KR102264637B1 - River bank Shore Erosion Prevention Structure Using Coated Biopolymer Porous on Concrete block, and Construction Method therefor - Google Patents

Abstract

The present invention relates to a concrete block-retained waterside slope erosion prevention structure using biopolymer-coated porous aggregate, and a construction method thereof. When an existing concrete block installed on a waterside slope is aged or partially damaged, a porous aggregate layer is formed by laying porous aggregate, coated with a biopolymer, on an upper surface of the existing concrete block without removing the existing concrete block, and a vegetation soil layer is firmly formed on the surface of the porous aggregate layer. Even when strong running water energy acts thereon during a flood, the waterside slope is not lost or separated, and thus the structure is protected from erosion. The structure has a porous structure, thereby allowing the growth of plants thereon. The structure can provide various types of pores in a portion thereof contacting water to guide a fine flow of water, thereby providing a habitat for zoobenthos and fry or small fishes, and allows the river bed and the waterside slope to be integral to prevent scouring of the river bed and the waterside slope, thereby ensuring dimensional stability.

Description

River bank Shore Erosion Prevention Structure Using Coated Biopolymer Porous on Concrete block, and Construction Method therefor

The present invention relates to a "waterside slope erosion prevention structure" for protecting from erosion of a waterside slope that comes in contact with water as a slope, such as a shoreline or embankment, and a "construction method" for such an erosion prevention structure. For example, when the function of the existing concrete blocks installed on the waterside slope is deteriorated or partially damaged, etc., the existing concrete blocks are not removed, but porous aggregates coated with biopolymers are used on the top surface of the porous aggregate. By forming an aggregate layer and firmly forming a vegetative soil layer on the surface of the porous aggregate layer, even when strong running water energy acts like a flood, the waterside slope is not lost or separated, protecting it from erosion and has a porous structure. Plants can grow there, and in the part in contact with water, various types of voids are provided to induce the flow of fine water to provide habitat for benthic animals, fry and small fish, as well as to integrate the river bed with the waterside slope. It relates to "a concrete block retention type waterside slope erosion prevention structure using bio-polymer-coated porous aggregate and its construction method", which can simultaneously prevent scour of the waterside slope and secure dimensional stability.

A method of laying blocks made of concrete is used in the maintenance of slopes that come into direct contact with water, ie, waterside slopes, such as shorelines and embankments. In particular, in the case of the riverbank of the city center, it is uniformly maintained using these concrete blocks to secure the water flow function. However, maintenance of the waterside slope by the laying of concrete blocks causes problems such as damage to habitats, suppression of plant growth, and damage to landscape.

As a prior art for solving this problem, Korean Patent Registration No. 10-1568828 discloses a very useful technique for constructing a shoreline protection structure in a form that facilitates the survival and growth of waterfront plants. However, this prior art is suitable for application to the waterside slope in a state where the soil is exposed as it is because the concrete block is not installed. When concrete blocks are already installed on the waterside slope, in order to apply the above useful prior art, the existing concrete blocks must be removed. There is an increasing problem.

Republic of Korea Patent Publication No. 10-1568828 (Notice on November 16, 2015).

The present invention was developed to overcome the limitations of the prior art as described above, and by forming a porous protective structure on the waterside slope without removing the existing concrete blocks with deteriorated functions due to aging or partially damaged from the waterside slope, To provide an eco-friendly waterside slope erosion prevention structure that can protect against erosion and provide a favorable environment for the growth and habitation of plants and various other organisms, and furthermore, a method for efficiently constructing such a waterside slope erosion prevention structure aims to provide

In order to achieve the above object, in the present invention, as a waterside slope erosion prevention structure 100 built on an existing concrete block 210 that has already been installed on a waterside slope in contact with water, it is coated with a biopolymer. A porous aggregate layer (1) formed to have a porous structure by laying on the existing concrete block (210) so that the biopolymer coating aggregate has a designed thickness; and a vegetation soil layer (2) stacked on the porous aggregate layer (1) having a designed thickness; Before the porous aggregate layer 1 is formed, the fence member 4 made of a plate-shaped member extending long while having a height in the thickness direction is erected vertically in the thickness direction, so that the waterside slope is formed by the fence member 4 It is in a state of being partitioned into a plurality of regions along the slope; The porous aggregate layer (1) is formed in a state in which the bio-polymer-coated aggregate is filled in the area partitioned by the fence member (4), and the flow-down and loss of the bio-polymer-coated aggregate is prevented by the fence member (4), There is provided a waterside slope erosion prevention structure, characterized in that it protects the waterside slope from erosion and provides a growth environment for animals and plants.

