JP2011099302A - Planting mat and planting method using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a planting mat of a new structure, which facilitates greening of a slope ground surface with woody plants with excellent workability or transportability, and a planting method using the same. <P>SOLUTION: A plurality of nursery soil parts 14 extending in the width direction of a strip mat body 12 is provided on the porous strip mat body 12 formed of a corrosive material at intervals in the length direction of the strip mat body 12, and a root portion of a woody plant 18 is buried in and supported by the nursery soil part 14, whereby the woody plant 18 is extended outwardly from one edge portion of the width direction of the mat body 12 and held. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a planting mat used for greening sabo dams, reinforced earth walls, cuts and bank slopes, etc., and sabo dams, cuts and bank slopes using the mats. It relates to the planting method.

  Conventionally, vegetation work has been performed in which grasses and trees are planted on an inclined soil surface to greenen the inclined soil surface. Vegetation works by maintaining the appearance of the sloped soil surface in harmony with the surrounding landscape (mountain scenery, etc.), and suppressing the global warming caused by the sloped soil surface storing and exhausting solar heat. For example, it is used for greening an inclined soil surface in a sabo dam to prevent a landslide disaster, or in cutting or embankment when constructing a road or the like.

  By the way, in the past, vegetation centered on relatively small herbs has been tried to stably settle on an inclined soil surface. In order to achieve higher levels of harmony and the like, greening methods using woody materials are also attracting attention. For example, Patent Document 1 (Japanese Patent Laid-Open No. 2006-118282) and Patent Document 2 (Japanese Patent Laid-Open No. 11-131480) relate to vegetation using wood. That is, in Patent Document 1, it is proposed to drill a hole in a wall material covering an inclined soil surface to plant seedlings and the like, and in Patent Document 2, the surface of the wall material is soil or the like. It has been proposed to plant plants in the sprayed soil.

  However, in the greening methods described in Patent Documents 1 and 2, since it is necessary to plant independent seedlings and the like one by one, the time required for the planting work becomes long and the construction period is prolonged. was there. In addition, since it is necessary to transport independent seedlings and planting members to the construction site, there is a possibility that much time and labor are required for loading and unloading operations.

  In Patent Document 3 (Japanese Patent Laid-Open No. 2009-72069) and Patent Document 4 (Japanese Patent Laid-Open No. 2005-210965), a plurality of plants are planted in advance to form a greening unit, thereby solving the above problem. It has been proposed to plan. However, in the greening method described in Patent Documents 3 and 4, since it is placed or fixed on the surface of the wall material, it is difficult to prepare enough soil for the plant to settle, The root of the plant could not be supported stably. On the other hand, if an attempt is made to prepare a sufficient amount of soil, the weight of the greening unit prepared by planting in advance will increase, which may make transportation difficult and installation work extremely difficult.

JP 2006-118282 A JP-A-11-131480 JP 2009-72069 A Japanese Patent Laid-Open No. 2005-210965

  The present invention has been made in the background of the above-mentioned circumstances, and the problem to be solved is a novel, which makes it easy to green the sloped soil surface with woody materials with excellent workability and transportability. The object of the present invention is to provide a mat for planting a structure and a planting method using the mat.

  That is, according to the first aspect of the present invention, in the planting mat used for planting trees on an inclined soil surface, the porous strip-shaped mat body formed of a corrosive material, A plurality of soil portions extending in the width direction of the belt-like mat body are provided apart from each other in the length direction of the belt-like mat body, and by embedding and supporting the roots of woody materials with respect to the soil portion The wood is extended and held outward from one end edge in the width direction of the belt-like mat body.

  According to the 1st aspect, the vegetation construction of the woods with respect to the inclined soil surface was excellent by laying the planting mat in which a plurality of trees were planted on the strip-shaped mat body on the inclined soil surface. It can be done with work efficiency. Therefore, it is possible to obtain a natural landscape by planting the inclined soil surface in a relatively short construction period.

  In addition, by making the mat body provided with the soil-growing part into a strip shape, the manufacturing equipment can be made smaller and easier to manufacture than in the case of a sheet shape with a large width dimension, and stored. It is very easy to handle during (storage), transportation, and construction. In particular, storage (storage), transportation, and construction are further facilitated by folding or rolling into a roll.

