JP2007297889A - Slope planting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slope planting method capable of promoting the grow of plants. <P>SOLUTION: When a plurality of planting anchors 4 each including an anchor member 2 fixed to a slope 1 and a sheathing board 3 fixed to the anchor member 2 are fixed to the slope 1 at intervals and a foundation material 5 is sprayed to the slope 1, the foundation material 5 is sprayed so that the thickness of the foundation material 5 applied to the mountain side of the sheathing board 3 of each planting anchor 4 is reduced from the sheathing board 3 toward a mountain side to form a planting promotion surface 6 more gentle in inclination than the slope 1 on the upper surface of the foundation material 5. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an inclined land greening method suitable for greening mountain slopes, particularly retaining walls on which concrete, mortar, or the like has been constructed.

  The retaining wall, which is reinforced by placing concrete or mortar, exposes the solidified concrete and damages the landscape and damages the natural environment. Greening work is also being promoted on the walls.

  As a method of greening construction, a greening anchor having an anchor pin driven into a retaining wall and a retaining plate fixed to the anchor pin is used, and the greening anchors are spaced apart from each other in the inclination direction and the orthogonal direction of the slope. After fixing a plurality of landslides, spray the foundation sand onto the sloped land until the retaining plate is almost filled, then lay a protective net on the upper side of the basement sand, and then spray the vegetation base on the protective net and then plant the sloped land. A construction method has been proposed and implemented (for example, see Patent Document 1).

In addition, a vegetation base that uses plant seeds, a soil improvement material for seed germination and growth, and a vegetation base mixed with fertilizers, etc., is proposed to promote plant growth. (See, for example, Patent Document 2).
JP-A-10-37220 JP 7-48841 A

  By the way, it is known that plants grow more easily in the horizontal plane than in the inclined plane, but there are many cases where the retaining wall or the like has a steep slope of 45 ° or more. Then, there is a problem that the growth of the plant is inevitably slowed because the surface of the sprayed base material becomes an inclined surface substantially parallel to the retaining wall surface.

  An object of the present invention is to provide an inclined land planting method capable of promoting the growth of plants.

  The slope greening method according to the present invention uses a greening anchor having an anchor material fixed to the sloped land and a retaining plate fixed to the anchor material, and a plurality of greening anchors are spaced from each other with respect to the sloped land. After fixing the base material, the base material to be applied on the mountain side of the retaining plate of each greening anchor becomes thinner as it goes from the retaining plate to the mountain side. The material is sprayed to form a greening promotion surface that is gentler than the slope on the upper surface of the base material.

  In this sloped planting method, after the greening anchor is installed on the inclined surface, when the base material is sprayed, the thickness of the base material to be installed on the peak side of the retaining plate of the greening anchor is The base material is sprayed so as to become thinner as it goes, and a greening promotion surface with a gentler slope than the sloped land is formed on the upper surface of the base material, so that plant growth on the greening promotion surface can be promoted. Moreover, since the greening promotion surface has a gentle slope, the loss of the base material due to rainfall can be suppressed.

  Here, it is preferable to use a foundation sand and a vegetation foundation as the foundation material, spray the foundation sand, construct a protection net on the upper side of the foundation sand, and then spray the vegetation foundation on the protection net. It is a form. In this case, it is particularly effective when the spraying thickness of the base material is thick. In other words, as a base material, a vegetation base in which plant seeds, fertilizers and binders are mixed is widely used for base materials such as bark compost and wood crushing chips. The seeds placed deep in the soil may not germinate. For this reason, even if the vegetation base is thicker than necessary, it does not contribute to the promotion of plant growth.On slopes, rainwater flows along the surface of the vegetation, and the water necessary for plant growth is lost. Since it cannot be secured sufficiently, as in the present invention, after spraying the foundation sand with excellent water retention, the vegetation foundation is sprayed to form the base material in a two-layer structure, and the vegetation foundation is set to an appropriate thickness. However, it is preferable to promote the growth of the plant by increasing the water retention by the base sand.

  It is also a preferred embodiment to construct a water retaining material on the inclined ground on the front side of the earth retaining plate before spraying the base material. In this case, the water necessary for the growth of the plant can be secured by the water retaining material, so that the growth of the plant on the greening promotion surface can be further promoted.

