JP3811664B2 - Lawning method, lawn mat manufacturing method, lawn mat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lawn conversion method, a turf mat manufacturing method, and a turf mat, and more particularly, to a lawn conversion method, a turf mat manufacturing method, and a turf mat suitable for a schoolyard.
[0002]
[Prior art]
The school grounds of the conventional school are exposed to the ground, and physical education, extracurricular activities, and athletic meet are held on it.
However, when the soil is exposed, it is not only aesthetically unfavorable, but the ground is too hard, and it tends to cause injury and pain of the legs.
[0003]
Further, when the soil is exposed, it is not environmentally preferable, such as outflow due to dust or rainwater.
[0004]
[Problems to be solved by the invention]
Therefore, there is an idea of planting a lawn on the ground of the school yard to convert the school yard into a lawn, but currently the following two points have not been solved.
First, simply planting a lawn in the schoolyard does not solve the problem of drainage, so a large amount of water accumulates on the lawn when it rains.
[0005]
Secondly, the conventional construction method has a long construction period (construction / curing), and therefore, for example, it may extend from spring to autumn. During this period, physical education classes are not possible in the schoolyard, which is very inconvenient.
An object of the present invention is to provide a lawn with good drainage on land such as a schoolyard. Another object of the present invention is to enable activities on a yard in a short period of time when land such as a schoolyard is converted to lawn.
[0006]
The lawn conversion method according to claim 1 is a method for converting bare ground into lawn, and includes the following steps.
◎ Drainage structure installation process to provide drainage structure on bare ground ◎ Grass sticking on a bare ground with a lawn mat composed of a porous layer of natural rock containing at least one of Shirasu, Bora, and Kanuma soil Process In this lawn conversion method, a lawn mat having a soil layer made of a porous material is attached to bare ground, so that a lawn with good drainage can be cultivated. When it rains on this lawn, it quickly penetrates the soil layer of the turf mat and drains from the drainage structure.
[0007]
In the lawnization method according to claim 2, in claim 1, the soil layer of the turf mat has a thickness in the range of 3 to 10 cm.
In this turf-making method, the soil layer of the turf mat has a thickness in the range of 3 to 10 cm.
In the lawnization method according to claim 3, in claim 2, the soil layer of the turf mat has a thickness in the range of 4 to 6 cm.
[0008]
In this lawn conversion method, the soil layer of the turf mat has a thickness in the range of 4 to 6 cm, so that the turf is quickly settled and does not become heavier than necessary and the operation is facilitated.
The lawn conversion method according to claim 4 is the method of any one of claims 1 to 3, wherein a soil laying step of laying a soil made of a porous material on bare ground between the drainage structure installation step and the turf pasting step. It has more.
[0009]
In this lawn conversion method, the soil composed of the porous body is laid on the bare ground by the soil laying step, and as a result, the thickness of the layer composed of the porous body is increased, and drainage is further improved.
In the lawnization method according to claim 5, in claim 4, the soil in the soil spreading step has a thickness of 5 to 10 cm.
[0010]
In this lawn conversion method, the soil in the soil spreading process has a thickness in the range of 5 to 10 cm, so that the thickness of the layer made of the porous body is increased, and drainage is further improved.
In the lawn conversion method according to claim 6, in claim 4 or 5, the soil permeability of the turf mat in the lawn pasting step and the soil in the soil spreading step have the same hydraulic conductivity.
[0011]
In this lawn conversion method, the soil permeability of the turf mat in the turf pasting process and the soil in the soil laying process have the same hydraulic conductivity, so that water permeation is smooth when it rains.
The turf mat manufacturing method according to claim 7 includes the following steps.
◎ Grass growing process to grow turf with soil layer made of natural rock porous material containing at least one of Shirasu, Bora, Kanuma soil ◎ Grass mat making process to cut grass with soil layer after turf growing process In this turf mat manufacturing method, a turf mat with a soil layer made of a porous material is obtained, so that drainage of the land where the turf mat is planted is improved.
[0012]
In this turf mat manufacturing method, the porous body is made of natural rock. Therefore, the manufacturing cost is lowered .
[0013]
In the turf mat manufacturing method according to an eighth aspect , the porous body according to the seventh aspect is configured by mixing at least two of Shirasu, Bora, and Kanuma soil.
