WO2013012175A2

WO2013012175A2 - Prefabricated trench type cable trough and construction method thereof

Info

Publication number: WO2013012175A2
Application number: PCT/KR2012/004792
Authority: WO
Inventors: 김태흥
Original assignee: 합자회사 거광산업
Priority date: 2011-07-15
Filing date: 2012-06-18
Publication date: 2013-01-24
Also published as: WO2013012175A3; KR101123242B1

Abstract

Disclosed are a cable trough, which is of a trench type and may be implemented in a prefabricated form, and a construction method thereof. The cable trough, according to the present invention, includes: a bottom member which is buried with concrete on top of a bottom surface so as to be the bottom of the cable trough; a plurality of groove portions which are formed on the top surface of the bottom member so as to protrude in the lengthwise direction thereof and in an upward or downward direction; and side plates and partition plates which are fitted and coupled in the groove portions so as to form the shape of a box. At this point, the bottom member is formed in the separate or integrated type with reference to each of the groove portions, wherein the separate type is integrally formed with blade plates which spread out to both sides at the lower portion of the groove portions and the blade plates, which neighbor each other, may be connected to coupling plates. Herein, the groove portions may be attached with tape with a thickness of 1.5~2.0mm. In addition, buried ribs in the shape of a grid are formed to protrude on the outside surfaces of the side plates, and the buried ribs are preferably perforated with burying holes, which have a diameter of at least 10mm. Meanwhile, the mounting method of the present invention includes the steps of: exposing the groove portions of the bottom member to the upper side of the bottom surface at the time of concrete pouring of the bottom member with respect to the bottom surface and carrying out the pouring such that the bottom member and the top surface of the bottom surface are horizontally in alignment with each other; after finishing the interior construction of a tunnel and cutting the middle of the tape by a knife in the lengthwise direction thereof, inserting the side plates and the partition plate to the inside of the groove portions while making the tape engaged at both sides; and pouring concrete to the outside of the side plates again.

Description

Prefabricated trench cable trough and construction method

The present invention relates to a trench type cable trough, and more particularly in the field, rather than a separately manufactured cable trough for laying power lines, communication lines, signal control lines, etc. in high-speed railway, subway, general railway, light rail, maglev train, etc. The present invention relates to a prefabricated trench type cable trough that can be fixed by being buried in a cement concrete trench form and its installation method.

As the central axis of all traffic moves from road traffic to rail traffic, the importance of railroads and the accuracy and speed of railroads are more demanding than ever. These present and future railways are composed of power lines that move railways, communication lines for signal transmission and accurate control, and signal control lines. In addition, the railway track is an important infrastructure of the national infrastructure, and the cable troughs installed on the railroads are the central nerves of all telecommunications that accommodate even the optical cables that are the backbone of the national telecommunications and the military ships necessary for military operations. The facility is a cable trough.

Such cable troughs should be the most economical, rugged and safe facilities, protecting the cables of their importance from sunlight, snow, rain, natural disasters and man-made disasters.

In the past, cable troughs made of cement concrete or cable troughs made of PASCON were used. All of these have been installed and maintained in a separate space for installation on tunnels or bridges, after making and installing products thereon. However, this method requires a double construction cost and a separate cost of managing the trough.

Conventional cement concrete troughs were thick enough to affect the width of the bridge or tunnel due to the characteristics of the cement concrete, the lid is also too heavy to open and close very uncomfortable and too much breakage rate. Such cement concrete troughs are manufactured and cured, piled, loaded, transported, unloaded, on-site installation, there are statistics that there is a statistic that occurs as much as 15%.

In addition, a case of cement concrete troughs installed on site has been reported to be damaged several Km of the entire product due to freezing in the cold weather due to absorption rate.

PASCON cable trough of another material has the vulnerability to generate deadly toxic gas in case of fire by using decabrom and antimony trioxide together to secure flame retardancy because it is very difficult to flame. Since there is an unreasonable point in the coupling structure, there is a serious problem of widening the width of bridges or tunnels with unnecessary space.

On the other hand, the cable troughs constructed in bridges or tunnels are made of cement concrete by pouring cement concrete to maintain a specified height and linearity in a continuous continuous trough divided by a variable partition wall material so that power lines, communication lines, and signal control lines are separately stored. It is very difficult and possibly impossible to install smoothly without grooves on the cotton. Improper construction can lead to major accidents, even if you grind and grind the surface, because the cement concrete quality is significantly degraded and the sheath of the cable installed inside is damaged, and if the sheath is damaged, malfunctions or errors can occur.

The construction method to solve this uncertainty and to completely protect the cable is to install the formwork for cement concrete pouring when the longitudinal trough gutter side wall is constructed. do.

