JPH04371602A - Green bed structure of golf link - Google Patents

Abstract

PURPOSE:To realize the sound cultivation control of a lawn with high reliability at low cost by preventing clogging even when a drain pipe is used for a prolonged term, positively giving a proper quantity of water, the supply of oxygen and nutritive substances from the ground without waste by employing the piping and giving insecticide and disinfection liquids in soil. CONSTITUTION:An earth pressure cover 4, to which a large number of small holes 4a are formed, is arranged into a general sand 2a layer forming the sand bed 2 of a green 6, and a coarse sandy layer 3 is mounted under the earth pressure cover 4. The drain pipe 5 made of a synthetic resin of a porous wall, a lower half section of which is filled up with waterproof paints and used as an impermeable section 5b, is disposed into the coarse sandy layer 3.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a green floor structure for a golf course.

0002

2. Description of the Related Art Many of the greens at golf courses are so-called sand greens, in which the green floor is formed of sand and grass is spread on top of it.

[0003] The reason why the green floor is made of sand is expected to have better drainage compared to soil, and after the grass is laid, water and fertilizer are applied from above the green, that is, from the surface of the grass, in order to grow the grass. In the same way, pesticides are applied from the surface of the lawn to provide nutrients and to suppress the growth of pests and weeds. In particular, regarding the water sprinkling, water is sprayed from a water nozzle at the end of a hose, or a sprinkler is installed near the green so that the water sprayed from the sprinkler can reach the green.

0004

[Problem to be solved by the invention] However, when watering sand greens from above, the water often evaporates from the green surface or flows out of the green via the green edges without reaching the inside of the sand bed. . Therefore, in anticipation of the amount that will flow away without penetrating, it is necessary to sprinkle as much water as possible. On the other hand, if too much water is applied, even during heavy rain, or if snowfall continues for a long time in a cold region, water may accumulate in the sand bed and cause the grass to become rooted.

In order to deal with such problems, the inventors first introduced water pipes under the green floor, and installed a porous rubber or resin pipe at the end of the pipe that allows liquid to seep out from inside under low water pressure. A golf course green with extended water pipes was filed as Japanese Patent Application No. 2-246300. These porous water sprinkler tubes made of rubber or resin are sponge-like flexible tubes having micropores made of foamed rubber or foamed synthetic resin.

However, the sprinkler pipes made of foamed rubber or foamed synthetic resin are structurally weak, and if buried as is, there is a risk that they will collapse or become clogged due to earth pressure over time. Furthermore, although it is leached from the inside using water pressure, the micropores tend to become clogged if it is exposed to the corrosive action of bacteria in the soil.

An object of the present invention is to eliminate the disadvantages of the conventional example, and to use the water pipe for a long time without worrying about it becoming damaged, and to use this water pipe to reliably and without wasting the appropriate amount of water.
It can provide oxygen, nutrients, insecticides, and disinfectant to the grass.
As a result, it is an object of the present invention to provide a green floor structure for a golf course that can realize the healthy growth and management of grass at low cost and with a high degree of reliability.

[0008]

[Means for Solving the Problems] In order to achieve the above object, the present invention arranges an earth pressure cover with a large number of small holes in the general sand layer forming the green sand bed, and the earth pressure cover is covered under the earth pressure cover. The main feature is to create a coarse sandy layer and install a synthetic resin water pipe with a porous wall in which the lower half is sealed with waterproof paint to create an impermeable area. It is.

[0009]

[Function] According to the present invention, water is introduced directly under the green floor through water pipes without being sprinkled from above, and further,
Only the upper half of the water pipe is porous and permeable, and water flows slowly through the impervious lower half, while water is absorbed from the upper half into the surrounding coarse sandy layer through natural evaporation. In this way, water is effectively added to the green bed in small amounts without wastage, keeping soil moisture at an appropriate level, and as a result, the stems and roots naturally activate towards the nutrient solution from the water source in the lower part of the soil. It is possible to effectively cultivate grass that grows and becomes a living organism that is resistant to insects and bacteria.

