JPH10183628A - Greening method for soilless sloped wall surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve perfect greening by laying growing base material surrounding bodies, each loaded with growing base material inside a tubular body having many vent holes on peripheral surface on a soilless sloped surface. SOLUTION: A growing base material surrounding body 1 loaded with a growing base material 2 containing seeds is laid on the surfaces of mortar concrete sprayed surface or soilless sloped surface such as rocks and fixed with anchor pin 3. Next, the surrounding body 1 is made of a net tubular body having many vent holes on the wall surface comprising wire-netting, expanded metal, a synthetic resin or porous tubular body made by intertwined fiber. Next, a mesh net made of a water soluble resin is wound round the surface of the surrounding body 1 so as to prevent the leakage of the base material 2 from the surrounding body 1 during transport and construction work. Also, a resin foamed body is used as the base material 2, and fixing bands are wound round the surroundings of the surrounding bodies 1 for fixation instead of using anchor pins 3. By doing this, all the soilless sloped surfaces can be greened and flow-away and collapses of the growing base materials can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope with mortar and concrete spraying, a concrete surface of an artificial structure such as a retaining wall, a pier or a box culvert, and a soilless slope surface without a growth base such as a rock slope. And a method for greening.

[0002]

2. Description of the Related Art Hitherto, many greening methods have been proposed for cut, embankment slopes, ground slopes and the like, and the results have been obtained. Specifically, currently used greening methods include vegetation matting, upholstering, vegetation bracing, framing, seed dispersal, and seed dispersal. In most cases, greening is performed on the surface.

In recent years, greening has been proposed for rock slopes in view of environmental protection requirements. This method is called the rock greening method, in which cement or a synthetic resin-based bonding material is mixed into the growth base material to enhance the anchoring force on the rock surface, and the mixed material is sprayed with a mortar spray gun. Is sprayed on the rock surface by compressed air.

[0004]

As described above, although a greening method for soilless slopes such as bedrock has been proposed in some parts, usually, when the ground is bedrock, it is usually used from the beginning. Because greening was impossible, the slope was often protected by mortar / concrete spraying or rock net construction, leaving the rock ground bare.

[0005] In addition, even in the case of the above-mentioned rock greening method, the breeding base has such a hardness that the breeding base material does not run down due to rainfall or flowing water even on a steep slope, or the breeding base itself does not collapse or collapse. On the other hand, on the other hand, it is necessary to have at least softness enough for the plant to grow.
In order to satisfy these conditions, it is necessary to make a base having a thickness of about 10 to 20 cm. However, there is a limit to the thickness of the base layer that can be created, especially in steep places.
Maintaining a base layer of 0 to 20 cm for a long period of time is often caused by rainfall or running water due to insufficient fixation of the surface layer, or the growth base itself collapses and collapses,
It was difficult.

On the other hand, retaining walls / piers, box culverts,
In buildings and other structures, the idea of greening exposed concrete surfaces has not existed in the past, and in most cases, concrete has been left bare, but due to the growing interest in environmental conservation in recent years. The demand for greening of these artificial structures is also increasing.

Therefore, the main object of the present invention is to provide a mortar
It can green all concrete slopes, concrete walls of artificial structures such as retaining walls, piers, box culverts, etc., and all soilless slopes such as rock slopes. It is an object of the present invention to provide a greening method that does not cause any greening.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a method for greening a soilless slope wall having no growth base, comprising a cylindrical member having a large number of through holes on a peripheral surface. A growth base material surrounding body filled with a growth base material inside the body is laid and fixed to the soilless slope wall.

In this case, the tubular body may be, for example, a mesh tubular body made of a wire mesh, a crimp wire mesh, a welded wire mesh, expanded metal or the like, a mesh tubular body made of a synthetic resin,
A porous tubular body or the like formed by fiber entanglement can be used. As the growth base material, a soil is usually used, but in some cases, a resin foam such as urethane or styrene can be used.

[0010] A mesh net made of a soluble resin may be wound around the outer surface of the cylindrical body. The mesh net prevents the growth base material filled therein from falling down until the laying operation of the growth base material surrounding body, and dissolves and disappears at the time of germination, so that growth is not hindered.

