JP2004324146A - Inclined surface greening method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inclined surface greening method which inexpensively, easily and positively implements greening of an inclined surface almost irrespective of the inclination of the inclined surface. <P>SOLUTION: According to the method, a net body 3 is arranged over the inclined surface 1 targeted for greening, and rack bodies 4 are connected to the net body 3 by means of annular members 5 connected to the net body 3, such that an upper end of each rack member is raised toward the net body 3. Then a vegetative substrate 2 is placed on each rack member 4. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for greening a slope such as a slope.
[0002]
[Prior art]
[Patent Document 1] Japanese Patent Application Laid-Open No. 2002-332640 In recent years, there has been an increasing demand for using plants around a greening construction site in consideration of biodiversity and prevention of gene disruption. A method of greening the seed bank by collecting and using seeds, or collecting a topsoil seed bank that contains seeds of plant growing there from the surface soil around the construction site and the forest around the construction site as buried seeds There is a growing tendency to use it and it is being implemented.
[0003]
[Problems to be solved by the invention]
However, in the revegetation method utilizing the topsoil seed bank, if the entire surface of an inclined surface such as a slope to be revegetated is greened by spraying or the like, the amount of topsoil collected for the spraying or the like is increased, and the amount is accordingly increased. The effect on the surrounding environment increases and the cost increases. In addition, there is a problem that intrusion of the target woody tree is delayed.
[0004]
Therefore, as described in Patent Document 1, a formwork member is installed on a slope using an anchor pin to clarify a boundary for partitioning a bare land and a bare land to form a growth base. There is a greening basic construction method aimed at efficiently capturing seeds flying from the surrounding area.
[0005]
However, in the greening foundation method described in Patent Literature 1, it is necessary to drive the anchor pins for installing the formwork members in many places, so that the slope has a steep slope portion or a hard rock mass. When there is a part, it is very difficult to perform the operation of driving the anchor pin in a large number of places, and there is a possibility that the construction may not be possible depending on the state of the inclined surface.
[0006]
SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-described matters, and has as its object to provide an inexpensive, easily and reliably greening of an inclined surface without being largely influenced by the state of the inclined surface. To provide a greening method.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a method for greening an inclined surface according to the present invention is to arrange a net such as a wire netting on an inclined surface to be greened, and to use a ring member connected to the net for the net. The shelf members are connected in a state where the upper end is lifted up, and the vegetation base material is held by the shelf members (claim 1).
[0008]
In the above-mentioned greening method, a net is laid on an inclined surface that is a greening target surface (or a construction target surface), and a vegetation base material including, for example, a topsoil seed bank is held on a shelf member arranged on the net. This forms a vegetation zone. And the part other than the vegetation zone on the slope becomes an artificial bare land, plant seeds easily enter from the periphery, transition of vegetation is promoted, and natural greening can be performed. Then, instead of spraying the vegetation base material including the topsoil seed bank on the entire inclined surface, it is only necessary to hold it on the shelf member formed so as to be dotted on the inclined surface. It requires only a small amount, has almost no adverse effect on the surrounding environment, and can be constructed at low cost. In addition, a plurality of vegetation zones formed by spraying a vegetation base material on the inclined surface improves water retention of the bare land and promotes germination of seeds flying from other places.
[0009]
Anchor pins are not required for fixing the shelf member, and the shelf member can be fixed using the annular member connected to the mesh body. Even if there is, since the work of driving the anchor pin can be minimized, the shelf member can be installed easily and securely without being largely influenced by the state of the inclined surface, and thus the greening of the inclined surface is easy. And it can be realized reliably.
[0010]
Preferably, the annular member has a substantially triangular shape. In this case, the force applied to the annular member is ideally dispersed due to its shape, and the shelf member can be more strongly held by the annular member.
[0011]
In order to achieve the above object, a method for greening an inclined surface according to the present invention includes disposing a net on an inclined surface to be greened, connecting a lower end of a shelf member on the net, A connecting member is provided between the upper end of the shelf and the net, and the upper end of the shelf is connected to the net by keeping the upper end of the shelf apart from the net by the connecting member (claim 3).
[0012]
Even in the case of such a configuration, the same operation and effect as the method for greening the inclined surface according to claim 1 can be obtained, and further, since the configuration is simpler and the construction is easy, the construction cost is higher. It will be cheaper.
[0013]
Preferably, the shelf member is a wire mesh. In this case, since a commercially available wire mesh can be used, the construction cost can be reduced.
[0014]
In addition, it is preferable that a wood chip is disposed on a portion of the inclined surface where the vegetation base material is not held by the shelf member (claim 5). In this case, by mixing the wood chips with bark compost, nitrogen fertilizer, and the like and arranging them on the inclined surface, it is possible not only to further promote the growth of plants on the inclined surface, but also to dispose in Japan. This makes it possible to effectively use the wood chips, which are in trouble, and contributes to the realization of zero emission required in the field.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the details of the present invention will be described with reference to the drawings.
