JP2000336655A - Slope surface reinforcing unit, banking reinforcing structure using it, and banking reinforcing construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a slope reinforcing unit self-supportable on the ground while making it convenient for transportation and storage by fitting a net member constituting a slope, to the longitudinal side parts of leg members of L-shape from the side view, and making the leg members rotatable with respect to the net member. SOLUTION: Leg members 3 of L-shape from the side view formed of round metal bars or plates are rotatably fitted by coil-like connecting members 4 to a net member 2 formed of welded wire gauze, rhomboid wire gauze or tortoise-shell wire gauze to constitute a slope reinforcing unit 1. Oblique beam members 5 are connected to both ends of L-shape of the leg members 3 for reinforcement. When stored and transported, the leg members 3 are rotated onto the net member 2 side to form the slope reinforcing unit 1 in plate shape. At an installation site, the leg members 3 are rotated to be vertical to the net member 2, and the slope reinforcing unit 1 is self-supported using the L-shaped bottom side parts. The slope reinforcing unit 1 can thereby be easily stored and made convenient for transportation, so that workability can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope reinforcement unit which reinforces an embankment slope to prevent collapse, and more particularly to a slope reinforcement unit arranged to maintain the shape of the slope, The present invention relates to an embankment reinforcing structure and an embankment reinforcing method used.

[0002]

2. Description of the Related Art Conventionally, sandbags, concrete frames, and the like have been used to reinforce an embankment slope, but with the recent promotion of greening, such members have become difficult to adopt. Therefore, a round bar is welded to form a lattice-shaped wire mesh, and the welded wire mesh is arranged on a slope to reinforce and to vegetate and green the welded wire mesh.

That is, the embankment is approximately 25 cm to 30 c
The soil is laminated and compacted every m, and an embankment reinforcing member made of a mesh-like synthetic resin is laid to reinforce the embankment itself. The laying portion is set within a certain range from the slope, and is calculated by a calculation in consideration of slippage of earth and sand.
At the same time, a slope reinforcer is provided to form the slope and support the earth pressure. The slope reinforcer and the embankment reinforcer are connected to reinforce the entire embankment including the slope. In addition, a mesh sheet for vegetation is provided inside the slope reinforcing member to integrate embankment stability and greening and protection of the slope.

FIG. 7 shows a conventional slope reinforcing unit. In this method, a metal round bar is set at a predetermined position, and the whole is welded in a lattice shape to make an L shape in side view. Therefore, the slope reinforcing unit 21 is self-standing at the L-shaped bottom 22.

[0005]

However, since the bottom portion 22 of the L-shape becomes a projection, it is difficult to transport the L-shaped bottom portion 22 to the construction site after bending the L-shape at the factory. Also, the presence of protrusions takes up space during storage,
It was inconvenient and uneconomical. On the other hand, I
If it is shaped like a letter, it will be convenient to transport and store, but it will not stand on the ground as it is, so it will be necessary to attach another member to stand up to the slope of the embankment slope. For this reason, there has been a demand for a slope reinforcing unit that can be self-supporting without taking much time for transportation and taking up a storage space.

Accordingly, the present invention provides a slope reinforcement unit which can be easily formed into a flat plate, and which can reduce the number of construction steps, reduce the space during transportation and storage, and facilitate transportation and storage. It is an object of the present invention to provide an embankment reinforcing structure and an embankment reinforcing method used.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the gist of the present invention is to provide an L-shaped leg member in side view and an L-shaped vertical member of the leg member. A net member which is attached to the side portion to form a slope, and which relates to a slope reinforcing unit in which the leg member is rotatable with respect to the net member. At least places are connected and reinforced with diagonal beams. More preferably, a bent portion is provided at the tip of the L-shaped bottom of the leg member, and an embankment reinforcing member made of a mesh-like synthetic resin is fixed via a connecting member inserted into the bent portion. In particular, the connection member is formed of a grid-like welded wire mesh having a crest in the middle, and the mesh of the embankment reinforcing member is inserted into the crest, and a connecting bar is inserted between the crest and the mesh. The embankment reinforcing member is fixed, or the connection member is formed of a grid-like welded wire mesh having a folded portion at one end, and the mesh of the embankment reinforcing member is inserted into the folded portion to provide the embankment reinforcing member. Is fixed.

