KR102662613B1 - A wire rope assembly of a rockfall prevention facility, a rockfall prevention facility including the same, and a construction method thereof - Google Patents

Abstract

The present invention relates to a wire rope assembly of a rockfall prevention facility, a rockfall prevention facility including the same, and a construction method thereof. The present invention relates to a wire rope assembly that stably supports a net (rockfall prevention net, rockfall prevention measure) using a wire rope and reduces the number of anchors (clamps). The purpose is to reduce worker safety accidents and reduce costs.
The wire rope assembly of the rockfall prevention facility according to the present invention includes a net (2); A first-stage wire rope (11) is wired in a zigzag form from top to bottom and is installed symmetrically along the left and right transverse directions to support the net, and supports the first-stage wire rope at a position where the first-stage wire rope changes direction. A first-stage rope body (10) including a first-stage direction change anchor (12); A second-stage wire rope 21 is wired in a zigzag form from top to bottom on the first-stage wire rope of the first-stage rope body, and is installed symmetrically along the left and right transverse directions to support the first-stage rope body, and the second stage It consists of a two-stage rope body (20) including a two-stage direction change anchorage (22) that supports the two-stage wire rope at the position of changing the direction of the wire rope, and the first-stage rope body consists of two adjacent left and right rope bodies. A single wire rope is installed in a diamond shape, and the two-stage rope body is installed so that two two-stage wire ropes neighboring on the left and right are installed in a diamond shape, forming four small diamonds within the diamond of the first-stage rope body.

Description

Wire rope assembly of a rockfall prevention facility, a rockfall prevention facility including the same, and a construction method thereof {A wire rope assembly of a rockfall prevention facility, a rockfall prevention facility including the same, and a construction method thereof}

The present invention relates to a method of constructing a wire rope used to support a rockfall prevention net or a net in a rockfall prevention measure. More specifically, the present invention relates to a method of constructing a wire rope to stably support the net with uniform force while reducing the number of clamps (fixers). It relates to a wire rope assembly of a rockfall prevention facility that is constructed, a rockfall prevention facility including the same, and its construction method.

This part only provides background information related to the content of this application and does not necessarily constitute prior art.

In general, rockfall prevention facilities are installed in areas where there is a risk of rockfall due to rock formation on the slope of the cut site to prevent the risk of industrial disasters and traffic accidents.

As a rockfall prevention facility, for example, a rhizome net is adhered to the rock wall, a wire rope is crossed vertically and horizontally on the rhizome net, and then the rhizome net is secured at the point where the longitudinal and horizontal wire ropes intersect using anchor bolts. There are rockfall prevention nets that are supported on the sides to prevent falling rocks, rockfall prevention measures installed at the bottom of the slope (roadside, outskirts of complexes, etc.) to prevent falling rocks from encroaching on roadsides, etc., and rockfall protection facilities installed in valleys, etc.

To describe the rockfall prevention facility in more detail, a net (e.g., PVC coated net) covering a slope or rock wall, a wire rope crossing in the longitudinal and horizontal directions so that the net is in close contact with the slope, and the wire rope It consists of clamps for connecting the intersection points and securing the ends of the wire rope.

That is, with the net covering the slope, wire ropes are placed in the vertical and horizontal directions, and the intersection portions of the wire ropes and the ends of the wire ropes are fixed with clamps.

The wire rope of the rockfall prevention net according to the prior art is installed in a diamond shape, honeycomb shape, cross shape, etc.

Patent document No. 10-0353772, which confirms the background technology of the present invention, includes a safety net installed on a slope of a cut site and fixed to anchor bolts at the edge of the slope excluding the bottom, and a safety net installed on the outside of the safety net for fixing the safety net. In a safety net with a plurality of wire ropes installed longitudinally on the surface, each wire rope is installed in a zigzag shape facing diagonally and is separated into upper and lower plates at the portion facing the adjacent wire rope to maintain a mutual diamond shape. The fastening clip is fixed to the fastening groove formed on both sides of the bottom of the upper plate, the protrusion formed on the upper part of the lower plate to be inserted into the fastening groove and the end is curved to be concave, and the fastening clip is located in the center of both sides of the upper and lower plates. It is a safety net for preventing rockfall that includes a fastening hole formed and a U-shaped bolt so that it can be inserted into the fastening hole and fixed with a nut.