  Moreover, conventionally, since trees were planted in a direction perpendicular to the surface of the sheet, the thickness of the portion supporting the root of the trees is insufficient, and the support of the trees becomes unstable. It was easy. Therefore, in the present invention, the embedding direction of the roots of the wood is the width direction of the belt-like mat body. Thereby, while being a thin mat-like planting mat excellent in workability and ease of transportation and management, strong and stable support of the roots of trees is realized.

  Furthermore, when woods are planted in a direction perpendicular to the surface of the sheet, it is extremely difficult to fold the sheet or even roll it into a roll because the woods are damaged. In the present invention, the wood is held so as to protrude from one end edge in the width direction of the belt-like mat body, so that the mat is folded in the length direction or rolled into a roll shape in the length direction. Even in this case, damage to wood can be avoided. As a result, in any of transportation, storage, and construction, handling is easier than in a conventional structure planting sheet, and vegetation construction on an inclined soil surface can be performed efficiently.

  According to a second aspect of the present invention, in the planting mat according to the first aspect, the cultivating portion is formed separately from the belt-like mat body and attached to the belt-like mat body.

  According to the 2nd aspect, the characteristic requested | required of each can be implement | achieved highly by making the material of a strip | belt-shaped mat main body and the material of a culture part mutually differ. For example, a porous, lightweight and soft belt-like mat body can be easily made compatible with a soil-growing part that can support the root part and retain nutrients.

  According to a third aspect of the present invention, in the planting mat according to the first or second aspect, a cut is formed with respect to the cultivating portion, and a root of the woody plant is formed with respect to the cut. By being sandwiched, the root part of the woody plant is supported with respect to the cultivating part.

  According to the third aspect, by adopting a structure in which the root part of the wood is sandwiched between the cultivation parts, it is possible to widen the allowable range of the shape and size of the root, and select any kind of wood And can be easily planted.

  According to a fourth aspect of the present invention, in the planting method using the planting mat, the planting mat according to any one of the first to third aspects is employed, and the above-mentioned soil cultivation part is described above. The root of the wood is supported, and the planting mat is embedded in the sloped soil surface of the civil engineering structure, and the tree trunk of the wood is attached to the sloped soil surface of the civil engineering structure. It is characterized by being planted by projecting outward.

  According to the fourth aspect, by adopting the planting mat having a structure according to the present invention, the inclined soil surface of the civil engineering structure can be efficiently greened. In addition, by embedding the mat for planting in the sloped soil surface of the civil engineering structure, the belt-like mat body tends to corrode and the roots of the trees are easily fixed on the sloped soil surface of the civil engineering structure. .

  According to a fifth aspect of the present invention, in the planting method using the planting mat according to the fourth aspect, the plurality of planting mats are separated in the tilt direction of the inclined soil surface in the civil engineering structure. It arrange | positions so that it may do.

  According to the fifth aspect, by arranging a plurality of planting mats so as to be separated in the height direction of the civil engineering structure, the inclined soil surface of the civil engineering structure can be efficiently greened over a wide range. I can do it. In particular, the number of planting mats to be laid can be reduced by appropriately setting the length of the planting mat according to the size of the civil engineering structure.

  According to a sixth aspect of the present invention, in the planting method using the planting mat according to the fourth or fifth aspect, panel construction is performed on the surface of the inclined soil surface, and the surface of the inclined soil surface is provided. A gap is provided in the joint portion of the arranged panel, and the tree trunk of the woody tree is projected outside through the gap.

  According to the sixth aspect, the inclined soil surface of the civil engineering structure can be protected by the panel, and it is avoided that the growth of the trunk of the tree is inhibited by providing a gap between the panels. The greening of the inclined soil surface is effectively realized.

  According to a seventh aspect of the present invention, in the planting method using the planting mat, the planting mat according to any one of the first to third aspects is employed, and the cultivation soil part is Supporting the root of the wood, and laying the mat for planting on a slope of cut or banking, and planting the tree trunk of the wood toward the top of the slope It is characterized by.

