of the self-propelled vehicle is shorter than the conventional method in which the carry-in process and the connection process are performed in series one by one. Be shortened.

In the carrying-in process, when two or more bogies are connected to the self-propelled vehicle, and the pipes corresponding to the numbers are mounted in order from the first bogie, the connecting process includes:
The No. 1 bogie is separated from the No. 2 bogie, and the No. 1 pipe is separated from the No. 1 bogie and connected to the last tail pipe of the pipeline to form a new last tail pipe by the No. 1 pipe. At the same time, the first bogie is moved into the No. 2 pipe, and then the No. 2 pipe is separated from the No. 2 bogie and connected to the last tail pipe, and the second tail pipe is newly installed by the second pipe. When the number of the carts is two, the second bogie is moved together with the first bogie to the rearmost tubular body by the second tubular body. When the number of the bogies is three or more, the third and subsequent bogies are sequentially arranged. Forming a tail tube by the tube,
It is possible to adopt a method in which the operation of moving the third and subsequent bogies to the next pipe is executed for all bogies and all pipes, and finally all bogies are moved to the last tail pipe.

[0010] Further, the invention of a transport trolley used for directly carrying out the above-mentioned carrying-in method comprises a front trolley and a rear trolley detachably connected by connecting means to constitute one trolley. It was done.

When carrying out the connecting step of the above-described loading method, the transport vehicle having the above structure can be handled by disassembling the truck into a front truck and a rear truck.

An adjustment board having a tube support for a tube is mounted on each of the front bogie and the rear bogie frame so as to be slidable in a direction perpendicular to the longitudinal direction of the bogie frame. A configuration in which an adjustment driving device is provided between the vehicle and the bogie frame can be employed. According to this configuration, the center position of the tube on the carriage can be positioned in the left-right direction.

Further, it is possible to adopt a configuration in which the tube support is mounted on the adjustment substrate so as to be able to move up and down by a lifting drive. According to this configuration, the vertical position of the center position of the tubular body can be determined.

The upper limit of the height of the carriage is determined by the wheels.
In addition, the lower limit is defined by the bogie frame, and the portion of the outer surface of the wheel that does not come into contact with the track when moving on the track, and that contacts the inner surface of the pipe when moving on the inner surface of the pipe. Can be adopted in which a protective layer is coated. According to this configuration, when the bogie is turned upside down and travels inside the pipe, the bogie frame does not contact the pipe inner surface, and the wheels travel while contacting the pipe inner surface. At this time, the inner surface of the tube is prevented from being damaged by the presence of the protective layer. The protective layer does not come into contact with the track when moving on the track, and thus does not come off.

[0015]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The carriage will be described first for convenience of explanation. As shown in FIG. 1, the truck 1 of this embodiment has a size such that one tube 2 can be mounted on each truck, and the front truck 3 and the rear truck 3 'are removably connected by a connecting bar 4. It is composed. Front bogie 3 and rear bogie 3 '
Have the same structure, the following description will be made by taking the front bogie 3 as an example.

As shown in FIGS. 2 to 4, the front bogie 3 has wheels 7 mounted by bearings 6 above four corners of a rectangular bogie frame 5 made of a U-shaped section steel. The outer end portion of each wheel 7 protrudes to both sides of the bogie frame 5.

Guides 9 in the longitudinal direction are attached to the inner surfaces of the end frames 8 of the bogie frame 5 opposed to each other, and both ends of the adjustment board 10 are slidably attached to each guide 9. A hydraulic cylinder 11 that constitutes an adjustment driving device is mounted between one side of the adjustment board 10 and one side edge of the bogie frame 5, thereby moving the adjustment board 10 in the longitudinal direction of the bogie frame 5. Can be moved in a direction perpendicular to the direction.

