JP2003047327A - Method for producing spraying base material for greening, and method for constructing slope greening - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing a spraying base material for slope greening, making it attainable to efficiently crush cut tree-originated waste to promote composting of the base material, and to provide a method for constructing slope greening using the spraying base material. SOLUTION: This method for producing a spraying base material for slope greening to be sprayed on a slope 7, comprises at least the following processes: a primary crushing process P1 of making cut tree-originated waste 1 into chips by adding the waste 1 an active water solution 2 containing a microorganism group promoting fermentation/decomposition of the waste 1, a secondary crushing process P2 of crushing the chips T1 obtained through the primary crushing process P1 by adding organic fertilizer 5 thereto, and a maturation process P3 of charging a bag with chips T2 obtained through the secondary crushing process P2 to store them so as to be matured. The method for constructing slope greening comprises the following process: adding organic fertilizer 9 to the spraying base material for greening obtained by the method for producing a spraying base material, and thereafter spraying the resultant base material on the slope 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a base material for slope greening that is used by being sprayed on a slope and a slope greening method using a sprayed base material for greening obtained by the manufacturing method. .

[0002]

2. Description of the Related Art Conventionally, vegetation is applied to the slopes (slopes) of banks, embankments, etc. to make them green. For example, a slope greening construction technique in which a spray material obtained by mixing seeds, fertilizers, a growth base material (fiber material), a bonding agent, water and the like is sprayed on the slope by a predetermined sprayer is adopted.

At present, chemical fertilizers are widely used as the above fertilizers. However, the chemical fertilizers are liable to cause excessive nitric acid and nitrite which are harmful to the growth of plants. A conversion is desired. In addition, cost reduction of growth base materials is also required.

On the other hand, in the field of being able to effectively reuse waste such as roots and branches when trees are felled and its concrete method, as the above-mentioned growth base material for slope greening, Reuse of is conceivable. However, since wastes derived from felled trees are fibrous and difficult to crush, it was difficult to use them as a chip-like growth base material suitable for spraying.

[0005] Further, the waste derived from the felled tree is composted,
It may be possible to reuse it for slope greening, but since such waste contains a large amount of cellulose, hemicellulose, and lignin that are difficult to decompose, it was difficult to efficiently ferment and decompose it into compost. .

[0006] Therefore, the present invention provides a method for producing a sprayed base material for slope greening, which can efficiently crush waste derived from a felled tree and achieve promotion of composting of the base material, and the sprayed base material. It is an object of the present invention to provide a slope greening construction method using.

[0007]

In order to achieve the above object, the present invention employs the following means.

First, the present invention relates to a method for producing a growth base material for slope greening, which is sprayed onto a slope,
(1) A primary crushing step of adding wastes derived from felled trees to chips by adding an aqueous solution containing a microbial group that promotes the fermentative decomposition of the wastes, (2) the chips obtained by the primary crushing step Secondary crushing step of adding organic fertilizer and crushing, (3) Aging step of bagging and storing chips obtained from the secondary crushing step, and fermenting, above (1) to
Provided is a method for manufacturing a greening sprayed base material including at least the step (3).

[0009] According to this manufacturing method, the waste derived from the tree harvested, which has been considered to have a large amount of fibrous material and is difficult to be crushed into chips,
Efficient crushing is carried out in two stages of crushing. Therefore, it becomes possible to surely obtain a chip of a desired size suitable for the work of spraying on the slope.

Further, in the primary crushing step, an aqueous solution containing a microbial group which promotes fermentation decomposition of the waste (hereinafter,
This is referred to as "active aqueous solution". It is possible to promote composting of the waste by adopting a means of adding). The amount of the active aqueous solution added is 100 m3 of waste when considering the amount of water in the secondary end crushing process.
About 20 liters is desirable.

Here, by setting the screen size (size of the screen) of the crushing machine used in the primary crushing step to 80 to 120 mm, particularly 100 mm, the soil and the like adhering to the root can be surely secured. It is possible to obtain a chip of a desired size while sieving it out and devising it so as not to cause clogging.

Further, the screen size of the crushing machine used in the secondary crushing step is 20 mm or less, especially 15 m.
By setting it to be m or less, a chip having a size suitable for spraying can be surely obtained.

Further, since the chips obtained in the primary and secondary crushing steps are made of wood, it is necessary to supplement the nitrogen content etc. in order to obtain a quality conforming to the quality standard of so-called bark compost. Therefore, in the secondary crushing step in the present invention, the chips obtained in the primary crushing step are crushed by adding an organic fertilizer such as rice bran or bran.

