JP2000257072A - Discontinuous section reinforcing member for wall face, earth retaining wall structure using it and fill reinforcing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a reinforcing member deformable according to the angle of a step section with no cutting work at a work site and to improve quality and workability by forming the reinforcing member of a net member and a frame member trimming its periphery, and rotatably connecting the intersections of the frame bodies constituting the sides of the frame member. SOLUTION: This discontinuous section reinforcing member 1 is formed of a net member 2 and frame bodies 3 constituting the sides of a frame member. Intersections of four frame bodies 3 are rotatably connected by pins 4 to form the rectangular frame member. When the frame bodies 3 of the discontinuous section reinforcing member 1 are connected to the frame bodies 3 of another discontinuous section reinforcing member 1 by hinge structures such as hinges and coil structures, the frame bodies 3 are made rotatable, and the discontinuous section reinforcing members 1 can be also made rotatable. Two rotatably connected discontinuous section reinforcing members 1 are arranged according to the corner angle and inclination angle of a slope, and these discontinuous section reinforcing members 1 are used as the slope together with wall face reinforcing members arranged at portions other than a corner section for filling soil.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a member for reinforcing a discontinuous portion of a wall surface of an embankment or the like, a retaining wall structure using the member, and a method of reinforcing an embankment. It is about reinforcement.

[0002]

2. Description of the Related Art Conventionally, sandbags, concrete frames, and the like have been used to reinforce wall surfaces in embankments and the like, but with the recent promotion of greening, it has become difficult to employ such members particularly in forming slopes. ing. 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 formed by laminating and consolidating the soil every m. A mesh-like ground reinforcing member made of synthetic resin is laid to reinforce the embankment itself. The laying area is within a certain range from the slope,
It is calculated by calculation taking into account the slip of earth and sand. At the same time, a slope reinforcer is provided to form the slope and support the earth pressure, and the embankment including the slope is reinforced by connecting the slope reinforcer and the mesh-like ground reinforcement. In addition, a mesh sheet and a vegetation sheet are disposed inside the slope reinforcing member to integrate embankment stability and greening and protection of the slope. As such a slope reinforcing member, a welding wire mesh manufactured by setting a metal round bar at a predetermined position, welding the whole in a grid shape, and generally performing plating, resin coating, and the like is used. I was

[0004]

However, in order to construct an embankment corner using only such a slope reinforcing member, it is necessary to use a wire cutter or the like at a construction site in accordance with the angle of the corner. It was necessary to cut the surface reinforcing member or use a sandbag without using the slope reinforcing member at the corner. In such a cutting of the slope reinforcing member at the construction site, it is difficult to obtain an accurate angle, and a quality problem is likely to occur. Further, the cutting work itself is poor in workability. On the other hand, if sandbags are used in the corners, the slopes will be grass-free only in those areas, and this will impair the aesthetics of other greened slopes.

[0005] Therefore, the present invention provides a method for adjusting the angle of a discontinuous portion such as an embankment corner portion without performing a cutting operation at a construction site by separately providing a discontinuous portion reinforcing member for a wall surface which did not exist before. It is an object of the present invention to provide a member for reinforcing a discontinuous portion of a wall surface which is excellent in quality and workability and can be greened, a retaining wall structure using the member, and a method of reinforcing an embankment.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its gist is that it comprises a net member and a frame member which borders the periphery of the net member. Each intersecting point between the frame members constituting the frame member is a discontinuous portion reinforcing member on the wall surface rotatably connected. And preferably, the frame of the discontinuous portion reinforcing member is rotatably connected to the frame of the other discontinuous portion reinforcing member, and the mesh member can easily deform the crossing portion of the wire, and is a wire mesh excellent in flexibility. And
For example, there is a plain woven wire mesh. Further, a frame constituting one side of the frame member of the discontinuous portion reinforcing member is rotatably connected to a frame of another discontinuous portion reinforcing member, and the other side frame is an L-shaped wall reinforcing member in side view. Preferably, a mesh-like sheet and a vegetation sheet finer than the mesh member constituting the discontinuous portion reinforcing member are disposed on the inner surface of the discontinuous portion reinforcing member. Things. Further, using the above-mentioned discontinuous portion reinforcing member, two rotatably connected discontinuous portion reinforcing members are arranged in accordance with the corner angle and the inclination angle of the slope, and other than the corner portion, a side view L This is an embankment reinforcement method in which a U-shaped wall reinforcing member is connected, and embankment is performed with the L-shaped vertical side portion of the discontinuous portion reinforcing member and the wall reinforcing member as a slope, thereby constructing a corner portion of the slope. .

