JP2002038487A - Replanting method of slope face or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a replanting method of a slope face or the like by which not only planted young plants take roots but also the planted vegetation can absorb water and nutriments even in a dry weather. SOLUTION: Earth retaining stoppers 1 are formed in tiers regarding a slope face 2 as an execution face. Mixed soil suitable for the young plants is stuffed onto the earth retaining stopper 1 and a vegetation bag 4 through which the roots of the young plants can pierce is placed. In this method, after a coconut mat 17 as a water retrention mat for the slope face is laid, the earth retaining stopper 1 is installed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of planting and planting flowers and trees on steep slopes such as mortar and the like, using a retaining stopper for preventing outflow and collapse of the flowers and trees due to rainfall and the like. In particular, the applicant of the present invention disclosed in Japanese Patent Application Laid-Open No. 2001-73375 entitled "Greening Method of Slope" to promote the growth of plants planted on retaining stoppers and sprayed on the slope. It is related to a divisional application of a method that can prevent the outflow of squatting soil.

[0002]

BACKGROUND OF THE INVENTION In recent years, in order to maintain the landscape by folding road construction and riverbank construction, instead of simply covering the side of the road or the steep slope of the riverbank created by this construction with mortar or laying concrete blocks, Attempts have been made to plant plants, such as grasses, flowers, and trees, on the entire surface or in one section. When planting plants on such steep slopes, blow the soil as thick as possible on the steep slopes to ensure the establishment of the plants, dig holes there and plant seedlings, or plant potted seedlings. However, it is difficult to settle the seedlings because the seedlings do not fit the soil and cause poor growth, or even the rooted seedlings may be washed away with the soil due to heavy rain.

[0003] From such a background, the present applicant has devised a new support member for plants (seedlings) and has already registered a utility model as a "stopper for earth retaining" (registration No. 2541425).
The design registration (registration No. 938005) has been completed as a "earth retaining frame material". Furthermore, a patent for a "greening method such as a slope using a soil retaining stopper" that supports a vegetation bag containing soil and seedlings suitable for a seedling using the soil retaining stopper (Japanese Patent No. 266031)
No. 5), and the problem of the establishment of the seedlings on the slope has already been solved.

[0004] However, in consideration of the subsequent growth of the seedlings that have settled on the slope, there are problems, for example, in a condition where rain does not occur due to continuous sunshine, and fertilizer is washed away by rainwater. There was room for further improvement in the slope revegetation method in terms of promoting the growth of the plant that was obtained.

On the mortar spraying surface, a drainage pipe is provided on the back side for draining rain immersed in the mortar, but when heavy rain falls, rainwater spouts vigorously from the drainage pipe, so that the soil flows down. It wasn't that nothing happened. Furthermore, in cold regions such as the Hokuriku region and the Tohoku region, the outlet of the drainage pipe freezes, which overlaps several times to form icicles. Become.

[0006]

[Technical matters pertaining to divisional application] By the way, the present applicant has already disclosed Japanese Patent Application Laid-Open No. 2001-7337 as a technique for landscape improvement of this kind of slope.
5 The application covers "Slope revegetation method". This is a method for water supply to plants in consideration of the subsequent growth of the seedlings that have settled on the slope, and the like. Means are disclosed. Here,
001-73375 "Slope revegetation method" has been applied to the divisional application and the planted seedlings will not only be established, but also the planted plants will be moist and nutrient even when the sunshine continues. And the acquisition of rights for technologies that can absorb the adverse effects of rainfall.

[0007]

According to the first aspect of the present invention, there is provided a method for greening a slope or the like, wherein a soil retaining stopper is provided in a shelf shape with respect to a slope as a construction surface, and a seedling is placed on the soil retaining stopper. In a construction method in which a vegetation bag packed with suitable mixed soil and through which roots of seedlings can penetrate is placed, a soil retaining stopper is provided after a water retention mat is stretched on the slope. Things.

[0008] The greening method such as a slope described in claim 2 is as follows.
In addition to the above requirements, the water retention mat is a long fiber mat.

[0009] Further, the greening method such as a slope according to the third aspect,
In addition to the requirement of the second aspect, the long fiber woven mat is a coconut mat made of coconut fibers. The above-mentioned problem is solved by using the requirements described in these claims.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The "greening method for slopes and the like" of the present invention will be specifically described below with reference to the drawings. The reference numeral 1 in the drawing is a retaining stopper. This is for the purpose of spraying the soil 3 on the steep slope 2 of the mortar, which is an example of the construction surface, for greening the slope, in order to ensure the spraying and prevent the soil 3 from flowing out and collapsing. Plants 6 that are used and ultimately are planted for greening, such as flowering trees, are supported in a state where they are accommodated in vegetation bags 4.

The retaining stopper 1 used for such a purpose comprises a stopper plate 10 and an anchor pin 14.
And a palm mat 16 which is an example of a water retention mat placed on the stopper plate 10. The stopper plate 10 has a reinforcing member 11 having a flat U-shape as a frame member, and a net 12 is stretched over the reinforcing bar 11, and two nets are provided on one surface of the net 12. A sleeve 13 is provided. The size of the stopper plate 10 is, for example, 45 cm × 8 cm, but the size can be variously changed according to the application.

