KR102118064B1 - Uninterruptible construction method of high and low pressure uninterruptible junction box using recycled composite resin - Google Patents

Abstract

According to an aspect of the present invention, provided is an uninterruptible construction method of a high and low voltage uninterruptible connection box using a recycled composite resin. The uninterruptible construction method of a high and low voltage uninterruptible connection box using a recycled composite resin comprises: an advance preparation step; a step of removing an existing connection box; a step of installing a main body unit of a high and low voltage uninterruptible connection box; a step of installing a cover unit of the high and low voltage uninterruptible connection box on an upper end of the main body unit; and a finishing step.

Description

Uninterruptible construction method of high and low pressure uninterruptible junction box using recycled composite resin}

The present invention relates to an uninterruptible construction method of a high and low voltage uninterruptible junction box using a recycled composite resin, and more specifically, to a high and low voltage uninterruptible junction box using a recycled composite resin capable of rapid construction without cutting an electric cable. It is about an uninterruptible construction method.

In the construction of various civil works, building constructions and roads, sewer pipe construction is required to treat rainwater, sewage, and wastewater. The manhole block is installed in the middle of the sewer pipe for the purpose of inspection, cleaning, ventilation, ventilation, splicing, branching, etc. in the pipe.

Among them, manholes for power lines are installed at the point where the road diverges, at the point where the pipeline diverges, and when the pipeline must be bent beyond the allowable curvature, steep slope hill roads, before and after long bridges, and at cable connection or branch locations.

When installing a manhole for power lines underground, the site pouring method is mainly used to construct concrete manholes at the site.

The on-site casting method is a method of installing a formwork at an installation site, assembling the reinforcing bar, and then mixing the predetermined materials to pour concrete produced in the formwork and removing the formwork after a predetermined curing period.

However, the above-mentioned pour-in-place construction method has a drawback in that it is difficult to move all equipment to the site, and the construction period is long and traffic congestion occurs on the site.

In addition, there is a problem in that inconvenience occurs in a nearby area because the power line must be under a truce state for at least one day during renovation/expansion to secure excessive line, facility expansion, and structural safety.

The applicant has registered a patent for'high and low voltage junction box using recycled composite resin and its uninterruptible construction method', which is a technique for solving the above problems, on May 23, 2017, and supplemented and improved the above technology.

Republic of Korea Registered Patent No. 10-1741022 (2017.05.29)

The present invention has been devised to solve the above problems, and an object of the present invention is to provide an uninterruptible construction method of a high and low voltage uninterruptible junction box using a recycled composite resin capable of construction in an uninterruptible state.

In addition, it is to provide an uninterruptible construction method of a high and low voltage uninterruptible junction box using a recycled composite resin capable of reducing construction time.

In addition, it is to provide an uninterruptible construction method of a high and low voltage uninterruptible junction box using a recycled composite resin capable of reducing construction costs.

An uninterruptible construction method of a high and low voltage uninterruptible junction box using a recycled composite resin according to an embodiment of the present invention for achieving the above object is a preliminary preparation step, a step of removing an existing junction box, and a high and low voltage uninterruptible connection. A step of installing a main body of the box, a step of installing a cover part of the high- and low-voltage uninterruptible junction box on the upper end of the main body, and a finishing step may be provided.

The preliminary step may include a step of having a safety meeting, a step of installing a safety facility, a step of checking the existing junction box, and a step of installing a cable protection material.

The step of removing the existing junction box includes cutting an asphalt pavement surface, removing a sidewalk block and marble, removing a lid and a frame of the existing junction box, destroying, and connecting the existing junction box. A step of removing the housing and a step of loading the waste may be provided.

The step of installing the main body portion of the high and low voltage uninterruptible junction box includes measuring a ground resistance value, constructing a ground, designating and compacting rubble, and drilling a pipeline through the body portion, and flame retardant inside the body portion. Applying a paint; installing a bottom plate on the main body; installing a lower body of the main body; installing an upper body of the main body; and installing a formwork on the inside and outside of the conduit. It may include a step of pouring and curing super-hard concrete, a step of removing the formwork installed on the outside of the conduit, and a step of treating the soil after backfilling and compaction.