In this turf mat manufacturing method, since a porous body is formed by mixing a plurality of types of materials, a composite effect can be realized in the growth of the turf mat. For example, Shirasu has high water permeability and is easy to dry, whereas Kanuma soil has good water retention and fertilization properties, and Bora has properties between them. By mixing these appropriately, it is possible to realize the optimum soil for turf cultivation.
[0014]
In the turf mat manufacturing method according to claim 9 , in claim 7 or 8 , the soil layer of the turf mat has a thickness in the range of 3 to 10 cm.
In this turf mat manufacturing method, since the soil layer of the turf mat has a thickness in the range of 3 to 10 cm, the turf settles quickly.
In the turf mat manufacturing method according to claim 10 , in claim 9 , the soil layer of the turf mat has a thickness in the range of 4 to 6 cm.
[0015]
In this turf mat manufacturing method, since the soil in the soil spreading process has a thickness in the range of 5 to 10 cm, the thickness of the soil layer made of the porous body is increased, and drainage is further improved.
Grass mat according to claim 1 1, shirasu, includes mullet, and soil layer made of a porous material of natural rocks containing at least any one of Kanuma soil, and turf growing in the soil layer Yes.
[0016]
Since this turf mat has a porous soil layer, the drainage of the land where the turf mat is planted is improved.
Furthermore, in this turf mat, the porous body is made of natural rock. Therefore, the manufacturing cost is lowered.
Further , the porous body contains at least one of Shirasu, Bora, and Kanuma soil. Therefore, the manufacturing cost is lowered.
[0017]
The grass mat according to claim 1 2, in claim 1 1, the porous body is constituted by mixing Shirasu, mullet, at least two or more of Kanuma soil.
In this turf mat, since a porous body is formed by mixing a plurality of types of materials, a composite effect can be realized in the growth of the turf mat. For example, Shirasu has high water permeability and is easy to dry, whereas Kanuma soil has good water retention and fertilization properties, and Bora has properties between them. By mixing these appropriately, it is possible to realize the optimum soil for turf cultivation.
[0018]
The grass mat according to claim 1 3, in claim 1 1 or 12, soil layer of grass mat thickness is in the range of 3 to 10 cm.
In this turf mat, since the soil layer of the turf mat has a thickness in the range of 3 to 10 cm, the turf settles quickly.
The grass mat according to claim 1 4, in claims 1 to 3, the soil layer of grass mat thickness is in the range of 4-6 cm.
[0019]
In this turf mat, the soil layer of the turf mat has a thickness in the range of 4 to 6 cm. Therefore, the turf is quickly settled and does not become heavier than necessary and the operation is facilitated.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a school ground 1 before an embodiment of the present invention is applied. This ground 1 is bare ground with bare soil.
Hereinafter, a method for converting the ground 1 into lawn will be described for each step.
(1) Drainage structure installation process A drainage structure 2 is provided on the ground 1. As shown in FIG. 2, the drainage structure 2 includes a pipe 3 with holes and a crushed stone 4. First, a plurality of grooves 1 a are provided on the surface of the ground 1. Subsequently, the pipe 3 is installed in the groove portion 1a while being surrounded by the crushed stone 4. As shown in FIG. 5, the pipe 3 is disposed so as to cover the entire ground 1.
[0021]
(2) Soil laying step Soil 5 is laid on the surface of the ground 1. As the soil 5, for example, shirasu is used. Shirasu is a secondary deposit of volcanic discharges such as grayish white and rough pumice that are distributed in southern Kyushu and is glassy. A vast ground is created around Kagoshima Bay, and it has a thickness of several meters to several tens of meters and contains almost no viscosity. In addition to shirasu, other porous materials may be used. In that case, it is preferable to use natural rock because it is cheaper. For example, there are Kanuma soil and Bora.
[0022]
As a kind of soil spread on the surface of the ground, only a relatively large crushed stone may be used, or a porous material may be disposed on the crushed stone. Furthermore, the porous material may be a single soil of any one of Shirasu, Bora, and Kanuma soil, or may be a composite soil in which any two or more are mixed.
