JP6491451B2 - Ground protection structure - Google Patents

Description

  The present invention relates to a weed control structure configured so that weeds do not grow from gaps or depressions formed on the ground, such as road surfaces and park squares.

  When plants such as vegetables and flowers are planted, the plants and flowers are covered with various weeds, so there is a planting method that uses the herbicidal sheet as a herbicidal measure and grows the target plant while suppressing weeds. It is put into practical use everywhere. FIG. 5 shows a case where planting is carried out using this weed-proof sheet, but a weed-proof sheet (b) is laid on the surface of the ground (I), and there are some nails (c), (c) ... The grass-proof sheet (b) is formed with cuts (d), (d)...

  The shape of the cut (d) is T-shaped, cross-shaped, O-shaped, etc., and is formed by digging up the soil from the opening formed by spreading the cuts (d), (d). The pot is seeded in the hole, and pot seedlings are planted on it. The pot seedling (f) will grow from the opening of the notch (d) onto the grass prevention sheet (b). The herbicidal sheet (b) is breathable and allows rainwater to pass through, but it suppresses evaporation of moisture from the ground and does not interfere with the growth of the pot seedling (f), but has a light shielding effect and is a weed. Can be basically prevented.

  It is possible to prevent weeds that grow in almost flat areas with a weedproof sheet (b) in this way, but weeds that grow around pillars that stand up from the ground, concrete gaps, and the boundary between concrete and asphalt. It is not easy to prevent weeds that grow in the gaps that are formed. In particular, even when the above-mentioned weedproof sheet is laid without gaps around a cylindrical or columnar column, weeds grow from the slightly remaining gaps. Specifically, weeds around utility poles and weeds around guard posts alongside roads are problematic.

  Various techniques have been developed for the herbicidal sheet. For example, “Weedproof sheet” according to Japanese Patent Application Laid-Open No. 2009-138486 has light-shielding properties, excellent weather resistance, mechanical properties, and water impermeability, and further prevents penetration of hard and sharp weed buds into a herbicidal sheet. (A) a surface layer containing inorganic particles or a synthetic resin containing inorganic particles, (b) a modified asphalt layer, (c) a base material layer, (d) a modified asphalt layer and (e ) At least 5 layers of the back surface layer including the synthetic resin or the synthetic resin containing inorganic particles are laminated in this order.

  “Weedproof sheet” according to Japanese Patent Application Laid-Open No. 2008-17749 is a thermoplastic filament nonwoven fabric having low environmental impact because it contains an aliphatic polyester as a main component and having characteristics suitable for use as a grassproof sheet. is there. That is, it is a herbicidal sheet made of a thermoplastic filament nonwoven fabric and contains a thermoplastic filament blended with aliphatic polyester and polyamide.

Thus, although various things are known regarding the structure of the weedproof sheet itself, weeds growing in the gaps in the concrete cannot be suppressed using these conventional weedproof sheets.
A “joint material” according to Japanese Patent Application Laid-Open No. 2008-280735 is a joint material that can form a folded path that can inhibit the growth of weed roots and buds as a gap path with concrete, and can suppress the growth of weeds at the joint part. It is.

  That is, it is a joint material provided in a joint portion between concrete and concrete placed in adjacent concrete placement regions, and a plate material having side surfaces extending in the longitudinal direction of the joint portion and the vertical direction of the joint portion. And a main body having a thickness corresponding to the width of the joint, and a protrusion provided on the side surface of the main body and continuing along the longitudinal direction of the side surface, the protrusion being formed on the upper end surface of the main body. A reciprocating surface that protrudes in a direction away from the side surface from the side edge and returns to the side surface is provided.

