JP2010242422A - Greening stone-filled cage structure and greening retaining wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a greening stone-filled cage structure excellent in both functions of a slope-reinforcing function and a greening function. <P>SOLUTION: Broken stones 3 are packed into the wire-netted stone-filled cage 2, on the upper surface of which a water-absorbing and water-retaining base mat 4 is disposed. On the base mat 4, a vegetation mat 5 planted with vegetable seedlings or seeds are placed to form the greening stone-filled cage structure 1A. Part of the base mat 4 is folded along the side faces of the stone-filled cage 2 to form a water-absorbing part 4a for absorbing the water from the soil by contacting with the soil near the stone-filled cage. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a greening stone wall structure suitable for slope protection with greening, and a greening retaining wall constructed from this stone wall structure.

In slope protection works such as revetment work, road shoulder work, or reinforcement work on slopes, stonework made of wire mesh such as gabion or futon bream is usually used. This stone custody is a circular or quadrangular wire netting container that is installed on the site with crushed stones inside, such as embankments, shoulders, or mountain slopes. In such a natural environment, it is often desirable to make the stone clogs less noticeable by greening. Patent Document 1 and Patent Document 2 show an example in which a square stone claw is used for slope protection work.
However, as described above, the stone-filled rice cake filled with chestnut stone is excellent in water permeability but has little water retention, so it is almost impossible to plant and grow it directly. For this reason, it is required to devise measures for greening the stone-sealed potatoes.

No. 7-499 No. 7-28181

  The technical problem of the present invention is to provide a greening stone packed cocoon structure that is superior not only in a slope reinforcing function but also in a greening function, and a greening retaining wall constructed with this stone packed cocoon structure. It is in.

  In order to achieve the above-mentioned object, the stone-filled cocoon structure for greening of the present invention is provided with a base mat having water absorption and water retention on the upper surface portion of a wire-mesh stone-filled jar filled with chestnut stone, On this base mat, a vegetation mat in which plant seedlings or seeds are planted is placed, and a part of the base mat is in contact with the soil in the vicinity of the stone paddle to absorb water in the soil Is provided.

In the present invention, it is preferable that a part of the base mat is bent along the side surface of the stone paddle and the bent part is the water absorbing part.
In this case, the stone paddle is composed of a container-shaped trunk net having an open upper surface and a lid net covering the upper surface of the trunk net, and the base mat is placed on the chestnut filled in the trunk net. And the vegetation mat are disposed so as to overlap each other, and even if these base mats and vegetation mats are covered with the lid mesh from above, the base mat and the vegetation mat are disposed so as to overlap each other on the upper surface of the lid mesh. In addition, these base mats and vegetation mats may be fixed to the stone paddle with a fixing member.
In the present invention, the base mat is formed by filling a water-retaining material in a porous outer skin made of a fiber sheet.

  In addition, the retaining wall for greening of the present invention is formed by stacking the stone-packed cage structure in a plurality of stages up and down while shifting the position of each other, and the base mat is an upper stage on the upper surface of each stone-packed basket. The vegetation mat is disposed on the base mat in the exposed portion of the upper surface of each stone crush. .

  According to the present invention, by combining a stone paddle filled with chestnut stone, a vegetation mat, and a base mat having a water-absorbing part, the stone paddle that is superior not only in a slope reinforcement function but also in a greening function A structure can be obtained. Moreover, a retaining wall for greening can be constructed by using this stone-clad cocoon structure.

It is a perspective view which shows 1st Embodiment of a stone-packed cage | basket structure. FIG. 2 is a cross-sectional view taken along the longitudinal direction of the stone-packed cage structure of FIG. It is sectional drawing along the transversal direction of the stone packed bowl structure of FIG. It is a fragmentary sectional view of a base mat. It is a perspective view which shows 2nd Embodiment of a stone candy structure. It is sectional drawing along the transversal direction of the stone-packed cage structure of FIG. It is a top view which shows 3rd Embodiment of a stone-packed cage | basket structure. It is sectional drawing along the transversal direction of the stone-packed cage structure of FIG. It is sectional drawing of the retaining wall constructed | assembled with the stone-packed cage | basket structure of FIG.