  It is also a preferred embodiment to spray and construct a gravel layer on the greening promotion surface. By comprising in this way, with the gravel layer, the evaporation of the water | moisture content in a greening promotion surface can be suppressed, and the growth of the plant in a greening promotion surface can be promoted further.

  As the greening anchor, an anchor pin fixed on an anchor pin can be used. If constructed in this way, the anchoring pin and the retaining plate can be used to construct a greening anchor, so that the cost of manufacturing the greening anchor can be reduced, and only one anchor pin needs to be driven into the slope. Can be improved.

  As the anchor material, it is also possible to use a fixture having an attachment portion to an inclined ground and a fixing portion of a retaining plate, and an anchor pin or an anchor nail for fixing the attachment portion of the fixture to the slope. it can. In this case, although the structure of the anchor material is somewhat complicated, the anchor material can be fixed to the inclined surface by an anchor nail made of concrete nails, etc. Workability can be improved.

  The greening anchor can also be fixed in a staggered manner in the inclination direction of the inclined land and the direction orthogonal thereto. The staggered pattern means that the inclination direction of the inclined land and the direction perpendicular thereto are defined as the up and down direction and the left and right direction, and a plurality of greening anchors are fixed to the inclined land at a constant pitch in the up and down direction and the left and right direction, respectively. The phase of the arrangement pitch in the left-right direction of the greening anchors arranged adjacent to each other vertically is shifted by a half pitch in the left-right direction, and both ends of the earth retaining plates of the greening anchors arranged adjacently up and down are It means that they are arranged at the same position or arranged so as to overlap by a certain length. Then, by arranging the greening anchors in a staggered manner in this way, it becomes possible to block the base material that is about to flow down along with the rain water in almost all the portions of the inclined land.

  Bamboo can also be used as the retaining plate. As the earth retaining plate, a metal plate such as an iron plate can be used. However, by using bamboo, the production cost can be reduced, and sloped greening that is friendly to the natural environment is possible. Bamboo can be used in half, but in order to prevent corruption as much as possible, a single bamboo can be cut into a set length and used. Such bamboo can maintain its strength without decaying in the soil for 4 to 5 years in the soil, and since the plant is sufficiently rooted in the meantime, the base material does not peel off even after the bamboo decays. In addition, it is possible to construct a greening anchor using bamboo procured locally, which can contribute to the development of local industries.

  According to the sloped land greening method according to the present invention, after constructing a greening anchor on an inclined surface, when the base material is sprayed, the thickness of the base material to be constructed on the mountain side of the retaining plate of the greening anchor is The base material is sprayed so that it becomes thinner as it goes from the retaining plate to the mountain side, and a greening promotion surface that is gentler than the slope is formed on the upper surface of the base material, so that the growth of plants on the greening promotion surface can be promoted . Moreover, since the greening promotion surface has a gentle slope, the loss of the base material due to rainfall can be suppressed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the sloping land greening method uses a replanting anchor 4 having an anchor material 2 fixed to the sloping land 1 and a retaining plate 3 fixed to the anchor material 2. After fixing with respect to the sloping ground with a space between each other, when the base material 5 is sprayed onto the sloping ground 1, the thickness of the base material 5 to be constructed on the mountain side of the retaining plate 3 of each greening anchor 4 is Then, the base material 5 is sprayed so as to become thinner from the earth retaining plate 3 toward the mountain side, and a greening promotion surface 6 that is gentler than the slope 1 is formed on the upper surface of the earth material 5 on the mountain side of the earth retaining plate 3. Thus, the base material 5 is sprayed and applied. In the present embodiment, before spraying the base material 5, the water retention material 7 is laid and constructed on the slope 1 on the mountain side of the retaining plate 3, and the base sand 8 and the vegetation base 9 are used as the base material 5. After spraying 8, the protective net 10 is constructed above the base sand 8, and then the vegetation base 9 is sprayed onto the protective net 10. Moreover, although this Embodiment demonstrates the case where the slope 1 which consists of the slope which pre-constructed the hard slope 12 which consists of concrete or mortar etc. on the upper surface of the ground 11 is greened, the slope which consists of the ground 11 which the ground surface exposed The present invention can be similarly applied to the case of greening.