1 and 2 are a perspective view and a longitudinal sectional view schematically showing a configuration of a method for greening an inclined surface (hereinafter, referred to as a greening method) according to an embodiment of the present invention, and FIG. It is a perspective view which shows the structure of a principal part schematically.
The greening method aims at greening by laying a greening base D holding the vegetation base material 2 on an inclined surface (for example, a slope) 1 to be greened.
[0016]
The greening base D includes a net 3 laid on the inclined surface 1, a shelf member 4 arranged upright on the net 3, and a connection between the shelf 4 and the net 3. Annular member 5.
[0017]
The vegetation base material 2 includes a topsoil seed bank, and specifically, a peat moss, a bark compost, and a water retention on a topsoil containing plant seeds 2a such as a mountain or a forest near the slope 1. It is obtained by appropriately mixing a growth auxiliary material 2b such as a material.
[0018]
The mesh body 3 is made of, for example, a wire mesh having a mesh size of about 5 cm, and is laid on the inclined surface 1 by anchor pins A, A,.
[0019]
The shelf member 4 has, for example, a size smaller than the size of the mesh body 3 (within 2 cm, for example, a size of about 5 mm), and has a height of 10 to 30 cm and a length (width) of 50 to 200 cm. It consists of a substantially rectangular wire mesh. The shelf member 4 is connected and held in an upright state in which the upper end is lifted with respect to the net body 3, and the annular member 5 is used as a member for that purpose. Note that the upright state of the shelf member 4 refers to a state in which the upper end portion of the shelf member 4 is lifted with respect to the mesh body 3, and the opening angle α of the shelf member 4 with respect to the mesh body 3 (see FIG. 2) is not particularly limited. In this embodiment, the shelf member 4 is held by the annular member 5 so as to stand substantially vertically.
[0020]
The annular member 5 has a substantially triangular shape (triangle shape) and includes three linear members 6, 6, and 6. Each linear member 6 has a substantially linear central portion 7, and curved locking portions 8, 8 provided at both ends of the central portion 7.
[0021]
In order to connect the annular member 5 to the net 3, one linear member 6 (hereinafter, referred to as a linear member 6 </ b> A) is brought into contact with the shelf member 4 in a state of abutting the lower surface of the net 3. The two linear members 6 (hereinafter, referred to as linear members 6B and 6C) are arranged in a vertical direction (a direction substantially perpendicular to the contour line of the inclined surface 1) and are engaged with each other at one end side of the locking members 8. At the same time, the locking portion 8 on the other end of one of the two linear members 6B is fixed to the locking portion 8 on the valley side of the linear member 6A disposed on the lower surface side of the mesh body 3. At the same time, the locking portion 8 on the other end of the other linear member 6C of the remaining two is connected to the locking portion 8 on the mountain side of the linear member 6A disposed on the lower surface side of the mesh body 3. Just fine. At this time, the locking portions 8, 8 at both ends of the linear member 6A and the locking portions 8, 8 at the other ends of the linear members 6B, 6C are respectively locked to the mesh body 3. Is also good. Further, instead of simply arranging the linear member 6A in a state of abutting on the lower surface side of the mesh body 3, the linear member 6A may be passed through the mesh of the mesh body 3 so as to sew the mesh.
[0022]
In order to connect the shelf member 4 to the mesh body 3 using the annular member 5, the state where the shelf member 4 is in contact with the linear member 6B of the annular member 5 connected to the mesh body 3 as described above is described. Just do it. As a result, as shown in FIG. 2, the shelf member 4 is held on the net 3 in an upright state.
[0023]
Here, the number of the annular members 5 used to connect one shelf member 4 may be appropriately set. For example, both ends and the center of each shelf member 4 may be connected to the net 3 by the annular members 5. Alternatively, when the shelf member 4 is long, the annular member 5 may be connected to the shelf member 4 at appropriate intervals (for example, about 50 cm). At this time, the locking portions 8, 8 at both ends of the linear member 6B may be locked to the shelf member 4, and the mountain-side locking portion 8 of the linear member 6A and the linear member 6C may be locked. May be respectively locked to the shelf member 4. Further, the shelf member 4 may be passed through the linear member 6B so as to sew a mesh of the shelf member 4 instead of simply abutting the shelf member 4 on the linear member 6B.
[0024]
In the greening method of this embodiment using the greening base D, the net 3 is laid on the inclined surface 1 and the shelf member 4 is erected on the net 3 using the annular member 5. The vegetation base material 2 including a topsoil seed bank (not shown) is held on the shelf member 4.
