JP2003083469A - Pipe installation method and device in tunnel - Google Patents

Abstract

(57) [Problem] To provide a pipe installation method and apparatus capable of easily and safely installing a pipe in a short time even if a gap into which an operator enters is small or not, and reducing construction cost. I will provide a. A transport vehicle (6) which is movable in a shield tunnel (1) and has a lifting means capable of moving a pipe (4a to 4n) up and down, and a pipe (6) on the transport vehicle (6). 4a to 4n) are pushed up from the inside and supported.
The pipes (4a) to (4a) to (4a) are provided from one end of the shield tunnel (1) using a movable installation apparatus (10) having a pipe support / installation position adjusting means capable of adjusting the installation position by adjusting the push-up state. 4n) is carried inside, and the installation device (10) is disposed at the other end of the shield tunnel (1).
Thus, the pipes (4a) to (4n) are arranged at predetermined positions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for installing pipes in a tunnel and an apparatus for installing pipes.

[0002]

2. Description of the Related Art In the tunnel, a pipe for supplying, for example, sewage / clean water, electricity, etc., or a pipe for a secondary lining is provided as needed.

When installing this pipe, conventionally, when there is a large gap between the inside diameter of the tunnel and the outside diameter of the pipe to be installed, a worker enters the gap and adjusts the pipe to the installation position by lifting it with a wire or the like. Piping is installed.

4 and 5 show an installation method of the above-mentioned conventional arrangement.

In constructing a tunnel, first, a starting shaft (not shown) is constructed, and a shield machine (not shown) is started from this starting shaft to a reaching shaft (not shown) at a predetermined position. The ground is excavated and the shield tunnel 20 is constructed by sequentially adding segments to the rear of the shield machine along with the excavation.

A pipe 21a is provided in the shield tunnel 20.
~ 21c is installed, piping 21a ~ 2 from the starting shaft
1c is carried in and the pipes 21a to 21c are carried to predetermined positions in the shield tunnel 20.

An example will be described below in which the newly introduced pipe 21c is installed to the already installed pipes 21a and 2b.

At the bottom of the shield tunnel 20, there is a pipe 2
A temporary support 22 for temporarily placing 1c is provided. Further, a pipe 21c is hung above the inside of the shield tunnel 20, a wire 23 for hanging the pipe 21c, and a chain block 24 are provided.
Etc. are also provided.

The pipe 21c transported from the starting shaft side into the shield tunnel 20 is first temporarily placed on the temporary receiving base 22.

The worker 25 enters the gap between the segment 20A constituting the shield tunnel 20 and the pipe 21c, hangs the wire 23 on both ends of the pipe 21c, and lifts the pipe 21c by the chain block 24.

The suspended pipe 21c is finely adjusted to a predetermined position so as to be connected to the pipes 21a and 21b already installed, and the pipe 21c is connected and fixed to the pipe 21b.

Thereafter, the same work is repeated in sequence to add and install the pipes.

[0013]

Conventionally, since the worker 25 enters the gap between the segment 20A and the pipe 21c to perform the work, the runout of the pipe 21c and the drop of the pipe 21c drop. There is a possibility that it will be extremely dangerous work.

Further, it is difficult to finely adjust the installation position of the pipe 21c, the installation work takes time, the construction period becomes long, and the construction cost increases accordingly.

Further, the work of the worker 25 in the narrow gap causes the worker 25 to suffer.

Furthermore, the segment 20A and the pipe 21
Depending on the diameter of c, the working gap may be extremely narrow or may not be secured, which makes it difficult to install the pipe.

The present invention has been proposed in view of the above, and an object of the present invention is to easily and safely install a pipe in a short time even if there is a narrow gap into which an operator enters, or even without a gap. An object of the present invention is to provide a pipe installation method and apparatus that can be installed and can reduce construction costs.