Further, the present invention relates to an embankment reinforcing structure in which leg members constituting adjacent left and right slope reinforcing units are connected to each other with a tying tool, using the above-described slope reinforcing unit. , The tying tool has a ω-shaped cross section or σ
It is a U-shaped spring material, a pair of U-shaped bodies that can be fitted to each other, or a pair of folded portions that are h-shaped in side view. And, more preferably,
A bent portion is provided at the end of the L-shaped vertical side of the leg member constituting the slope reinforcing unit, and the lower end of the mesh member constituting the upper slope reinforcing unit is inserted into the folded portion, thereby forming the upper and lower leg portions. The present invention relates to an embankment reinforcement structure to which surface reinforcement units are connected.

[0009] Further, using the slope reinforcing unit as described above, the L-shaped leg member of the slope reinforcing unit is turned to the net member side and transported in the form of a flat plate. Rotate to be perpendicular to the net member, and
In addition to making the bottom part of the character stand on the ground surface and connecting the embankment reinforcing member via a connecting member, at the same time, connecting the leg members of the adjacent left and right slope reinforcing units with a tying tool, , The L-shaped bottom part of the leg member, the connecting member and the embankment reinforcing member are respectively buried in the embankment, and the upper part of the folded part provided at the tip of the L-shaped vertical side part of the leg member is The present invention relates to an embankment reinforcing method in which a lower end of a net member of a slope reinforcing unit is inserted and upper and lower slope reinforcing units are connected to form an embankment by sequentially overlapping the slope reinforcing units.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a slope reinforcing unit is installed on a slope of an embankment in order to maintain the shape of the embankment, and is connected vertically and horizontally to reinforce the embankment.
Here, as the net member constituting the slope, a welding wire net produced by plating or resin coating or the like, a turtle wire net, a rhombic wire net, or the like formed by connecting intersections of wires in a twisted manner. Wire meshes such as expanded metal or various lattice members such as grating can be used. It is not impossible to use a flame-retardant resin net instead of wire nets.

The mesh member is rotatably attached to a leg member having an L-shape in side view. That is, it is attached to the L-shaped vertical side to form a slope, and the L-shaped bottom can stand on the ground surface independently. And since the leg member can rotate with respect to the net member,
If the leg members are turned to the net member side to be in a flat plate state, the transportation is easy and the storage is convenient. On the other hand, if the leg member is rotated so as to be perpendicular to the net member at the installation site, the leg member can be easily self-standing on the ground surface using the L-shaped bottom of the leg member.

If at least two or more (for example, L-shaped ends) of the leg members are connected by diagonal beams, the slope reinforcing unit forms a triangle as a whole in side view. Excellent in strength against earth pressure and the like. Depending on the mesh of the mesh member, it is also possible to green the wall with the slope reinforcing unit itself, but when the mesh is large or when it is desired to green more quickly, a mesh sheet for vegetation is provided inside the mesh member. You just need to arrange them. In this case, the mesh sheet is finer than the mesh member, and integrates the stability of the embankment and the greening and protection of the slope. Further, it is preferable to install an embankment holding member made of a nonwoven fabric or the like inside the mesh member.

When the embankment is formed, an embankment reinforcing member made of a mesh-like synthetic resin is laid to reinforce the embankment itself. However, if a bent portion is provided at the tip of the L-shaped bottom of the leg member, The embankment reinforcing member can be easily fixed via the connecting member. In other words, if the connecting member is a grid-like welded wire mesh with a crest in the middle, the mesh of the embankment reinforcing member is inserted into the crest, and the connection bar is inserted between the crest and the mesh, the fixing is easily completed. You do it. Alternatively, even if the connecting member is a grid-like welded metal mesh having a folded portion at one end, and the mesh of the net embankment reinforcing member is inserted into the folded portion, the fixing of the embankment reinforcing member is also easily completed. The connecting member may be formed in a coil shape, and the mesh of the embankment reinforcing member may be inserted into each coil, and the connecting bar may be inserted and fixed.

In order to form a retaining wall by using the above-described slope reinforcing unit, the slope reinforcing unit is connected vertically and horizontally according to the size of the retaining wall. Here, a tie is used to connect the leg members of the adjacent left and right slope reinforcement units. As the tying tool, for example, a spring material having a cross section of ω-shape or σ-shape, a pair of U-shaped bodies that can be fitted together, a pair of h-shaped folded portions in side view, band fixing,
An openable metal ring or the like can be used. Further, in order to connect the upper and lower slope reinforcing units, a folded portion is provided at the end of the L-shaped vertical side of the leg member constituting the slope reinforcing unit, and the folded portion constitutes the upper slope reinforcing unit. What is necessary is just to insert the lower end of a member. In addition, even if it uses a coil-shaped connecting member, upper, lower, left and right slope reinforcement units can be easily connected. That is, if the coil is rotated over the leg members of the adjacent slope reinforcing unit, the coil is easily inserted and the connection is completed.