Conventional rockfall prevention facilities require the use of a large number of clamps (fixers) because wire ropes are installed in a single layer, and this phenomenon causes problems such as safety accidents for workers and increased costs. To be more specific, since the worker stands on the slope and fixes the clamp to the slope (by driving the anchor with a hammer to secure it) and constructs the wire rope in a diamond shape, the more clamps there are, the longer the work time is. Because it can cause shaking when driving, there is a high risk of workers tripping or falling, and there is a problem of increased construction costs due to the increase in labor costs due to the material cost of the clamp and the longer work time.

Registered Patent No. 10-0353772

The present invention is intended to solve the problems described above, and includes a wire rope assembly of a rockfall prevention facility that stably supports a net (rockfall prevention net, rockfall prevention measure) using wire rope while reducing the number of anchors (clamps). The purpose is to provide rockfall prevention facilities and construction methods.

The wire rope assembly of the rockfall prevention facility according to the present invention includes a net; A first-stage wire rope that is wired in a zigzag form from top to bottom and is installed symmetrically along the left and right transverse directions to support the net, and a first stage that supports the first-stage wire rope at the direction change position of the first-stage wire rope. A single-stage rope body including a direction change anchor; A second-stage wire rope that is wired in a zigzag form from top to bottom on the first-stage wire rope of the first-stage rope body and is installed symmetrically along the left and right transverse directions to support the first-stage rope body, and a second-stage wire rope of the second-stage wire rope It consists of a two-stage rope body including a two-stage direction change anchor that supports the two-stage wire rope at the direction change position, wherein the first-stage rope body has two first-stage wire ropes adjacent to the left and right installed in a diamond shape, The two-stage rope body is characterized in that two two-stage wire ropes neighboring on the left and right are installed in a diamond shape, forming four small diamonds within the diamond of the first-stage rope body.

According to the wire rope assembly of the rockfall prevention facility according to the present invention, the rockfall prevention facility including the same, and its construction method, the first-stage rope body and the second-stage rope body are installed on the net to support different areas and a direction change anchor (clamp) is installed. ), it reduces the number of workers' working hours, and ultimately, in the case of rockfall prevention nets, it has the effect of preventing workers from falling or falling by reducing the working time on slopes.

In addition, although the number of direction change anchors is reduced, the first-stage rope body and the second-stage rope body support the net more densely than the conventional single-layer diamond-shaped rope body, so stability is also superior.

In addition, there is an effect of reducing construction costs by reducing the quantity of materials for the direction change anchor and thereby shortening the work time.

Figure 1 is a plan view of the construction state of the net according to the wire rope construction method of the rockfall prevention facility according to the present invention.
Figure 2 is a plan view of the construction state of a single-stage rope body according to the wire rope construction method of the rockfall prevention facility according to the present invention.
Figure 3 is a plan view of the construction state of a two-stage rope body according to the wire rope construction method of the rockfall prevention facility according to the present invention.
Figure 4 is a diagram of a first-stage/second-stage direction change anchor according to the wire rope construction method of the rockfall prevention facility according to the present invention.
Figure 5 is another example of a 1-stage/2-stage direction change anchor in the wire rope construction method of a rockfall prevention facility according to the present invention.
Figure 6 is a diagram of a tension sphere applied to the wire rope construction method of a rockfall prevention facility according to the present invention.
Figure 7 is a diagram of a rockfall prevention measure to which the wire rope construction method of the rockfall prevention facility according to the present invention is applied.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. The terms described below are defined in consideration of the functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, the definition should be made based on the contents throughout this specification.