In addition, in the present invention, in order to achieve the above object, as a method of constructing a waterside slope erosion prevention structure 100 on an existing concrete block 210 that has already been installed on a waterside slope in contact with water, a plurality of waterside slopes along the slope Installing a fence member (4) made of a plate-shaped member that is elongated while having a height in the thickness direction so as to be divided into two regions in the thickness direction from the upper surface of the existing concrete block (210); By filling the biopolymer coated aggregate coated with the biopolymer to have a thickness on the upper surface of the existing concrete block 210 within the area partitioned by the fence member 4, the biopolymer coated aggregate by the fence member 4 Forming a porous aggregate layer (1) having a porous structure on the existing concrete block (210) in a state in which the flow and loss of is prevented; And configured to include the step of forming a vegetative soil layer (2) to have a thickness on the porous aggregate layer (1); There is provided a construction method of a waterside slope erosion prevention structure, characterized in that it protects the waterside slope from erosion and builds a waterside slope erosion prevention structure that provides a growth environment for animals and plants on an existing concrete block.

In the waterside slope erosion prevention structure and its construction method according to the present invention, a protective net member (3) is further installed on the vegetation soil layer (2) to prevent the soil from flowing out of the vegetation soil layer (2); From the upper surface of the net member (3), the fixing member (6) is installed through penetration in the thickness direction so that the net member (3) can be fixed, and further, before the fence member (4) is installed, the anchor member (5) is installed in the existing installed vertically between the concrete blocks 210 in the thickness direction, and both longitudinal ends of the fence member 4 are bound to the fence member 4, respectively; At both ends in the longitudinal direction of the fence member 4, binding members 40 are provided above and below the thickness direction, respectively; The anchor member 5 is provided integrally with the anchor body 50, which is directly penetrated into the waterside slope soil body 200 and is embedded, and the upper end of the anchor body 50, so that the binding member 40 of the fence member 4 is It may be configured to include a fastening ring portion 51 in which a fastening groove 52 to be hooked and fastened is formed.

In the present invention, the waterside slope erosion prevention structure is built without removing the existing concrete block covering the soil and sand of the waterside slope, and it is very effective to prevent the erosion of the waterside slope even when strong running water energy such as a flood occurs. can Therefore, according to the present invention, when taking preventive measures such as erosion on the waterside slope, the "environmental load" caused by the removal of the existing concrete block can be minimized, and the time and cost for removing the existing concrete block can be reduced. Thus, the overall construction period can be shortened and the construction cost can be reduced as well.

In addition, in the case of the waterside slope erosion prevention structure according to the present invention, the function of the existing concrete block is strengthened by coating the new structure on the existing concrete block, and in particular, the adhesion structure that does not cause separation between the existing concrete block and the porous aggregate layer Because it has , the lifting phenomenon by running water buoyancy does not occur. Therefore, according to the present invention, even when strong running water energy such as a flood acts, scouring and separation are prevented, thereby creating a dimensionally safe waterside slope environment.

In the present invention, since the porous aggregate layer formed on the existing concrete block has a porous structure, soil and vegetation seeds are supplied through the porous pores, making it easy to adhere to food, and thus an ecologically sound environment can be easily created. advantage is demonstrated. In the waterside slope erosion prevention structure according to the present invention, since the old concrete block is covered with a porous aggregate layer and a vegetative soil layer, a good environment is created for plants to thrive and grow, and a new vegetation environment with good environment and good scenery is created. effect will be exerted.

Furthermore, in the waterside slope erosion prevention structure according to the present invention, the above porous structure is particularly advantageous not only for plants but also for various living things. It will function as a habitat for rivers and, accordingly, will exert a very favorable effect on the restoration of the ecological environment of river creatures.