  According to the seventh aspect, by adopting the mat for planting according to the present invention, the slope of cut or banking can be efficiently greened. And since the mat for planting is laid with respect to the slope of cutting or embankment, the installation work of the mat for planting is also easy.

  According to an eighth aspect of the present invention, in the planting method using the planting mat according to the seventh aspect, the planting mat is laid on the slope and then sprayed onto the slope. Is.

  According to the eighth aspect, the chip and soil are sprayed on the slope and the surface of the planting mat so that the planting mat is substantially buried, so that the planting mat is decomposed and decomposed. It is possible to promote the growth of trees and settlement on sloped soils.

  ADVANTAGE OF THE INVENTION According to this invention, a greening process can be constructed | assembled by the work efficiency which was excellent with the mat for planting by which several trees were planted. And since the mat for planting is made into strip | belt shape, while being easy to manufacture, construction work and transportation are very easy. In addition, since the trees are planted in a direction parallel to the surface of the mat for planting, the roots of the trees are stabilized by the mat for planting while being easy to handle. To be supported.

The top view of the mat for planting as one Embodiment of this invention. II-II sectional drawing of FIG. It is an expanded sectional view of the mat for planting of FIG. 1, Comprising: The figure corresponded in the III-III line cross section of FIG. The front view of the sabo dam which was greened using the mat for planting shown in FIG. VV sectional drawing of FIG. The figure which shows the planar shape of the sabo dam shown in FIG. Sectional drawing which expands and shows the principal part of the sabo dam shown in FIG. Sectional drawing which expands and shows the principal part of the banking (cutting) greened using the mat for planting shown in FIG. Sectional drawing which shows the reinforced earth wall greened using the mat for planting shown in FIG. Sectional drawing which shows another one aspect | mode of the reinforced earth wall greened using the mat for planting shown by FIG.

  Embodiments of the present invention will be described below with reference to the drawings.

  First, the mat | matte 10 for planting as one Embodiment of this invention is shown by FIGS. 1-3. The planting mat 10 includes a belt-like mat main body 12 and a soil culturing unit 14. In the following description, the vertical direction refers to the vertical direction in FIG. 2, which is the thickness direction of the strip-shaped mat body 12.

  The belt-like mat body 12 as a whole has a substantially rectangular plate shape whose width dimension is sufficiently smaller than the length dimension, and is bonded with a binder using plant fibers extracted from palm shells, woods, etc. as a main raw material. For example, it is formed by non-woven forming into a predetermined shape or by forming into a predetermined shape by weaving. As is clear from this, the belt-like mat body 12 is made of a corrosive material and is decomposed by microorganisms in the soil. In addition, you may form with the synthetic resin etc. provided with the property decomposed | disassembled by soil.

  Furthermore, the belt-like mat body 12 is porous and has excellent water permeability. Thus, in rainy weather, it is possible to prevent the position of the belt-like mat body 12 from being shifted due to an increase in mass by holding rainwater more than necessary or the rainwater flowing on the surface of the belt-like mat body 12. I can do it. Preferably, the hole formed in the belt-like mat body 12 is sized so that soil particles of about 0.5 mm can enter, but it may be a minute hole that can realize water permeability.

  Furthermore, the belt-like mat body 12 has a certain amount of water content. Accordingly, a predetermined amount of rainwater is retained during rainy weather to secure water necessary for the woody material 18 described later. In addition, the fertilizer, chemical | medical agent, etc. which contribute to the growth of the woody material 18 mentioned later may be hold | maintained at the strip | belt-shaped mat main body 12 by adhesion or weaving, and those nutrients and chemical | medical agents may melt | dissolve in the secured rainwater. .

  In addition, the belt-like mat body 12 has a length dimension sufficiently larger than a width dimension, is soft and sufficiently thin, and can be rolled into a roll or folded in the length direction. Has been.