  1 to 3 show a first embodiment of a stone-filled gutter structure for greening according to the present invention. This stone-packed cocoon structure 1A is made of a metal mesh, preferably a diamond-shaped metal mesh, filled with chestnut stone 3 therein, and a base mat 4 and a vegetation mat disposed on the upper surface of the stone-packed cage 2 5 is formed.

The stone cradle 2 is composed of a shell container 7 having a rectangular container shape whose upper surface is open, and a cover mesh 8 that closes the upper surface of the shell mesh 7. The plan view shape of the shell mesh 7 and the cover mesh 8 is as follows. Is a rectangle that is long in one direction.
The trunk net 7 includes a bottom net 10 having a rectangular shape that is long in one direction, opposed first and second side nets 11 and 12 connected to the long sides of the bottom net 10, and the bottom net 10. It consists of opposing third and fourth side nets 13, 14 connected to the short side. Accordingly, the lateral length of the first and second side nets 11 and 12 is longer than the lateral length of the third and fourth side nets 13 and 14.

When forming the trunk mesh 7, the bottom mesh 10 and the side meshes 11, 12, 13, 14 are formed separately, and the bone wires 16 attached around each of them are connected to each other by a wire, a clip, a screw stopper or the like. Even if the trunk net 7 is formed by connecting with the connecting metal fitting 17, the bottom net 10 and the first and second side nets 11 and 12 are formed in series with one rhombus metal mesh, The trunk net 7 may be formed by forming the third and fourth side nets 13 and 14 separately and assembling them into a container shape.
Further, the connection between the trunk net 7 and the lid net 8 is performed by connecting a bone line 18 attached around the lid net 8 and a bone line 16 attached to the upper ends of the side nets 11, 12, 13, and 14. It is performed by connecting with the connecting bracket 17 described above.

  As shown in FIG. 4, the base mat 4 is formed by filling a water retaining material 21 in a hollow outer skin 20 made of a flexible fiber sheet having a porous property such as a woven fabric or a nonwoven fabric and having water absorption and water retention. The formed mat has a rectangular flat plate shape, and has good water absorption and water retention as a whole mat and moisture permeability by capillary action.

Examples of the water retaining material 21 include ordinary earth and sand, and porous granular soil used in hydroponics of foliage plants (hydroculture), which are mixed individually or in appropriate amounts. Used in. The shape of the water retaining material 21 is not particularly limited as long as it can be formed into a flat plate shape as a whole mat, such as a granular shape, a powder shape, or a rod shape. Furthermore, a highly water-absorbing polymer material that has recently been used as a soil water retaining material for greening deserts can also be used. Alternatively, an appropriate amount of the superabsorbent polymer material can be used by mixing it with ordinary soil or porous granular soil.
In addition, in the above-mentioned granular soil, there are those in which the viscosity is heated and foamed to form particles, those in which charcoal is granulated, those using natural zeolite, and the like, which are preferable when they are used as the water retention material 21. The particle size is about 1 to 5 mm. If it is smaller than 1 mm, there is a possibility of flowing out of the outer skin 20, which may cause a problem in long-term stability. Moreover, when it becomes larger than 5 mm, a clearance gap may become large too much and may deteriorate water retention performance. More preferably, it is about 2 to 3 mm. If it is within this range, the particle size is made uniform, and long-term stability and water retention performance can be further improved.
The thickness of the base mat 4 is preferably equal to or greater than the vegetation mat 5.

  On the other hand, the vegetation mat 5 is obtained by planting plant seedlings or seeds on a flexible fibrous sheet having a porous property such as a nonwoven fabric and having water absorption and water retention. The plant used here is preferably a plant whose rhizome crawls near the ground surface, such as turf.

