JP2001073335A - Grass restriction block on top of slope and installation method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide techniques which require no maintenance such as grass cutting for the top of a slope by protecting the nature and scenery by growing only low grass and moss without pouring concrete or laying concrete slabs on the top portion of the slope. SOLUTION: A grass-restriction block 1 which does not restrict budding or considerable growing of grass is installed on the top portion of the slope. The grass-restriction block on the top of the slope 1 is constituted with a flat- shaped concrete member 2 installed on the top of the slope and a flat plate- shaped coarse porous member 3, and both of them are formed in one united body in a state where the tip end portions are brought into contact with each other or the tip portions are located nearby or coupled with fittings 4 or mortar.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoulder weeding block and a method for installing a shoulder weeding block which eliminates the need for weeding work on the shoulder.

[0002]

2. Description of the Related Art In general, a slope portion of a road is not covered with concrete, and the soil itself is hardened or vegetated to maintain stability. This is based on the concept of environmental protection and landscape protection, which have the problem of cost and want to maintain the natural state as much as possible. However,
In such a road, grass grows up to the shoulder of the road, and sometimes protrudes to the shoulder of the road, which causes problems such as obstructing driving and hindering the driver's view. Therefore, frequent weeding work is necessary especially in summer, but the work efficiency is extremely poor because it is hindered by guardrails and the like. Also, the car runs during weeding work, which is extremely dangerous.

[0003]

In order to solve the problem, concrete is cast or a concrete plate is laid on the shoulder, but as described above, the cost is high and environmental protection and landscape protection are required. It is not preferable from a viewpoint. On the other hand, in the case of soil or vegetation, especially in summer, the grass grows thick and the above-mentioned drawbacks occur.

Therefore, the present inventor has considered a measure that does not require maintenance such as mowing of the shoulder portion, while protecting the nature and the landscape by making only low-length grass and moss grow on the shoulder portion. The present invention has been completed. Specifically, a weed control block that does not hinder germination and certain growth of the grass but hinders large growth is installed on the fore shoulder. However, even if the weeding block is simply installed on the shoulder, there is a problem such as an increase in cost if the connection with the shoulder is not successful.

[0005]

Therefore, in the present invention, a flat or substantially flat concrete member installed on a road shoulder and a flat or substantially flat concrete member installed on a slope are provided in the present invention. And a coarse-grained porous member. Both are integrally molded with their tips in contact, or
The tips were connected by metal fittings or mortar while the tips were in contact with or close to each other. Therefore, connection of the protective material between the shoulder portion and the road shoulder portion can be easily and reliably performed.
In addition, before and after this connection, by fixing the coarse-grained porous member to the slope with an anchor, the setting of the weed control block on the slope becomes more reliable.

The concrete member is in the form of a flat plate having a width and length of several tens cm to 1 m and several tens cm and a thickness of about 5 to 10 cm, or a substantially flat plate having a bulged portion or a ridge. It is a strip concrete molding. Here, the width refers to the dimension in the width direction of the road, and the length refers to the dimension in the length direction of the road. In addition, a step portion is provided on the side of the center of the road so as to bite below the pavement material. This is to eliminate a gap where weeds grow between the concrete member and the pavement material, and to ensure that the concrete member is suppressed.
On the shoulder side of the road, if necessary, an insert member for connecting the coarse-grain porous member to the metal fitting is buried, and a bulging portion for increasing the contact area with the coarse-grain porous member is provided. Further, an anchor pin insertion hole for fixing to a road surface foundation may be provided.

[0007] This concrete member is used for easily and surely performing the troublesome work of the shoulder portion when paving a road. Alternatively, the sidewalk portion may be formed by this concrete member. In this case, if the width is insufficient, a plurality of sheets may be connected. In addition, if the pedestrian block and the roadside block are integrally provided on the concrete member, the laying and formwork of these blocks are omitted, so that labor can be saved.

[0008] Like the concrete member, the coarse-grained porous member has a width and a length of several tens cm to 1 m and several tens cm, and has a thickness of 5 m.
It has a flat or approximately flat shape of about 10 to 10 cm.
It is convenient to fix the coarse-grained porous member by providing a plurality of anchor pin insertion holes for fixing to the slope. In order to broadly control the road shoulder, it is preferable to connect a plurality of coarse-grained porous members or use a wide range of coarse-grained porous members. Further, on the side facing the concrete member, a through hole may be provided for connecting the metal member to the concrete member, or a step may be provided between the concrete member and the concrete member to eliminate a gap where weeds grow. Alternatively, the concrete member and the coarse-grained porous member may be integrated at the factory stage.