[0025]
More specifically, in the above-mentioned greening method, first, the inclined surface 1 is appropriately maintained, and the ground is leveled so that the uneven portion is reduced as much as possible (not necessarily a flat surface).
[0026]
Subsequently, a net 3 is laid on the slope 1 after the leveling, and a plurality of shelf members 4, 4... Are arranged on the net 3 so as to be substantially parallel to the contour line of the slope 1. Are arranged in a plurality of rows (rows) at appropriate intervals in a direction perpendicular to the contour lines. Each of the shelves 4 arranged as described above is connected to the net 3 using the annular member 5 as described above.
[0027]
Thereafter, the vegetation base material 2 is sprayed toward the vicinity of the upper surface (mountain side) of each shelf member 4 using an appropriate spraying device (not shown). Due to the spraying of the vegetation base material 2, a plurality of vegetation zones 9, each having a right-angled triangular cross section as shown in FIG. It is formed so that
[0028]
The vegetation zone 9 formed on the inclined surface 1 is a low enclosure projecting at most about 10 to 30 cm from the inclined surface 1, and the net 3 is laid on the inclined surface portion 1 a between the vegetation zones 9. Since it is an artificial bare land part, plant seeds easily enter the bare land part 1a from the periphery. The vegetation zone 9 around the bare land portion 1a includes the vegetation base material 2. Plants grow from the vegetation base material 2, and the bare land portion 1a is shielded from light and windproof. Accordingly, drying of the bare land portion 1a is skillfully prevented, and germination of seeds flying from other places is promoted. Germinated plant seeds grow more reliably and faster in the bare part 1a having excellent water retention. Therefore, vegetation transition is promoted, and greening with a high degree of naturalness is performed.
[0029]
In addition, the wood chip 10 may be arranged on the bare ground portion 1 a where the vegetation base material 2 is not held by the shelf member 4 on the inclined surface 1. The wood chips 10 are, for example, on-site generated materials such as thinned wood chips generated from a construction site or the like and crushed wood bark. The wood chips 10 are mixed with a bark compost, a nitrogen fertilizer, or the like to obtain bare wood. Spraying on the part 1a not only makes it possible to further promote the growth of plants in the bare land part 1a, but also makes it possible to effectively utilize the wood chips 10 that are difficult to dispose in Japan. It will also contribute to the realization of zero emission required in the above.
[0030]
In the greening method having the above-described configuration, the net 3 is laid on the inclined surface 1 that is the greening target surface (or the construction target surface), and the shelf members 4 are provided on the net 3 at appropriate intervals. Since the vegetation base material 2 including the topsoil seed bank is held by the shelf member 4, a plurality of the vegetation base materials 2 are formed so as to be parallel to the contour line on the inclined surface 1. Vegetation zone is formed. And the slope 1 other than these vegetation zones is an artificial bare land, plant seeds are easy to enter from the periphery, transition of vegetation is promoted, and natural greening can be performed. Then, instead of spraying the vegetation base material 2 including the topsoil seed bank on the entire inclined surface 1, it is only necessary to hold the vegetation base material 2 on the shelf members 4 formed so as to be scattered on the inclined surface 1. It is possible to reduce the amount of the sample collected, to have almost no adverse effect on the surrounding environment, and to carry out the construction at low cost. In addition, since the structure of the greening substrate D to be used is very simple and can be manufactured at low cost, the greening method can be implemented at low cost. In addition, a plurality of vegetation zones formed by spraying the vegetation base material 2 on the inclined surface 1 enhances the water retention of the bare land, and promotes the germination of seeds flying from other places.
[0031]
Further, in the above-mentioned greening method, since the net body 3 is laid on the inclined surface 1, the collapse of the inclined surface 1 is skillfully prevented. Further, when the material of the net 3 is formed of a corrosive material, the net 3 can be assimilated to the inclined surface 1 with the lapse of time, thereby further protecting the environment.
[0032]
Further, in the above-mentioned greening method, although the anchor pin A is used for fixing the mesh body 3, the anchor pin is not required for fixing the shelf member 4. Since the shelf member 4 can be fixed simply by attaching the body 3 to the annular member 5 and attaching the shelf member 4 to the annular member 5, even when the inclined surface 1 has a steep inclination angle portion or a hard rock portion, Since the operation of driving the anchor pin A can be minimized, the greening base D can be easily and reliably installed without being substantially influenced by the state of the inclined surface 1, and greening of the inclined surface can be realized. Becomes possible.
[0033]
Note that, for example, a water retention sheet (not shown) made of a vegetable sheet such as a palm mat is held on the mountain-side surface of the shelf member 4 or is fixed to the valley-side surface of the shelf member 4, so that a vegetation base is formed. It is preferable that the material 2 is configured to sufficiently prevent drying.