The step of installing the cover portion of the high and low voltage uninterruptible junction box on the top of the main body portion includes a step of installing a concrete ring, a step of temporarily mounting an insulating lid, a step of installing a frame fixing bolt, and a nut for height adjustment. The step of adjusting the height, the step of installing the rubber tube formwork, the step of pouring superhard concrete into the lower part of the frame, the step of removing the formwork of the rubber tube, and the formwork and cable protection material installed inside the conduit Dismantling may be provided.

The finishing step may include a step of cleaning and arranging the inside of the main body, a step of installing a new lid, a step of restoring and cleaning the packaging, and a step of opening the traffic.

The high and low voltage uninterruptible junction box using the recycled composite resin is provided with the main body part and the cover part, and the cover part is located at the lower part of the new lid, the mold coupled with the new lid, and the mold, and through field pouring. The height-adjustable superhard concrete ring, which is provided below the height-adjustable superhard concrete ring, supports the height-adjustable superhard concrete ring and is inserted in the direction of the height-adjustable superhard concrete ring from the support concrete ring. A frame fixing bolt and a height adjusting nut that is fastened to the fixing bolt and adjusts the height of the frame may be provided.

The main body portion is provided on the lower body of the main body portion and the lower body of the main body portion where the cable is located inside and the lower body of the body coupled to the lower portion of the upper body, coupled to the lower portion of the support concrete ring, the cable is located therein. A bottom plate supporting the main body portion, one end is provided inside the main body portion, and the other end may be provided with a ground rod inserted into the ground through a drainage hole formed in the bottom plate.

The bottom plate is provided with a rim member in which an engaging groove is formed on an outer circumferential surface, and a fulcrum member for supporting the lower body in combination with the rim member, and the fulcrum member is the drain hole, a seating groove for the lower body, and the rim member An extended protrusion facing the upper surface of the and an extended protrusion extending downward from the extended protrusion may be provided with a coupling protrusion engaging with the coupling groove.

According to the uninterruptible construction method of the high and low voltage uninterruptible junction box using the recycled composite resin according to the present invention, the construction can be performed without cutting the electric cable by combining the high and low voltage junction box with the live cable.

In addition, it is possible to reduce the construction time by being constructed in a field assembly method using a precast method.

In addition, the construction cost can be reduced by using a recycled composite resin.

1 is a flow chart showing an uninterruptible construction method of a high and low voltage uninterruptible junction box using a recycled composite resin according to an embodiment of the present invention.
2 is a perspective view showing a high and low voltage uninterruptible junction box using the recycled composite resin shown in FIG. 1.
FIG. 3 is a cross-sectional view of a high and low voltage uninterruptible junction box using the recycled composite resin shown in FIG. 2.
4 is a cross-sectional view showing a high and low voltage uninterruptible junction box constructed through an uninterruptible construction method of a high and low voltage uninterruptible junction box using the recycled composite resin shown in FIG. 1.

Hereinafter, an uninterruptible construction method of a high and low voltage uninterruptible junction box using a recycled composite resin according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a flow chart showing an uninterruptible construction method of a high and low voltage uninterruptible junction box using a recycled composite resin according to an embodiment of the present invention, and FIG. 2 is a high and low pressure uninterruptible junction box using the recycled composite resin shown in FIG. 1. 3 is a cross-sectional view of a high and low voltage uninterruptible junction box using the recycled composite resin shown in FIG. 2, and FIG. 4 is a method through an uninterruptible construction method of a high and low voltage uninterruptible junction box using the recycled composite resin shown in FIG. It is a cross-sectional view showing a high and low voltage uninterruptible junction box constructed.