[0009] This coarse-grained porous member eliminates the need for a formwork or casting work for placing concrete or the like above the slope, that is, on the shoulder, and can reinforce the slope quickly and inexpensively. In addition, the protection of the landscape by allowing only low-growth grass to grow is an effect that cannot be obtained with concrete covering.

From this viewpoint, a molded or sintered plate having continuous pores is used as the coarse-grained porous member.
The continuous pores enable the inhabitation and growth of microorganisms and other small animals, moss and plantlets, and absorb traffic noise to create a quieter environment. When the plate-like body is a molded product, pores are formed between the aggregates by, for example, partially connecting the aggregates with a resin mortar or the like. If the aggregate itself has many pores, it will have many more pores. When the plate-like body is a sintered material, for example, coarse-grained minerals or the like are heated to about the melting point to partially melt and combine in a point contact state to form pores. Or,
A coarse-grained mineral is mixed with a low-melting-point mineral or a glass powder, and the coarse-grained material is partially combined with the molten powder. When a substance having a large number of pores, for example, a coal shell or a foam of a natural mineral is used as the coarse-grained mineral, a plate-shaped body which is lightweight and has a large number of pores as a whole can be obtained.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) FIG. 1 is a sectional view showing an example of a prosthetic weeding block 1 of the present invention. This shoulder shoulder weed block 1
Connects the concrete member 2 and the coarse-grained porous member 3
It is connected and integrated. Concrete member 2
As shown in FIG. 2 (a), a rectangular shape having a length longer than the width is provided, and a step portion 21 which cuts under the pavement material is provided on the center side of the road. On the shoulder side of the road, an insert nut 22 for connecting the coarse-grained porous member 3 to the metal fitting is embedded, and a bulging portion 23 for increasing the contact area with the coarse-grained porous member 3 is provided. ing. As shown in FIG. 2B, the coarse-grained porous member 3 has the same dimensions as the concrete member 2 in plan view, and has one anchor pin insertion hole 31 at each of the four corners. Reference numeral 32 denotes a concrete member 2
It is an insert nut for connecting the metal fittings.

The connecting fitting 4 is fixed by bolts 41 and 42
The concrete member 2 and the coarse-grained porous member 3 are attached to each other to integrate them, but mortar may be injected into the joint surface to further strengthen the connection. Alternatively, the bolt 42 may be substituted by the anchor pin 5. In this case, the connection between the concrete member 2 and the coarse-grained porous member 3 is performed at the same time as the fixing of the coarse-grained porous member 3 to the slope.

The concrete member 2 may be of a normal composition, but may be one using coal hull (clinker ash) as a part of the aggregate and fly ash as a partial substitute for cement.

The coarse-grained porous member 3 of this embodiment is a sintered plate-like body having continuous pores, and a coal mineral (clinker ash) having a large number of pores as a coarse-grained mineral (aggregate) in a weight ratio. 45-80%, which is partially bonded with 20-55% by weight of a soda-lime glass and a porous crystallized glass made of hydraulic cement, and 100-500% between coarse particles.
0 μm pores are formed and at a high temperature (1000 to 1000 μm).
(1200 ° C.) to form fine pores (10 to 100 μm) in the porous crystallized glass.
Fly ash may be mixed at about 20% or less, or sodium silicate may be mixed in forming water at a rate of 2 to 3%. The micropores are continuous micropores formed by oxidizing carbon contained in the coal hull during high-temperature firing to form a high-pressure gas and ejecting the gas to the outside of the system. Therefore, the coarse-grained porous member 3 is a sintered body having continuous pores of 100 to 5000 μm between the aggregate particles and having pores of open cells in the aggregate and the binder phase. It does not hinder the germination and growth of moss and dwarf grass. However, large growth of the roots is prevented, so that the plants do not overgrow.

As a result, as shown in FIG. 3, only a few months after the installation, only the moss and low grass (LG) grow on the fore shoulder to protect the landscape, and to protect the landscape. Is full of tall plants (HG). Therefore, weeding work on the shoulder is unnecessary, and there is an effect of absorbing traffic noise. In addition, the code | symbol 6 in a figure is a road surface foundation, and the code | symbol 7 is an asphalt pavement surface.

