KR20110006464A - Environmentally-friendly revetment structure - Google Patents

Abstract

PURPOSE: An environment-friendly revetment structure is provided to preserve and restore ecosystem by preventing a revetment from collapsing. CONSTITUTION: An environment-friendly revetment structure comprises multiple frames(10) and binding members(20). Vegetation spaces(10A) for plants(4) are formed in the frames. The frames are connected each other. The binding members couple the frames so that the frames can be relatively moved.

Description

Natural Revetment Structure {Environmentally-friendly revetment structure}

The present invention relates to the field of civil engineering, and relates to a natural revetment structure for protecting a lake by a natural friendly method.

The term 'vegetation' refers to a state in which trees are planted, and 'greenness' refers to a state in which grass, such as grass, is planted. Hereinafter, 'vegetation' is used as a concept including the 'greenness'.

In general, slopes such as slopes and slopes of shores are easily eroded or lost due to water, wind, etc., and thus, a shoreline construction method for constructing shoreline structures on slopes of shores to protect the shores of lakes is implemented.

However, for the construction of the framework for the protection of the rafts, the inherent vegetation zone is inevitably damaged, which causes enormous damage to the natural ecosystem around the rafts, and damages the aesthetics due to the damage to the vegetation zone and the depressed raft structure.

Therefore, in recent years, it is possible to prevent the collapse of the shoreline, but at least by creating a unique vegetation zone so that the habitat of living organisms can be made by itself, conserving and restoring the ecosystem and the collapse of the shoreline by the vegetation zone itself. There is a lot of research on the raft construction method that can prevent.

In particular, there is an urgent need for a method for stably constructing a natural friendly revetment method such as a water flow part, a slope, a drainage slope, and an oil reservoir slope where flow rates and wind speeds are high, and turbulence is easily formed.

The present invention has been made in order to solve the above problems, the object of the present invention is to provide a framework for the natural revetment structure to prevent the collapse of the lake by creating a vegetation zone, and to preserve and restore the ecosystem.

In order to solve the above problems, the present invention provides a vegetation space portion (10A) for the vegetation (4) is formed, a plurality of frames 10 are installed in contact with each other; Presented is a natural relief structure comprising a binding member 20 for binding the plurality of the frame 10 to be relatively movable to each other.

The binding member 20 may be made of a flexible material.

The binding member 20 may take the form of a corrugated pipe 22.

The binding member 20 may have a band shape 24.

The binding member 20 may be installed to be interposed between the connecting surface of the adjacent mold 10.

The binding member 20 may be installed to surround the frame 10 adjacent to each other.

At least one recess 10B may be formed in the mold 10 so that at least a part of the binding member 20 may be inserted and installed.

The vegetation space portion 10A may be formed to penetrate the vegetation 4 so that the vegetation 4 may slide on the ground 2 and may be formed to have a variable cross-sectional shape as the vegetation 4 is grown.

The vegetation space portion 10A may be filled with a corrosive filler 12 for nutrient supply of the vegetation 4.

Core material connected to the vegetation space portion 10A of the frame 10 and embedded in the ground (2) to induce moisture in the ground (2) to the vegetation space portion (10A) of the frame (10) 50).

Is connected to at least one of the vegetation space portion 10A of the mold 10 and buried in the ground (2) to induce moisture in the ground (2) to the vegetation space portion (10A) of the mold (10) Core material 50; It may further include a hygroscopic member 60 for guiding the moisture induced by the core 50 to the plurality of molds (10).

The frame member 10 may further include pile members 40 that are provided in one row or two or more rows on the lower side of the slope on which the molds 10 are installed.

The pile member 40 has a body portion 42 at least partially embedded in the ground (2); It may include a plurality of branch portions 44 protruding to the side of at least the portion of the body portion 42 embedded in the ground (2).

The pile member 40 may be wood, further thinning wood.

The pile member 40 is preservatively treated with an antiseptic solution containing salt, and the coating layer 46 may be formed by a coating material including bentonite at the side surface of the body portion 42 and the branch portion 44. have.

According to the present invention, by binding a plurality of molds together by a binding member, it is possible to implement a robust and stable revetment method.

In addition, the present invention can stably create a vegetation zone, it is natural friendly.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figures 1 to 4, the natural shore revetment structure according to the present invention, the vegetation space portion 10A for the vegetation (4) is formed, and a plurality of the frame 10 is installed in contact with each other; ; It may be configured to include a binding member 20 for binding the plurality of the frame 10 to be relatively movable to each other.

