KR20200072706A - The structure to extend the length for penetration of prestressed concrete pole and the method thereof - Google Patents

Abstract

The present invention relates to a composite length extended structure for reinforcing a penetration depth of a concrete electric pole, which is attached to a lower end portion of the concrete electric pole to sufficiently secure the penetration depth of the electric pole, thereby increasing conductive safety of the electric pole. More specifically, the composite length extended structure includes: a lower structure formed in a column shape, increasing support force of the electric pole, and preventing subsidence; an upper structure which is formed in the column shape and is fixedly coupled to an upper portion of the lower structure and into which the electric pole is inserted so that the penetration depth of the electric pole is reinforced; and a wedge member fixing the electric pole inserted into the upper structure.

Description

The length extension composite structure and its manufacturing method for reinforcing depth in concrete poles and its manufacturing method{THE STRUCTURE TO EXTEND THE LENGTH FOR PENETRATION OF PRESTRESSED CONCRETE POLE AND THE METHOD THEREOF}

The present invention relates to a length-extended composite structure for reinforcing the depth of concrete poles by attaching them to the lower end of the concrete poles to sufficiently secure the depth of penetration of the poles to increase the horizontal bearing capacity and safety of conduction.

Due to the recent development of communication networks, the number of conch lines increases, and loads on Jeonju are constantly increasing due to natural disasters such as typhoons, heavy rains, and floods, and accidents in Jeonju are frequently occurring due to weakening of the ground due to loss of soil. , The demand for securing the horizontal support capacity and conduction safety of Jeonju is constantly increasing.

In general, the concrete pole is a cylindrical shape with a gentle gradient, and is manufactured in a length of 10m up to 16m in consideration of cargo transportation conditions.

These poles are dried by the excavation of a circular pit. At this time, the depth of entry into the pole varies depending on the load applied to the pole and the condition of the soil, and the depth of entry of a high-strength concrete pole with a length of 16m, which is generally used in Korea, is defined as 2.8m. It is done.

As described above, the depth of penetration of the 16m high strength concrete pole is prescribed to be 2.8m, but in the case of soft grounds or slopes, such as sandy soils and watery clay, an additional depth of up to 1m is added to secure the pole's bearing capacity and fall safety. Should be constructed.

However, when installing on the ground in consideration of the length of the concrete pole 10, which is defined as a maximum of 16m, when the concrete pole 10 is deeply moved from the existing 2.8m to 3.8m as shown in FIG. Due to the deviation length (Ha) of the electric pole 10, the power line also has a structural problem that the height of the ground has to be lowered, which increases the risk of safety accidents.

In order to solve this problem, if the length of the pole is longer than 17m, it is bound to be limited due to transportation problems. Therefore, when it is not possible to secure a sufficient depth of penetration when building a pole, as shown in FIG. 2, the pole is installed on the ground where the pole is inserted, or by constructing a branch line and a post, additionally securing the safety of the pole.

However, in the case of near Jeonju, it is difficult to obtain a great effect on the soft ground, and in the case of a method for securing support through branch lines and props, there are many problems during construction due to an increase in construction cost and difficulty in securing additional space in a narrow construction site. Have

In order to solve the above-described conventional problems, it is attached to the lower end of the electric pole to extend the length of the electric pole to secure the depth of penetration, and replaces the branch line and the struts to expand the root value to increase the horizontal bearing capacity and safety of the electric pole. The purpose of the present invention is to provide a composite structure having an extended length of concrete pole.

In order to solve the above-described technical problems, the length-extended composite structure for reinforcement of the depth of the concrete pole according to the present invention is formed in a column shape, but is formed in a columnar shape to increase support capacity and prevent settlement, and a column shape to form a lower column structure. It is characterized in that it comprises a fixed coupling to the upper portion, the upper pole is inserted therein to reinforce the depth of entry of the pole, and a wedge member for fixing the pole inserted into the upper structure.

