JPH06280295A - Method of laying long pipe by suspension - Google Patents

Abstract

PURPOSE:To suspend a pipe and lay it in an excavated ditch even when the pipe is very long by suspending cables installed near both end sections of a lifting beam by a lifting gear and slinging the two positions of the pipe by slings suspended from both end sections of the lifting beam. CONSTITUTION:In a suspension layer of a long pipe, first shackles 2 are mounted rotatably onto top faces near to both end sections of a lifting beam 1 respectively, one end sections of a cable 3 are set up to the shackles 2, and the other end sections are caught to the hook 4 of a lifting gear consisting of a wrecker and the lifting beam 1 is suspended. A pair of sling hook 38 are suspended respectively from both end sections of the lifting beam 1, and the two positions of the pipe 72 are slung by slings mounted on the sling hooks 38, and the pipe is supported and laid in an excavated ditch 76. Accordingly, the space of the slings 52 can be increased, thus stably suspending the pipe without sliding in the pipe axial direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for suspending a long pipe in an excavation trench and its apparatus.

[0002]

2. Description of the Related Art Conventionally, to install a long pipe in a trench,
Hook one end of the two ropes on the hook of a lifting machine such as a tow truck, connect the slings to the other ends of the ropes, wind this sling around two locations on the long pipe, and lift the pipe. I was going.

[0003]

The length of the pipe suspended in the excavation groove by the conventional long pipe suspension method is generally about 10 m, and the maximum length is about 12 m. It was difficult to suspend the tube.

If the pipe installed in the excavation groove is short, the work in the excavation groove is increased, and dangerous and difficult work is increased, resulting in poor work efficiency. The present invention has been made in view of the above-mentioned matters, and an object of the present invention is to make it possible to easily suspend and install a pipe in an excavation trench even if the length of the long pipe is increased.

[0005]

According to a first aspect of the present invention, a rope 3 attached near both ends of a suspension beam 1 is suspended by a hoist, and a pair of suspension ropes 1 are attached from both ends. The sling hook 38 is hung and suspended, and the sling 52 attached to the sling hook 38 suspends the pipe 72 at two positions, and the pipe 72 is suspended in the excavation groove 76 and installed. .

A second aspect of the present invention is the same as the first aspect of the present invention, in which the hoisting piece 11 that suspends the hoisting machine 33 is inserted between the hoisting beam 1 and the sling hook 38, and the pipe 72 is digged.
6, the suspension piece 11 is supported by the support beam 24 which is horizontally mounted on the excavation groove 76, and the hoisting machine 33 is used to support the pipe 7.
2 was installed and the long pipe suspension method was adopted.

A third aspect of the invention is a method of suspending a long pipe according to the second aspect of the invention, in which the support beam 24 is moved along the excavation groove 76 to install the pipe 72. In a fourth aspect of the invention, the ends of the rope 3 are attached near both ends of the suspension beam 1, and a pair of sling hooks 38 are provided from both ends of the suspension beam 1.
And the slings 52 for suspending the pipes are attached to the sling hooks 38 to form a long pipe suspending device.

In a fifth aspect based on the fourth aspect, the hoisting machine 3 is provided between the suspension beam 1 and the sling hook 38, respectively.
A long piece suspending device was provided by inserting a suspending piece 11 in which 3 was suspended.

[0009]

In the first and fourth aspects of the present invention, the rope 3 suspended from the hoisting machine suspends near both ends of the suspension beam 1 and suspends it from both ends of the suspension beam 1. Since the suspended sling 52 suspends the pipe 72 at two points, the sling 52 that suspends the pipe 72 can be suspended upward in the vertical direction, and the interval between the two slings 52 can be increased.

Therefore, since the sling 52 does not slip in the axial direction of the pipe, and the pipe 72 is hoisted by the sling 52 having a large gap, the sling 52 can be stably hoisted and hung. Even if the pipe 72 is elongated, the pipe 72 can be easily and stably suspended at a desired position.

The second and fifth aspects of the present invention further include the excavation groove 76.
Support the hanging piece 11 with the support beam 24 that is laid horizontally,
The front and rear portions of the pipe 72 can be moved vertically by the two hoisting machines 33, so that the longer pipe 72 can be easily suspended at a desired position.

According to the third aspect of the invention, further, by moving the support beam 24 along the digging groove 76, it is easy to move the pipe 72 largely along the digging groove 76.
Furthermore, the elongated tube 72 can be easily moved in the tube axis direction and suspended.

Since the pipe 72 can easily move along the digging groove 76, it is easy to join the end face of the pipe 72 installed in the digging groove 76 to the end face of the pipe 72 to be installed thereafter. is there.

[0014]

EXAMPLES Examples of the present invention will be described below. 1 to 17 are diagrams for explaining one embodiment of the present invention.