At the rear end of the upper surface of the adjustment board 10, a hydraulic cylinder 12 constituting a lifting drive is mounted in a horizontal state, and a movable link 14 is attached to a fork end 13 'at the tip of a piston rod 13 by a pin. It is pivotally supported at 14 'and is rotatably connected. Further, a pair of left and right fixed side links 15 are rotatably connected to the bracket 19 by pins 15 ′ at the front end of the adjustment board 10. The upper end of the fixed side link 15 is supported by one support shaft 16, and the movable side link 1
The upper end of 4 is rotatably connected to its support shaft 16. Supports 17 are mounted on both ends of the support shaft 16 so as to be rotatable and not to slide in the axial direction. In the state where the piston rod 13 is most retracted, both the links 14 and 15 have an angle (see the state of the solid line in FIG. 3) so that a dead point does not occur between the links 14 and 15.

A horizontal support member 20 is provided on the bogie frame 5 so that the support bases 17, 17 at both ends of the support shaft 16 are kept horizontal when the piston rod 13 is retracted most. Does not rotate. As shown in FIG. 4, each of the support bases 17 has a support surface 21 which is inclined downward inward, and the carry-in pipe 2 is placed thereon.

Brackets 18 and 18 'for connection are provided on the outer surfaces of the center of the front end and the center of the rear end of the bogie frame 5, respectively.

The outer end of the wheel 7 is formed in a tapered shape so as not to contact the track 22 provided in the pipeline laying pit 27, and the surface of the tapered portion is covered with a protective layer 23 (FIG. 5). reference). The outer surface of the brim portion 24 for preventing derailment is also covered with a protective layer 23 '. These protective layers 23,
23 'is formed of, for example, urethane rubber. When traveling on the track 22, these protective layers 23 and 23 ′ are provided at positions where the track 22 does not come into contact in order to avoid separation.

The protection layers 23 and 23 'as described above are provided when the front bogie 3 or the rear bogie 3' is turned upside down and travels on the inner surface of the tube 2 as described later (see FIG. 11). ) To prevent the inner surface from being damaged.
When the contact position with the inner surface is one, the protective layer 23 or 23 'is formed only at the contact position.

The front bogie 3 and the rear bogie 3 'are as described above.
8 and 18 ′, connect both ends of the connection bar 4 with the connection pins 2.
One trolley 1 is configured by being connected by 5, 25 ′ (see FIG. 3) (see FIG. 1). Further, it is connected to another carriage 1 having the same configuration by the other two connection bars 4 and 4. Further, the rear end of the carriage 1, that is, the rear carriage 3 '
The rear end of the vehicle and the self-propelled vehicle 26 are also connected by the connection bar 4.

Next, a method of carrying the tubular body 2 using the above-described cart 1 will be described with reference to the time-series diagrams of FIGS. 6 to 11 and 12. In this case, one tube 2 is mounted on each of the two carts 1 and 1 to be carried in. Each truck 1 is constituted by the front truck 3 and the rear truck 3 'described above. For convenience of explanation, the following symbols are given to the cart 1 and the pipe 2. In FIG. 6, two trucks 1, 1 installed in a starting pit 28 and connected to the front of a self-propelled vehicle 26 are shown.
Is the first truck N1 for the front one, and the second truck N for the rear one
2, the front bogie 3 and the rear bogie 3 'of the first bogie are N11 and N12, respectively, and the front bogie 3 and the rear bogie 3' of the second bogie N2 are N21 and N22, respectively. No. 1 trolley N1
The pipe 2 mounted on the first pipe A1 is the first pipe A1, and the pipe 2 mounted on the second bogie N2 is the second pipe A2. Further, X is the last tail pipe of the existing pipeline. M shown in FIGS. 9 and 10
Reference numerals 1 and 2 denote the first bogie and the second bogie in the loading process of the next process, and B1 and B2 denote the first tube and the second tube of the next process, respectively.

The tail pipe X may be the tail pipe of an existing pipeline during the execution of the method of the present invention, or may be the end of the pipe laying pit 27 at the beginning of the execution of the method. In the pillow member 29
In some cases, the pipe may be an existing pipe supported at a predetermined height. The following description is the latter.