[0010] The same applies when using this water pipe to supply nutrient water or agricultural chemicals containing minerals instead of water. Furthermore, by connecting a blower to a water distribution pipe and using this water distribution pipe as an air supply pipe to supply air to the green floor, it is possible to provide oxygen and the like to activate nutrients in the soil. To improve winter heating and summer cooling effects, water and air can be temperature-controlled and supplied in a planned manner.

[0011] On the other hand, since the upper part of the water pipe is protected by an earth pressure cover, there is no risk of it being crushed by earth pressure even after long-term use, and it is less likely to become clogged.

0012

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows green 6 in the golf course of the present invention.
Fig. 2 is a vertical sectional front view of the main part of the same, in which a sand bed 2 made of general sand 2a is placed under the grass 1 on the surface.
form. The above structure is the same as that of the conventional sand green, but the present invention includes an earth pressure cover 4 in which a large number of small holes 4a are provided in the layer of general sand 2a forming the sand bed 2 of the green 6, A synthetic resin water pipe 5 is arranged below it.

The earth pressure cover 4 is a curved plate made of vinyl chloride or the like, and a coarse sand layer 3 is formed below the earth pressure cover 4, and there is a layer of about 10 cm between the earth pressure cover 4 and the earth pressure cover 4 in the coarse sand layer 3. A synthetic resin water pipe 5 is arranged at a distance. The synthetic resin water pipe 5 is a pipe with a porous wall made of vinyl chloride, and its lower half is sealed with waterproof paint to form an impermeable part 5b. The upper half becomes a water-permeable part 5a with many small holes.

As shown in FIG. 3, in the sand bed 2 of the green 6, a main water distribution pipe 7 made of vinyl chloride or the like is installed with a valve 13 in the middle for water reduction and water stoppage, and is directed toward the center of the green 6. The synthetic resin water distribution pipe 5 is connected to this water distribution main pipe 7 as a branch pipe. Similarly, the fairway 14 is also provided with a water distribution main pipe 7 and a synthetic resin water pipe 5.

In this way, the main water distribution pipe 7 is connected to the water supply source, and the valve 13 adjusts the water pressure to be sent to the synthetic resin water pipe 5 to a water pressure of about 0.1 to 2 kilograms per square centimeter. However, if the flow rate is set to a maximum of about 40 milliliters per meter per minute, water can flow gently through the impermeable portion 5b of the synthetic resin water pipe 5. The water that evaporates during this flow is absorbed into the coarse sand layer 3, and further reaches the general sand 2a over the earth pressure cover 4, and passes through the sand bed 2 to the root group area of the grass 1. is effectively sent to the soil to maintain soil moisture at an appropriate level. In detail, by systematically pouring water from the bottom according to the moisture content of the soil, the development of grass roots is doubled due to capillary action compared to normal surface watering, making them more resistant and resistant to damage. It is something.

The above is a case in which water is given to the lawn 1, but the main water distribution pipe 7 and the water distribution pipe 5 may be used to supply nutrients or agricultural chemicals instead of water. On the lawn, wild grass,
In addition to the native grasshopper, there are other pests that can be found on lawns, such as the grasshopper moth and the grass weevil, which are said to have invaded Japan with the import of the grasshopper. The larvae lay their eggs by injuring the grass, and at first they feed on the stems of the grass, but eventually they burrow to about 5 to 6 cm underground and start eating the roots. Regarding pesticides, instead of spraying them from above the green 6 as in the past, they are evaporated from the water pipe 5, or the amount of water is increased and seeped out from the water-permeable part 5a in the upper half of the soil. It is possible to sterilize the interior and inject insecticides without waste, effectively kill insects that burrow underground, and only need to apply the minimum amount necessary, contributing to the use of less pesticides at golf courses.

