JPH0554612U - Struts for falling rock protection fence - Google Patents

Abstract

(57) [Summary] [Purpose] From a topographical perspective, the pillars for rockfall protection fences cannot be lifted up to a predetermined position by a crane for transportation, and if it is necessary to manually transport them, it is light. Disassemble so that it weighs and transport the support. [Structure] A pillar for rockfall protection fence having a joint portion, and a structure capable of disassembling the joint portion to disassemble the pillar into two or three or more parts.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a pillar for supporting a rockfall protection fence provided to prevent the slope from collapsing.

[0002]

[Prior Art]

 Conventionally, pillars for rockfall protection fences, which are provided to prevent the slope from collapsing, are of an integral type that cannot be disassembled into two or more parts.

[0003]

[Problems to be solved by the device]

 Conventionally, the pillars for rockfall protection fences that have been provided to prevent the collapse of slopes are of an integral type that cannot be disassembled into two or more parts. If the prop cannot be lifted up to a predetermined position and carried by a crane, and it must be carried manually, it will be overweight and difficult to carry, shortening the construction period, reducing work safety and costs. There was a problem that significant obstacles would occur in promoting saving. It is an object of the present invention to provide a prop for a rockfall protection fence that solves the problem of carrying an overweight object that occurs when the prop is forced to be carried manually as described above. I am trying.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the support for a rockfall guard fence of the present invention is provided with a single or a plurality of joints in the middle of the support. If the joint is dismantled, it has a structure that allows the pillar to be disassembled into two or three or more parts. Each strut is provided with a separate strut foundation.

[0005]

[Advantageous Effects] Since the structure is configured as described above, if the pillar cannot be hoisted and carried to a predetermined position topographically by a crane and the pillar must be carried manually, The joint portion of the pillar is disassembled and the pillar is disassembled into two or three or more parts. As a result, the overweight stanchion is disassembled into a light weight, which makes it easy to carry by hand. Transport the post foundation into place. The pillar foundation is installed underground. The upper surface of the pillar foundation is often slightly higher than the height of the ground surface. Carry each part of the disassembled stanchion near the stanchion foundation. The bottom of the column is attached and fixed to the upper surface of the column base. On the bottom of the fixed column, the other parts of the column are attached in order from the lower side, and the joint part is assembled and fixed to restore the column. The above work completes the installation of one column. By repeating such an operation, the required number of columns are installed at predetermined positions.

[0006]

【Example】

 An example will be described with reference to FIG. An example in which the present invention is used on a steep slope where the columns cannot be hoisted and transported to a predetermined position topographically by a crane and the columns must be manually transported is shown below. One pillar for rockfall protection fence is composed of one pillar upper part 1, one pillar lower part 2 and one set of joint parts.

One support base 3 is separately provided for each support. The column base 3 is made of reinforced concrete. Carry one column base 3 to a predetermined position. The support base 3 is installed in the ground so that the upper surface of the support base 3 is slightly higher than the ground surface.

As one set of joint parts, two contact plates 4 and eight sets of bolts 7 and nuts 8 are used. The nut 8 is embedded in the holes in the upper column 1 and the lower column 2 as shown below.