  As shown in FIG. 1 and FIG. 2, the greening anchor 4 is anchored to the anchor member 2 composed of a stainless steel round bar anchor pin having a sharply configured lower end, and stretched laterally from the anchor member 2 on the anchor member 2. A retaining plate 3 fixed so as to be put out is provided.

  As the anchor material 2, a pipe-shaped or plate-shaped material other than a round bar anchor pin may be employed. Further, the material of the anchor material 2 is not limited to stainless steel, and carbon tool steel, coated cemented carbide, high speed metal or the like, light alloy, ceramics, plastic, hard rubber, or the like can also be employed.

  The earth retaining plate 3 can be formed of a plate-like member having a substantially rectangular shape when viewed from the front and made of a metal material such as a steel material or an aluminum alloy, a reinforced plastic material, an engineering plastic material, or the like. Although it can be configured with a simple flat plate-like member, in order to increase the strength and rigidity in the bending direction with the anchor material 2 as the center, a side-view wave-shaped plate-like member or a long and narrow concave portion is formed. It is preferable to use the plate-shaped member. Further, in order to protect the natural environment, it is possible to use a wood-based material such as wood or bamboo. In particular, bamboo is preferable because it is less likely to rot than wood.

  The retaining plate 3 can be fixed to the anchor member 2 by welding or adhesion, or by using a fixing tool such as a bolt, or any combination thereof. Also, in order to increase the contact area between the earth retaining plate 3 and the anchor material 2 and to increase the bonding strength between them, a vertical concave groove in which the anchor material 2 is fitted in the central portion in the longitudinal direction of the earth retaining plate 3 is provided. It can also be formed. Further, the retaining plate 3 can be configured by superimposing two plate-like members, and the anchoring plate 3 and the anchoring member 2 can be integrated by sandwiching the anchor member 2 between the two plate-like members.

  In order to prevent the greening anchor 4 from rotating when the base material 5 is sprayed on the slope 1, a protrusion projecting laterally is provided at the middle or tip of the anchor material 2, and this protrusion is engaged with the slope 1. Thus, it is also a preferred embodiment that the rotation of the greening anchor 4 is restricted.

  Although the upper end part of the anchor material 2 and the upper end part of the retaining plate 3 can be set to the same height, if the upper end part of the anchor member 2 is set to a position that is a certain height higher than the upper end part of the retaining plate 3, The upper end portion of the anchor material 2 is engaged with the protective net 10 to prevent the positional displacement of the protective net 10, and the vegetation base is confirmed while checking the spraying height of the vegetation base 9 by the protruding state of the upper end of the anchor material 2. Since 9 can be sprayed, the vegetation base 9 can be sprayed with an appropriate amount with high accuracy. Attachment holes 13 are formed at both ends of the upper edge of the earth retaining plate 3, and metal or synthetic resin fixing strings 14 for fixing the protective net 10 to the earth retaining plate 3 are attached to the attachment holes 13. Yes.

  The base material 5 includes a base sand 8 and a vegetation base 9. When constructing the base material 5, the water retaining material 7 is first arranged on the mountain side of the retaining plate 3, and then the base sand 8 is sprayed on the sloped land 1, and then a protective net 10 is laid on the base sand 8 and finally protected. It is constructed on the slope 1 by spraying the vegetation base 9 from the upper side of the net 10.

  The base sand 8 is a mixture of river sand or mountain sand, water, a binder, a greening base material, and a plant growth material. As the sand, soil at the construction site or mountain sand can be adopted. As the binder, various cements, water glass, gypsum, and other organic polymer substances can be employed. As the greening base material, for example, organic fibrous materials such as coconut shell and rice straw, organic active fertilizer, humus, peat moss, bark compost, and other humic acid substances can be employed. Examples of plant growth materials include solid fertilizers such as nitrogen (N), phosphoric acid (P), and potassium (K), or chemical fertilizers, trace elements such as lime (Ca), manganese (Mn), and molybdenum (Mo), and others. Various vegetation growth promoters can be used. The mixing ratio of each material constituting the base sand 8 can be arbitrarily set according to the environment of the sloping ground.

