JPH0241606B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for creating a base for planting shrubs on a slope, and is particularly effective on hard slopes where it is difficult to plant trees.

In the past, attempts have been made to improve the landscape of slopes, especially on slopes where it is difficult to green, such as mortar-sprayed slopes and rock slopes, by effectively utilizing the dogbashiri area to plant shrubs. These methods are carried out by simply digging a hole or a trench in the dogbashiri area and adding soil to it for planting, or by adding soil to a concrete U-shaped trench block and planting the plants.

The above method has an excellent idea in that it attempts to grow plants by effectively utilizing the dog run area, but
Because the ground that forms the Inuhashiri area is impermeable hard soil or rock, rainwater flows into holes or grooves during rainy seasons and becomes excess water, causing root rot, and during dry seasons, water leaks from the ground. Plants often withered and died due to lack of water supply.

The present invention was invented by focusing on the problems of root rot due to excessive water and death due to dryness in the conventional planting methods described above. The purpose is to provide a method to maintain a hydrated state.

The configuration of the present invention will be explained below based on the drawings.

FIG. 1 is a sectional view showing an embodiment of the present invention,
To explain this, first, a through hole B is provided in the lower part of the slope shoulder side of the U-shaped groove block 3 near the contact point between the dog running part 2 and the slope end part, and at both ends of the U-shaped groove block in the longitudinal direction. A water stop plate 4 is attached to the bottom surface of the U-shaped groove block, the top of which is sloped downward toward the bottom of the slope within an angle range of 30° or more and less than 90°, and the water stop plate 4 is installed along the slope of the water stop plate. A U-shaped groove block 3 having a water collection function and made of concrete or steel is installed, in which a plate 5 having a through hole A on one side is placed so that the through hole is located on the shoulder side.

Next, the space 11 created between the U-shaped groove block wall and the slope is filled with earth and sand or concrete.

On the other hand, an L-shaped board 9 made of concrete or steel is installed on the slope shoulder side of the dog run section at an appropriate distance from the U-shaped groove block, with the retaining part facing toward the slope slope side.
The anchor pin 10 is driven into the retaining part and fixed.

Once these are completed, a water-permeable layer 7 is formed by laying lint or palm pine in the space formed by the U-shaped groove block wall and the L-shaped board, that is, about 10 to 20 cm below the planting base.

Next, soil, organic compost, soil improvement materials, etc. are appropriately mixed on top of the soil to form a growth base 6 for shrubs 1, and rhododendrons, palms, pines, etc. are planted thereon. Once the planting is completed, the effect of the method of the present invention will be even better if a pine tree 8, such as a strawberry or a shading net, is stretched over the planting base to prevent the filled soil etc. from being washed away by rainfall. Become.

If the present invention is implemented as described above, when it rains, water flowing down from the slope will flow into the U-shaped groove block, which will be formed by the plate having the through hole and the U-shaped groove block wall on the slope end side. When the flowing water increases, it flows into the hollow part of the U-shaped groove block through the through hole provided on the shoulder side of the plate, and flows into the water stop plates provided at both ends of the U-shaped groove block. Water is thus stored and supplied to the planting base through the through hole at the bottom of the U-shaped groove block. The water flowing down the slope is muddy water containing clay and sand due to slope erosion, and the triangular shape formed by the plate with perforations and the U-shaped groove block wall on the shoulder side of the slope indicates the depth of the flowing water. As the depth increases, the flow speed increases, making it difficult for mud and sand to accumulate inside the U-shaped groove block.

In addition, since the through holes in the plate are located at the upper part of the slope shoulder side, muddy clean water is taken in, making it difficult for earth and sand to accumulate in the hollow part of the U-shaped groove block.

In addition, rainfall permeates through the planting base 6, reaches the permeable layer and the bottom of the planting base, and flows into the hollow part of the U-shaped groove block from the through hole B at the bottom of the U-shaped groove block, and excess water has a through hole. Root rot due to excess water will not occur because it flows out from the through hole A of the plate 5, and during the dry season, water is stored in the cavity formed by the U-shaped groove block, the plate with the through hole, and the water stop plate. Since the water is gradually supplied to the growing substrate, the planted trees no longer die due to dryness.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the planting base of the present invention. FIG. 2 is a perspective view of a longitudinal section of a U-shaped groove block having a drainage collection function. FIG. 3 is a cross-sectional view of the central part of a U-shaped groove block having a drainage collection function. In the figure, 1 is a shrub, 2 is a dogbashiri part, 3 is a U-shaped groove block with drainage collection function, 4 is a water stop plate, 5 is a board with a through hole, 6 is a growth base, 7 is a permeable layer, 8
is a mat, 9 is an L-shaped board, 10 is an anchor pin, 1
1 is a cavity, A and B are through holes, and 30 is a slope.

Claims (1)

[Claims] 1. When constructing a tree planting base on the dogbashiri part of the slope, a through hole is provided at the bottom of the slope shoulder side of the U-shaped groove block near the contact point of the slope end, and the longitudinal length of the U-shaped groove block is A water stop plate is installed at both ends of the U-shaped groove block, the top of which slopes downward toward the foot of the slope within an angle range of 30° or more and less than 90° so as to touch the bottom surface surrounded by both side plates of the U-shaped groove block. A U-shaped groove block with a water collection function is installed along the slope of the water stop plate, with a plate with a through hole on one side placed so that the hole is located on the slope shoulder side. The space created between the slopes is filled with earth and sand or concrete, and then an L-shaped board is installed on the slope shoulder side of the dogbashiri section at an appropriate distance from the U-shaped ditch block, and the U-shaped ditch block wall and L-shaped board are installed. A method for creating a tree planting base, characterized by adding soil and planting in a space formed by a board.