The upper part 1 of the column is cylindrical and hollow. The other part of the lower part 2 of the column, except for the mounting foot 5, is cylindrical and hollow. The column lower part 2 excluding the mounting foot 5 is configured by a cylinder having the same diameter as the cylinder of the column upper part 1 and a hollow having the same dimension as the hollow of the column upper part 1. The mounting legs 5 of the lower column 2 are provided to fix the lower column 2 to the column foundation 3. A hole 6 is formed near the end of the lower part 2 of the column on the side opposite to the mounting foot. A hole 6 is formed in the upper part 1 of the column near the end connecting the upper part 1 of the column and the lower part 2 of the column. The number of holes 6 in one column upper part 1 is four. The holes 6 formed in the upper part 1 of the column are all the same in diameter, and the holes 6 are equidistant from each other. A circle is formed by connecting the holes 6 formed in the upper part 1 of the support pillar to each other. The number of holes 6 in one column lower part 2 is four. All the holes 6 formed in the lower part 2 of the column have the same diameter, and the holes 6 are equidistant from each other. A circle is formed by connecting the holes 6 formed in the lower part 2 of the column to each other. The hole 6 formed in the upper part 1 of the column has the same diameter as the hole 6 formed in the lower part 2 of the column. Nuts 8 are embedded in all the holes 6 in the upper column 1 and the lower column 2. The upper column 1 and the lower column 2 are carried near the column base 3. The column lower part 2 is attached and fixed to the upper surface of the column base 3. Place the upper part 1 of the column above the lower part 2 of the column so that the end near the hole 6 formed in the upper part 1 of the column and the end near the hole 6 formed in the lower part 2 of the column make contact with each other over the entire circumference. Temporary placement.

The diameter of the backing plate 4 is slightly larger than the diameter of the upper part 1 of the column. One caul plate 4 is divided into three equal parts from a hollow cylindrical metal by three planes that pass through the circle center line of the cylinder and have an angle of 180 degrees with each other and intersect with the center line of the cylinder circle. The shape of one of the cut pieces is rectangular when viewed from the center line of the cylinder moved 90 degrees from this position. A single pad plate 4 is provided with two holes each at the upper and lower sides, for a total of four holes. The hole of the backing plate 4 has the same diameter as the hole 6 of the upper column 1 and the lower column 2. Each support plate 4 covers the upper column 1 and the lower column 2 equally, and two supporting plates 4 sandwich one column upper part 1 and one column lower part 2 from both sides. Since each of the backing plates 4 has an appropriate size, it is possible to cover all the two holes 6 in the upper part 1 of the column and the two holes 6 in the lower part 2 of the column with a margin. Since the arrangement of the holes in the backing plate 4 is dimensionally matched with the placement of the holes 6 in the upper column 1 and the lower column 2, if the positions of the upper column 1 and the backing plate 4 are adjusted, the two backing plates 4 All the holes can be combined with all the holes 6 (total 8 holes) of one column upper part 1 and one column lower part 2. In this state, one bolt 7 is inserted into each hole of the backing plate 4, and the bolt 7 is fixed by the nut 8 embedded in the hole 6 of the upper column 1 and the hole 6 of the lower column 2. In this way, the eight bolts 7 are inserted into the holes of the two contact plates 4 and the bolt 7 is fixed with the nut 8 to assemble one column.

The installation of one support column is completed by the above work. By repeating such an operation, the required number of columns are installed at predetermined positions.

[0012]

[Effect of the device]

 Since the present invention is configured as described above, it has the effects described below. Conventional columns for rockfall protection fences were of a type that could not be disassembled and disassembled into two or more parts. Therefore, the columns were hoisted to a predetermined position topographically and transported by crane. If it is not possible to carry it by hand and it has to be carried by hand, it will be overloaded and difficult to carry, and it will be a significant obstacle in terms of process and cost. Since the joint part can be disassembled and the pillar can be disassembled into two or three or more parts, it is light in weight and easy to carry by hand, which is very effective in shortening the construction period and cost. At the same time, dangerous work resulting from overweight has been eliminated, which has a significant effect on the safety of construction.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a stanchion installed on a stanchion foundation and taken along the centerline of the cylinder forming the stanchion.

[Explanation of symbols]

 1 Support upper part 2 Support lower part 3 Support base 4 Support plate 5 Mounting foot 6 Holes 7 Bolts 8 Nuts 9 Ground wire 10 Underground

Claims (2)

[Scope of utility model registration request] 1. A falling rock protection fence comprising a single joint part provided at an intermediate part of the column, and having the structure capable of disassembling the joint part to disassemble the column into two parts. Support pillar. 2. A rock fall protection comprising a plurality of joints provided at an intermediate portion of the column, the column having a structure capable of disassembling the joints and disassembling the column into three or more parts. A pillar for a fence.