JP2818840B2 - Pipe laying method and pipe laying equipment in shield construction - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method and an apparatus for laying a pipeline such as a mud pipe or a mud pipe in a tunnel in shield construction.

"Conventional technology and its problems" As is well known, the shield method excavates the ground with a cutter device provided at the front of a cylindrical outer shield machine,
This is a method of assembling a segment that is a cylindrical divided body inside the shield machine, taking a reaction force from the assembled segment, moving the entire shield machine forward, and repeating these steps to form a tunnel in the ground.

By the way, in the shield construction as described above, a mud pipe for supplying mud to the face and a mud pipe for guiding mud from the face to the outside of the tunnel are laid in the tunnel,
In some cases, the muddy water and the excavated earth and sand that are supplied under pressure to the face through a mud pipe are mixed and conveyed out of the tunnel through a mud pipe. In such a case, it is necessary to sequentially extend the sludge pipe and the sludge pipe toward the face as the shield machine moves forward. However, in recent years, labor saving and automation of shield construction have been demanded, and therefore, provision of means capable of efficiently performing such a pipe extension work has been desired.

Means for Solving the Problems The invention of claim 1 is a method for laying a plurality of pipelines in a tunnel in a shield work, and connecting a plurality of pipes of a predetermined length in parallel and connecting them. After using a unit in which a joint is temporarily attached to one end of each tube, the unit is transported to the laying position and arranged in front of the already laid unit, and each tube of those units is connected to each other by the joint. It is characterized by the following.

Further, the invention according to claim 2 is an apparatus for laying a pipeline in a tunnel in a shield construction, and a laying truck that can be run directly on the pipeline to be laid,
A transport vehicle for loading a tube material to be laid in parallel in the tunnel in parallel with the laying vehicle and transporting the tubing material to the laying position, and laying the tubing material transported by the transport vehicle on the laying vehicle. And a joint fastening means for fastening a joint for connecting the pipe material lowered to the laying position to the end of the laid pipe line. Things.

"Action" The method of the present invention is to sequentially connect units formed by arranging and connecting a plurality of pipes in the longitudinal direction,
A plurality of pipelines are laid at the same time and extended toward the face.
The connection between the units is performed by connecting the respective tubes constituting the unit with joints, and these joints are temporarily mounted in advance on one end of each tube of each unit.

Further, in the apparatus of the present invention, the pipe material to be laid is loaded on the transport trolley, transported to the laying position, and the transported tubing material is lowered to the laying position by a hanging means such as a crane mounted on the laying truck. Then, the base end of the pipeline is connected to the distal end of the already laid pipeline by a joint, and the joint is fastened by a joint fastening means mounted on the laying truck.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 3 show one embodiment of a pipeline laying device according to the present invention. This apparatus is for laying two pipelines, i.e., a mud feeding pipe 1 and a mud discharging pipe 2 side by side in a tunnel, and includes a first bogie 4, 2 on which two hose reel units 3 are mounted. A second carriage 6 on which two plunger valve units 5 are mounted, a third carriage (laying carriage) 9 on which two cranes (suspension means) 7 and two joint fastening means 8 are mounted, and a conveyance carriage 10 It has.

The first bogie 4, the second bogie 6, and the third bogie 9 are connected to a rear side of a shield machine (not shown) in that order, and run on a rail 11 laid on a side in the tunnel. The sludge pipe 1 and the sludge pipe 2 are laid side by side inside the rail 11. In addition, the above-mentioned transport cart 10 is for loading a pipe material to be laid and transporting it to the laying position, and runs on another rail 12 laid in the center of the tunnel.

In the apparatus of the present embodiment, as shown in FIG. 5, a pipe material to be a mud feed pipe 1 and a pipe material to be a mud discharge pipe 2 are previously connected with a connecting member.
A unit 21 connected by 20 is used, and the unit 21 is laid on the distal end side of the already laid pipe to extend the pipe.

Pipe material and mud pipe 2 that will be the mud pipe 1 of the unit 21
The joints 22, 22 are attached to the distal end portions of the pipe material to be temporarily fastened. These joints 22 have a short tubular appearance, and are mounted on the outside of the butted portion of the pipes to be connected so that the pipes can be firmly connected only by tightening the two bolts 22a, 22a. As shown in FIG. 4, each of the bolts 22a is temporarily mounted on each tube in a vertical direction outside the unit 21.