The long pipe suspending method and its apparatus of this embodiment are the method and apparatus for suspending a long pipe 72 such as a gas pipe into the excavation groove 76 shown in FIGS. The long tube suspending device used in this example is as described below. That is, the first shackle 2 is rotatably attached to the upper surface near both ends of the suspension beam 1 formed of the H-shaped steel shown in FIGS. 1 to 3, and the rope is attached to the first shackle 2, respectively. Attach one end of 3
The other end of the suspension beam 1 is hooked on a hook 4 of a lifting machine composed of a wrecker to suspend the suspension beam 1.

A second shackle 5 is rotatably attached to the lower surfaces of both ends of the suspension beam 1, and a third shackle 6 is rotatably attached to the second shackle 5.

The third shackle 6 has a hanging piece 11
Are rotatably hung by upper suspension holes 13 (FIG. 5), and the suspension piece 11 includes a piece body 12 as shown in FIGS. 5 to 10. Has an upper suspension hole 13 in the upper part and a lower suspension hole 14 in the lower part.

Support plates 18 are welded and attached to the central portions of both side surfaces of the piece body 12, and side plates 19 formed by angles are welded to the side ends of the support plates 18, respectively. Attached by the side plate 19
Are provided so as to hang down from the side end of the support plate 18, and two fixing plates 20 are attached by welding to each side between the side surface of the piece body 12 and the upper surface of the support plate 18.

The suspension piece 11 is formed so as to be placed and supported on the two support beams 24 as shown in FIGS. As shown in FIGS. 11 and 12, the support beam 24 is made of steel and formed into a rectangular tube shape, and the handling 25 is attached to both ends thereof.

Further, the suspension piece 11 and the support beam 2
As shown in FIG. 3, a lateral reference lever block 29 is mounted between the four ends, and is formed so that the hanging piece 11 can be moved laterally.

A hoisting machine 33 formed of a chain block is suspended in each of the lower hanging holes 14 of the hoisting piece 11, and a hoisting hook 34 of the hoisting machine 33 has
Sling hooks 38 are suspended from each.

As shown in FIGS. 13 and 14, the sling hook 38 is formed by welding a steel hoisting plate 40 to the upper surface of a steel substrate 39 so as to stand upright on the hoisting plate 40. A hoisting hole 41 is provided, and further, two upper reinforcing plates 42 that are welded to stand upright on the substrate 39 fix both end portions of the hoisting plate 40.

On the lower surface of the substrate 39, two hanging plates 46 are provided by being welded and hung at intervals, and a central portion between the substrate 39 and the hanging plates 46 and 46 is provided. , The lower reinforcing plate 48 is welded and fixed, and the two suspension plates 4
Two suspension pins 49 are inserted into the suspension holes 47 provided in each of the pairs 6 and are detachably fixed by small pins 50.

A nylon sling 52 for suspending the pipe 72 is attached to the suspension pin 49 of the sling hook 38 (FIG. 3). FIG. 15 shows another embodiment of the hanging pin 49, in which a ring 51 is provided on the head and a screw provided at the tip is screwed with a nut to be fixed.

16 and 17 show the support beam support 5
5 is shown. The support beam support 55 includes a support body 56 having a U-shaped cross section, and side plates 58 are fixed to the outside of the side plates 57 of the support body 56. There is.

Below the U-shaped support body 56,
Three rollers 59 are inserted and are rotatably attached to the support body 56 by shafts 60, respectively.
Tension metal fittings 61 are attached to the front and rear portions of the upper surface of the U-shaped support body 56. The tension metal fittings 61 have a reinforcing member 62 formed on both sides by angles.
Is fixed on the upper surface of the bearing main body 56 by 2
It is formed so that the book supporting beam 24 can be placed.

Then, the pulling metal fitting 61 is formed so that the vertical reference lever block 63 shown in FIG. Further, as shown in FIGS. 4, 16 and 17, the traveling is facilitated by traveling on the upper surface of a traveling platform 67 formed of a steel rectangular tube, and further, the outer traveling platform 67 has , A guide 68 formed by an angle is provided. Further, it is formed so that the wooden adjusting base 69 can be placed below the traveling base 67.

One embodiment of the first invention uses the long tube suspending device having the above-mentioned construction, and the other end of the rope 3 having one end attached near both ends of the suspension beam 1. Part of the sling hook 1 is hung on the hook 4 of the hoisting machine, the pair of sling hooks 38 is hung from both ends of the hanging beam 1, and the sling 52 is attached to the sling hook 38. It is a long pipe suspending method in which two positions of the pipe 72 are hung and the pipe 72 is hung and installed in the excavation groove 76.

An embodiment of the second invention is a method of suspending a long pipe in the embodiment of the first invention, wherein the suspension beam 1 and the sling hook 38 are provided between the suspension beam 1 and the sling hook 38 as shown in FIGS. The pipe 72 is suspended in the excavation groove 76 by inserting the hoisting machine 33, which is formed of a chain block, into the excavation groove 76.

Then, as shown in FIGS. 2 and 3, two support beams 24 are laid horizontally on the excavation groove 76, and the support beam 24 of the support beam 24 is placed so that the suspension piece 11 is placed on the support beams 24. In addition to positioning, the suspension piece 11 is laterally moved by the lateral quotation lever block 29 shown in FIG. 3, the lateral position of the pipe 72 is determined, and the suspension piece 11 is hung and placed on the support beam 24. To do.