  Further, a bag-like portion 16 is integrally formed at one end of the belt-like mat body 12 in the width direction (vertical direction in FIG. 1). As shown in FIG. 3, the bag-like portion 16 is formed by a double structure in which one end in the width direction of the belt-like mat body 12 is overlapped in the thickness direction. 12 extends in the width direction. Further, the bag-like portion 16 has a length dimension from the opening to the bottom that is smaller than the width dimension of the belt-like mat body 12, and the inner space of the bag-like portion 16 is a recess-shaped accommodation region. Opened on one end face in the width direction. A plurality of the bag-like portions 16 are formed at a predetermined distance from the belt-like mat body 12 in the length direction.

  Further, the cultivating portion 14 is attached to each of the bag-like portions 16. The cultivating portion 14 is a solidified cultivated soil obtained by molding a material having excellent water permeability such as rock wool into a longitudinal block shape, and is formed separately from a material different from the belt-like mat body 12. Then, the cultivating portion 14 is fitted into the bag-like portion 16 so that the cultivating portion 14 is attached so as to extend in the width direction of the belt-like mat body 12, and the end surface of the cultivating portion 14 is externally provided through the opening of the bag-like portion 16. Exposed to. Thereby, the mat 10 for planting which the culture | cultivation part 14 was assembled | attached to the strip | belt-shaped mat main body 12 is formed. In the planting mat 10, a plurality of cultivating portions 14 are provided apart from each other in the length direction of the strip-shaped mat body 12. Preferably, fertilizers, soils, and the like are included in the material of the cultivating section 14 for the purpose of promoting the growth of the woody material 18 described later.

  The wood mat 18 is planted on the planting mat 10 having such a structure. The tree 18 is not particularly limited, but a tree that is relatively shrub and has an excellent fixing rate to the inclined soil surface 30 described later is selected. Specifically, for example, willows, eels, kihagi, holly, hiba, sakaki, salamander and the like are preferably employed. It should be noted that it is desirable that an appropriate amount of soil is attached to the root of the woody material 18 to promote the establishment of the soil in the cultivating portion 14.

  And with respect to the notch formed on the end surface exposed to the outside of the cultivating part 14, young trees or mature trees of the woody species 18 are planted, or seeds of the woody species 18 are sown. As a result, the woody material 18 is planted in the cultivating portion 14, and the root of the woody material 18 is supported by the cultivating portion 14. All the woods 18 planted in each cultivating part 14 are held so as to protrude toward one end side in the width direction of the belt-like mat body 12. In addition, after burying the cultivation part 14 by which the woody material 18 was planted or sown in soil and growing the woody material 18 to some extent, the cultivation part 14 is moved to the bag-like part 16 of the belt-like mat body 12. The woody material 18 may be planted in the planting mat 10.

  By the way, the planting mat 10 planted is used for greening of the sabo dam 20 as a civil engineering structure as shown in FIGS. The sabo dam 20 is provided so as to dam up gravel in a valley or the like, and a pair of wall surface materials 22, 22 erected so as to face each other on the upstream side and the downstream side are a plurality of tie rods 24, 24. ,... Are connected to each other, and a filling material 26 such as soil is filled between the opposing surfaces of the pair of wall surface materials 22, 22. 4 to 7 and FIGS. 8 and 9 described later, the planting mat 10 is illustrated in an enlarged manner so that the arrangement state of the planting mat 10 becomes clear.

  The wall surface material 22 is formed by combining a plurality of rectangular panels 28 formed of, for example, a hard mesh-like panel such as expanded metal. Note that the mesh of the rectangular panel 28 is made large enough not to hinder the growth of the tree 18.

  Further, between the opposing surfaces of the wall material 22, the filling material 26 is filled while being compacted by rolling, and the wall material 22 is superimposed on the inclined soil surface 30 of the filling material 26. In particular, in the present embodiment, the filling material 26 is filled and rolled in steps according to the height of the panel 28, and the filling material 26 is layered.

  Furthermore, after filling the filling material 26, the top end member 32 is disposed above the wall surface materials 22, 22 and the filling material 26. The top end member 32 is made of reinforced concrete and has a substantially block shape, and is disposed so as to cover the entire upper surfaces of the wall surface materials 22 and 22 and the filling material 26. Further, a concave groove 34 is formed in the center portion in the width direction of the top end member 32 so as to open upward and extend in the opposing direction of the pair of wall surface materials 22 and 22.