As shown in Figure 1, the wire rope assembly of the rockfall prevention facility according to the present invention includes a net (2) installed on the slope (1), a first-stage wire rope (11), and a first-stage direction change anchorage (12). 2 supporting the net (2) and the first-stage rope body (10), including the first-stage rope body (10) supporting the net (2), the second-stage wire rope (21) and the second-stage change anchor (22) It includes a single rope body (10), and the construction method is 1. Laying of net - 2. Construction of 1-stage diamond-shaped rope body (hereinafter abbreviated as '1-stage rope body') - 3. 2-stage diamond-shaped rope body ( (hereinafter abbreviated as 'two-stage rope structure') is comprised of construction stages, and the specific methods for each stage are as follows.

1. Net installation (Figure 1).

Lay the net (2) on the slope (1). Installation of the network 2 can be performed using known techniques, so detailed descriptions are omitted.

2. One-stage rope construction (Figure 2).

A first-stage rope body (10) is constructed on the net (2), and the net (2) is supported toward the slope (1) through the first-stage rope body (10).

The first-stage rope body 10 includes a plurality of first-stage wire ropes 11 and a plurality of first-stage direction change anchors 12.

The first-stage wire rope 11 is installed in a zigzag shape along the vertical direction. Here, the zigzag shape is intended to shape the first-stage rope body 10 into a diamond shape, that is, a plurality of first-stage wire ropes 11 are installed along the left and right transverse directions, and at this time, the neighboring ones are installed symmetrically left and right to form a diamond shape. to form.

The first-stage direction change anchor (12) is installed at a position where the first-stage wire rope (11) changes direction in a zigzag shape, and is fixed through an anchor fixed in the slope to support the first-stage wire rope (11). At this time, the first-stage direction change anchor (12) fixes the two first-stage wire ropes (11) adjacent to each other on the left and right together.

The first-stage direction change fixture 12 can be used in various configurations, and specific examples will be described below.

In this way, the first-stage wire rope 11 and the first-stage direction change anchor 12 are installed to construct the first-stage rope body 10.

3. Two-stage rope construction (Figure 3)

The second-stage rope body (20) is constructed on the first-stage rope body (10), and the first-stage rope body (10) and the net (2) are supported toward the slope (1) through the second-stage rope body (20).

The two-stage rope body 20 includes a plurality of two-stage wire ropes 21 and a plurality of two-stage direction change anchors 22.

The two-stage wire rope 21 is installed in a zigzag shape along the vertical direction. Here, the zigzag shape is intended to make the two-stage rope body 10 into the same diamond shape as the first-stage rope body 10, and the neighboring two-stage wire ropes 21 along the left and right transverse directions are installed symmetrically left and right to form a diamond shape. Let it form.

The two-stage direction change anchor 22 is installed at a position where the two-stage wire rope 21 changes direction in a zigzag shape, and is fixed through an anchor anchored in the slope to support the two-stage wire rope 21. At this time, the two-stage direction change anchor (22) fixes the two two-stage wire ropes (21) adjacent to each other on the left and right together.

The two-stage direction change anchor 22 can be used in various configurations and may be the same as the first-stage direction change anchor 12, and specific examples will be described below.

In this way, the two-stage wire rope 21 and the two-stage direction change anchorage 22 are installed to construct the two-stage rope body 20.

The upper starting position and the lower ending position of the two-stage wire rope 20 are the center between the first-stage rope bodies 10 that are adjacent to each other on the left and right to form a diamond, and the second-stage rope body 20 is The wire rope 21 is parallel to the first-stage wire rope 11 on the left side of the first-stage rope body 10 at the same inclination (center between two neighboring first-stage wire ropes 11) and the first-stage wire on the right. Cross the rope (11) in a zigzag manner.

At this time, the two-stage direction change anchorage 22 is placed in the center of the diamond space formed by the first-stage rope body 10.

