JPH06319382A - Greening of surface of structure - Google Patents

Abstract

PURPOSE:To provide a process for greening the surface of a structure in high- quality at a low cost while keeping the functional stability of the structure and making the areal root, sucker, tendril, etc., sufficiently function of a ground cover plant. CONSTITUTION:A water-retaining adhesion layer 3 containing fertilizer is formed on a mortar layer 2 (a slope-protection layer) and a ground cover plant 6 is grown on the adhesion layer 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for greening a surface of a slope, a retaining wall, a building wall surface, a steel structure or the like with a ground cover.

[0002]

2. Description of the Related Art In recent years, as rapid and large-scale slopes have emerged due to, for example, large-scale development projects and mechanization of construction work, many slope protection methods have been developed and have greatly contributed to stabilization of slopes. . However, along with this, large-area concrete and mortar structures have appeared, which has a bad influence on the aesthetics and the natural environment in the vicinity.

[0003] On the contrary, because the construction method was constructed by vegetation, ignoring the stability of civil engineering so much that the aesthetics and the natural environment were prioritized, it is possible to find the slopes that are thought to have collapsed due to groundwater or weather. There are also many.

Conventionally, as a method of greening slopes, for example, a mortar layer serving as a slope protection layer is provided with an opening to form a planting pit, and shrubs or vines are planted in the planting pit. What you have done is known.

[0005]

However, in the conventional greening method using a planting stake, since an opening is provided in the mortar layer, contrary to the purpose of the closed slope protection method, rainwater from this opening is not provided. There was a problem that the invasion of the ground would accelerate the weathering of the natural ground, making it impossible to maintain stability at the time of cutting.

[0006] In addition to the above-mentioned planting stake greening methods, various slope greening methods have been proposed. However, in these methods, growth failure and leaf fall due to lack of water and nutrients are observed, and the covering speed is slow. The vegetation is poor. Further, there is a problem that a retaining wall, a building wall surface, and a structure with exposed steel frames, which are exposed to concrete, create a tasteless dry environment without naturally melting.

The present invention has been made by paying attention to the above-mentioned problems, and the slope is protected by ground cover plants (ground cover plants, ice plants, etc.) while securing the civil stability of the ground. Greening, tasteless dry retaining wall, building wall surface,
A method of greening a steel structure, etc., in which the roots, suckers, tendrils, etc. of the ground cover can fully perform their functions, and at the same time, the greening of the surface of the structure is possible at a low cost and with good quality. The task is to do.

[0008]

In order to solve the above-mentioned problems, the structure surface greening method of the present invention comprises forming an epiphytic layer containing fertilizer on the structure surface, which has water retention property, It was decided that ground cover plants would be allowed to grow on this epiphytic layer.

[0009]

According to the method for greening the surface of a structure of the present invention, a growth layer is formed on the surface of a mortar layer, a concrete layer, a steel structure or the like. Since this epiphytic layer has water retention properties and contains fertilizers, plants (ground cover plants) are formed by this epiphytic layer.
It is possible to supply the water and nutrients necessary for the growth of the plant for a long period of time. As a result, ground cover plants grow on the surface of the epiphytic layer, and the surface of structures such as slopes and building wall surfaces can be greened.

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view of a slope constructed by the greening method of the embodiment. In the figure, 1 is a ground, 2 is a mortar layer that serves as a slope protection layer,
3 is an epiphytic layer. In this case, the shelf 4 is formed in the middle of the slope, the planter 5 is arranged on the shelf 4, and the ground cover plant 6 planted on the planter 5 is adsorbed and climbed to the epiphytic layer 3. It is a thing. Incidentally, 7 is a side groove.

The growth layer 3 contains a main material, a fertilizer, a solidifying material and an additive material as its components. Examples of the respective components are given below.

The main material is the base of the epidemic layer 3, and a porous material having water absorbability and water retention is mainly used. Examples include peat, humic acid materials, zeolite, perlite, bentonite, vermiculite, charcoal powder, composts, raw wood fibers, foamed resins, sand, etc., which are used alone or in combination.