  Further, a sucking prevention material 36 is laid on the surface of the filling material 26. The suction preventing material 36 is a non-woven fabric of long fibers formed of polyester fiber or the like, and a plurality of rectangular sheet-like materials are attached to the surface of the filling material 26, so that the inclined soil surface 30 of the filling material 26 is formed. The containing surface is covered over substantially the entire surface. In addition, you may cover the surface of the filling material 26 with the uniform suction prevention material 36 over the whole, for example, it replaces with a long-fiber nonwoven fabric in a part of downstream, and the greening which planted herbs A sheet may be adopted.

  The sabo dam 20 having such a structure is greened using the mat 10 for planting. That is, a plurality of planting mats 10 are embedded in the filling material 26, and the trees 18 planted on the planting mat 10 are planted on the inclined soil surface 30 of the sabo dam 20. Yes.

  More specifically, the plurality of planting mats 10 are arranged so as to be sandwiched between the front and back sides of the filling material 26 between the layers of filling material 26 filled in stages. . In the mat 10 for planting, the belt-like mat body 12 is supported by the filling material 26, and the opening of the bag-like portion 16 has the inclined soil surface 30 (wall materials 22, 22 overlap each other). Open to the front and back). Further, by laying and supporting the planting mat 10 between the layers of the filling material 26, the predetermined distance from each other in the inclined direction of the inclined soil surface 30, in other words, the height direction of the sabo dam 20 is obtained. A plurality of mats 10 for planting are arranged with a gap therebetween.

  Furthermore, the tree trunk of the tree 18 has a smaller diameter than the mesh of the rectangular panel 28, and the tree 18 planted on the planting mat 10 penetrates the wall surface material 22 formed by the rectangular panel 28. And it protrudes to the outside. Thereby, the woods 18 planted in the cultivating section 14 are arranged so as to protrude from the inclined soil surface 30 of the filling material 26 and extend onto the surface of the wall surface material 22, and the front surface of the sabo dam 20 The back is greened by the woody species 18. In the present embodiment, an insertion portion using the mesh of the rectangular panel 28 is provided in the joint portion of the panel 28 to be combined, and the wood 18 protrudes through the wall material 22 through the insertion portion. ing. Moreover, the woody material 18 may be planted in advance before the planting mat 10 is embedded in the filling material 26, or after the strip-shaped mat body 12 is embedded in the filling material 26, the woody material 18. The cultivating part 14 in which the plant 18 is planted may be fitted into the bag-like part 16 of the belt-like mat body 12.

  In the planting mat 10 having such a structure, a plurality of trees 18 are planted on a mat body 12 having a strip shape. Therefore, by laying the belt-like mat body 12, a plurality of trees 18 can be vegetated at a time, and replanting with the trees 18 can be carried out with excellent work efficiency.

  Moreover, the mat 10 for planting is formed into a thin mat shape as a whole and is formed of a flexible material. Therefore, it can be rolled into a roll or folded, and management in a warehouse, transportation to a construction site, and laying work are both extremely easy. In particular, by rolling into a roll shape, the mat 10 for planting can be easily developed, and simplification of the laying operation is realized more advantageously.

  Further, the cultivating portion 14 is arranged in the surface direction of the strip-shaped mat body 12 so as to protrude from one end of the strip-shaped mat body 12 in the width direction. The mat body 12 is planted so as to protrude in the width direction. Therefore, the root portion of the tree 18 is reliably supported while the planting mat 10 has a thin mat shape, and the vegetation of the tree 18 can be effectively realized.

  Further, the planting part of the woody material 18 is a cultivating part 14 that is separate from the belt-like mat body 12. Therefore, both of the belt-like mat body 12 and the cultivating portion 14 that require different characteristics can satisfy the required characteristics to a high degree. Specifically, for example, a lightweight and flexible material is selected in the belt-like mat body 12 to facilitate handling, and a material excellent in water retention is selected in the cultivating portion 14 to A stable water supply can be realized.