1 to 4, the uninterruptible construction method of the high and low voltage uninterruptible junction box 10 using the recycled composite resin according to an embodiment of the present invention includes a preliminary preparation step (S100) and removing an existing junction box. (S200), the step of installing the main body portion 100 of the high and low voltage uninterruptible junction box (S300), the cover portion 200 of the high and low voltage uninterruptible junction box 10 on the top of the main body portion 100 It may include a step of installing (S400) and a finishing step (S500).

Pre-preparation step (S100), removing the existing junction box (S200), installing the main body 100 of the high and low voltage uninterruptible junction box 10 using recycled composite resin (S300), main body 100 Step (S400) and the finishing step (S500) of installing the cover part 200 of the high and low voltage uninterruptible junction box 10 using recycled composite resin on the top of the) are preliminary preparation steps (S100). Previously, pre-work location can be identified by location, NDIS (new distribution information system) drawings secured, buried items secured, site survey (detected buried), local governments' excavation permits, road construction reports and waste reports can be made. As a result, inspection and completion can be done.

On the other hand, although not shown in the drawings, the existing connection box is composed of a connection box, a lid and a frame, and may be provided with a cable 20 located therein.

Looking in detail about the pre-preparation step (S100), the pre-preparation step (S100) includes a safety meeting (S101), a step of installing safety facilities (S102), a step of checking the existing junction box (S103) and a cable ( 20) A step (S104) of installing a protective material may be provided. A safety facility installation plan may be established through a step (S101) of the safety meeting, and safe construction is performed through a step (S103) of checking the existing junction box and a step (S104) of installing a protective material for the cable 20. It can be done.

The step of removing the existing junction box (S200) includes cutting the asphalt pavement surface (S201), removing the sidewalk block and marble (S202), removing the lid and frame of the existing junction box (S203), and digging Step (S204), the step of removing the connection box of the existing junction box (S205) and loading the waste (S206) may be provided. The buried space 30 is formed through the trenching step (S204), and the multi-layer reinforcement can be performed after the high and low voltage uninterruptible junction box 10 using the recycled composite resin to be described later is seated. have.

The step of installing the main body 100 of the high and low voltage uninterruptible junction box 10 using the recycled composite resin (S300) is a step of constructing a ground by measuring a ground resistance value (S301), designating and compacting rubble (S302) ), perforating a pipeline to the body portion 100 (S303), applying a flame retardant paint to the interior of the body portion 100 (S304), and installing the bottom plate 130 to the body portion 100 (S305), the step of installing the lower body 120 of the body portion 100 (S306), the step of installing the upper body 110 of the body portion 100 (S307), the step of installing the formwork inside and outside the pipeline (S308) ), pouring and curing super-hard concrete (S309), removing demolition (S310) installed on the outside of the conduit, and reclaiming and compacting after the remnant treatment (S311). The bottom layer 31 is formed in the landfill space 30 through the rubble designation and compaction step S302, and the first reinforcement layer 32 may be formed through the step S309 of pouring and curing super-hard concrete. . Then, after the backfilling and compaction work, the second reinforcement layer 33, the third reinforcement layer 34 and the pavement layer 35 through aggregate placement or ready-mixed concrete placement may be formed through the residual soil treatment step (S311). In addition, in the step (S305) of installing the bottom plate 130 in the main body 100, it is preferable to check the state of the drain hole 1321 formed in the bottom plate 130 to facilitate drainage.

The step of installing the cover portion 200 of the high and low voltage uninterruptible connection box 10 using recycled composite resin on the top of the main body 100 (S400) is a step of installing the support concrete ring 240 (S401), Temporarily mounting the insulating lid (S402), installing the frame fixing bolt 250 (S403), adjusting the height with the height adjusting nut 260 (S404), and installing the rubber tube formwork (S405), pouring a super-hard concrete under the frame 220 (S406), removing the rubber tube formwork (S407) and removing the formwork and cable 20 protective material installed inside the pipeline ( S408). In the step of adjusting the height with the nut 260 for height adjustment (S404), it is preferable that the new lid 210, which will be described later, is adjusted to be equal to the final finishing height of the road. And in the step (S405) of installing the rubber tube formwork, the rubber tube formwork can be prevented from being leaked into the inside through the step (S406) of pouring the superhard concrete into the lower part of the mold (220).