The soil 5 may be impregnated with wood vinegar. Wood vinegar is obtained as follows. When the smoke generated during the carbonization of wood is cooled, it is divided into gas and liquid, and when the liquid is left in the container and left as it is, it is divided into three layers. Essential oil and black oily components float in the upper layer, and a sticky tar-like component precipitates in the lower layer. An intermediate yellow-red-brown transparent liquid is a wood vinegar liquid. As a method of including the wood vinegar in the shirasu, for example, the shirasu is soaked in the wood vinegar for a long time. Alternatively, a wood vinegar solution is injected into the shirasu under pressure. When injection is performed under pressurized conditions, a large amount of pyroligneous acid is injected into the shirasu in a short period of time. The following effects are generated by the action of the wood vinegar. First, the occurrence of pest damage is suppressed. This is because the wood vinegar has antibacterial action and pest repellent action. As a result, the lawn is not easily affected by soil fungi. In particular, the wood vinegar contained in the shirasu flows out of the shirasu every time it rains and is gradually supplied to the grass roots. Plant extracts other than wood vinegar include pepper, garlic, bear 笹, cocoon, dokudami, seri, chickweed, clover, kuzu, seaweed, mustard, bamboo shoots, akebi fruits, cedar seeds, seed extract, rice husks, bamboo, bamboo shoots Etc. may be used. Moreover, you may use a chitosan liquid etc. Since wood vinegar is a natural plant extract, it does not adversely affect the surrounding environment even if it flows out in large quantities due to long rain or heavy rain. Furthermore, an agrochemical or a fertilizer may be put in the shirasu of the soil 5 instead of the plant extract. Since agrochemicals and fertilizers are contained in the shirasu in advance, the effect is moderated as the lawn grows. Further, as a kind of fertilizer, trace elements (manganese, copper, boron, zinc, molybdenum, iron, etc.) and hormone agents may be placed in the shirasu. When natural fertilizers, pesticides, or natural extracts are used as the liquid to be soaked into the porous body, the surrounding environment will not be adversely affected even if they flow out.
[0023]
The thickness of the soil 5 is in the range of 5-10 cm. Thus, drainage improves by forming a porous layer with good water permeability.
(3) Turf Mat Pasting Step As shown in FIG. 4, the turf mat 9 is pasted on the soil 5. The turf mat 9 is a field turf sheet, and is composed of a turf layer 22 and a soil layer 23 as shown in FIG. The grass layer 22 has a cutting height of about 12 mm. As the soil layer 23, for example, shirasu is used. The soil layer 23 has a thickness of about 5 cm, and the grass roots are intricately entangled inside. This turf mat 9 can prevent erosion of the soil 5.
[0024]
2. Turf Mat Manufacturing Method An example of a method for manufacturing the turf mat 9 will be described with reference to FIG.
(1) Porous soil layer forming operation First, a vinyl sheet 25 is pasted on the soil layer 24 in the field (A). The vinyl sheet 25 is an agricultural resin sheet made of polyethylene or the like. The color of the sheet 25 may be any color including black and transparent. A plurality of drain holes 25 a are formed in the sheet 25 in advance. In the vinyl sheet 5, the holes 25 a are provided so that, for example, about 6 to 9 holes per 1 m square are approximately equidistant.
[0025]
Next, a soil layer 23 having a predetermined thickness is formed on the vinyl sheet 25 (B). The soil layer 23 is made of shirasu and is as uniform as possible with a thickness of about 5 cm.
(2) When the formation of the turf growing soil layer 23 is completed, turf seeds (not shown) are sown on the surface of the soil layer 23, and turf growing with watering and fertilizer supply is performed (C). Here, the turf root 27 extends into the soil layer 23, and part of the grass root 27 enters the soil layer 24 through the holes 25 a of the vinyl sheet 25 and absorbs the fertilizer from the soil layer 24. Excess rainwater and water spray penetrate into the soil layer 24 through the holes 25 a of the vinyl sheet 25. Further, the vinyl sheet 25 can prevent weeds and pests from entering the soil layer 23 from the soil layer 24. Furthermore, the grass roots 27 that have entered the soil layer 24 through the holes 25a act as locking portions, and the movement of the soil layer 23 due to rain or the like can be prevented.