The base mat 4 is disposed on the chestnut 3 filled inside the trunk net 7 so as to cover the entire chestnut, and the vegetation mat 5 is placed on the base mat 4. . The lid net 8 is attached to the upper surface of the trunk net 7 so as to cover the base mat 4 and the vegetation mat 5. Therefore, although the base mat 4 and the vegetation mat 5 are disposed inside the stone cradle 2, the disposition position is substantially the upper surface portion of the stone cradle 2.
The base mat 4 and the vegetation mat 5 may be connected to each other by a connection fitting such as a wire.

  A part of the base mat 4 is folded downward along the side net, that is, the side surface of the stone cradle 2 inside any side net of the stone cradle 2, and the water absorbing portion 4 a is formed by the folded portion. Is formed. The direction in which a part of the base mat 4 is bent is required to be a side part where the stone paddle 2 is in contact with the soil 23 on the slope, and in the example shown in FIG. It is bent along the second first side net 11.

When the water-absorbing portion 4a is installed on the slope as shown in FIG. 9 and the retaining wall 22 is constructed as shown in FIG. 9, the water-absorbing portion 4a comes into contact with the soil 23 in the vicinity (for example, the back surface) of the stone-packed cage 2, It plays the role of absorbing moisture in the soil 23 and taking it into the base mat 4. The moisture naturally contains various nutrients useful for plant growth.
The preferred vertical width H of the water absorbing portion 4a varies depending on the size (height) of the stone claw 2 but is usually about 1/3 to 2/3 of the height of the side net 11. preferable. However, the water absorbing portion 4 a may extend over the entire height of the side surface network 11.

The base mat 4 and the vegetation mat 5 are not always arranged on the entire upper surface of the stone claw 2 as shown in FIGS. Depending on the situation, it may be arranged only on a part of the upper surface of the stone claw 2.
Further, the base mat 4 and the vegetation mat 5 do not have to be a single piece, and at least one of them may be divided into a plurality of pieces. For example, a plurality of base mats 4 and / or vegetation mats 5 formed in an elongated strip shape can be arranged side by side.
However, the vegetation mat 5 is always disposed on the base mat 4, and the water absorbing portion 4 a is formed on a part of the base mat 4.

FIG. 9 shows a retaining wall 22 for greening constructed using the above-described stone-packed ridge structure 1A. The retaining wall 22 is formed in a stepped shape by stacking a plurality of stone packed casket structures 1A in two upper and lower stages, and each stone packed casket structure 1A includes a second side net 12 as a retaining wall. The first side net 11 is directed to the back side of the retaining wall 22, and the upper stone cradle structure 1 </ b> A is directed to the rear side of the retaining wall 22 from the lower stone cradle structure 1 </ b> A. It is arranged in a shifted state, and the back surface of the retaining wall 22 is filled with soil (soil 23) so as to come into contact with the back surface of each stone-packed casket structure 1A, that is, the first side net 11.
Although a plurality of the above-mentioned stone-packed cocoon structures 1A are also connected in the left-right direction (the direction of the third and fourth side nets 13, 14), their illustration is omitted.

  Among the stone packed casket structures 1A arranged in two upper and lower stages, the upper stage stone packed casket structure 1A has the same configuration as that shown in FIGS. That is, in the upper stone claw structure 1A, the base mat 4 and the vegetation mat 5 are disposed on almost the entire upper surface of the stone crush 2 and the water absorbing portion 4a of the base mat 4 is the stone clog. 2 formed on the side of the first side net 11, and the water absorbing portion 4 a is in contact with the above-mentioned embankment, that is, the soil 23, which has entered the stone clog 2 through the mesh.

  On the other hand, in the lower stage stone claw structure 1A, the base mat 4 is disposed on almost the entire upper surface of the stone crush box 2, but the vegetation mat 5 is arranged on the upper stage of the upper side of the stone claw box 2. It is disposed only in the exposed portion and its vicinity that are not covered with the stone packed urn structure 1A. The water absorption part 4a of the base mat 4 is in contact with the soil 23 that has entered the stone clog 2 on the back side of the stone clog structure 1A as in the case of the upper stone clog structure 1A.