Therefore, the second-stage rope body 20 forms a diamond space and has a structure that divides the diamond space of the first-stage rope body 10 into four small diamond spaces, and ultimately, the second-stage wire rope 21 forms a rhombus space. Since the net (2) and the first-stage wire rope (11) are supported toward the slope (1) at a different position from the wire rope (11), the net (2) is connected through the first-stage rope body (10) and the second-stage rope body (20). ) is stably and uniformly supported everywhere.

The first-stage direction change anchorage 12 and the second-stage direction change anchorage 22 for constructing the first-stage rope body 10 and the second-stage rope body 20 have the same configuration, and are shown in Figures 2, 3, and 4. As can be seen, for example, it has a structure with a space penetrating up and down and an open space on the right side, and is open in the forward and backward directions so that the first and second stage wire ropes 11 and 21 are routed, and the structure is open in the forward and backward directions through the upper and lower spaces. It is anchored through 1st/2nd stage anchors (various materials such as rebar) (13, 23) that are inserted into the ground and anchored.

The first/second stage anchor (13.23) has two functions of drilling and installation, and while the conventional anchor hole is drilled using a separate drilling tip and the anchor is installed in the anchor hole, the anchor used in the present invention is The 1st/2nd stage anchor (13.23) has drilling tips (13a, 23a) formed at the lower end and can be installed after directly drilling an anchor hole in the ground.

The first-stage direction change anchor 12 and the second-stage direction change anchor 22 that perform this function are, for example, a bending form illustrated in the drawing so that a rod of circular cross-section has the above structure, and the structure is a certain distance from each other. A pair of lower supports (12a, 22a) spaced apart and parallel to each other, lower connection portions (12b, 22b) connecting one side of the lower supports (12a, 22a), extending upward from the other side of the lower supports (12a, 22a) and vertical portions 12c and 22c that are parallel to each other, upper supports (12d and 22d) formed in the same direction as the lower supports (12a and 22a) in the vertical portions (12c and 22c), and ends of the upper supports (12d and 22d). This is the structure of the upper connection parts (12e, 22e) that connect.

It is preferable that the lower supports (12a, 22a) and the upper supports (12d, 22d) have angles that diverge from each other toward opposite sides of the vertical portions (12c, 22c).

Figure 5 shows another example of the first-stage direction change anchorage 12 and the second-stage direction change anchorage 22, and the first-stage direction change anchorage 12 and the second-stage direction change anchorage 22 are connected to the upper support portion 12d. ,22d) are not connected to the upper connection parts 12e and 22e, but are cut off from each other and open, and after the fixing clips 12f and 22f are inserted into this opening, a nut is attached to the threaded part formed on the outer peripheral surface of the upper support parts 12d and 22d. (12g, 22g) is concluded.

The fixing clips 12f and 22f may include an approximately semicircular groove on the inner surface into which the anchors 13 and 23 are inserted.

The first-stage direction change anchor (12) and the second-stage direction change anchor (22) of this structure can tension the first/second stage wire ropes (11, 21) by using the movement of the fixing clips (12f, 22f). You can.

Hereinafter, additional configurations of the present invention will be described.

1. Rope tensioner (30).

As shown in FIGS. 2 and 3, the rope tensioner 30 is installed between both ends of the first-stage wire rope 11 and the second-stage wire rope 21 to connect the first-stage wire rope 11 and the second-stage wire rope. Pull (21) to keep the tension tight.

As shown in FIG. 6, the rope tensioner 30 is anchored to a tension plate 31, a slope, having winding parts 32-1, 32-2 around which first-stage/second-stage wire ropes 11 and 21 are wound. It includes an anchor 33 for fixing the tension plate 31, and a fixture for fixing the first/second stage wire ropes 11 and 21 to the winding part 32, for example, a plurality of U-bolts 34. and nuts are included.

The winding parts (32-1, 32-2) are structured to change the direction of the one-stage/two-stage wire ropes (11, 21) coming down from the top to the bottom, wind them roughly in a circle, and guide them to the bottom. Two It is made up of layers and is straight, with a curved portion formed at the bottom of the first-layer winding portion (32-1) in accordance with the direction of the first- and second-stage wire ropes (11, 21), and the second-layer winding portion (32-2) ) has a curved part formed at the top.