  Further, the woody material 18 is supported by the root portion being sandwiched by the notch formed in the cultivating portion 14. According to this, it becomes possible to select any kind of woody tree 18 and to make it easily vegetated. In addition, the cultivating part 14 is divided | segmented into two, and the root part of the woody thing 18 may be inserted | pinched between those division bodies.

  Further, as the root part of the tree 18 grows, it gradually enters from the inclined soil surface 30, and the filling material 26 is bound and reinforced by the root of the tree 18. As a result, the durability of the sabo dam 20 is improved. In particular, by planting the woody plant 18 whose root portion develops more than the herbaceous plant, a binding effect can be obtained advantageously and an improvement in durability is effectively realized.

  Further, since the belt-like mat body 12 is formed of plant fibers such as coconut cocoons that are corrosively decomposed by the soil, the belt-like mat body 12 is decomposed in the long term, and the trees 18 are inclined to the inclined soil surface. It becomes easy to fix to 30, and the inclined soil surface 30 is fertilized. In this way, by forming the belt-like mat body 12 with a corrosion-decomposable material, it is possible to promote the progress of greening by the trees 18.

  Further, the wall material 22 is formed by combining a plurality of panels 28, and each panel 28 is formed of expanded metal or the like, and an insertion portion for the wood 18 is provided at a joint portion of the panels 28. Yes. Thereby, the surface of the inclined soil surface 30 can be protected by the wall material 22 and the surface of the wall material 22 can be greened by the woody material 18 rooted in the filling material 26 formed of soil. As a result, the sabo dam 20 having excellent durability can be obtained, and the protection of the landscape and the environment can be realized at a high level by vegetation of the trees 18 corresponding to the surrounding natural environment.

  In addition, the woody species 18 are more excellent in natural recovery ability than herbs, and have a high possibility of recovery even when damaged by food damage caused by deer or the like. Therefore, maintenance after greening is relatively easy and vegetation can be maintained over a long period of time.

  Next, FIG. 8 shows another aspect of the greening process using the planting mat 10. In other words, in FIG. 8, a plurality of planting mats 10 are laid on the slope 42 (inclined soil surface) of the embankment (cutting) 40, so that the trees on the slope 42 of the embankment (cutting) 40. Greening work by 18 is given.

  That is, the mat 10 for planting is arranged so that the bag-like portion 16 of the belt-like mat main body 12 opens toward the upper side in the slope direction of the slope 42, and is parallel to the plane of the slope 42 and orthogonal to the slope direction. It is laid to extend in the direction of. Thereby, the woods 18 planted in the cultivating part 14 fitted in the bag-like part 16 are supported so that the tree trunk part extends upward in the inclination direction of the slope 42. A plurality of planting mats 10 are arranged adjacent to each other in the inclined direction, and the slope 42 is covered with the planting mat 10 over substantially the entire surface. The planting mat 10 may be simply placed on the slope 42, or may be fixed with a nail, a pile or the like when the slope is steep. Further, before the planting mat 10 is laid, the suction preventing material 36 may be laid on the slope 42.

  A chip layer 44 is formed on the inclined soil surface 30 on which the planting mat 10 is laid. The chip layer 44 is formed by spraying a mixture of sawdust and thinned wood processed into chips and soil on the surfaces of the mat 10 for planting and the slope 42. Although the planting mat 10 is covered with the chip layer 44, a large number of gaps are formed in the chip layer 44, and the growth of the woody material 18 is greatly inhibited by the chip layer 44. Can be avoided. Further, a mat-like or lattice-like sloped surface protecting material or the like may be laid instead of the chip layer 44 or may be employed in combination with the chip layer 44.

  According to the slope revegetation of the embankment (cut) 40 using such a planting mat 10, the easy-to-handle planting mat 10 is laid on the surface of the slope 42 by a very simple method. This class 18 can be vegetated.

  Further, by covering the planting mat 10 and the slope 42 with the chip layer 44, the wood is corroded in the chip layer 44, so that a fertile soil layer is formed and nutrients are supplied to the trees 18. Therefore, it is possible to promote the growth of the woody species 18 and fix it on the slope 42.