FIG. 4 shows a second embodiment of the present invention.
A multi-tube assembly 8 in which tubes 8a such as honeycomb pots are successively arranged in parallel is buried in a layer of general sand 2a forming the sand bed 2, and a drain layer 9 partitioned by the tubes 8a is formed. 9, the earth pressure cover 4 of the first embodiment and the synthetic resin water pipe 5 below it are arranged. Furthermore, although a honeycomb pot was used in this example, the shape is not limited to a honeycomb, as long as it is a multi-tube aggregate that can fill each tube with sand or soil, such as a lattice pot that is a collection of rectangular tubes, etc. It is also possible to use a scaly pot, which is a collection of triangular tubes.

Although the multi-tube assembly 8 may be made of paper such as cardboard, it is preferably made of synthetic resin such as vinyl chloride sheet in view of its easy perishability. Moreover, what is filled in each tube 8a of the multi-tube aggregate 8 may be general sand that forms the sand bed 2, but it may also be a special sand 10 mixed with ceramic (theodolite), carbon, or the like. Further, in this multi-tubular aggregate 8, each cylinder 8a of the (honeycomb) pot is filled with the special sand 10 mixed with ceramic (theodolite), carbon, etc. to form a sand column, and the adjacent The cylinder 8a may be filled with soil 11, which is a soil reforming material having an organic aggregate structure, to form a soil column.

This soil 11 contains cow dung, inorganic red soil,
A suitable method is to mix theodolite or the like as a raw material using a unique method, and then ferment it by injecting a liquid created by a combination of water and magnetism induced by an ultra-trace amount of divalent and trivalent iron salt. The sand column made of the special sand 10 and the soil column made of the cultivated soil 11 are cylinders 8a.
In relation to this, they may be arranged in rows or may be arranged alternately, and the arrangement is not particularly limited.

In this way, in this embodiment, by providing the drain layer 9, water coming out of the synthetic resin water pipe 5 is sucked upward by the drain layer 9, and is effectively directed toward the root group area of the grass 1. It will be sent.

[0021]Furthermore, it is not impossible to sprinkle fertilizers and pesticides over Green 6. In this case, since there is a drain layer 9, there is less fertilizer runoff due to rainwater, etc. compared to sand green with only a sand bed, high fertilizer retention capacity is maintained, and constant drainage is achieved even in heavy rain, making it possible to prevent snow in cold regions. You can also get a heat retention effect that prevents rooting.

[0022]

[Effects of the Invention] As described above, the golf course green floor structure of the present invention allows water, etc. to be introduced directly to the bottom of the green floor through water pipes without being sprinkled from above. It provides moisture to the bed, maintains soil moisture at an appropriate level, and as a result, it is possible to manage the healthy growth of turf at low cost and with a high degree of reliability. In addition, since the minimum necessary amount of pesticides can be applied directly to the ground, it can contribute to reducing the amount of pesticides used. By placing a layer of charcoal powder in the lower part of the soil, residual pesticides can be decomposed and runoff outside the area can be completely cut.

Furthermore, since the upper part of the water pipe is protected by an earth pressure cover, there is no risk of it being crushed by earth pressure even after long-term use, and it is less likely to become clogged.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view showing a first embodiment of a golf course green floor structure according to the present invention.

FIG. 2 is a longitudinal sectional front view of a main part showing a first embodiment of the golf course green floor structure of the present invention.

FIG. 3 is a plan view of the entire green having the floor structure of the present invention.

FIG. 4 is a perspective view of the main parts of a second embodiment of the golf course green floor structure of the present invention.

[Explanation of symbols] 1... Grass
2...Sand bed 2a...General sand
3...Coarse sandy layer 4
…Earth pressure cover
4a...Small hole 5...Water pipe
5a...Water permeable part 5b...Impermeable part 6
…Green 7…Water mains
8...Multi-tube assembly 8a...Cylinder
9
…Drain layer 10…Special sand
11...Cultivating soil 13...Valve 14...Fairway

Claims (1)

[Claims] Claim 1: An earth pressure cover with a large number of small holes is placed in the general sand layer that forms the green sand bed, and a coarse sand layer is formed under the earth pressure cover. To,
A green floor structure for a golf course characterized by installing a synthetic resin water pipe with a porous wall whose lower half is sealed with waterproof paint to make it an impermeable part.