In addition, it is preferable to maintain the columnar shape of the substructure by a reinforcing bar structure composed of a plurality of PC steel wires.

In addition, the lower structure further includes a circular root body protruding outwardly, and the substructure is preferably molded by curing the concrete structure.

In addition, the upper structure is formed extending a number of downwards at the bottom but is cured in an inserted state inside the sub-structure to increase the adhesion between the super-structure and the sub-structure, protrudingly formed on the inner surface of the super-structure, but outside the electric pole It is preferable to include a guide projection for guiding the electric pole inserted in contact with the center of the upper structure, and support means supported on the ground so that the electric pole can be stably inserted into the upper structure.

In addition, the support means is formed to have a predetermined length in the shape of a rod or bar (BAR), but is supported on the ground to support the superstructure, and at least one protrusion is formed on the outer surface of the superstructure, but the support rod is inserted therein. It is preferable that the superstructure includes an insertion piece provided to be supported on the ground.

In addition, the wedge member is composed of two powders and coupled to have a ring shape on the upper structure, but a pair of seating bodies having flanges seated on top of the upper structure, protruding downwardly formed on the lower surface of each seating body. It is preferable to include a wedge body that is fitted between the inner surface and the outer surface of the electric pole to fix the electric pole inserted into the superstructure in a wedge manner.

In addition, the outer diameter of the flange is formed to be equal to or larger than the outer diameter of the upper structure, and the flange is preferably formed with a first coupling hole for fixed coupling with a fastening piece having a first through hole formed by the fastening means.

In addition, the wedge body is preferably formed to protrude to have an arc shape in the longitudinal direction of the seating body or a plurality of protruding shapes to have an arc shape adjacent to each other in the longitudinal direction of the seating body.

In addition, the wedge body is opposite to the second through hole formed in the upper structure, it is preferable that the second coupling hole for fixing the upper structure and the seating body is fixed by fastening means.

According to the present invention, the lower structure formed to have a predetermined height using a concrete material differently from the prior art, fixedly coupled to the upper portion of the lower structure, but inserted into the upper structure and the upper structure in which the pole is inserted into a predetermined depth therein In addition to securing the depth of entry of the corresponding electric pole inserted into the excavation hole excavated through the wedge member configurations between the electric poles, the horizontal supporting force of the electric pole using a circular muscle body formed under the substructure according to the properties of the ground And it has the effect of providing a reduction in construction cost and convenience of construction by increasing the conduction stability and replacing the branch line and prop.

1 and 2 are views showing a conventional electric pole installation.
Figure 3 is a view showing a length extension composite structure for reinforcement of the concrete pole pole depth according to the present invention.
Figure 4 is an exploded view of Figure 3;
5 is a view showing a substructure of a length-extended composite structure for reinforcing depth of concrete poles according to the present invention.
Figure 6 is a view showing the upper structure of the length extension composite structure for reinforcement of the concrete pole pole in accordance with the present invention.
Figure 7 is a state diagram of the use of the support means for Figure 6;
Figure 8 is a perspective view of the wedge member of the length extension composite structure for the reinforcement of the concrete pole pole depth according to the present invention.
9 is a view showing a coupling relationship between the wedge member and the superstructure of FIG. 8.
10 is a plan view of FIG. 8;
11 is another embodiment of the wedge member of the length extension composite structure for reinforcement of the depth of the concrete pole according to the present invention.
12 is a plan view of FIG. 11;
13 is a coupling relationship with respect to FIG. 11;
Figure 14 is another embodiment of the wedge member of the length extension composite structure for reinforcement of the depth of the concrete pole in accordance with the present invention.
15 is a plan view of FIG. 14;
Fig. 16 is a coupling relationship to Fig. 14;
17 is a state diagram of a length-extended composite structure for reinforcing depth of concrete poles according to the present invention.
18 is a flow chart showing a method of manufacturing a length-extended composite structure for reinforcing depth of concrete poles according to the present invention.
19 to 22 are views showing the step-by-step molding of the substructure combined with the superstructure using the mold for FIG.
23 is another embodiment of a mold of a method for manufacturing a length-extended composite structure for reinforcing depth of concrete poles according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the length extension composite structure (hereinafter simply referred to as'composite structure') for the reinforcement of the depth of the concrete pole according to the present invention.