  Next, FIG. 9 shows another aspect of the greening work using the planting mat 10. In other words, in FIG. 9, a plurality of planting mats 10 are disposed on the reinforced soil wall 46, so that the surface of the reinforced soil wall 46 is greened with the wood 18.

  As is generally well known, the reinforced earth wall 46 has a wall material 50 arranged so as to cover the slope of the embankment 48 to resist the earth pressure of the embankment 48 by the reinforcing material 52 embedded in the embankment 48. It is a retaining structure designed to be supported.

  The wall surface material 50 is formed of a metal panel such as an expanded metal or a welded wire mesh, a concrete panel, a concrete block, or the like.

  The reinforcing member 52 is formed of a band-like or mesh-like metal material, a rod with an anchor plate, a lattice-like or planar panel (geotextile) formed of a polymer material, and the like. It is fixed. In the embodiment shown in FIG. 9, the wall surface material 50 and the reinforcing material 52 are both steel lattice panels, and the wall surface material 50 and the reinforcing material 52 are integrally formed. Further, the wall surface material 50 spreads substantially parallel to the slope of the embankment 48, and the reinforcing material 52 spreads substantially horizontally. The paper surface in FIG. 9 has a substantially constant L-shaped or wedge-shaped cross section as a whole. It extends in the orthogonal direction.

  The wall material 50 is superimposed on the slope of the embankment 48, and the reinforcing material 52 is embedded in the embankment 48, whereby the wall material 50 is caused by the frictional resistance acting between the reinforcing material 52 and the embankment 48. The slope of the embankment 48 is reinforced and supported against the earth pressure of the embankment 48. Furthermore, by overlapping a plurality of wall surfaces 50 in a direction parallel to the slope of the embankment 48, substantially the entire slope is covered and protected by the wall surface 50, and each Reinforcing materials 52 integrally formed with the wall surface material 50 are spaced apart in the vertical direction and are all embedded in the embankment 48. In FIG. 9, a road surface portion 54 made of asphalt is provided on the upper end surface of the embankment 48. Preferably, a sheet-like sucking prevention material or the like is disposed so as to cover the slope of the embankment 48.

  The mat 10 for planting according to the present invention is disposed on the reinforced earth wall 46 having such a structure. In other words, the planting mats 10 were respectively laid on the upper surface of the embankment material placed on the reinforcing members 52, and the woods 18 planted on the planting mats 10 were formed in a lattice shape. It is made to project on the wall surface of the reinforced earth wall 46 through the opening of the wall surface material 50.

  The planting mat 10 is laid in a stepwise manner together with the stacking of the reinforcing material 52 and the embankment process when the reinforcing earth wall 46 is constructed. That is, the reinforced earth wall 46 is formed by cutting the slope forming the reinforced earth wall 46 and stacking the reinforcing materials 52 one by one sequentially from the lower stage, and at the same time embedding on the upper surface of each reinforcing member. In such a construction process of the reinforced earth wall 46, after the reinforcing material 52 is installed and embanked on the reinforcing material 52, before the next-stage reinforcing material 52 is stacked, a planting mat is formed on the top end surface of the embankment 48. By laying 10, greening using the mat 10 for planting is performed on the reinforced soil wall 46.

  Thus, the mat 10 for planting is applicable also to the wall planting work of the reinforced earth wall 46, for example, expand | deploying the mat 10 for planting put together in roll shape in the paper surface orthogonal direction in FIG. Thus, the woody material 18 can be vegetated by simple transportation work and laying work.

  As the reinforcing soil wall, in addition to the above-mentioned tail arme method that uses the pulling resistance force due to frictional resistance with the embankment, a reinforcing material provided with an anchor plate on a bar is embedded in the embankment to support the anchor plate. Acting between geotextile and embankment by using a multi-anchor type reinforced earth wall construction method that supports the wall material by using the pulling resistance force of the bar due to pressure resistance, etc., and embedding geotextile in the embankment It is also possible to employ a geotextile reinforced earth wall construction method in which the wall material is supported by using the pulling resistance force due to frictional resistance. Moreover, it is also possible to employ | adopt a plate-shaped panel as a wall surface material, In that case, the woody thing 18 can be protruded through this notch by providing a notch in the upper end part of a wall surface material. I can do it.