Installing the formwork, marking the height in levels and straightening the alignment to the transit for cement concrete placement is referred to as the horizontal view. Even in this horizontal view, it is too difficult to install a distance of several hundred meters to a certain linear or height due to impact or vibration during cement concrete pouring.

Even if the construction is difficult like this, after the formwork is removed, the wall is rough, scratched and unsightly. Severe mortar plastering rough wall of the trough trench, which will soon fall and become ugly.

In order to solve this problem, a trench type cable trough has been disclosed in Korean Patent Application No. 10-2011-0037113 (filed on April 21, 2011) filed by the present applicant.

As shown in FIG. 1, the trench type cable trough has a plurality of trough trench forms (1) using a metal material or a synthetic resin material in which both sides of the top and the longitudinal direction are opened on the inner surface to be troughed by concrete pouring in the longitudinal direction. It is characterized in that it is formed so as to be buried in the concrete (10) by coupling continuously installed.

However, such a trench type cable trough has been found to be a big problem in the work in the tunnel section.

That is, as shown in Figure 2, in the tunnel 20 section after the foundation work with concrete on the bottom surface 10, the lining 21 is installed in the tunnel 20, the lining 21 is installed The work bench 30 is required, and this work bench 30 will work while attaching the wheel 31 to the bottom of the leg. Therefore, when the trench type cable troughs are installed in advance during the foundation work of the bottom surface 10, the work platform 30 is not moved by the trench type cable troughs, and thus the lining 21 cannot be performed. .

The present invention has been devised to solve the above problems, and when the bottom surface foundation work, after placing the floor concrete embedded in the cable trough so as to expose only the top surface of the bottom member fitting groove of the cable trough, to perform the lining operation smoothly It is an object of the present invention to provide a prefabricated trench type cable trough and a method of installing the same, after fitting the side plates of the cable trough to the upper surface of the exposed bottom member, and then cast concrete again.

The present invention to achieve the above object,

In a cable trough for storing cables such as power lines, communication lines, signal control lines, etc. on the floor of a bridge, tunnel or earthwork section,

The bottom member which is embedded in the upper concrete of the bottom surface to be the bottom of the cable trough, and a plurality of grooves formed to protrude in the longitudinal direction and the upper or lower side on the upper surface of the bottom member, the groove portion is fitted into the enclosure shape It provides a prefabricated trench-type cable trough comprising a side plate and a partition plate to build.

At this time, the bottom member is manufactured in a separate type based on each groove portion, the lower wing plate is formed integrally on both sides of each groove portion, the adjacent wing plate may be connected to the coupling plate, the connecting plate is integral with the groove portion It may be formed.

Here, the tape may be attached to the groove portion of thickness 1.5 ~ 2.0mm.

In addition, a lattice-shaped buried rib is formed on the outer surface of the side plate, and the buried rib having a diameter of at least 10 mm is preferably drilled in the buried rib, but the shape of the punched hole may be any shape and is not separated from the cement concrete. If you do not.

At this time, both sides of the upper end of the side plate is formed integrally curved support portion wider so that the lid is raised, the extension portion may be integrally formed to form a boundary wall with the track side in the track side support portion.

Or, one side of the side plate is formed integrally curved to be wider to raise the lid, and the other side is integrally shared so that the drainage side lid is raised together while surrounding the boundary wall with the drainage to be formed between the track side and the trough May be formed

Or, the present invention,

Placing and burying the grooves of the floor member to the upper side of the floor when the concrete is poured on the floor, and burying the upper surfaces of the grooves of the floor members horizontally to coincide with the concrete upper surface;

After completing the interior work of the tunnel, cutting the middle of the tape with a knife in its longitudinal direction, and inserting the side plate and the partition plate into the groove part while the tape snaps to both sides; And

It provides a method of installing the prefabricated trench-type cable trough, characterized in that it is built, including;

As described above, the prefabricated trench type cable trough according to the present invention is manufactured by a new method so as not to cause any inconvenience in lining work of the tunnel.

The present invention can be freely selected by using the bottom member produced in one piece or separate type, and the side plate can also be produced in various forms to properly cope with the design of each section.

In addition, the use of tape can prevent exposure of the groove, minimize the horizontal imbalance between the concrete floor and the floor member, and the tape trough is firmly constructed by the tape jamming when inserting the side plate and partition plate. .

1 shows a diagram of a prior art filed by the applicant,

2 is a view showing a problem in the tunnel construction of the trench cable trough,

3 is a view showing a prefabricated trench type cable trough installed in accordance with the present invention,

Figure 4 is a perspective view of the bottom member of Figure 3,

5 is a view showing a state that the tape is attached to the bottom member of FIG.

Figure 6 is a state installed by the bottom member without the tape,

Figure 7 is a state installed by the bottom member is attached to the tape,

8 is a perspective view of the side plate of FIG.

