JP2003239290A - Greening method for bare ground slope and vegetation foundation bed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a greening method for a bare ground slope and a vegetation foundation bed, which can stabilize planting in the bare ground slope even by a water flow and flooding while preventing erosion of surface soil of the bare ground slope. <P>SOLUTION: In this greening method for the bare ground slope 2, the vegetation foundation bed 4, which is constituted by forming a protrusion 8 in a surface 7 and forming a plurality of through-holes 9 in a side surface of the protrusion 8, is laid on the slope 2; after that, a nonwoven fabric 12, in which vegetational plants 5 are planted, is laid in such a manner as to abut on a surface of the protrusion 8 of the foundation bed 4; and at least the nonwoven fabric 12 is fixed to the slope 2. The surface soil flowing down percolates through the protrusion 8 and is accumulated in it, so that a growth foundation bed for the plants can be formed and so that the planting of the slope 2 can be stabilized by intercepting the following surface soil. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for planting bare land slopes and a vegetation base, and in particular, prevents plant surface soil on bare land slopes from being eroded by water currents and flooding to stabilize planting. The method of revegetation of bare slopes and the vegetation base.

[0002]

2. Description of the Related Art The slope of a river embankment that protects against the danger of flooding and the bare slope with severe erosion maintain a natural landscape by covering reinforced concrete with earth and sand from the viewpoint of ecosystem and landscape conservation. Although the construction method is being developed, it is necessary to prevent the surface soil from being eroded by natural water flow and heavy water flow during rainfall. There is a demand for a protective construction method that can reinforce the erosion prevention function together with vegetation by helping.

Further, as a construction method for stabilizing and revegetating the flooded surface bare land slopes of dam lakes, lakes, ponds, etc., as shown in FIG. The method of construction and the method of using the log, the gabion, the chemical fiber net, etc. shown in FIG. 6 together with the basic construction 33 and the plant 30 are generally used, but these construction methods have the following problems.

That is, in the foundation construction work 33 such as earth retaining fence work using logs and logs, gabions, etc., a water level difference occurs due to the four seasons of dam lakes, lakes, ponds, etc. Repeated flooding and naked exposure make it physiologically difficult to continue and survive the plant for planting and stabilizing the scenery.

In particular, the function of the vegetation base depends on the special condition of the flooded surface bare land slope such as dam lakes, lakes, ponds, etc., where freezing death during bare season in winter and heat drying death in summer are dangerous. It was insufficient.

In addition, in the method of using a plant and a chemical fiber net together, even if it is effective to use a vine plant as a plant for the purpose of landscape greening, the chemical fiber is used at an interval between a high water level and a low water level. Due to the floating phenomenon of the net, it is difficult for the root to invade the slope, and even if it is rooted, the root cannot be fixed because the root is peeled off. Since it has a drawback of deterioration, it also had problems of environmental pollution and disposal.

[0007]

DISCLOSURE OF THE INVENTION The present invention is proposed in view of the problems of the present situation as described above, and prevents water erosion and waterlogging while preventing the surface soil on the bare slope from being eroded. Also provides a method of vegetation and a greening method for bare slopes that can stabilize the planting of bare slopes.

[0008]

The method for greening bare slopes according to the present invention basically comprises a vegetation base formed by forming a convex portion on the surface and forming a plurality of through holes on the side surface of the convex portion. Laying on a bare ground slope, then laying a non-woven fabric planted with vegetation plants along the convex surface of the vegetation base, at least the non-woven fabric is fixed to the bare ground slope, specifically, , The surface protrusion of the vegetation base is parallel to the slope direction of the bare ground slope, or soil is filled in advance between the surface protrusion and the bare ground slope to be laid. Furthermore, the bare slope is characterized by continuous flooding and repeated inundation.

As a result, the method for greening bare slopes according to the present invention allows soil eroded by water currents and waves to gradually flow into the convex portion of the vegetation base in the direction from the shoulder to the slope of the bare slope. It prevents the surface soil from eroding and has many holes through which the plant roots can penetrate, so by using the soil damage accumulated in the protrusions as a greening base, Can also stabilize planting on bare slopes.

Further, the vegetation substrate according to the present invention used for the method for greening bare slopes described above comprises a flat substrate and a plurality of convex portions formed on the surface of the substrate, and a plurality of convex portions are formed on the side surfaces of the convex portions. It is configured by providing a through hole.

