JP6205207B2 - Slope protection structure and method for forming the same - Google Patents

Description

  The present invention relates to a slope protection structure and a method for forming the same, and more particularly, to a slope protection structure formed by stacking a plurality of stone crabs and a method for forming the same.

  Conventionally, stone-crusted so-called futon-mochi has been used to protect slopes in mountains, valleys, roads, residential areas, riverbanks, and the like. For example, Patent Document 1 discloses a unique slope protection structure in which cuboid-shaped stone-packed caskets are stacked in a state where they are moved backward by a certain distance backward. Further, Patent Document 2 discloses a first trunk net for a high altitude that forms a bottom net and a side net by partitioning a single wire mesh material, a second trunk net for a slope, and a third for a low altitude. The first and second trunk nets connect the side nets via a batting net, and the second and third trunk nets connect the side nets. A slope protection structure that overlaps and connects is disclosed.

  A slope protection structure called multi-stage stacking, in which slopes are stepped by excavating slopes as disclosed in Patent Document 1, is applied to slopes with a large slope with a slope of 8 minutes or less. This is because it can be stably piled up and fixed against earth pressure from a steep slope, but for a gentle slope, if the horizontal length along the slope direction is not increased, the subsidence deformation of the rear end This is because the cost increases because it cannot be suppressed. For this reason, a so-called flat structure is used for a gentle slope, such as that disclosed in Patent Document 2, in which a stone claw is placed on the slope as it is.

  The flat structure has a risk of slipping when applied to slopes with a slope of less than 10%. On slopes of 10 to 15 minutes, a scaffold for worker safety when filling stones in the fence. This is applied to gentle slopes where the legal gradient is greater than 10/5 minutes. In addition, the numerical value of the normal slope is large because the slope of the slope is small.

Japanese Utility Model Publication No. 63-86146 JP-A-6-146237 Japanese Patent Laid-Open No. 11-124832

  As described above, the slope with a slope of 10% to 15% is expensive in multi-stage stacking, and the flat structure is unsuitable for safety when stuffing stones or slipping down. There was a problem.

  This invention is made | formed in view of this point, The place made into the objective is to provide the slope protection structure which can be formed at low cost in the slope where a slope is 10 to 15 minutes. is there.

  The slope protection structure of the present invention is a slope protection structure formed by stacking a plurality of stone crabs, having a slope of 10% to 15 minutes, and the front, bottom and back surfaces of the stone crabs Is configured by a bent panel member formed integrally by bending a welded wire mesh panel, and the back surface is configured to be placed on a slope.

  The bent panel member is formed by bending the welded wire mesh panel with two parallel folds, the bottom surface is a portion sandwiched between the two folds, and the front surface is perpendicular to the bottom surface. Preferably, the slope is a portion bent upward from the bottom surface at an angle of the normal gradient. Here, the two creases being parallel refers to the positional relationship between the creases within a range that takes into account errors, manufacturing variations, etc. in the manufacturing and bending process of the welded wire mesh panel. I don't mean. The same applies to the angle of right angle and normal gradient.

  Further, in the bent panel member, it is preferable that b / a is 3/5 or more and 8/5 or less, where a is the distance between the two folds and b is the height of the front surface portion. a is the depth length of the bottom surface (length from the front surface to the back surface).

  In the second stone jar placed on the first stone jar among the plurality of stone jars, the back surface of the second stone jar is connected to the back surface of the first stone jar. It is preferable that they are connected by members. In addition, the 1st stone candy is an arbitrary stone candy with which another stone candy (2nd stone candy) is stacked among the plurality of stone candy.

  The connecting member is preferably a coil.

  The method of forming the slope protection structure of the present invention is the first folding panel in which the slope of the slope is 10% or more and 15% or less, and the front face, the bottom face, and the back face are formed by folding the welded wire mesh panel with two folds. The step of placing the back surface of the member on the lowest part of the slope and placing the bottom surface on the ground continuing from the lower end of the slope, and the front surface, the bottom surface, and the back surface of the first bent panel member A step of filling a stone surrounded by a stone, and a second folded panel member configured by folding a welded wire mesh panel with two folds to constitute a front surface, a bottom surface, and a back surface, and the back surface of the second folded panel member. And placing the bottom surface of the second folded panel member on the first folded panel member filled with stone, and the second folded A step of connecting a lower end portion of the back surface of the panel member and an upper end of the back surface of the first bent panel member by a connecting member; and the front surface, the bottom surface and the back surface of the second bent panel member. And a step of stuffing stones in the remaining portion. The ground continuing from the lower end of the slope on which the bottom surface of the first bent panel member is placed is a substantially horizontal ground.