  In the retaining wall 22 thus formed, plant seedlings or seeds planted on the vegetation mat 5 of each stone-packed cocoon structure 1A are supplied with moisture directly from the base mat 4 or through the vegetation mat 5, The vegetation mat 5 and the base mat 4 are grown while being rooted between the vegetation mat 5 and the base mat 4 and the inside of the base mat 4 through the outer skin 20, and the entire retaining wall 22 is greened. At this time, the base mat 4 also serves as a breeding bed for the plant to grow with roots. However, the water absorbing portion 4a in contact with the soil 23 absorbs moisture from the soil 23 to thereby enter the inside. Since water is constantly replenished, water can be stably supplied to the plant, and it functions effectively for a long time for plant growth. Moreover, since the moisture in the base mat 4 is stored in the water retention material 21, even if the moisture in the soil 23 is insufficient for a certain period due to light rain or the like, the moisture from the water retention material 21 can be supplied to the plant during that period. it can.

The base mat 4 may be provided with a plurality of elongated strips arranged side by side, and the vegetation mat 5 may be divided into a plurality of pieces.
Further, in the lower stone claw structure 1A, the base mat 4 is disposed only on the exposed portion of the upper surface of the stone claw 2 and in the vicinity thereof, and along the left or right side or both side surfaces of the stone custody 2 The water absorption part 4a can also be provided.

  The retaining wall 22 can also be formed by stacking stone packed bowl structures 1A in three or more stages. In this case, the base mat 4 and the vegetation mat 5 are arranged in the same manner as the second stage stone packed fence structure in FIG.

5 and 6 show a second embodiment of the stone packed bowl structure. The stone claw structure 1B according to the second embodiment is different from the stone claw structure 1A according to the first embodiment in that the water absorbing portion 4a of the base mat 4 is outside the stone claw 2. Yes.
In other words, in the stone packed bowl structure 1B of the second embodiment, the end of the base mat 4 is led out to the outside of the stone packed bowl 2, and the derived portion is on the outer surface of the side net 11 of the stone packed bowl 2. The water absorption part 4a is formed by being bent downward along the line. In this case, in order to connect the upper end portion of the first side net 11 covered with the base mat 4 and the end portion of the lid net 8, a connecting portion comprising a hole or a slit or the like in a part of the base mat 4. A notch 25 is provided, and the bone line 16 at the upper end of the first side net 11 and the bone line 18 at the end of the lid net 8 are connected through a notch 25 by a connecting metal fitting 24 made of a clip or a wire. . However, without providing such a notch 25 in the base mat 4, the end of the lid net 8 and the middle or lower end of the first side net 11 are connected to a wire or the like passing over the water absorbing part 4 a. You may connect with metal fittings.

Since the other configurations of the second embodiment are substantially the same as those of the first embodiment, the same reference numerals as those of the first embodiment are assigned to the same main components, and the description thereof is omitted.
Also in the second embodiment, as in the first embodiment, the base mat 4 and the vegetation mat 5 are part of the upper surface of the stone claw 2 depending on the installation mode of the stone crush structure 1B. It may be arranged only.

7 and 8 show a third embodiment of the stone packed bowl structure. The stone packed urn structure 1C of the third embodiment has the above-described first and second embodiments in that the base mat 4 and the vegetation mat 5 are disposed on the outer upper surface of the stone packed ridge 2. This is different from the stone-packed cocoon structures 1A and 1B.
That is, in the stone packed urn structure 1C of the third embodiment, the base mat 4 is disposed on the outer surface of the lid net 8, and the vegetation mat 5 is disposed on the base mat 4 in an overlapping manner. . Further, a part of the base mat 4 is bent downward along the first side face net 11, that is, the side face of the stone claw 2, outside the first side face net 11 of the stone claw 2. The water absorption part 4a is formed by the part.
And the polymer of the said base mat 4 and the vegetation mat 5 was spanned between the side net | network 11,12 or 13,14 which opposes across the upper surface of this polymer to a longitudinal direction and a transversal direction. It is fixed to the stone bowl 2 by a fixing member 26 made of a plurality of wires.