Various methods are conceivable for fixing the growth base material surrounding body. A fixing band is wound around the growth base material surrounding body, and both ends of the fixing band are fixed with soilless slopes by means of fixing tools. It is preferable to fix on a wall surface.

In the case of the present invention, the greening is performed by laying and surrounding the growing base material surrounding body on a soilless slope wall, so that the applicable surface is not limited. It can green all slopes such as mortar and concrete spray slopes, concrete walls of artificial structures such as retaining walls, piers and box culverts, and rock slopes.

Further, since the growth base material filled by the mesh tubular body is held, the growth base material does not run off due to rainfall or flowing water, and does not collapse or collapse.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a vertical cross-sectional view when the greening method of the present invention is applied to a soilless slope.
With a soil-less slope S such as a mortar / concrete spraying surface or a bedrock surface as an object for greening, a mesh pipe-shaped growth base material surrounding body 1, 1 ... filled with a growth base material 2 on which seeds are scattered.
(Hereinafter referred to as soil surrounding body) is fixed to the soilless slope S while being laid on the surface.

As shown in FIG. 2, the soil surrounding body 1 is made of a pipe-like material having a large number of through holes in a wall surface, such as a wire mesh, crimp wire mesh, welded wire mesh, expanded metal, or the like. As shown in FIG. 3 and FIG. 4, those molded into a mesh pipe using a relatively high-strength synthetic resin such as polypropylene, polyethylene, polyester, polyamide, and polyvinyl chloride. A porous tubular body 7 formed by entanglement of fibers can be suitably used. In any case, a material that can hold the filled growth base material 2 so as not to run off in the future and has a large number of through holes on the surface so that seeds can germinate and grow is used. Further, in order to prevent the growing base material 2 filled between the transportation and the laying from falling down, a fine mesh net formed by a water-soluble resin such as polyvinyl alcohol, methylcellulose, carboxymethylcellulose or the like is provided on the surface. You can also roll.
When the seeds germinate, the mesh net disappears and does not hinder plant growth.

The cross-sectional shape of the soil surrounding body 1 is not limited to a circular cross-section, but may be a square. For example, the cross-sectional shape is arbitrary, such as a square soil surrounding body 1A shown in FIG. 5, a rectangular soil surrounding body 1B shown in FIG. 6, and a trapezoidal soil surrounding body 1C shown in FIG.

On the other hand, as the growth base material 2, it is needless to say that a base material that satisfies basic conditions such as maintaining sufficient moisture for germination and appropriately supplying oxygen into the soil is used. However, in order to prevent the growth base material 2 from flowing out of the mesh of the soil surrounding body 1 and to alleviate evaporation of soil moisture, prevent drying of the surface, and retain water, erosion of asphalt emulsion, polyvinyl acetate resin, etc. It is desirable to use one mixed with an inhibitor. Alternatively, it is also possible to use a breeding base material mainly composed of vegetable fibers, for example, a staple fiber such as peat moss and bark compost, or a breeding base material using rock wool, which is an inorganic fiber. This is preferable from the viewpoint of prevention. Further, as the growth base material 2, a resin foam such as urethane or styrene can be used in addition to the soil. In this case, although there is an advantage that it does not run off due to rainwater or running water, it is necessary to replenish nutrients necessary for growing plants in a timely manner.

On the other hand, the seeds can be mixed into the growing base material 2 in advance as described above, or can be scattered or embedded after the laying of the soil surrounding body 1 is completed.

When laying the soil surrounding bodies 1, 1,... Filled with the growing base material 2 on the soilless sloped wall S, the soil surrounding bodies 1, 1,. To As a fixing method, various methods can be considered. As shown in the example of FIG. 1, the concrete or the rock surface can be fixed by anchor pins 3, 3,..., Or as shown in FIG. For example, a stainless steel band having a width of 20 to 50 mm is formed into a U-shape, and a fixing band 4 having fixing flanges 4a formed at both ends thereof is prepared, and the fixing band 4 is applied around the soil surrounding body 1 at both ends. May be fixed to the soilless slope S by the concrete anchor bolts 5, 5. Further, in the case where the fixing method can be simplified under conditions such as a slight slope slope, as shown in FIG. 9, after the soil surrounding bodies 1 are stacked in the height direction of the slope, a plurality of Can also be fixed together by the fixing band 6.

