JP2003304628A - Method for building temporary electrification pole - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for building a temporary electrification pole, which can shorten the time of restoration works for building the temporary electrification pole to one fourth of a conventional method, thus enabling a train to promptly restart to run, is enhanced in workability, without being influenced by the situation of an accident site, and reduced in cost. <P>SOLUTION: The temporary electrification pole A is constituted of an insertion pipe body 1 inserted into a buried pipe that is a broken part of an existing electrification pole, and a turnable rising pipe body 5 connected to the insertion pipe body 1. The rising pipe body 5 is constituted of a lower pipe 6 and an upper pipe 12. The insertion pipe body 1 is inserted to the buried pipe by several workers. The lower pipe 6 is connected to the insertion pipe body 1 by a connecting pin in a state of falling down over the ground, and the upper pipe 12 is connected to the lower pipe 6. Subsequently, the rising pipe body 5 is raised pivoted at the connecting pin using a traction rope, and the insertion pipe body 1 and the rising pipe body 5 are fastened with bolts and nuts. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a temporary electrified pillar for promptly recovering a train track facility when the electrified pillar is broken due to a train accident, a railroad crossing accident, or the like.

[0002]

2. Description of the Related Art An electric pole that constitutes an electric vehicle facility and stands upright on the ground at a predetermined interval along a railroad track supports train track equipment including trolley wires, suspension wires, brackets, insulators, hangers, etc. The electrification column is composed of a reinforced concrete hollow tube, but it may break due to the impact of a train accident or railroad crossing accident. If the electrification pole breaks, train operation will of course be stopped, so it is hoped that it will spread quickly, but in the past, restoration work has been performed using the following construction methods. First, a depth of about 20 m
A base hole having a diameter of 0 cm and a hole diameter of about 100 cm is excavated. However,
If an excavator is used for this excavation work, the cables and the like buried along the track may be damaged. Next, the electrified poles that were transported in parallel with the excavation work are planted in the foundation holes using a crane truck to make the electrified poles for erection. Lastly, the train track equipment is supported by the built-in temporary electrification poles.

[0003]

As described above, in order to promptly restart the operation of the train, it is desired to perform restoration work promptly, but the conventional construction method for restoration work has the following drawbacks. Firstly, since excavation work for foundation holes is performed manually, it takes about 4 hours although the geology is also involved.
Second, a crane truck is used to build electrified poles,
The situation is that the work vehicle cannot work smoothly due to the situation of the accident site, for example, the difficulty of getting in the work vehicle due to the terrain, the easiness of turning of the arm of the crane vehicle depending on the presence or absence of an overhead wire, and the like. For this reason, in the conventional experience, it takes about 4 hours and 30 minutes for the recovery work. Thirdly, the cost of transporting electrified poles and the cost of operating work vehicles are required.

The present invention has been made in view of the above-mentioned drawbacks of the prior art. Since the time required for the restoration work for constructing the temporary electrified poles can be shortened to about 1/4 of the conventional method, the train It is possible to quickly restart the operation of the vehicle and to construct it at the accident site without being affected by the situation, so it has excellent workability, and it is also a temporary facility that can reduce the transportation cost of electrified poles and the operating cost of work vehicles. The purpose is to provide a method of building and planting electrified columns.

[0005]

[Means for Solving the Problems] The means of the present invention configured to solve the above-mentioned problems is to provide a temporary electrification column to an embedded pipe part which is a remaining portion of an existing electrification column made of a reinforced concrete hollow pipe. A method of building a plant, wherein the temporary electrification pole is composed of an insertion pipe body and a standing pipe body which is connected to an upper end of the insertion pipe body and is rotatable, and the insertion pipe body is attached to the buried pipe portion. The method comprises inserting and fixing, and connecting the standing tube to the upper end of the standing tube in a lying state and then standing up, and connecting the standing tube to the standing tube.

The temporary electrification pole has an insertion tube body having a fixed joint portion at the upper end and a movable joint portion connected to the fixed joint portion through a connecting pin at the lower end. A movable joint plate which is composed of a standing pipe body that is rotatably connected, the insertion pipe body is inserted and fixed to the implantation pipe body, and the standing pipe body is laid down on a fixed joint plate of the insertion pipe body. , And then erect the standing tube with the connecting pin as a fulcrum,
Finally, the columnar tube may be connected to the insertion tube.