First, as shown in Figures 3 and 4, the composite structure according to the present invention largely includes the lower structure 100, the upper structure 200 and the wedge member 300.

In more detail, as shown in FIGS. 4 and 5, the substructure 100 increases the supporting power of the electric pole (E/P) when the electric pole (E/P) is inserted into the ground. This is a configuration to prevent settlement.

The lower structure 100 is molded into a column shape by curing of a concrete structure input to a mold 20 to be described later, and a skeleton is formed by a general reinforcing structure 110 to maintain the column shape therein. (See Figures 21 and 22).

The substructure 100 formed by curing the concrete structure is cured with the attachment protrusion 210 protruding downwardly inserted into the superstructure 200 to be fixedly coupled to the superstructure 200. .

On the lower outer surface of the lower structure 100, a circular root body 120 having different diameters is formed to protrude in the outer direction, and is inserted into the upper structure 200 to support the electric pole (E/P). It is possible to prevent settlement due to improvement and increase of the contact area.

And, referring to Figures 4, 6 and 7, the upper structure 200 is fixedly coupled to the upper portion of the above-described lower structure 100, but an electric pole (E/P) is inserted therein to insert the lower structure 100. In addition, it is a configuration to reinforce the depth of entry of the corresponding pole (E/P).

The upper structure 200 is formed of a steel pipe made of a metal material so that the lower part of the electric pole (E/P) can be inserted therein, and at least one attachment protrusion 210 is disposed below the upper structure 200. The protrusion is formed to facilitate the fixed coupling with the substructure 100.

Here, the attachment protrusion 210 is formed to protrude radially to have a length downward in the lower portion of the upper structure 200 made of a cylindrical shape, and the attachment protrusion 210 is inserted into the lower structure 100 being cured The upper structure 200 and the lower structure 100 are fixedly coupled to each other.

At this time, the lower portion of the attachment protrusion 210 is preferably bent at a predetermined angle to increase the bonding force between the upper structure 200 and the lower structure 100.

At least two guide protrusions 220 for guiding the inserted electric pole (E/P) to be inserted at the center of the superstructure 200 are projected in the inner direction of the inner surface of the superstructure 200 in the form of a steel pipe. Is formed.

On the other hand, the outer surface of the upper structure 200 may further include a support means 230 for supporting the inside of the pole (E / P) to be stably inserted when inserted, the support means 230 is a support rod 231 and the insertion piece 233.

The support rod 231 is made of a rod or a bar (BAR) shape having a predetermined length, the length of which is formed larger than the diameter of the digging hole, before inserting the composite structure according to the present invention into the digging hole from the ground The upper structure 200 is to be supported by the corresponding hole.

The insertion piece 233 has a plurality of components symmetrically formed on the outer surface of the upper structure 200, and a support rod 231 supported outside the earthwork hole is inserted to stably support the upper structure 200 on the ground. do.

At this time, the insertion piece 233 preferably has a shape bent at a right angle so that the support rod 231 is stably inserted so that the upper structure 200 can be mounted.

And, referring to Figures 8 to 10, the wedge member 300 is a structure for fixing the electric pole (E/P) inserted inside the upper structure 200, the seating body 310 and the wedge body 320- 1,320-2).

The seating body 310 is composed of a pair of bodies having a ring shape as a whole, and a flange 311 for seating on the top of the upper structure 200 is formed on the outer surface.

