JP2818925B2 - Slope greening method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] The present invention relates to a slope greening method in which a reinforcing frame is installed on a slope and a portion surrounded by the reinforcing frame is greened.

[0002]

2. Description of the Related Art Conventionally, in this type of slope greening method, a slope protection structure made of precast concrete as disclosed in, for example, Japanese Patent Application Laid-Open No. 4-277222 is installed on the slope. JP-A-4-216717
By installing a slope protection structure filled with concrete in a frame made of synthetic resin as disclosed in Japanese Patent Publication No. The slope was greened by, for example, spraying a vegetation material containing plant seeds onto a portion surrounded by the reinforcing frame.

[0003]

However, in any of the above-mentioned methods, since the reinforcing frame is made of concrete or synthetic resin, the background of the reinforcing frame is exposed as it is, and the portion surrounded by the reinforcing frame is exposed. A feeling of incompatibility occurred between the green part and the green part, and as a result, the slope could not be beautifully greened.

[0004] The present invention has been made in consideration of the above-mentioned matters, and sufficiently strengthens the slope by preventing collapse of the slope, etc., and uniformly uniforms the slope in a state excellent in landscape. It aims to provide a slope greening method that can be greened.

[0005]

In order to achieve the above object, the present invention relates to a slope greening method in which a reinforcing frame is installed on a slope and a portion surrounded by the reinforcing frame is greened. The reinforcing bars are arranged at regular intervals so that the reinforcing bars are formed, and the reinforcing bars are wound around the reinforcing bars at appropriate intervals. The reinforcing frame is composed of the tubular structure, a fixing tool is embedded and fixed downward in a hole provided in the slope, and the connecting member is inserted into a portion of the fixing tool that protrudes from the slope of the fixing tool. After fixing the tubular structure to the slope, the tubular structure was sprayed with a vegetation material containing plant seeds, so that the inside of the tubular structure was filled with the vegetation material and the surrounding area was covered with vegetation material. It is characterized by:

In this case, the following method may be used instead of spraying the vegetation material. That is, rebars are arranged at equal intervals so that a cylindrical space is formed, and rebars are wound around the perimeter at appropriate intervals, and a joint member having a large space formed by welding is used as a connecting member. Along with configuring the reinforcing frame with a tubular structure assembled in a cross shape through,
The lower part is provided with a fixture buried and fixed in the hole provided on this slope, and in a state where a vegetation bag containing a vegetation material including plant seeds is stored in the cylinder, a portion protruding from the slope of the fixture is provided. The tubular member is fixed to the slope by inserting the connecting member.

[0007]

For example, when a tubular structure is fixed to a slope by a fixture for inserting a connecting member, a vegetation material including plant seeds is sprayed on the tubular structure. The body structure reinforces the slope, such as preventing collapse of the slope.

Since the inside of the tubular structure is filled with a vegetation material and the periphery thereof is covered with the vegetation material,
Plants also grow on the slopes where the tubular structures are installed. On the other hand, a vegetation material similar to the above-mentioned vegetation material is sprayed on a slope other than the installation portion of the tubular structure. Therefore, not only the installation portion of the tubular structure on the slope but also the installation portion is greened. As a result, the entire slope is uniformly greened and a beautiful scenery is obtained.

In a case where the vegetation bag containing the vegetation material containing plant seeds is housed in the cylinder, the cylinder structure is fixed to the slope by means of a fixture through which the connecting member is inserted. As described above, the entire slope is uniformly greened, and a beautiful landscape is obtained.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a first embodiment of the present invention will be described with reference to FIGS. 2 to 4 are views showing an example of the tubular structure 1 used in the slope greening method according to the present invention, which is configured as follows, for example. That is, as shown in FIG. 4, an appropriate thickness, for example, a diameter of 4 to 13 mm
Reinforcing bars 2 of appropriate degree (16 in the illustrated example) are arranged at regular intervals in a rectangular shape in a sectional view, and rebars 3 of appropriate thickness are wound around them at appropriate intervals and welded to form a square gap. A large number of cylinders 5 are formed.

The size of the cylindrical body 5 is, for example, 10 to 2
It is 0 cm x 10 to 20 cm in width x 50 to 100 cm in length. Also, if the gap between the transparent gaps 4 is too large, the mechanical strength of the cylindrical body 5 cannot be maintained, and if it is too small, when a vegetation material described later is sprayed, it is difficult for the vegetation material to pass therethrough, and is mixed with the vegetation material. It hinders the germination of plant seeds and the growth of plants. Therefore, it is preferable to maintain the appropriate strength, to allow the passage of the vegetation material, and to have a size that does not hinder the germination of the plant seed or the growth of the plant.

An end cover 6 is welded to one end of each of the cylinders 5, and the two cylinders 5 are
Concatenate. That is, as shown in FIG.
The two cylindrical bodies 5 are welded in the longitudinal direction by welding a plate-shaped connecting member 7 having a length of, for example, about 10 cm to each end cover 6 so that the through-holes 7a are arranged vertically. The connected body 8 is constituted.