  In the present invention, the front panel, the bottom panel, and the rear panel are configured by a bent panel member made of a welded wire mesh, and the rear panel is placed on the slope. A ridge can be easily formed, and stone filling can be easily performed for each stone ridge, and a slope protection structure can be formed at low cost.

1 is a schematic side view of a slope protection structure according to Embodiment 1. FIG. 2 is a partial front view of the slope protection structure according to Embodiment 1. FIG. It is a rear view of a part of the slope protection structure according to the first embodiment. FIG. 3 is a right side view of a part of the slope protection structure according to the first embodiment. 3 is a plan view of a part of the slope protection structure according to Embodiment 1. FIG. It is a bottom view of a part of the slope protection structure according to the first embodiment. It is an AA arrow directional view of FIG. It is a BB line arrow directional view of FIG. It is a schematic diagram of the state which disassembled the stone custody concerning Embodiment 1. It is a figure of a middle frame. 6 is a schematic side view of a slope protection structure according to Embodiment 2. FIG. 6 is a partial front view of a slope protection structure according to Embodiment 2. FIG. It is a rear view of a part of the slope protection structure according to the second embodiment. 6 is a right side view of a part of a slope protection structure according to Embodiment 2. FIG. 6 is a plan view of a part of a slope protection structure according to Embodiment 2. FIG. It is a bottom view of a part of the slope protection structure according to the second embodiment. It is an AA arrow directional view of FIG. It is a BB line arrow directional view of FIG. It is a typical side view of the slope protection structure concerning Embodiment 3. It is a partial front view of the slope protection structure which concerns on Embodiment 3. It is a partial rear view of the slope protection structure according to the third embodiment. It is a right view of a part of the slope protection structure according to the third embodiment. 6 is a plan view of a part of a slope protection structure according to Embodiment 3. FIG. It is a partial bottom view of the slope protection structure according to the third embodiment. It is an AA line arrow directional view of FIG. It is a BB arrow directional view of FIG.

  Prior to describing the embodiment, Patent Document 3 is compared with the present invention.

  Patent Document 3 has a common back net arranged so as to straddle a plurality of upper and lower stone ridges along the slope; a back face that is inclined according to the slope angle of the slope and opens. And a plurality of stone clogs, each of which is stacked in a plurality of stages with the back face along the back net, and each back face is closed with the common back net. A structural wall is disclosed. The invention according to Patent Document 3 states, “The technical problem of the present invention is to obtain a stone wall made of stone stone wall that can be installed without cutting or backfilling the slope in a stepped manner. It is intended to be an alternative to multi-stacked structures, as described in paragraph 0005. In the drawings, the gradient is 5 to 7 minutes, and it is assumed that the gradient is applied to a slope having a large slope. From this point, it is clear that the invention is based on a technical idea different from the present invention applied to a slope having a slope of 10% to 15% in order to replace the flat structure. .

  And patent document 3 is characterized by having a common back surface network. It is clear that this back mesh is a flexible rhombus or turtle shell mesh, not a welded mesh. The reasons are as follows. First, as described in paragraph 0021, the back net is fixed with an anchor bolt or the like, or supported by a wire rope and stretched and fixed on a slope. The shape of the welded wire mesh does not change when it is placed on the slope, and the bottom edge does not hit the flat ground part below the slope and does not move.Therefore, there is no need to fix it, and welding is performed to reduce construction costs. The wire mesh is not fixed. In this respect, in Patent Document 3, the purpose of describing the fixing of the back net in the specification is that it is a rhombus metal net or a turtle shell metal net that deforms the back net.

  Next, since the rhombus wire mesh and the turtle shell wire mesh are easily deformed and can be carried in a wound state, a long product manufactured in a factory can be easily carried to a construction site. A rhombus wire mesh or a turtle shell wire mesh can be used as a long product that entirely covers the slope as shown in the drawing of Patent Document 3. However, since it is very difficult to deform the welded wire mesh, it is necessary to transport it in a flat shape, and it is very difficult to transport a long product that covers the entire slope from the factory to the construction site. Sometimes it is impossible.

  And in patent document 3, although the back surface net | network is extended to the road shoulder part of a slope, and the bottom face of the bottom stone crest, such a structure can be formed because it is a flexible rhombus metal net or a turtle shell metal net. Therefore, it is very difficult to form such a structure in a welded wire mesh because it is necessary to bend a plurality of iron wires at the construction site at the same time.