In the embodiment shown in FIGS. 1 to 4, the net 12 constitutes a structure passing through the root 7 of the plant 6, but in addition to the above, a number of holes are provided on a flat plate, One having a plurality of slits can be employed. Further, FIGS.
By using the reinforcing steel bar 11 in the embodiment shown in FIG. 1 and providing round bars of small diameter at regular intervals in the shape of a saw blade, it is also possible to form a structure through which the root 7 of the plant 6 passes. 3A is the most versatile and easy to use, but when the use of a specially shaped plant is limited, the shape of the stopper plate 10 is limited. As shown in FIGS. 3 (b) and 3 (c), a cage having both ends standing upright or diagonally can be employed.

Next, a palm mat 16 as an example of a long fiber mat (water retention mat) will be described. This is a rectangular shape that is almost the same size as the net of the stopper plate, obtained by spreading palm fibers flat and attaching an adhesive or mechanically entangled, and the thickness is an example. 10mm-30m
m is used. In addition, as an example of the water retention mat, the palm mat 16 is a preferred example in terms of water retention and economic efficiency, and the point that the hair root of the plant can enter between the fibers is preferable. For example, it is possible to change to other vegetable long fiber mats or synthetic resin long fiber mats, or to use a soft foamed synthetic resin.

Next, the palm mat 17 for laying a slope, which is a water retention mat, will be described. This is also the coconut mat 16
Spread the coconut fiber flat as above and apply adhesive or mechanically entangle it.
It is a rectangular sheet-like mat of about 0 mm and several sides to several meters on one side.

Next, the holding strap 15 will be described. As shown in FIGS. 1 and 4, the holding strap 15 is provided with hooks 15b at both ends of a rubber band 15a having a length of about 30 cm, which is an elastic body. Is appropriately bent to clamp the rubber band 15a, and the end thereof is bent into a hook shape. The material of the rubber band 15a is
It is preferable to use biodegradable synthetic rubber in consideration of environmental aspects. By the way, when synthetic rubber is used as the rubber band 15a, the durability in a state where it is left in the soil is maintained for about two years. During this time, the plant 6 retains the soil 3, the stopper plate 10, the lath net 9 and Since it takes root in the slope 2, the strength at that time is not required. The holding strap 15 can be of various types within a range in which the vegetation bag 4 can be held on the stopper plate 10, and the holding strap 15 can of course be implemented without the holding strap 15.

Next, the vegetation bag 4 will be described. As shown in FIG. 5, the vegetation bag 4 uses a fiber netting 4A made of resin fibers so as to allow ventilation, water passage, and passage of the roots 7 of the plant 6. The mixed soil 4B adapted to the seedlings of the plant 6 is housed inside. In the present embodiment, resin fibers are used as the material of the fiber netting 4A, but biodegradable resins or plant fibers such as hemp and cotton can also be used.

The various members used in the "greening method for slopes" of the present invention are formed as described above. Hereinafter, the "greening method for slopes" of the present invention will be described. First, FIG.
As shown in FIG. 2, first, a palm mat 17 for laying a slope is stretched with a plurality of concrete nails 18 or the like so as to cover the slope to be greened. Next, a lath net 9 is provided with a spacer 8 interposed therebetween. Next, soil retaining stopper 1
After the anchor pin 14 is inserted through the sleeve 13, the tip of the stopper pin 10 is driven into the slope 2 to adjust the position of the stopper plate 10 to an appropriate position, and then fixed to the slope 2.
Incidentally, at this time, it is preferable to pre-perforate the slope 2 with a drill or the like.

Then, the plurality of earth retaining stoppers 1 are shown in FIG.
(A) As shown in FIG. The reason why the earth retaining stoppers 1 are provided in a staggered manner is that when the earth retaining stoppers 1 are arranged vertically and horizontally, the adjacent earth retaining stoppers 1 are arranged.
The space between them becomes a water path, and it is easy for the soil 3 to collapse. In the present embodiment, a relatively small earth retaining stopper 1 having a width of 45 cm and a depth of 8 cm is used as an example. However, it is easy to adjust the mounting position according to the unevenness of the surface of the slope 2. To do that.

At this time, the hook 15b provided at one end of the holding strap 15 is attached to the reinforcing bar 11 or the net 12 in the stopper plate 10 of the individual retaining stopper 1.
Is engaged. This attachment may be performed after the soil retaining stopper 1 is installed on the slope 2, but the tip of the hook 15 b is bent in advance in a factory to be integrated with the stopper plate 10, and does not fall off from the reinforcing steel bar 11 or the net 12. It is preferable to do so.

When all the retaining stoppers 1 are attached, palm mats 16 are sequentially laid on the stopper plate 10 as shown in FIG. 4 (b), and the plants 6 such as flowers and trees are placed thereon. A suitable mixed soil 4B and a vegetation bag 4 containing fertilizer are installed.