At this time, the flange 311 is formed to have the same diameter as the outer diameter of the upper structure 200, so that the seating body 310 is seated on the top of the upper structure 200 or the outer diameter of the flange 311. It is preferable to form a larger than the outer diameter of the superstructure 200 so that the flange 311 can perform the function of the root body 120 (see FIGS. 11 to 13 ).

In addition, a first coupling hole 313 for fixed coupling with the upper structure 200 is formed on the flange 311 by a fastening means P such as a bolt or a screw, and the upper structure 200 is also the first The first through hole 241 is perforated at a position facing the coupling hole 313 so that the seating body 310 and the upper structure 200 can be fixed to each other by the fastening means P (FIG. 10 and 12)

Wedge body (320-1,320-2) is formed protruding downward to the lower portion of the seating body 310 made of a pair between the inner surface of the upper structure 200 and the outer pole (E/P) inserted into the upper structure 200 In a wedge-type fitting, the fixing force between the upper structure 200 and the electric pole (E/P) is maximized (see FIG. 7 ).

At this time, the wedge body (320-2), as shown, each seating body 310 is formed to protrude to have an arc shape in one unit along the longitudinal direction, or each of the seating bodies 310 to each other It is preferable to have the shape of the wedge body 320-1 so that it is formed to protrude adjacently to fit between the upper structure 200 and the pole (E/P) (see FIG. 14).

In addition, the wedge body 320-2 may be formed with a second coupling hole 321 to have the same effect as the above-described first coupling hole 313, if necessary, the second coupling hole 321 The upper structure 200 in a position opposite to the second through hole 250 through which the fastening means P is inserted is also formed (see FIGS. 15 and 16 ).

Hereinafter, a method for manufacturing a length-extended composite structure for reinforcing depth of concrete poles according to the present invention will be described in detail with reference to the accompanying drawings based on the above-described configuration of the composite structure. .

Prior to the description, as shown in FIG. 18, the manufacturing method according to the present invention is largely 1) forming a wedge member (S100), 2) forming a top structure (S200), and 3) forming a reinforcement structure. Step (S300), 4) Inserting the superstructure and the rebar structure into the lower mold 23 (S400), 5) Injecting concrete into the lower mold (S500), 6) Rotating the mold to make the upper structure It includes a step (S600) of forming a fixed installed substructure (S600) and a step (S700) of demolding the substructure, and the manufacturing method will be described in more detail below.

First, the manufacturing method according to the present invention comprises a wedge member comprising a seating body 310 and a wedge body 320-1,320-2 made of any one of the above-described embodiments using a mold means (not shown). (300) is molded from a metal material, and the molding standard of the corresponding wedge body (320-1,320-2) is selected and molded according to the properties of the ground by the authority of the operator or manager who wants to install the electric pole (10) on the ground. Make it possible.

Next, the upper structure 200 including the guide protrusion 220 and the attachment protrusion 210 is molded into a steel pipe shape using other mold means.

The height of the superstructure 200 can be molded by varying the height according to the nature of the pole (E/P) or the ground (see FIG. 13).

In addition, the attachment protrusion 210 is formed to protrude downward on the lower surface of the upper structure 200 so as to have a length that is in contrast to the height of the upper structure 200 so as to increase the binding force with the lower structure 100.

Next, as shown in FIG. 19, the reinforcing structure 110 forming the skeleton of the substructure 100 is formed, but the reinforcing structure 110 is radially adjacent to each other and maintaining the spacing between them. It consists of a combination of spiral pylons wound in the spiral direction.

Then, as shown in FIG. 20, the upper mold 200 and the reinforcing bar structure 110 previously molded in the previous step are inserted into the lower mold 23 where the upper mold 21 is removed.

At this time, each of the attachment protrusions 210 protruding from the lower portion of the upper structure 200 is provided inside the lower mold 23 so that a portion thereof can be inserted into the reinforcing bar structure 110, thereby forming the lower structure 100. It is preferable that the upper protrusion 200 is easily fixedly coupled to each other by the attachment protrusion 210.