9 is a view showing a state in which the trough is completed by combining the bottom member and the side plate and the partition plate,

10 is a view showing a gradient form in the groove portion,

11 is a view showing a state in which the tape is fitted to the groove part of the gradient,

12 is a perspective view showing another embodiment of the bottom member of FIG.

13 is a view showing a state to be installed by the bottom member of FIG.

14 is a view showing the appearance of several different forms of the side plate.

Hereinafter, with reference to the accompanying drawings will be described the prefabricated trench cable trough and its construction method according to a preferred embodiment of the present invention.

Prefabricated trench type cable trough according to the present invention, as shown in Figure 3, the bottom member 100, which is poured with concrete during the foundation work of the bottom surface 10 in the tunnel and is fitted on the bottom member 100 Side plates 110 and partition plates 120.

3 and 4, the bottom member 100 has a groove 101 for fitting the side plate 110 and the partition plate 120 on its upper surface along the longitudinal direction of the bottom member 100. It is formed to protrude upward. The groove is composed of a side plate groove for fitting the side plate 110 and a partition plate groove for fitting the partition plate 120, each groove 101 is formed to protrude above or below the body of the bottom member 100. Thus, the outer side of the groove portion 101 is buried in the concrete of the base surface 10. At this time, the concrete of the bottom surface 10 may be preferably fitted so that its top surface is the same height as the top surface of the groove portion of the bottom member 100. And the main body of the bottom member 100 is preferably formed through the hole (102) drilled up and down in several places in order to increase the bonding force with the bottom surface 10 concrete.

The bottom member 100 of the present invention is a tape on the upper portion of the groove portion 101 as shown in Figure 5 for the purpose of matching the height with the bottom surface 10 concrete, and to prevent the concrete from entering the groove portion 101. 130 is attached.

The tape 130 has a thickness of about 1.5 to 2.0 mm, and is attached until the side plate 110 or the partition plate 120 is installed and detached when the plates are attached or the side plate 110 or the partition plate 120. It can be used as it is when it is installed.

This tape 130 is to prevent the groove portion 101 from shrinking when the concrete is cured as shown in Figure 6 as well as to prevent the top and bottom unbalanced. That is, as shown in (a) of FIG. 6, even if the bottom surface 10 is filled with the same height as the floor member 100, when the concrete is cured, it contracts as shown in (b) and the bottom surface ( 10) and the height of the bottom member 100 is wrong.

Therefore, when the tape 130 is attached to the groove portion 101 of the bottom member 100, as shown in Figure 7 (a), the concrete of the bottom surface 10 is filled up to the tape 130, this concrete When the curing is contracted as shown in (b), and as shown in (c) peeling off the tape 130, the bottom surface 10 and the bottom surface of the groove of the bottom member 100 will have the same height. Since the thickness of the tape 130 varies slightly depending on the volume of the concrete of the bottom surface 10, the thickness of the tape 130 to be calculated or pre-calculated should be considered.

When the bottom member 100 of the prefabricated trench type cable trough is completed as described above, after performing lining work or the like in the tunnel, the side plate 110 is inserted into the groove 101 of the bottom member 100, and the side plate ( After the second concrete is placed on the outside of the 110, the partition plate 120 is fitted into the groove 101 to complete the prefabricated trench type cable trough.

The side plate 110 is a plate erected in the longitudinal direction as shown in Figs. 8 and 9, the lower end portion is formed with a side plate fitting portion 111 to be fitted to the groove portion 101, 2 on the outer surface of the side plate 110 In order to increase the bonding force with the concrete 20 to be poured into the car, the buried rib 112 is formed to protrude integrally. The buried ribs 112 may be formed in a lattice form so as to improve the bending structure of the side plates 110, and buried holes 113 are formed on each side plate ribs 112 to be more firmly coupled with the concrete 20. . The buried hole 113 serves to bite and bite the concrete 20 into the top, bottom, left, and right of the landfill ribs 112 buried in the concrete 20, and at least 10 mm in diameter to have an effect thereof. Can be achieved.

When fitting the side plate 110 or the partition plate 120 according to the present invention into the groove portion 101 can be used to remove the tape 130 attached to the bottom member 100, as well as use without removing Later, the coupling force between the side plate 110 and the partition plates 120 and the groove 101 may be further increased.

That is, the bottom member 100 is produced by injection or compression molding, there is a problem that is not easily demolded due to the bite between the groove 101 and the mold when demolding the bottom member 100 after injection molding, As shown in FIG. 10, the groove portion 101 is designed to have a form of a light beam narrowing. When the upper portion of the groove portion 101 is wider as described above, the side plate 110 and the partition plate 120 are shaken by the play when the sandwich plate is inserted, thereby causing a problem in stability. However, without removing the tape 130 attached to the groove portion 101, as shown in Fig. 11 (a) by cutting the center portion with a knife to cut the cut line 131, as shown in (b) the side plate 110 And when the partition plate 120 is inserted, since the side plate 110 and the partition plate 120 bites the tape 130 on both sides thereof, it becomes an interference fit with the groove portion 101 and is more firmly erected.

