JP3158154B2 - Slope vegetation method using staircase wire mesh - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete slope vegetation method in which a step metal mesh is arranged on a concrete slope and vegetation base material or soil is arranged in the step metal mesh to perform vegetation.

[0002]

2. Description of the Related Art A staircase wire mesh vegetation method is known as a method of greening a concrete slope by spraying concrete onto a steep slope to reinforce the concrete slope. In this method, a stairway wire mesh formed by combining thin metal rods in a vertical and horizontal lattice and bending it in a step-like manner is prepared, and an earth retaining material such as an earth retaining sheet is attached inside the stair wire mesh in advance to form a stair unit. This is fixed to a slope by an anchor or the like, and a vegetation base material or a soil is provided to plant or sow a herb or tree.

[0003] In a method in which a stair wire mesh is not provided, a steel bar form reinforced with a reinforcing bar is arranged in a grid pattern (a square pattern) on a steep slope, and concrete is sprayed. There is also known a method of arranging vegetation base material or soil in a basin for vegetation. For example, there is a "free frame construction method (trademark)" by Construction Basic Engineering Co., Ltd. and Ise Anme Net Manufacturing Co., Ltd.

[0004]

In the above-mentioned "free frame construction method", since the construction is performed with relatively large irregularities on the steep slope, the concrete frame is considerably formed in a grid-like (mesh-like) manner. It is necessary to assemble a strong reinforcing reinforcing bar, and the reinforcing reinforcing bar must also be deformed along irregularities on the slope, so that the work is considerably complicated and involves dangerous work.

On the other hand, in the former staircase wire mesh method, since a standard staircase wire mesh can be used, the work efficiency is high and the work is relatively safe as compared with the above-mentioned "free frame method".

However, in the vegetation method using the stairway wire mesh, if the deterioration due to weathering of the slope or a small earthquake occurs repeatedly, the stairway wire mesh may be shifted sideways or slipped off.

[0007] The applicant of the present application has previously described a concrete slope vegetation method in which a reinforcing structure is incorporated into a step wire mesh in consideration of durability against earthquakes, deterioration, etc., while retaining the above-mentioned advantages of the above-described step wire mesh vegetation method. Clarified (Japanese Patent Application 8-
No. 302470) has been found to have the following problems when the reinforcing structure is incorporated. That is, in the conventional vegetation method using a stairway wire mesh, a soil retaining material formed of an earth retaining sheet or the like is arranged on the back side of the stair wire mesh in order to arrange the vegetation base material or the soil. It has been found that the material has an adverse effect such as accumulating rebound of the spraying of the concrete for constructing the reinforcing structure.

An object of the present invention is to solve the above problems.

[0009]

According to the slope vegetation method of the present invention, a stepped wire mesh is arranged on a slope, a frame member is incorporated in the stepped wire mesh, and concrete is sprayed on the frame member to form a reinforcing structure. After the concrete is sprayed on the reinforcing structure and the step wire mesh, the earth retaining material formed and supplied in a roll shape is inserted into the back side of the step wire mesh and fixed to the step wire mesh. And, furthermore, vegetation by arranging vegetation base material or soil in the space on the back side of the earth retaining material, and arranging a step wire mesh on the slope,
A frame member is incorporated into the staircase wire mesh, a reinforcing structure constructed by spraying concrete on the frame member is provided, and an earth retaining material formed in a roll shape is arranged in advance on the inner upper end of the staircase wire mesh, and then After the concrete is sprayed on the reinforcing structure and the step wire mesh, the earth retaining material is hung on the back side of the wire mesh and fixed to the step metal mesh, and further in the space behind the earth retaining material. Arranging a vegetation base material or a soil, and performing vegetation; the earth retaining material comprises an earth retaining sheet and a heat insulating material. The earth retaining sheet has a core material attached to an upper bent portion and a lower end portion. A core material is attached to the lower end portion, and the structure is supplied in the form of a roll wound around the core material, and the earth retaining material comprises an earth retaining sheet and a heat insulating material. , The earth retaining sheet has a core material at the bent portion. At the same time, the lower end core material is attached to the lower end, and furthermore, the earth retaining sheet is bent upward to form a V-shaped pocket, and the earth retaining material is water-permeable. It is composed of non-woven fabric, made of earth retaining sheet and heat insulating material,
該土fastening sheet is attached to the core in the bent portion formed at an upper end, and lower end portion core is attached to the lower portion, further, the core material in wound shape in a roll as an axis Each of the features is provided.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a concrete slope vegetation method in which a reinforcing structure is incorporated into a staircase wire mesh to which the present invention is applied will be described.

