KR-20260063164-A - APPARATUS FOR FIXING UNDERGROUND PIPE FOR TRANSMISSION AND DISTRIBUTION OF ELECTRICITY

Abstract

The present invention relates to a fixing device for underground pipes used for power transmission and distribution, which effectively prevents sagging of the underground pipe at a distance from the manhole by utilizing a manhole as a support base and an organic combination of high-strength reinforcing bars and tension members. The underground pipe fixing device for power transmission and distribution according to the present invention comprises: a support block (10) that is buried at a certain distance from a manhole (1) where the underground pipe (2) is fixed and supports and fixes the underground pipe from the bottom; a plurality of hollow reinforcing bars arranged between the manhole and the support block, with both ends in the longitudinal direction fixed to the manhole and the support block respectively to support the manhole and the support block; a tension member (50) that is wired inside the hollow portion of the hollow reinforcing bar and is installed in the manhole and the support block to support the manhole and the support through tensile force; and four displacement sensors (60) that are installed at a certain distance from each other along the circumferential direction around the hollow reinforcing bar to detect bending of the hollow reinforcing bar. It includes a controller that determines the bending of the hollow rebar based on the detection value of the displacement sensor and transmits the determination result to a management server and a manager's portable terminal, wherein the hollow rebar comprises an upper hollow rebar (20) installed on the upper part of the support block, a lower hollow rebar (30) installed on the lower part of the support block, and a U-shaped bend formed to form an upper and lower connecting part, wherein the upper and lower connecting part is connected to the upper hollow rebar and the lower hollow rebar through a coupler from the outside of the support block and the tension member is wired inside the directional hollow rebar (40), and a locking member that is installed on each side in the longitudinal direction of the upper hollow rebar and the lower hollow rebar and is supported inside the support block to support the support block, wherein the tension member is wired along the upper part of the manhole, the upper hollow rebar, the directional hollow rebar, the lower hollow rebar, and the lower part of the manhole, and both sides in the longitudinal direction are respectively the It is fixed to the top and bottom of the manhole.

Inventors

• 오진택

Assignees

• 오진택

Dates

Publication Date

20260507

Application Date

20241030

Claims (4)

1. A support block that is buried at a certain distance from a manhole where the underground pipe is fixed, and supports and fixes the underground pipe from the bottom; A plurality of hollow reinforcing bars arranged between the manhole and the support block, with both ends in the longitudinal direction fixed to the manhole and the support block respectively to support the manhole and the support block; A tension member that is wired inside the hollow portion of the hollow reinforcing bar and is installed in the manhole and support block to support the manhole and support through tensile force; Four displacement sensors installed at regular intervals along the circumferential direction on the periphery of the hollow reinforcing bar to detect bending of the hollow reinforcing bar; It includes a controller that determines the bending of the hollow reinforcing bar based on the detected value of the displacement sensor and transmits the determination result to a management server and a manager's portable terminal. The above-mentioned hollow reinforcing bar is characterized by being formed by bending into a U-shape to form an upper hollow reinforcing bar installed on the upper side of the support block, a lower hollow reinforcing bar installed on the lower side of the support block, and an upper and lower connecting part, wherein the upper and lower connecting part is connected to the upper hollow reinforcing bar and the lower hollow reinforcing bar through a coupler on the outside of the support block and the tension member is wired inside the directional hollow reinforcing bar, and a locking member is installed on each side in the longitudinal direction of the upper hollow reinforcing bar and the lower hollow reinforcing bar and is supported on the inside of the support block to support the support block.
2. A fixing device for underground pipes for power transmission and distribution according to claim 1, characterized by indicating the displacement of the tension member through an inspection means comprising: a through hole formed openly in the upper connecting portion of the directional hollow reinforcing bar; an inspection tube arranged toward the ground and fixed at the upper end to the ground, which is flexibly connected through a corrugated tube whose interior communicates with the through hole; a stopper for opening and closing the upper opening of the inspection tube; an inspection rod movably mounted inside the inspection tube and having its lower end connected to the tension member; a scale formed on the inner circumference of the inspection tube along the direction of movement of the inspection rod; and an indicator needle formed at the upper end of the inspection rod and pointing to the scale.
3. A fixing device for underground pipes for power transmission and distribution according to claim 1 or claim 2, wherein one or more of the upper and lower hollow reinforcing bars are formed to slope downward toward the manhole and include one or more inlet holes through which groundwater from the ground flows in and an outlet hole formed at an end that is received inside the manhole, and a collection container mounted on the manhole and collecting groundwater discharged through the outlet hole.
4. A fixing device for underground pipes for power transmission and distribution according to claim 1 or claim 2, wherein the tension member is wired along the upper part of the manhole, the upper side hollow reinforcing bar, the lower side hollow reinforcing bar, and the lower part of the manhole, and both ends in the longitudinal direction are fixed to the upper part and the lower part of the manhole, respectively.