In addition, the reinforcement structure 110 and the upper structure 200 is inserted into the molding space portion 27 is formed to the lower structure 100 is combined with the upper structure 200, the upper mold 21, the lower mold including the interior 23 ) Is formed inside, the molding space portion 27 is formed to be divided into each other independently by the partition wall 25 so that a plurality of substructures 100 can be molded through one mold 20.

Then, as shown in FIG. 21, a concrete mixture for molding the substructure 100 is introduced into the molding space portion 27 formed at least in the lower mold 23.

Then, by rotating the mold 20 that combines the upper mold 21 with the lower mold 23 so that the airtightness of the molding space portion 27 can be maintained, the centrifugal force can be applied to the mold 20 to work. Consists of a substructure 100 with a sieve 120 provided thereon to cure the concrete so that the substructure 100 that is fixedly coupled to the superstructure 200 can be molded.

Finally, as shown in FIG. 22, the upper mold 21 is removed, and the lower structure 100 molded by curing concrete is demolded from the forming space part 27, and the manufacturing method according to the present invention is All will be completed.

On the other hand, as shown in FIG. 23, the mold 20 forms a plurality of molding space portions 27 to form the upper structure 200 and the lower structure 100 according to the present invention through one mold 20. It is also possible to form multiple.

The composite structure according to the present invention made of such a configuration is fixed to the lower structure 100 and the lower structure 100 formed to have a predetermined height using a concrete material differently from the conventional one, as shown in FIG. Combined but in the inside of the excavation hole excavated through the configuration of the wedge member 300 between the upper structure 200 and the electric pole 10 inserted into the upper structure 200, the pole 10 is inserted into a predetermined depth therein In addition to securing the depth of entry of the corresponding pole 10 to be inserted, the horizontal support and conduction of the pole 10 by using a circular muscle 120 formed under the substructure 100 according to the properties of the ground It has the effect of reducing the construction cost and providing the convenience of construction by increasing the stability and replacing the branch line and prop.

As described above, in the present invention, specific matters such as specific components and the like have been described by limited embodiments and drawings, but these are provided only to help a more comprehensive understanding of the present invention, and the present invention is not limited to the above embodiments , Anyone having ordinary knowledge in the field to which the present invention pertains can make various modifications and variations from these descriptions.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and should not be determined, and all claims that are equivalent to or equivalent to the scope of the claims as well as the claims described below will be included in the scope of the spirit of the present invention. .

100: substructure 110: reinforced structure
120: root body 200: superstructure
210: attachment protrusion 220: guide protrusion
230: support means 231: support rod
233: Insertion piece 240: Fastening piece
241: first through hole 250: second through hole
300: wedge member 310: seating body
311: flange 313: first coupling hole
320-1,320-2: Wedge body 321: Second coupling hole
E/P: Jeonju P: Fastening means

Claims (11)