1 is a schematic cross-sectional view showing a state in which an erosion prevention structure according to the present invention is constructed using an existing concrete block installed on a waterside slope.
2 and 3 are schematic perspective views of a waterside slope sequentially showing the process of installing an anchor member and a fence member on an existing concrete block in the present invention, respectively.
4 is a schematic lateral cross-sectional view corresponding to FIG. 1 showing a state in which an anchor member is installed.
5 and 6 are schematic perspective views of an example of a fence member, respectively.
7 is a schematic perspective view of an example of an anchor member.
FIG. 8 is a schematic cross-sectional view taken along line BB of FIG. 7 showing the cross-sectional shape of the anchor body;
9 is a schematic enlarged perspective view of the circle C of FIG. 3 showing in detail a state in which the binding member of the fence member is fastened to the fastening ring portion of the anchor member.
10 is a schematic perspective view showing a state formed by laying a porous aggregate layer subsequent to the state of FIG. 3 .
11 is a schematic lateral cross-sectional view corresponding to FIG. 1 for a state in which a porous aggregate layer is formed.
12 is a schematic perspective view corresponding to FIG. 10 showing a state formed by laying a vegetation soil layer on a porous aggregate layer.
13 is a schematic lateral cross-sectional view corresponding to FIG. 11 for a state in which the vegetation soil layer is formed.
FIG. 14 is a schematic perspective view corresponding to FIG. 12 showing a state in which a net member is installed on the vegetation soil layer subsequent to the state shown in FIG. 12 .
15 is a schematic lateral cross-sectional view corresponding to FIG. 13 for a state in which the net member is laid.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Although the present invention has been described with reference to the embodiment shown in the drawings, which is described as one embodiment, the technical idea of the present invention and its core configuration and operation are not limited thereby. For convenience, in the entire specification including the claims, "thickness direction" means a vertical direction corresponding to the thickness of the waterside slope erosion prevention structure 100 according to the present invention, and "slope direction" is the direction in which the waterside slope is inclined. means, and "horizontal direction" means a direction orthogonal to the inclination direction.

1 is a schematic lateral cross-sectional view showing a state in which the waterside slope erosion prevention structure 100 according to the present invention is constructed using the existing concrete block 210 installed on the waterside slope. As shown in the drawing, the waterside slope erosion prevention structure 100 of the present invention is built on the existing concrete block 210 that has already been installed on the waterside slope in contact with water, and from the bottom in its thickness. It has a configuration in which the porous aggregate layer (1) and the vegetation soil layer (2) are sequentially stacked while going upward.

The porous aggregate layer 1 is made of aggregate coated with biopolymer (“biopolymer coated aggregate”) and has a porous structure. In forming the porous aggregate layer 1, a fence member 4 for preventing the biopolymer-coated aggregate from flowing down and outflowing along the slope divides the upper surface area of the existing concrete block 210 into a plurality of filling areas. It is installed in an erected form in the thickness direction. At this time, the anchor member 5 is used for installation of the fence member 4 . If necessary, a protective net member 3 may be further installed and installed on the vegetation soil layer 2, and for fixing the net member 3, a fixing member 6 that is installed vertically penetrating in the thickness direction from the upper surface is More may be provided.

2 and 3, respectively, in the construction of the waterside slope erosion prevention structure 100 on the existing concrete block 210 installed on the waterside slope according to the present invention, the anchor member 5 and the fence member 4 are installed. A schematic perspective view of the waterside slope showing the process sequentially is shown. 4 is a schematic lateral cross-sectional view corresponding to FIG. 1 showing a state in which the anchor member 5 is installed.

In the present invention, in order to build the waterside slope erosion prevention structure 100, the biopolymer coating aggregate is laid on the existing concrete block 210 to have a pre-designed thickness to form the porous aggregate layer 1, the slope of the waterside slope As a result, the biopolymer-coated aggregate may flow down the slope. In addition, the waterside slope erosion prevention structure 100 of the present invention can be constructed under water, but there is also a possibility that the biopolymer coating aggregate may be lost when a flow velocity of more than a certain level occurs.

In order to prepare for this, in order to construct the waterside slope erosion prevention structure 100 according to the present invention, a fence member 4 is first installed on the upper surface of the existing concrete block 210 as shown in FIGS. 2 to 4 . . The fence member 4 is installed to prevent flow-down and loss of the bio-polymer-coated aggregate constituting the porous aggregate layer 1, and before the porous aggregate layer 1 is formed, in the thickness direction as shown in the drawing. It consists of a plate-shaped member extending long while having a predetermined height and is installed in the form of standing up in the thickness direction. In order to prevent the biopolymer-coated aggregate from flowing down, the fence member 4 is installed so that the elongated direction is in the horizontal direction, and may be installed at a predetermined interval on the upper surface of the existing concrete block along the slope of the waterside slope. Therefore, the waterside slope is in a state of being divided into a plurality of filling areas while going in the inclined direction by the fence member (4). The length of the fence member 4 can be adjusted in the horizontal direction according to the strength of the running water. In the section where the flow rate is strong, the length in the horizontal direction is preferably 1.0 to 1.5 m, and in the section where the flow speed is gentle, it is more It can be installed at scale. In particular, if necessary, by adding installation so that the elongated direction of the fence member 4 becomes the inclined direction of the waterside slope, the upper surface area of the existing concrete block 210 is divided into a plurality of areas also in the horizontal direction. It is also possible to make the entire slope divided in a grid pattern.