The connecting piece 20 is provided with a locking piece 24 used when the unit 21 is lifted by the crane 7 of the third carriage 9. The sludge pipe 1 has a slightly larger diameter than the sludge pipe 2.

On the other hand, the hose reel unit 3 mounted on the first carriage 4 is configured to draw out the hose 3b from the reel 3a as the shield machine advances. The plunger valve unit 5 mounted on the second carriage 6 is
A hose 5a and a connecting pipe 5b are connected between the hose reel unit 3 and the laid pipe, and the pipe is closed when the pipe is extended to prevent outflow of muddy water and maintain an internal pressure. It is for doing. The hose reel unit 3 and the plunger valve unit 5 may be any of those widely used conventionally. The connection between the connection pipe 5b of the plunger valve unit 5 and the already installed pipe is connected by the same joint 22 as the above-mentioned joint 22.

Further, as shown in FIG. 3, the crane 7 mounted on the third truck 9 is for lifting the above-mentioned unit 21 loaded and transported on the transport truck 10 and hanging it down to the laying position. is there.

The third carriage 9 is provided with two joint fastening means 8, 8 at the front and rear thereof. Each joint fastening means 8
As shown in FIG. 4, a total of four bolts 22a of two joints 22, 22 can be simultaneously tightened and loosened by two torque wrenches 8a, 8a. These fastening means 8, 8 are provided so as to be movable in the front-rear direction and the up-down direction, and the pair of clampers 8b, 8
It is assumed that the joints 22 and 22 can be clamped by b,
After the joints 22, 22 are clamped by the clampers 8b, 8b, and the bolts 22a are loosened by the torque wrenches 8a, 8a, the joints 22, 22 are moved by the fastening means 8 in the front-rear direction.
1 is configured to be slidable in the longitudinal direction.

A procedure for laying a pipeline by the apparatus having the above configuration will be described with reference to FIG.

First, in the tunnel, a rail 12 for running the transport vehicle 10 and a rail 11 for running the first truck 4, the second truck 6, and the third truck 9 are laid in advance, and the rails are provided. A support member 40 for positioning and supporting the pipeline (for example, an I-beam is preferably used as shown by a dashed line in FIG. 5) is installed at a predetermined position inside the inside of the pipe 11.

Then, the state of FIG.
A pipe is already laid down to a position below, and from the state where the connecting pipe 5b of the plunger valve unit 5 is connected to the distal end by the joint 22, the pipe is extended to the face side. Then, the plunger valve unit 5 is operated to close the pipe, and the front-side joint fastening means 8A is moved from the standby position shown in (a) to clamp the joint 22 as shown in (b), and After loosening the bolt 22a of the joint 22 with the wrench 8a, the joint 22 is slid backward as shown in (c). Thereby, the pipe and the plunger valve unit 5 are separated.

Next, as shown in (d), the carts 4, 6, and 9 are simultaneously moved forward and stopped at a position where they have moved forward by the length of the unit 21 to be added. Then, the carriage 10 carrying the unit 21 is stopped beside the third carriage 9, and the locking pieces 24, 24 are hooked on the hooks of the cranes 7, 7, as shown in FIG. Is lifted by the cranes 7, 7 and lowered to the laying position, and as shown in (f), the rear end of the unit 21 is abutted against the front end of the laid pipe, and the front end of the unit 21 is connected to the plunger valve units 5, 5. Connection pipe 5
Match b. Then, the joint 22 temporarily attached to each tube of the unit 21 is clamped by the joint fastening means 8A, and the joint 22 slid backward first is clamped by the joint fastening means 8B on the rear side. As shown, the joints 22, 22 are slid forward by the fastening means 8A, 8B, respectively, and the bolts 22a of the joints 22 are tightened by the torque wrench 8a. In addition, an appropriate clamping device for clamping and positioning the unit 21 is mounted on the third carriage 9, thereby performing accurate positioning of the unit 21 before operating the joint fastening means 8.
In addition, it may be configured to prevent the displacement.

As described above, since one drawing operation is completed and the state of (a) is reached, the above procedure may be repeated thereafter in accordance with the advance of the shield machine.

As described above, the pipeline laying apparatus having the above-described configuration conveys the unit 21 to be laid by the transport trolley 10 and lowers it to the laying position by the crane 7 mounted on the third trolley (laying trolley) 9, and 21 is connected to the already laid pipe by fastening the joint 22 by the joint fastening means 8, so that a plurality of pipes can be simultaneously drawn, and Is realized,
Work efficiency can be greatly improved. Each of the above operations can be automatically executed by controlling based on a preset program, so that automation of pipeline laying work can be realized, and as a result, shielding This can save labor and automate construction work.