The U-bolt (34) and nut are applied to a total of four locations on both the upper and lower sides of the first-floor winding section (32-1) and on both upper and lower sides of the second-floor winding section (32-2).

The rope tensioner 30 is used during installation of the first/second stage wire ropes (11, 21), for example, in places where the first/second stage wire ropes (11, 21) cannot be closely adhered to the slope due to severe curvature of the slope. It is installed.

When installing the 1st/2nd stage wire ropes (11,21), if the 1st/2nd stage wire ropes (11,21) are not tensioned and are loose, 1st/2nd stage is attached to the winding part (32) of the rope tensioner (30). Pull while winding the wire ropes (11, 21) to tension the first/second stage wire ropes (11, 21) and then secure them with U-bolts (34).

2. Rope fixture.

Although not shown in the drawing, the first-stage wire rope 11 and the second-stage wire rope 21 naturally cross each other, that is, the first-stage wire rope 11 is placed on the net 2 and the first-stage wire When the two-stage wire rope 21 is placed on the rope 11, the first-stage wire rope 11 and the second-stage wire rope 21 intersect in an “X” shape.

In this way, a rope fixture is installed at the intersection to maintain the installed position where the first-stage wire rope 11 and the second-stage wire rope 21 are crossed.

The rope fixture can be assembled by wrapping the first-stage wire rope (11) and the second-stage wire rope (21) from the top and bottom or both left and right and using fasteners (bolts and nuts, etc.), or the first-stage wire rope (21). 11) and the two-stage wire rope 21 can be inserted and anchored into the ground while covering the top. The latter anchoring type rope fixture includes a covering part that covers the two-stage wire rope (21) overlapped on the first-stage wire rope (11), and two anchoring pins that extend on both sides of the covering part in the longitudinal direction and are inserted and anchored in the ground. It is a structure that includes parts and is installed in the longitudinal or transverse direction.

Alternatively, the anchoring type rope fixture may be formed in a cross shape including four anchoring pin portions.

In addition, the anchorage-type rope fixture can be equally applied to the first-stage direction change anchorage 12 and the second-stage direction change anchorage 22 described using FIG. 5 as an example. That is, the rope fixture has the above structure with a rod of circular cross-section. It has a bending form illustrated in the drawing, and its structure consists of a pair of lower supports spaced apart from each other at a certain distance and parallel to each other, a lower connection part connecting one side of the lower support, and extending upward from the other side of the lower support to each other. It has a structure of a parallel vertical part, an upper support part formed in the same direction as the lower support part in the vertical part, and an upper connection part connecting the ends of the upper support part.

The present invention is applied to rockfall prevention nets, as shown in FIGS. 1 to 3, and also to rockfall prevention measures, as shown in FIG. 7.

In the case of rockfall prevention measures, the net is installed between beams (3) erected on the ground or on a concrete foundation on the ground at a certain distance from each other, and the first-stage rope body (10) and the second-stage rope body (20) are used as described above. It is installed in the same way as a rockfall prevention net, and the first/second stage direction change anchors (12, 22) are not supported on the slope.

In addition, the present invention can be constructed in a facility without a net using only the first-stage rope body (10) and the second-stage rope body (20).