On the other hand, FIG. 1 shows an example in which the soil surrounding bodies 1, 1,... Are laid in a horizontal arrangement so as to be stacked in the height direction of the slope, but the orientation direction is not limited at all. For example, as shown in FIG. 10, the soil surrounding bodies 1, 1,... May be oriented in the height direction of the slope, and may be laid in parallel in the horizontal direction.

The applicable range of the greening method of the present invention is not limited to a slope having a slope.

As shown in FIG. 11, the vertical concrete exposed surface 10a of the retaining wall 10 can be greened. The example of FIG. 1 shows a vertically surrounding soil surrounding body 1, 1, with respect to a vertical concrete surface 10 a of a retaining wall 10.
Are fixed while being arranged in parallel, but of course, they can be stacked and arranged with the orientation direction being horizontal. It will be apparent from the example of the figure that the present invention can be applied to concrete walls of any artificial structures such as retaining walls, piers, box culverts, and the like.

In the construction of the above-mentioned greening structure, before the greening work, the growth base material 2 is filled into the soil surrounding body 1 at a construction site or another yard, and this is filled up to the construction site. It is carried in by truck transportation, and it is constructed by using a heavy lifting machine such as a truck crane and laying it side by side on a soilless slope S such as a mortar / concrete spraying surface or a bedrock surface or a concrete wall surface 10a. Desirable in terms of efficiency.

[0024]

As described in detail above, according to the present invention, any soilless surface such as a mortar / concrete spray slope, a concrete wall of an artificial structure such as a retaining wall, a pier or a box culvert, or a rock slope. The sloped wall can be greened, and the breeding base material can be prevented from running off or collapsing.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a case where a greening method of the present invention is applied to a soilless slope.

FIG. 2 is a partial perspective view of a soil surrounding body.

FIG. 3 is a side view of a main part of a porous tubular body formed by fiber entanglement.

FIG. 4 is a view taken along the line IV-IV in FIG. 3;

FIG. 5 is a view showing another example of the cross-sectional shape of the soil surrounding body.

FIG. 6 is a view showing another example of the cross-sectional shape of the soil surrounding body.

FIG. 7 is a view showing another example of the cross-sectional shape of the soil surrounding body.

FIG. 8 is a diagram illustrating an example of a method of fixing another soil surrounding body.

FIG. 9 is a diagram illustrating an example of a method of fixing another soil surrounding body.

FIG. 10 is a longitudinal sectional view when the soil surrounding body is arranged vertically.

FIG. 11 is a longitudinal sectional view when the greening method of the present invention is applied to a retaining wall surface.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Surrounding body for soil (surrounding body for growing base material), 2 ... Growing base material, 3 ... anchor pin, 4.6 fixed band, 5 ... anchor bolt for concrete, 7 ... porous tubular body

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Naota Itoyama 2-16-2 Minami Kamata, Ota-ku, Tokyo Tone Underground Engineering Co., Ltd.

Claims (5)

[Claims] 1. A method for greening a non-soil slope without a growth base, comprising: a growth base material surrounding body in which a growth base material is filled in a cylindrical body having a large number of through holes on a peripheral surface. Is laid and fixed to the soil-less sloped wall surface. 2. The tubular body is a mesh tubular body made of a wire mesh, a crimp wire mesh, a welded wire mesh, an expanded metal, a mesh tubular body made of a synthetic resin, or a porous tubular body made of fiber entanglement. The method for greening the soilless slope as described in the above. 3. The method according to claim 1, wherein the growing base material is a resin foam. 4. The method for greening a sloped wall without soil according to claim 1, wherein a mesh net made of a soluble resin is wound around the outer surface of the cylindrical body. 5. The fixing of the growing base material surrounding body, wherein a fixing band is wound around the growing base material surrounding body, and both ends of the fixing band are fixed to the soilless slope wall by a fixing tool. 4. The method for greening a sloped wall without soil according to 4.