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a discontinuous portion reinforcing member of a wall surface is a reinforcing member used for a wall surface of an embankment, a corner portion of a slope of an embankment, a step portion, or the like. Four or more frames constituting each side of the frame member of the discontinuous portion reinforcing member (frame member is 4
Any polygon may be used as long as it is a polygon or more, but since four are the simplest and have a wide range of application, a quadrangular frame member having four frames will be described below as an example.

Each intersection (four) of the frames of the discontinuous portion reinforcing member is rotatably connected with bolts, pins, or the like. Therefore, the frame member can be freely transformed from a rectangle (square) to a parallelogram (diamond),
It is possible to easily adjust to the inclination angle of the wall surface such as a corner portion. Further, if the frame constituting one side of the frame member of the discontinuous portion reinforcing member is rotatably connected to the frame of the other discontinuous portion reinforcing member, the connecting portion between the frames serves as a corner portion, the corner angle and It is possible to dispose it in accordance with the inclination angle, and it is possible to simultaneously reinforce both sides of the corner portion.

In the present invention, as the mesh member of the discontinuous portion reinforcing member, a welded wire mesh made of a metal round bar and formed into a lattice as a whole can be used as in the conventional case. However, when the frame member is deformed, the mesh member is naturally deformed,
It is preferable to use a net member having excellent flexibility. In other words, the wire mesh is easily deformed at the intersection of the wires and has excellent flexibility. Examples of such a material include a plain woven wire mesh and a diamond wire mesh. In addition, it is not limited to a wire net, and it is also possible to use a flame-retardant resin net.

Further, if the frame of the wall reinforcing member having an L-shape in side view is connected to a frame other than the frame connected to the other discontinuous portion reinforcing member, the entire wall surface including the corner portion is continuously connected. Can be reinforced. In this case, it is preferable to use a coil-shaped connecting member. This is because the coil-shaped connecting member can be easily inserted and the connection completed by rotating the coil across the frame members. When the embankment is formed, a mesh-like ground reinforcing member made of synthetic resin is laid to reinforce the embankment itself, but the connection between the wall surface reinforcing member and the mesh-like ground reinforcing member is also formed by a coil-like connecting member. Easy and reliable connection. If the winding pitch of the coil-shaped connecting member is made to match the mesh pitch of the mesh-like ground reinforcing member, the coil-like connecting member is attached to the L-shaped bottom of the wall reinforcing member, and the mesh-like ground reinforcing member is attached. After the fitting, the rod-shaped members can be more easily connected simply by inserting the rod-shaped members into the coil-shaped connecting members.

Further, depending on the mesh of the mesh member, it is possible to green the wall with the discontinuous portion reinforcing member itself. However, if the mesh is small, it is difficult to deform it in accordance with the discontinuous portion. There is a limit to the size. Therefore, when the mesh is large to some extent, a mesh-like mesh
By arranging vegetation sheets and vegetation sheets, greening becomes possible. That is, by arranging a mesh-like sheet and a vegetation sheet that are finer than the mesh member, stability of the ground such as embankment and greening and protection of the wall surface are integrated. It is preferable that the vegetation sheet is also provided on the inner surface of the vertical side of the wall reinforcing member having an L-shape as viewed from the side.

Next, an embankment reinforcing method using the above-described discontinuous portion reinforcing member or the like will be described. First, the L-shaped bottom portion of the wall reinforcing member is disposed on the ground surface of the development ground to make the wall reinforcing member self-supporting. However, there is no wall reinforcement near the corner. Further, a mesh-like ground reinforcing member is laid in a predetermined range for reinforcing the embankment itself, and is connected to the L-shaped bottom portion of the wall surface reinforcing member by a coil-like connecting member. Each intersection of the frame is rotatably connected to the corner portion, and the two discontinuous portion reinforcing members rotatably connected to each other are deformed according to the corner angle and the inclination angle of the slope. And place them. Here, the discontinuous portion reinforcing member has an end overlapping with the wall surface reinforcing member, and both are connected by a coil-shaped connecting member. Finally, the soil is layered approximately every 25 cm to 30 cm on the mesh-like ground reinforcement member inside the discontinuous portion reinforcement member and the wall surface reinforcement member, and the embankment is constructed by rolling with a vibrating roller or the like to form a corner. The embankment is reinforced, including. Therefore, the embankment can be reinforced within a predetermined range by repeating the arrangement of the wall surface reinforcing member and the discontinuous portion reinforcing member as necessary.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a view showing a discontinuous portion reinforcing member of the present invention. The discontinuous portion reinforcing member 1 includes a mesh member 2 and a frame 3 constituting each side of the frame member. Here, the frame member is formed by rotatably connecting the respective intersection portions of the four frame bodies 3 with the pins 4 and is formed in a rectangular shape. Also,
If the frame 3 of the discontinuous portion reinforcing member 1 is connected to the frame of another discontinuous portion reinforcing member (not shown) by a hinge structure such as a hinge and a coil structure, the frame 3 is not only rotatable but also rotatable. The discontinuous portion reinforcing members are also rotatable.

