JP6261123B2 - Cable trough bridge construction method and cable trough bridge laying members - Google Patents

Description

The present invention relates to a method for constructing a cable trough bridge used for laying a cable trough that lays beside a railroad track and accommodates cables such as electric wires and optical fibers, and a member for laying the cable trough.

  Conventionally, when constructing a cable trough, first, a large amount of heavy concrete trough abutment is manufactured at a manufacturing factory or the like, and the mass manufactured cable trough abutment is, for example, a slope of a slope that is a mountain slope. And then installed in the direction of the cable trough laying, with multiple rows.

  And for the installation of this cable trough abutment, it is necessary to erection the cable trough abutment by first burying the abutment foundation and the root block part in the ground. was there.

  Moreover, in the type using the root anchor block, it was necessary to install a concrete root anchor block on the foundation of the abutment, bury it, and install a concrete cable trough abutment.

  Next, the cable trough is placed on the cable trough abutment, and the cable trough is fixed to the cable trough abutment using, for example, an L angle. Thereafter, cables such as electric wires were laid in the installed cable trough, and the construction of the cable and trough was completed (see FIGS. 7 and 8).

  In this way, in the conventional cable trough construction, as described above, in order to embed the abutment foundation and root anchor block, it is necessary to excavate the relevant part manually, especially on the slope slope of the mountain. In the case of installation, excavation work is extremely difficult and labor is required, and disposal of excavated residual soil has been an issue.

  Moreover, conventionally, since the member used for construction of the cable trough is made of concrete, there is a weight, and it is difficult to carry it to the slope where the cable trough is laid.

  Furthermore, the conventional cable trough construction method does not have an adjustment mechanism such as height adjustment and gradient adjustment on the installed abutment, for example, it takes time and labor to join the abutment before and after the installation direction. It was a thing.

In addition, although the invention described in Unexamined-Japanese-Patent No. 2001-95137 is proposed as a prior art which solves the subject that the manpower excavation of an abutment foundation part or a root block part is required, the said invention is the abutment foundation This is a type in which the trough support base is inserted by the support pile, instead of excavating the section and the root block block. However, the conventional technology still does not have a mechanism for height adjustment and slope adjustment on the trough abutment, and it takes time to align linearly with the abutment before and after the laying direction and solves the problem that it takes time. Not reached.

JP 2001-95137 A

JP 2006-304454 A

Thus, the present invention was devised to solve the above-described conventional problems, and does not require manual excavation of the abutment foundation or the root block, and is installed particularly on the slope of a mountain slope. In this case, the excavation work is not troublesome, and there is no problem with disposal of excavated residual soil, and the members used for the construction of the cable trough are not made of concrete, so the weight is extremely light and the cable trough is laid It is easy to carry to the slope where the slope is . Furthermore , for example, with regard to the installation of cable troughs, adjustment mechanisms such as height adjustment and slope adjustment can be easily performed. From the above, the cable trough bridge construction method and cable trough bridge construction method can be realized at a very low cost. The object is to provide a laying member.

The present invention
For a pair of support piles, use a spacing determination jig to determine the distance between the support piles and drive it into the cable trough bridge construction site. From the top end side of the driven support pile, a pair of ring-shaped support pile insertion rings at both ends A holding rod having a support pile is inserted through the supporting pile into the support pile, attached between the supporting piles, and after adjusting the mounting position of the holding rod, the cable trough bridge extends and contracts on the holding rod. Attach a cable trough fixture that can be adjusted,
Laying the cable trough between the attached cable trough fixtures,
It is characterized by
Or
The attachment position adjustment of the holding rod can be performed by a horizontal reference device provided in the interval determination jig.
It is characterized by
Or
The cable trough fixing tool is provided with a pair of L-shaped angles that are L-shaped from the bottom wall and the side wall, and the inner side surfaces of the side walls are opposed to each other.
It is characterized by
Or
A pair of support piles driven into the construction site of the cable trough, an interval determining jig for determining an interval between the support piles,
From a pair of support pile upper end sides held at a predetermined interval, a support rod fitted with a support pile insertion ring that is inserted through the support pile, the attachment position being adjustable between the support piles, and
A cable trough fixture that is attached to the holding trough so as to be adjustable in the width direction of the cable trough and that fixes the cable trough.
It is characterized by having,
Or
The mounting position adjustment of the holding rod to the pair of support piles can be performed by a horizontal reference device provided in the interval determination jig.
It is characterized by
Or
The cable trough fixing tool is provided with a pair of L-shaped angles that are L-shaped from the bottom wall and the side wall, and the inner side surfaces of the side walls are opposed to each other.
It is characterized by that.

