JPS6037252B2 - How to plant grass on slopes during civil engineering work - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for edging grass in a pail to prevent collapse of slopes on the sides of roads excavated during road construction and slopes of tree-grown slopes on mountains.

Conventionally, various methods have been used to prevent the slopes from collapsing, such as stacking blocks, building stone walls, spraying mortar, and building dams, but all of these methods seriously damage the natural appearance of the slopes. Many people are beginning to adopt the method of planting grass to cover slopes, etc. with natural greenery after construction work, but as shown in Fig.
A curing material made of fiber material is added for the purpose of retaining water and heat outside of the seed fertilizer, and the mixing solution 2 mixed with water is sprayed into the hole 1 and its vicinity to grow the grass. By letting it hang down, it covered the entire structure and prevented it from collapsing due to frost heaving in winter or heavy rain. (Tokuko 1977
However, simply forming holes or grooves (see Utility Model Publication No. 48-11444) does not loosen the surrounding area, so it is no different from growing grass in a flower pot. Roots propagate only through weathered and softened surfaces, so they are very slow to grow, causing the grass to die two to three years after construction is completed, resulting in frost heaving and collapse, even in small areas. There was a major flaw in that, starting from that point, the surrounding areas were branching out one after another.

An object of the present invention is to provide a method for planting grass on a slope in civil engineering work, which solves the problems inherent in these conventional techniques.

The present invention is a creation of a technical idea that reasonably achieves this objective.

Below, the first embodiment of the method embodying the method of the present invention will be explained with reference to FIGS. pick 3
While applying vibration, insert the pick 3 by 15 to 30 cm (preferably about 20 cm), and loosen the pick 3 into a circular shape as shown by the two-dot chain line in FIG. In this case, if the rock drill is rotated so as to perform a grinding motion, the slack portion can be formed more effectively. This operation is continuously performed in the horizontal direction of the slope to form a band-shaped slack portion 4. After forming several stages of band-shaped loose parts 4 vertically and parallel to the slope, a nozzle is inserted into the loose parts 4 and fertilizer or organic matter is liquefied through the nozzle and pressurized with a special pump. The fertilizer or organic substance is injected into the slack portion 4 to penetrate into the numerous gaps formed in the slack portion 4.

This operation is performed at many locations in the loosened portion 4 to improve soil fertility in the entire loosened portion 4. Next, a kneading agent 5 made by dissolving lawn seeds, fibers, and a curing agent (for example, an amino resin adhesive, a type of caking agent that prevents it from washing away in the rain after sowing) is added to the mixture. The vegetation work is completed by spraying the kneading agent 5 onto the surface of the slack portion 4 formed on the slope from a nozzle using a pump at a pressure of about 4k9/ground to form a film layer of the kneading agent 5. In this way, the vegetation work is completed, and the grass will eventually grow and grow, but the present invention removes the loose parts 4 by inserting it into a pick attached to a rock drill or the like against the slope while applying vibration. As a result, countless slits are created between the soil particles deep throughout the loosened part 4, and the grass roots that have grown into the slits do not invade and grow only on the surface, but are firm and deep and wide. The beams and roots of the grass intertwine with each other, preventing collapse due to frost heaving or heavy rain, and creating a natural-looking slope that is stable and covered with greenery for many years.

Further, in the present invention, fertilizer or organic matter dissolved in a liquid form is injected into the slack portion 4 through a nozzle, so that the soil on the slope can be improved to be fertile to suit the lawn. Therefore, the lawn can be grown robustly and reliably without growing or dying due to lack of nutrients.

Further, since the loose portion 4 is band-shaped and is formed continuously on the slope surface without any breaks, the slope surface can be further prevented from collapsing due to the sod.

Note that the present invention can also be embodied in the following embodiments. {i) In the embodiment described above, fertilizer or organic matter was dissolved and liquefied and injected into the loosened part 4 through a nozzle, but a neutralizing agent (coal in the case of acidic soil) may also be mixed in. .

If this is done, it will be possible to deeply neutralize and improve the soil that is biased towards sulfur and other acidic/alkaline properties, thus ensuring that the roots of the grass will grow deep and will reliably grow without dying. Become something.

However, if you just sprinkled the neutralizer on acidic soil, it would only neutralize the surface, so the roots of the lawn would not grow deep and would die. {o} In the embodiment described above, fiber was added to the thickening agent 5, but this may be omitted.

In this case, hire a nurse. Furthermore, add a curing agent to the kneading liquid 5. (1) In the embodiment described above, the moat agent 5 is sprayed over the entire loosened portion 4, but this should be done in the hole of the pick 3 that is created when the loosened portion 4 is formed.

0 In the embodiment described above, lawn seeds were mixed into the moat agent 5, but instead of this, seeds of mugwort, iris, and staghorn may be mixed.

■ In the embodiment described above, the loose portion 4 was formed using a rock drill equipped with four picks 3;
To be formed by a rock drill equipped with ~3 or 5 or more picks 3.

H In the embodiment described above, the slack portion 4 is formed parallel and horizontal to the slope as shown in FIG. to do or to form in various ways. As detailed above, ``the present invention is capable of forming loose areas on a slope in the same way as a rock drill, and injecting fertilizer or organic matter into the loose areas. By allowing the grass to grow on the slope, it becomes loose and fertile, allowing the roots of the grass to grow deep and wide on the slope. Therefore, the grass can be reliably vegetated on the slope without dying. Since it has the effect of preventing slopes from collapsing, it is a preferred invention as a method for directly attaching grass to slopes in civil engineering work.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a loosened part in the first embodiment of the method of the present invention; Fig. 2 is a schematic front view showing a pick and the range of the loosened part formed by the pick; Fig. 4 is an enlarged vertical cross-sectional view showing a state in which the crosstalk agent has been sprayed, and a vertical cross-sectional view schematically showing the conventional method of growing grass. Figure 1 *2
Figure 4Figure 3

Claims (1)

[Scope of Claims] 1. A pick attached to a rock drill or the like is inserted into a slope while vibrating to form a loose part, and fertilizer or an organic substance is injected into the same loosened part. A method for planting turf on a slope in civil engineering work, which is characterized by sowing seeds and planting grass on a slope. 2. The patent claims that sowing is carried out by spraying a kneading agent made by dissolving lawn seeds, fiber, and a curing agent such as an amino adhesive in water from a nozzle onto the loose parts of the slope. A method of planting grass on a slope in civil engineering work as described in Scope 1.