JPS6122082B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for creating a vegetation surface such as a lawn in a golf course or the like.

[Conventional technology]

Conventionally, this type of method for preparing the surface of vegetation such as lawns involves placing crushed stones on a cut-formed foundation, filling soil with a mixture of coarse sand, soil, etc. on top of it, and then placing a layer of soil on top of it. A mixed soil type construction method using soil or laying a drainage pipe horizontally on a cut-and-formed foundation can cause problems.
It is necessary to pile up in the order of coarse sand, and the ratio of the particle diameter of Jiyari and coarse sand is 1: Jiyari 7, and then pile up a mixture of sand and soil improvement material on top of it. Methods of construction are known.

[Problem to be solved by the invention]

Each of the conventional construction methods has its advantages and disadvantages, and most of their shortcomings are compensated for by each other, but even objects created using any of these methods may dry out due to lack of water content during high-temperature drying in summer. It is easy to inhibit the growth of grass, etc., and it is difficult to grow a uniform green on the land created using either of these methods. The problem is that fertilizer management is difficult.

[Purpose of the invention]

The present invention has been made in view of and to solve the problems of the prior art, and it is possible to easily and quickly create the surface of vegetation such as lawns for golf courses, etc., and to manage the fertilization of the lawn after construction. The purpose of this study is to provide a method for creating a vegetation surface in an appropriate manner.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be sequentially described below with reference to illustrative embodiments.

The figure is a longitudinal cross-sectional view of a golf course green created by the method of creating grass and other vegetation surfaces of the present invention on a ground surface having an appropriate slope or undulation. The golf course green preparation method in this case is as follows.

In the first step, a ground surface H' having an inclination or undulation is excavated to a predetermined depth D to form a base surface B' whose longitudinal section is approximately parallel to the ground surface'.

The depth D is preferably about 50 cm below the ground surface, that is, the green surface. For example, when the green surface has an uneven surface (undulation) that locally waves, the base surface B after excavation is created approximately on the same plane as the undulation of the green surface. Excavation will be carried out using bulldozers, components, etc., and the excavated soil will be transported to the designated area by vehicles. The foundation will be leveled using bulldozers, etc.

In the second step, partition plates 9 are erected in steps along a plurality of contour lines on the base surface B' formed in the previous step.

The partition plate 9 is a board approximately 40 cm wide and approximately 50 m long, cut to a length suitable for the site, and erected vertically in the width direction. A bulge 9a having an arcuate longitudinal section is formed at the upper edge of the partition plate 9. The bulge 9
Due to a, even if the sheet 2 is laid down on the partition plate 9, the sheet 2 will not be cut. Further, by providing the bulging portion 9a, the partition plate 9 will not be damaged even if a bulldozer or a vehicle presses it during soil removal work.

In the third step, a water-impermeable sheet 2 is laid over the entire surface of the base surface B' on which the partition plates 9 were erected in a stepped manner in the previous step. The sheet 2 is often made of polyethylene or vinyl.

In the fourth step, the sheet 2 is placed on the surface of the sheet 2 at the portion where the lower end facing upstream and the base surface B' intersect with the lower end facing upstream of each partition plate 9 on which the sheet 2 was laid in the previous step, that is, the partition plate 9
A water collection pipe 4 with small holes is arranged at a low position of the sloped part divided by , and its one end 4a faces a pit 5 for water collection and water level adjustment. The pit 5 is installed on one or both sides of the partition plate 9 and is constructed of concrete.

A plug 6 is attached to one end 4a of the water collecting pipe 4 in the pit 5, and a vertical pipe 7 is erected from the plug 6. The vertical pipe 7 is provided with a plurality of opening and closing holes (not shown) above and below in order to adjust the groundwater level. The water collection pipe 4 is often flexible.

In the fifth step, sand 8 of a predetermined grain size is piled up on the base surface B on which the sheet 2 was laid in the previous step and on which the water collection pipe 4 was arranged.

It has been found that the suitable particle size of sand is in the range of 0.063 to 1.000 mm in diameter, and that if sand outside this range is used, water reuse and stability (capillary water utilization) will be poor.

This sand layer is formed to a depth approximately equal to the depth excavated in the first step.

In the sixth step, on top of the sand 8 piled up in the previous step, topsoil for vegetation (topmics) 10, which is a soil improvement material consisting of sand, water-retaining organic matter, and fertilizer-retaining clay mineral material, is applied so that it is almost level with the original ground surface. Layered. As described above, according to the construction method for creating a surface of vegetation such as a lawn of the present invention, partition plates are erected in steps along a plurality of contour lines on the base surface at a certain depth from the ground surface to divide the area into sections. After laying a water-impermeable sheet,
A water collection pipe is installed horizontally, and on top of it, sand with a particle size within the range that allows effective use of capillary action is selected and piled up to a predetermined depth, and a layer of soil improvement material is placed on top of it along the ground surface. As a result, it is possible to create a ground that can uniformly control soil moisture, which is an essential condition for plant growth, regardless of the slope, undulation, flatness, etc. of the ground surface.

In addition, in grounds constructed using this method of creating the surface of vegetation such as lawns, moisture is artificially controlled and fertilization is also controlled, which streamlines the management of fertilization for plants growing on the ground surface in terms of cost and labor. can.

Moreover, this method of creating the surface of vegetation such as a lawn itself speeds up the completion of the construction work and makes the condition of the ground and the vegetation on the ground beautiful after the construction is completed.

The method of creating a surface of vegetation such as a lawn according to the present invention can be used to create a tough green or playing ground for a golf course, create a lawn for competitions, improve land that is unsuitable for plant growth such as sandy soil, wetlands, and poor soil. Artificial ground/
It can be used in a wide range of fields, such as creating lawns, flower beds, etc.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of an embodiment of a ground created by the method for creating a surface of grass or other vegetation according to the present invention, and FIG. 2 is a vertical cross-sectional view along a water collection pipe. 1...Protrusion portion (slanted portion), 2...Sheet, 4
... Water collection pipe, 5 ... Pit, 6 ... Plug, 7 ...
... Vertical pipe, 8 ... Sand, 9 ... Partition plate, 10 ... Topsoil.

Claims (1)

[Claims] 1. By erecting partition plates along multiple contour lines in the base excavated parallel to the sloping ground surface, multiple sloped sections for water collection are formed in a step-like manner, and the entire surface of the excavated hole including the base is After laying an impermeable sheet and installing water collection pipes with one end connected to a pit for water collection and water level adjustment at each low point of the sloped part divided by each partition plate, the entire surface was placed on the foundation. A method for creating a surface of vegetation such as a lawn, characterized by piling up appropriate particles of sand on top of the soil, and further providing a topsoil layer made of a soil improving material.