In this method, a stair wire mesh is arranged on a slope where the ground is exposed or on a concrete slope on which concrete has been sprayed, and a frame member is incorporated in a vertical direction and / or a horizontal direction. Concrete is sprayed around this frame member to construct a reinforcing structure, and a retaining material formed in a roll shape is placed inside the stair wire mesh, and after the concrete is sprayed, the retaining material is removed from the stairs. After hanging down inside the wire mesh and fixing it, vegetation is laid with vegetation base materials or soil. As will be described later, there is also a mode in which the earth retaining material is attached to the inside of the stairway wire mesh after the concrete is sprayed on the stairway wire mesh.

This will be described in more detail with reference to FIGS. First, as shown in FIG. 3, the staircase wire mesh 10 is arranged on the slope. The arrangement of the staircase wire mesh 10 shows a mode in which the reinforcing structure is constructed in a lattice or square shape, and the staircase wire mesh 10 is arranged in a state where the vertical space 21 and the horizontal space 22 are left for the frame member 20. It is an aspect. Staircase wire mesh 10
Is fixed to the slope using an anchor 11 or the like. still,
The vertical space 21 is set to about 200 mm, but is not limited to this.

When the arrangement of the step wire mesh 10 is completed, next,
The vertical frame 23 is arranged in the vertical space 21 using the frame member 20, and the horizontal frame 24 is arranged in the horizontal space 22 using the frame member 20 in a lattice shape with the deformed reinforcing bar 26 reinforced.

For example, a lock bolt 25 having a diameter of 22 mm and a length of 1000 mm is cast on a slope at a portion where the vertical frame 23 and the horizontal frame 24 intersect, and are vertically and horizontally surrounded by the lock bolt 25. Two deformed reinforcing bars 26 were arranged. The frame member 20 formed by the comb-shaped wire mesh and the assembled comb-shaped wire mesh is fixed to the deformed reinforcing bar 26, but is bound to the staircase wire mesh 10 by a binding wire at a portion where the frame member 20 is loose.

Next, concrete is sprayed from the outside onto the vertical frame 23 and the horizontal frame 24, and after the sprayed concrete is solidified, a bark is placed inside the step wire mesh 10 on which the earth retaining material 30 is disposed on the back side. A vegetation base material in which a compost system such as a compost is mixed with a tree or herbaceous plant seed is placed, or sowing of a tree or herbaceous plant or planting of a seedling is performed by cultivating a soil.

According to the method of the present invention described above, since the staircase wire mesh 10 is attached to the slope in advance, it can be fixed firmly even if the comb wire mesh as the frame member 20 is inserted. There was a gap between the comb-shaped wire mesh and the slope in places where the irregularities were large, but since it was comb-shaped and there were few horizontal wires, it was easily deformed when pushed in from above and the gap between the ground and the ground Could be eliminated. In such a case, in order to prevent the deformation of the vertical wire material of the comb-shaped wire mesh from returning to the original shape, it is preferable to bind the wire to the staircase wire mesh with a binding wire or the like.

The above is a description of a typical embodiment of a slope vegetation method in which a reinforcing structure is incorporated in a step wire mesh.
The present invention can be applied to, for example, an embodiment in which a reinforcing structure is incorporated into a staircase wire mesh without providing a vertical space 21 and / or a horizontal space 22.