"Loading Step (I)" When the first loading step is performed, as shown in FIG.
No. 1 tube A1 on No. 2 truck N1 and No. 2 truck N2,
The second pipe A2 is mounted, advanced on the track 22 by the self-propelled vehicle 26, and carried into the connection yard immediately before the existing pipe X in the pipe laying pit 27.

[Return Process (II)] When the vehicle reaches the connection yard, first, as shown in FIG. 7, the self-propelled vehicle 26 is separated.
Since there is no carriage to be brought back in the first return step, the self-propelled vehicle 26 returns to the starting pit 28 with the empty vehicle.

"Connection Step (III)" A connection step is performed in parallel with the return step. In the connection step, the first bogie N1 is separated from the second bogie N2 by a worker's manual operation, and the first bogie N1 is advanced to insert the first bodily A1 while aligning the first bogie N1 with the receptacle of the existing pipe X. The mouth is inserted and the connection is made manually using a lever block (see FIG. 8). In this case, the centering is performed in the left-right direction by the operation of the hydraulic cylinder 11 (see FIG. 2), and in the up-down direction by the operation of the hydraulic cylinder 12, and when the connection is completed, from both sides of the first pipe A1. Pillow member 29 to track 22
From the outside, the first tube A is deposited therein, and the support bases 17 and 17 are slightly lowered by the hydraulic cylinder 12 to retract the first truck N1 and remove it from the first tube A1. The first tube A1 is connected to the tube X and becomes a new tail tube.

Next, the first truck N1 is connected to the front truck N1.
1 and a rear truck N12, and these are moved into the second tube A2 as shown in FIG. Then, the second bogie A2 is advanced, and as shown in FIG. 9, the second tubular body A2 is connected to the last tail tubular body A1. This time the second pipe A2
Will be the new tail tube. And the last tail tube A
2 is deposited on the pillow member 29, and the front bogie N21 and the rear bogie N22 are moved into the tail tube body A2 (see FIG. 9). As shown in FIG. 11, the front bogies N11 and N21 and the rear bogies N12 and N22 which have been moved into the tail tube body A2, as shown in FIG. To the inner surface. Since the cart mounted thereon has a normal posture, the upper and lower carts are in close contact with the lower surfaces of the flat cart frames 5 and 5. In addition, it is also possible to arrange the truck disposed in the lower part in the tail tube body A2 in a normal posture without being turned upside down, and to load another truck thereon.

"Next Transfer Step (I)" The next carry-in step is performed in parallel with the connection step. That is, as shown in FIG. 9, the first bogies M1 and M2 connected to the self-propelled vehicle 26
The # 1 tube B1 and the # 2 tube B2 are mounted on the truck M2, respectively, and are carried into a new connection yard approaching the tail tube A2. The self-propelled vehicle 26 is separated. Previous trolley N
1, N2 is in the tail tube body A2, so the carts M1, M
2 does not support the delivery of the tubes B1, B2.

"Next return process (II)" When the first bogie M1 and the second bogie M2 reach the new connection yard, the front bogie N11 of the first bogie N1 existing inside the last tail pipe A2,
The rear bogie 12, the front bogie N21 and the rear bogie N22 of the second bogie N2 are caused to travel inside the first bodily body B1 and the second bodily body B2 (see the dashed-dotted arrow in FIG. 10), and any one of them is tracked. 2
2 and the other three are stacked on top of it and connected to the self-propelled vehicle 26. The self-propelled vehicle 26 is returned to the starting pit 28 with the carriage.

Thereafter, as shown in the time series diagram of FIG. 12, the next connection step (III) is performed in parallel with the return step (II).
Is performed. Hereinafter, these steps are repeatedly performed.

As can be seen from FIG. 12, since the returning step can be performed in parallel with the connecting step, the waiting time of the self-propelled vehicle 26 is reduced.

Although FIG. 11 shows the case where the pipe 2 is provided concentrically with the conduit laying hole 27, it is not always necessary that the pipe 2 be concentric.