[0018]

According to the present invention, the pipes 4a to 4n are carried in from one end side of the shield tunnel 1 and transported to the vicinity of the other end side, and at the other end side, the pipes 4a to 4n are conveyed. 4n is pushed up from the inside to be supported, and the pushing state is adjusted to a predetermined installation position through a movable installation device 10 having means for adjusting the installation position. The above object is achieved by providing a supporting member between the pipes and installing and fixing the pipes 4a to 4n.

Further, when installing the pipes, a carrier truck 6 that is movable in the shield tunnel 1 and has a lifting means that can move the pipes 4a-4n up and down, and the pipes 4a-4n on the carrier truck 6 are installed. It is characterized by using a movable installation device 10 which has a pipe support / installation position adjusting means capable of supporting and lifting from inside and adjusting the installation state to adjust the installation position.

Further, in this case, the pushing-up means is composed of a cylinder 8, and the pipe support / installation position adjusting means is composed of a supporting jack 15 provided on an upper front part of the arm 13.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a pipe can be installed at a predetermined position by using a movable installation device 10 capable of installing and installing the pipe. The installation device 10 is a pipe 4a.
.About.4n has an arm 13 protruding inward, and at least one or more supporting cylinders 15 are provided on the front upper part of the arm 13. The supporting cylinder 15 lifts the pipes 4a to 4n from the inside, and the length thereof can be finely adjusted so that the pipes 4a to 4n can be installed while being positioned at predetermined positions inside the shield tunnel 1. I have to.

As described above, by using the installation device 10, the installation work of the pipes 4a to 4n is not required even if the worker does not enter the narrow space between the pipes 4a to 4n and the shield tunnel 1 as in the conventional case. I can do it.

[0023]

1 to 3 show an embodiment of the pipe installation method and apparatus used in the installation according to the present invention. This embodiment shows an example in which, when the primary lining is completed in the shield tunnel and the secondary lining is constructed by pipes, the difference between the inner diameter of the shield tunnel and the outer diameter of the pipe to be installed is very small. Among these drawings, FIG. 1 is an explanatory view showing a state in which piping is installed in a shield tunnel, FIG. 2 is an explanatory view of the same process as above, and FIG.
A middle AA line sectional view is shown.

In these figures, 1 is a shield tunnel,
This shield tunnel 1 has a starting shaft (not shown) built on the right side in the state shown in the figure, and a segment 3 is built in as the shield machine (not shown) starts from there toward the reaching shaft 2. .

Well-known carry-in equipment such as a wire for suspending the pipe 4a is provided in the starting shaft. Since these are well-known techniques, illustration and detailed description thereof are omitted.

At the lower part of the shield tunnel 1, there is provided a railroad equipment 5 composed of a pair of rails and the like, and a railcar 6 on which the railroad equipment 5 is freely movable is provided. The carrying device 7 is connected. The carrying device 7 is configured to include a drive motor (not shown) and wheels 7a for traveling.

The carrier 6 also has wheels 6a for traveling on the rail facility 5, and a plurality of telescopic cylinders 8 are mounted on the upper part of the carrier 6 so that pipes 4a placed thereon can be vertically moved. Is provided at an appropriate position.

In the above, the carriage 6 itself may be provided with a driving device for traveling, and the carriage 6 and the carriage 7 may be integrally formed to make the carriage 6 self-propelled.

A pedestal 9 is provided at the bottom of the reaching shaft 2. A movable installation device 10 for installing the pipe 4a is provided on the pedestal 9.

This installation device 10 has a base 11, a moving tire 12 is provided at the bottom of the base 11, and a long length extending in the length direction of the shield tunnel 1 is provided at the top of the base 11. A cantilevered arm 13 made of a member is provided. The fixed cylinder 1 is provided on the arm 13 with a space therebetween.
4, the expandable support cylinder 15 is provided for pushing up the pipe 4a from the inside to support it and for finely adjusting the installation position. When the supporting cylinder 15 is operated, the fixed cylinder 14 is used as a reaction force receiver thereof.