(3) Turf mat creation work When the turf grows for more than one year, the turf is cut into a predetermined area and shape according to the order. For example, a 4 m square turf mat 9 is cut out. When the turf cutting operation is completed, the end portions of the cut turf mat 9 and the vinyl sheet 25, for example, are grasped and rolled up. At this time, the grass mat 9 and the vinyl sheet 25 are peeled off from the surface of the soil layer 24 while cutting off the root 27 extending from the hole 25a with a cutter 28 or the like (D3). Since only a part of the grass root 27 grown in the soil layer 23 extends to the soil layer 24, the root 27 is easily cut off, and the grass mat 9 and the vinyl sheet 25 are removed from the soil layer. Easy to peel off from 24. Further, there are only a few turf roots 27 to be cut in the turf stripping operation, and most of the roots 27 are maintained in a healthy state, so that turf management after the turf pasting operation is facilitated.
[0026]
In the above turf mat creation work, when the turf mat 9 is cut, it is not necessary to separate the root part of the turf mat from the underlying soil layer. Therefore, it is only necessary to cut the contour of the turf mat 9 into a desired shape in the field. Therefore, the width of the cut turf is not limited to the width of the teeth as in the conventional turf pasting machine, the area can be increased, and the shape can be freely changed.
[0027]
The peeled turf mat 9 is wound around a hollow support bar 33 in a roll shape, for example, as shown in FIG. 9 after the vinyl sheet 25 is removed. Subsequently, a turf mat shipping set 32 is created through the thin second support bar 34 in the support bar 33. The turf mat 9 becomes compact by being rolled, and does not take up space during transportation. In addition, the turf mat being transported is not easily damaged by the support bar 33, and therefore is not easily damaged.
[0028]
When the turf mat 9 is planted, specifically, the turf mat 9 is expanded by moving the second support bar 34 of the shipping set 32 with a crane vehicle. At this time, the support bar 33 and the turf mat 9 rotate smoothly around the second support bar 34. Here, since the turf mat 9 is cut in advance according to the shape of the place to be planted, the turf mat 9 fits in a predetermined place. Since the number of turf mats is reduced, the seam of the turf mats is minimized. Further, since the turf mat 9 has a large area, the degree of adhesion with the ground is high. As a result, it is possible to compete on the turf mat 9 without waiting for it to take place.
[0029]
3. Advantages of the present invention (1) Drainage (1) Since the turf mat 9 having the soil layer 23 made of a porous material is attached to the ground 1, a lawn with good drainage can be grown. When rain falls on this lawn, the rain quickly penetrates the soil layer 23 of the turf mat 9 and is drained from the drainage structure 2.
[0030]
{Circle around (2)} In this lawn conversion method, since the soil 5 made of a porous material is laid on the ground 1 by the soil laying step, as a result, the thickness of the layer made of the porous material is increased and the drainage is further improved.
In particular, in this embodiment, since the thickness of the layer made of the porous body is about 10 to 20 cm, a large layer having a high water permeability can be secured.
[0031]
(3) If the water permeability coefficient of the soil layer 23 of the turf mat 9 in the turf pasting process and the soil 5 in the soil laying process are approximately the same, the water permeation when it rains becomes smooth. In particular, when the same material is used as in the present embodiment, the water permeability coefficient becomes equal, and water stays almost completely.
(2) Use of the ground Since the thickness of the layer made of a porous material is increased, for example, when the present invention is used in a schoolyard, a cushion feeling is obtained, and the burden on the legs and legs of the student is reduced. This reduces foot and hip pain and injury.
[0032]
(3) Shortening the period from the start of use to the start of use (1) Since the turf mat 9 is enlarged, the turf mat 9 hardly moves due to its own weight, and it is possible to perform activities on it without waiting for the dressing become.
(2) Since the turf mat 9 is increased in size, the seams between the turf mats 9 are reduced, so that peeling from the seam portion is less likely to occur. Therefore, it is possible to work on it without waiting for the dressing.
[0033]
(3) Since the soil layer 23 of the turf mat 9 has a thickness in the range of 3 to 10 cm, the turf settles quickly. Further, since the soil layer 23 of the turf mat 9 has a thickness in the range of 4 to 6 cm, the turf is quickly settled and does not become heavier than necessary and the operation is facilitated.
(4) Advantages of turf mat (1) The soil layer 23 of the turf mat 9 is a porous body made of natural rock, and includes at least one of Shirasu, Bora, and Kanuma soil. Therefore, the manufacturing cost is lowered.
