JPH0786239B2 - Recycling and storage method of pesticide sprayed water on golf course green and its underground structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to pesticide application in the case where a large amount of pesticide is sprayed, fertilized and irrigated frequently for the purpose of lawn management such as golf course greens and a large amount of water is required. The present invention relates to a method for recycle and storage of pesticide sprayed water on a golf course green and its underground structure, which enables a large amount of water containing the above to be recycled without flowing out of the golf course facility.

[0002]

2. Description of the Related Art Recently, pollution of golf courses has been taken up as a social problem, and large-scale land shape changes and tree felling at the time of construction have become a factor in the destruction of the natural environment. It has been accused of the large amount of pesticide spraying that causes environmental pollution on golf courses, and there is a particular need for a technical solution to the problem of water pollution caused by the use of pesticides on golf courses.

Conventionally, in order to solve the environmental pollution caused by the spraying of pesticides, for example, the use of pesticides is limited, the use of pesticides is stopped at all, or only a small amount of spray is required.
Regarding research using Washiba that is compatible with the climate and securing a large amount of water necessary for lawn management, improving the structure of the green, for example, in order to withstand severe treading, excess water is used as much as possible. Adopting means to expedite promptly and prevent soil from solidifying.On the other hand, in the dry season, which is the opposite of these, a irrigation device was installed to prevent extreme drainage, and drainage was prevented. . However, in the current land conditions, there is a limit to the supply of rainwater and groundwater, and it is difficult to always secure the necessary amount of water when necessary, which reduces the amount of earthwork during construction and the problem of environmental purification. was there.

[0004]

Therefore, the present invention is capable of constructing a green portion of a golf course without being restricted by the groundwater level of the construction site and constructing a conventional green embankment layer. As a means to reduce the load on the embankment, a lightweight material such as expanded polystyrene is used as a structural material, and a large amount of irrigation water containing pesticide and fertilizer applied to the green is quickly transmitted. A green underground structure that incorporates a permeation layer such as the above is used as the water storage tank, and the irrigation of pesticide solution etc. applied to the green is collected in the underground water storage tank and irrigated again. By reusing it with equipment, and by constructing a green underground structure incorporating lightweight materials such as expanded polystyrene, it is possible to reduce construction costs, shorten construction period, and improve construction efficiency. Those that were created as object to provide a subsurface structure by recycling of such pesticides water golf green can be simplified in structure and.

[0005]

In order to achieve the above object, the present invention forms a waterproof layer such as an impermeable sheet on the surface of a predetermined ground, and a molding block made of expanded polystyrene or the like on the top of the waterproof layer. A lightweight block structure layer is formed by combining and stacking the gaps in a water storage tank, and a drainage layer made of water-permeable expanded polystyrene is laid inside and above the lightweight block structure layer. As a stratum, the soil water collected from the drainage layer is stored in a water storage tank, and this storage water is extracted and reused as irrigation water. In order to carry out the method, a waterproof layer such as an impermeable sheet is formed on the surface of the specified ground, and a molding block made of expanded polystyrene is combined and stacked on top of it. A light-weight block structure layer with the gap formed in the water storage tank was provided, and a drainage layer made of water-permeable expanded polystyrene was laid inside and above the light-weight block structure layer, and the entire upper layer was made a green underlayer. It is related to the underground structure for recycle water such as spraying agricultural chemicals on the golf course green.

[0006]

The present invention provides a pesticide for golf course greens because of the method and the underground structure having the above characteristics.
The irrigation water including fertilization, sprinkler, surplus water such as natural precipitation, etc. has a pore volume of 30% of the drainage layer formed of permeable expanded polystyrene incorporated in the lightweight block structure layer as a green underground structure. By effectively utilizing the drainage function, water can be collected and stored in the water storage tank provided in the lightweight block structure layer. Since this stored water can be taken out by a pump or the like and reused as irrigation water, water containing agricultural chemicals does not flow out of the golf course facility and there is no risk of water pollution due to the use of agricultural chemicals.

Further, the present invention is a drainage tank having a light-weight block structure layer in which a green underground structure is made of a lightweight material such as expanded polystyrene having a unit volume and a light weight, and a gap between the materials is formed in a water storage tank and having a large pore volume and excellent water permeability. As a result, it is possible to drastically reduce the embankment load in the green formation and reduce the earth pressure, water pressure, top load, etc. on the embankment structure.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the plane arrangement of the present invention,
2 is a sectional view of the first embodiment, FIG. 3 is a sectional view of another embodiment, and FIG. 4 is a sectional view of a main part.

In the figure, reference numeral 1 as a whole is a waterproof layer covering and laying on the entire surface of the existing shaped ground G, which is an impermeable synthetic resin sheet or rubber 1a and asphalt material. It is formed from 1b.

Reference numeral 2 is a lightweight block structure layer constructed on the waterproof layer 1, and is formed by combining and stacking an inorganic foaming material such as expanded polystyrene so as to fit the cross-sectional shape of the ground ground G to be constructed. Appropriately bond the joint surface with an adhesive or asphalt to form a model.

In the embodiment shown in the drawings, the lightweight block structure layer 2 is constructed by stacking blocks, each of which is obtained by molding a foamed polystyrene material into a cubic shape and having a required size and shape, and joining the blocks vertically and horizontally. Although shown, the shape is not limited to a cube, and may be another square or trapezoid.