In the first embodiment described above, one carriage 2 is mounted on each of two carriages 1 and 1, and each carriage 1 can be separated into a front carriage 3 and a rear carriage 3 '. Although the carrying-in work is performed by using this, the basic idea of the present invention is not limited to this. For example, FIG.
As in the second embodiment shown in FIGS. 3A and 3B, there is a case where one tube 2 is carried in using one carriage 1 (which cannot be disassembled). The steps in this case are as follows.

"Loading Step (I)" FIGS. 13A (a) and 13 (b)
As shown in (1), the first tube A is mounted on the first truck N, and is carried by the self-propelled vehicle 26 to the connection yard with the existing tube X.

After the "return process (II)", the first truck N is separated from the self-propelled vehicle 26, and only the self-propelled vehicle 26 is returned to the starting pit 28 (see FIG. 3C).

[Connecting step (III)] The connecting step (III) is performed in parallel with the returning step, and as shown in FIG. Then, the pillow member 29 is pushed into the lower portion of the trolley, and the pillow member 29 is deposited in the lower portion of the pillow member 29 to pull out the first bogie N.

"Next Loading Step (I)" The next loading step is performed following the returning step. In this carrying-in step, the second tube B is mounted on the second bogie M in the starting pit 28, and the self-propelled vehicle 26 is moved forward and carried into the connection yard (see FIG. 4D). Self-propelled car No. 2 truck M at connection yard 26
Disconnect from

"Next Return Step (II)" When the above-mentioned loading step is completed, the first bogie N in the last tail pipe A is moved inside the second pipe B to move onto the track 22, and It is connected to the traveling vehicle 26 (see FIG. 3E). After the connection is completed, the truck N
And return to the starting shaft 26. Hereinafter, the same steps are repeated.

In the second embodiment, the carriage 1
For example, a vehicle formed by connecting a front truck and a rear truck can be used. In that case, there is the convenience that the truck 1 can be disassembled into a front truck and a rear truck in the connecting step and the returning step and can be handled.

Next, the third embodiment shown in FIGS. 14A and 14B is a case in which one tube body 2 is mounted on two carriages 1 and carried in. In this case, each truck 1 cannot be disassembled. This is basically the same as the above-described second embodiment, but differs from the first embodiment in that, as shown in FIGS.
The No. 1 pipe A1 is connected to the existing pipe X, stored in the pillow member 29, and the No. 1 bogie N1 is pulled out. Further, the carriage N1 is moved into the second tube A2, and the second tube A2 is moved to the last tail tube A1.
, And deposited on the pillow member 29 to pull out the second carriage N2. The second bogie N2 is moved into the tail tube body A2 (see FIG. 4D). In the next return process,
The first truck N1 and the second truck N2 in the tail pipe A2 are
The self-propelled vehicle 2 is made to travel inside the # 1 pipe B1 and the # 4 pipe B2.
Transfer to the 6 side. The same applies to a case where there are three or more carts 1.

Note that, in the third embodiment, the bogie 1 is constituted by a detachable connecting structure of the front bogie and the rear bogie in the above-described first embodiment.

[0044]

As described above, according to the pipe carrying method according to the present invention, the carriage used for the previous carry-in is once moved to the last tail pipe body. There is no bearing to carry in and the motor vehicle can enter the return process after a short waiting time. For this reason, the carrying efficiency of the pipe is improved.

In addition, by using a carrier that can be disassembled back and forth as a carrier for carrying out the above-described method, there is an effect that handling of the carrier when moving into the tail tube is facilitated.

By providing a protective layer on the wheels of the transport vehicle, it is possible to prevent the inner surface of the tube from being damaged when the vehicle is driven by the wheels of the transport vehicle in the tail tube.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional plan view of a first embodiment.

FIG. 2 is a plan view showing a part of the cart.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2;

FIG. 5 is a sectional view of a wheel portion of the above.

FIG. 6 is a sectional view in the order of steps of the carrying-in method of the above.

FIG. 7 is a sectional view in the order of steps of the loading method according to the first embodiment;

FIG. 8 is a sectional view in the order of steps of the carrying-in method of the above.

FIG. 9 is a sectional view in the order of steps of the carrying-in method of the above.