Description

Apparatus for fixing underground pipe for transmission and distribution The present invention relates to a fixing device for underground pipes for power transmission and distribution, and more specifically, to a fixing device for underground pipes for power transmission and distribution that fixes an underground pipe connected to a manhole using the manhole as a support base. Transmission and distribution cables can be divided into methods of installation in the air using utility poles and methods of burying them underground. Furthermore, underground burial methods can be classified into the direct burial method, where cables are buried directly in the ground; the conduit method, where cables are inserted into underground pipes; and the culvert method, where cables are installed by forming supports on both sides of a tunnel-shaped underground structure. Among these, the conduit method is widely used because it poses less risk of damage compared to the direct burial method, is less expensive to install than the culvert method, and allows for easy reinstallation and expansion of cables. However, the pipe-type system had the problem that underground pipes frequently shifted from their original buried positions due to changes in the underground environment, requiring unnecessarily wide excavation for maintenance. Registered Patent No. 10-2151805 describes a bracket part and a fixing part that can be deformed according to the diameter and burial depth of an underground pipe, Registered Patent No. 10-2151809 describes fixing an underground pipe installed at an angle, and Registered Patent No. 10-0882183 describes maintaining the spacing between underground pipes. Published Patent No. 10-2003-0010227 describes an underground pipe that is fixed to a manhole and disposed underground for installing transmission and distribution cables underground. In order to provide an expansion function at a predetermined location adjacent to the manhole fixing part where shear force due to ground subsidence occurs, the underground pipe is divided into an inlet pipe fixed to the manhole and a main pipe based on said predetermined location and connected, and an expansion connection part is provided at the connection end of said inlet pipe and main pipe to provide an expansion function in the longitudinal direction, thereby preventing damage to the underground pipe near the manhole. According to conventional technology, sagging of the underground pipe is inevitable as it moves further away from the manhole, and since the method of fixing the underground pipe is not linked to the manhole, there are limitations in preventing sagging, or even if the manhole is used, the fixing force is not sufficient to prevent sagging of the underground pipe. FIG. 1 is a cross-sectional view of the installation state of an underground pipe fixing device for power transmission and distribution according to the present invention. FIG. 2 is an exploded perspective view of an underground pipe fixing device for power transmission and distribution according to the present invention. FIG. 3 is a drawing showing an inspection means applied to an underground pipe fixing device for power transmission and distribution according to the present invention. FIG. 4 is a drawing showing an induced drainage configuration using an underground pipe fixing device for power transmission and distribution according to the present invention. In the following description of the present invention, specific descriptions of related known functions or configurations will be omitted if it is determined that such descriptions would unnecessarily obscure the essence of the invention. Furthermore, the terms described below are defined in consideration of their functions within the present invention, and these definitions may vary depending on the intentions or practices of the user or operator. Therefore, such definitions should be based on the content throughout this specification. As shown in FIGS. 1 and 2, the underground pipe fixing device for power transmission and distribution according to the present invention includes a support block (10) for fixing an underground pipe (2) connected to a manhole (1), a hollow reinforcing bar (an upper hollow reinforcing bar (20), a lower hollow reinforcing bar (30), and a direction-changing hollow reinforcing bar (40)) for connecting and fixing the manhole (1) and the support block (10), a tension member (50) wired through the hollow reinforcing bars (20, 30, 40) and supporting the support block (10) through tensile force, a displacement sensor, and a controller, and the specific configuration thereof is as follows. The underground pipe (2) is installed so that one side is supported by the manhole (1), and the support block (10) supports the underground pipe (2) at a distance from the manhole (1) to prevent the underground pipe (2) from sagging. The support block (10) is preferably a three-dimensional block of reinforced concrete and is in the