Since the configuration of the third embodiment other than the above is substantially the same as that of the first embodiment, the same reference numerals as those of the first embodiment are assigned to the same main components, and the description thereof is omitted.
Also in the second embodiment, as in the first embodiment, the base mat 4 and the vegetation mat 5 are part of the upper surface of the stone crush 2 depending on the installation mode of the stone crush structure 1C. It may be arranged only.

  Further, instead of fixing the base mat 4 and the vegetation mat 5 with the wire fixing member 26 as in the third embodiment, a wire netting restraining net of the same size as the stone crabs is formed on the vegetation mat 5. A plate may be covered, and the periphery of the mesh plate may be connected and fixed to an appropriate position of the stone cradle 2 with a metal fitting such as a wire. In this case, the mesh plate forms the fixing member 26. The same mesh plate as the lid mesh 8 can be used as this mesh plate, but the mesh may be larger than the lid mesh 8.

  In each of the above embodiments, the water absorbing portion 4a of the base mat 4 is formed along the first side net 11 of the stone cradle 2, but the installation mode of the stone cradle structures 1A, 1B, 1C Some may be formed along other side nets. In other words, in the installation mode in which the third or fourth side net 13 or 14 of the stone crush 2 is in contact with the soil 23, the water absorbing portion 4a is along the third or fourth side net 13 or 14. Will be formed. Alternatively, when the stone crust structure is installed in such a manner that a plurality of side nets of the stone crush 2 come into contact with the soil 23, the water absorption part 4 a along all the side nets in contact with the soil 23. May be formed.

  Moreover, when the water absorption part 4a of the base mat 4 is provided outside the stone custody 2 as in the second or third embodiment, the water absorption part 4a is not necessarily along the side net of any one of the stone crocks 2. It is not necessary to bend, and it may extend with an angle between the side nets. When the angle is substantially 90 degrees, the water absorbing portion 4a extends from the base mat 4 to the side of the stone claw 2 almost straight. Thus, if an angle is provided between the water absorption part 4a and a side surface net | network, since both surfaces of this water absorption part 4a will contact the soil 23, the absorptivity of the water | moisture content from the soil 23 will become good.

DESCRIPTION OF SYMBOLS 1A, 1B, 1C Ishizume mushroom structure 2 Ishizume mushrooms 3 Kuriishi 4 Base mat 4a Water absorption part 5 Vegetation mat 7 Trunk net 8 Lid net 20 Outer skin 21 Water retaining material 22 Retaining wall 23 Soil 26 Fixed member

Claims (6)

  A base mat having water absorption and water retention is arranged on the upper surface of a wire mesh stone crust filled with chestnut stone, and a vegetation mat planted with plant seedlings or seeds is placed on the base mat. And a water absorption part that absorbs moisture in the soil in contact with the soil in the vicinity of the stone paddle in a part of the base mat.   2. The stone claw structure according to claim 1, wherein a part of the base mat is bent along a side surface of the stone claw, and the bent portion forms the water absorption part. 3.   The stone paddle is composed of a container-shaped trunk net whose upper surface is open, and a lid net that closes the upper surface of the trunk net, and the base mat and the vegetation mat on the chestnut filled in the trunk net And the base mat and the vegetation mat are covered with the lid net from above.   The stone paddle is composed of a container-shaped trunk net whose upper surface is open and a lid net that closes the upper surface of the trunk net, and the base mat and the vegetation mat are arranged on the upper surface of the lid net. The base mat and the vegetation mat are fixed to the stone paddle with a fixing member, and the stone paddle structure according to claim 1 or 2.   5. The stone-clad structure according to claim 1, wherein the base mat is formed by filling a water-retaining material in a porous outer skin made of a fiber sheet.   It is formed by stacking a plurality of steps of the stone-packed cage structure according to any one of claims 1 to 5 up and down while shifting the position, and the base mat is an upper step on the upper surface of each stone-packed cage The vegetation mat is disposed on the base mat in the exposed portion of the upper surface of each stone crush. Retaining wall characterized by that.

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