The finishing step (S500) is a step of cleaning and arranging the interior of the main body 100 (S501), a step of installing a new lid 210 (S502), repairing the packaging, cleaning and cleaning the surroundings (S503), and transportation It may be provided with the step of opening (S504). Excavation on the same day and opening of traffic on the same day may be performed through the above-described construction steps.

Meanwhile, the high and low voltage uninterruptible connection box 10 using the recycled composite resin according to an embodiment of the present invention may include a body part 100 and a cover part 200.

The cover part 200 is provided with a new lid 210, a frame 220, a height-adjustable super-hard concrete ring 230, a base concrete ring 240, a frame fixing bolt 250, and a height adjustment nut 260. can do.

The new lid 210 and the mold 220 may be manufactured to implement a static load strength of 45ton using a composite material of FRP (fiber reinforced plastics). Due to the characteristics of the material, it has excellent electrical insulation, flame retardancy, corrosion resistance, and chemical resistance, and its thermal conductivity is very low. In addition, since the weight is about 50% lighter than when it is made of cast iron, it can be easily transported and workability can be improved.

Height-adjustable superhard concrete ring 230 may be provided on the lower portion of the frame (220). Here, the height-adjustable superhard concrete ring 230 may be manufactured at a factory and not assembled in the field, but may be provided through pouring.

Accordingly, it is possible to flexibly adjust the height of the frame 220 in the field according to the construction conditions or circumstances, thereby exerting an effect of improving the constructability.

The support concrete ring 240 is provided at the bottom of the height-adjustable super-hard concrete ring 230 and serves to support the frame 220 to which the new lid 210 including the height-adjustable super-hard concrete ring 230 is coupled. Adjusting the super-hard diameter concrete ring 230 and the support of the frame 220 can be improved.

In addition, the support concrete ring 240 may include an insertion portion 241 at the bottom. The insertion portion 241 is provided at the lower portion of the support concrete ring 240 so that the body portion 100 to be described later is inserted so that the support concrete ring 240 can be coupled to the body portion 100. Accordingly, the bonding force between the lid part 200 and the main body part 100 is improved, thereby increasing the structural safety and minimizing on-the-spot work, thereby improving the workability.

The frame fixing bolt 250 is inserted in the direction of the height-adjustable superhard concrete ring 230 from the support concrete ring 240, and one end may be exposed through the frame 220. The height adjusting nut 260 is fastened to the bolt 250 for fixing the frame to adjust and fix the thickness of the height-adjustable superhard concrete ring 230 to be placed between the frame 220 and the base concrete ring 240. It is possible to prevent the thickness of the height-adjusted superhard concrete ring 230, which has been adjusted, from being changed due to external impact, and prevents flow during pouring, thereby improving workability.

Meanwhile, the body portion 100 may include an upper body 110, a lower body 120, a bottom plate 130, and a ground rod 140.

The upper body 110 is made of recycled composite resin, is formed in a circular pipe shape, and can be combined with the lower portion of the support concrete ring 240. And the upper body 110 and the lower body 120 are polyethylene (PE, polyethylene), polypropylene (PP, polyprolene), polystyrene (PS, polystyrene) or polyamide (PA, polyamide) material of various waste packaging materials, waste vinyls, waste Recyclable composite resins made by mixing processing of plastics, waste wire coverings, etc. can be made of materials. In addition, a part of the upper body 110 and the lower body 120 can be easily cut off due to the material characteristics, so that the cable 20 can be inserted into the upper body 110 and the lower body 120. Accordingly, it is possible to install or replace the high and low voltage uninterruptible junction box 10 using the recycled composite resin in a live state without cutting the cable 20. In addition, the weight is more than about 80% lighter than that made of concrete, so it is easy to carry, improves workability, and can reduce the construction cost.