As the fertilizer, for example, nitrogen fertilizer, phosphate fertilizer, potash fertilizer, alkaline fertilizer (lime fertilizer, magnesia fertilizer,
Single fertilizers such as silicic acid fertilizers and compound fertilizers, slow-acting nitrogen fertilizers that have a slow-acting effect on fertilizer, briquette fertilizers, pile fertilizers, coated fertilizers, etc. are used. .

The solidifying material is intended to adhere the epidemic layer 3 to the mortar layer and prevent erosion of the epidemic layer 3,
For example, polyvinyl acetate, asphalt emulsion, polymer type substance, urethane resin type substance, acrylic resin type substance, epoxy resin type substance, polyethylenemin type material, polyvinyl alcohol type material, cement type substance and the like are used.

The additive is used as necessary. For example, a polymeric water retention agent (water absorption agent) such as a resin type or starch type and a foaming agent are added to improve water absorption and water retention. Further, a neutralizing agent (pH adjusting agent) is added to neutralize the alkalinity when a cement-based substance is used for the mortar layer and the solidifying material.

As the ground cover plants 6, ground cover plants (vines, vines, hederas, etc.) and ice plants (pine leaves, pine leaves, chrysanthemums, etc.) are used.

Next, an example of construction will be described. Construction area 1
1 kg of zeolite and 50 pearlite as main materials per m ^2.
Using a mixture of 0 g, 1 kg of vermiculite and 6 kg of sand, coated fertilizer 35
1 g, a mixture of 40 g of a polymer material and 1 kg of a cement material is used as a solidifying material, and 10 g of a polymer water retention agent and 50 g of a hydrogen peroxide-based foaming agent are used as additive materials, which are shown in FIG. As described above, the deposition layer 3 having a thickness of about 5 mm was formed by spraying on the mortar layer 2. The ivy layer 3 thus formed was used to grow ivy as the ground cover plant 6. As a result, the vines were adsorbed and climbed over almost the entire surface of the epiphytic layer 3 in about 2 years, and the slope was able to be greened.

As described above, in this embodiment, since the growth layer is formed on the slope protection layer, it is not necessary to process the slope protection layer. It is possible to green the slope after securing the civil stability of the ground without damaging the ground protection function of the slope protection layer.

Although the embodiment of the present invention has been described above with reference to the drawings, the specific configuration is not limited to this embodiment. For example, the slope protection layer is not limited to the mortar layer, but may be a concrete layer. It can also be applied to other civil engineering structures such as retaining walls, steel structures, and building wall surfaces. In this case, it can be applied not only to the vertical surface but also to the horizontal surface.

The components of the epiphytic layer, the mixing ratio thereof, and the thickness of the epiphytic layer are determined in consideration of the site conditions of the structure such as slopes to be constructed, and are not limited to the above-mentioned examples of construction. The point is that the epithelial layer has water retention properties and also contains fertilizer. In addition to spraying, the deposition layer may be formed by trowel coating or brush coating. or,
The above mixture may be formed into a mat in advance and the mat may be attached to the surface of the structure.

[0021]

As described above, in the method for greening the surface of the structure of the present invention, since the growth layer is formed on the surface of the structure, it is not necessary to process the structure. Therefore, the functional stability of the structure can be secured without impairing the function of the structure itself.

Since the epiphytic layer has a water-retaining property and also contains fertilizer, the epiphytic layer can supply water and nutrients necessary for the growth of the plant (ground cover plant). Roots, suckers, tendrils, etc. can fully function. Therefore, it is possible to obtain the effect that the ground cover can be grown on the surface of the epiphytic layer to make the slope green, and at the same time, it can be made inexpensive and of good quality.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a slope surface constructed by the greening method of the embodiment.

[Explanation of symbols]

 1 Ground 2 Mortar layer (slope protection layer) 3 Epiphytic layer 6 Ground cover

Claims (1)

[Claims] 1. A method for greening a surface of a structure, comprising forming an epiphytic layer having water retention property and containing fertilizer on the surface of the structure, and allowing a ground cover plant to grow on the epiphytic layer.