That is, the plurality of molds 10 are bound together as one by the binding member 20, thereby supporting each other against external forces such as flow rate and distributing loads from each other.

Therefore, even if the water level of the river, the flow rate increases, or the wind speed increases due to heavy flooding or heavy rainfall, the departure of the vegetation 4 and the vegetation 4 can be prevented, and thus the vegetation zone is stably formed. In addition, it is possible to obtain the effect that the collapse of the lake can be prevented by the shore structure and the composition vegetation zone.

As a result, it is possible to obtain an effect that the flow velocity and the wind speed can be easily applied, and the water can easily be formed in the water-prone section, drainage slope, oil reservoir slope, and the like.

The binding member 20 may have any configuration as long as it can bind the plurality of frames 10. However, the binding member 20 allows the external force to be offset by allowing the fluid to be elastically movable rather than binding the plurality of frames 10 without movement at all, so that the plurality of frames 10 can be returned after the external force is applied. It may be more preferable that it consists of a flexible material.

The binding member 20 of the flexible material may take various shapes. As a preferred example, the binding member 20 may have a corrugated pipe shape 22 so as to have sufficient elastic force as shown in FIGS. 1 to 3, wherein the binding member 20 is interposed between the joint surfaces of the frames 10 adjacent to each other. Is easier. Alternatively, the binding member 20 may have a band shape 24 to easily bind the plurality of molds 10 as shown in FIG. 4, wherein the coupling members 20 are installed to surround the molds 10 adjacent to each other. It is easy.

Hereinafter, the frame 10 described above will be described in more detail.

2 to 4, at least one recess 10B is formed in the mold 10 so that at least a portion of the binding member 20 may be inserted into the mold 10 so that the two molds 10 adjacent to each other are formed. Even if the binding member 20 is installed between the two neighboring mold 10 can be easily connected to each other. In addition, the plurality of molds 10 may be firmly constructed in a weaving manner, and at least a portion thereof may be bound to the ground 2 by an anchor member or the like as necessary.

The vegetation space portion 10A may be formed to penetrate the vegetation 4 so that the vegetation 4 may grow on the ground 2.

Accordingly, as the vegetation 4 stably grows in the ground 2 and grows, the roots 4A of the vegetation 2 entangle each other in the ground 2 to form a net, thereby forming a net by the composition of the vegetation zone. The slope of can be reinforced more firmly, the structure 10 can be maintained more stable, and even if the frame 10 is corroded and disappeared, it is possible to obtain the effect that the revetment method can be sufficiently maintained by the vegetation zone have.

On the other hand, if the vegetation space portion 10A is too large compared to the vegetation 4, there is a problem that it is difficult to support the vegetation 4 stably, if the vegetation space portion 10A is too small compared to the vegetation (4) There is a problem that the growth of (4) may be disturbed.

Therefore, the vegetation space portion 10A may have a variable structure as follows so that the vegetation 4 can be naturally expanded by the vegetation 4 as the vegetation 4 is grown.

That is, in the early stages of construction, the revetment may be reinforced by the framework 10, so that the vegetation 4 or seeds of the first-year vegetation may smoothly grow and grow, and the vegetation space part ( 10A) can be expanded by deformation or fracture, etc. so that the vegetation 4 can be sufficiently grown without being disturbed by the mold 10.

At this time, since the vegetation zone can be sufficiently maintained by the vegetation zone after the vegetation zone is formed as described above, the frame 10 may be deformed or broken for expansion of the vegetation space portion 10A.

Therefore, even when planting the vegetation 4 of the first year at the beginning of construction, since the vegetation 4 of the perennial plant can be stably mobilized and induced by the growth of the vegetation 4, the ecosystem can be easily created in its original state. The effect can be obtained.

In addition, since the frame 10 is formed on the premise of the variable vegetation space portion 10A according to the growth of the vegetation 4 from the beginning, maintenance, repair, replacement work due to the growth of the vegetation 4 after construction will be omitted. Can achieve the effect.

In addition, as the vegetation zone is formed by swelling and growing the vegetation of the perennial vegetation (4) or the seeds into various perennial vegetation (4), the construction cost is higher than that of the vegetation zone by the perennial vegetation (4). It can be reduced, it is possible to obtain the effect that does not need to damage other vegetation zone to save the perennial vegetation (4).