The lower body 120, like the upper body 110, is made of a recycled composite resin, is formed in a circular pipe shape, and allows the cable 20 to be positioned therein. Here, the upper body 110 and the lower body 120 may be provided with body members 110a, 120a, protruding members 110b, 120b, and fitting grooves 110c, 120c, respectively. The body members 110a and 120a determine the overall shape of the upper body 110 or the lower body 120 and may be provided in a circular pipe shape. The protruding members 110b and 120b may be formed under the main body members 110a and 120a to protrude in the outer circumferential direction of the main body members 110a and 120a. And the lower portion of the projection member (110b, 120b) is provided in a protruding form than the lower portion of the body member (110a, 120a), the difference between the lower portion of the lower portion of the projection member (110b, 120b) and the body member (110a, 120a) It may occur, and the fitting grooves 110c and 120c may be formed due to the step difference.

Here, the upper portion of the lower body 120 may be inserted into the fitting grooves 110c and 120c formed in the upper body 110 to be combined with the upper body 110. Accordingly, the bonding force between the upper body 110 and the lower body 120 is improved, so that the structural safety can be further enhanced.

Meanwhile, the bottom plate 130 may be provided below the lower body 120 to serve to support the lower body 120. In addition, the bottom plate 130 may have a larger area than the bottom area of the lower body 120 to improve the support of the high and low voltage uninterruptible junction box 10 using recycled composite resin.

Looking at the bottom plate 130 in detail, the bottom plate 130 may include a rim member 131 and a support member 132. The rim member 131 has a circular ring shape, and may have a coupling groove 1311 on its outer circumferential surface. The supporting member 132 may be combined with the edge member 131 to substantially support the lower body 120. And the support member 132 is a drain hole 1321, a seating groove 1322 on which the protruding member 120b of the lower body 120 is seated, an extended protrusion 1323 and an extended protrusion facing the upper surface of the rim member 131 It may be provided with a coupling protrusion 1324 extending in the downward direction from (1323) to engage the coupling groove (1311). When installing the bottom plate 130, first install the rim member 131, engage the engaging projection 1324 in the engaging groove 1311 of the rim member 131 and extend the projection on the upper surface of the rim member 131 ( 1323) the bottom plate 130 can be completed by combining the support member 132 with the edge member 131 so that it is placed. In this way, since the installation position of the bottom plate 130 can be set only by the edge member 131, it is easy to adjust the installation position of the bottom plate 130, and the edge member 131 and the support member 132 are combined with the projection and groove combination method. ) May be combined to facilitate construction.

On the other hand, the ground rod 140 is one end is provided inside the body portion 100, the other end is exposed to the outside of the body portion 100 through the drain hole 1321 formed in the bottom plate 130 to be inserted into the ground Can be. As described above, by installing the ground rod 140, it is possible to exert an effect of preventing a safety accident due to electric shock during construction.

Meanwhile, the insertion hole 300 is formed in the upper body 110 and the lower body 120 so that the cable 20 can be inserted therein, and can be formed in the field through a tool or the like. In addition, the number or position of the insertion holes 300 may be freely set according to the position or number of cables 20. In addition, the cut piece (not shown) to form the insertion hole 300 fills the remaining space after the cable 20 is inserted into the insertion hole 300, and the inside of the lower body 120 through the insertion hole 300. It is possible to minimize the inflow of foreign substances such as soil and sand and prevent the flow of the cable 20.

In the above, an uninterruptible construction method of a high- and low-voltage uninterruptible junction box using a recycled composite resin according to an embodiment of the present invention has been described, but the spirit of the present invention is not limited to the embodiments presented herein. And, those skilled in the art to understand the spirit of the present invention can easily propose other embodiments by adding, changing, deleting, adding, or the like components within the scope of the same spirit, but this also falls within the spirit of the present invention. something to do.