Further, a fixed plate and a movable plate pin-coupled to the fixed plate are provided at the upper end of the insertion pipe portion constituting the insertion pipe body.
It is also possible to fix a tube support portion composed of a tube support tube protrudingly provided on the movable plate, and insert and fix the standing tube into the tube support tube of the tube support portion.

Further, it is preferable that the standing tube body is constituted by a plurality of divided bodies in the axial direction.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. 1 to 8 show a first embodiment. First, the temporary electrification pole A whose total length is set to about 920 cm will be described. In the figure, reference numeral 1 denotes an insertion pipe body that constitutes the temporary electrification pole A, and the insertion pipe body 1 is a temporary electrification pole A.
The length of about 220 cm, which is a little more than a quarter of the total length, and the diameter of the insertion pipe portion 2 made of a steel pipe set to a size that can be inserted into the buried pipe portion 54 described later, and the upper end of the insertion pipe portion 2. It is composed of a fixed joint plate 3 butt-welded to and a plurality of reinforcing ribs 4, 4, ... Welded to the fixed joint plate 3 and the insertion pipe portion 2. As shown in FIG. 6, the fixed joining plate 3 includes a substrate 3A made of a steel plate formed in a substantially trapezoidal plane, a hole 3B formed in the center of the substrate 3A, and the hole 3A.
Bolt insertion holes 3C, 3C, ...
It is composed of a plurality of pin insertion tubes 3D, 3D, ...

Reference numeral 5 denotes a standing tube which is connected to the insertion tube 1 and stands upright. 6 constitutes the standing tube body 5 and has a length of about 30
With the lower pipe portion set to 0 cm, the lower pipe portion 6 is a pipe main body 7 made of a steel pipe, a movable joining plate 8 fixed to the lower end of the pipe main body 7, and a flange 9 fixed to the upper end of the pipe main body 7. , And reinforcing ribs 10, 10, ... For fixing the flange 9 and the movable joint plate 8 to the pipe body 7, respectively. And
The movable joining plate 8 includes a substrate 8A having a substantially semi-elliptical shape, a hole 8B formed in the center of the substrate 8A, and bolt insertion holes 8C, 8C, ... A plurality of pin insertion tubes 8D, 8 fixed to the straight edge of 8A at a predetermined distance.
And the pin insertion tube 8D is fixed to the fixed joint plate 3
, The lower tube portion 6 is inserted into the insertion tube body 1 by coaxially fitting the pin insertion tubes 3D, 3D, ...
Is rotatably connected with.

Reference numeral 12 denotes an upper pipe portion having a length of about 400 cm which is detachably connected to the lower pipe portion 6.
Is composed of a pipe main body 13 made of a steel pipe with its upper end closed, a flange 14 fixed to the lower end of the pipe main body 13, and a plurality of suspension rings 15, 15 provided on the upper end side of the pipe main body 13. is there.

Thus, the temporary electrification pole A of the embodiment is composed of the insertion tube 1 and the upright tube 5 which is detachably and rotatably connected via the connecting pin 11, and is also upright. 5 is divided into two in the axial direction, and bolts and nuts 16 and 1
It is composed of a lower pipe portion 6 and an upper pipe portion 12 which are connected by 6, ...

Next, a method for building and planting the temporary electrified pillar A having the above-mentioned structure will be described. The existing electrified pillars 51 made of reinforced concrete that have been impacted at the time of a railroad crossing accident often break at a portion protruding from the ground, and as shown in FIG. The rebars 52, 52, ... Are bent. First, a work of cutting the reinforcing bar 52 is performed to separate the collapsed upper side pipe portion 53 from the buried pipe portion 54 which is the broken remaining portion. In addition, when the breakage opening 54A of the buried pipe portion 54 has irregularities, it is preferable to hit it with a hammer or the like and make it flat in a substantially flat shape. Then, the inner diameter depth of the embedded pipe portion 54 is measured with a measure to confirm the insertable depth of the insertion pipe body 1.