  Furthermore, Patent Document 3 expresses that the back net is “tensioned”. This expression is used for flexible rhombus and turtle shell metal meshes and not for welded wire meshes that do not deform when placed on a slope. In particular, in the paragraph 0021, “stretched on the slope by supporting it with a wire rope” is a rhombus wire mesh or a turtle wire mesh, not a welded wire mesh.

  As described above, the common back net in Patent Document 3 is a flexible rhombus or turtle shell metal mesh, not a welded wire mesh, or a non-flexible wire mesh panel with a rhombus or turtle shell metal mesh on the frame line. It is clear. On the other hand, in the present invention, the front, bottom, and back are integrally formed by bending a single wire mesh panel in each stone claw, so that the strength against the earth pressure on the back is high. There is a difference. Further, in the present invention, since the high strength stone claws are stacked and constructed one by one, it is not necessary to fix the back net on the steep slope, and it is safe and the stone crushing operation can be performed reliably and easily. This is because the invention according to Patent Document 3 has the technical idea of connecting the stone crabs together instead of multi-stage stacking on a steep slope, whereas the present invention is a method with a relatively gentle slope. Has the technical idea of substituting the flat structure on the slope of 10% to 15% and forming a low-cost high-strength stone claw reliably one step at a time. This is because the ideas are clearly different.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following drawings, components having substantially the same function are denoted by the same reference numerals for the sake of brevity.

(Embodiment 1)
As shown in FIG. 1, the slope protection structure according to the first embodiment is a slope protection structure 100 that protects a slope 400 with a slope of 10%. The slope protection structure 100 is formed by stacking three stone-clad baskets 10, 10, 10.

  FIGS. 2 to 8 show a state in which the two stone-clad baskets 10 and 10 are stacked in the slope protection structure 100 of the present embodiment as seen from each direction, and also show the inside. In these drawings, only two stone-filled ridges arranged along the lower end of the slope are shown. FIG. 9 shows the members constituting the stone packed bowl 10.

  The stone packed bowl 10 is composed of a bent panel member 20 formed by bending a welded wire mesh panel at its front face 80 (front face), bottom face 70 and back face 30. The welded wire mesh panel is composed of an iron wire having zinc aluminum alloy plating on the surface, and is formed by arranging a plurality of horizontal lines and vertical lines so as to intersect at right angles and welding the intersections.

  The bent panel member 20 is formed by bending the vertical line of the welded wire mesh panel at two places, and the two folds are parallel to the horizontal line. The front surface 80 is bent at a right angle upward from the bottom surface 70 in one crease, and the back surface 30 is bent upward from the bottom surface 70 at an angle of 10% (45 degrees) from the bottom surface 70 in another fold. The angle formed by the back surface 30 and the bottom surface 70 is 135 degrees.

  The back surface 30 of the stone cradle 10 is placed on the slope 400. The side surface 40 of the stone packed bowl 10 is formed of a trapezoidal welded wire mesh panel. The top lid 50 of the stone cradle 10 is made of a welded wire mesh panel, covers a part of the upper surface portion of the stone cradle 10 and is another stone stacked on the stone cradle 10 (first stone cradle). The entire upper surface of the stone bowl 10 (first stone bowl) is closed together with the bottom surface 70 of the bowl 10 (second stone bowl). Further, in consideration of crazing due to stone filling, a part of the upper lid 50 is set so as to overlap with the bottom surface 70 of the second stone filling bowl 10. In FIG. 5, the upper lid 50 ′ covers the entire upper surface of the uppermost stone packed bowl 10.

  Since the bent panel member 20 is self-supporting when the bottom surface 70 is placed on the ground, it is not necessary to support the front surface 80 when connecting the side surface 40 and a reinforcing frame 90 (described later) with the coil 60, and the construction can be easily performed.

  In the folded panel member 20, the depth a of the bottom surface 70 (distance between the two folds) is 50 cm, the height b of the front surface 80 is 50 cm, and b / a = 1. It can be done easily and can also be done by hand.

<Formation of slope protection structure>
First, a slope 400 with a slope of 10% is formed by cutting or embankment. A sucking prevention material made of a nonwoven fabric is laid on the slope 400 and a flat portion below the slope. This is to prevent the earth and sand on the flat ground and the slope 400 from entering (sucking out) the inside of the stone pack 10 (between stones) due to rain. This is because when the earth and sand are sucked out, the stone packed bowl 10 sinks into the ground.