The connecting member 7 functions as an anchor plate when the tubular structure 1 is fixed to a slope, as described later. In FIG. 3, reference numeral 9 denotes an end cover welded to the other end of the cylindrical body 5, and a screw hole 9a is formed in the end cover 9.

Then, two connecting members 8 are connected, as shown in FIG.
As shown in (A) and (B), the cylinder structure 1 is obtained by assembling in a cross shape such that the holes 7a of the connecting member 7 overlap each other. In this case, two links
In 8 , it is preferable to use the connecting members 7 having different installation heights. In FIG. 2B,
Reference numeral 10 denotes a temporary fixing member.

Next, the cylindrical structure 1 constructed as described above
An example of a method of greening a slope by using the method will be described with reference to FIG. In FIG. 1, reference numeral 11 denotes a slope to be constructed. A hole 12 having an appropriate depth is formed in the slope 11, and an anchor bolt 1 as a fixing tool is formed in the hole 12.
3 is fixed and embedded by a mortar 14 with its upper part protruding from the slope 11 as appropriate.

Before the tubular structure 1 is installed on the slope 11, a net 15 such as a wire mesh is laid as appropriate.

Next, the temporary fixing member 10 is removed from the tubular structure 1, and the holes 7a of the connecting member 7 as an anchor plate are overlapped with each other.
With the two connecting bodies 9 crossed in a cross, the holes 7a
Through the anchor bolt 13 and tighten it with the nut 16. In this case, the cross-shaped tubular structure 1 is
Are fixed at appropriate locations such as locations where reinforcement is required at appropriate intervals.

In this manner, the cylindrical structure 1 is placed on the slope 11
After fixation, plant seeds, organic matter, chemical fertilizers, soil conditioners, water-retaining agents such as a water-retaining agent and the like directly or indirectly necessary growth base was mixed at an appropriate ratio to form a gel, for example. The vegetation material 17 is sprayed in a thick layer from above the net 15 laid on the slope 11 and the cylindrical structure 1 using a wet spraying device (not shown) such as a mortar gun machine.

In this case, the vegetation material 17 is sufficiently introduced into the cylindrical body 5 of the cylindrical structure 1 and sprayed to such an extent that the upper part thereof is hidden by the vegetation material 17. And
The vegetation material 17 is also sprayed on the slope 11 other than the portion where the tubular structure 1 is provided. In this case, the sprayed thickness does not necessarily need to be the same height as the tubular structure 1, but it is desirable that the periphery of the tubular structure 1 be covered with the vegetation material 17. In FIG. 1, 18
Is a spray nozzle of the spray device.

In the above-described slope greening method, by fixing the cross-shaped tubular structure 1 to the slope 11 as a reinforcing frame, the slope 11 is reinforced, for example, the collapse of the slope 11 is prevented. . Then, as described above, when the net 15 is laid on the slope 11, the runoff of the sprayed vegetation material 17 is prevented. If the laying height of the net 15 is set to about half of the sprayed thickness of the vegetation material 17, the flow-out prevention effect is further increased.

By spraying the vegetation material 17, the plants germinate and grow from the slope 11 other than the portion where the tubular structure 1 is installed. Further, since the inside of the tubular structure 1 is filled with the vegetation material 17 and the periphery thereof is covered with the vegetation material 17, the plants germinate and grow at the installation portion of the tubular structure 1. Therefore, the installation portion as well as the installation portion of the tubular structure 1 on the slope 11 is greened, and as a result, the entire slope 11 is uniformly greened, and a beautiful landscape is obtained.

In the above-described embodiment, the gel-like vegetation material 17 is sprayed by a wet spraying machine. Instead of this, the plant seeds and the growth substrate are simply mixed without using water. The dry vegetation material may be sprayed by a dry spray machine such as an aero seeder.

In the first embodiment described above, the slope 11
After the tubular structure 1 is fixed to the tubular structure 1, a vegetation material 17 including plant seeds is sprayed on the tubular structure 1 to fill the inside of the tubular structure 1 with the vegetation material 17 and surround the vegetation material 17 with the vegetation material 17. Although it was made to cover, it may be replaced with this and may be like the 2nd example.

FIG. 5 is a view for explaining the slope greening method according to the second embodiment. In this figure, reference numeral 19 denotes a vegetation bag, for example, a plant seed made of a corrosive nonwoven fabric in a bag 20. And a vegetation material 21 obtained by mixing an appropriate ratio of a growth base material such as an organic substance, a chemical fertilizer, a soil conditioner, and a water retention agent, which is directly or indirectly required for plant growth.

In this embodiment, the vegetation bag 19
Is housed in the cylindrical body 5 to form the cylindrical body structure 1 in advance, and this is fixed by the anchor bolts 13 and the nuts 16 provided on the slope 11 in the same manner as in the first embodiment. 11 as a reinforcement frame. After that, a thick layer of vegetation material 17 is sprayed on the slope 11 other than the portion where the tubular structure 1 is installed, similarly to the first embodiment.