(Embodiment 2) FIG. 4 shows another example of a shoulder weeding block. In this case, the concrete member 8 and the coarse-grained porous member 9 are separately constructed, and the two are connected and fixed by the filling mortar 10. In addition, the concrete member 8 of this example
Has a road surface-slope boundary block 81 projecting from the road shoulder end. An insertion hole 83 for the anchor pin 5 is formed in the step 82 on the road center direction side. An anchor pin insertion hole 91 is formed in the coarse-grained porous member 9, and is fixed to a road shoulder by the anchor pin 5. Reference numeral 11 denotes a filling mortar, and reference numeral 92 denotes a step. Further, in order to widen the weed control portion, two stages are installed in succession, and step portions 93 and 94 which mesh with each other are provided at a boundary portion thereof. Providing the ridge 95 at the end of the coarse-grained porous member 9 has an effect of preventing a fallen object from falling down a slope where grass grows.

The coarse-grained porous member 9 of this embodiment is a molded plate-like body, and is formed by partially connecting granular aggregates 96 with a resin mortar 97 to form pores between the aggregates. is there.
Therefore, unlike the coarse-grained porous member 3 of the above example, there are no fine holes, but there are continuous pores of several hundreds to several thousand μm between the aggregates,
It also has some degree of water retention and permeability and does not hinder the germination or growth of moss or dwarf grass. However, large growth of the roots is prevented, so that the plants do not overgrow.

[0018]

As described in detail above, the sloping weeding block of the present invention is a flat or substantially flat concrete member installed on the road shoulder and a flat plate having a continuous hole installed on the sloping portion. Alternatively, it is composed of a substantially plate-shaped coarse-grained porous member, both of which are integrally molded in a state where the tips are in contact with each other, or are connected by metal fittings or mortar in a state where the tips are in contact with or close to each other. .

Therefore, weeding work on the shoulder portion is not required, so that the maintenance cost is greatly reduced and the safety of operation is ensured. In addition, the coarse-grained porous member covering the shoulder portion allows the microporous habitat and moss and small plants to live and grow due to the continuous pores. It is effective in environmental protection and landscape protection that cannot be obtained by concrete covering, such as in the environment.

In addition, according to the present invention, the cost is lower than the case where concrete is cast or a concrete plate is laid, and the coarse-grained porous member installed on the slope and the concrete member installed on the road shoulder are integrated. The connection between the two can be reliably performed at low cost. In addition, if the sidewalk portion is formed of a concrete member, or if the sidewalk block and the shoulder block are provided integrally with the concrete member, these laying and formwork work are omitted, so that there is also an effect that labor can be saved. .

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of a prosthetic weed block of the present invention.

FIG. 2 is a perspective view showing an example of a concrete member.

FIG. 3 is a perspective view showing an example of a coarse-grained porous member.

FIG. 4 is a cross-sectional view showing another example of a shoulder weeding block.

[Description of Signs] 1 Law shoulder weeding block 2 Concrete member 21 Step 22 Insert nut 23 Swelling portion 3 Coarse-grained porous member 31 Anchor pin insertion hole 32 Insert nut 4 Connection fitting 41 Bolt 42 Bolt 5 Anchor pin 6 Road surface foundation 7 Asphalt pavement surface 8 Concrete member 81 Road surface-slope boundary block 82 Step portion 83 Anchor pin insertion hole 9 Coarse grain porous member 91 Anchor pin insertion hole 92 Step portion 93 Step portion 94 Step portion 95 Ridge 96 Aggregate 97 Resin mortar 10 Filling mortar 11 Filling mortar LG Low grass HG Tall plants

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Kazunari Nagata 1778-1, Otsu-cho, Izumo-shi, Shimane Izukon Co., Ltd. (72) Inventor Masamichi Saiki 6-3-1 Nishishinjuku, Shinjuku-ku, Tokyo (72) Inventor Norio Mihashi 6-3-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo F-term (reference) 2D051 AC08 AF03 DA11 DB03 DB15

Claims (3)

[Claims] 1. A flat or substantially flat concrete member installed on a road shoulder portion and a flat or substantially flat coarse-grained porous member installed on a slope portion, and both are metal fittings and an adhesive. Or a weed block that is connected and integrated with an adhesive mortar. 2. The method according to claim 1, wherein the coarse-grained porous member is provided with a through-hole for inserting an anchor pin. 3. A flat or substantially flat concrete member is continuously installed on a road shoulder portion, and a flat or substantially flat coarse-grained porous member is provided on a slope portion, and the upper end portion is a concrete member. The concrete member and the coarse-grained porous member that are in contact with or close to each other are connected by metal fittings or mortar, and the coarse-grained porous member is sloped before and after the connection. A method of setting a shoulder weeding block, characterized in that the block is fixed to an anchor.