Next, a method of reinforcing the embankment using the above-described slope reinforcing unit will be described. First, the L-shaped leg member of the slope reinforcing unit is turned to the net member side to be in a flat plate state. In this state, since there is no projection, storage and transportation are extremely simple.

Then, at the installation site, the leg member is rotated so as to be perpendicular to the net member, and the slope reinforcing unit is self-standing using the L-shaped bottom. Further, a mesh-shaped embankment reinforcing member used for reinforcing the embankment itself is laid in a predetermined range, and is connected to the leg member via the connecting member by the above-described method. At the same time, the adjacent left and right slope reinforcement units are connected using the above-mentioned binding device.

Subsequently, the soil is laminated on the embankment reinforcing member approximately every 25 cm to 30 cm inside the slope reinforcing unit, and is compacted by a vibrating roller or the like. Further, the slope reinforcement unit is connected to the upper side by the above-described method, and a reinforced embankment is constructed by repeating the same method.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a slope reinforcing unit of the present invention. As shown in FIG. 1, the slope reinforcing unit 1 includes a net member 2 and a leg member 3 having an L-shape when viewed from the side, and the leg member 3 is turned with respect to the net member 2 by a coil-shaped connecting member 4. It is movably mounted. The diagonal beams 5 are connected to the L-shaped ends of the leg member 3 and reinforced.

In FIG. 1, the wire member 2 has a wire diameter φ.
A 6 mm metal round bar is set at a predetermined position, the whole is welded in a grid, and a plated or resin-coated welded wire mesh is used. However, the present invention is not limited to a welded wire mesh, and a diamond wire mesh or a turtle wire mesh can also be used. Here, a diamond wire net having a wire diameter of 4.0 mm and a mesh of 100 mm (horizontal diagonal length of 160 mm) or the like can be used. In this case, the tensile strength per 1 m in the vertical direction is 6.25 tons. It is. If necessary, a wire having a wire diameter of 3.2 mm, a wire having a mesh of 80 mm, or the like can be used. The wire diameter of the turtle net is 4.0
mm or 3.2 mm, and those having a mesh of 80 mm or 100 mm can be used. Here, for the same wire diameter and mesh, the wire mesh has a higher tensile strength than the diamond wire mesh, and the wire mesh having a wire diameter of 4.0 mm and a mesh of 100 mm has a tensile strength of 10.5 tons.

The wire diameter of these metal meshes is 8 mm or less, preferably 5 mm or less from the viewpoint of flexibility and economy, and the mesh is preferably 120 mm or less from the viewpoint of durability and spillage of earth and sand. The material is, for example, a vinyl chloride-coated iron wire, a galvanized iron wire, a colored-painted galvanized iron wire, a hot-dip aluminum-plated iron wire, a zinc-aluminum alloy-plated iron wire, a high-strength PVC-coated special iron wire, and the like.

As the leg member 3, a metal round bar or a plate material (shape steel such as angle iron) can be used. However, the leg member 3 shown in FIG. It has become. Then, the net member 2 is attached to the L-shaped vertical side of the leg member 3 by the coil-shaped connecting member 4 so as to be rotatable, and has a width of 2000 mm and the length of the L-shaped vertical side of the leg member 3. Is 560 mm, the length of the bottom side is 350 mm, and the angle formed by the L-shape is 65 °. The leg members 3 need only be attached to at least both ends of the net member 2, but may be attached to the middle as necessary.

FIG. 2 is a side view and a front view showing a state where the leg member 3 of the slope reinforcing unit 1 of the present invention is rotated. That is, as shown in FIGS. 2A and 2B, if the leg member 3 is rotated so as to be perpendicular to the net member 2, the leg member 3 is rotated like the slope reinforcing unit 1 shown in FIG. Can be made independent on the ground surface. on the other hand,
As shown in FIGS. 2C and 2D, when the leg member 3 is turned to the net member 2 side, the leg member 3 becomes a flat plate shape, so that the transportation is easy and the storage is convenient.

