JPS58117197A - Method of piping muddy-water feed and discharge pipe in method of muddy water type propelling construction - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a piping method for sequentially arranging feeding and draining water pipes within a buried pipe in a mud water propulsion method.

Generally, in the mud propulsion method, a starting shaft and a reaching shaft are constructed in the ground, and a shield excavator is used as a leading pipe to excavate from the starting shaft side toward the reaching shaft. The projector presses and buries the rocks one after another using a Java propulsion machine installed in the starting shaft.

In this case, in a mud excavator, a feed and mud drain pipe equal to the length of the buried propulsion pipe is laid inside the buried pipe when the buried propulsion pipe is connected, and its front end is connected to the feed pipe in the already buried pipe. It is connected to the rear end of the drainage pipe. and,
Once the excavator reaches the shaft and the underground pipe has been laid,
This involves removing the transport and sludge water pipes, but this removal involves separating the joint parts of the transport and sludge water pipes individually and transporting them to the shaft, or transporting only the vicinity of the excavator, and removing the joints of the sludge pipes. After cutting off the parts, a long pipe is installed in the shaft, and the whole drainage pipe is pulled into the shaft, and the joint parts are separated and removed inside the shaft.

However, this work to remove the conveyance and sludge drainage pipes is difficult, especially when the buried pipe is a small-diameter pipe, and it is difficult to separate and transport the joysite. When pulled out from inside the pipe, there is a drawback that it damages the inner wall surface of the buried pipe, and sometimes there is a danger that the wire of the Lycilla may be cut.

In addition, if a sludge water pipe is installed inside a small-diameter underground pipe,
This was a major obstacle and was dangerous for workers to pass through the buried pipe.

In order to eliminate such drawbacks, the present invention is designed to move a pipe carrier in the direction of the length of the pipe when transporting and discharging water pipes into the pipe to be buried. The sludge pipe is sent to this pipe receiving truck, which receives the drainage water pipe and lays it in the excavated ground together with the buried pipe.After the installation is completed, a series of transport,
Embodiments of the present invention This invention provides a piping method for transporting and draining sludge water pipes in a mud water propulsion method, which is characterized in that the sludge water pipes can be drawn and removed from the buried pipe while running a pipe carrier. To explain the drawings, the mud propulsion method is a starting shaft (2) built in the ground (1) as is well known.
) to the reaching shaft (not shown) using a mud shield excavator (8), and at the same time using a reaction force receiver (4) and a press-in device (5) installed in the shaft (2). Standard length pipes to be buried such as seven neem pipes (hereinafter referred to as buried pipes)
(6) is pressed in as the shield excavator (δ) excavates, and the earth and sand excavated by the mud shield excavator (8) is sent from the tasik (7) installed on the ground to the mud water pipe. (8) Through the shield excavator (8) drilling chamber (9)
The muddy water sent to the tank is sent to the tank (7) through the drainage pipe αQ, where it settles and is disposed of. In addition, as mentioned above, a shield excavator (δ
) excavates, and when the buried pipe (6) is press-fitted to a predetermined length by the press-in device, the shield excavator (3) stops excavation, feeding, and circulation of waste water, and the buried pipe (6) is inserted into the buried pipe (6). After separating the joint between the rear end of the installed feed/sludge drain pipe (8) Ql) and the feed/sludge drain pipe (8) α6 from the ground and retracting the press-in device (5), Insert the next pipe (6) to be buried between the buried pipe (6) and the press-in device (5), and disconnect the feeding and draining water pipe (8) αQ of approximately the same length as the buried pipe (6). It is used to add and connect parts.

In this way, at the same time as the buried pipe (6) of a fixed length is connected, the feeding and draining water pipe (8) with a length approximately equal to the length of the buried pipe (6) is connected.
When adding olG sequentially, in the method of the present invention, these feeding and draining water pipes (8) (g) are placed on a trolley (b) and arranged on the lower surface of the buried pipe (6). It is.