If the construction method of the cable trough bridge according to the present invention and its laying member,
Excavation by manpower at the abutment base and root block block is not necessary, especially when it is installed on the slope slope of a mountain, etc., the excavation work is not laborious and it may be difficult to dispose of the excavated residual soil. In addition, since the member used for the construction of the cable trough is not made of concrete, the weight is extremely light, and it is easy to carry to the slope where the cable trough is laid . Further, for example , with respect to the installation of the cable trough, adjustment mechanisms such as height adjustment and gradient adjustment can be easily performed. From the above, there is an excellent effect that the installation cost of the cable trough can be made extremely low.

BRIEF DESCRIPTION OF THE DRAWINGS It is structure explanatory drawing (1) explaining the structure of this invention. It is a structure explanatory view (2) explaining the structure of the present invention. It is a structure explanatory view (3) explaining the structure of the present invention. It is a structure explanatory view (4) explaining the structure of this invention. It is a configuration explanatory view (5) for explaining the configuration of the present invention. It is a structure explanatory drawing explaining the structure of a space | interval determination jig. It is explanatory drawing (1) of a prior art example. It is explanatory drawing (2) of a prior art example. It is explanatory drawing (3) of a prior art example.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention.

  First, a pair of support piles 1 and 1 are driven into a place where the cable trough 30 is laid, for example, a slope slope of a mountain which is a slope of a mountain (see FIG. 2). The shape of the support pile 1 is not limited at all, but it is preferably a round bar pipe shape and the base end portion having an acute angle shape so that it can be driven smoothly into the ground.

  When driving the support pile 1, it is necessary to keep a constant distance between the pair of support piles 1. It is also necessary to adjust the driving angle.

  Therefore, first, it drives using the space | interval determination jig | tool 19 to hold | maintain the space | interval of a pair of support piles 1 and 1. FIG.

  As an example of the spacing determination jig 19, as shown in FIG. 6, for example, a pair of ring-shaped support pile fitting wheels 20, 20 having a space through which the support pile 1 penetrates are prepared, and the pair of support A member in which the pile fitting wheels 20 and 20 are connected by a predetermined interval determining connecting member 21 is conceivable.

  That is, a predetermined interval is determined while the pair of support piles 1 and 1 are inserted into the pair of support pile fitting wheels 20 and 20, and the pair of support piles 1 and 1 are driven.

  At this time, if the distance determining jig 19 is equipped with a horizontal reference device 22 or the like, for example, the horizontal adjustment and vertical adjustment of the driving angle can be easily performed. Thereby, when a pair of support piles 1 and 1 are driven into the slope, the upper ends of the respective support piles 1 can be leveled and the drive depth of each support pile 1 can be easily adjusted. It becomes.

  As described above, the pair of support piles 1 and 1 are directed in a predetermined laying direction, and are driven so as to continue in a plurality of rows at a predetermined interval. At the time of driving, for example, the upper ends of the pair of support piles 1 and 1 are continuously hit with a scissor, etc., but the base end side of the support pile 1 is in a tapered acute angle state as indicated by the broken line in FIG. Therefore, it can be driven into the ground relatively smoothly.

  Next, the spacing determining jig 19 is extracted from the pair of support piles 1 and 1 that have been driven in, and a pair of ring-shaped fitting wheels 2 and 2 and the pair of ring-shaped fitting wheels 2 from the upper end side of the support piles 1 and 1. A holding rod 4 having a connection member 3 having a substantially round bar shape for connecting 2 is inserted into and attached to the pair of support piles 1 and 1.

  Here, FIG. 4 shows a schematic configuration of the holding rod 4. As described above, the pair of ring-shaped fitting wheels 2, 2 are configured to be clamped and held in a ring shape, and are connected to and attached to both ends of the connection member 3. The connecting member 3 is configured such that the pair of ring-shaped fitting wheels 2 and 2 can be expanded and contracted in the longitudinal direction, for example, by screwing, and the interval between the pair of support piles 1 and 1. Even if the construction is different, it can fully handle.

  A pair of fixing members 8 and 8 for fixing a cable trough fixing tool 7 to be described later are attached to the connecting member 3.

  Here, the cable trough fixture 7 is configured to have, for example, a pair of L-shaped angles, as shown in FIGS. The L-shaped angle is formed in an L shape by the bottom wall 9 and the side wall 10 and is formed so that the inner side surfaces of the side wall 10 face each other with a predetermined interval.

  The fixing member 8 is formed in a substantially L shape by a bottom portion 12 and a side portion 13, and a ring-like attachment 14 is attached and fixed to the bottom 12 by welding or the like. A pair of fixing members 8 and 8 can be mounted and adjusted in the width direction of the pair of support piles 1 and 1.

  Further, a hook-like fastening portion 15 is formed at the upper end of the side portion 13, and the above-described cable trough fixture 7 is fastened from the fastening portion 15.

  The construction of the cable trough bridge and the construction of the cable trough 30 according to the present invention will be described above.

  First, as understood from FIG. 2, the pair of support piles 1 and 1 are driven in a plurality of rows at a predetermined interval in the direction of laying the cable trough 30. As described above, the support pile 1 is configured as a sharp end with a tapered end on the base end side so as to be driven easily.