Thus, the vegetation base according to the present invention is
Soil eroded by water currents and waves gradually flows into the convex part of the vegetation base in the direction from the shoulder to the slope, preventing the erosion of the surface soil on the bare slope. Since there are many holes through which plant roots can penetrate, soil that has accumulated on the convex parts can be used as a greening base.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION A method for greening a bare slope according to the present invention comprises laying a vegetation base on a bare slope, the convex base being formed on the surface and a plurality of through holes being formed on the sides of the convex. Then, after that, a non-woven fabric in which vegetation plants are planted is laid along the convex surface of the vegetation base, and at least the non-woven fabric is fixed to the bare slope.

Embodiments of a bare land slope greening method and a vegetation base according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an embodiment of a bare ground slope in a dam adjusting pond or the like to which the method for greening a bare ground slope according to the present invention is applied. As shown in the figure, a plurality of vegetation bases 4 are formed on the bare slope 2 of the dam regulating pond 1 over the flooded surface 3 and on the upper and lower bare slopes.
Is laid down, and the sedum genus Turmange 5 planted on the vegetation base 4 is overgrown.

The vegetation base 4 is firmly fixed to the bare slope 2, and the vine roots 5 are stored in the vegetation base 4 through the through holes provided in the vegetation base 4 from above. While growing on the soil that flows down, it reaches the bare slope 2 and is firmly rooted. Therefore, the soil stored in the vegetation base 4 is reliably retained without further flowing down, and the surface soil on the bare slope 2 located above the vegetation base 4 is protected from natural collapse or rainfall. It maintains a fixed state without being eroded even by a violent water flow.

In addition, the vegetation base 4 also exerts a function of extinguishing waves generated by repeated running and flooding against a bare slope of a flooded surface in a dam regulating pond, etc. In addition, it is possible to achieve the same function and effect at an extremely low cost without the need to provide a floating island for the purpose of wave breaking, erosion prevention and seawall protection.

[0017] However, since the Citrus vulgaris 5 is a plant which is durable against repeated flooding and drying, the water level generated by the four seasons of dam lakes, lakes, ponds, etc. It is possible to survive continuously so as to maintain the landscape and stability without being depleted by repeated flooding / naked out due to the difference in elevation and repeated waves.

As the plants to be planted on the vegetation base 4,
The plant is not limited to C. scutellaria and may be any other plant that has durability against repeated flooding and drying and is resistant to water, drying, snow and ice.

As described above, the structure of the vegetation base and the laying on the bare slope greatly contribute to the growth of plants that are durable against repeated flooding and drying on the bare slope. .

Therefore, the vegetation base according to the present invention is composed of a planar base and a plurality of convex portions formed on the surface of the base, and is formed by providing a plurality of through holes on the side surface of the convex portion. Soil eroded by water currents and waves gradually flows into the convex part of the vegetation base from the shoulder toward the hill,
Erosion of the surface soil on bare slopes is prevented, and many holes through which plant roots can penetrate are formed in the protrusions, so the soil accumulated in the protrusions can be used as a greening base.

In particular, by preventing the floating phenomenon by fixing the nonwoven fabric, the root can surely enter the slope and can be fixed without peeling off the root once rooted.

FIG. 2 is a perspective view (a) showing an embodiment of a vegetation base and a side sectional view (b) taken along the lines (b)-(b) of the perspective view (a), showing a partial breakage. The relationship between the vegetation base and the non-woven fabric is clarified while changing the state.

The vegetation base 4 on which plants are vegetated is composed of a flat plastic base 6, and in the present embodiment, as a convex portion formed on the surface 7 of the base 6, a bare ground slope is used. Corrugated push-out section 8 configured in parallel with the inclination direction of
Is configured.

The corrugated extrusion part 8 is provided with a plurality of through-holes 9 to form a path for the roots of the vegetation to grow and extend toward the bare slope, and at the same time the bare ground. It functions as a permeation hole for storing in the vegetation base 4 that the surface soil on the slope is eroded by a strong water flow during natural collapse or rainfall.

The corrugated extruding part 8 is basically flat so that the surface soil flowing down from the bare ground slope is stored between the back surface recess 10 of the corrugated extruding part 8 and the bare ground slope 2. It is formed on the base 6, and in the present embodiment, they are sequentially arranged in parallel with each other in the inclination direction of the bare slope.