  Then, at the bottom part of the slope, the stone jar 10 (first stone jar) is assembled. Prepare the folded panel member 20 (first folded panel member), place the back surface 30 on the lowest part of the slope 400, and place the rear end of the bottom surface 70 at the lower end of the slope on the flat area in front of it. The front surface 80 is placed away from the slope 400. The side panel 40 is connected to the folded panel member 20 by the coils 60 and 60 ′, and the plurality of folded panel members 20 are arranged in the same manner along the lower end of the slope, and the adjacent folded panel members 20 and 20 are connected by the coil 60. Link. There are two types of coils, a coil 60 having a small diameter and a coil 60 'having a large diameter, which are appropriately selected depending on the appearance and ease of connection.

  Further, when the adjacent bent panel members 20 and 20 are connected to each other, the reinforcing frame having the same trapezoidal shape as the outer shape of the side surface 40 shown in FIG. The reinforcing frame 90 and the bent panel members 20 and 20 are connected to each other by the coil 60. Further, at the intermediate point in the length direction of the folded panel member 20, the bottom surface 70 and the front surface 80 are hooked and reinforced by using stays 64 which are reinforcing members formed by bending both ends of the iron wire into a hook shape. In addition, the bottom surface 70 and the side surface 40 are also reinforced using stays 64. At this time, the upper lid 50 is not attached.

  Next, stones are packed into a portion surrounded by the front surface 80, the bottom surface 70, the back surface 30, and the side surface 40. As the stone, for example, crushed stone, crushed stone, crushed concrete or the like can be used.

  After the stone is packed, the upper lid 50 is placed thereon and connected to the front surface 80, the side surface 40, and the reinforcing frame 90 by the coil 60 '.

  Next, a folding panel member 20 (second folding panel member) is prepared, and the back surface 30 is placed on the slope 400 continuing on the first stone crusher 10, and the upper surface of the first stone crusher 10 is The rear end of the bottom surface 70 is positioned at the slope 400 at a portion close to the slope 400 where the upper lid 50 is not placed, and the front face 80 is placed away from the slope 400. At this time, the boundary portion between the front surface 80 and the bottom surface 70 of the second bent panel member 20 is disposed slightly in front of the rear end of the upper lid 50.

  Then, the side surface 40 is connected to the second folding panel member 20 by the coil 60, and the plurality of folding panel members 20 are arranged in the same manner along the lower end of the slope, and the adjacent folding panel members 20, 20 are coiled. Connect at 60. In addition, the side surface 40 of the first stone cradle 10 and the bottom surface 70 of the second folded panel member 20 are connected by a coil 60 ', and the lower end portion of the back surface 30 of the second folded panel member 20 and the first folded panel member 20 are connected. The upper end of the back surface 30 of the panel member 20 is connected by a coil 60 '.

  Further, similarly to the formation of the first stone cradle 10, when connecting the adjacent second bent panel members 20, 20, the reinforcing frame 90 is placed at the boundary between the members, and the reinforcing frame 90 And the bent panel members 20, 20 are connected by a coil 60. Further, at the intermediate point in the length direction of the second bent panel member 20, the stay 64 is used to reinforce the bottom surface 70 and the front surface 80 by hooking them, and the bottom surface 70 and the side surface 40 also use the stay 64. To reinforce.

  Next, the stone is packed into the portion surrounded by the front surface 80, the bottom surface 70, the back surface 30, and the side surface 40 of the second stone crushing basket 10. When stuffing stones, a person can work on the upper surface of the first stone jar 10 so that the stones can be stuffed safely and efficiently. Thereafter, the same process is repeated to stack the stone-clad bowl 10 upward along the slope 400. At that time, the uppermost jar filled with stones is the first cradle and the second cradle is stacked.

  In the present embodiment, the stone-clad baskets 10 are formed one by one and packed with stones, so that the slope protection structure 100 can be reliably formed at low cost. Further, the stone packed bowl 10 is manufactured and transported at a factory, and can be easily assembled in a short time by a small number of people around the folding panel member 20 which is self-supporting.

(Embodiment 2)
FIG. 11 shows a slope protection structure 200 according to the second embodiment. FIGS. 12 to 18 show a state in which the two stone-clad tubs 11 and 11 are stacked in the slope protection structure 200 of the present embodiment as viewed from each direction, and also show the inside. In this embodiment, the slope of the slope 410 is 10%, which is the same as in the first embodiment.