Next, the two hoisting machines 33 are operated to operate the pipe 7
It is a method of suspending a long pipe that determines the vertical position of 2.
An embodiment of the third invention is, in the method of suspending a long pipe in the embodiment of the second invention, as shown in FIGS. 67 is installed, and the support beam support 55 is mounted on the traveling platform 67.
The roller 59 of FIG.
As shown in FIG. 5, the method is a method of suspending a long pipe in which the pipe 72 is moved along the excavation groove 76 by using the vertical reference lever block 63.

Further, as another embodiment, as shown in FIG. 17, there is a construction method in which a wooden adjusting table 69 is laid under the traveling table 67. And in the said Example, the 18-m long pipe 72 could be easily suspended in the excavation groove 76.

[0033]

According to the first and fourth inventions, the rope 3 suspended from the hoisting machine suspends the suspension beam 1 near both ends thereof.
Since the sling 52 suspended from both ends of the suspension beam 1 suspends the pipe 72 at two positions, the pipe 72 is suspended.
The sling 52 that suspends the sling is hung vertically upward, and the interval between the slings 52 can be increased.

Therefore, the sling 52 does not slip in the axial direction of the pipe, and the pipe 72 has a large gap.
Since it is possible to stably hang the pipe 72 by using 2, it is possible to easily hang the pipe 72 stably at a desired position even if the pipe 72 to be placed is long.

The second and fifth aspects of the present invention further include the excavation groove 76.
The hanging beam 11 is supported horizontally, and the hoisting machine 33 is used to vertically move the front and rear of the pipe 72 by the two hoisting machines 33 to easily move the elongated pipe 72 to a desired position. Can be hung on.

In the third aspect of the present invention, further, by moving the support beam 24 along the excavation groove 76, the longer tube 72 can be easily moved in the tube axis direction and suspended.

Since it is easy to move the pipe 72 along the excavation groove 76, it is possible to join the end surface of the pipe 72 installed in the excavation groove 76 to the end surface of the pipe 72 to be installed thereafter. It's easy.

[Brief description of drawings]

FIG. 1 is a perspective view of a tube according to an embodiment of the present invention in an initial stage of hanging.

FIG. 2 is a perspective view of a pipe according to an embodiment of the present invention in a state in which the pipe has been suspended.

FIG. 3 is a front view of an embodiment of the pipe suspending device of the present invention.

FIG. 4 is a perspective view showing an embodiment in which the support beam of the present invention is moved along a digging trench.

FIG. 5 is a front view of an example of a suspension piece and a support beam.

FIG. 6 is a side view of an embodiment of the suspension piece and the support beam.

FIG. 7 is a front view of an example of the parts of the hanging piece.

FIG. 8 is a plan view of an example of a hanging piece component.

FIG. 9 is a front view of an example of the parts of the hanging piece.

FIG. 10 is a side view of an example of the parts of the hanging piece.

FIG. 11 is a front view of an example of the support beam.

FIG. 12 is a side view of an example of a support beam.

FIG. 13 is a front view of an example of the sling hook.

FIG. 14 is a side view of an example of the sling hook.

FIG. 15 is a front view of another embodiment of the hanging pin.

FIG. 16 is a side view of an embodiment of the support beam support.

FIG. 17 is a front view of an embodiment of a support beam support.

[Explanation of symbols]

 1-Suspending beam 3-Rope 11-Suspending piece 24-Supporting beam 33-Hoisting machine 38-Sling hook 52-Sling 72-Pipe 76-Drilling groove

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Katsuyuki Sato 4-8-3 Yatsu, Narashino-shi, Chiba Building 311

Claims (5)

[Claims] 1. A rope 3 attached near both ends of a suspension beam 1 is suspended by a hoist, and a pair of sling hooks 38 are suspended from both ends of the suspension beam 1 for suspension. With the sling 52 attached to the sling hook 38,
A long pipe suspension method in which two positions of the pipe 72 are suspended and the pipe 72 is suspended and installed in the excavation groove 76. 2. Between the suspension beam 1 and the sling hook 38,
The hanging pieces 11 that hang the hoisting machine 33.
After suspending the pipe 72 in the excavation groove 76 by inserting it, the suspension piece 11 is supported by the support beam 24 extending horizontally on the excavation groove 76, and the pipe 72 is installed by the hoisting machine 33. The long pipe suspension method described. 3. The long pipe suspension method according to claim 2, wherein the support beam 24 is moved along the excavation groove 76 to install the pipe 72. 4. A rope 3 near both ends of the suspension beam 1.
A long pipe suspending device in which a pair of sling hooks 38 are suspended from both ends of the suspension beam 1 and slings 52 for suspending pipes are attached to the sling hooks 38, respectively. 5. The long tube suspending device according to claim 4, wherein a suspending piece 11 for suspending a hoisting machine 33 is provided between the suspending beam 1 and the sling hook 38.