Further, the shape of the corrugated extruding portion 8 is formed as a single continuous body over the entire width of the base 6 and arranged in parallel in a stepwise manner in the inclination direction of the bare slope, or as shown in FIG. As shown in a), while the corrugated extruded portions 8 are cut in an appropriate length, the corrugated extruded portions 8 are arranged linearly in the width direction of the base 6 and are adjacent to each other in the inclined direction of the bare slope. 11 is a state in which the portion of the corrugated extruded portion 8 that has been cut is staggered
The base 6 can also be formed by arranging the base 6 and the base 6.

On the surface of the vegetation base 4, which is the base 6, a non-woven fabric 12 having a thickness of 2 mm and formed by mixing and woven polyethylene terephthalate and polyethylene is laid. The non-woven fabric 12 is preliminarily vegetated with the plant to be planted, the cultivated vines Ningusa 5 or its roots. It is also possible to preliminarily mix the non-woven fabric 12 with the soil serving as a growth base of the planted plant.

The non-woven fabric 12 can be made of a corrosive material if necessary, and by eliminating the non-woven fabric while cooperating with the growth of the plant to be planted, environmental problems can be avoided. Can be considered.

Various means can be used for fixing the vegetation base 4 to the bare slope 2, but as in the present embodiment shown in FIG. 2B, the base 6 of the vegetation base 4 is fixed to the anchor. 1
It is also possible to fix the unwoven fabric 12 on the bare ground slope 2 at 3 and then fix the nonwoven fabric 12 while laying it on the vegetation base 4.

However, since the fixing of the vegetation base 4 is the fixing of the nonwoven fabric 12 on which the planting plant is finally growing, at least the fixing of the nonwoven fabric 12 is essential.
It is also possible to fix the non-woven fabric 12 and the non-woven fabric 12 to the bare slope 2 at the same time.

By fixing the vegetation base 4 to the bare ground slope 2, as shown in FIG. 2B, it flows down from the bare ground slope 2 into the back surface recess 10 of the corrugated extruding portion 8. Surface soil 14
Are stored between the bare slopes 2.

As shown in the partially enlarged view of FIG. 3, the surface soil 14 is the open end of the corrugated extruded portion 8 in which the soil 15 eroded from the bare slope 2 is formed on the surface 7 of the base 6. It gradually flows from 16 and is permeated and deposited at any time into the back surface recess 10 forming the void. Further, the soil 15 flowing over the open end 16 of the corrugated extruding part 8 and flowing down is blocked by the corrugated extruding part 8 which continues in a stepwise manner with respect to the inclined surface, and is corrugated with the nonwoven fabric 12. The plurality of through holes 9 provided in the extruded portion 8 are permeated and introduced into the space between the nonwoven fabric 12 and the substrate 6 or the back surface recess 10.

The surface soil 14 in the back recess 10 deposited as described above functions as a growth base for plant roots to be planted, and at the same time dams the subsequent erosion soil from flowing down together with the corrugated extrusion 8. By stopping it, the surface soil is prevented from being eroded from the bare slope 2.

Further, the vines 5 planted on the non-woven fabric 12 pass through the through holes 9 of the corrugated extruded portion 8 and reach the surface soil 14 accumulated in the recessed portion 10 on the back surface. Is growing. Then, the roots grown on the surface soil 14 are further extended to extend the roots even on the bare ground slope 2, so that a more robust overgrowth state can be established.

In the above embodiment, the surface soil 14 is
It has been explained that the soil 15 eroded from the bare slope 2 is gradually infiltrated into the hollow rear surface recess 10 by natural flow and is stored.

However, in order to promote the growth of the Astragalus vulgaris 5 planted on the non-woven fabric 12, the presence of the surface soil 14 as a greening base for the growth is indispensable. By filling the surface soil 14 in advance between the back surface recessed portion 10 of the corrugated extruding portion 8 and the bare ground slope 2, it is possible to prepare and place a greening base for growing the C. vulgaris 5.

FIG. 4 is a front view (a) showing another embodiment of the vegetation base and a side cross-sectional view (b) of the front view (a) taken along arrows (b)-(b).