In the conventional construction method, when the concrete for the reinforcement structure is sprayed, since the earth retaining material 30 is previously arranged on the back side of the step wire mesh 10, the concrete is sprayed on the frame member 20. In this case, the rebound concrete often remains on the back side of the earth retaining sheet 30, and there is a problem that the cleaning by manual operation is troublesome.

Conventionally, an earth retaining material 30 such as an earth retaining sheet.
Is generally carried out in the field work in parallel with the fixing of the step wire mesh 10 to the concrete slope. At this time, the earth retaining material 30 is applied to the back surface of the step wire mesh 10 prior to the spraying of the concrete. Since the installation will be done,
The above-mentioned disadvantages will occur. In addition, staircase wire mesh 1
Although the method of incorporating the earth retaining material 30 into the staircase wire mesh 10 in advance at the factory at the same time as the production of the staircase wire mesh 0 is performed, the use of such a staircase wire mesh 10 causes not only the rebound concrete to remain but also the work Various miscellaneous materials entered, and cleaning was often troublesome.

FIG. 1 shows an earth retaining material 30 used in the method of the present invention. As shown in FIG. 1-A, the earth retaining material 30 is composed of an earth retaining sheet 31 and a heat insulating material 32. I have. 3.5mm diameter at the bent part 33 of the retaining sheet 31
At the same time, the length of the retaining sheet 31 (corresponding to the height of the step wire mesh 10 and about 40 in the illustrated example) is attached to the core 34.
0 mm) is also fixed. The extension 35 of the retaining sheet 31 from the bent portion 33 is opened like a banner.

The retaining sheet 31 is preferably made of a woven fabric or a nonwoven fabric, but by using a nonwoven fabric which does not allow soil particles to pass through, sludge water can be treated and dewatered.

The earth retaining material 30 is, as shown in FIG.
It is wound around the core material 34 and, in the first embodiment, is fixed to the upper end of the staircase wire mesh 10 in advance, and after the concrete for the reinforcing structure is sprayed, the concrete is After the solidification of the staircase wire mesh 10, it is fixed to the back side of the wire mesh 10 in a hanging state.
After the concrete for the reinforcing structure is sprayed, the concrete is solidified and then inserted into the inside of the step wire mesh 10 through the gap, and the end of the core 34 is rotatably connected to the end of the step wire mesh 10. Fig. 1
-It can hang down as shown in A. Preferably, the end core material 36 is also arranged at the lower end, and then fixed to the staircase wire mesh 10.

The core material 34 and the end core material 36 are attached in a so-called skewered manner as shown in the figure, but the core material 34 is arranged inside the bent portion 33 of the retaining sheet 31 and the retaining sheet 31 is attached. It can also be configured to be wound and fixed with a metal wire or the like. The end core 36 attached to the lower end of the retaining sheet 31 may also be fixed with a metal wire or the like after winding a part of the end of the retaining sheet 31 around the end core 36. Good.

FIG. 2 shows the earth retaining material 3 used in the present invention.
Another embodiment is shown. In this embodiment, the lower end of the retaining sheet 31 is lifted upward, and at the same time,
An end member 37 is arranged in the bent portion of the lower end by the same member as the retaining sheet 31. Insulation material 3
2; providing an extension 35;
The arrangement of the core 34 and the end core 36 is the same as that of the embodiment shown in FIG.

However, this embodiment is different from the embodiment shown in FIG. 1 in that a vegetation base material in which a compost system such as bark compost and a tree or herbaceous plant seed are mixed on the back side of the earth retaining material 30. In contrast to the use of the soil retaining sheet 31, since the purpose is to dispose mud having a high water content (for example, 30% of bark compost is mixed with muddy water) as guest soil. Provide a difference in material, etc. That is,
For example, a water-permeable nonwoven fabric is used as the retaining sheet 31 so that only the water in the mud is released. It should be noted that an embodiment in which the same material as the material shown in FIG. 1 is used as the retaining sheet 31 and a water-permeable nonwoven fabric is interposed together with the heat insulating material 32 may be used.