5 and 6 are schematic perspective views of an example of the fence member 4, respectively. As illustrated in FIG. 5 , the fence member 4 is preferably made of a mesh member having a mesh so that the fluid can move, but it is not necessarily limited to the mesh member, and as illustrated in FIG. 6 , the movement of the fluid is possible. As long as the member is provided with a through hole, it may be made of a simple plate member. When the fence member 4 is made of a mesh member, it is preferably made of a mesh of a steel material having excellent durability or a PP/PE-based material. Reference numeral 40 in the drawing is a ring-shaped binding member 40 provided at the end of the fence member 4 in the horizontal direction so that it can be bound by being caught in the fastening groove of the anchor member 5 to be described later. A plurality of binding members 40 may be provided at intervals in the thickness direction from the horizontal end of the fence member 4 .

When installing the fence member (4), the anchor member (5) can be used. As shown in FIGS. 2 and 3, after installing the anchor member 5 in the thickness direction between the existing concrete blocks 210 into the waterside slope soil body 200, both ends of the fence member 4 in the longitudinal direction are anchored by the anchor member. By binding to (5), the operation of installing the fence member 4 upright in the thickness direction can be performed very easily. 7 is a schematic perspective view of an example of the anchor member 5 is shown, the anchor member 5 is directly penetrated into the waterside slope soil body 200 and the anchor body 51 and the anchor body 51 ) may have a configuration including a fastening ring portion 50 that is integrally provided on the upper end of the fence member 4 and is fastened by the binding member 40 of the fence member (4). FIG. 8 is a schematic cross-sectional view showing the cross-sectional shape of the anchor body 50 as a cross-sectional view taken along line B-B of FIG. 7 . The anchor body 50 may be made of a member having a cross-section or an English letter T-shaped cross-section in the longitudinal direction as illustrated in the drawings, and in this case, when installed through the waterside slope soil body 200, the existing It becomes easier to fit between the concrete blocks 210, and after being penetrated into the waterside slope soil body 200, strong resistance to torsion, etc. is exerted, and the effect of stably maintaining the penetration installed state is exhibited.

9 is a schematic enlarged perspective view of the circle C of FIG. 3 showing in detail the state in which the binding member 40 of the fence member 4 is fastened to the fastening ring part 51 of the anchor member 5 is shown. . A plurality of concave fastening grooves 52 may be formed in the fastening ring part 50 . Therefore, the ring-shaped binding member 40 provided at the end of the fence member 4 may be fastened by being caught in the upper and lower fastening grooves 52, respectively. In this configuration, the fence member 4 can be very easily attached to the anchor member 5 and installed, and in particular, even if the fence member 4 is made of a net member, the fence member (4) in a form that maintains a plane in the thickness direction ( 4) has the effect that it can be installed very stably. The fastening grooves 52 are formed in a number corresponding to the number of the binding members 40 provided in the fence member 4 . When the fence member 4 is made of a net member, it is preferable to install the fence member 4 by pulling the net member taut so as not to sag or sag.

As described above, after the fence member 4 is installed, the porous aggregate layer 1 is formed by laying the biopolymer-coated aggregate on the upper surface of the existing concrete block 210 to a pre-designed thickness. FIG. 10 is a schematic perspective view showing a state formed by laying the porous aggregate layer 1 following the state of FIG. 3 , and FIG. 11 corresponds to FIG. 1 for the state in which the porous aggregate layer 1 is formed. A schematic transverse cross-sectional view is shown. For convenience, in FIG. 10, only the porous aggregate layer 1 formed between the two fence members 4 is illustrated.

The aggregate constituting the porous aggregate layer 1 is a biopolymer (vegetable polyurethane) coated on the surface, and the aggregate is bonded to each other by a biopolymer, a non-toxic binding material. As described above, the porous aggregate layer 1 formed to a predetermined thickness by the biopolymer-coated aggregate has a porous structure in which many pores exist between the aggregates. It primarily functions to reduce the flow of running water, and furthermore, it has a function of inducing sedimentation of soil and rooting of plants through the voids between aggregates.