It is made of a column shape, but the lower structure (100) to increase the support capacity of the pole (E/P) and to prevent settlement;
It is made of a column shape but fixedly coupled to the upper portion of the lower structure 100, the upper pole (E/P) is inserted into the upper structure (200) to reinforce the depth of entry of the pole (E/P); And
Wedge member (300) for fixing the electric pole (E / P) inserted into the upper structure 200; characterized in that it comprises a concrete length extension composite structure for reinforcement depth of concrete pole.
According to claim 1,
The substructure 100 is a length-strength composite structure for reinforcement of the depth of the concrete pole, characterized in that to maintain the column shape by the reinforcement structure (110).
According to claim 1,
At the bottom of the substructure 100
Further comprising a circular muscle body 120 protruding in the outward direction, the substructure 100 is a length extension composite structure for reinforcement of concrete pole pole depth, characterized in that formed by curing the concrete structure.
According to claim 1,
The superstructure 200 is
A plurality of downwardly extending extensions are formed while being inserted into the lower structure 100 to be attached to the upper structure 200 and the attachment protrusions 210 to improve the adhesion of the lower structure 100, the upper structure ( 200) Guide protrusions 220 that protrude on the inner surface and guide the electric pole (E/P) inserted into contact with the outer surface of the electric pole (E/P) to be located in the center of the upper structure 200, the upper portion A length extending composite structure for reinforcement of a concrete pole pole depth, characterized in that it comprises support means (230) supported on the ground so that the pole (E/P) can be stably inserted into the structure (200).
According to claim 4,
The support means 230
It is formed to have a predetermined length in the form of a rod or bar (BAR), but is supported on the ground to support the upper structure 200. At least one protrusion protrudes on the outer surface of the upper structure 200. Support rod 231 is inserted length of the composite structure for concrete reinforcement depth reinforcement characterized in that it comprises an insert piece 233 is provided so that the upper structure 200 can be supported on the ground.
According to claim 1,
The wedge member 300 is
It consists of two powders and is coupled so as to have a ring shape on the upper structure 200, but a pair of seating bodies 310 having a flange 311 seating on the upper part of the upper structure 200, each of the seating bodies 310 It is formed to protrude downward on the lower surface, but is fitted between the inner surface of the upper structure 200 and the outer surface of the electric pole (E/P) and fixed the electric pole (E/P) inserted into the upper structure 200 in a wedge manner. A length-extended composite structure for reinforcing the depth of the concrete pole, characterized in that it comprises a wedge body (320-1,320-2).
The method of claim 6,
The outer diameter of the flange 311 is formed to be equal to or larger than the outer diameter of the upper structure 200, and the flange 311 has a first through hole 241 of the upper structure 200 by fastening means P. A length extension composite structure for reinforcement of the depth of the concrete pole, characterized in that the first coupling hole 313 for fixed coupling with the formed fastening piece 240 is formed.
The method of claim 6,
The wedge bodies 320-1 and 320-2 are protrudingly formed to have an arc shape in the longitudinal direction of the seating body 310 or arc shapes adjacent to each other in the longitudinal direction of the seating body 310. Characterized in that a plurality of protrusions are formed to have a length extension composite structure for reinforcement of the depth of the concrete pole.
The method of claim 6,
The wedge body 320-2 faces the second through hole 250 formed in the superstructure 200, but the superstructure 200 and the seating body 310 are fixedly coupled by fastening means P. A second extended hole 321 is formed to extend the length of the composite structure for reinforcement depth of concrete poles characterized in that formed.
1) forming a wedge member 300;
2) forming a pillar-shaped upper structure 200 into which an electric pole (E/P) can be inserted through the opened upper portion;
3) forming a reinforcement structure 110 made of a combination of reinforcing bars;
4) providing the reinforcement structure 110 and the upper structure 200 together inside the lower mold 23 where the upper mold 21 is removed;
5) adding concrete into the lower mold 23;
6) After the upper mold 21 is combined with the lower mold 23 so that airtightness can be maintained inside the lower mold 23, the concrete injected by the centrifugal force is cured by rotating, thereby reinforcing the reinforcement structure 110. Forming a structure in which the lower structure 100 having a frame is fixedly coupled to the upper structure 200; And
7) removing the upper mold 21 from the lower mold 23 to demold the lower structure 100 to which the upper structure 200 is coupled; Manufacturing method for length extension composite structure.
The method of claim 10,
In the step 4), the upper structure 200 is provided inside the lower mold 23 so that a plurality of attachment protrusions 220 protruding downward from the lower portion thereof may be introduced into the reinforcing bar structure 110. In the step 6), when the concrete is cured, the length for reinforcing the depth of the concrete pole is characterized in that the upper structure 200 and the lower structure 100 are fixedly coupled to each other through the attachment protrusion 220. Method for manufacturing extended composite structure.

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