FIG. 3 is a side view and a top view showing a state in which a mesh-like synthetic resin embankment reinforcing member 6 is fixed to the slope reinforcing unit 1 of the present invention. That is, FIG.
And (B), the tip of the bottom side of the leg member 3 is a folded portion 3A, and the mesh 7A of the connecting member 7 made of a grid-like welded metal mesh is inserted into the folded portion 3A, and the middle of the connecting member 7 is inserted. The mesh 6A of the embankment reinforcing member 6 is fitted over the crest portion 7B, and the connecting bar 8 is inserted and fixed. In FIGS. 3A and 3B, the connecting bars 8 are alternately skewed on the mesh 6A of the embankment reinforcing member 6; 7B. FIGS. 3C and 3D show another fixed state of the embankment reinforcing member 6.
The connection member 9 is hooked and fixed to the folded portion 9A at one end so as to correspond to the mesh 6A of the embankment reinforcing member 6 one-to-one.

Here, as the embankment reinforcing member 6, a net type sheet coated with a special synthetic resin by combining polyester yarns in a lattice shape can be used. Because the net-type sheet has a mesh structure, it is well compatible with soft ground and embankment,
Also, the upper and lower earth and sand can be mixed appropriately to exhibit a large frictional resistance. Furthermore, since it has high strength, is lightweight and has weather resistance, it can save labor and cost, and is optimal for embankment reinforcement work.

In order to form a retaining wall by using the slope reinforcing unit of the present invention, the leg members 3 of the adjacent left and right slope reinforcing units 1 are connected to each other by the binding device 10. Here, as the binding device 10, various types shown in FIGS. 4 and 5 can be used. That is, as shown in FIG. 4A, a leg member 3 is attached to a spring material (for example, a pipe clamp 3 and a piping clip 5 manufactured by Nifco Co., Ltd.) having a ω-shaped cross section.
3, a method of binding with a band as shown in FIGS. 4 (B) and 4 (C), and a pair of folded portions having an h-shaped side view as shown in FIG. 5 (A). 5 by hooking the legs 3 and 3 from both sides by hooking
A method of binding leg members from both sides with a pair of U-shaped bodies that can be fitted together as shown in FIG. 5B, and a leg between spring members having a σ-shaped cross section as shown in FIG. A method of fitting the member, a method of sandwiching the leg member with a hook-type opening / closing ring, and a plurality of opening / closing rings used for a binder of paper or the like are available. In addition, these binding devices 10 can be made of synthetic resin or metal.

In order to connect the upper and lower slope reinforcement units, as shown in FIG. 6, a folded portion 3B is provided at the tip of the vertical side of the leg member 3, and the leg member 3 is disposed above the folded portion 3B. The horizontal lattice of the net member 2A in the surface reinforcing unit 1A is inserted. At the same time, the bottom 3C of the leg member 3 in the upper slope reinforcement unit 1A is inserted into the horizontal lattice of the net member 2B in the lower slope reinforcement unit 1B. In addition,
In FIG. 6, the connecting portions 11A and 11B of the adjacent left and right slope reinforcing units are connected by a tying tool (not shown) such as that shown in FIG. 4 or FIG.

Next, the embankment reinforcing method of the present invention will be described with reference to the drawings. First, the slope reinforcement unit 1 is shown in FIG.
And (D) are transported to the construction site in the form of a plate, and after confirming the installation position, the leg member 3 is rotated as shown in FIGS. Become independent and connect the diagonal beams 5 to reinforce. As shown in FIG. 3, the bank-reinforced embankment reinforcing member 6 wound with a roll is developed and laid from a reference point on the slope, and the L-shaped bottom portion of the leg member 3 is connected via the connecting member 7 or the connecting member 9. Fixed to. Subsequently, the leg members 3 of the adjacent left and right slope reinforcing units 1 are connected to each other by the binding device 10 shown in FIG. 4 or FIG.

The earth and sand is spread inside the slope reinforcing unit 1 so that the embankment reinforcing member 6 is not turned over, and is rolled by a hand-guided vibrating roller or a vibrating compactor to finish it as flat as possible without irregularities. Then, as shown in FIG. 6, the embankment is constructed by repeatedly installing the slope reinforcing unit 1 on the finished soil and connecting the upper and lower slope reinforcing units. The left and right connecting portions 11A in the upper side slope reinforcing unit 1A are:
It is arranged in a staggered manner so as not to overlap with the connecting portion 11B in the lower stage.

[0029]

As described above, the slope-reinforcement unit of the present invention is provided with a leg member having an L-shape when viewed from the side and a net which is attached to the L-shaped vertical side of the leg member to form the slope. Since the leg member is made rotatable with respect to the net member, it can be easily made into a flat plate shape. Since it can be configured, it is easy to store and convenient to carry, so that the workability can be improved. Further, by connecting the slope reinforcement unit vertically and horizontally with a tying tool or the like, an embankment reinforcement structure capable of exhibiting an excellent embankment collapse prevention effect can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a slope reinforcing unit of the present invention.