In addition, the porous structure of the porous aggregate layer 1 has not only a function of allowing vegetation to take root by taking root, but also has a function as a habitat for living things such as benthic animals and fish. Since the biopolymer in the porous aggregate layer 1 is an adhesive material that functions as a binder, the aggregates coated by the biopolymer are firmly attached to each other to minimize separation, peeling, or loss.

In forming the porous aggregate layer 1 as described above, the size of the biopolymer coated aggregate may be made constant over the entire thickness, but the size of the biopolymer coated aggregate may be changed in the thickness direction, and the size of each aggregate It may be formed of a plurality of layers different from each other. When forming the porous aggregate layer 1 in the form of a multi-layer by varying the size of the biopolymer-coated aggregate as described above, it is preferable to form a biopolymer-coated aggregate with a smaller size at the bottom, for example, the bio-polymer coating. Aggregate sizes of 40mm, 25mm and 13mm can be sequentially stacked and used. Of course, the size of the biopolymer coating aggregate is not limited thereto. When forming the porous aggregate layer 1 using the biopolymer-coated aggregate, it is preferable to perform upper compaction after laying in order to increase the contact area with the existing concrete block 210 .

Since the biopolymer-coated aggregate is installed in a state where the fence member 4 is already installed, the bio-polymer-coated aggregate rides the slope of the waterside slope and flows in the inclined direction by the function of the fence member 4 in a state where the flow in the inclined direction is minimized. (1) is achieved, and the loss of the biopolymer coating aggregate is minimized by the fence member 4 even during use, so that a stable state can be maintained.

After the porous aggregate layer (1) is formed, the vegetation soil layer (2) is formed to have a designed thickness by laying soil on its upper surface. 12 is a schematic perspective view showing a state formed by laying the vegetation soil layer 2 on the porous aggregate layer 1 following the state of FIG. 10, and in FIG. 13, the vegetation soil layer 2 is formed. A schematic transverse cross-sectional view corresponding to FIG. 11 is shown. In FIG. 12, for convenience, only the porous aggregate layer 1 and the vegetation soil layer 2 formed between the two fence members 4 were extracted and illustrated. The vegetation soil layer 2 is basically composed of soil, and preferably consists of fine soil containing humus and plant seeds for germination, early establishment and growth of plants. It is preferable that the soil forming the vegetation soil layer 2 can penetrate into the pores between the biopolymer-coated aggregates constituting the porous aggregate layer 1, and in particular, the thickness of the vegetation soil layer 2 is preferably 5 cm or more. .

If necessary, a protective net member 3 may be further installed and installed on the vegetation soil layer 2 in order to prevent the soil from flowing out of the vegetation soil layer 2 due to rain or the like before plants are established. 14 is a schematic perspective view showing a state in which the net member 3 is installed on the vegetation soil layer 2 following the state of FIG. 12, and in FIG. 15, the net member 3 is installed in a state A schematic transverse cross-sectional view corresponding to FIG. 13 is shown. 14, only the porous aggregate layer (1), the vegetation soil layer (2) and the net member (3) installed between the two fence members (4) are extracted and illustrated for convenience. When installing the net member 3 as illustrated in the drawings, the fixing member 6 may be penetrated in the thickness direction from the upper surface of the net member 3 to firmly fix the net member 3 . The net member 3 may be made of a jute net made of jute.

As seen above, in the waterside slope erosion prevention structure 100 according to the present invention, the existing concrete block 210 covering the soil of the waterside slope is not removed and built while remaining as it is. perform the function In the present invention, since the existing concrete block 210 is not removed by kicking off, environmental waste called the existing concrete block 210 does not occur, so that the so-called "environmental load" can be minimized, and the removal of the existing concrete block 210 is reduced. As it is possible to reduce the time and cost for construction, the overall construction period can be shortened and the construction cost can also be reduced.

In addition, in the waterside slope erosion prevention structure 100 according to the present invention, since the old concrete block 210 is covered with the porous aggregate layer 1 and the vegetation soil layer 2, a good environment for plants to thrive and grow. It also has the effect of creating a new vegetation environment that is environmentally friendly and has a good landscape.