Next, as shown in FIG. 4, the insertion tube 1 of the temporary electrification pole A is pushed up by two workers, and the other workers lock the tow rope 17 on the fixed joint plate 3. The insertion pipe body 1 is pulled up from the other side to stand up and inserted into the hollow portion 54B of the embedded pipe portion 54. Then, an appropriate number of wedges a, a ... Is driven into the gap between the insertion pipe body 1 and the embedded pipe portion 54 to firmly fix the insertion pipe body 1 to the embedded pipe portion 54 (see FIG. 5). Next, with the lower pipe portion 6 lying on the ground, the movable joint plate 8 is connected to the fixed joint plate 3 of the insertion pipe body 1 by the connecting pin 11, and the flange 9 of the lower pipe portion 6 and the upper side are connected. The upright tube body 5 is assembled by abutting the flange 13 of the tube portion 12 and tightening and connecting with the bolts / nuts 16, 16, .... At this time, the tow rope 17 is attached to the suspension rings 15 and 1 of the upper pipe body 12.
Insert through 5 and hang both ends.

Then, the standing pipe body 5 was formed by about three workers.
Is lifted and is temporarily locked to an appropriate support 19 such as a stepladder to be supported in an oblique state, and from this state, the worker pulls the tow rope 17 and raises the standing tube 5 until it stands upright. When the fixed joint plate 3 and the movable joint plate 8 abut against each other completely, the bolts and nuts (not shown) are fastened and fixed to complete the work for planting the temporary electrified pole A.

This embodiment comprises the above-mentioned steps, and there is no need to newly drill a foundation hole as in the prior art,
The work time of about 4 hours required for this can be eliminated. Further, since the insertion pipe body 1 forming the temporary electrification pillar A is configured separately from the standing pipe body 5, the work of inserting and standing the insertion pipe body 1 into the embedded pipe portion 54 can be easily performed. Furthermore, since the standing pipe body 5 is configured as a divided body of the lower pipe portion 6 and the upper pipe portion 12, it is not necessary to use a long body truck for transportation to the accident site, so that transportation cost can be saved and transportation time can be saved. It can be shortened. Since the temporary electrified pole A is divided into three parts, it can be planted only by the worker without using a crane vehicle. As a result, the time required for restoration can be shortened to about one-fourth as compared with the conventional method of building electrified columns, and the cost can be significantly reduced.

Although the steel tube is used for the temporary electrification pillar A in the present embodiment, a hollow tube made of fiber reinforced plastic (FRP) may be used.

FIG. 9 shows the second embodiment. In addition,
In the present embodiment, the same components as those of the first embodiment described above are designated by the same reference numerals, and the description thereof is omitted. In the figure, reference numeral 21 denotes an insertion pipe body, and the insertion pipe body 21 is composed of an insertion pipe portion 2 and a pipe support portion 22 provided at an upper end of the insertion pipe portion 2. here,
The pipe support portion 22 is fixed to the upper end of the insertion pipe portion 2 by welding, and is fixed by the ribs 22A, 22A, ...
2B, a movable plate 22D that is rotatably connected to the fixed plate 22B through a connecting pin 22C, and a hollow tube that is provided on the upper surface of the movable plate 22D so as to project and is reinforced by ribs 22E, 22E ,. And a tubular body support cylinder 22F
And a plurality of bolt holes (not shown) that are spaced apart in the circumferential direction. The tightening bolts 23, 23, ... Are screwed into the bolt holes.

Reference numeral 24 shows the standing tube body of this embodiment. Reference numeral 25 denotes a lower tube portion that constitutes the standing tube body 24. The lower tube portion 25 is different from the lower tube portion 6 of the first embodiment,
The pipe main body 26 and the flange 9 fixed to the upper end of the pipe main body 26 are provided, and the lower pipe portion 6 of the first embodiment is formed.
The movable joint plate 8 and the reinforcing ribs 10, 10, ... Are not provided.