The expanded polystyrene material forming the light-weight block structure layer 2 has low foaming or high foaming considering the pressure resistance and strength of the material in accordance with the cross-sectional shape and load of the green embankment structure to be implemented. , Particle size, physical properties, resistance, pressure, etc. are selected as appropriate.

Reference numeral 3 is a large number of water storage tanks arranged in the gaps of the lightweight block structure layer 2.

In the figure, this water storage tank 3 is a rectangular parallelepiped unit block pillar 2 which constitutes a lightweight block structure layer 2.
Although formed by being divided by a, 2a, ..., The cross section of the single block column 2a can be freely set to be square or circular.

Reference numeral 4 is a drainage layer made of a water-permeable expanded polystyrene laid on the substantially middle portion 4a and the upper portion 4b of the lightweight block structure layer 2 and obtained by solidifying expanded polystyrene foam particles with a special adhesive. With continuous pore volume of about 30%, it has a stable drainage function for a long period of time, and has a permeability coefficient equivalent to that of small gravel with a particle size (mm) of 1.0 to 5.0.

The water-permeable expanded polystyrene, which is a constituent member of the drainage layer 4, is excellent in water permeability due to the pores in the body, is not easily clogged, and is a drainage layer in terms of pressure resistance and heat insulation. Drainage effect is effective.

In the drawing, the drainage layer 4 is laid in one layer in the middle portion 4a and two layers in the upper portion 4b of the lightweight block structure layer 2. However, the drainage layer 4 can be set as desired.

Reference numeral 5 is a green underlayer which is formed so as to cover the surface of the drainage layer 4 laid on the layer upper portion 4b, and includes a green grass, a top layer for holding a cup and a soil layer. It constitutes the foundation layer for turf cultivation.

In the figure, reference numeral 6 is a pump for pumping, and a piping system is constituted by the intake pipe 7 and the like connected to the water storage tank 3 so that the water in the water storage tank 3 can be reused. Reference numeral 8 is a putting green, 9 is a green color portion, 10 is a fairway, 11 is a bunker, 12 is a groundwater level, and 13 is a manhole.

In FIG. 2, an embodiment different from that of FIG. 1 is shown. That is, in the first embodiment, an example is shown in which the groundwater level of the ground ground G at the green set formation position is low as shown in the drawing, but in FIG. 2, an example in which the groundwater level is high is shown. Is shown. In this case, the waterproof layer 1 covering and laying on the entire surface of the ground ground G is a heavy structure made of reinforced concrete, and is constructed corresponding to the change of the groundwater level.

[0022]

As described above, according to the present invention,
Agricultural chemicals for golf course greens, irrigation including fertilization,
Extra water such as sprinklers and natural precipitation has a pore volume of 30 in the drainage layer formed of permeable expanded polystyrene incorporated into the lightweight block structure layer as a green underground structure.
%, The drainage function can be effectively used to collect and store water in the water storage tank provided in the lightweight block structure layer. Since this stored water can be taken out by a pump or the like and reused as irrigation water, water containing agricultural chemicals does not flow out of the golf course facility and there is no risk of water pollution due to the use of agricultural chemicals.

Further, the present invention is a drainage tank having a light weight block structure layer in which a green underground structure is made of a light-weight material such as expanded polystyrene having a unit volume and a light weight, and a gap between the two is formed in a water storage tank, and having a large pore volume and excellent water permeability. As a result, the embankment load in the green formation can be drastically reduced, and excellent effects such as reduction of the earth pressure, water pressure, top load, etc. on the embankment structure can be expected.

[Brief description of drawings]

FIG. 1 is a plan layout view of an embodiment of the present invention.

FIG. 2 is a sectional view of the first embodiment of the present invention.

FIG. 3 is a sectional view of a second embodiment of the present invention.

FIG. 4 is a sectional view of an essential part of the present invention.

[Explanation of symbols]

 G Ground 1 Ground layer 1 Light-weight block structure layer 3 Water storage tank 4 Drainage layer 5 Green ground layer 6 Pumping pump 7 Intake pipe 8 Putting green 9 Green collar area 10 Fairway 11 Bunker 12 Groundwater level 13 Manhole

Claims (2)

[Claims] 1. A lightweight structure in which a waterproof layer made of a water impermeable sheet or the like is formed on the surface of a predetermined ground, and a molding block made of expanded polystyrene or the like is combined and stacked on top of the waterproof layer to form a gap in a water storage tank. A block structure layer is provided, and a drainage layer made of water-permeable expanded polystyrene is laid inside and above the lightweight block structure layer, and the entire upper layer is a green underlayer, and the soil water collected from the drainage layer is stored. A method of storing water for recycling such as pesticide sprayed water on a golf course green, which is characterized by storing water in a tank, extracting this water and reusing it as irrigation water. 2. A lightweight structure in which a waterproof layer made of an impermeable sheet or the like is formed on the surface of a predetermined ground, and a molding block made of expanded polystyrene or the like is combined and stacked on top of the waterproof layer to form a gap in a water storage tank. A golf course green pesticide spraying characterized by providing a block structure layer, laying a drainage layer made of water-permeable expanded polystyrene inside and above the lightweight block structure layer, and using the entire upper layer as a green underlayer Recyclable use of water, etc. Storage underground structure.