Japanese Patent Application Laid-Open No. 2006-188881 “Method for repairing gaps in roads” eliminates weeds generated in the gaps between asphalt pavement materials and concrete products, etc. generated on roads, thereby protecting cracks and destruction, and This is a method for repairing gaps on roads that can be easily, reliably and quickly constructed to prevent expansion.
Remove the weed in the gap between the concrete curb of the road and the asphalt laid on the sidewalk, remove the foreign matter clogged in the gap, fill the gap with a filler such as mortar, and the gap Is cured with a curing tape on both sides, adhesive is applied to the gaps between the tape, sprayed or sprayed to form an adhesive layer, and urethane resin is applied to the layer, sprayed or sprayed and laminated Then, a urethane resin layer is formed, and further, a coating material is applied, sprayed or sprayed onto the urethane resin layer, an anti-slip treatment is performed on the coating material as necessary, and after drying, the curing tape is removed.

“Weedproof sheet” according to JP2009-138486 “Weedproof sheet” according to JP 2008-17749 A "Joint material" according to Japanese Patent Application Laid-Open No. 2008-280735 "Repair method of gaps on road" according to Japanese Patent Application Laid-Open No. 2006-188881

As described above, various techniques for suppressing weeds generated in a gap between concrete or between a concrete and a concrete block are known.
However, the conventional technique is complicated, the construction cost is high, and a partial narrow area cannot be easily constructed. The problem to be solved by the present invention is this problem, and provides a ground weed prevention structure having a very simple structure, low construction cost, and excellent durability.

  The weedproof structure according to the present invention suppresses weeds that grow in gaps and depressions in the ground such as concrete surfaces and asphalt surfaces, and uses finely crushed rubber chips as the material, and mixes this with adhesive to the ground. Fill the gaps that are formed. The elastically deformed rubber chip is compressed and deformed and is pushed into a small gap to be filled. Here, the rubber chips are mainly used tires which are finely pulverized, and the size is not particularly limited.

  However, it is preferable that the size (particle size) of the rubber chip is relatively small so that it can be filled in the gaps and depressions generated on the ground, but rubber chips of various sizes are used in combination instead of the same size. The rubber chips filled in the gaps and depressions are solidified by the mixed adhesive and integrated with the ground, and do not protrude from the filled gaps. In the present invention, the gap is not only filled with the rubber chip, but also the ground is covered to form a surface layer having a constant thickness. In this case, in order to improve adhesion to the ground, a surface treatment agent (primer) may be applied to the ground to form a surface layer.

The ground weed control structure according to the present invention uses fine rubber chips as a material, and an adhesive is mixed with the rubber chips to fill gaps or depressions formed on the ground such as concrete. Rubber chips are made by pulverizing used tires that are discarded in large quantities, and the cost of the rubber chips used as a material is very low.
Since the rubber chip is elastic, it can be pushed into even a slight gap generated on the ground, and the filled rubber chip is solidified by an adhesive without leaving a small gap and is integrated with the ground.

Furthermore, the weedproof structure of the present invention can almost completely suppress the generation of weeds by forming a surface layer covering not only the rubber chips in the gaps but also covering the ground. And even if the gap between the ground contracts due to changes in temperature, the rubber chip contracts at the same time, and even when exposed to wind and rain, it does not deteriorate and has excellent durability.
On the other hand, according to the present invention, rubber chips are filled in gaps, and gaps and depressions generated in places such as roads and other concrete and asphalt surfaces can be easily constructed. That is, when a gap or a concave depression is generated in a partial area of the road instead of a wide area, the gap or depression can be easily filled each time.

When weeds grow from the gap between the roadside and sidewalk. When a rubber chip is filled in the gap between the roadside and sidewalk to prevent weeds from growing. When we put garbage chips in the gap around the pole that stands on the side of the sidewalk to prevent weeds from growing. The AA cross-sectional enlarged view of FIG. Conventional general grass-proof structure with a grass-proof sheet.

  FIG. 1 shows a case where gaps 3 and 4 are generated in the boundary region between the roadway 1 and the sidewalk 2 and weeds 5, 5. Concrete blocks 6, 6... Are arranged between the roadway 1 and the sidewalk 2, and the sidewalk 2 is one step higher than the roadway 1. The roadway 1 and the sidewalk 2 are made of concrete or asphalt, and there is no gap immediately after the construction, but gaps 3 and 4 are formed by partial peeling as the years progress. Then, weeds 5, 5...