In addition, since the vegetation zone can be stably formed by various perennial vegetation (4), it is possible to obtain the effect that it can be easily constructed at the flow rate, wind speed, turbulent zone, drainage slope, reservoir slope, etc. Can be.

In order to form the mold 10 having the variable vegetation space portion 10A as described above, as shown in FIG. 5, the mold 10 has at least one through-hole h of a predetermined size having a cross section formed therethrough. It may be configured to include a base portion (A) filled with a corrosive filler material 12 to surround the vegetation (4) inside the hole (h).

That is, as the corrosive filler 12 is corroded and removed over time, the space in which the vegetation 4 can be vegetated is gradually expanded inside the through-hole h, whereby the perennial vegetation 4 ' It is possible to form a variable vegetation space portion (10A) that can be slid.

The corrosive filler material 12 may be anything that can corrode over time without damaging the vegetation 4.

However, it may be more desirable if the corrosive filler 12 can be corroded over many years corresponding to the growth time of the vegetation (4). In addition, the corrosive filler material 12 may be more preferable if it can help the growth of the vegetation (4). In order to take the above two advantages, the corrosive filler 12 may be characterized as including fertilizer for the nutrient supply of vegetation (4). Fertilizer powder can be anything that is intended for vegetation, such as crests, lumber crumbs around shores, or crests. On the other hand, the through hole (h) of the base portion (A), if necessary, may be filled with dredged soil of the river, surrounding soil, stones, and the like.

Since the base portion A may be formed of the variable vegetation space portion 10A by the corrosive filler 12 as described above, the base portion A may be formed of a solid body that does not change shape even when the vegetation 4 is grown.

Base portion (A) may be formed by a variety of materials to be formed into a solid body, and as a preferred example may be formed of a concrete or synthetic resin or a material including concrete or synthetic resin to reinforce the reinforcement of the lake. In addition, the base portion (A) may be made of environmentally friendly materials for the environment.

Alternatively, the base portion A may be stably maintained by the vegetation zone after the vegetation zone is formed, as described above, and the vegetation zone 4 may stably grow and grow until the vegetation zone is formed. It may be more preferably made of an environmentally friendly material such as wood to support and finally return to nature by corrosion.

The base portion A may be reinforced by the reinforcing armature 26 made of various materials such as a wire mesh to enhance durability.

On the other hand, since the frame 10 may support the vegetation 4 for stable lubrication and induction of the vegetation 4 only at the beginning of construction, as described above, the formation of the variable vegetation space portion 10A is illustrated in FIG. 6. It may itself be formed into a variable portion (B) deformable by the vegetation (4).

That is, the variable part B may be formed of a material deformable by the growing vegetation 4.

For example, as shown in FIG. 6, the variable part B may be formed of a wood (wood) material which is environmentally friendly and can be easily deformed by the vegetation 4. At this time, the variable portion (B) may take a variety of structures, in particular, taking the network structure may be more preferable for the following reasons. That is, as the variable portion (B) is made of a tree net, it can be varied by deformation or breaking for smooth growth of the vegetation (4), it is easy to manufacture. In addition, the mold 10 may further include a bag 32 inserted into the variable portion B in order to preserve the corrosive filler 12 or soil for the vegetation 4. The pocket 32 may be formed of various materials, and in particular, it may be preferable that the pocket 32 is formed of a nonwoven material to facilitate the induction and slidability of the vegetation 4.

Meanwhile, the variable part B of the network structure may be formed of various materials such as wire mesh, in addition to the wood material described above.

In addition, the variable part B may be formed of a soft material, that is, a soft resin material such as a sponge, a wood powder material, a mixed material of a soft resin and wood powder, and the like so as to be deformable by the growing vegetation 4.

Alternatively, the frame 10 may include at least one through-hole h formed to prevent collapse of the lake by the rigidity of the frame 10 even after sufficient vegetation zones are formed as shown in FIGS. 7 and 8. It may be composed of one base portion (A) and the above-described variable portion (B) inserted into the through hole (h) of the base portion (A). The through hole h of the base portion A may also be filled with a corrosive filler 12 or the like.

On the other hand, the natural revetment structure according to the present invention, as shown in Figure 1 and 9 may further include a pile member 40 which is typed in the ground (2) for the formation and reinforcement of the foundation hole.