  The vegetation base 9 is a mixture of an organic active fertilizer, a mineral fired light weight material, a humic acid substance, a polymer flocculant, and a plant seed. As plant seeds, for example, lawn, Kentucky, creeping, timothy, yamahagi and the like can be employed. As the organic active fertilizer, various plant-based recycled materials such as bark compost, peat moss, and humus (green manure) can be employed. As the polymer flocculant, for example, an adhesive polymer material such as an acrylic resin, a polyvinyl (PVC) resin, and a melamine resin can be employed. Examples of mineral fired lightweight materials include nacreous fired foam, obsidian fired foam, vermiculite fired foam, diatomaceous earth fired grains, and the like. As said humic acid substance, various plant-system recyclable materials, such as humic acid substances, such as rice straw, rice straw, and fallen leaves, and green manure, are employable, for example. The blending ratio of each material constituting the vegetation base 9 can be arbitrarily set according to the construction environment or the like.

  The protective mesh 10 can be composed of a metal mesh or a synthetic resin mesh. In the present invention, a metal mesh or a synthetic resin mesh made of a relatively soft material that can be easily deformed along the upper surface of the base material 5 can be preferably used. As the synthetic resin net, among the geotextiles widely used in the civil engineering field, a geogrid excellent in tensile strength made of a synthetic polymer material such as polypropylene or polyamide can be employed.

  The water retention material 7 is not limited to a foamed synthetic resin such as polyurethane, but may be a water retention material 7 made of asbestos, glass cotton, fine mineral, or the like. And the construction method can be arbitrarily selected from a method of spraying in a liquid state, a method of spraying in the form of fine powder, or a method of laying in a plate shape. In the present embodiment, the water retaining material 7 is laid only on the mountain side of the soil retaining material 3 in the vicinity of the soil retaining material 3, but it is also a preferred embodiment that the water retaining material 7 is disposed in a range corresponding to the greening promotion surface 6.

  The thickness of the foundation sand 8 to be constructed on the mountain side of the retaining plate 3 of each greening anchor 4 is sprayed so as to decrease from the retaining plate 3 toward the mountain side, and the retaining wall is located at the thickest part closest to the retaining plate 3. It is set to be substantially the same as the height of the plate 3. The thickness of the vegetation base 9 is sprayed so as to be substantially uniform over the entire surface, whereby the thickness of the base material 5 decreases from the earth retaining plate 3 toward the mountain side. By forming the greening promotion surface 6 having a gentler slope than the inclined land 1 on the upper surface, the growth of plants on the greening promotion surface 6 is promoted. However, the vegetation base 9 can also be sprayed so as to become thinner as it goes from the retaining plate 3 to the mountain side. Further, in this embodiment, the greening promotion surface 6 is configured by a substantially flat inclined surface having a substantially uniform gradient, but is configured in a curved surface shape in which the gradient increases as it goes upward from the earth retaining plate 3. For example, between the retaining plates 3 arranged adjacent to each other vertically, the greening promoting surface 6 near the lower retaining plate 3 becomes a substantially horizontal surface, and the greening promoting surface 6 near the upper retaining plate 3 is It can also be formed in a curved surface with a quadratic curve in side view so as to have substantially the same gradient.

  When the height of the earth retaining plate 3 is 12 cm, the concrete thickness of the earth retaining plate 3 can be set to 12 cm for the thickest part of the base sand 8 and 2 to 3 cm for the thinnest part. In this case, the thickness of the vegetation base 9 is set to about 3 to 7 cm.

  In addition, as shown by the phantom line in FIG. 1, sand and pebbles are further sprayed onto the upper side of the greening promotion surface 6 to form a gravel layer 17, and the evaporation of moisture from the base material 5 is suppressed. This is also a preferred embodiment.

  Next, the sloped planting method will be described. This sloped greening method is applied when the present invention is applied to the slope 1 where the hard slope 12 made of concrete or mortar is preliminarily constructed, but the present invention is similarly applied to the slope where the ground is exposed. it can.

First, as shown in FIGS. 3 and 4, a through hole 15 having a diameter of, for example, 20 to 60 mm is formed on an existing hard sloping ground 12 having a thickness of 10 to 30 cm per 1 m ² by a rock drilling machine (not shown). 4-10 pieces are formed at intervals in the vertical and horizontal directions. For example, the through-hole 15 collects permeated water on the ground 11 side and inserts a water conduit (for example, a vegetation cylinder having a capillary action) for facilitating water absorption to the base sand 8 side. This is for sufficient injection and filling so that sufficient moisture is supplied to the base sand 8 side. In addition to the through holes 15, the insertion holes 16 having a diameter matching the diameter of the anchor material 2 are formed, for example, at a pitch of 1 m in the left-right direction and a pitch of 1 m in the vertical direction, and adjacent upper and lower insertion holes The holes 16 are formed in a staggered manner with the arrangement pitch of the holes 16 being a half pitch in the left-right direction, that is, the phase is shifted by 50 cm.

