JPH0241605B2 - - 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 trench in the dogbashiri area and adding soil to it for planting, or by adding soil to a concrete U-shaped trench 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, a groove in which a gutter block is to be buried is excavated in the vicinity of the contact point between the dog running part 2 and the tail end of the slope 30. When excavating this ditch for burying the side ditch blocks, a continuous ditch is simultaneously excavated so that the bottom surface 8 of the planting base is horizontal or the drainage ditch side is slightly lower.

After excavation, a through hole B is made at the bottom of the slope shoulder side of the side ditch block 3.
, and a water stop plate 4 is installed at both ends of the gutter block in the longitudinal direction, the top of which slopes downward toward the slope end within an angle range of 30° or more and less than 90° so as to touch the bottom surface of the gutter block. Then, along the inclination of the water stop plate, a gutter block with a water collection function made of concrete or steel, etc., with a plate body 5 having a through hole A on one side placed so that the through hole is located on the slope shoulder side, is installed continuously. and bury it. When constructing a partial planting base in the Inuhashiri area 2 or the foot of the slope, use gutter blocks with this drainage function only in areas adjacent to the planting base, and use gutter blocks for normal drainage. It may also be used in conjunction with.

After the gutter blocks are buried, a water-permeable layer 7 is formed by laying sandpaper or palm pine in the groove part excluding the gutter blocks, that is, about 10 to 20 cm below the planting base. Next, soil, organic compost, soil improvement materials, etc. are appropriately mixed and filled on top of it to form a growth base layer 6 for shrubs 1, and after filling with soil, rhododendrons, palm trees, pines, etc. are planted. I'm going to go. Once the planting is complete, use pine trees such as strawberry or shading net to prevent the filled soil from being washed away by rainfall.
The effect of the method of the present invention will be even better if it is stretched over the planting base.

If the present invention is carried out as described above, when it rains, the water flowing down from the slope will flow into the gutter block, and the triangular part formed by the plate having the through hole and the gutter block wall on the foot of the slope will be blocked. As the flow and sewage increases, it flows into the hollow part of the gutter block through the through holes provided on the slope side of the plate, and is stored by the water stop plates provided at both ends of the gutter block, and the water flows into the lower part of the gutter block. Water is supplied to the planting base through the through holes.

The water flowing down the slope is muddy water containing clay and earth due to slope erosion, and the triangular shape formed by the plate with perforations and the gutter block wall on the shoulder side of the slope has a deeper water depth. Because the flow speed is faster, mud and sand are less likely to accumulate inside the gutter blocks.

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 cavities of the gutter blocks.

Incidentally, the rainfall permeates through the planting base 6, reaches the permeable layer and the bottom surface 8 of the planting base, flows into the hollow part of the gutter block through the through hole B at the bottom of the gutter block, and excess water flows through the plate body 5 having the through holes. Because the water flows out from the through hole A, root rot due to excess water will not occur, and during dry periods, water stored in the cavity formed by the gutter block, the plate with the through hole, and the water board will gradually drain away. Since it is supplied to the growing substrate, planted trees no longer wither and die due to dryness.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a planting base constructed by excavating according to the present invention. FIG. 2 is a perspective view of a longitudinal section of a gutter block having a water collection function. FIG. 3 is a cross-sectional view of the central part of a gutter block having a drainage collection function. In the figure, 1 is a tree, 2 is a running section, 3 is a gutter block with drainage collection function, 4 is a water stop plate, 5 is a board with perforations, 6 is a growth base, 7 is a permeable layer, and 8 is a growth The bottom of the base, 9 is the hollow part, 10 is the mat, A,
B is a through hole, and 30 is a slope.

Claims (1)

[Claims] 1. When excavating a trench in the dogbashiri part of the slope to create a tree planting base, the lower part of the slope shoulder side of the gutter block, which has a roughly U-shaped end surface, is placed near the point of contact between the dogbashiri part and the foot of the slope. A through hole is provided at both ends of the gutter block in the longitudinal direction, and the gutter block is lowered toward the slope end 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 gutter block. A gutter block with a drain collection function is equipped with a water stop plate with an inclined top, and a plate body with a through hole on one side along the slope of the water stop plate is placed so that the through hole is located on the shoulder side. installed,
A method for creating a base for planting trees, characterized by adding soil and planting in a groove part excluding the gutter blocks.