As shown in the figure, a plurality of pile members 40 may be provided in one row or two or more rows at the lower side of the slope of the lake, and the pile member 40 may be typed in the middle or the upper side of the slope of the lake, if necessary. It may be typed in the back water, and one or a few may be typed sparsely.

In particular, the pile member 40 includes a plurality of branch portions protruding from the side of the body portion 42 at least partially embedded in the ground 2 and at least part of the body portion 42 embedded in the ground 2 ( 44).

That is, when the pile member 40 is typed into the ground 2, the plurality of branch portions 44 may be lodged in the ground 2 in a different direction from the body portion 42 like a wedge.

Therefore, since the pile member 40 can be more firmly typed into the ground 2 by the plurality of branch portions 44, the separation of the pile member 40 can be prevented, and the pile member 40 can be prevented. As a result, it is possible to obtain an effect that the mold 10 or the vegetation zone can be more stably maintained.

Furthermore, the body portion 42 may be formed in various ways, and in particular, it is more preferable that the end portion 14 is sharply formed to be easily and firmly formed in the ground 2 as shown. can do.

It is more preferable that the plurality of branch portions 44 are evenly distributed along the length and circumference of the pile member 40.

It is more preferable that the plurality of branch portions 44 take a shape that becomes gradually thinner as it moves away from the body portion 42, such as a wedge. In addition, the branch portion 44 may have a constant thickness as necessary, and the thickness may have a stepped structure. It may be changed to, or may be formed in various ways without being bound by a specific framework.

The plurality of branch portions 44 are particularly detached from the pile member 40 if a reaction by the plurality of branch portions 44 acts in a reverse direction with respect to the separation direction of the pile member 40 typed into the ground 2. This can be more surely prevented, at least a part of which can protrude from the side of the body portion 42 toward the head 42A of the body portion 42.

Such pile member 40 may be made of a variety of materials, such as reinforcing bars, pipes, it may be more preferable to use wood for an environmentally friendly method, in particular by recycling the thin timber removed from the lake for the revetment method, Cost reduction according to the intercalation process, cost reduction for the pile member 40 can be taken further advantages.

The piling member 40 made of the thinning tree is that the branches that are not removed among the branches of the thinning tree form the branch portion 44, the manufacturing of the pile member 40 can be simplified and the cost can be reduced accordingly. It is more preferable at the point that the branch part 44 and the body part 42 can be integrated.

At this time, for forming the branch portion 44, although the branches of the thinning tree may be used as it is, but rather the arrangement of the twigs of the thinning can be hindered in the type of the pile member 40 and the post-processing described later It may be more preferable to use the branches of the thinning tree so that only the bottom is left.

Thus, when the pile member 40 is made of timber or other timber other than wood, if the timber or other timber is used as it is, it can be insufficient as a reinforcing material that requires a lot of strength due to the presence of many holes due to the nature of the wood and easy to corrode. have.

Therefore, in order to form the pile member 40, it is preferable to preservatively process thinwood or other timber with an antiseptic solution containing salt such as brine.

In addition, the pile member 40 may be corroded by the water flowing from the surroundings, the water flows into the gap between the pile member 40 and the ground (2), the leakage occurs, the ground (2) becomes soft As can be seen, the pile member 40 is preferably waterproof and water resistant.

Various methods are available for waterproofing and indexing the pile member 40. In particular, by forming the coating layer 46 on the outer surface of the pile member 40 by a coating material including bentonite, the waterproofing and indexing are simultaneously performed. Can be satisfied.

In other words, bentonite is clay composed of extremely fine particles, and the main mineral is montmorillonite, and the clay is a very viscous clay produced by decomposition of the volcanic ash. Such bentonite has a property of swelling by moisture and expanding in volume or several tens of times in volume, which makes it very suitable as a waterproofing material and an indexing material.

Furthermore, in order to more firmly form the coating layer 46 on the pile member 40, the coating material may further comprise a glue.

On the other hand, although the coating layer 46 may be formed on the whole of the pile member 40, when forming the coating layer 46 on the pile member 40, as described above, drainage or groundwater elution through the pile member 40 The coating layer 46 may be formed only on the side and branch portions 44 of the body portion 42.