1: pardon, 2: ruin
3: beam,
10: 1-stage rope body, 11: 1-stage wire rope
12: 1st stage direction change anchor, 13: 1st stage anchor
20: 2-stage rope body, 21: 2-stage wire rope
22: 2-stage direction change anchor, 23: 2-stage anchor
30: rope tensioner, 31: tension plate
32: winding part, 33: anchor

Claims (7)

A first-stage wire rope (11) that is wired in a zigzag form from top to bottom and is installed symmetrically along the left and right transverse directions to support a net installed on a slope, and the first-stage wire at a position where the first-stage wire rope changes direction. A first-stage rope body (10) in which two first-stage wire ropes adjacent to each other on the left and right are installed in a diamond shape, including a first-stage direction change anchor (12) for supporting the rope;
A second-stage wire rope 21 is wired in a zigzag form from top to bottom on the first-stage wire rope of the first-stage rope body, and is installed symmetrically along the left and right transverse directions to support the first-stage rope body, and the second stage It includes a two-stage direction change fixture (22) that supports the two-stage wire rope at the direction change position of the wire rope, and two two-stage wire ropes are installed in a diamond shape, and four small ropes are installed within the diamond of the first-stage rope body. A two-stage rope body (20) forming a diamond;
It is installed on the first-stage wire rope and the second-stage wire rope and includes a rope tensioner (30) that pulls the first-stage wire rope and the second-stage wire rope to maintain tension,
The rope tension tool includes a tension plate 31 having winding parts 32-1 and 32-2 around which the first-stage/second-stage wire rope is wound, an anchor 33 fixed to the slope and fixing the tension plate, and Includes a fixture for fixing the first/second stage wire rope to the winding unit,
The winding parts (32-1, 32-2) are a two-layer structure in which the first-stage wire rope and the second-stage wire rope that come down from the top to the bottom are changed to the top, wound in a circle, and then guided to the bottom, 1 The rockfall prevention facility is characterized in that the layer winding section 32-1 and the second floor winding section 32-2 are each straight, and the first floor winding section has a curved portion formed at the bottom, while the second floor winding section has a curved section formed at the top. of wire rope assemblies. The method according to claim 1, wherein the first-stage direction change anchor and the second-stage direction change anchor include a pair of lower supports (12a, 22a), lower connection parts (12b, 22b) connecting one side of the lower support, and the other side of the lower support. Vertical portions 12c and 22c extending upward and parallel to each other, upper supports 12d and 22d formed in the same direction as the lower support portion in the vertical portion, and upper connection portions 12e connecting the ends of the upper support portion. 22e) A wire rope assembly of a rockfall prevention facility, characterized in that the structure includes. The method according to claim 1, wherein the first-stage direction change anchor and the second-stage direction change anchor include a pair of lower supports (12a, 22a), lower connection parts (12b, 22b) connecting one side of the lower support, and the other side of the lower support. Vertical parts (12c, 22c) extending upward and parallel to each other, upper supports (12d, 22d) formed in the vertical part in the same direction as the lower support part, and fixing clips (12f, 22f) fitted to the upper support part. ) and nuts (12g, 22g) screwed to the upper support to secure the fixing clip. The wire rope assembly of the rockfall prevention facility. The method according to claim 1, comprising anchors (13, 23) for fixing the first-stage direction change anchorage and the second-stage direction change anchorage to the slopes, respectively, and the anchors include perforation tips (13a, 23a) at the lower ends to be used for both perforation. A wire rope assembly of a rockfall prevention facility, characterized in that it is installed. delete A net installed on the slope; A rockfall prevention net including a wire rope assembly of the rockfall prevention facility according to claim 1 that supports the net,
Or, a rockfall prevention facility, characterized in that it is a rockfall prevention measure comprising props installed on the roadside, a net installed between the props, and a wire rope assembly of the rockfall prevention facility according to claim 1 that supports the net. As a method of constructing a rockfall prevention facility according to claim 6,
The first step of installing a network;
The net is supported by wiring a single-stage wire rope in a zigzag pattern from top to bottom and installing a first-stage direction change anchor at the direction change position. Multiple single-stage wire ropes are installed symmetrically left and right along the left and right transverse directions. A second step of constructing a single-stage rope body;
A second-stage wire rope is installed on the first-stage rope body to support the net and the first-stage rope body, and the second-stage wire rope is installed to overlap the first-stage wire ropes disposed on both left and right sides of the first-stage rope body. A method of constructing a rockfall prevention facility comprising a third step of constructing a two-stage rope body.

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