  In the present invention, the gaps 3 and 4 generated on the roadway 1 and the sidewalk 2 can be filled so that these weeds 5, 5. Further, the grown weeds 5, 5... Can be removed to fill the gaps 3 and 4 so that the weeds 5, 5. By the way, in the present invention, a rubber chip is used, and an adhesive is mixed with the rubber chip to fill the gaps 3 and 4.

  Rubber chips use old tires that are discarded in large quantities, and the old tires can be finely pulverized by a pulverizer. The specific size of the rubber chip is not particularly limited, but generally a rubber chip having a particle size of 1 mm to 5 mm is used, but not all of a constant size (particle size), a rubber chip having a size of 1 mm, A rubber chip having a size of 2 mm, a rubber chip having a size of 3 mm, and a rubber chip having a size of 5 mm are mixed and used at an appropriate ratio.

  The shape of the crushed rubber chip is not a sphere but a polyhedron, and the outer dimensions are 1 mm to 5 mm. In order to fill the gaps 3 and 4 formed on the roadway 1 and the sidewalk 2, it is possible to efficiently and slightly mix a small rubber chip of about 1 mm and a relatively large rubber chip of about 4 mm to 5 mm at an appropriate ratio. It can be filled without leaving a gap.

  The gaps 3 and 4 are filled with rubber chips. The rubber chips are mixed with an adhesive and embedded, and with time, they harden and become integrated with concrete or asphalt. FIG. 2 shows a case where the weeds 5, 5... Shown in FIG. 1 are removed and the gaps 3 and 4 formed on the roadway 1 and the sidewalk 2 are filled with rubber chips 7. Here, the specific kind of the adhesive is not limited.

  FIG. 3 shows a case in which a pole 8 for attaching a sign board to the side of the road is erected. Concrete 9 is placed around the pole 8 in order to erect the pole 8. The pole 8 stands near the concrete block of the sidewalk 2, and a gap is generated at the boundary between the concrete 9 and the sidewalk 2, and weeds 5, 5,. Therefore, as shown in the figure, a rubber chip is filled in the gap formed around the concrete where the pole 8 stands.

  FIG. 4 shows an AA cross-sectional enlarged view of FIG. 3, but the weedproof structure according to the present invention has only the filling portion 13 configured by filling the rubber chip 11 with the gap 10 formed around the concrete 9. Instead, the surface layer 12 is formed on the surface 14 of the sidewalk 2. Therefore, the weedproof structure has the filling portion 13 and the surface layer 12, and the cross-sectional shape is substantially T-shaped. As shown in the figure, a substantially T-shaped cross section with the surface layer 12 formed is more suitable for weed control, but there may be a general I-shaped cross section without the surface layer 12.

In the filling portion 13, the elastic rubber chip 11 is pushed into the gap 10 and the surface layer 12 is formed on the surface 14, so that the weeds 5 cannot grow on the surface 14. That is, the rubber chip 11 is compressed and pushed into the gap 10 and there is no room for the weed 5 to be generated. However, even if the weed 5 is generated, the surface 14 is covered with the surface layer 12 so that the weed 5 Cannot occur on the surface 14.
On the other hand, shallow depressions are formed on the road surface instead of deep grooves, and weeds are often generated from these depressions. Even in the case of such a relatively shallow depression, weed generation can be suppressed by filling the rubber chip 11.

1 Roadway 2 Sidewalk 3 Gap 4 Gap 5 Weed 6 Concrete Block 7 Rubber Chip 8 Pole 9 Concrete
10 Clearance
11 Rubber tip
12 Surface layer
13 Filling part
14 Surface

Claims (2)

In a weed control structure that prevents weeds from growing on gaps and dents on the surface of roads, etc., the gaps and dents are finely crushed and mixed with polyhedron rubber chips of different sizes, filled with adhesive, elastically deformed The above-mentioned rubber chip is compressed and deformed and pushed in without a gap to form a filling portion, a grass-proof structure on the ground. The grass-proof structure of the ground according to claim 1, wherein the rubber chips have a size of 1 mm to 5 mm, and rubber chips having different sizes are mixed.

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