JPH0432042Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a turf structure useful as a reinforcing layer for, for example, a slope of the ground.

[Conventional technology]

In order to prevent landslides on the slope of the ground, the slope is reinforced by covering it with a concrete layer or steel mesh. When reinforcing with steel netting, grass is further grown to strengthen the ground with its roots and to make it visually appealing. However, if the concrete layer is used to strengthen the structure, grass will not grow and there will be problems in terms of appearance.

Conventionally, a mixture of peat moss, organic fiber pieces, gravel, water retention agent, glue, and water was filled and solidified in a reinforcing frame, and a slow-release solid fertilizer was buried inside the water retention bed block, which was then planted with vegetation. A structure is adopted in which the block is fixed to the slope of the ground with an anchor (Utility Model Application No. 59-23946).

[Problems to be solved by the invention] However, the conventional structure described above requires a reinforcing frame, and it takes time and effort to manufacture the vegetation block. Another problem is that the vegetation blocks are heavy and if they are piled up on a slope, there is a risk of them slipping down before they can be secured with anchors. If an anchor is provided on the slope in advance and the anchor is inserted into an insertion hole provided in the vegetation block, the vegetation blocks are stacked and fixed with the anchor at the same time. The alignment of the insertion hole and the anchor is extremely troublesome and requires almost unrealistic effort.

[Means for solving problems]

The purpose of this invention is to solve the above-mentioned conventional problems and make it possible to grow grass on the concrete layer. The main feature is that it consists of a steel net inserted into the layer, an anchor buried across the ground of the foamed concrete layer and engaged with the steel net, and grass grown on the surface of the foamed concrete layer. It is something to do.

[Effect]

Since the foamed concrete layer 3 is lightweight and has a rough outer surface, the adhesive mortar layer 2 bites into the outer surface of the foamed concrete layer 3, and the foamed concrete layer 3 is firmly fixed by the adhesive mortar layer 2 even on the sloped ground surface 1A. be done. Furthermore, since the foamed concrete layer 3 is reinforced with a steel net 4,
Cracking and splitting of foamed concrete layer 3 is prevented,
Moreover, even if cracks or cracks occur, the entire foamed concrete layer 3 is prevented from collapsing. When further fixed with an anchor 5, the steel net 4 is fixed with the anchor 5.
The foamed concrete layer 3 is completely prevented from sliding down.

Therefore, in the configuration of the present invention, if the foamed concrete layer 3 is firmly fixed to the slope ground surface 1A by the adhesive mortar layer 2 even before fixing with the anchors 5, the foamed concrete layer 3 can be prevented from slipping during the fixing work with the anchors 5. The danger is almost eliminated.

Since the foamed concrete layer 3 has a permeable water-holding property, the roots of the grass 6 can propagate smoothly within the layer, and as described above, the foamed concrete layer 3
Since it is reinforced by the steel net 4, damage caused by the root pressure of the grass 6 is reliably prevented.

〔Example〕

The present invention will be explained in detail below using an embodiment shown in FIG. In the figure, reference numeral 1 indicates a ground having a sloped ground surface 1A, and an ALC layer 3, which is a foamed concrete layer, is first coated on the sloped ground surface 1A via an adhesive mortar layer 2. The ALC layer 3
Fibers such as peat moss or wood powder, water-absorbing polymers, fertilizers, etc. may be mixed into the seed bed. In this case, since the ALC layer 3 is lightweight and has a rough outer surface, the adhesive mortar layer 2 is attached to the ALC layer 3.
The ALC layer 3 is firmly fixed to the inclined ground surface 1A by the adhesive mortar layer 2. A steel net 4 is inserted into the ALC layer 3, and an anchor 5 is buried between the ALC layer 3 and the ground 1. The anchors 5 penetrate through the mesh of the steel net 4 and engage with the steel net 4, completely preventing the ALC layer 3, which is the foamed concrete layer, from sliding down.
The steel mesh 4 may be heated by electrical current if desired. In that case, the handle 5A of the anchor 5 is made of an insulating material such as plastic or ceramic. The ALC
Grass 6 is grown on the surface of layer 3. To grow grass 6 on the surface of ALC layer 3, adhesives such as vinyl acetate emulsion, acrylic resin emulsion, styrene-butadiene rubber latex, sodium polyacrylate, polyvinyl alcohol, and carboxymethyl cellulose are mixed with grass seeds. It is common practice to spray a mixture prepared by adding fertilizer or the like onto the surface of the ALC layer 3, if desired. The grass 6 planted in this manner grows by propagating roots within the air bubbles within the ALC layer 3. At this time, destruction of the ALC layer 3 due to the root pressure of the grass 6 is prevented by the steel net 4.

Other than the above-mentioned examples, the foamed concrete layer used for the lawn of the present invention may be foamed concrete made by adding a foaming agent to cement slurry in addition to ALC, injected into a mold frame, and foamed and hardened. This includes foamed concrete, which is made by foaming cement slurry, pouring it into molds, and hardening it. When a foamed concrete layer like the ALC layer in this example is used as a slope ground surface reinforcement layer, freezing in the vicinity of the slope ground surface 1A of the ground 1 is prevented due to the heat retention by air bubbles, and furthermore, the shear force due to its own weight is small due to its light weight. In addition, as mentioned above, since the outer surface of the foamed concrete layer is rough, the adhesive mortar layer 2 digs into the back surface of the foamed concrete layer, and even before fixing with the anchors 5, the sloped ground surface 1A
Since it is difficult to slip down from the anchor 5, fixing work using the anchor 5 can be performed extremely safely.

[Effect of idea]

As described above, in the present invention, the sloped ground surface is covered with a foamed concrete layer covered with grass, which strengthens the ground and provides a favorable appearance. Since the foamed concrete layer has breathable and water-retaining properties, grass can grow smoothly. Furthermore, since the foamed concrete layer is lightweight and has a rough outer surface, the foamed concrete layer is firmly fixed to the sloped ground surface by the adhesive mortar layer even before fixing with anchors, making anchoring work easy even for large foamed concrete layers. can proceed safely and smoothly. Furthermore, since the foamed concrete layer is reinforced with a steel net, there is no risk of it being destroyed by the root pressure of grass, etc., and the anchors engage with the steel net to securely fix the foamed concrete layer. It is possible.

In this way, the present invention makes it easy to efficiently manufacture large-scale lawns, and greatly streamlines the work to strengthen sloped ground surfaces.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an embodiment of the present invention. In the figure, 1...ALC layer, 4...steel mesh, 6...
Turf.

Claims (1)

[Scope of utility model registration request] A foamed concrete layer that is coated on a sloped ground surface via an adhesive mortar layer, a steel mesh that is inserted into the foamed concrete layer, and is buried across the ground of the foamed concrete layer and engages with the steel mesh. A lawn structure comprising an anchor and grass grown on the surface of the foamed concrete layer.