FIG. 2A is a view showing a deformation of the discontinuous portion reinforcing member 1 shown in FIG. 1, in which the pin 4 is deformed into a parallelogram around a fulcrum. 2 (B) uses two discontinuous portion reinforcing members 1 shown in FIG. 1 and separates the frame 3A of the discontinuous portion reinforcing member 1A and the frame 3B of the other discontinuous portion reinforcing member 1B. It is a figure which shows the deformation | transformation of what was rotatably connected with the hinge 5. In this case, not only can each frame member be deformed with the pin 4 as a fulcrum, but also the discontinuous portion reinforcing members 1A and 1B can be rotated with the hinge 5 as a fulcrum. In addition, three or more discontinuous portion reinforcing members can be connected.

As the mesh member 2, a plain-woven wire mesh, a rhombic wire mesh, or the like can be used. In the embodiment shown in FIG. 1, a plain-woven wire mesh is used. The wire diameter of these wire meshes is 8 mm or less, preferably 5 mm or less from the viewpoint of flexibility and economy,
For example, it is 4.0 mm or 3.2 mm. Further, the mesh of the wire mesh is preferably 120 mm or less from the viewpoint of durability and spilling of earth and sand, for example, 100 mm and 80 mm
It is. In addition, as a material, there are a vinyl chloride-coated iron wire, a galvanized iron wire, a colored painted zinc-plated 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. In the embodiment shown in FIG. 1, a galvanized iron wire is used.

FIG. 3 is a view showing a retaining wall structure in which the discontinuous portion reinforcing member 1 of the present invention is used for the embankment corner A and the stepped portion B. The wall reinforcing member 6 is connected to portions other than the discontinuous portion. And reinforce the embankment around the corner. As shown in FIG. 3, the discontinuous portion reinforcing member 1 is arranged so as to be deformed in accordance with the corner angle and the inclination angle, and is excellent not only in workability but also in aesthetic appearance.

The wall reinforcing member 6 is made of a metal round bar, a plate material (shaped steel such as angle steel), a rope-shaped member, or the like, and a mesh member similar to the discontinuous portion reinforcing member 1 is attached thereto. It becomes. However, it is preferable to use a wall reinforcing member which is attached to a metal round bar frame member as a net member and is bent in accordance with the slope angle of the slope to form an L-shape, since the wall reinforcing member is excellent in flexibility and the like. In this case, the L-shaped bottom portion needs to have a length necessary for the wall surface reinforcing member to stand on its own. A coil-shaped connecting member (not shown) is used for connecting the discontinuous portion reinforcing member 1 to the wall surface reinforcing member 6 and connecting the wall surface reinforcing members 6 to each other.

Next, an embankment reinforcing method according to the present invention will be described with reference to FIG. First, the installation position is confirmed, and the L-shaped bottom portion 6A of the wall surface reinforcing member 6 is installed independently (a state indicated by the uppermost wall surface reinforcing member 6). At this time, the reinforcing member 8 is inserted into the net member as needed. Also, a mesh sheet and a vegetation sheet 9 are arranged inside the L-shaped vertical side of the wall reinforcing member 6 to stabilize the embankment and to green the slope (the wall reinforcing member 6 installed at the lowest level). State indicated by). Subsequently, the coiled connecting member 7 is screwed and connected to the frame member of the existing wall reinforcing member 6 (only a part is shown for convenience). Further, the mesh-like ground reinforcing material 10 wound with a roll is developed and laid from the reference point of the slope, connected to the frame member of the bottom portion 6A of the wall surface reinforcing member 6 by the coil-shaped connecting member 7, and connected by the rod-shaped member 11. It is assumed that it does not come off (the state shown by the wall reinforcing member 6 installed in the middle stage). The mesh-like ground reinforcing material 10 may be a mesh-type sheet of a resin-stretched type, which is a net-type sheet coated with a special synthetic resin by combining polyester yarns in a lattice shape.

