JPS61162603A - Construction of green soil - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention particularly relates to the cultivation of green lawns at golf courses and a method for preparing green soil for maintaining good growth conditions.

[Conventional technology]

Green soil can be roughly divided into those that are mainly soil, those that are mainly sandy, and those that use a combination of soil and sand. In each case, drainage was through simple drain pipes buried in the ground.

[Problem that the invention seeks to solve]

Among the above-mentioned conventional techniques, depending mainly on the soil quality...
In general, water permeability is insufficient, but after water permeation, the water retention capacity becomes too good, that is, there is too much water, and as a result, diseases and damage occur easily. Drainage systems that use soil and sand have good water permeability, but drainage is too good, lacking water retention capacity and drying out too much. Drainage pipes are usually buried in the ground, but due to differences in soil quality, they lack adequate drainage or water retention.

[Means and actions for solving the problem] A process of excavating the ground to create a base parallel to the ground surface, and connecting to the drain management groove or grooves on the base and the drain pipe. After creating a recess for branch management installation approximately along the contour line, a water-permeable sheet is laid over the entire surface of the base, an impermeable sheet is further laid in the management groove, and a drain pipe or In the surface treatment process of the base, an impermeable large and medium-sized tape is stretched across the branch pipes, and an impermeable sheet is stretched around the periphery of the base and low areas, and a drain pipe or pipe is installed in the management groove. A branch pipe is installed horizontally, and the slope of this branch pipe is approximately 1.
%, install more branch pipes in lowlands, install branch pipes horizontally around the periphery of the foundation, connect one end of the drain pipe to the water collection basin, and pile up sand and bed soil in a specified column shape. A method for creating green soil characterized by comprising steps, which can appropriately drain excess moisture in the soil and uniformly retain moisture in the soil.

〔Example〕

Figure 1 is a conceptual plan view, Figures 2 and 3 are the same as above.
In the detailed cross-sectional views taken along line and ) The board B in this example is ±0 in FIG.
+20 from the point. +40, +60. It is built in a diagonal shape with height differences similar to the +70 contour line.

Reference numeral 1 indicates a single or plural water absorption drain pipes, and 2 indicates a number of branch pipes (also for water absorption) branched from the drain pipe 1, each of which is a nonwoven fabric pipe having a water absorption function (for example,
Made of long polyester fibers), it is made to the desired diameter. (For example, the drain pipe has a diameter of 50 mm and a branch pipe has a fin diameter of 30 mm.) Then, the drain pipe 1 and the branch pipe 2 are arranged in the grooves Bl and B2 provided in the base B, respectively, via the means described later. However, the intervals between the branch pipes 2 are set to be large, medium or small depending on the height difference of the base B.

In other words, the spacing is made small at low points and gradually increases as the distances reach higher points. Further, a water collection basin 3 of approximately 300 x 300 x 300 cm is provided at the base of the drain pipe 1, and a drain pipe 4 is connected to this water collection basin 3.

5 is a water-permeable sheet, 6 is a water-impermeable sheet, and the water-permeable sheet 5 is, for example, a nonwoven fabric made of polyester long fibers, and has a water permeability of cs/(6) to 3.0×10. For example, a polyethylene sheet is used as the sheet 6. Then, the water-permeable sheet 5 has the above-mentioned groove B.
T-B! The water-impermeable sheet 6 is stretched over the carefully rising surface of the base B including the top, and the water-impermeable sheet 6 is stretched on the outside of the water-permeable sheet 5 at the edge portion of the base B and the groove B1.

7 is 80-90% Oarai sand with a particle size of 0.25-0.70%
It shows the sand layer containing the soil, and is placed throughout the base B. Note that 8 indicates a lawn. Although not shown, sprinklers for watering are appropriately installed.

Reference numeral 9 denotes a water-impermeable tape, which is stretched across the drain pipe 1 or the branch pipe 2.

In addition, in the base B, there is a low place where water tends to accumulate particularly, that is, a symbol B3.
An impermeable sheet 6 is placed in the area shown by , and all water is drained away through the drain pipe 1 and branch pipe 2 so that the grass located in the low place is not adversely affected by excess water. Sometimes I try to do that.

If the ridge is constructed as in the embodiment, the following effects can be obtained.

a) With the drain pipe 1 and branch pipe 2 having a water absorption function, appropriate water retention and drainage functions can be obtained even in sandy greens, and therefore, damage from dryness and damage from diseases can be prevented.

b) The drain pipe 1 and the branch pipe 2 allow uniform drainage of water on the base B, which has height differences.

C) By stretching the water-permeable sheet 5, mixing of sand and bed soil can be prevented.

d) The base B can be stably held by the water-permeable sheet 5.

e) The water-impermeable sheet 6 can prevent unnecessary drainage of water.

f) The water-impermeable thick tape 9 that crosses the drain pipe 1 or the branch pipe 2 can provide a concentrated function.

〔Effect of the invention〕

According to the method of the present invention, appropriate water retention and drainage functions can be obtained even in sandy greens using the drain pipe and branch pipes, and therefore, dryness damage and disease damage can be prevented, and
Furthermore, by providing a water-permeable sheet, it is possible to prevent the sand from mixing with the soil, and at the same time, it is possible to stably hold the foundation.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a conceptual plan view, and FIGS. 2 and 3 are detailed sectional views taken along the line nn and -■. G...Ground, B...Base, Bl, B2...Groove,■
...Drain pipe, 2... Branch pipe, 5... Permeable sheet, sand layer.

Claims (1)

[Claims] The process of excavating the ground and creating a foundation parallel to the ground surface;
After providing one or more grooves for drain management installation and grooves for branch management installation connected to the drain pipe approximately along the contour lines on the base, a water-permeable sheet is laid over the entire surface of the base, and An impermeable sheet will be laid in the management facility groove, and a wide impermeable tape will be stretched across the drain pipe or branch pipe, and impermeable material will be placed around the periphery of the foundation and in low-lying areas. In the surface treatment process of the base on which the adhesive sheet is stretched, drain pipes or branch pipes are installed horizontally in the management groove, the slope of this branch pipe is approximately 1% or less, and the number of branch pipes is reduced in low-lying areas. many,
The method for creating green soil is characterized by comprising a piping process in which branch pipes are installed horizontally around the periphery of the base and one end of the drain pipe is connected to a water collection basin, and a process in which sand and bed soil are piled up in a predetermined column shape.