JPS60173295A - Press punching construction of pepe - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention involves excavating a working shaft underground, throwing a propulsion machine into the working shaft, and driving a leading propulsion pipe inserted into the working shaft using the propelling machine. A large number of the following propulsion pipes were pushed into the working tunnel one after another, and they were placed in communication with the propulsion pipe that had been pushed in earlier. This invention relates to an improvement in the method for punching out pipes by pushing them into the ground and creating pipe sounds underground using propulsion pipes.

Conventionally, as shown in FIG. 12, leading and trailing propulsion pipes (2a) are immediately underground from the working shaft [1a].

(2b)'k, when pushed by the propulsion device (4) in the working shaft (1a), and the rear throats of the seven propulsion tubes (2a) and (2b) protrude into the working shaft (18). At Megumi, the next propulsion tube to be pushed was C2b)'r cent. However, the working hole (l
a) Propulsion 'If (length at 2aL (gb) pushing force, 1E (L') t-m must be maintained, and in reality V
A work shaft (1 g) with a length of ~Jm (L') was excavated and formed, making it difficult to secure the entire construction area as in urban areas1! j8IrJPIn places where there are many underground objects, there are often drawbacks that make it impossible or difficult to implement.

Since the volume of the work shaft (la) becomes considerably large, it becomes difficult to collect excavated soil and buried soil, and there is a drawback that a large amount of expense is required for excavation and disposal of the soil.

The purpose of the present invention is to reduce the length of the seven propulsion pipes so that the excavation and formation of a working shaft can be performed with the length of the propulsion pipes being small in the pushing direction, and to reduce the amount of soil handled. The point is to make it so.

The characteristic means of the uninvented pipe punching method is to form a protrusion for inserting the propulsion pipe or for installing the propulsion machine 1 in the bend in which the leading propulsion pipe is inserted into the work shaft excavated underground. , Push a cylindrical body shorter than the propulsion pipe into the ground using a propulsion machine in the working mine while turning it in the direction of pushing the propulsion pipe or on the opposite side, and remove the earth and sand inside the pushed cylindrical body. In addition to inserting the propulsion tube into the propulsion machine, the curved end of the propulsion tube is inserted into the cylindrical body, or the propulsion model is inserted into the entire local body. is as follows.

In other words, as shown in Fig. 2, the excavation length L) in the direction in which the propulsion tube is pushed is
It is sufficient to center the propulsion device 14) and the short cylindrical body i61, and the propulsion device +41 and the long propulsion tube (2
b) Make it much smaller than the margin (L') for k cents.

Then, the propulsion pipes (2a), (gb
) When pushing the front end of the propulsion tubes (2a) and (2b) into the warehouse, as shown in FIGS.
61, or as shown in FIG.
1. Even though the excavation length of the mine (la) is small, the propulsion pipes (2a), (2b) and the hold propulsion machine (4) are centered as specified and pushed into the ground. It's complicated.

Therefore, even in places where it is difficult to excavate a large working shaft (1 m) t', such as in an urban area or in a place with many underground objects, it is now possible to carry out the construction sufficiently. (18) The excavation volume and storage warehouse for soil were reduced to reduce construction costs.

Next, examples will be shown.

As shown in Figure 1, 5 of 1iIFfr in which the pipe should be buried.
On the 18 side, the first and second shaft-shaped working shafts (LA)
, (lb), and the first working hole (1a).
The length of excavation in the pushing direction of the propulsion tube (t) 'c is slightly larger than the length (l) of the propulsion tube (2), and the cylindrical body 161 is inserted into the first working hole (la) as described later. The propulsion machine 14)
Set the dimensions to be large enough to set the

As shown in Figure 2, an earthen wall (5) made of steel or the like is formed in the first working shaft (la), and a propulsion jack (4a)
, Bank concrete (4b), Guide (4c) (il
-What kind of propulsion device (4) is installed in the first working shaft (la)?
L, cutting blade (6a) shorter and larger in diameter than the propulsion tube 121;
The cylindrical body (61st meeting) was reloaded on the guide (4C) and the 8th
The shaft 161 is moved from the opening (8) of the earth retaining wall te+ to the second work desk (i
b) Push the arrow of the first working hole (ia) into the ground in the direction of cents so as not to
The earth and sand inside the cylindrical body 161 is removed artificially or by an appropriate device, and the small diameter group (6b) on the male sword side of the cylindrical body 161 is removed.
Insert cutting blade +91 into.

As shown in Figure 5, the large diameter part (6c ), drop it in front of the junkie [4a], and as shown in the solid line, drop it into the Taito (10) which was on the guide (4c), and as shown in Figure 6, drop it in front of the junkie [4a]. The cylindrical body is moved by the action between the cart 1o) which is curved along the outer peripheral surface of 2a) and the cradle which is placed on the guide (4c) and is curved along the cylindrical body t61K. (Align the propulsion tube (28) with the cylindrical cutting edge sharpened to 61 + 91,
Push the trolley 101 with the propulsion device (4) and push the propulsion tube (2a)
The curved end side of the cylindrical body (6) is fitted into the ax cutting blade (9), and as shown in FIG. 7).