Next, as shown in FIGS. 3 and 4, the anchor material 2 is inserted into the insertion holes 16, and the greening anchors are inserted into the insertion holes 16 so that the earth retaining plate 3 is substantially orthogonal to the inclination direction of the inclined ground 1. 4 is driven and fixed, and a plurality of greening anchors 4 are fixed to the slope 1 in a staggered manner. That is, since the length of the earth retaining plate 3 is 50 cm, the greening anchor 4 is fixed to the inclined ground 1 so that both ends of the upper and lower adjacent earth retaining plates 3 are arranged at the same position in the left-right direction. It will be. And since the greening anchors 4 are arranged in a staggered manner with respect to the slope 1 in this way, it becomes possible to prevent the vegetation base 9 about to flow down along with rainwater in almost all the parts of the slope 1. . Of course, in this greening anchor 4, it is most effective to prevent the vegetation base 9 from flowing down when the retaining plate 3 integrated with the anchor material 2 is driven perpendicularly to the inclined land. The arrangement density of the greening anchors 4 is preferably at least 1 / m ² .

  Next, as shown in FIG. 4, after the water retaining material 7 is laid on the front side of the earth retaining plate 3, the foundation sand 8 is sprayed and applied. At this time, the thickness of the foundation sand 8 between the earth retaining plates 3 adjacently arranged in the vertical direction at the same position in the left-right direction increases from the lower earth retaining plate 3 to the upper earth retaining plate 3 side. The base material 5 is sprayed so that the upper end of the earth retaining plate 3 is buried in the lower retaining plate 3, and the first corrugated portion in the upper retaining plate 3. The foundation sand 8 is sprayed and applied to the extent that is filled. However, the position of the thin portion where the thickness of the base sand 8 is the smallest is not necessarily set at the upper earth retaining plate 3 or in the vicinity thereof. However, in order to make the greening promotion surface 6 as close as possible to the horizontal plane while ensuring a sufficient area of the greening promotion surface 6, it is set so that the thin-walled portion is disposed at a position above the intermediate position between the two retaining plates 3. Is preferred.

  Next, as shown in FIG. 1, after the foundation sand 8 is sprayed, a protection net 10 is laid along the base sand 8, and the earth retaining plate 3 is attached to the earth retaining plate 3 by the fixing string 14. Secure to.

  Next, as shown in FIG. 1, the vegetation base 9 is sprayed from the upper side of the protective net 10 with a substantially uniform thickness. However, in order to prevent the collapse of the vegetation base 9 on the lower side of the retaining plate 3, the vegetation base 9 near the lower side of the retaining plate 3 is applied by spraying the vegetation base 9 thicker than other parts. .

  In this way, with the base material 5 composed of the base sand 8 and the vegetation base 9 being sprayed, the greening promotion surface 6 having a slope smaller than the slope of the slope 1 is formed between the earth retaining plates 3 arranged adjacent to each other vertically. become. The slope of the greening promotion surface 6 is preferably as close to zero as possible in order to promote the growth of plants, but when the slope of the slope 1 is large, the width of the greening promotion face 6 becomes narrow and the slope 1 Considering the whole, on the contrary, the growth of the plant may be inhibited. Therefore, the difference between the slope of the slope 1 and the slope of the greening promotion surface 6 is set to 20 ° or less, preferably 10 ° or less. preferable.

  Thus, since the greening promotion surface 6 becomes a gentle slope at least rather than the inclined land 1, the growth of the plant in the greening promotion surface 6 is promoted to that extent. Moreover, the loss of the base material 5 on the greening promotion surface 6 due to rainwater can be prevented.

  Next, another embodiment in which the configuration of the greening anchor 4 is partially changed will be described. The same members as those in the above embodiment are given the same reference numerals, and detailed description thereof is omitted.