In the above embodiment, a unit in which two pipes are connected is used. However, a unit in which a larger number of pipes are connected may of course be used, and each pipe may be arranged not only horizontally but also vertically. It is also possible to form a unit in a connected form. When the above-mentioned apparatus is adopted, it is not always necessary to use the tube material as a unit, and the tube material may be stretched one by one. In the above embodiment, the first to third trucks are connected. However, a hose reel unit, a plunger valve unit and the like are mounted on a truck (third truck in the above embodiment) on which a crane and a joint fastening means are mounted. The first in the above embodiment
The cart and the second cart may be omitted. Further, in the apparatus of the above embodiment, the crane is mounted on the laying trolley, but other appropriate suspending means may be employed instead of the crane.

[Effects of the Invention] As described in detail above, the method of the invention of claim 1 connects a plurality of pipes and sequentially connects units each having a joint temporarily attached to one end of the pipes. By laying and extending multiple pipelines at the same time, work efficiency can be greatly improved, and such work can be automated, and as a result, labor and automation of shield work can be achieved. The effect is excellent.

In the apparatus according to the second aspect of the present invention, the pipe is transported by the transport trolley, the transported tub is lowered to the laying position by the suspending means, and the joint is fastened by the joint fastening means mounted on the laying trolley. Thus, since it is configured to be connected to the laid pipe, the mechanization of the pipe extension work can be realized, and the working efficiency can be greatly improved, which is suitable for use when performing the above method.

[Brief description of the drawings]

The drawings show an embodiment of the pipeline laying device according to the present invention. FIG. 1 is a side view showing an overall schematic configuration of the device of the present embodiment, FIG. 2 is a plan view thereof, and FIG. FIG. 4 is a front view showing a schematic configuration of the joint fastening means, FIG. 5 is a perspective view showing an example of a unit laid by the apparatus, and FIGS. It is a figure showing the procedure of pipeline construction work in order of a process. 1 ... mud pipe, 2 ... mud pipe, 3 ... hose reel unit, 4 ... first truck, 5 ... plunger valve unit, 6 ... second truck, 7 ... crane (suspension means) ), 8
(8A, 8B) …… Fitting fastening means, 8a …… Torque wrench, 8b
… Clamper, 9… 3rd truck (laying truck), 10… Transportation truck, 11,12… Rail, 20… Connector, 21… Unit, 22… Joint.

Continuation of the front page (72) Inventor Exit Taneomi 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Taikichi 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Shunichi Sakai 2-16-1, Kyobashi, Chuo-ku, Tokyo, Shimizu Construction Co., Ltd. (72) Inventor Kenji Watanabe 2-16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Invention Person Hideki Hagiwara 2-16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Hiroshi Iijima 2-161-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Hiroyuki Kubo Tokyo 2-16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Toru Goto 2-16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Yoshiaki Negami Kyobashi, Chuo-ku, Tokyo 2-16-1, Shimizu Corporation (72) Inventor Kazuo Miyazawa 2 Kyobashi, Chuo-ku, Tokyo Eye No. 16 No. 1 Shimizu Construction Co., Ltd. (56) Reference Patent flat 3-183897 (JP, A) Tokuoyake Akira 55-18830 (JP, B2) (58 ) investigated the field (Int.Cl. ^6, (DB name) E21D 9/06 301

Claims (2)

(57) [Claims] 1. A method of laying a plurality of pipes in a tunnel in a shield work, comprising connecting a plurality of pipes of a predetermined length in parallel and temporarily attaching a joint to one end of each of the pipes. A pipe laying method in a shield construction, comprising transporting the unit to a laying position, arranging the unit in front of the laid unit, and connecting pipes of the units by the joints. Method. 2. A device for laying a pipeline in a tunnel in a shield work, comprising: a laying truck which can run freely right above a pipeline to be laid; A transport vehicle for loading the tubing to be laid and being transported, and transporting the tubing to the laying position, and a suspending means for suspending the tubing transported by the transport trolley and lowering the tubing to the laying position, A pipe laying device comprising: a joint fastening means for fastening a joint for connecting a pipe material dropped to a laying position to a tip of a laid pipe.