  In the present embodiment, the depth of the bottom surface 71 of the stone cradle 11 is 1.6 times that of the first embodiment, and b / a = 8/5, and accordingly, the side surface 41 and the reinforcing frame 91 have horizontal portions. It is longer than that of the first embodiment. Further, the upper lid 51 ′ has a depth longer than that of the first embodiment. The front surface 80, the back surface 30, the coils 60 and 60 ', and the stay 64 are the same as those in the first embodiment. The bent panel member of the present embodiment has a bottom depth 1.6 times that of the bent panel member 20 of the first embodiment, and the other portions have the same configuration as that of the first embodiment. The method for forming the slope protection structure 200 is the same as that in the first embodiment.

  In the second embodiment, the same effect as in the first embodiment is obtained.

(Embodiment 3)
FIG. 19 shows a slope protection structure 300 according to the third embodiment. 20 to 26 show a state in which the two stone-clad tubs 12 and 12 are stacked in the slope protection structure 300 of the present embodiment as viewed from each direction, and also show the inside. In this embodiment, the slope of the slope 420 is 10/5.

  In the present embodiment, the depth of the bottom surface 72 of the stone cradle 12 is 3/5 of the first embodiment, the depth of the upper surface is 1.05 times that of the first embodiment, and b / a = 3/5. In the present embodiment, the slope is 10/5 and the slope is gentler than that of the first embodiment, so that the depth of the bottom surface 72 can be reduced. In accordance with this, the side surface 42 and the reinforcing frame 92 are also shorter on the bottom side than in the first embodiment. The depths of the upper lids 52 and 52 ′ are also longer than that of the first embodiment. Since it is a gentle slope, the back surface 32 is longer than in the first embodiment. The front surface 80 and the coils 60 and 60 'are the same as those in the first embodiment. Since the stay 65 is hooked on the bottom surface 72 closer to the front surface 80 than the first embodiment, the stay 65 is entirely shorter than the first embodiment. The folding panel member of the present embodiment has a bottom surface depth of 3/5 and a back surface depth of 1.27 times that of the folding panel member 20 of the first embodiment, and the angle formed between the bottom surface and the back surface is 146 degrees. Other parts are the same as those in the first embodiment. The method for forming the slope protection structure 300 is the same as that of the first embodiment.

  Also in the third embodiment, the same effect as in the first embodiment is obtained.

(Other embodiments)
The above-described embodiment is an exemplification of the present invention, and the present invention is not limited to these examples, and these examples may be combined or partially replaced with known techniques, common techniques, and known techniques. Also, modified inventions easily conceived by those skilled in the art are included in the present invention.

  There are no particular limitations on the number of steps in which the stone candy is stacked.

  The same type of wire mesh panel of each member forming the stone custody may be used, or another type may be mixed. It is preferable to make the mesh of the wire mesh smaller or increase the diameter of the iron wire used in the weld wire mesh constituting the front surface than the weld wire mesh constituting the back surface. By doing in this way, the welding wire mesh suitable for the front surface which needs to endure the pressure applied from an internal stone, and the back surface which needs to adapt to the unevenness of a slope can be used, respectively. In this case, the diameter of only one of the vertical line and the horizontal line may be changed, or both may be changed.

  The length along the lower end of the slope of each member (folded panel member or upper lid) of the stone candy is not particularly limited. Further, in one slope protection structure, this length may be one kind or a member having a plurality of lengths may be used.

The height b of the front surface is not limited to 50 cm, and can be any height such as 80 cm or 1 m. The depth a of the bottom is not limited. However, b / a is preferably 3/5 or more and 8/5 or less. By setting it as this numerical range, construction becomes easy, the volume of the slope protection structure can be kept small, and the cost can be reduced.

  It is good also as a member comprised only from two surfaces, a front surface and a bottom surface, for a bending panel member. That is, the back surface may be a separate member (wire mesh panel). At this time, a welded wire mesh panel may be used for the wire mesh panel constituting the back surface, or a wire mesh panel with a diamond wire mesh or a turtle shell wire mesh stretched on an iron wire frame may be used. A wire mesh panel made of a welded wire mesh has a feature that it has a lower manufacturing cost and is more resistant to pressure on the surface than a wire mesh panel with a diamond wire mesh or a turtle shell wire mesh on an iron wire frame.