On the other hand, the bottom member 100 according to the present invention may be manufactured in a separate type as shown in Figures 3 and 4, it may be manufactured in one piece as shown in Figures 12 and 13. That is, the separate bottom member 100 separately forms each groove portion 101 as shown in FIG. 4 to integrally form the wing plates 103 on both sides of the lower surface of the groove portion 101, and adjacent wing plates 103. The coupling plate 105 is connected to the upper surface of the structure. In addition, the integrated bottom member 100 has a structure in which a member connecting the upper portions of the grooves 101 spaced apart from each other is integrally formed as shown in FIG. 12. Therefore, the integrated bottom member 100 is embedded in the concrete of the bottom surface 10, only the portion with the groove portion 101 as shown in Figure 13, the removable bottom member 100 is only the portion with the groove portion 101 Rather than being embedded in the concrete up to the wing plate 103 can be prevented from leaving the source.

Side plate 110 according to the present invention may be formed integrally bent support portion 117 to be open to the outside so that both sides are symmetrical, as shown in Figure 14 (a). Alternatively, as shown in FIG. 14 (b), the extension part 118 forming the track side boundary wall may be replaced so that the boundary wall to be present between the trough and the track can be replaced by the side plate 110 without placing the cement concrete. It may be further formed. And as shown in (c), as well as the trough side, as well as the drainage side cover must be raised together side plate 110 is formed with a support portion 117 on one side while the other side of the sharing part surrounding the partition between the trough and the drain ( 119 may be integrally formed.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art can be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims You will understand.

10: bottom 20: secondary concrete

100: bottom member 101: groove

103: wing plate 105: bonding plate

110: side plate 111: side plate fitting

112: landfill rib 113: landfill

117: base portion 118: extension portion

119: shared unit 120: partition plate

130: tape 131: cut line

Claims

In a cable trough for storing cables such as power lines, communication lines, signal control lines, etc. on the bottom surface 10 of a bridge, tunnel, or earthwork section of a railway (excluding a bridge, tunnel, and history),

A plurality of bottom members 100 embedded with concrete on the bottom surface 10 to be the bottoms of the cable troughs, and protruding longitudinally and upwardly on the top surfaces of the bottom members 100. A groove portion 101 and a side plate 110 and a partition plate 120 which are fitted to the groove portion 101 to form an enclosure shape, wherein the bottom member 100 is based on each groove portion 101. Prefabricated trench type, characterized in that the separation plate, the lower portion of each groove portion 101 is formed integrally with the wing plate 103 to be opened to both sides, the coupling plate 105 is connected to the adjacent wing plate 103 Cable trough.
In a cable trough for storing cables such as power lines, communication lines, signal control lines, etc. on the bottom surface 10 of a bridge, tunnel, or earthwork section of a railway (excluding a bridge, tunnel, and history),

A plate-shaped bottom member 100 which is buried together with concrete on the top of the bottom surface 10 to be the bottom of the cable trough, and protrudes longitudinally and downwardly on the top surface of the bottom member 100. Prefabricated trench-type cable trough, characterized in that it comprises a plurality of grooves 101 formed, and the side plate 110 and the partition plate 120 to be fitted to the groove portion 101 to form an enclosure shape.
The method according to claim 1 or 2,

Prefabricated trench type cable trough, characterized in that the groove portion 101 is attached to the tape 130 of thickness 1.5 ~ 2.0mm.
The method of claim 3, wherein

A prefabricated trench type is characterized in that a lattice-filled rib 112 protrudes from an outer surface of the side plate 110, and a buried hole 113 having a diameter of at least 10 mm is drilled in the buried rib 112. Cable trough.
The method of claim 4, wherein

Both side upper ends of the side plate 110 are integrally formed with a curved support portion 117 to be wider so that the lid is raised, and the extension portion 118 is integral with the track side support portion to form a boundary wall with the track side. Prefabricated trench cable troughs, characterized in that formed by.
The method of claim 4, wherein

One side of the side plate 110 is formed integrally curved support portion 117 to be wider so that the lid is raised, and the other side of the side plate 110 while covering the boundary wall with the drainage path to be formed between the track side and the trough Prefabricated trench type cable trough, characterized in that the shared portion 119 is formed integrally so as to be raised together.
The method of claim 3, wherein

After cutting the middle of the tape 130 in the longitudinal direction to form a cut line 131, the side plate 110 and the partition plate 120 while the tape 130 to bite both sides of the groove portion 101 Prefabricated trench cable troughs characterized by inserting into the inside.