As shown in FIG. 2B, the earth retaining material 30 of this embodiment is also supplied in a state where the core material 34 is wound around a shaft.

Further, the embodiment shown in FIG. 2 is not limited to application to a case where mud is arranged as guest soil. It can also be used in a mode in which a mixed material is disposed, and in such a mode, a water-impervious sheet is used in place of the earth retaining sheet 31 or in combination with the soil retaining sheet 31 so that vegetation in a place with a lot of dryness can be used. The water retention suitable for water can be secured.

[0028]

According to the method of the present invention, the following effects can be expected.

[0029] Only the staircase wire mesh is placed in advance on the concrete slope, and the earth retaining material is placed in the later process.
It is possible to respond to the situation at the site.

The staircase wire mesh and the earth retaining material are usually different in the manufacturing factory, and compared with the conventional method in which the earth retaining material is incorporated into the staircase wire mesh at the factory, the distribution cost of the staircase wire mesh and the earth retaining material is lower than that of the conventional method. Reduction is possible.

Since it is a field assembly, it is possible to make changes according to differences in the field, such as a change in mounting position and sheet quality, and it is easy to respond to a design change.

When the concrete for the reinforcing structure is sprayed, since the earth retaining material is not attached to the step wire mesh, the rebound concrete hardly adheres to the front surface of the step wire mesh, and the attached material is also easy. In comparison with the conventional construction method in which concrete is sprayed in a state where the earth retaining material is stuck to the stair wire mesh, cleaning and the like are not troublesome. When the amount of concrete rebounding and adhering to the staircase wire mesh is small, leave it without removing it, or leave a part by removing it moderately,
It can be used as a drainage channel.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of an earth retaining material used in the method of the present invention.

FIG. 2 is a perspective view showing another embodiment of the earth retaining material used in the method of the present invention.

FIG. 3 is a perspective view showing the method of the present invention.

FIG. 4 is a perspective view showing a method of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10-Stair wire mesh 11-Anchor 20-Frame member 21-Vertical space 22-Horizontal space 23-Vertical frame 24-Horizontal frame 25-Lock bolt 26-Deformed reinforcing bar 30-Earth retaining material 31-Earth retaining sheet 32-Heat insulating material 33 -Bent part 34-core material 35-extension part 36-end core material 37-end member of earth retaining material

Claims (5)

(57) [Claims] 1. A stepped wire mesh is disposed on a slope, a frame member is incorporated in the stepped wire mesh, and a reinforcing structure constructed by spraying concrete on the frame member is provided. After the spraying, the earth retaining material formed into a roll and supplied is inserted into the back side of the corrugated mesh, fixed thereto and fixed to the stair metal mesh, and further vegetated in the space on the back side of the earth retaining material. A slope vegetation method using staircase wire mesh, wherein vegetation is performed by arranging a base material or a soil. 2. A stepped wire mesh is disposed on a slope, a frame member is incorporated in the stepped wire mesh, and a reinforcing structure constructed by spraying concrete on the frame member is provided. After the earth retaining material formed in a shape is arranged, and then the concrete is sprayed on the reinforcing structure and the step wire mesh, the soil retaining material is hung on the back side of the wire mesh and the step wire mesh is dropped. And vegetation by arranging a vegetation base material or a soil in the space behind the earth retaining material, and performing vegetation. 3. An earth retaining material comprises an earth retaining sheet and a heat insulating material, wherein the earth retaining sheet has a core material attached to an upper bent portion, and a lower end core material attached to a lower end thereof. The slope vegetation method according to claim 1 or 2, wherein the core material is supplied in a form of being wound in a roll around an axis. 4. An earth retaining material comprising an earth retaining sheet and a heat insulating material, wherein the earth retaining sheet has a core material attached to a bent portion and a lower end core material attached to a lower end portion.
The slope vegetation method according to claim 1 or 2, wherein the retaining sheet is bent upward to form a V-shaped pocket. 5. The slope vegetation method according to claim 3, wherein the earth retaining material is made of a water-permeable nonwoven fabric.