As shown in Figure 2, the trolley (b) has semicircular tube supports (b) fixed to both front and rear ends of the rectangular frame (b), and the frame. In some cases, the brackets (B) that are integrally hung in the center of both sides of (B) support the wheels (), or as shown in Fig. It is formed by providing semicircular notches on both sides of the front and rear rods of the body (B), or as shown in Fig. 1I, the rectangular frame (B) is used to attach If the frame body (B) is stabilized by the wheel), semicircularly curved pipe supports (B) (B) are installed only at the center of both sides of the frame body (B). A piece that is fixed in one piece is used.

This trolley (B) is used for feeding a fixed length, and each time a drainage pipe (8) αQ is added, at least one unit is used for each length pitch of the buried pipe (6). A mud water pipe (8) and a mud discharge pipe αQ are placed on (b), and the mud water propulsion method is carried out as described above.

The frame of the trolley (B) (B) that makes instant contact with the length of the pipe (
A rectangular tread (b) is installed between the upper surfaces of (b) to form a passage with a series of treads (b) inside the buried pipe between the shield excavator (8) and the starting shaft (2), allowing for safe work. In this way, when the shield excavator (8) reaches the reaching shaft,
The feed and drainage water pipe (8) between the vicinity of the shield excavator and the shaft side
) Separate the αQ di3ide (b), then transport it from the starting shaft (2) side using an appropriate traction means, and drain the mud into the drainage pipe (8).
When αQ is towed, the wheels (b) of the trolley (b) roll on the underside of the underground pipe, and a series of transmission and sludge water pipes (8) that distribute power over the entire length of the underground pipe (8) and αQ launch shaft (2). They are drawn to the starting shaft (2) and sequentially solve the di3isid θ→ of the feed and mud drain pipes, which are pulled out one after another into the starting shaft (2), and the fixed length feed and drain mud water pipes (8 penalty 0, trolley (b), treadle) are solved one after another. (b) will be removed.

As described above, according to the present invention, the method for piping the 5 sludge water pipe into a pipe, after connecting and burying a pipe body such as a neem pipe, the trolley can be moved into the buried pipe by simply pulling the sludge water pipe from the wellhead side. It can be moved over the top of the pipe and pulled out of the buried pipe in a light and efficient manner, and there is no need to cut off the joints of the conveying and draining water pipes inside the buried pipe, as is the case with conventional methods. It is extremely easy to carry out the work of separating, transporting, and removing the sludge water pipe, but the above-mentioned work is dangerous, especially when the buried pipe is a small-diameter neem pipe. However, in the present invention, this risk can be completely eliminated.

Furthermore, when the mud water supply and drainage pipes are pulled out, these pipes do not come into sliding contact with the inner surface of the buried pipe, so the quality control of the pipe line is improved without damaging the buried pipe.

Additionally, during the construction of buried pipes, by installing treads between the upper surfaces of the carts that support the conveyance and drainage water pipes, a safe passage can be secured inside the buried pipes, improving work safety and efficiency. It is possible.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a simplified vertical sectional side view of the construction state, FIGS. 2 to 1 are perspective views of carts of different shapes, and FIG. A vertical cross-sectional front view of the main parts with the mud pipe supported, and Figure 6 is a side view thereof〇(1)...Ground, (2)...Starting shaft, (8)-Fist/shield excavator , (6)... Buried pipe, (8) αQ・
...Feeding, drainage water pipe, (B)...Dolly, (B)...Pipe support part, (B)...Treadboard 1, (B)...J3 side part. Patent applicant Okumura Co., Ltd. Group 2 Be l To 1 → Be A → Be 4 A 4 → Be 5 To the medical examination 6 O

Claims (1)

[Scope of Claims] ■ In response to propulsion by the slurry propulsion method, the lower end of the frame having a rectangular plan shape is used when the slurry water pipes are successively connected and piped into fixed-length pipes that are press-fitted and buried. A pipe support truck, which is equipped with wheels and pipe support parts on both sides of the frame body, is disposed inside a fixed-length pipe, and the pipe support part of the pipe support car is fed to support the sludge removal pipe. A piping method for feeding and draining water pipes in a mud water propulsion construction method, which is characterized by connecting the mud water pipes. 0. A piping method for feeding and draining water pipes in a mud water propulsion method according to claim 117, characterized in that a step board is installed between the frames of adjacent pipe carriers in the pipe propulsion direction.