JP5004369B2 - Masonry greening method - Google Patents

Description

  The present invention relates to a construction method for greening a masonry body.

  Traditionally, there are places on the river quay where masonry bodies are constructed to prevent the outflow of topsoil. In stone masonry, plants may be vegetated from the soil deposited in the gap between stones after construction, but the soil will flow out due to increased river water or heavy rain, and plants other than moss will settle. It was difficult. Patent Documents 1 and 2 disclose a technique for greening this masonry to restore a natural landscape.

  In the technique described in Patent Document 1, plant seeds and soil are accommodated in a mesh-like vegetation bag having flexibility and water permeability, and the rear end of the vegetation bag is not exposed from the wall surface of the masonry body. It is characterized by being placed between stones so that the part reaches the backside chestnut stone. According to this technology, the germinated plant grows from the tip of the vegetation bag and grows from the gap between the stones, and the root extends from the rear end of the vegetation bag toward the backside chestnut stone and the ground. I was able to grow.

  The technique described in Patent Document 2 is characterized in that a water-retaining agent, seeds and fertilizer are added to peat to form a greening mat, and the greening mat is coated on the surface of a masonry body and fixed to the stone with metal fittings. . According to this technology, because the greening mat is rich in flexibility, it can be flexibly adapted to the unevenness of the masonry body and the mounting state is stable, and since it covers the entire surface of the masonry body, it can be greened uniformly over a wide range. Is.

  By the way, since the technique of patent document 1 is a construction method which performs the pile of stones and arrangement | positioning of a vegetation bag in parallel, it arrange | positions a vegetation bag in the clearance gap between a stone and a stone after piled up stone first. It was difficult, and it was necessary to reload the stones when building the built masonry, which involved labor and labor.

  In the technique described in Patent Document 2, since the greening mat is only coated on the surface of the masonry body, when the fertilizer is depleted, the plants become poorly grown and the water retention is insufficient. Moreover, the greening mat collapsed due to increased river water, heavy rain, etc., and it was easy for it to flow out, and it was difficult to stabilize the plant stably.

JP 7-48823 A Japanese Patent Laid-Open No. 9-21135

  The problem to be solved by the present invention is to solve these conventional problems, so that a built-up masonry can be greened without re-laying stones, and the plant can grow well and stably settle. There is to do.

The configuration of the present invention that solves this problem is as follows.
1) Revegetation method in a masonry body constructed by stacking stones on the side of the ground and filling the backside chestnut stone between the stones and the ground, and depositing soil or composted plant waste materials or a mixed base A vegetation base material is prepared by kneading wood, fiber pieces, solidified material solidified by a hydration reaction, plant seeds, fertilizer, and water. Press into the layer and fill the gap between the stones, solidify the solidified material in the vegetation base, connect the base material and fiber pieces in a three-dimensional network, and germinate the seeds in the vegetation base The greening method of masonry, characterized by extending from the gap between stones 2) The mixing ratio of base material, fiber pieces, solidification material, seeds, fertilizer and water is 1000L of base material 10 to 20 kg of fiber pieces, 20 to 40 kg of solidified material, 2 seeds 0～500G, fertilizer is 5～15Kg, water 0.2 to 0.3 m ^3, the 1) greening method 3 masonry body according) masonry body constitutes a bank of the river, the It is in the greening method for masonry as described in 1) or 2).

  According to the present invention, the vegetation base material is pressed into the back-filled chestnut from the gap between the stones and further filled into the gap between the stones. After the vegetation base material has been pressed, the solidified material solidifies by a hydration reaction after a predetermined time has elapsed, and the base material and fiber pieces are connected in a three-dimensional network to form a large number of fine voids. It firmly adheres to the backside chestnut stone. Thereafter, the seeds in the vegetation base material germinate, the plant grows and grows from the gap between the stones, and the masonry is greened.

  Thus, since the vegetation base material is press-fitted from the gap between the stones, even a built masonry body can be greened without re-loading the stones. In addition, the fine voids formed in the vegetation base material improve water retention and also form an air layer, so that the plant grows well. Furthermore, because the solidified material solidifies the vegetation base material to the stone and the back-filled chestnut, even if it is subjected to physical action such as river flooding or heavy rain, it can easily collapse and flow out as in the prior art. The plant can be stably established.

It is explanatory drawing which shows the press injection of the vegetation base material of an Example. It is explanatory drawing which shows the greening state of the masonry body of an Example.

The base material of the present invention is a main raw material of the vegetation base material, and is composed of sedimentary soil, composted plant waste material, or a mixture thereof. As sedimentary soils, those generated in dam lakes, regulating ponds, reservoirs, water treatment plants, etc., and soils generated in construction sites, etc. are effectively used. As plant waste, wood chips such as bark, branches and roots generated during construction work and road construction are used. The blending ratio is practically in the range of 8000 to 10,000 L per 100 m ^{2 of} construction area.

Fiber pieces are used to form a soil with a lot of fine voids by making the vegetation base material bulky and solidifying the base material and fiber pieces after solidification. It consists of cellulose and other cellulose as the main component. The blending ratio is practically 100 to 200 kg per 10 m ^{2 of} construction area (10 to 20 kg for the base material 1000L volume). Water retention may be reduced.