  It is preferable that the surface of the metal mesh constituting the stone-packed rust is rust-proof, and specifically, rust-proof plating (for example, zinc-containing plating), rust-proof coating or rust-proof paint is applied. Is preferred. Zinc-containing plating includes zinc plating and zinc alloy plating. Examples of the antirust coating include a thermoplastic resin coating. Examples of the rust preventive paint include JIS standard rust preventive paint (such as K5621) for steel frames and iron wires, and Japanese paint industry standard rust preventive paint.

  The material and diameter of the welded wire mesh are not particularly limited. The member that connects the welded wire meshes or the wire mesh panel is not limited to the coil, and may be connected with a wire or the like, or a U-shaped screw, a perforated metal plate, and a bolt may be used.

  In slope protection structure, allowable values are that the protection structure does not slide down the slope (sliding safety factor), does not fall (fall safety factor), and does not sink into the ground (maximum ground reaction force). It is important that These can be calculated by stable calculation. However, even if the allowable value is satisfied, if the margin is too large, it becomes over-specification and the cost increases. Therefore, for the slope protection structure of the configuration of the present invention, the law gradient 10%: b / a = 3/5 to 8/5, 8 to 16 steps, the law gradient 10% 1 minute: b / a = 3/5. 5/5, 11-16 steps, legal gradient 10/2 minutes: b / a = 3 / 5-5 / 5, 12-16 steps, legal gradient 10/3 minutes: b / a = 3 / 5-5 / 5, 13 to 16 steps, legal gradient 10% 4 minutes: b / a = 3/5 to 5/5, 13 to 16 steps, legal gradient 10% 5 minutes: b / a = 3/5 to 5/5, Calculations were performed for 8 to 16 stages.

Both the sliding safety factor and the falling safety factor are defined to be 1.50 or more, but these are the minimum when the legal gradient is 10%: b / a = 6/5, 13 steps. The sliding safety factor is 3.97 and the fall safety factor is 1.51, which is the minimum margin. The maximum ground reaction force is determined to be 200 kN / m ² or less, but this is the maximum when the gradient is 10/5: b / a = 4/5, 15 steps. It is 199.1 kN / m ^2, which is the minimum margin.

  As described above, the slope protection structure according to the present invention is low in cost and is useful for protecting a slope with a slope of 10 to 15 minutes.

10, 11, 12 Ishizume bowl 20 Bending panel member 30, 32 Back surface 40, 41, 42 Side surface 60, 60 'Coil 70, 71, 72 Bottom surface 80 Front surface 100, 200, 300 Slope protection structure 400, 410, 420 method surface

Claims (5)

It is a slope protection structure made up of a plurality of stone crabs,
The legal gradient is 10% to 10%,
The front surface, the bottom surface, and the back surface of the stone pack are formed by a bent panel member formed integrally by bending a welded wire mesh panel,
The back is on the slope,
The bent panel member is formed by bending the welded wire mesh panel with two parallel folds,
In the folded panel member, a slope protection structure in which b / a is 3/5 or more and 8/5 or less, where a is a distance between the two creases and b is a height of the front surface portion . Before Symbol bottom surface, wherein a portion held two folds,
The front surface is a portion bent upward at a right angle from the bottom surface,
The slope protection structure according to claim 1, wherein the back surface is a portion bent upward from the bottom surface at an angle of the slope. In the second stone jar placed on the first stone jar among the plurality of stone jars, the back surface of the second stone jar is connected to the back surface of the first stone jar. It is connected by a member, according to claim 1 or 2 slope protection structures described. The slope protection structure according to claim 3 , wherein the connecting member is a coil. A method of forming a slope protection structure,
The legal gradient is 10% or more and 10% or less,
Of the first folded panel member, which comprises a front, bottom, and back surface by folding the welded wire mesh panel with two folds, the back surface is placed on the lowest part of the slope, and the top of the ground that continues from the lower end of the slope Placing the bottom surface on
Filling a stone surrounded by the front surface, the bottom surface and the back surface of the first folded panel member;
Among the second folded panel members that are formed by folding the welded wire mesh panel with two folds to form the front surface, the bottom surface, and the back surface, the back surface is placed on the slope above the back surface in the first folded panel member; Placing the bottom surface of the second folded panel member on the first folded panel member packed with stone;
Connecting a lower end portion of the back surface of the second folded panel member and an upper end of the back surface of the first folded panel member by a connecting member;
Look including the step of packing the stones to the front, the bottom surface and the surrounded on the rear portion of the second folding panel member,
In the first and second folding panel members, when the distance between the two folds is a and the height of the front surface portion is b, b / a is 3/5 or more and 8/5 or less , Method for forming a slope protection structure.

Images