In particular, in the case of the waterside slope erosion prevention structure 100 according to the present invention, by forming a new structure by covering the existing concrete block, the function of the existing concrete block is strengthened, and between the existing concrete block and the porous aggregate layer (1) Since it has a close contact structure that does not cause separation, the lifting phenomenon due to running water buoyancy does not occur. Therefore, according to the present invention, scour and escape during flooding are prevented, thereby creating a dimensionally safe waterside slope environment.

Above all, in the present invention, since the porous aggregate layer (1) formed on the existing concrete block has a porous structure, soil and vegetation seeds are supplied through the porous pores, making it easy to adhere to food, and thus an ecologically sound environment is easy The advantage of being able to create it is demonstrated.

Furthermore, in the waterside slope erosion prevention structure 100 according to the present invention, the above porous structure is particularly advantageous not only for plants but also for various living things. And it functions as a habitat for benthic animals, thereby exerting a very beneficial effect on the ecological environment restoration of river organisms.

1: Porous aggregate layer
2: Vegetation soil layer
3: Net member
4: Fence member
5: Anchor member
6: Fixing member
100: waterside slope erosion prevention structure
200: waterside slope soil
210: conventional concrete block

Claims (6)

As a waterside slope erosion prevention structure built on an existing concrete block that has already been installed on the waterside slope in contact with water,
a porous aggregate layer formed to have a porous structure by being laid on an existing concrete block so that the bio-polymer-coated aggregate coated with the bio-polymer has a thickness; and
It is configured to include a vegetative soil layer laminated with a thickness on the porous aggregate layer;
Before the porous aggregate layer is formed, the anchor member is installed vertically between the existing concrete blocks in the thickness direction. is configured to include a fastening ring integrally provided on the upper end of the;
A fence member composed of a plate-shaped member extending long and having a height in the thickness direction is erected in the thickness direction on the upper surface of the existing concrete block, and the waterside slope is divided into a plurality of areas along the slope by the fence member. , At both ends in the longitudinal direction of the fence member, binding members are provided above and below in the thickness direction, respectively, and the binding members of the fence member are respectively caught in the fastening grooves of the fastening ring portion and are fastened to the anchor member;
In a state where the waterside slope is partitioned by the fence member, the bio-polymer-coated aggregate is filled in the area partitioned by the fence member, and the flow-down and loss of the bio-polymer-coated aggregate is prevented by the fence member, and a porous aggregate layer is formed By becoming, the waterside slope erosion prevention structure, characterized in that it protects the waterside slope from erosion and provides a growth environment for animals and plants.
According to claim 1,
A protective net member is further installed on the vegetation soil layer in order to prevent the soil from flowing out of the vegetation soil layer;
A waterside slope erosion prevention structure, characterized in that the fixing member is penetrated in the thickness direction from the upper surface of the net member and the net member is fixed.
delete A method of constructing a waterside slope erosion prevention structure on an existing concrete block that has already been installed on a waterside slope in contact with water,
An anchor member comprising an anchor body that is directly penetrated into the waterside slope soil body and a fastening groove is formed and a fastening ring part integrally provided at the upper end of the anchor body is placed vertically between the existing concrete blocks in the thickness direction. upright installation;
A fence member composed of a plate-shaped member extending long and having a height in the thickness direction so that the waterside slope is divided into a plurality of areas along the slope is erected on the upper surface of the existing concrete block in the thickness direction, and both ends of the fence member in the longitudinal direction is provided with a binding member above and below the thickness direction, respectively, the step of installing the fence member by hooking the binding member of the fence member to the fastening groove of the fastening ring portion and fastening it with the anchor member;
The biopolymer coated aggregate coated with the biopolymer is filled to have a thickness on the upper surface of the existing concrete block within the area partitioned by the fence member, and the flow and loss of the biopolymer coated aggregate is prevented by the fence member. Forming a porous aggregate layer having a porous structure on the existing concrete block; and
It is configured including the step of forming a vegetative soil layer to have a thickness on the porous aggregate layer;
A method of constructing a waterside slope erosion prevention structure, characterized in that it protects the waterside slope from erosion and builds a waterside slope erosion prevention structure on an existing concrete block, which provides a growth environment for animals and plants. 5. The method of claim 4,
Laying a protective net member on the vegetation soil layer to prevent the soil from flowing out of the vegetation soil layer; and
For fixing the net member, the construction method of the waterside slope erosion prevention structure, characterized in that it further comprises the step of installing the fixing member in the thickness direction from the upper surface of the net member.
delete

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