The supporting cylinders 15 are provided on the distal end side of the arm 13 and on the inner side thereof with a space therebetween. Further, the fixed cylinders 14 are provided at the inner positions thereof, that is, above the front end side and above the rear end side of the base 11, respectively.

As described above, the pipe installation apparatus according to the embodiment of the present invention is movable in the shield tunnel 1 and allows the pipe 4a to be placed on the upper portion thereof, and the pipe 4
Movable installation device 10 having a carriage 6 having a pushing-up means capable of pushing up a from below and a pipe support / installation position fine adjustment device for pushing and installing pipe 4a on this carriage 6 from the inside. And is configured.

Next, a method of installing the pipe will be described.

First, as shown in FIG. 1, a rail facility 5 is laid inside a shield tunnel 1 from a starting shaft (not shown) to a pipe installation position, in the present embodiment, near a reaching shaft 2.

On the gantry 9 of the reaching shaft 2, the installation device 10 loaded from the ground side is installed. The installation device 10 may be assembled in the reaching shaft 2.

The installation device 10 is installed by adjusting the level of the first pipe 4a with a gantry 9 at a position where it is easy to install. This level adjustment is performed via a known level adjusting mechanism (not shown).

The first pipe 4a is loaded from the starting shaft (not shown) side, placed on the cylinder 8 of the carrier truck 6, and the carrier device 7 is operated remotely or directly to carry it to the vicinity of the reaching shaft 2.

In the vicinity of the reaching shaft 2 of the shield tunnel 1, the tip of an arm 13 having a supporting cylinder 15 at its upper portion extends. In this case, the support cylinder 15 is contracted. Further, the first pipe 4a is pushed up by the cylinder 8 of the carrier truck 6 to a position where it does not collide with the supporting cylinder 15, and is moved to the pipe installation position by the carrier device 7. When the first pipe 4a is moved to the vicinity of the reaching shaft 2, the supporting cylinder 15 is located inside the pipe 4a.

Next, the supporting cylinder 15 of the installation apparatus 10 is extended and the pipe 4a is pushed upward from the inside. On the other hand, the cylinder 8 on the side of the carriage 6 is contracted and separated from the pipe 4a.

The length of the supporting cylinder 15 of the installation device 10 is adjusted, and the first pipe 4a is set at a predetermined level of the installation position inside the segment 3. Further, the horizontal position for installation is set to a predetermined position by moving the carrier truck 6.

After the first pipe 4a is set at a predetermined installation position, a supporting member such as a fixed metal fitting 16 is provided between the pipe 4a and the segment 3 to fix the fixed metal fitting 16 as shown in FIGS. In the case of, the joint is welded and fixed. These welding operations and the like are performed by workers. A plurality of fixed hardware 16 are provided between the pipe 4a and the segment 3 at appropriate intervals. In the example of FIG. 3, the fixed hardware 16
An example in which is provided is shown.

After the fixing is completed, the supporting cylinder 15 is contracted and separated from the inner surface of the first pipe 4a, and the installation device 10 is moved to the next second
The pipe 4b of is moved to a position where it can be installed.

The next second pipe 4b is transported to the vicinity of the already installed first pipe 4a by the procedure described above.

In this case, the second pipe 4b is pushed up by the cylinder 8 of the carrier truck 6 to a position where it does not interfere with the supporting cylinder 15, and the carrier truck 6 is moved and set at the pipe installation position. At this time, the supporting cylinder 15 is contracted.

The supporting cylinder 15 of the installation apparatus 10 is extended to lift and support the second pipe 4b.

The cylinder 8 of the carriage 6 is contracted and separated from the second pipe 4b.

The support cylinder 15 of the installation device 10 is contracted to finely adjust the installation position of the second pipe 4b in the radial direction of the segment 3 and set to a predetermined level, and the carriage 6 is moved to move the second pipe. 4b is moved to a predetermined position.

