JPH06113674A - Facility for maintaining surface of ground in golf course green or the same - Google Patents

Abstract

PURPOSE:To highly improve effects such as the circulatory utilization of collected water, the prevention of underground water pollution caused by agricultural chemicals, disinfectants, sterilizers, fertilizers, etc., and the prevention of the drying of the surface of the ground, contrive the healthy growth of lawn grasses, and keep the temperature of the surface of the ground constant. CONSTITUTION:Stones, filtering materials, etc., are deposited under the ground of a golf course green 1, etc., and water is stopped on the lower side and the periphery of the deposited materials to form a water-retaining layer 4. An air layer 3 similarly comprising stones, filtering materials, etc., is formed on this water-retaining layer. The water-retaining layer is connected to an outer water tank 7 through a water-collecting piping 8 and a water-returning piping 15, and the air layer 3 is also connected to an air-supplying source 10 through an air-supplying piping 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface management facility that manages a surface environment for healthy growth of plants such as grass on a golf course green.

The present inventor has already proposed a circulating water sprinkling facility in a golf course green or the like as disclosed in Japanese Patent Laid-Open No. 4-22526. This forms an underground water storage area in the underground ground such as a golf course green with a gravel layer and an impermeable sheet surrounding the underside and surroundings, and the gravel layer is connected to a water storage tank outside the underground water storage area. In addition, the upper water collecting pipe and the lower water collecting pipe are vertically embedded, and in order to spray the water in the water storage tank to the surface of the earth, a water spray pipe is piped from the water storage tank.

[0003]

This prior art is intended to recycle collected water, prevent groundwater contamination by pesticides, disinfectants, fungicides, fertilizers, etc., and prevent surface dryness. Therefore, although the objectives can be sufficiently achieved in these points, it cannot be said to be sufficient in terms of healthy growth of plants such as grass.

The object of the present invention is to improve upon this prior art,
The effects of recycling the collected water, preventing groundwater pollution by pesticides, disinfectants, bactericides, fertilizers, etc., and preventing surface dryness can be further improved, and the effects of healthy growth of grass and other plants are also fully demonstrated. It is possible to keep the surface temperature constant.

[0005]

According to the present invention, in the underground ground of a golf course green or the like, an aquifer layer is formed in which stones, filter media, etc. are deposited and the underside and the periphery thereof are stopped. On the upper side of the layer, an air layer similarly formed by depositing stone materials, filter media, etc. is formed. Then, the aquifer layer is connected to an external water storage tank through a water collection line, and the air layer is connected to an air supply source through an air supply line for supplying air to the inside.

Further, the following configuration may be added. In order to adjust the water level in the aquifer arbitrarily, a water level adjusting valve will be installed in the water collection line. In order to supply the required amount of water from the water storage tank to the aquifer at any time, a return pipe for returning the water in the water storage tank to the aquifer by a pump is provided between the water storage tank and the water storage tank. Set up. A cooling / heating machine for cooling or heating the water in the water storage tank is provided to adjust the water temperature of the aquifer. The air from the air supply source is supplied to the water storage tank through the air supply pipe, and the water in the water storage tank is aerated. Ozone is sent together with air through the air supply line to sterilize and decompose pesticides.

[0007]

According to the present invention, an air layer is formed between the surface of the earth and an aquifer under the ground, in the same manner as the aquifer, and an air layer on which stone materials, filter media, etc. are deposited is formed, and air is supplied to this air layer The aquifer can control soil moisture and fertilizer, and the air layer can prevent root rot and diseases of plants such as grass. Therefore, healthy growth of plants can be achieved, and use of pesticides, disinfectants, bactericides, etc. can be minimized. Further, the water that has penetrated into the ground can be filtered and purified in the air layer and the water retention layer, then collected in the water storage tank, further purified in the water storage tank, and then reused.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. In FIG. 1, the surface layer of the golf course green 1 is formed of a sand layer 2, and an air layer 3 and an aquifer layer 4 are formed under the sand layer 2 similarly to a stone material such as gravel or a porous filter material (natural or artificial). Either is acceptable), or ceramic pipes are piled up to be continuously formed on the top and bottom. The sand layer 2 and the air layer 3 are partitioned by a water permeable sheet 5 such as a net, and the air layer 3 has a thickness of the sand layer 2 that is substantially uniform when viewed from the ground surface (lawn), The deposit thickness of stone and filter media is changed according to the ground surface.

The lower side and surroundings of the aquifer 4 are stopped by, for example, a water impermeable sheet 6, so that water can be stored in the aquifer 4. The impermeable sheet 6 may be extended upward to the periphery of the air layer 3 and the periphery of the air layer 3 may be stopped. Further, the boundary between the air layer 3 and the aquifer layer 4 is not an absolute boundary but fluctuates up and down depending on the water level in the aquifer layer 4 as shown by the chain line.

