JP2931830B2 - Rockfall guide fence - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is to suspend a wire mesh with an upper reinforcing rope by a group of columns along a side edge of a slope such as a swamp or a ridge where there is a risk of falling rocks, buffer the falling rocks and reduce the speed. The present invention relates to a rockfall guide fence characterized by a guide fence that guides diagonally downward.

[0002]

2. Description of the Related Art Conventionally, on a relatively steep slope which is close to a road or the like and there is a risk of falling rocks, a plurality of pillars are installed at the top of the slope at horizontal intervals, and each pillar is supported by a hanging rope or the like. Then, the upper part of the wire mesh reinforced by incorporating a number of vertical and horizontal ropes was connected to and supported by the above-mentioned column group, and both sides and the lower part of the wire mesh reinforced by the rope were anchored on the slope and reinforced with the rope. A rock fall protection net is provided that completely covers the slope with a wire mesh and absorbs and receives fall energy such as rock fall. Or, at the lower part or middle part of the slope, a plurality of columns are installed at horizontal intervals, and a wire mesh incorporating multiple horizontal ropes at upper and lower intervals at this column group is stretched.
Rock fluence, etc., which buffers rockfall with a wire mesh reinforced with ropes, is provided.

[0003]

The conventional rock fall protection net is:
As described above, a large-scale structure covering the entire slope is obtained. It is necessary to arrange a large number of pillars and anchors on relatively fragile slopes, which requires a lot of work and labor, and it becomes extremely dangerous work, such as construction and its accuracy, support strength of pillars, wire mesh, reliability Etc. have problems. Conventional rock fluences have a relatively small structure, as described above, which are provided horizontally on the lower side and middle of the slope, but it is also difficult to erection of pillars on the slope and anchor of the supporting rope. This is problematic in terms of reliability and durability, for example, because rock fall is directly received and easily damaged. Both have problems such as basically not having a function of preventing falling rocks or the like from jumping out of the slope and falling.

[0004] The present invention has been developed in view of the above-mentioned circumstances, and the object thereof is to provide a method in which a pillar group built along a side edge of a slope such as a swamp or a ridge is provided on a slope side. Guidance fences with reinforced wire mesh suspended and placed diagonally to the up and down direction of the slope effectively dampen rockfalls on the slope, decelerate and guide it diagonally downward, and receive it with the lower rock fluence. Another object of the present invention is to provide a rockfall guiding fence with improved deceleration, guidance performance and protection performance for rockfalls.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a plurality of columns are provided at intervals along at least one side edge of a slope such as a swamp or a ridge where there is a risk of falling rocks, and the lower the slope, the lower the slope. The pillars are erected in a diagonal arrangement protruding from the slope, and each pillar is tilted and supported to the slope side by a hanging rope anchored on the outside of the slope and left and right balance ropes, and a wire mesh with reinforcing rope is provided on the upper slope side of each pillar. The upper edge of the wire mesh is connected and suspended, and the lower edge of the wire mesh with reinforcing ropes is anchored on the slope side and suspended toward the slope, and the wire mesh with the reinforcing ropes is arranged obliquely with respect to the vertical direction of the slope. It is composed of a guide fence that buffers rockfalls on slopes and decelerates and guides it diagonally downward, and a rockfall guide fence opposite the rock fuence that catches rockfalls on slopes at the bottom of the slopes. Strong ground with good footing The slope is easily and accurately constructed on a small scale along the side edge of the slope, is composed of reinforced wire mesh suspended by excellent strut performance, and is arranged obliquely with respect to the vertical direction of the slope. Absorbs falling rocks obliquely, buffers and decelerates and guides downwards to prevent falling and falling to the side of the slope, and supports and supports low-speed rock fall induced by the rock fuence at the bottom of the slope In addition to the workability, it effectively enhances the deceleration, guidance performance and protection performance of falling rocks.

[0006]

According to the present invention, in the case of a strong scaffolding and strong ground along the side edge of a slope such as a swamp or a ridge which has a risk of falling rocks or the like having the above-mentioned structure, each strut can be easily and accurately positioned. As well as being built well, it is possible to obtain excellent support performance and reliability, for example, it is strongly supported and stabilized by excellent anchoring force, hanging ropes and left and right balance ropes. Also,
The wire mesh with reinforcement ropes is similarly easily and accurately installed on the slope side of the column group with a good scaffold, is also suspended with the excellent column performance described above, and is suspended obliquely with respect to the vertical direction of the slope. It is configured as a guide fence, and this guide fence receives the falling rocks on the slope diagonally and effectively buffers it, moderately decelerates, guides it diagonally downward at a low speed along the lower part of the guide fence, and To prevent falling and falling rocks
Low-speed rockfalls guided by the rock fuence at the bottom of the slope are effectively received and supported, improving workability and low-speed rockfalls, guiding performance, and protection performance. In addition, the facility is extremely compact and small-scale, and can be easily repaired and managed, improving durability.