  Moreover, like the reinforced soil wall 56 shown in FIG. 10, the planting mat 10 is formed on the top surface of the reinforcing material 52 before, for example, embankment on the reinforcing material 52 or backfilling with backfilling soil. It can also be laid so as to overlap. The planting mat 10 may be laid on the reinforcing material 52 at the construction site, or may be attached on the reinforcing material 52 in advance.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited by the specific description. For example, in the above-described embodiment, the belt-like mat body 12 and the soil-growing portion 14 are formed separately. However, the belt-like mat body and the soil-growing portion may be formed integrally, or the material of the belt-like mat body may be used. By selecting appropriately and providing a function as cultivating soil, the cultivating portion can be constituted by a part of the belt-like mat body.

  In addition, the mat 10 for planting is not necessarily limited to the one in which only the woods 18 are planted. For example, the plant mats are planted on the strip mat body 12 by sowing the strip mat body 12. Alternatively, it may be used in combination with the woods 18.

  Further, the belt-like mat body 12 does not necessarily have to be integrally formed with a belt-like shape. For example, a plurality of mat bodies made into small pieces are connected with the cultivating portion 14 sandwiched therebetween, thereby forming a belt-like mat as a whole. A mat body may be formed. In that case, a plurality of mat main bodies may be connected via a cylindrical accommodating portion that accommodates the cultivating portion 14.

  Moreover, in the said embodiment, although the culture part 14 was accommodated in the bag-like part 16 of the strip | belt-shaped mat main body 12, the attachment means to the strip | belt-shaped mat main body of a culture | cultivation part is not specifically limited. . Specifically, for example, the band-shaped mat body may be bound with a string or a wire, or may be bonded with an adhesive. Moreover, it can also attach by forming a notch with respect to the culture soil part and inserting the width direction edge part of a strip | belt-shaped mat main body in the notch.

10: mat for planting, 12: strip mat body, 14: cultivation section, 18: wood, 20: sabo dam (civil structure), 28: panel, 30: inclined soil surface, 40: embankment (cutting) ), 42: slope, 44: chip layer

Claims (8)

In the planting mat used to plant trees on the sloped soil surface,
With respect to the porous strip-shaped mat body formed of a corrosive material, a plurality of culture sections extending in the width direction of the strip-shaped mat body are provided apart from each other in the length direction of the strip-shaped mat body, The wood is extended and held outward from one edge in the width direction of the belt-like mat body by embedding and supporting the root of the wood with respect to the culture portion. Planting mat.   The planting mat according to claim 1, wherein the cultivating portion is formed separately from the belt-like mat body and attached to the belt-like mat body.   A cut is formed with respect to the cultivated portion, and the root of the wood is sandwiched between the cut and the root of the wood is supported with respect to the cultivated portion. The planting mat according to claim 1 or 2.   Adopting the planting mat according to any one of claims 1 to 3, and supporting the root of the woody material with respect to the cultivated soil part, and against the inclined soil surface in the civil engineering structure The planting mat is characterized in that the planting mat is embedded and planted by projecting the tree trunk portion of the trees from the inclined soil surface of the civil engineering structure. Planting method.   The planting method using the planting mat according to claim 4, wherein a plurality of the planting mats are arranged so as to be separated in an inclination direction of the inclined soil surface in the civil engineering structure.   A panel is constructed on the surface of the sloped soil surface, a gap is provided in a joint portion of the panel disposed on the surface of the sloped soil surface, and the tree trunk portion of the trees is projected outside through the gap. A planting method using the planting mat according to 4 or 5.   Adopting the planting mat according to any one of claims 1 to 3, and supporting the root of the woody plant with respect to the cultivated soil part, and cutting and planting the planting mat A planting method using a mat for planting, wherein the plant is laid on a slope and planted with the trunk portion of the wood facing upward of the slope.   The planting method using the planting mat according to claim 7, wherein the planting mat is sprayed on the slope after the planting mat is laid on the slope.

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