In the present embodiment having the above-mentioned configuration, the insertion pipe body 21 has the embedded pipe portion 5 similar to that of the first embodiment.
Insert in 4 and fix. Next, the movable plate 22D is set in a substantially vertical state, the lower end side of the pipe main body 26 of the lower pipe portion 25 is inserted into the pipe body support cylinder 22F, and it is firmly fixed with the tightening bolts 23, 23, .... The subsequent working process of standing the standing pipe 24 is basically the same as that of the first embodiment.
However, according to the present embodiment, since the standing tube body 24 is connected to the movable plate 22D which is pin-connected to the fixed plate 22B fixed to the insertion tube body 21 in advance, the troublesome axial center alignment is not performed. The upright tube 24 can be connected to the insertion tube 21.

[0021]

Since the present invention is constructed as described above in detail, it has the following effects. (1) The time required for the restoration work for building temporary electrified poles can be shortened to about one-fourth that of the conventional method, so that the train operation can be restarted promptly. (2) Since the temporary electrification pillar is divided into at least the insertion tube and the standing tube, and the standing tube is connected by the connecting pin, it can be planted only by the worker without using heavy equipment. . (3) Since the work vehicle is not used, the work can be performed at the accident site without being affected by the situation, which is excellent in workability. (4) Since the temporary electrification pillar is configured as a divided body, it is possible to reduce transportation costs and operating costs of the work vehicle.

[Brief description of drawings]

1 to 8 relate to a first embodiment of the present invention, and FIG. 1 is an overall configuration diagram of a temporary electrification pole.

FIG. 2 is an explanatory diagram showing a broken state of an existing electrification pole.

FIG. 3 is an explanatory diagram of a buried pipe portion of an existing electrification pillar.

FIG. 4 is an explanatory view of an operation of inserting the insertion tube body into the embedded tube portion.

FIG. 5 is an explanatory diagram of a work of fixing the insertion pipe body to the embedded pipe portion.

FIG. 6 is an explanatory view of a state in which the upright tube is connected to the insertion tube.

FIG. 7 is an explanatory view of a state in which the standing tube is once tilted before being raised.

FIG. 8 is an explanatory diagram showing a state in which a standing pipe is planted.

FIG. 9 is an enlarged view of a main part of a temporary electrification pole according to a second embodiment.

[Explanation of symbols]

1,21 insertion tube 2 Insertion tube 3 fixed joint plate 5, 24 Standing tube 8 movable joint plates 11 connecting pin 22 Pipe support 22B fixed plate 22C connecting pin 22D movable plate 22F Tube support tube 51 Existing electrification pole 54 Buried pipe section A temporary electrification pillar

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yoshifumi Sato             15-1-1 North, Article 11 West, Chuo-ku, Sapporo-shi             Kaido Passenger Railway Co., Ltd. (72) Inventor Koichi Yamamoto             15-1-1 North, Article 11 West, Chuo-ku, Sapporo-shi             Kaido Passenger Railway Co., Ltd. F-term (reference) 5G367 AA02 AA06

Claims (4)

[Claims] 1. A method for constructing a temporary electrification pole in a buried pipe portion, which is a breakage remaining portion of an existing electrification pillar made of a reinforced concrete hollow pipe, wherein the temporary electrification pole is an insertion pipe body and the insertion pipe. The insertion tube is inserted into and fixed to the embedded tube portion, and is connected to the upper end of the insertion tube while being connected to the upper end of the body and rotatable. After that, the construction method of the temporary electrification pillar is constructed by standing up and connecting the insertion tube and the upright tube. 2. The temporary electrification column has an insertion tube body having a fixed joint portion at an upper end and a movable joint portion connected to the fixed joint portion through a connecting pin at a lower end, and the insertion tube body is And a movable joint portion in which the standing pipe body is laid down on the fixed joint portion of the insertion pipe body. Pin coupled,
The method for constructing a temporary electrified pole according to claim 1, wherein the standing tube is erected with the connecting pin as a fulcrum, and the columnar tube is finally connected to the insertion tube. 3. A tube support comprising a fixed plate, a movable plate pin-coupled to the fixed plate, and a tube support cylinder projecting from the movable plate at the upper end of the insertion tube portion constituting the insertion tube. 2. The method for constructing a temporary electrified pole according to claim 1, wherein the portion is fixed, and the standing pipe is inserted and fixed in the pipe support cylinder of the pipe support. 4. The method for constructing a temporary electrified pole according to claim 1, wherein the standing tube is formed into a plurality of divided bodies in the axial direction.