The vegetation bag 4 is held by the retaining strap 15 so as to be pressed against the earth retaining stopper 1 and the lath net 9, but when a part of the slope 2 is extremely steep, this portion is used. As shown in FIG. 2, a vegetation bag anti-falling plate 5 may be applied to the middle part of the vegetation bag 4 installed as shown in FIG.

After the above construction method, plants 6 such as flowers and trees are cut open at the top of the vegetation bag 4 so that the roots 7 of the plants 6 can enter and planted. Also, for simplification of the construction method, the plant 6 such as a flower or a tree may be installed on the retaining stopper 1 in a state of being planted in the vegetation bag 4.

When all the plants 6 have been planted, the soil 3 is sprayed sequentially as shown in FIGS. 1 and 2 to complete a series of slope greening operations. Of course, the spraying of the soil 3 may be performed before or after the installation of the vegetation bag 4.

Also, since there is a suitable planting time for the seedlings, in the case of out of season, only the vegetation bag 4 containing the mixed soil 4B adapted to the plant 6 is installed and the soil 3 is sprayed. It is also possible to ensure the safe and secure growth of the plant 6 by implanting.

The operation of the palm mat 16 and the slope mat 17 will now be described. First, the operation of the palm mat 16 will be described.
Since the palm mat 16 is laid thereon, the running water during rainfall does not pass through as it is, but temporarily accumulates here.
Then, for a long period of time, water is kept by the palm mat 16. Fertilizer is not washed away by rain etc.
6 is held. Therefore, for example, even in the climatic conditions of continuous sunshine, the plants absorb moisture and nutrients from hair roots and the like penetrating between the fibers of the palm mat 16 and grow smoothly.

Next, the operation of the palm mat 17 for laying the slope will be described. Rain water during heavy rainfall or long rain does not flow on the slope 2 such as mortar, and the palm mat 17 for laying the slope is used.
Flows while absorbing moisture. Therefore, erosion of the soil can be prevented, and the absorbed water allows the planted plant to absorb the water even when the sunshine continues. In addition, it is effective in heat insulation in summer and heat retention in winter, and also has an effect of preventing suffocation of plant roots. By the way, when the palm mat 17 for laying the slope is not provided, the rainwater at the time of the heavy rain or the heavy rain flows at a relatively high speed between the slope 2 such as mortar and the soil 3 thereon. There is damage such as erosion of the guest soil 3. When a drain pipe 2a is provided for the slope 2 such as mortar as shown in FIG. 2, the soil 3 is washed away by drainage from the pipe 2a. However, there is a problem that a large icicle is formed in the drain pipe 2a. However, the laying of the sloping palm mat 17 disperses the discharged rainwater over the entire surface, and the above-described problem does not occur.

[0027]

The "greening method for slopes and the like" of the present invention is carried out as described above, whereby the following effects are exhibited. First, rainwater during a heavy rainfall or a long rainfall flows through the layer of the palm mat 17 for laying the slope while absorbing moisture, so that erosion of the guest soil 3 is prevented and the palm mat 17 for laying the slope is absorbed. The plant 6 can absorb the moisture even when the sunshine continues due to the moisture. In addition, it has an effect on heat insulation in summer and heat retention in winter, and has an effect of preventing suffocation of roots of the plant 6. Furthermore, when the drainage pipe 2a is provided for the slope 2, since the sloping coconut mat 17 is laid, the discharged water is scattered over the entire surface. It is possible to avoid a situation in which the sewage soil 3 is washed away due to intensive drainage, and a large icicle is formed in the drainage pipe 2a.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a slope subjected to a greening process by a greening method such as a slope of the present invention.

FIG. 2 is a longitudinal side view of a slope subjected to a greening process by a greening method such as a slope according to the present invention.

FIG. 3 is a perspective view showing an example of a shape of a stopper plate of a retaining stopper.

FIG. 4 is a skeletal front view showing an attachment arrangement of earth retaining stoppers.

FIG. 5 is a perspective view additionally showing a state before and after accommodating mixed soil in a vegetation bag.

FIG. 6 is a perspective view showing another two kinds of embodiments of a retaining stopper.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Earth retaining stopper 2 Slope 2a Drainage pipe 3 Guest soil 4 Vegetation bag 4A Fiber netting 4B Mixed soil 5 Vegetation bag anti-fall plate 5a Pin 6 Plant 7 Root 8 Spacer 9 Lath net 10 Stopper plate 11 Reinforcing reinforcing bar 12 Net Body 13 Sleeve 14 Anchor Pin 15 Retention Strap 15a Rubber Band 15b Hook 16 Palm Mat 17 Palm Mat for Slope Laying 18 Concrete Nail 19 Rigid Bar 20 Wire Mesh

Claims (3)

[Claims] 1. A soil retaining stopper is provided in a shelf shape on a slope as a construction surface, and a vegetation bag filled with mixed soil suitable for a seedling and capable of penetrating the root of the seedling is mounted on the soil retaining stopper. A method of greening a slope or the like, wherein a soil retaining stopper is provided after a water retention mat is stretched on the slope, in the method of placing the slope. 2. The greening method according to claim 1, wherein the water retention mat is a long fiber mat. 3. The revegetation method according to claim 2, wherein the long fiber mat is a coconut mat made of coconut fibers.