The discontinuous portion reinforcing member 1 is deformed according to the corner angle and the inclination angle of the slope, and is arranged so as to overlap with the wall surface reinforcing member 6. Then, the two are connected by the coil-shaped connecting member 7 (only a part is shown for convenience) to form a corner portion of the slope. At this time, the mesh-like sheet and the vegetation sheet 9 are also arranged on the inner surface of the discontinuous portion reinforcing member 1 (a state indicated by the discontinuous portion reinforcing member 1 installed at the lowermost stage). The earth and sand is spread inside the wall surface reinforcing member 6 and the discontinuous portion reinforcing member 1 so that the mesh-like ground reinforcing material 10 is not turned up, and is compacted by a hand-guided vibrating roller or a vibrating compactor so as to be as flat as possible. Finish. Further, the wall reinforcing member 6 and the discontinuous portion reinforcing member 1
Is repeated to build the area around the corner of the embankment.

[0020]

As described above, in the discontinuous portion reinforcing member of the present invention, since the respective intersections of the frames constituting each side of the frame member are rotatably connected to each other, the stepped portion of the ground is provided. It can be easily deformed according to, and furthermore, if the plurality of discontinuous part reinforcing members are rotatably connected, it can be deformed according to the corner angle and the inclination angle,
This eliminates the need for cutting work at the construction site, resulting in excellent quality and workability.

[Brief description of the drawings]

FIG. 1 is a front view showing a discontinuous portion reinforcing member of the present invention.

FIG. 2 is a view showing a deformed state of the discontinuous portion reinforcing member of the present invention.

FIG. 3 is a perspective view showing a retaining wall structure using the discontinuous portion reinforcing member of the present invention in an embankment corner portion and a step portion.

FIG. 4 is a perspective view showing an embankment reinforcing method using the discontinuous portion reinforcing member of the present invention.

[Explanation of symbols]

 1, 1A, 1B {discontinuous portion reinforcing member 2} net member 3, 3A, 3B {frame 4} pin 5} hinge 6} wall reinforcing member 6A {L-shaped bottom portion of wall reinforcing member 7} coil Connection member 8 Reinforcing material 9 Mesh sheet and vegetation sheet 10 Reinforcement member for mesh ground 11 Bar member A Filling corner B B Step

Claims (6)

[Claims] 1. A ground reinforcing member installed at a discontinuous portion of a wall surface, comprising a mesh member and a frame member bordering the periphery thereof, and each intersection of frame members constituting each side of the frame member. A member for reinforcing a discontinuous portion on a wall surface, the portion being rotatably connected. 2. The frame according to claim 1, wherein a frame constituting one side of the frame member of the discontinuous portion reinforcing member is rotatably connected to a frame of another discontinuous portion reinforcing member. Reinforcing member for discontinuous part of wall. 3. The reinforcing member for a discontinuous portion of a wall according to claim 1, wherein the mesh member is a wire mesh having an excellent flexibility in which a crossing portion of a wire can be easily deformed. 4. A frame constituting one side of the frame member of the discontinuous portion reinforcing member is rotatably connected to a frame of another discontinuous portion reinforcing member, and the frame constituting the other side is viewed from the side. A retaining wall structure which is connected to a frame of an L-shaped wall reinforcing member. 5. A mesh-like sheet and a vegetation sheet which are finer than a mesh member constituting the discontinuous portion reinforcing member are provided on an inner surface of the discontinuous portion reinforcing member. The retaining wall structure according to claim 4. 6. An embankment reinforcing method using the discontinuous portion reinforcing member according to claim 2, wherein the two rotatably connected discontinuous portion reinforcing members are adjusted to a corner angle and an inclination angle of a slope. In addition to the corner portions, the wall reinforcing members having an L-shape in a side view are connected except for the corner portions, and the embankment is performed while using the L-shaped vertical side portions of the discontinuous portion reinforcing members and the wall reinforcing members as slopes. The embankment reinforcement method characterized by building around the corners of the slope.