JPS6030723A - Greens-planting work for slope - Google Patents

Abstract

PURPOSE:To attain greens-planting work on completely all surface of slope and even smooth surface of rocky slope by a method in which a mat is covered on the surface of sloped ground, a net is further covered on the mat, and soil containing seeds is sprayed onto the net. CONSTITUTION:Natural fibers of coconut husk are needle-punched and hardened with an adhesive to form a mat 2. The mat 2 is laid on a slope 1, and a pressing net 3, e.g., wire latch, etc., is made to cover the mat 2 and fixed with anchor pins 4. When soil 7 containing seeds 5 is sprayed onto the net 3, the soil 7 is fixed in the aperture and surface of the mat 2, thereby preventing the flowing- out and falling of the soil 7. The growth of the seeds 5 can thus be completely attained and uniform greens-planting work on whole of the surface of the slope can be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a cloak with water-retaining, heat-retaining, and water-absorbing properties to prevent the collapse of sloped surfaces and to promote vegetation. i, set up,
This relates to a slope greening method that involves covering the slope with a holding net to prevent collapse and spraying soil containing various seeds.

In this specification, the term "sloped surface" refers to a gentle slope, a steep slope,
It is used as a concept that also includes cliffs, etc.

Recently, there have been many accidents and disasters caused by landslides and landslides caused by heavy rains, etc., and safety measures to prevent slope collapses and prevent landslides even in the event of heavy rains are being loudly called for throughout the country. These measures are taken by applying a process called slope collapse prevention construction to slopes that are at risk of collapse.

Conventionally, various construction methods for preventing slope collapse have been known and implemented. For example, by spraying mortar or concrete on a slope that is at risk of collapsing, it prevents erosion of the slope, and by insulating the slope from outside air and rainwater, it prevents weathering and prevents the strength of the ground that forms the slope from decreasing. These include the so-called spraying method, and the so-called legal frame construction method, in which a grid of concrete or other legal frames is constructed on the slope to protect and strengthen the surface layer of the slope.

However, although the spraying method is widely used because it is relatively easy to apply, after construction it looks like mortar or concrete is simply poured onto the slope, and it significantly obstructs the surrounding landscape. This was not aesthetically pleasing. In this point slope construction method, the surface of the slope is the same except for the area held down by mesh-like slope blocks, and greening can be promoted by adding vegetation to this area. However, the construction of the legal framework itself is difficult, and if additional vegetation is added, the construction period becomes longer, resulting in an increase in construction costs.

Furthermore, similar to the present invention, there are also known construction methods that simultaneously carry out protection and greening. In this method, the soil containing seeds is first sprayed onto the slope, and then the mat is laid and secured with a presser net, so the soil containing seeds sprayed onto the slope during the mat installation is not trampled. There was a drawback that it could be stored away. As a result, seed germination is poor and plant growth is significantly inhibited. Furthermore, evenly distributed seeds were unevenly distributed, making it impossible to uniformly green the plants. Furthermore, there was a major operational disadvantage in that the soil containing seeds that had been sprayed on earlier reduced the efficiency of work such as laying the cloak and fixing the holding net.

Moreover, rock surfaces and the like cannot be greened by this method. In other words, since the soil is sprayed first, the soil will not stick to smooth surfaces such as rocks. Furthermore, since the anchor pin is driven in last, the anchor pin is exposed and is easily corroded.

As a result of intensive research, the inventors of the present invention have developed a construction method that can prevent the slope from collapsing and add greenery for aesthetic purposes.

In other words, the present invention provides water retention and heat retention between the presser net and the slope.
This method of greening slopes is carried out by laying a water-absorbent mantle and spraying soil containing the seeds of plants and other plants onto the top of the net, which further protects the slope with the net as the seeds grow and become entangled with roots. This is an aesthetically pleasing method that not only strengthens the slope but also promotes greening of the entire slope.

What should be noted here is that, unlike the slope construction method mentioned above, where vegetation can grow only in areas other than the mesh-like slope, it is possible to grow vegetation over the entire slope, which prevents slope collapse. The advantage is that construction can be carried out in a substantially natural form without leaving any traces of various construction works performed to prevent the problem.

The present invention will be described in detail below based on embodiments shown in the drawings.

Figure 1 shows an embodiment of the present invention, in which a mantle (2
), cover the cloak (2) with the presser net (3),
It is shown that it is fixed with an anchor pin (4) and soil (7) containing seeds (5) is sprayed onto it. Since the holding net (3) is made by driving anchor pins (4) into the ground of the slope (1) and fixing it, it has a sufficient function to prevent the slope (1) from collapsing. At the same time, it also has the role of fixing the mantle (2) to the slope (11).The soil (7) containing the seeds (5) is fixed in the voids and surface of the mantle, so that it does not wash away. Seeds (5) have completely germinated.