The aquifer layer 4 is connected to a water storage tank 7 buried in the ground outside the green 1 through a water collection conduit 8.
A water level adjusting valve 9 is provided in the middle of the water collecting conduit 8 so that the water level in the aquifer 4 can be adjusted by the water level adjusting valve 9. That is, when the water level in the aquifer 4 becomes equal to or higher than the water level set by the water level adjusting valve 9, the water in the aquifer 4 automatically flows into the water storage tank 7 through the water collecting conduit 8. The structure of the water level adjusting valve 9 will be described later.

On the other hand, the air layer 3 is connected to a blower (air supply source) 10 installed at an appropriate place on the ground through an air supply pipe 11 and is supplied with air. Further, the air supply pipe 11 is branched and connected to the diffused gas 12 in the water storage tank 7 so that the water in the water storage tank 7 can be aerated. Further, an ozone generator 13 is connected to the air supply pipe 11, and ozone can be sent into the air layer 3 and the water storage tank 7 together with air through the air supply pipe 11.

A pump 14 is installed in the water storage tank 7, and the water in the water storage tank 7 is sent to the water sprinkler 16 through the return pipe 15 by the pump 14 so that water can be sprayed on the green 1 at any time, and Water can be replenished into the aquifer 4 through the conduit 15 as needed. Also, the water storage tank 7
The water inside can be cooled or heated by the cooling / heating machine 17. The cooling / heating machine 17
Can be replaced by an ordinary air conditioner, in which case cold air or warm air is sent to the water storage tank 7.

2 and 3 show an example of the structure of the water level adjusting valve 9. The water level adjusting valve 9 is provided in a vertically long bottomed container 18 which is buried with its upper opening facing the surface of the earth. The end of the upstream pipe 8a and the tip of the downstream pipe 8b of the water collection pipe 8 are connected to the bottomed container 18 with a step in the vertical direction, and the water flowing from the aquifer 4 through the upstream pipe 8a is connected. , Once flows into the bottomed container 18 through the water level adjusting valve 9, and then flows into the water storage tank 7 through the downstream pipe 8b. The top opening of the bottomed container 18 can be opened and closed by a lid 19.

At the end of the upstream pipe 8a, the outer cylinder 9a of the water level adjusting valve 9 is provided in the bottomed container 18 with the elbow joint 20.
Vertically connected through. And this outer cylinder 9a
An inner cylinder 9b of the water level adjusting valve 9 is rotatably inserted therein. The outer cylinder 9a is provided with a plurality of holes 21 at different heights and circumferential positions. Further, the inner cylinder 9b is provided with one vertically elongated slit 22 as shown in FIG. 4, and a handle 23 is provided at the upper end.

In the water level adjusting valve 9 thus constructed, the slit 22 of the inner cylinder 9b is provided with any one hole 21 of the outer cylinder 9a.
By communicating with each other, the water that has passed through the upstream pipe 8a is caused to flow into the bottomed container 18 from the hole 21 corresponding to the slit 22. Therefore, the water level in the aquifer 4 is determined by the height of the holes 21 corresponding to the slits 22, and the height can be adjusted stepwise by the plurality of holes 21.

Replenishment of water into the aquifer 4 is carried out by rainwater in case of rain and by water sprinkling from the sprinkler 16, but it is necessary from the water storage tank 7 by driving the pump 14. You can replenish only the amount at any time.
When replenishing from the water storage tank 7, fertilizer or the like can be mixed. In addition, the water in the aquifer 4 can be emptied in case of rain or when the water content on the ground surface is excessive.

While cooling or heating the water in the water storage tank 7 by the cooling / heating machine 17, the water is collected between the water storage tank 7 and the aquifer 4 and the return flow path 15 The temperature of the water in the aquifer 4 can be adjusted by circulating the water through it, and a surface temperature environment suitable for growing grass can be obtained depending on the season. The surface temperature can also be adjusted by sending cold or warm air to the air layer 3.

The green 1 has an air layer 3 to which air is supplied below the sand layer 2 and a water retention layer 4 below which the water level can be arbitrarily adjusted. Since the layer 4 can manage moisture and fertilizer, and the air layer 3 can prevent root rot and disease of the lawn, the lawn can be grown soundly and the disinfectant and bactericide on the green 1 can be prevented. It can be used as little as possible. Air layer 3
The air can also be taken in from the atmosphere by the vertical movement of the water level of the aquifer 4.