How many times should the jacket (4a) be reciprocated and the sweep (7) made? Increase the propulsion Iα (2a) to the second
As shown in Fig. 8, the rear part of the propulsion tube (2a) is located within the small diameter part (6b) of the cylindrical body (6), and then, The soil in the propulsion pipe (2a) may be dislodged by unreasonable means such as being flushed into the first working shaft (la) using water supply, using a rotary ewer, or using a soil removal screw.

As shown in Figure 9, a large number of subsequent propulsion tubes (2b) purple,
Sequentially, similar to the above-mentioned JIi propulsion tube (2a), the first
I put it in the saba shaft (la), insert it into the cylindrical body (6), put it back on the trolley-101, return it to the second working shaft (1b) and push it with the propulsion machine (4). However, due to the fact that the propulsion tube (2a) or (2b) pushed in earlier was brought into contact with the following propulsion tube (2b), the propulsion tube (2a) or (2b) underground. ) are all recycled and integrally propelled into the second working shaft (lb) of the warehouse, and as shown in Fig. 1θ, Kb of pipe sauce is transferred from the first working shaft (la) to the second working shaft C1b) through the propelling pipe. Formed in the ground by (gm) and (2b), working pit; (la) and '(lb) for trolley, pedestal (11), cutting blade (9)? to recover.

Finally, a short 4-tube? The propulsion device (4) pushes the pipe into the circuit, and the first work J'A (l
a), in contact with g in a continuous state, and the first working hole (
161 cylindrical bodies were recovered from the first working shaft (la) and placed above ground in the first and second working shafts (la) and (lb). Connect the extraction pipe to the vibration line or
Work fA (l g ) and second work J3'c (l b
) to - gasp Ill! The existing building facing I/'i! Exclusive eC pipeline established by Ifr? Take appropriate measures such as connecting,
Backfill the first and second working pits (la) and (lb).

Next, another example will be described.

Work shafts (la) and (lb) are formed, for example, on a slope @
The propulsion tube C2a) may be pile-shaped.

When (2b) is pushed toward the ground surface such as a slope, it is only necessary to excavate and form seven working holes (la).

A specific configuration of the propulsion device (4) includes, for example, a propulsion tube (2a).

(2b) Is it possible to change the propulsion tubes (2a) and (33b) as appropriate, such as allowing full rotation, and are the propulsion tubes (2a) and (33b) made of suitable materials such as fuse pipes or steel pipes? Available.

The leading ifif propulsion tube (2a) may be formed into a cutting blade (91 fixed type) and recovered; in that case, the trailing propulsion tube (2b)
) may be shorter.

Propulsion pipe (2B) when all # pipes are installed in the pipe ill.

(2b) and the conduit may be filled with water flow or total air flow, and between the conduit, for example, cable k
You may use it for Jl\i or for other purposes.

1i! 7+ shaped body 161', as shown in FIG.
From the work shaft (la), the propulsion pipes C2a), C2b) are rotated in the opposite direction to the pushing direction and pushed into the ground, and the propulsion machine 141f
Even if the elmL is inserted into the cylindrical body (61), the length of excavation (L) of the working shaft (1a) can be reduced in the same way.

The cylindrical body (6) can be modified in shape, structure, material, etc., and may be left underground.

In addition, the existing push-out construction method, the starting shaft of Mizumouga, and the propulsion work using a horizontal rotary cutter/,! , : can also be applied to
In both cases, is the amount of tube propulsion force excavated in the working hole (LA) excavation formation? can be reduced.

[Brief explanation of drawings]

FIGS. 1 to 10 are explanatory diagrams of the worker's hand 1110 in the first embodiment of the misfire. FIG. 11 is an explanatory diagram of another embodiment of the present invention. Figure 12 is an explanatory diagram of a conventional example. (la) ・=one working pit, (2a), (2b)
・"-41L advance tube, (4)... push, a machine, (6
1... Cylindrical body. Agent Patent Attorney Osamu Kitamura

Claims (1)

[Claims] A working shaft (la) i is excavated and formed underground, and seven working shafts (la)
All propulsion machines (4) are installed inside the building, and the work shaft (18) described in II.
The leading propulsion tube (2a)'i inserted into the propulsion rock (4) was pushed into the seventh working hole (la) Changoman, and a large number of subsequent propulsion tubes c2t+)h1+Utaji, myJ record chestnut work l
a) into the propulsion tube (2a) that was pushed in first or (
2b), press the promotion officer (4) in the same direction as the promotion official (2a), and
Underground pipes (1
1) This is a method of punching out a pipe to form a thrust pipe (2a). (2b) For cooling or propulsion equipment (4) For forming a narrow warehouse for re-construction, geJ propulsion tube (2a), (2b) Cylindrical body with short edges・61ヲ, IJII liF, propulsion tube (2a) ),
(2b) When the pushing force is turned or turned to the opposite side of 7, the person pushed into the ground by the propelling impurity (4), the pushed cylindrical body (7) (2a)
, (2b) to the propulsion device (4), insert the 071 end of the seventh propulsion 'IF C2g), (2b) into the cylindrical body (61), or Machine +41 (c- A method of punching out a pipe that is installed by inserting it into the cylindrical body (6).