In the slope greening method according to the second embodiment, the cylindrical structure 1 is sprayed with the vegetation material 17.
The plant germinates and grows from the slope 11 other than the portion where is installed. Further, since the vegetation bag 19 containing the plant seeds and the growth base is accommodated inside the tubular structure 1, the plant germinates and grows in the installation portion of the tubular structure 1. Therefore, the installation portion as well as the installation portion of the tubular structure 1 on the slope 11 is greened, and as a result,
The entire slope 11 is uniformly greened, and a beautiful landscape is obtained.

In each of the above-described embodiments, the cylindrical structure 1
Are scattered on the slope 11, but the tubular structure 1 may be used to form a grid-like reinforcing frame 22 as in the third embodiment shown in FIG. 6. In this embodiment, as shown in an enlarged view in FIG. 6, a short screw shaft (see FIG. 6) is used to screw the cylinders 5 constituting the cylinder structure 1 into the screw holes 9a provided in the end cover 9. (Not shown) to connect the cylindrical structures 1 to each other, or to connect the cylindrical members 5 to each other by the long screw shaft 23 that is screwed into the screw hole 9a. It is formed similarly,
Without the end covers 6 and 9, a cylindrical body 24 is provided in which both ends of the upper reinforcing bar 2 are bent downward. The cylindrical body 24
Need not necessarily be provided.

In the state constructed as described above, as shown in the first embodiment, the vegetation material 1 containing plant seeds
7, the inside of the tubular structure 1 is filled with the vegetation material 17, the periphery thereof is covered with the vegetation material 17, and the portion surrounded by the reinforcing frame 22 is sprayed with the vegetation material 17.

The cross-sectional shape of the cylindrical body 5, which is a basic component of the cylindrical structure 1, is rectangular in each of the above-described embodiments, but is not limited to this. 7, it may be triangular. Although not shown, various shapes such as a trapezoidal shape or a circular shape in cross section can be used.

In each of the above embodiments, the slope 1
1, greening other than the portion where the tubular structure 1 is installed is performed by spraying the vegetation material 17 with a thick layer. However, the invention is not limited to this. For example, a green grass body disclosed in Japanese Utility Model Publication No. 58-5709 can be used. Laying on said part of surface 11,
Various methods can be adopted, such as laying a bag body described in Japanese Utility Model Publication No. 63-828 on the above-described portion of the slope 11.

[0031]

As described above, according to the present invention, the slope is reinforced by the reinforcing frame as in the conventional slope greening method. Furthermore, in addition to this, the part of the reinforcement frame,
That is, since the installation portion of the tubular structure on the slope is greened in the same manner as the portion where the tubular structure is not installed,
The entire slope is greened uniformly, and a beautiful landscape can be obtained, and both reinforcement and greening of the slope can be achieved at once.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a slope greening method according to a first embodiment of the present invention.

FIG. 2 is a view showing an example of a tubular structure used in the slope greening method.

FIG. 3 is a perspective view showing an example of a connecting body constituting the tubular structure.

FIG. 4 is a perspective view showing an example of a cylinder constituting the connecting body.

FIG. 5 is a perspective view showing an example of a connecting body used in a slope greening method according to a second embodiment of the present invention.

FIG. 6 is a view for explaining a slope greening method according to a third embodiment of the present invention.

FIG. 7 is a perspective view showing another embodiment of the cylindrical body.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Cylindrical structure, 2 ... Reinforcing bar, 4 ... Clearance, 5 ... Cylindrical body, 7
... connecting member, 11 ... slope, 13 ... fixture, 17 ... vegetation material, 19 ... vegetation bag, 21 ... vegetation material.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E02D 17/20

Claims (2)

(57) [Claims] In a slope greening method in which a reinforcing frame is installed on a slope and a portion surrounded by the reinforcing frame is greened, reinforcing bars are arranged at equal intervals so as to form a cylindrical space. Around
The reinforcing frame is composed of a tubular structure in which a reinforcing bar is wound at appropriate intervals and welded to form a highly transparent tubular body formed in a cross shape via a connecting member. A fixing tool buried and fixed in the hole provided in the hole is provided, and the connecting member is inserted into a portion protruding from the slope of the fixing tool to fix the tubular structure to the slope, and then the plant is attached to the tubular structure. A slope revegetation method characterized by spraying a vegetation material containing seeds to fill a vegetation material inside a tubular structure and to cover the periphery with a vegetation material. 2. A placed on slopes the reinforcing frame, the slope greening method for greening surrounded by the reinforcing frame part, the cylindrical space
Rebars are arranged at equal intervals to form
The reinforcing frame is composed of a tubular structure in which a reinforcing bar is wound at appropriate intervals and welded to form a cross-shaped tubular body formed in a cross shape through a connecting member. A fixing tool embedded and fixed in a hole provided on the surface is provided, and in a state where a vegetation bag containing a vegetation material including a plant seed is stored in the cylinder, the connecting member is attached to a portion protruding from a slope of the fixing tool. A slope revegetation method, wherein the tubular structure is inserted and fixed to a slope.