[0007]

1 and 2 show an embodiment of the present invention. In the figure, a is a slope such as a swamp or a ridge which is close to a road R or the like where there is a risk of falling rocks as shown in the figure, b is a slope protection structure constructed with vertical and horizontal beams on both sides of the slope a, c is a slope A rock drop a, 1 is a post built by hinge connection 2b to a support pedestal above the anchor 2, 1a is a head bracket fixed to the upper portion of the post, 3 is an appropriate means for the head bracket 1a of the post. Suspended rope connected by 4
Is an anchor in which the tip of the hanging rope is hinged 4a,
5 is a left and right balance rope connected to the upper part 1a of the support by a U-bolt or the like, 6 is an anchor at the tip of the balance rope,
Reference numeral 7 denotes a vertical reinforcing rope which is connected to the upper part 1a of the column by appropriate means and has an anchor 8 at its tip, 8 denotes an anchor at the lower edge of the vertical reinforcing rope 7 and the wire mesh 10, and 9a and 9b denote upper edges of the wire mesh 10. 9c is a vertical reinforcing rope installed at a distance from the wire mesh 10 and 12 is a rock fluence on a foundation 11 constructed at the lower part of the slope a on the side of the road R or the like. is there.

In the illustrated embodiment, a plurality of columns 1 are spaced along at least one side edge of a slope a such as a swamp or a ridge where there is a risk of falling rocks, and gradually downward toward the slope a. Each pillar 1 is tilted to the slope side and supported by the hanging ropes 3 and the left and right balance ropes 5 anchored to the outside of the slope a by anchors 4 and 6, and the slopes at the top of each pillar are installed. The upper edge of the wire mesh 10 with the reinforcing ropes 7, 9a, 9b, 9c is connected and hung on the side, and the lower edge of the wire mesh 10 with the reinforcing rope is anchored 8 on the slope a side to face the slope a. The wire net 10 with the reinforcing ropes is suspended and arranged obliquely with respect to the vertical direction of the slope to form a guide fence that buffers the rocks c on the slope, reduces the speed, and guides the slope downward. Lock fuence 12 for catching falling rocks c And summer for falling rocks induction fence, wherein the door.

More specifically, the column 1 is preferably made of an H-shaped steel or the like, and has a slope a where there is a risk of falling rocks c.
(Sawa, ridge, etc.) along at least one side edge (in the illustrated example, both side edges) and hingedly connected to the head of an anchor 2 provided on a firm ground with a relatively good scaffold (hinge pin)
2a, it is built so as to be tiltable to the slope a side, and the distal end of the suspension rope 3 connected to the head metal 1a on the upper part of the support 1 by an appropriate connecting means is anchored 4 to the protective b section, and The ends of the left and right balance ropes 5 and 5 connected to the upper part 1a by U bolts or the like are anchored on both sides of the slope near the support 1.
Then, the columns 1 are slightly inclined toward the slope a and are supported. Further, the struts 1 are arranged in a group of struts 1 which are spaced from each other along the side edge of the slope a, and are arranged so as to gradually protrude toward the slope a toward the lower side as shown in the figure. Further, a head metal 1a provided on each of the columns 1 of the group of columns 1 is provided.
The upper ends of the wire meshes 10 with the reinforcing ropes are suspended by connecting the tips of the vertical reinforcing ropes 7 incorporated in the wire meshes 10 with appropriate connecting means. A guide fence that is hung toward the slope a and is positioned obliquely with respect to the up and down direction of the slope a as shown in the figure, receives shocks such as rocks c on the slope, buffers the speed, and decelerates and guides diagonally downward. doing. This guide fence is
If there is a risk of falling out of the slope a only to the protective work b on one side, it may fall on one side edge, and if there is a risk of falling rocks c etc. protruding to both sides of the slope a as shown in FIG. It is arranged along the part.

[0010] The anchor 2 of the column 1 is a hinge comprising a bolt portion inserted into a drilled hole and filled with concrete or the like as shown in the figure, and a column base with a hinge pin fixed on the bolt portion. A structure having a coupling mechanism is preferably used. The anchors 4 and 6 at the distal ends of the suspension rope 3 and the left and right balance ropes 5 and 5 have a structure having the above-described hinge connection mechanism, a connection ring portion or an appropriate connection fitting on a bolt portion. Apply the one with the structure. As the anchor 8 at the tip of the vertical rope 7 or the lower edge of the wire mesh 10, for example, a pin anchor having a shape as shown in the drawing is applied, and in any case, various anchor mechanisms are applied according to the use.