FIG. 10 is a sectional view in the order of steps of the loading method of the above.

FIG. 11 is a sectional view taken along line XI-XI in FIG. 8;

FIG. 12 is a time series diagram of each step of the above.

13A to 13C are explanatory views in the order of steps in the second embodiment.

FIGS. 13D to 13E are explanatory diagrams in the order of steps of the second embodiment.

FIGS. 14A to 14C are explanatory diagrams in the order of steps of the third embodiment.

FIGS. 14B to 14E are explanatory diagrams in the order of steps of the third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bogie 2 Pipe 3 Front bogie 3 'Rear bogie 4 Connecting bar 5 Bogie frame 6 Bearing part 7 Wheel 8 End frame 9 Guide 10 Adjustment board 11 Hydraulic cylinder 12 Hydraulic cylinder 13 Piston rod 14 Movable link 14' Pin 15 Fixed Side link 15 'Pin 16 Support shaft 17 Support base 18, 18' Bracket 19 Bracket 20 Horizontal support member 21 Support surface 22 Track 23, 23 'Protective layer 24 Collar 25, 25' Connecting pin 26 Self-propelled vehicle 27 Pipe laying Pit 28 start pit 29 pillow member

Continued on the front page (72) Inventor Mitsunobu Fujimoto 1-12-19 Kitahorie, Nishi-ku, Osaka City Inside Kurimoto Iron Works (72) Inventor Yuichiro Yoshida 1-12-19 Kitahorie, Nishi-ku, Osaka Co., Ltd. Kurimoto Iron Works

Claims (6)

[Claims] 1. A loading step in which a pipe is mounted on a bogie connected to a front of a self-propelled vehicle in a starting pit, and is advanced on a track in a pipe laying pit to a connection yard with a last tail pipe of the pipe; ,
Disconnecting the self-propelled vehicle in the connection yard, returning the bogie that has been moved into the last tail pipe body in the previous connection process to the self-propelled vehicle, and returning to the start pit;
The tube on the bogie separated from the self-propelled vehicle is connected to the last tail tube and separated from the bogie to form a new last tail tube, and the separated bogie is connected to the new last tail tube. A pipe carrying-in method, comprising: a connecting step of performing an operation of moving the pipe into the pipe; and performing the returning step in parallel with the connecting step. 2. In the carrying-in step, when two or more bogies are connected to the self-propelled vehicle and the pipes corresponding to the numbers are mounted in order from the first bogie, the connecting step includes: The No. 1 bogie is separated from the No. 2 bogie, and the No. 1 pipe is separated from the No. 1 bogie and connected to the last tail pipe of the pipeline to form a new last tail pipe by the No. 1 pipe. At the same time, the first bogie is moved into the No. 2 pipe, and then the No. 2 pipe is separated from the No. 2 bogie and connected to the last tail pipe, and the second tail pipe is newly installed by the second pipe. When the number of the carts is two, the second bogie is moved together with the first bogie to the rearmost tubular body by the second tubular body. When the number of the bogies is three or more, the third and subsequent bogies are sequentially arranged. The operation of forming the last tail pipe by the pipe and moving the third and subsequent bogies to the next pipe is performed for all bogies and all pipes. 2. The method according to claim 1, wherein the entire carriage is moved to the last tail pipe. 3. A tube transport truck comprising a front truck and a rear truck detachably connected by connecting means to constitute one truck. 4. An adjusting board having a support for a tube is mounted on each of the bogie frames of the front bogie and the rear bogie so as to be slidable in a direction perpendicular to the longitudinal direction of the bogie frame. 4. The tube carrier according to claim 3, further comprising an adjustment driving device provided between the frame and the frame. 5. The tube carrier according to claim 4, wherein the support base is mounted on the adjustment board so as to be vertically movable by a lifting drive. 6. The vehicle according to claim 3, wherein an upper limit of the height of the bogie is defined by the wheels, and a lower limit is defined by the bogie frame, and a contact layer between each wheel and the inner surface of the tube is covered with a protective layer. 5. The tube transporting vehicle according to any one of items 5.