In addition, although the coating layer 46 may be formed on the entire side of the body part 42, as described above, when the end portion 42B of the body part 42 is sharply formed, through the pile member 40. To facilitate the drainage or groundwater elution, it may be more desirable to form the coating layer 46 only at the remaining portions except for the end portion 42B of the body portion 42.

In addition, the natural revetment structure according to the present invention, as shown in Figure 10 and 11 to induce moisture in the ground (2) to the vegetation space portion (10A) of the frame 10, It may be configured to further include a core material 50 connected to the vegetation space portion 10A and embedded in the ground (2).

That is, the core material 50 serves as a passage for supplying moisture in the groundwater 2, which is groundwater, so that the moisture for the vegetation space portion 10A and the ground surface of the vegetation 4 through the core material 50 is found even during a drought. We can supply enough.

Therefore, since the vegetation 4 can stably grow and grow, the vegetation zone can be easily formed and the ecosystem can be restored and preserved. The vegetation zone thus formed can more reliably prevent the collapse of the lake. Can be obtained.

The core material 50 may be configured in various ways according to the method for supplying the moisture of the ground (2), in particular by the capillary phenomenon of one of the natural phenomena, as shown in Figure 8 Capillary tube 52 to guide the vegetation space portion 10A.

Since the core 50 is configured for the capillary phenomenon, it is not necessary to build a power unit such as a pump for supplying moisture in the ground (2), it can be installed at a low cost, and most of all is environmentally friendly The effect can be obtained.

In addition, the capillary 52 serves as a reinforcing material, it is possible to more securely protect the lake.

Capillary tube 52 may be formed of any material, such as synthetic resin, metal pipes, wood as long as it can induce a capillary phenomenon.

At this time, when the core material 50 is composed of a capillary tube 52, when the filling material 12A is filled in the vegetation space portion 10A, the head of the core material 50 loses the filling material 12A through the core material 50. It may be more preferable that the hygroscopic film (not shown) is configured to prevent the moisture from being induced by the core material 50 to the vegetation space portion 10A. The hygroscopic membrane may be made of various materials such as nonwoven fabric, sponge, wood flour and the like.

In addition, the core material 50 may further include a porous member (not shown) filled in the capillary tube 52 to guide the moisture in the ground 2 to the vegetation space portion 10A more easily by capillary action. Can be. The porous member may be any material such as nonwoven fabric, sponge, wood flour, or the like as long as it can induce a capillary phenomenon.

When the core 50 is made of a capillary tube 52 and a porous member as described above, the porous member can be protected by the capillary tube 52, and prevents moisture induced by the porous member in the middle from being lost to the ground 2. In addition, the structural features of the capillary tube 52 may of course take advantage of the porous material of the porous member so that the moisture in the ground 2 may be induced to the vegetation space portion 10A more smoothly.

Alternatively, the core material 50 may be composed of only a porous member for guiding the moisture of the ground 2 to the vegetation space portion 10A by capillary phenomenon caused by porosity like the stem of a plant.

Or the core 50 is made of wood 54 in particular, it can be more eco-friendly construction method, it is possible to achieve the effect of simultaneously meeting the capillary phenomenon and porosity by the capillary tube 52 described above.

Like the pile member 40 described above, the core material 50 is preferably coated on the side by a coating material containing bentonite for waterproofing and index.

In particular, the timber 54 constituting the core material 50 may be formed like the pile member 40 as described above.

The core 50 is installed so that the head is inserted into the vegetation space portion 10A, as shown in Figure 10, it can be more firmly coupled to the frame 10, the ground induced by the core 50 The loss of moisture in (2) can be prevented.

In addition, the core material 50 may be configured to be connected to each vegetation space portion 10A as shown in FIG. 10, or as shown in FIG. 11, some of the molds 10 of the plurality of molds 10 are shown. Can be buried in the ground (2) to be connected to the vegetation space portion (10A) of.

In the latter case, the moisture induced by the core 50 is supplied to the plurality of molds 10 so that the moisture induced by the core 50 may be supplied from the vegetation space portion 10A not connected to the core 50. It may further include a hygroscopic member 60, such as a nonwoven fabric to guide the.

That is, some vegetation space portion (10A) can be supplied directly to the moisture in the core 50 through the core 50, the remaining vegetation as the moisture is induced from the core 50 to the hygroscopic member 60 The space portion 10A may be supplied with moisture guided by the hygroscopic member 60.

