JPS63117780A - Banker of golf green - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention particularly relates to a golf course bunker that is improved so that sand spread on a sloped portion will not be washed away by rainwater.

(Prior Art) Golf course bunkers are usually created by providing a hole 1 in the hairway, filling the hole 1 with sand 2, and leveling the sand, as shown in Figure 3. . However, this makes it impossible to confirm the location of the bunker from a distance, so some holes have the bunker sloped so that it can be seen from a distance, as shown in Figure 4. .

(Problem to be Solved by the Invention) However, if the bunker is formed in an inclined shape, when it rains, rainwater will penetrate the sand 2 and the surface 1a of the foundation of the hole 1.
, and begins to flow to the lower side along the surface 1a of the foundation. In this case, if there is a lot of rainfall, the amount of water flowing on the surface 1a of the foundation will increase, and as a result, the sand 2 will be in a state where it contains rain water many times, and the sand 2, especially on the slope, will flow to the lower side. Collapse. When the sand piled up on the slope part collapses in this way, the sand 2 must be scooped up the slope part to return it to its original state. Moreover, during this work, the base of the hole 1 may get mixed into the sand 2, and there is a risk that the head of the club will hit the pebbles contained in the base and be damaged when hitting a bunker shot.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a bunker for a golf course that can prevent sand from being washed away by rainwater as much as possible.

[Structure of the Invention] (Means for Solving the Problems) The golf course bunker of the present invention is characterized in that a nonwoven fabric is spread in the hole and sand is spread on the nonwoven fabric.

(Function) When it rains, rainwater permeates through the sand and reaches the surface of the foundation of the hole. Rainwater that permeates to the surface of the foundation flows through the nonwoven fabric to the lower level, preventing sand from being washed away by rainwater.

(Example) An example of the present invention will be described below based on FIGS. 1 and 2.

First, in FIG. 1, 11 is a bunker installed near the rough 12, for example, by digging a hole 14 in the hairway 13, laying a non-woven fabric 15 in this hole 14, and then spreading sand 16 on top of this non-woven fabric 15. It was created by laying it down.

In such a bunker 11, a groove 17 is excavated in the lowest part of the hole 14, and a perforated drainage pipe 18 is embedded in this groove 17 together with crushed stone 19. And the base of hole 14 - L
The surface thereof is inclined toward the perforated drain pipe 18, and the slope is particularly steep on the rough 12 side.

The nonwoven fabric 15 is, for example, in the form of a band with a thickness of about 51 cm. As shown in FIG. As shown in FIG. 1, an anchor 20 is driven into the overlapping portion and fixed to the base of the hole 14. In this case, a portion of the nonwoven fabric 15 is exposed outside the hole 14, and the exposed portion is embedded in the grass around the hole 14.

The sand 16 is spread to a thickness of about 15 cm on the nonwoven fabric 15 spread within the hole 14 as described above.

Further, in FIG. 1, 21 is a mound provided between the bunker 11 and the rough 12, and this is for preventing rainwater from flowing into the bunker 1 from the rough 12 side. Of the nonwoven fabric 15 taken out from the hole 4, the portion 15a embedded in the mound 21 is
It is buried so that it goes deeper into the soil as it goes outward (toward the rough 12 side).

'' When it rains in the bunker 11 configured like two legs, rainwater permeates through the sand 16 and the nonwoven fabric 15 and reaches the surface of the foundation. Some of the rainwater that reaches the surface of the foundation soaks into the foundation, but most of the rainwater flows through the nonwoven fabric 15 to the lower side, and finally to the nail hole drainage pipe 18. The fuel flows into the bunker 11 and is discharged to the outside of the bunker 11.

In this way, rainwater permeates through the sand 16 and into the nonwoven fabric 15, and then flows through the nonwoven fabric 15 using the nonwoven fabric 15 as a kind of drainage channel, so that the drainage performance of the sand 16 is improved and the sand 16 is A large amount of rainwater is not contained, and the sand 16 spread on the nonwoven fabric 15 is not washed away by rainwater. Therefore, even if the amount of precipitation is very large, there is no risk that the sand 16 spread on the steeply sloped part on the rough 12 side will collapse under normal amounts of precipitation. In addition, if there is a lot of precipitation, sand 16 on the slope
In this case, it is necessary to scrape the sand 16 up the slope to return it to its original state.
Since the surface of the base soil is covered with the nonwoven fabric 15, there is no risk of the base soil getting mixed into the sand 16 during the work. Furthermore, as in this embodiment, since the nonwoven fabric 15 buried in the mound 21 is folded back so as to penetrate deeper into the soil toward the outside, the water that has seeped into the mound 21 is absorbed from the folded part. The water flows away from the bunker 11 and does not enter the bunker 11.

The present inventor has confirmed through experiments that the present invention has a +1-1:Q effect on preventing the collapse of sand 16. This experiment was conducted using one bunker at the Tomei Country Club in Mizunami City, Gifu Prefecture. This bunker was divided into two sections, one section having the structure of the present invention and the other section having the conventional structure.
Observations were made over a period of 1 year up to 30 mouths per month. The results are shown in the table below. Regarding the above year, the annual precipitation was 2080 mm, the maximum precipitation in one month was 558 birds in 1985 6 no 1, and the maximum daily precipitation was June 30, 1985.
The maximum rainfall per hour was 126 mm per day in 1985.
On August 19, 1985, the rainfall was 41 mm, and the highest number of rainy days in a month was on June 17, 1985.

As is clear from this experimental result, it is understood that the present invention exhibits an excellent effect in preventing the collapse of the sand 16.

[Effects of the Invention] As explained above, the bunker of the present invention has a structure in which a nonwoven fabric is spread in the hole and sand is spread on the nonwoven fabric.
When it rains, rainwater permeates through the sand and flows to the lower side using the nonwoven fabric underneath as a drainage channel. Therefore, the drainage properties of the sand are improved and it does not contain a large amount of rainwater, so even if the sand is laid on a slope, it can be prevented from being washed away by rainwater and collapsing as much as possible. It is effective.

[Brief explanation of the drawing]

1 and 2 are a longitudinal sectional side view and a plan view, respectively, of a bunker showing one embodiment of the present invention, and FIGS.
The figure is a diagram corresponding to FIG. 1 showing different conventional bunkers. In the figure, 11 is a bunker, 12 is a rough, 13 is a hairway, 14 is a hole, 15 is a nonwoven fabric, 16 is sand, and 18 is a water pipe.

Claims (1)

[Claims] 1. In a golf course bunker created by creating a hole in the ground and spreading sand in the hole, a nonwoven fabric is spread in the hole,
A bunker for a golf course, characterized in that the sand is spread on the nonwoven fabric.