The vegetation base 20 of the present embodiment is composed of a planar base 6 as in the above-mentioned embodiments,
As a projection formed on the surface 7 of the base 6, a bowl-shaped projection 21 is formed in parallel with the inclination direction of the bare slope. Similarly, the bowl-shaped protrusion 21 is also provided with a plurality of through holes 9 in the circumferential surface, and when the roots of the plant to be vegetated grow and extend to the bare slope side, as in the above-described embodiment. The vegetation base 20 shows that the surface soil on the bare slope is eroded by the natural flow of water during natural collapse and rainfall while forming a path.
It has permeation holes for depositing on.

The bowl-shaped protrusion 21 is a flat base so that the surface soil flowing down from the bare ground slope is stored between the back surface recess 22 of the bowl-shaped protrusion 21 and the bare ground slope 2. In the present embodiment, by arranging the adjacent bowl-shaped protrusions 21 in a zigzag pattern while shifting them from each other, the surface soil flowing down is either in the upper or lower bowl. Protrusion 2
In addition to being surely introduced into the back surface recess 22 of 1,
With respect to the surface soil overcoming the upper end of the vegetation base 20, it is arranged so that it is dammed by one of the upper and lower bowl-shaped protrusions 21, and a plurality of penetrations provided in the bowl-shaped protrusion 21 are provided. It penetrates through the holes 9 and permeates and deposits in the back surface recess 22.

The arrangement of the bowl-shaped protrusions 21 is not limited to this embodiment, and the bowl-shaped protrusions 2 may be provided depending on the situation.
By arranging 1's in a straight line and arranging these straight lines in a stepwise manner along the inclination direction of the bare slope, it is naturally possible to configure like a grid.

Also in this embodiment, the non-woven fabric 12 is laid on the surface of the vegetation base 20. The functions of the surface soil 14 that is permeated and deposited in the non-woven fabric 12 and the back surface recessed portion 22 of the bowl-shaped protrusion 21 are the same as those in the above-described embodiment, so the description thereof will be omitted. 21
It is also possible to fill it in the back surface concave portion 22 in advance and place it.

As a means for fixing the vegetation base 20 to the bare slope 2, in the present embodiment, the base 6 of the vegetation base 20 is fixed to the bare slope 2 with a fixing anchor 13 unlike the above-described embodiment. Without laying, after laying the nonwoven fabric 12 on the vegetation substrate 20 as shown in FIGS. 4 (a) and 4 (b),
The non-woven fabric 12 is covered with a net-shaped support member 23.

In this embodiment, a lattice-shaped stainless steel wire net is used as the support member 23, and although not particularly shown, the required end portion of the support member 23 is fixed to the bare slope 2 by a fixing jig. The vegetation base 20 and the non-woven fabric 12 are collectively fixed to the bare slope 2 by being fixed to.

The above-mentioned fixing means is not limited to the net shape of the support member 23, but is configured in various forms adapted to the shape of the convex portion to be arranged on the vegetation base. Can also be applied to, and the construction cost can be reduced by omitting the fixed anchor 13.

As described above, since the method for planting bare land slopes and the vegetation base according to the present invention are configured as described in each embodiment, the soil eroded by water currents and waves serves as the vegetation base. Prevents erosion of the surface soil on bare slopes by gradually flowing in the convex direction from the shoulder to the direction of the tail, because there are many holes through which plant roots can penetrate in the convex part, By using the landslide accumulated in the convex part as a greening base, it is possible to stabilize the planting on bare slopes even by water flow and flooding. In particular, by fixing the non-woven fabric to prevent its floating phenomenon, the root can surely enter the slope, and the root once rooted can be fixed without being peeled off.

The present invention has been described in detail above based on the embodiments. However, the method for planting a bare slope and the vegetation base according to the present invention are not limited to the above-mentioned embodiments, and the planting method is not limited thereto. Various modifications of the type of plant, the structure of the convex portion of the vegetation base, the structure or shape of the support member, and the material thereof, by applying what is already known at the time of filing, without departing from the spirit of the present invention. Of course, it is possible.