(1) Like the anchor 4A for greening shown in FIG. 5A, a flat water-retaining material 7A can be fixed to the surface of the earth retaining plate 3 opposite to the anchor member 2 with an adhesive or the like. Moreover, like the anchor 4B for greening shown in FIG.5 (b), the rod-shaped water retention material 7B can be fixed to the lower part of the surface on the opposite side to the anchor material 2 in the earth retaining plate 3 with an adhesive agent. Furthermore, like the greening anchor 4C shown in FIG. 5 (c), the water retaining material 7C can be provided in a filling manner in the concave groove 20 on the surface opposite to the anchor material 2 in the earth retaining plate 3. Further, like a greening anchor 4D shown in FIG. 5 (d), a flat water retaining material 7D is provided on the surface of the earth retaining plate 3 opposite to the anchor material 2, and the lower end of the water retaining material 7D is disposed on the earth retaining plate. 3 is connected via a hinge 21 to transport the greening anchor 4D by holding the water retaining material 7D in the folded position shown by the solid line to ensure the transportability of the greening anchor 4D. At the time of 4D construction, it is also a preferred embodiment to be configured so as to be able to improve the water retention of the base material 5 sprayed on the upper side by rotating it to the use posture shown in the figure with a virtual line.

(2) In place of the anchor material 2 as in the greening anchor 4E shown in FIG. 6, a substantially L-shaped fixing device 27 having a mounting portion 25 to the inclined land 1 and a fixing portion 26 of the earth retaining plate 3 in a side view; The anchor member 2E having the anchor pin 28 or the anchor nail 29 for fixing the attachment portion 25 of the fixing tool 27 to the inclined ground 1 can also be used. In this case, since the greening anchor 4E can be fixed by the anchor pin 28 or the anchor nail 29 according to the gradient of the slope 1 or the purpose of use, the workability of the greening anchor 4E can be improved. For example, in the slope 1 with a relatively small slope, the anchoring nail 29 made of concrete nail or the like can be used to easily fix the greening anchor 4 to the slope 1. When the slope is relatively large, the anchor pin 28 can sufficiently secure the bonding strength of the greening anchor 4 to the slope 1. The retaining plate 3 can be integrally fixed to the fixing device 27 by welding or the like. However, if the retaining plate 3 is detachably fixed to the fixing device 27, the retaining plate 27 is removed from the fixing device 27 during transportation. Since 3 can be separated and both can be packed separately, the transportability of the greening anchor 4E can be improved.

(3) Instead of the anchor material 2 as in the greening anchor 4F shown in FIG. 7, the fixed portion 30 fixed to the surface on the mountain hem side of the retaining plate 3, and the inclined portion 1 from the lower end portion of the fixed portion 30. A first attachment portion 31 extending to the mountain side, a support portion 32 extending obliquely from the upper end portion of the fixing portion 30 to the mountain hem side, and a second attachment portion 33 extending from the lower end portion of the support portion 32 to the mountain hem side along the slope 1 It is also possible to use an anchor member 2F having a fixing tool 34 having an anchor pin 35 and an anchor pin 35 or an anchor nail 36 for fixing both attachment portions 31 and 33 of the fixing tool 34 to the slope 1. In this greening anchor 4F, the greening anchor 4F can be fixed by the anchor pin 35 or the anchor nail 36 in accordance with the slope of the slope 1 or the purpose of use, so that the workability of the greening anchor 4F can be improved. Although the retaining plate 3 is integrally fixed to the fixing portion 30 by welding or the like, the retaining plate 3 can be detachably fixed to the fixing portion 30 using a fixing tool 34 such as a screw. .

(4) Like the greening anchor 4G shown in FIG. 8, instead of the anchor material 2, a support tool 40 formed by bending a metal wire into a triangular shape in a side view, and an anchor nail for fixing the support tool 40 to the slope 1 It is also possible to fix the greening anchor 4G to the inclined ground 1 by using the anchor member 2G having 41 and inserting the anchor nail 41 into the ring member 42 provided at the mountain side end of the support 40. The anchor material 2G can be fixed by welding or the like by hanging a metal wire of the support 40 on the center of the earth retaining plate 3 in the length direction. In this case, the manufacturing cost of the anchor material 2G can be reduced.