Further, by sending ozone to the air layer 3 together with the air, the ground surface can be sterilized from the underground, and at the same time, the water in the aquifer layer 4 can be sterilized. The water flowing into the water storage tank 7 has been filtered and purified in the sand layer 2, the air layer 3, and the water retention layer 4, but can be further effectively purified by aeration by the air from the diffuser 12 and ozone sterilization. By blowing ozone while circulating water as described above to oxidize dissolved substances, pesticides and the like can be decomposed and rendered harmless. If a contact filter medium is arranged in the water storage tank 7, the water purification action will be further enhanced. If necessary, it can be adsorbed and purified with a porous adsorbent such as activated carbon, charcoal or zeolite before flowing into the water storage tank 7 or when discharged from the water storage tank 7 to a river or the like.

Although the above embodiment is an example applied to a golf course green, the present invention is not limited to this and can be applied to surface management in hydroponic cultivation, greenhouse cultivation, etc., and various plants can be grown and managed. Is.

[0021]

The present invention has the following effects. Below the surface of the earth, there is an air layer that is supplied with air, and below that, there is an aquifer that can adjust the water level. Since the root rot and disease of the plant can be prevented, the healthy growth of the plant can be achieved, and the use of disinfectants and fungicides on the ground surface can be minimized.

By circulating water between the aquifer and the water storage tank, the water temperature of the aquifer can be adjusted, and a surface temperature environment suitable for growing plants can be created depending on the season. The surface temperature can also be adjusted by sending cold or warm air to the air layer.

Freezing of the ground surface in winter can be prevented by increasing the water temperature of the aquifer or by sending warm air to the air layer. The dryness and temperature rise of the ground surface in the summer can be controlled by evaporation of water from the aquifer due to capillarity, replenishment of water from the water storage tank to the aquifer, watering from the water storage tank, or lowering the water temperature of the aquifer. Can be prevented.

The water in the water storage tank can be purified by aeration while supplying air to the air layer. By sending ozone to the air layer together with air, the surface of the ground can be sterilized from the underground, and at the same time, the water in the aquifer can be sterilized.

The water flowing into the water storage tank is filtered and purified once in the air layer and the water retention layer, and can be further effectively purified by aeration with air and ozone sterilization, and the water between the water retention layer and the water storage tank can be further purified. By circulating ozone to oxidize dissolved substances by blowing ozone, pesticides can be decomposed and rendered harmless.

When applied to a golf course green, the state of the green grass can be kept constant throughout the year, so the same green can be used all year round, and so-called one green on the same course becomes possible. (No extra green is required) and golf course construction costs and maintenance costs can be saved.

[Brief description of drawings]

FIG. 1 is a schematic view of an embodiment of the present invention applied to a golf course green.

FIG. 2 is a vertical sectional view showing an example of the structure of a water level adjusting valve used in the embodiment.

FIG. 3 is a transverse sectional view of the same.

FIG. 4 is a perspective view of an inner cylinder of the water level adjusting valve.

[Explanation of symbols]

 1 Golf Course Green 2 Sand Layer 3 Air Layer 4 Aquifer 5 Permeable Sheet 6 Impermeable Sheet 7 Water Storage Tank 8 Water Collection Tank 9 Water Level Control Valve 10 Blower (Air Supply Source) 11 Air Supply Pipeline 12 Diffuse Gas 13 Ozone Generator 14 Pump 15 Return pipe 16 Sprinkler 17 Cooling / heating machine

Claims (6)

[Claims] 1. An underground layer such as a golf course green or the like is formed with a stone layer, a filter medium or the like to form an aquifer layer under and around which water is stopped, and the aquifer layer is connected to the outside through a water collection conduit. An air layer connected to a water storage tank, and similarly, on the upper side of the aquifer layer, an air layer on which stones, filter media, etc. are deposited is formed, and the air layer is supplied through an air supply line to supply air to the inside thereof. A ground management facility for golf course greens, etc. 2. A water level adjusting valve for adjusting the water level in the aquifer is provided in the water collecting conduit.
Ground surface management facility for golf course green, etc. 3. A return conduit for returning water in the water storage tank to the water storage layer by a pump is provided between the water storage layer and the water storage tank. Ground surface management facility on the golf course green, etc. 4. The surface management facility for a golf course green or the like according to claim 4, further comprising a cooling / heating machine for cooling or heating water in the water storage tank. 5. A golf course green or the like according to claim 1, wherein air from the air supply source is supplied to the water storage tank through an air supply line to aerate the water in the water storage tank. Surface management facility in. 6. The surface management facility at a golf course green or the like according to claim 1, wherein ozone is sent together with air through the air supply line.