Then, the chips obtained from the secondary crushing process are packed in, for example, a bag of 1 ton capacity and stored for a predetermined period, and an aging process for fermenting and decomposing the chips is provided.
By packing the manufactured chips in a bag, the chips can be easily stored and handled for transportation.

Next, the present invention provides a slope greening method in which an organic fertilizer such as chicken manure is added to the sprayed base material for greening obtained by the above-mentioned manufacturing method and then sprayed on the slope.

According to this slope greening construction method, when the chip-shaped spraying base material for greening (growth base material), which has been fermented and decomposed and is composted, is sprayed onto the slope, chicken manure, etc. Since it is devised to further add the organic fertilizer, it is possible to provide an environment-friendly growth base material that also serves as a fertilizer. In addition, organic fertilizer such as chicken manure
Because of its immediate effect, the plant grows in a short period of time. Therefore,
Slope greening can be done in a short period of time.

As described above, the present invention newly develops a growth base material for slope revegetation that also serves as an organic fertilizer and is environmentally preferable, and also provides a novel reuse application of waste derived from felled trees. Has technical significance.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the attached FIG. Figure 1
FIG. 3 is a diagram simply showing a method for manufacturing a sprayed base material for greening and a method for constructing a sloped surface according to the present invention.

First, steps P1 to P3 of the method for manufacturing a greening sprayed base material according to the present invention will be described. This manufacturing method is a method for manufacturing a growth base material for slope greening, which is used by being sprayed on a slope such as a bank or a bank.

The first step performed in this manufacturing method is the primary crushing step indicated by the symbol P1 in FIG. This primary crushing step P1 roughly crushes the waste 1 consisting of felled roots, branches and leaves derived from the felled tree into chips, and adds an aqueous solution which has an action of promoting composting of the chips. This is a process for the purpose of

The primary crushing step P1 is carried out by using the first crusher 3 having a structure capable of physically cutting the waste 1. Specifically, the waste 1 is put into a hopper 31 connected to a cutting unit (not shown) inside the first crusher 3, and at the same time, a microbial group that functions to promote fermentation decomposition of the waste 1 is contained. The activated aqueous solution 2 is added, and the waste 1 and the activated aqueous solution 2 are mixed and crushed.

By adding this active aqueous solution 2, even if the roots, branches, etc. are derived from coniferous trees which are difficult to compost,
It is possible to smoothly perform fermentation decomposition. That is, since it becomes possible to reliably compost the wood chips, it is possible to provide the most reusable use of the waste 1 derived from the felled tree. The amount of the active aqueous solution 2 added is preferably about 20 liters per 100 m3 of waste in consideration of the amount of water that can be easily handled in the subsequent secondary end crushing step P2.

The chips T1 cut and crushed by the first crusher 3 are sieved by a screen (not shown) provided inside the first crusher 3 and are mainly attached to cuttings and the like. The earth and sand that have been removed are eliminated. The size of the screen arranged on the crushing machine 3 is in the range of 80 to 120 mm,
Particularly preferably, it is desirable to set it to 100 mm.

Next, the chip T1 is transferred to the secondary crushing step P2 by an appropriate method. The secondary crushing step P2 is performed by the second crusher 4 and its attached equipment shown in FIG. Specifically, first, the chips T1 are loaded into the storage hopper 41 adjacent to the front part of the second crusher 4, and the chips T1 are carried out by the conveyor 42 by a predetermined amount and supplied to the input hopper 43. It is thrown into a crushing unit (not shown) provided in the.

In the second crusher 4, the chips T1 are further crushed to a size suitable for the subsequent spraying work (described later). The second crushed chip represented by reference numeral T2 is the second
After passing through a sieving process using a screen (not shown) provided in the crusher 4, the crusher 4 is unloaded from the second crusher 4 via the conveyors 44 and 45.

Here, by setting the screen size provided in the second crusher 4 in the secondary crushing step P2 to 20 mm or less, particularly preferably 15 mm or less, it is possible to reliably obtain chips of a size suitable for spraying. Like

Further, since the chips obtained in the primary and secondary crushing steps are made of wood, it is necessary to have a quality that complies with the quality standard of so-called bark compost, so it is necessary to supplement nitrogen content in advance. Therefore, in the secondary crushing process P2,
Chips T1 obtained from the primary crushing process P1 are
Add organic fertilizer 5 such as bran and crush it.