Therefore, the number of cores 50 can be reduced, thereby reducing construction costs, and minimizing disturbance of the grounds 2 due to embedding of the cores 50, thereby more reliably preventing the collapse of the grounds 2. In addition, it is possible to take advantage of the moisture absorbing member 60 to induce moisture in the ground (2) even where the core 50 is difficult to embed.

Since the above has been described only with respect to some of the preferred embodiments that can be implemented by the present invention, the scope of the present invention, as is well known, should not be construed as limited to the above embodiments, the present invention described above It will be said that both the technical idea and the technical idea which together with the base are included in the scope of the present invention.

1 is a view showing a natural revetment structure according to the present invention,

1 is a schematic diagram of a natural revetment structure according to the first embodiment.

Figure 2 is a side cross-sectional view of the natural revetment structure according to the first embodiment.

3 is an exploded perspective view of the natural revetment structure according to the first embodiment.

4 is a perspective view of a natural shore security structure according to a second embodiment.

Figure 5 is a side cross-sectional view of the natural revetment structure according to the third embodiment.

6 is a perspective view of a natural shore security structure according to the fourth embodiment.

7 is a perspective view of a natural shore security structure according to the fifth embodiment.

8 is a partial plan view of FIG. 7.

9 is a side view of the pile member.

10 is a side cross-sectional view of a natural repose structure according to a sixth embodiment;

11 is a side cross-sectional view of a natural repose structure according to a seventh embodiment;

<Explanation of symbols on main parts of the drawings>

2; Underground 4; Vegetation

10; Frame 10A; Vegetation space department

20; Binding member 40; Pile member

50; Heartwood 60; Hygroscopic member

Claims (16)

Vegetation space portion (10A) for the vegetation (4) is formed, a plurality of the frame 10 is installed in contact with each other; Natural relief structure comprising a binding member (20) for binding the plurality of the frame (10) to move relative to each other. The method according to claim 1, The binding member 20 is a natural revetment structure made of a flexible material. The method according to claim 2, The binding member 20 is a natural revetment structure taking a corrugated pipe shape (22). The method according to claim 2, The binding member 20 is a natural revetment structure taking a band shape (24). The method according to any one of claims 1 to 4, The binding member 20 is a natural revetment structure is installed so as to be interposed between the interface between the adjacent frame (10). The method according to any one of claims 1 to 4, The binding member 20 is a natural revetment structure is installed to be surrounded by the adjacent frame (10). The method according to any one of claims 1 to 4, At least one recess 10B is formed in the frame 10 so that at least a portion of the binding member 20 can be inserted and installed. The method according to any one of claims 1 to 4, The vegetation space portion (10A) is formed so as to penetrate the vegetation (4) so as to slide to the ground (2) and the natural revetment structure is formed in a variable shape that can be expanded in cross section as the vegetation (4) is grown. The method according to claim 8, The vegetation space portion (10A) is a natural revetment structure that is filled with a corrosive filler material (12) for nutrient supply of the vegetation (4). The method according to any one of claims 1 to 4, Core material connected to the vegetation space portion 10A of the frame 10 and embedded in the ground (2) to induce moisture in the ground (2) to the vegetation space portion (10A) of the frame (10) Natural shore revetment structures, including 50). The method according to any one of claims 1 to 4, Is connected to at least one of the vegetation space portion 10A of the mold 10 and buried in the ground (2) to induce moisture in the ground (2) to the vegetation space portion (10A) of the mold (10) Core material 50; Natural revetment structure further comprises a hygroscopic member (60) for guiding the water induced by the core 50 to the plurality of molds (10). The method according to any one of claims 1 to 4, A natural revetment structure further comprises pile members (40) in one row or two or more rows on the lower side of the slope on which the frame (10) is installed. The method according to claim 12, The pile member 40 has a body portion 42 at least partially embedded in the ground (2); Natural body safety structure comprising a plurality of branch portions (44) protruding on the side of the body portion (42) buried in the ground (2). 14. The method of claim 13, The pile member 40 is a natural shore relief structure that is wood. The method according to claim 14, The wood forming the pile member 40 is a natural revetment structure that is thinning. 14. The method of claim 13, The pile member 40 is preservatively treated with an antiseptic solution containing salt, and a natural type in which the coating layer 46 is formed by a coating material including bentonite on the side portion and the branch portion 44 of the body portion 42. Shoreline structure.

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