  Here, conventionally, as understood from FIGS. 7 and 8, the periphery of the abutment foundation 16 and the root block portion 17 of the abutment 18 on which the cable trough 30 is placed is excavated and backfilled manually. In particular, the construction site was a slope and shoulder work because it was a sloped shoulder, and it was a very laborious work. In addition, they had to worry about the remaining excavated soil.

Furthermore, conventionally, when installing the abutment 18 on which the trough cable 30 is placed, there is no height adjustment function or gradient adjustment function, and the connecting work between the abutments 18 and 18, that is, linear sliding with the front and rear abutments. It took a lot of time and work hours. However, the construction method of the present invention does not have such problems.
In the present invention, the above-described driving method can be driven by using a predetermined distance determining jig 19 and easily holding the distance between the pair of support piles 1 and 1.

  Next, a holding rod 4 is attached between the pair of support piles 1 and 1 that have been driven.

  In the present invention, the holding rod 4 can be easily attached. That is, the pair of support piles 1, 1 are inserted into the pair of ring-shaped fitting wheels 2, 2 that are members of the holding rod 4 from the upper ends of the pair of support piles 1, 1 that are driven in, and tightened to this. It is held and the holding rod 4 is attached to the pair of support piles 1 and 1.

  The holding rod 4 can be mounted and adjusted in the height direction, and the holding rod 4 can be attached at any height of the pair of support piles 1 and 1 by so-called stepless adjustment. Can do.

  Further, together with the holding rod 4, the connecting member 3 constituting the holding rod 4 is formed in a round bar shape, so that even if there is a height difference in the laying direction of the cable trough 30, there is no problem with the cable trough. 30 can be laid at an angle. That is, the bottom surface of the cable trough fixture 7 installed on the holding rod 4 having a round bar shape is placed on the outer peripheral surface of the holding rod 4 by point contact, and absorbs any inclination angle. Because it can.

  Next, the above-mentioned cable trough fixture 7 is placed on a holding rod 4 installed on a pair of support piles 1 and 1 laid next to each other in the direction in which the cable trough 30 is laid, and fixed thereto. It is fixed by the member 8.

  As described above, this fixing method is to fix and fix the upper end portion of the side wall 10 which is a constituent member of the cable trough fixture 7 using the fixing portion 15 having a hook shape.

  Thus, the cable trough 30 is installed on the cable trough fixture 7 (see FIG. 1) laid as described above, and the construction of the cable trough 30 is completed.

A predetermined wiring cable or the like is accommodated in the cable trough 30.

DESCRIPTION OF SYMBOLS 1 Support pile 2 Ring-shaped fitting ring 3 Connection member 4 Holding trough 7 Cable trough fixing tool 8 Fixing member 9 Bottom wall 10 Side wall 12 Bottom part 13 Side part 14 Mounting tool 15 Fastening part 16 Abutment base part 17 Root block part 18 Abutment 19 Spacing determination jig 20 Support pile insertion wheel 21 Spacing determination connecting material 22 Horizontal reference device 30 Cable trough

Claims (6)

For a pair of support piles, use a spacing determination jig to determine the distance between the support piles and drive it into the cable trough bridge construction site. From the top end side of the driven support pile, a pair of ring-shaped support pile insertion rings at both ends A holding rod having a support pile is inserted through the supporting pile into the support pile, attached between the supporting piles, and after adjusting the mounting position of the holding rod, the cable trough bridge extends and contracts on the holding rod. Attach a cable trough fixture that can be adjusted,
Laying the cable trough between the attached cable trough fixtures,
A cable trough bridge construction method characterized by this.
The attachment position adjustment of the holding rod can be performed by a horizontal reference device provided in the interval determination jig.
The construction method of the cable trough bridge of Claim 1 characterized by the above-mentioned.
The cable trough fixing tool is provided with a pair of L-shaped angles that are L-shaped from the bottom wall and the side wall, and the inner side surfaces of the side walls are opposed to each other.
The construction method of the cable trough bridge of Claim 1 or Claim 2 characterized by the above-mentioned.
A pair of support piles driven into the construction site of the cable trough, an interval determining jig for determining an interval between the support piles,
From a pair of support pile upper end sides held at a predetermined interval, a support rod fitted with a support pile insertion ring that is inserted through the support pile, the attachment position being adjustable between the support piles, and
A cable trough fixture that is attached to the holding trough so as to be adjustable in the width direction of the cable trough and that fixes the cable trough.
A cable trough bridge laying member characterized by comprising:
The mounting position adjustment of the holding rod to the pair of support piles can be performed by a horizontal reference device provided in the interval determination jig.
The laying member for a cable trough bridge according to claim 4.
The cable trough fixing tool is provided with a pair of L-shaped angles that are L-shaped from the bottom wall and the side wall, and the inner side surfaces of the side walls are opposed to each other.
The cable trough bridge laying member according to claim 4 or 5, wherein the member is laid.

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