[0034]
In addition, the connection of the shelf member 4 to the mesh body 3 may be performed only by the annular member 5, but in addition to the annular member 5, the connection is performed using a unit such as bundling an appropriate member. Is also good.
[0035]
Further, the annular member 5 is not limited to the one including the three linear members 6, 6, and 6, for example, as shown in FIG. 4, the linear members 6A and 6B are connected and integrally formed. Alternatively, any two linear members 6, 6 of the three linear members 6A, 6B, 6C may be connected and integrally formed. Alternatively, only the linear members 6B and 6C may be used without providing the linear member 6A (the sectional shape is substantially triangular).
[0036]
Figure 5 (A) and (B) is a longitudinal sectional view and a perspective view schematically showing the structure of a greening base for D ₂ is a modification of the greening substrates for D.
The greening base D ₂ is different from the greening base D in that the connecting member 4 a is provided at the lower end of the shelf member 4 instead of the annular member 5, and the upper end of the shelf member 4 is connected to the net 3. And a connecting member 11 is provided between them, and the upper end of the shelf member 4 is connected by the connecting member 11 in a state of being separated from the net 3.
[0037]
The connecting portion 4a has, for example, a substantially L-shape and is made of metal such as iron.
[0038]
The connecting member 11 is configured similarly to the linear member 6, and has a substantially linear central portion 11a and curved locking portions 11b, 11b provided at both ends of the central portion 11a. ing. The locking portion 11b of the connecting member 11 on the side locked to the upper end of the shelf member 4 may be configured in the same manner as the locking portion 8 of the linear member 6; As shown in (B), the shelf member 4 may be deformed in a ring shape so that the shelf member 4 cannot be removed from the upper end.
[0039]
Also in greening method for laying a greening substrate for D ₂ having such a structure to the inclined surface 1, to say that the same effects as greening methods described above for laying the greening substrate for D the inclined surface 1 Nor. Further, the greening substrates for D _2, said it is easy construction configuration is a simple as compared with greening substrate for D, it just, construction costs are reduced.
[0040]
【The invention's effect】
As described above, with the above-described configuration, it is possible to provide a method for greening an inclined surface that can be easily and reliably implemented at low cost without being substantially influenced by the state of the inclined surface.
[0041]
That is, in the above-mentioned greening method, a net is laid on an inclined surface which is a greening target surface (or a construction target surface), and a vegetation base material including, for example, a topsoil seed bank is placed on a shelf member arranged on the net. A vegetation zone is formed by holding. And the part other than the vegetation zone on the slope becomes an artificial bare land, plant seeds easily enter from the periphery, transition of vegetation is promoted, and natural greening can be performed. Then, instead of spraying the vegetation base material including the topsoil seed bank on the entire inclined surface, it is only necessary to hold it on the shelf member formed so as to be dotted on the inclined surface. It requires only a small amount, has almost no adverse effect on the surrounding environment, and can be constructed at low cost. In addition, a plurality of vegetation zones formed by spraying a vegetation base material on the inclined surface improves water retention of the bare land and promotes germination of seeds flying from other places.
[0042]
Anchor pins are not required for fixing the shelf member, and the shelf member can be fixed using the annular member connected to the mesh body. Even if there is, since the work of driving the anchor pin can be minimized, the shelf member can be installed easily and securely without being largely influenced by the state of the inclined surface, and thus the greening of the inclined surface is easy. And it can be realized reliably.
[Brief description of the drawings]
FIG. 1 is a perspective view schematically showing a configuration of an inclined surface greening method according to an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view schematically showing the configuration of the embodiment.
FIG. 3 is a perspective view schematically showing a configuration of a main part of a greening substrate in the embodiment.
FIG. 4 is a longitudinal sectional view schematically showing a configuration of a modification of the annular member in the embodiment.
FIGS. 5A and 5B are a longitudinal sectional view and a perspective view schematically showing a configuration of a modification of the greening substrate.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Slope surface, 2 ... Vegetation base material, 3 ... Net, 4 ... Shelf member, 5 ... Ring member.

Claims (5)

A net is arranged on an inclined surface to be greened, and a shelf member is connected to the net using an annular member connected to the net while an upper end thereof is lifted. A method for greening an inclined surface, comprising holding a material. The method according to claim 1, wherein the annular member has a substantially triangular shape. A net is arranged on the inclined surface to be greened, and the lower end of the shelf member is connected to the net, and a connecting member is provided between the upper end of the shelf member and the net, and this connecting member A method for greening an inclined surface, comprising connecting the upper ends of the shelf members in a state separated from the mesh body, and holding the vegetation base material on the shelf members. The method according to claim 1, wherein the shelf member is a wire mesh. The method for greening an inclined surface according to any one of claims 1 to 4, wherein a wood chip is disposed on a portion of the inclined surface where the vegetation base material is not held by the shelf member.

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