(5) Instead of the metal retaining plate 3 as in the greening anchor 4H shown in FIG. 9, a plurality of halved bamboos 45 are provided side by side, and adjacent bamboos 45 are connected by a connecting ring 46 or the like. It is also possible to use a retaining plate 3H. In this case, since the earth retaining plate 3H can be composed of the bamboo 45, an even more environmentally friendly sloped greening method can be realized.

(6) Instead of the metal retaining plate 3 as in the greening anchor 4J shown in FIG. 10, a retaining plate 3J obtained by cutting a single bamboo 50 into a set length is used, and the upper portion of the anchor material 2 is used. The two pin members 51 are formed in a protruding manner, the pin members 51 are inserted into the bamboo 50 and the ends thereof are caulked, whereby the bamboo 50 can be fixed to the anchor material 2.

Longitudinal section of the sloped land after the sloped greening method Perspective view of anchor for greening Explanatory drawing during construction of anchor for greening Illustration of foundation sand construction (a)-(d) is a side view of another anchor for greening In the anchor for greening of another structure, (a) is an explanatory view at the time of construction on an inclined land, (b) is a perspective view In the anchor for greening of another structure, (a) is an explanatory view at the time of construction on an inclined land, (b) is a perspective view In the anchor for greening of another structure, (a) is an explanatory view at the time of construction on an inclined land, (b) is a perspective view In the anchor for greening of another structure, (a) is an explanatory view at the time of construction on an inclined land, (b) is a perspective view In the anchor for greening of another structure, (a) is an explanatory view at the time of construction on an inclined land, (b) is a perspective view

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Slope 2 Anchor material 3 Retaining plate 4 Anchor for greening 5 Base material 6 Greening promotion surface 7 Water retention material 8 Base sand 9 Vegetation base 10 Protective net 11 Ground 12 Hard slope 13 Mounting hole 14 Fixed string 15 Through hole 16 Insertion hole 17 Gravel Layer 4A Greening Anchor 7A Water Retaining Material 4B Greening Anchor 7B Water Retaining Material 7C Water Retaining Material 4C Greening Anchor 20 Groove Anchor 4D Greening Anchor 7D Water Retaining Material 21 Hinge 2E Anchor Material 4E Greening Anchor 25 Mounting Portion 26 Fixing Portion 27 Fixing Tool 28 Anchor pin 29 Anchor nail 2F Anchor material 4F Greening anchor 30 Fixing part 31 First attachment part 32 Support part 33 Second attachment part 34 Fixing tool 35 Anchor pin 36 Anchor nail 2G Anchor material 4G Anchor for greening 40 Support tool 41 Anchor Nail 42 Ring member 3H Earth retaining plate 4H Greening anchor 45 Bamboo 46 Connecting ring 4J Greening anchor 3J Earth retaining material 50 Bamboo 51 Pin member

Claims (8)

  Using a greening anchor with an anchor material fixed to an inclined land and a retaining plate fixed to the anchor material, after fixing a plurality of greening anchors to the inclined land at intervals, When the base material is sprayed, the base material is sprayed so that the thickness of the base material to be applied to the mountain side of the anchor plate for each greening anchor becomes thinner as it goes from the soil plate to the mountain side. An incline greening method characterized in that a greening promotion surface is formed on the upper surface of the slope which is gentler than the incline.   The sloped greening according to claim 1, wherein a base sand and a vegetation base are used as the base material, the base sand is sprayed, a protective net is installed on the base sand, and then the vegetation base is sprayed onto the protective net. Construction method.   The sloped planting method according to claim 1 or 2, wherein a water retaining material is constructed on the sloped ground on the front side of the retaining plate before spraying the base material.   The sloped greening method according to any one of claims 1 to 3, wherein a gravel layer is sprayed on the greening promotion surface.   The sloped greening method according to any one of claims 1 to 4, wherein the anchor for greening uses an anchor pin fixed to the upper part of an anchor pin.   As the anchor material, a member having a fixture having an attachment portion to an inclined ground and a fixing portion of a retaining plate, and an anchor pin or an anchor nail for fixing the attachment portion of the fixture to the inclined ground is used. Item 5. The inclined land planting method according to any one of items 1 to 4.   The sloped greening method according to any one of claims 1 to 6, wherein the greening anchors are fixed in a staggered manner in the sloped direction of the sloped land and in a direction perpendicular thereto. The sloped greening method according to any one of claims 1 to 7, wherein bamboo is used as the earth retaining plate.

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