Solidification material reacts with water and soil to form a chain-like bundle with semi-permanent solidification ability, and penetrates into the base material and fiber pieces to firmly stabilize the vegetation base material. It consists of lime-based, gypsum-based, and alum-based materials with alumina and silica added to it. The blending ratio is practically 250 to 350 kg ( ^{20 to} 40 kg for the base material 1000 L volume) per 100 m ^{2 of the} construction area, but is increased or decreased depending on the working time and the construction area.

The fertilizer is mainly slow-acting, and the blending ratio is practically 60 to 90 kg per 100 m ² construction area (5 to 15 kg for the base material 1000 L volume). It is determined appropriately according to the weather etc. The amount of water is such that it can be easily pressed into the back-filled chestnut layer and does not easily flow out from the gap between the stones before solidification, and the amount of water is 0.2-0. 3m ³ is practical.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be specifically described based on examples and drawings.

  The embodiment shown in FIGS. 1 and 2 is an example in which a masonry body built on a river quay is greened by the greening method of the present invention. FIG. 1 is an explanatory view showing the press-fitting of the vegetation base material of the embodiment, and FIG. 2 is an explanatory view showing the greening state of the masonry body of the embodiment. In the figure, 1 is a masonry body, 2 is a stone, 3 is a gap, 4 is a backside chestnut stone layer, 5 is a backside chestnut stone, 6 is a vegetation base, 7 is a nozzle, G is the ground, P is a plant, W is a river It is.

Table 1 shows the mixing ratio of the vegetation substrate 6 of this example. The volume of the tank used for kneading is 3 m ³ .

  The base material was Terrause (trade name), the fiber piece was Tensoil 3 (trade name), the solidified material was palm green (trade name), and the fertilizer was High Control 700 (trade name). These were put into a tank and kneaded with a mixer to produce a vegetation base 6.

  The vegetation base 6 is pumped to the nozzle 7 with a pump. As shown in FIG. 1, when the nozzle 7 is inserted into the gap 3 between the stone 2 and the stone 2 and the vegetation base material 6 is discharged, it is pressed into the gap between the backside chestnut 5 and the backside chestnut 5. Filled. Further, the gap 3 between the stone 2 and the stone 2 is also filled. This operation is performed for all the gaps 3 and the entire area of the backside chestnut stone layer 4.

  After 1 to 2 hours have passed since the vegetation base material 6 is filled, the solidified material in the vegetation base material 6 is solidified by a hydration reaction, and the base material and the fiber pieces are connected in a three-dimensional network to form a large number of fine particles. A void is formed and the vegetation base 6 is firmly fixed to the stone 2 and the backside chestnut stone 5. As a result, the absorbed water can be stored in the voids, the water retention is improved, the air enters and exits easily, and the plant P grows well. Moreover, even if the vegetation base 6 is subjected to a physical action such as water increase or heavy rain in the river W, it does not easily collapse and flows out unlike the prior art, and is permanently retained.

  The water is submerged in the vegetation base 6 through the gap 3 between the stones 2 and 2 by rain, and is further submerged from the upper surface of the back-filled chestnut layer 4 and the ground G to be retained in the vegetation base 6. Thereafter, the seeds in the vegetation base 6 germinate, the mixed fertilizer and the water retained are absorbed, the plant P grows, and the stems and leaves extend from the gaps 3 between the stones 2 and 2. Masonry 1 is greened. The root of the plant P further extends toward the ground G through the back-filled chestnut layer 4, and even if the fertilizer in the vegetation base 6 is depleted, the deficiency is absorbed from the ground G, grows large, and is stably established. It becomes.

  The technique of the present invention is useful for greening a built-up masonry body, but can also be applied in parallel with the construction of the masonry body.

DESCRIPTION OF SYMBOLS 1 Masonry body 2 Stone 3 Crevice 4 Backing chestnut stone layer 5 Backing chestnut stone 6 Vegetation base material 7 Nozzle G Ground P Plant W River

Claims (3)

  It is a greening method in a masonry body built by stacking stones on the side of the ground and filling the backside chestnut stone between the stones and the ground, and it is sedimentary soil or composted plant waste or a base material mixed with these A vegetation base material is prepared by kneading the fiber pieces and solidification material solidified by hydration reaction, plant seeds, fertilizer, and water, and the vegetation base material is formed into a back-filled chestnut layer from the gap between the stones. In contrast, the gap between the stones and the stone is filled, the solidification material in the vegetation base is solidified, the base material and the fiber pieces are connected in a three-dimensional network, and the seeds in the vegetation base are germinated to form the stones. A greening method for masonry, characterized by extending from the gaps between stones. The mixing ratio of the base material, the fiber piece, the solidified material, the seed, the fertilizer, and the water is 10-20 kg for the fiber piece, 20-40 kg for the solidified material, 200-500 g for the seed, and 5 for the fertilizer with respect to 1000 L of the base material. The greening method for masonry according to claim 1, wherein ˜15 kg and water is 0.2 to 0.3 m ³ .   The greening method for masonry according to claim 1 or 2, wherein the masonry constitutes a river bank.

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