[0047]

The method for greening bare slopes according to the present invention comprises laying on a bare slope a vegetation base formed by forming a convex portion on the surface and forming a plurality of through holes on the side surface of the convex portion, After that, lay a non-woven fabric planted with vegetation plants along with the convex surface of the vegetation base, fix at least the non-woven fabric to the bare ground slope, the convex surface of the vegetation base of the bare ground slope. It is constructed in a state parallel to the inclination direction, or soil is filled in advance between the surface convex part and the bare slope to be laid, and the bare slope is repeatedly flooded. Since it is characterized by being flooded, it has the following effects.

The soil eroded by water currents and waves gradually flows into the convex portion of the vegetation base in the direction from the shoulder to the slope, thereby preventing the surface soil on the bare slope from being eroded. Since there are many holes through which plant roots can penetrate, it is possible to use the landslides that have accumulated on the ridges as a greening base, and to plant bare ground slopes even when water streams or floods are used. You can stabilize the plant. For the bare slope of the flooded surface in dam adjustment ponds,
Even with repeated running and flooding, wave-breaking, erosion prevention and revetment effects can be achieved at low cost. By fixing the non-woven fabric, the floating phenomenon is prevented, the root can surely enter the slope, and the root that has once rooted can be fixed without being peeled off.

Further, the vegetation base according to the present invention used for the method for greening bare slopes described above is composed of a flat base and a plurality of convex portions formed on the surface of the base, and a plurality of convex sides are formed on the side surfaces of the convex portions. Since the through holes are provided, the soil eroded by water currents and waves is prevented from eroding the surface soil on the bare slope by gradually flowing into the convex part of the vegetation base from the shoulder toward the hill. However, the effect of being able to use the landslide accumulated in the convex part as a greening base is demonstrated.

[Brief description of drawings]

FIG. 1 is a diagram of an embodiment to which a method for greening bare slopes according to the present invention is applied.

FIG. 2 is an embodiment diagram of a vegetation base used for a method for greening bare slopes according to the present invention.

[Fig. 3] An embodiment of a partially enlarged vegetation base

FIG. 4 is a diagram showing another embodiment of a vegetation base used in the method for greening bare slopes according to the present invention.

[Figure 5] Conventional greening map on bare slopes such as dam control ponds

[Figure 6] Another conventional greening map on bare slopes such as dam control ponds

[Explanation of symbols]

1 dam regulating pond, 2 bare land slope, 3 flooded surface,
4, 20 Vegetation base, 5 Turmange roots, 6 Base, 7 Surface, 8 Corrugated extrusion part, 9 Through holes, 1
0, 22 back recess, 11 zigzag condition, 12 non-woven fabric, 13 fixed anchor, 14 surface soil, 15
Soil, 16 open ends, 21 bowl-shaped protrusions, 23 support members, 30 plants, 31 piles, 32 soil retention fences,
33 Foundation construction,

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) E02B 7/06 E02B 7/06 (72) Inventor Takeshi Kurita 2-2 Matsuzaki-cho, Abeno-ku, Osaka-shi, Osaka No. 2 Okumura Gumi Co., Ltd. (72) Inventor Masao Konishi 2-2, Matsuzaki-cho, Abeno-ku, Osaka-shi, Osaka Prefecture No. 2 Okumura-Gumi Co., Ltd. (72) Yuaki Shiraishi 2-chome, Matsuzaki-cho, Abeno-ku, Osaka-shi, Osaka No. 2 Okumura Corporation F-term (reference) 2B022 AB02 BA23 BB02 2D018 DA06 2D044 DA13

Claims (5)

[Claims] 1. A vegetation base formed by forming a convex portion on the surface and forming a plurality of through holes on the side surface of the convex portion is laid on a bare ground slope, and then added to the convex portion surface of the vegetation base. A method of greening a bare ground slope, in which a non-woven fabric planted with vegetation plants is laid, and at least the nonwoven fabric is fixed to the bare ground slope. 2. The method for planting a bare slope according to claim 1, wherein the convex surface portion of the vegetation base is formed in a state parallel to the inclination direction of the bare slope. 3. The greening of a bare ground slope according to claim 1 or 2, wherein the convex portion of the surface of the vegetation base is pre-filled with soil between it and the bare ground slope to be laid. Method. 4. The method for greening a bare ground slope according to claim 1, wherein the bare ground slope is a flooded surface in which continuous flooding is repeated. 5. A flat base and a plurality of convex portions formed on the surface of the base, wherein a plurality of through holes are provided on the side surface of the convex portion. The vegetation base used for the greening method of the exposed bare slope.