Next, the chips T2 carried out from the secondary crushing step P2 are packed in a bag and stored, and an aging step P3 of fermenting is carried out. For example, the chips T2 are packed in, for example, a bag (ton pack) having a capacity of 1 ton and stored for about 3 months, and the chips T2 are fermented and decomposed to promote composting. The capacity of the bag can be appropriately selected in consideration of workability in the subsequent spraying work.

Since the aging step P3 is carried out by bagging, the composted chips T3 used as a growth base material are easily transported to the spraying work site while being packed in a bag of a fixed volume. It becomes possible. For this reason, the workability is remarkably improved as compared with the conventional complicated work of carrying out from the unloaded state and transporting it to the site, weighing a fixed amount of chips T3 on the site and spraying it onto the slope 7. To do.

Here, in order to green the slope 7, it is necessary to apply a growth base material suitable for vegetation to the slope 7. As one of the slope greening construction methods, a mixture of seed, fertilizer, growth base material (fiber material), adhesive, etc. and water is applied to the slope 7 such as a bank or a bank by a predetermined sprayer 8. Slope greening technology for spraying is used.

The slope greening method adopted in the present invention is carried out by using the chips T3 obtained by the above-mentioned manufacturing methods P1 to P3 as a growth base material. That is, seeds of a plant suitable for vegetation are mixed with the aged chip T3 in a predetermined composition,
It sprays by spraying on the slope 7 through the wet spreader 8.

Since the chip T3 is composted through the above-mentioned manufacturing steps P1 to P3, the amount of fertilizer added during the spraying work can be reduced, and since no chemical fertilizer is used at all, nitric acid, which causes vegetation damage, It is also preferable from an environmental point of view because it does not cause excess nitrite. That is, the tip T3 has a slope 7
It effectively functions as an organic material suitable as a growth base material.

Organic fertilizer 9 added during spraying work
Is preferably a fast-acting organic fertilizer such as chicken manure. Disclosed is an example of a growth substrate material suitable for spraying work. 1600 L (liters) of chip T1 containing active aqueous solution 2 and 400 L of organic fertilizer (rice bran or bran) added in the secondary crushing step P2 are sprayed. The amount of the bonding agent such as Cliquat CP-750 added at the time of work is 1.0 kg, and the seed is 1.0 kg.

The bonding agent used may be Lawnfix S or the like during the freezing period.
Seeds, mugwort, Yamahagi, Medohagi, strip weasel, tall fescue, and appropriately selected depending creeping red fetch box, etc. Kentucky bluegrass in field environments, determines a combination or mixing ratio.

[0035]

EFFECTS OF THE INVENTION According to the method for manufacturing a sprayed base material for greening and the method for constructing a sloped green surface according to the present invention, it is possible to provide reuse or recycling of wastes derived from felled trees and for waste disposal. It is possible to reduce the cost and the total cost of the spray material. Further, the waste material derived from the felled tree can be crushed and composted efficiently and reliably, and the manufacturing process period of the spray material can be shortened. Further, since no chemical fertilizer is used, there is no vegetation damage and it is preferable from the environmental aspect.

[Brief description of drawings]

FIG. 1 is a diagram schematically showing a method for manufacturing a sprayed base material for greening and a method for constructing a sloped surface according to the present invention.

[Explanation of symbols]

1 Waste (from felled trees) 2 Active aqueous solution 5 Organic fertilizer (added to chip T1) 7 slopes 9 Organic fertilizer (added during spraying work) P1 primary crushing process P2 secondary crushing process P3 aging process T1 (obtained by the primary crushing process P1) chip T2 (obtained from secondary crushing process P2) chip

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Claims (2)

[Claims] 1. A method for producing a growth base material for slope greening that is sprayed onto a slope, which is an aqueous solution containing wastes derived from felled trees and containing a microbial group that promotes fermentation decomposition of the waste. Primary crushing step of adding and chipping, a secondary crushing step of crushing by adding organic fertilizer to the chips obtained by the primary crushing step, and packing the chips obtained from the secondary crushing step into bags. A method of manufacturing a sprayed base material for greening, which comprises at least an aging step of storing and fermenting. 2. A slope greening method in which an organic fertilizer is added to the sprayed base material for greening obtained by the manufacturing method according to claim 1 and then sprayed on the slope.