[0034]
(2) The soil layer 23 of the turf mat 9 may be configured by mixing at least two of Shirasu, Bora, and Kanuma soil. In that case, since a porous body is formed by mixing a plurality of types of materials, a composite effect can be realized in the growth of the turf mat. For example, Shirasu has high water permeability and is easy to dry, whereas Kanuma soil has good water retention and fertilization properties, and Bora has properties between them. By mixing these appropriately, it is possible to realize the optimum soil for turf cultivation.
[0035]
3. Other Embodiments The present invention is not limited to the above-described embodiments, and various changes and modifications can be made without departing from the scope of the present invention.
For example, if necessary, the soil spreading process can be omitted. Moreover, the kind of drainage structure is not limited to the said embodiment.
[0036]
【The invention's effect】
In the lawn conversion method according to the present invention, a lawn mat having a soil layer made of a porous material is attached to bare ground, so that a lawn with good drainage can be cultivated. When it rains on this lawn, it quickly penetrates the soil layer of the turf mat and drains from the drainage structure.
In the turf mat manufacturing method and the turf mat according to the present invention, a turf mat with a soil layer made of a porous material can be obtained, so that drainage of the land where the turf mat is planted is improved.
[Brief description of the drawings]
FIG. 1 is a perspective view of a schoolyard before a lawn conversion method according to an embodiment of the present invention is applied.
FIG. 2 is a cross-sectional view for explaining a lawn conversion method according to an embodiment of the present invention for each step.
FIG. 3 is a cross-sectional view for explaining a lawn conversion method according to an embodiment of the present invention for each step.
FIG. 4 is a cross-sectional view for explaining a lawn conversion method according to an embodiment of the present invention for each step.
FIG. 5 is a perspective view of a school yard subjected to a lawn conversion method according to an embodiment of the present invention.
FIG. 6 is a plan view of a school yard subjected to a lawn conversion method according to an embodiment of the present invention.
FIG. 7 is a perspective view of a turf mat as one embodiment of the present invention.
FIG. 8 is a cross-sectional view for explaining a method of manufacturing a turf mat as one embodiment of the present invention for each step.
FIG. 9 is a partial perspective view showing a winding state of the turf mat.
[Explanation of symbols]
1 Ground 2 Drainage Structure 3 Pipe 4 Crushed Stone 5 Soil 9 Lawn Mat 22 Lawn Layer 23 Soil Layer

Claims (14)

A method for making bare land into grass,
A drainage structure installation step of providing a drainage structure in the bare ground;
A lawn pasting step of pasting a turf mat having a soil layer made of a porous body of natural rock containing at least one of Shirasu, Bora, and Kanuma soil ;
Lawning method equipped with.   The lawnization method according to claim 1, wherein the soil layer of the turf mat has a thickness in a range of 3 to 10 cm.   The lawnization method according to claim 2, wherein the soil layer of the turf mat has a thickness in the range of 4 to 6 cm.   The lawn formation according to any one of claims 1 to 3, further comprising a soil laying step of laying a soil made of a porous body on the bare ground between the drainage structure installation step and the turf pasting step. Method.   The lawnization method according to claim 4, wherein the soil in the soil spreading process has a thickness of 5 to 10 cm.   The lawnization method according to claim 4 or 5, wherein the soil layer of the lawn mat in the lawn pasting step and the soil in the soil spreading step have the same hydraulic conductivity. A lawn growing process for growing grass in a soil layer made of a porous body of natural rock containing at least one of Shirasu, Bora, and Kanuma soil ;
A turf mat making step of cutting out the turf together with the soil layer after the turf growing step;
A method for producing a turf mat. The said porous body is a turf mat manufacturing method of Claim 7 comprised by mixing at least 2 or more among Shirasu, Bora, and Kanuma soil. The turf mat manufacturing method according to claim 7 or 8 , wherein the soil layer of the turf mat has a thickness in a range of 3 to 10 cm. The turf mat manufacturing method according to claim 9 , wherein the soil layer of the turf mat has a thickness in a range of 4 to 6 cm. A soil layer composed of a porous body of natural rock containing at least one of Shirasu, Bora, and Kanuma soil ;
Turf growing on the soil layer;
Turf mat equipped with. The porous body Shirasu, mullet, is constructed by mixing at least two or more of Kanuma soil, turf mat according to claim 1 1. The turf mat according to claim 11 or 12 , wherein the soil layer of the turf mat has a thickness in a range of 3 to 10 cm. The grass mat soil layer is in the range thickness of 4-6 cm, turf mat according to claim 1 3.

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