Further, the wire mesh 10 incorporates horizontal reinforcing ropes 9a and 9b at an upper edge and a lower edge thereof, and incorporates a plurality of vertical reinforcing ropes 9c at appropriate intervals. The reinforcing ropes are assembled and connected with appropriate connecting fittings to reinforce. The upper edge portion of the wire mesh 10 with the reinforcing rope is connected to a vertical metal rope 7 or a short hanging rope (not shown) connected to the upper portion of the wire mesh on the head metal fitting 1a provided on the upper portion of each column 1 or an appropriate connecting metal. At the lower edge of the wire mesh 10, the lower end of the vertical rope 7 and the horizontal reinforcing rope 9 b are anchored 8 at appropriate intervals, and the wire mesh 10 with the reinforcing rope is suspended toward the slope. Further, as shown in the figure, the guide fence is arranged obliquely with respect to the vertical direction of the slope a so as to buffer rocks and the like on the slope, reduce the speed, and guide obliquely downward. A rock fluence 12 is provided at the lower part of the slope a by a foundation 11 so as to receive and support low-speed falling rocks or the like induced by deceleration by the guide fence. The length is relatively shortened and the size is reduced.

The rock fall guide fence has a plurality of columns 1 along at least one side edge or both side edges (illustrated examples) of a slope a such as a swamp or a ridge where there is a risk of falling rock c. Reinforcement ropes 7, 9a,
The upper edge of the wire mesh 10 with 9b, 9c is suspended, the lower edge of the wire mesh 10 with the reinforcing rope is anchored 8 on the slope a side, and is suspended obliquely toward the slope a. The guide fence has a configuration that is obliquely arranged in the vertical direction. The guide fence receives the rocks c on the slope obliquely, buffers it, decelerates it, and gradually drops the rocks c along the lower part of the guide fence. To prevent the falling rocks c and the like from jumping out of the slope a and dropping, and the guided low-speed rocks c and the like can be easily received by the rock fuence 12 opposed to the lower part of the slope a. Supported. Each of the above-mentioned struts 1 is easily and accurately erected on a firm ground with a relatively good scaffold, and is strongly supported and stabilized by the suspension ropes 3 and the left and right balance ropes 5, 5. It has performance and reliability, and the guide fence is constructed easily and accurately as described above, and is suspended by excellent support performance, so that it can be buffered, decelerated and guided by rock fall etc. along with workability. It has high performance and overall protection performance and durability are significantly improved. Also, as shown in the figure, it is smaller and more compact than the slope-covered type.

[0013]

According to the present invention, there is provided a support having a relatively good scaffold and a solid ground along a side edge of a slope such as a swamp or a ridge having the above-mentioned structure and having a risk of falling rocks. Is
In addition to being easily and accurately built, excellent pillar performance and reliability are obtained, such as excellent anchoring force and strong support and stability by hanging ropes and left and right balance ropes. In addition, the wire mesh with reinforcing ropes is similarly easily and accurately installed on the slope side of the pillar group with a good scaffold, is strongly suspended with the excellent pillar performance, and is disposed obliquely with respect to the vertical direction of the slope. The guide fence is suspended as a guide fence. The guide fence receives the falling rocks on the slope diagonally and effectively buffers it, moderately decelerates, and dips the rocks at low speed along the lower part of the guide fence. It guides down and prevents falling rocks etc. from scattering and falling to the side of the slope, and the guided low-speed falling rocks are received and supported by the lower rock fluence effectively and supported by rock fall Low speed, guidance performance, and protection performance are significantly improved. In addition, the facilities are extremely compact and small, and repair and management are easy, and durability is improved.

[Brief description of the drawings]

FIG. 1 is an overall plan view (A) showing an embodiment of the present invention and an enlarged side view (B) of an XX section.

FIG. 2 is an enlarged plan view of a Y part in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Prop 3 Suspension rope 4,6,8 Anchor 5 Balance rope 7,9a, 9b, 9c Reinforcement rope 10 Wire mesh 12 Rock fuence a Slope c Rockfall

Claims (1)

(57) [Claims] 1. A plurality of pillars are arranged at intervals along at least one side edge of a slope such as a swamp or a ridge where there is a danger of falling rocks, and are constructed in a diagonal arrangement gradually projecting toward the slope toward the lower side. Each pillar is tilted and supported to the slope side by a hanging rope anchored on the outside of the slope and the left and right balance ropes, and the upper edge of the wire mesh with reinforcing rope is connected to the upper slope side of each pillar. While hanging, the lower edge of the wire mesh with reinforcement ropes is anchored on the slope side and suspended toward the slope, and the wire mesh with reinforcement ropes is arranged obliquely with respect to the vertical direction of the slope to buffer rockfall on the slope. A rockfall guide fence comprising a guide fence that decelerates and guides diagonally downward, and a rock fuence that catches rockfalls on the slope at the bottom of the slope.