At this time, the installation hardware 17 is preliminarily fixed to the outer peripheral surface of the second pipe 4b on the side of the starting shaft, and the second pipe 4b is placed on the installation hardware 17 to shorten the installation time. 4a and the next second pipe 4b are fixed.

In the process of installing and installing the first and second pipes 4a and 4b, the rail equipment 5 is removed within a range that does not hinder the installation of the next pipe.

A gable form 18 is installed on the side of the reaching shaft 2 and a grate form 18 'is installed on the side of the starting shaft, and a filler is filled in the gap between the segment 3 and the first and second pipes 4a and 4b.

Thereafter, the same procedure is repeated, and the third pipe 4c and the n-th pipe are sequentially installed / installed / filled with a filling material.

It should be noted that the reaction force of pushing up the third pipe 4c or the like is an upper reaction force by the fixed cylinder 14 provided in the installation device 10, and the lower reaction force is an existing reaction force by the tire 12 provided in the installation device 10. It can be received by the first and second pipes 4a, 4b and the like.

In the above embodiment, the case where the difference in the inner diameter of the shield tunnel 1 and the outer diameter of the pipe to be installed is small has been described as an example.

Further, an example in which the first to third pipes 4a to 4c are carried in from the starting vertical shaft side and the installation device 10 is arranged on the reaching vertical shaft 2 side has been described, but the construction can be carried out by reversing.

[0055]

As described above, according to the present invention, the installation device 1 having the support / fine adjustment device capable of pushing up the pipes 4a to 4n to the reaching shaft 2 side and finely adjusting the installation position is possible.
0 is movably provided and the pipes 4a to 4n transported from the starting shaft through this device 10 are sequentially installed and installed at predetermined positions. Therefore, the shield tunnel 1 and the pipes 4a to 4n are narrow. Work can be performed easily and safely without the need for a worker to enter the space.

Further, the fine adjustment of the pipes 4a to 4n becomes easy and the installation work of the pipes 4a to 4n can be carried out in a short time, so that the construction time can be shortened and the construction cost can be reduced.

[Brief description of drawings]

FIG. 1 is an explanatory view of an installation method and a pipe installation device according to an embodiment of the present invention.

FIG. 2 shows an explanatory view of the same pipe installation process.

FIG. 3 is a sectional view taken along line AA in FIG.

FIG. 4 is an explanatory diagram of a conventional example.

5 is a sectional view taken along line BB in FIG.

[Explanation of symbols]

1 shield tunnel 2 reaching shaft 3 segments 4a, 4b, 4c First to third piping 5 railroad equipment 6 carrier 6a wheels 7 Carrier 7a wheels 8 cylinders 9 mounts 10 Installation device 11 bases 12 tires 13 arms 14 Fixed cylinder 15 Supporting cylinder 16 Fixed hardware 17 Installation hardware 18,18 'wife formwork

Claims (3)

[Claims] 1. The pipes (4a-4n) are carried in from one end side of the shield tunnel (1) and transported to the vicinity of the other end side, and at the other end side, the pipes (4a-4n) are connected. The pipe and the shield tunnel (1) are set to a predetermined installation position through a movable installation device (10) that has means for adjusting the installation position by adjusting the installation position by pushing up and supporting it from the inside. ), And a pipe (4a-4n) is installed and fixed by providing a supporting member between the pipe and the pipe. 2. A carrier truck (6) movable in the shield tunnel (1) and having a lifting means capable of vertically moving the pipes (4a-4n), and a pipe on the carrier truck (6). (4a to 4n) is pushed up and supported from the inside thereof, and a movable installation device (10) having a pipe support / installation position adjusting means capable of adjusting the installation state by adjusting the pushed up state, and. A pipe installation device inside a shield tunnel. 3. The push-up means comprises a cylinder 8 and the pipe supporting / installing position adjusting means comprises a supporting jack (15) provided at an upper front portion of the arm (13). This is a pipe installation device in a shield tunnel.