FIG. 2 is a side view and a front view showing a state where a leg member of the slope reinforcing unit of the present invention is rotated.

FIG. 3 is a side view and a top view showing a fixed state of the slope reinforcing unit and the embankment reinforcing member of the present invention.

FIG. 4 is a perspective view showing an example of a tying tool used in the present invention.

FIG. 5 is a perspective view showing an example of a tying tool used in the present invention.

FIG. 6 is a perspective view showing a connected state of the slope reinforcing unit of the present invention.

FIG. 7 is a perspective view showing a conventional slope reinforcing unit.

[Explanation of symbols]

 1, 1A, 1B {Slope Reinforcement Unit 2, 2A, 2B} Net Member 3} Leg Member 3A, 3B {Folding Portion 3C} Bottom Side 4} Connecting Member 5} Sloping Beam Material 6} Embankment Reinforcement Member 6A Mesh 7 ‥ Connecting member 7A ‥ Net 7B ‥ Crest portion 8 ‥ Connecting bar 9 ‥ Connecting member 9A ‥ Folding portion 10 ‥ Bundling device 11A, 11B ‥ Connecting portion 21 ‥ Slope reinforcement unit 22 ‥ Bottom side

Claims (12)

[Claims] 1. A slope reinforcing unit installed on a slope of an embankment to maintain the shape of the embankment, wherein the side member is attached to an L-shaped leg member and an L-shaped vertical side of the leg member. And a net member forming a slope, wherein the leg member is rotatable with respect to the net member. 2. At least two or more of the leg members,
2. The connection reinforcement by a cross beam material.
A slope reinforcement unit according to 1. 3. A bent portion is provided at an end of an L-shaped bottom portion of the leg member, and an embankment reinforcing member made of a mesh-like synthetic resin is fixed via a connecting member inserted into the bent portion. The slope reinforcement unit according to claim 1 or 2, wherein 4. The connecting member comprises a grid-like welded wire mesh having a crest in the middle, a mesh of the embankment reinforcing member is inserted into the crest, and a connecting bar is inserted between the crest and the mesh. The slope reinforcing unit according to claim 3, wherein the embankment reinforcing member is fixed. 5. The embankment reinforcing member is fixed by inserting a mesh of the embankment reinforcing member into the folded portion, wherein the connecting member is formed of a grid-like welded wire having a folded portion at one end. The slope reinforcing unit according to claim 3, wherein 6. An embankment reinforcing structure using the slope reinforcing unit according to claim 1, wherein leg members constituting adjacent left and right slope reinforcing units are connected by a binding device. Embankment reinforcement structure characterized by the following. 7. The embankment reinforcing structure according to claim 6, wherein the tying member is a spring material having a ω-shaped cross section. 8. The embankment reinforcing structure according to claim 6, wherein the tying member is a spring material having a σ-shaped cross section. 9. The embankment reinforcing structure according to claim 6, wherein the tying member is a pair of U-shaped bodies that can be fitted to each other. 10. The binding device according to claim 6, wherein the tying member has a pair of folded portions having an h-shape in side view.
The embankment reinforcement structure described in. 11. An embankment reinforcing structure using the slope reinforcing unit according to claim 1, wherein a bent portion is provided at a tip of an L-shaped vertical side of a leg member constituting the slope reinforcing unit. An embankment reinforcement structure wherein upper and lower slope reinforcement units are connected by inserting a lower end of a net member constituting an upper slope reinforcement unit into the folded portion. 12. An embankment reinforcing method using the slope reinforcing unit according to claim 1, wherein an L-shaped leg member of the slope reinforcing unit is turned toward the net member to form a flat plate. After transporting at the installation site, the leg member is rotated so as to be perpendicular to the net member, the L-shaped bottom of the leg member stands on the ground surface, and the embankment reinforcing member is connected via the connection member At the same time, the leg members of the adjacent left and right slope reinforcement units are connected with a tying tool, and then, while the net member is used as the slope, the L-shaped bottom portion of the leg members, the connection member and the embankment reinforcement member are connected. Each is buried in the embankment, and the lower end of the net member of the upper slope reinforcement unit is inserted into the folded portion provided at the end of the L-shaped vertical side of the leg member to connect the upper and lower slope reinforcement units. In order to construct the embankment by overlapping the slope reinforcement units An embankment reinforcement method characterized by the following.