Of course, some seeds germinate not only from scattered seeds (5) but also from wind pollination.

In addition, here the presser net (3) is φ2 +nm x 50mm
Although diamond-shaped wire laths are used, wire laths made of synthetic resin or the like may also be used, and the diameter and shape may be determined depending on the possibility of collapse of the slope, the slope, etc., and are limited to this example. It's not a thing. In addition, this holding net does not have to be lath, it can hold down plants, and plants can germinate.
Any type of material that can drain flash floods will do.

In this embodiment, the cloak (2) is made of natural coconut fibers that are needle-bunched and then hardened with adhesive (thickness: 10 to 20 mm), as shown in Figure 2. Of course, a cloak made of synthetic resin or the like can also be used. Furthermore, the thickness of the cloak and the like can be determined freely and is not intended to limit the present invention.

However, it is desirable for the cloak (2) to have heat retention, water retention, and water absorption properties, especially on slopes where rocks are exposed! 11, germination of seeds (5),
It is best to use one that has the function of promoting greening as a breeding ground. Regarding this point as well, the cloak (3) made of coconut natural fiber of this example has the above-mentioned conditions,
Furthermore, it is inexpensive and has excellent workability.

Figure 3 (al (bl) (cl) shows a construction example of the present invention, in which a mantle (2) is laid on a slope (1) that is at risk of collapsing as shown in Figure 3 (a), and Net (3
) and fixed with anchor pins (4), and then sprayed with seeds (5) (Fig. 3(b)). Of course, it is possible to prevent the slope (1) from collapsing by simply using the holding net (3), even if the mantle (2) is laid down and the seeds (5) are sprayed, but the greatest feature of the present invention is beautification through greening. The laying of the cloak (2) and the spraying of seeds (5) are indispensable in order to protect and strengthen the slope (1) with plant roots and the like.

The slope greening method according to the present invention is capable of uniformly greening the slope (1) as shown in Figure 3 (C1), and is different from the conventional method in which it is clear that construction to prevent collapse has been carried out. This method has a great effect on harmonizing with the surrounding landscape, and can be said to be the best method.

Of course, this method can also be applied only partially. For example, construction may not be carried out on rocky areas, or only holding nets may be used. Furthermore, it goes without saying that the greening does not have to be uniform; it can be uneven, such as sparsely in the upper part and densely in the lower part.

In this embodiment, since the soil is sprayed after the anchor pin is driven, the anchor pin is not exposed to the air and has the advantage that corrosion is extremely low.

An anchor pin as used herein refers to a device for fixing a presser net or the like, and is not limited to the shape shown in the drawings, but may be of any type as long as it has a fixing function.

FIG. 4 shows another embodiment of the present invention, in which foam spraying is further applied to the embodiment described above. In other words, a slope (1
), it may not be possible to prevent rockfall with presser m (3) alone, so after spraying soil containing seeds (5),
It is sprayed with foam to further prevent it from collapsing.

This formment spraying is a spraying material (6 ml) made by mixing sand, cement, latex, etc. into a synthetic resin emulsion.
). By doing this, the finished product will be very beautiful and will not spoil the surrounding scenery even before the grass grows. Additionally, it does not affect the germination and growth of seeds, and will naturally cover up the plants as they grow.

This may be sprayed on the entire slope (fl), or may be sprayed only on the boundary with rocks or on parts where there is a high possibility of collapse.

The slope greening method according to the present invention, which has been explained in detail above, can prevent collapse as well as completely uniform greening of the entire surface, which was impossible with conventional slope collapse prevention methods, and is easy to work with. It is a useful slope protection method with excellent performance and extremely low construction costs.

[Brief explanation of drawings]

FIG. 1 is a schematic sectional view showing an embodiment of the present invention, and FIG. 2 is a perspective view of an embodiment of the cloak used in the present invention.
(b) and (C) are perspective views No. 4 showing construction examples of the present invention, respectively.
The figure is a schematic sectional view showing another embodiment of the present invention. 1... Slope 2... Mantle 3... Holder net 4... Anchor pin 5... Seeds 6... Spraying material 7... Soil containing seeds 2nd time. (a) (C) Mi in the third time

Claims (1)

[Scope of Claims] 1. Covering the surface of the slope with a mantle, covering it with a holding net, fixing it with an anchor bin, and then spraying soil containing seeds over the holding net. Slope greening method. 2. The slope greening method according to claim 1, wherein the mantle is made of coconut fiber. 3. The slope greening method according to claim 1 or 2, wherein after blowing off the soil containing seeds, foam spraying is performed.