10: High and low voltage uninterruptible junction box using recycled composite resin
20: Cable 30: Landfill
31: bottom layer 32: first reinforcement layer
33: 2nd reinforcement layer 34: 3rd reinforcement layer
35: packaging layer 100: main body
110: upper body 110a: body member
110b: projection member 110c: fitting groove
120: lower body 120a: body member
120b: projection member 120c: fitting groove
130: bottom plate 131: border member
1311: engaging groove 132: support member
1321: drainage hole 1322: seating groove
1323: extended projection 1324: combined projection
140: ground rod 200: cover
210: new lid 220: frame
230: height-adjustable superhard concrete ring
240: support concrete ring 241: insert
250: Frame fixing bolt 260: Height adjustment nut
300: insertion hole

Claims (9)

Pre-preparation phase,
Removing the existing junction box,
The step of installing the main body of the high and low voltage uninterruptible junction box,
Installing a cover portion of the high- and low-voltage uninterruptible junction box on an upper end of the main body portion;
A finishing step,
The step of installing the main body portion of the high and low voltage uninterruptible junction box includes measuring ground resistance and constructing a ground, designating and compacting rubble, and drilling a pipeline through the main body, and flame retardant inside the main body. Applying a paint; installing a bottom plate on the main body; installing a lower body of the main body; installing an upper body of the main body; and installing a formwork on the inside and outside of the conduit. , Forming a first reinforcement layer in a form surrounding the outer surface of the main body by pouring and curing super-hard concrete, and removing the formwork installed outside the conduit, and treating the soil after backfilling and compaction Equipped,
The step of installing the cover portion of the high and low voltage uninterruptible junction box on the top of the main body portion includes installing a support concrete ring, temporarily mounting an insulating lid, installing a frame fixing bolt, and a nut for height adjustment. Adjusting the height of the frame coupled with the insulating lid, the step of installing a rubber tube formwork, the step of pouring super-hard concrete in the lower part of the frame, and removing the rubber tube formwork, the conduit And removing the formwork and cable protection material installed inside of the,
The high and low voltage uninterruptible junction box using the recycled composite resin is provided with the main body part and the cover part, the cover part is located in the lower part of the frame, the frame to be combined with the new lid, and the new lid, and is provided through field pouring The height-adjustable superhard concrete ring is provided on the lower portion of the height-adjustable superhard concrete ring and supports the height-adjustable superhard concrete ring. It is fastened to the fixing bolt and the fixing bolt of the frame and has a height adjusting nut for adjusting the height of the frame,
The main body part is provided on the lower body of the main body part where the cable is located inside, and the lower body of the main body part where the cable is located inside and the lower body of the lower body by being coupled with the lower part of the support concrete ring. It has a bottom plate for supporting the main body portion, one end is provided inside the main body portion, the other end is provided with a ground rod that is inserted into the ground through the drain hole formed in the bottom plate,
The bottom plate is provided with a rim member in which an engaging groove is formed on an outer circumferential surface, and a fulcrum member for supporting the lower body in combination with the rim member, and the fulcrum member is the drain hole, a seating groove for the lower body, and the rim member An uninterruptible construction method of a high and low voltage uninterruptible junction box using a recycled composite resin, characterized in that it has an extended protrusion facing the upper surface of the and an extended protrusion extending downward from the extended protrusion to engage with the coupling groove.
According to claim 1,
The pre-preparation step includes a safety meeting,
The step of installing safety facilities,
Checking the existing connection box,
Uninterruptible construction method of a high and low voltage uninterruptible junction box using a recycled composite resin, comprising the step of installing a cable protection material.
According to claim 2,
The step of removing the existing junction box is a step of cutting the asphalt pavement surface,
Demolition of the sidewalk block and marble,
Removing the lid and the frame of the existing junction box,
Digging stage,
Removing the connection box of the existing connection box,
Uninterruptible construction method of a high- and low-pressure uninterruptible junction box using a recycling composite resin, characterized by comprising a step of loading the waste.
delete delete According to claim 1,
The finishing step includes cleaning and arranging the inside of the main body,
The step of installing a new lid,
Packaging repair, cleanup and cleaning,
Uninterruptible construction method of a high- and low-voltage uninterruptible junction box using a recycled composite resin, comprising the step of opening the traffic. delete delete delete

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