KR20090116355A - Slope protection construction method by means of canal block and a composition for bio-degradable canal block - Google Patents

Abstract

PURPOSE: A slope protection construction method a bio-degradable channel block is provided to discharge surface water in the rain and to reduce environmental contamination. CONSTITUTION: A slope is formed on the mature soil. A long type straight channel block(10) and a short type straight channel block(30) are connected with a Y-shaped connecting block(20) and a V-shaped connecting block(40). A honeycomb-shaped structure(500) with an interstitial space of the hexagon is formed. The interstitial space is filled with soil(80) and plants are planted. The honeycomb-shaped structure is covered with a protection net(200).

Description

Slope protection construction method by means of canal block and a composition for bio-degradable canal block}

The present invention relates to a surface protection method using a waterway block and a composition for a biodegradable waterway block. According to the present invention, the drainage of the slope is made to be stable at a small flow rate, and the waterway block installed on the slope is biodegraded after greening and is naturally composted so that there is no fear of environmental pollution.

The slope protection method is to prevent the collapse of slopes by installing on slopes in the fill area or cut area.

Such conventional slope protection methods include a concrete block method for manufacturing concrete blocks at the factory, and a concrete grid block method for placing concrete after reinforcement by installing formwork at the site. Due to the lack of countermeasures against the flow of water flowing from the top to the bottom due to the falling rain, the dent around the block occurs and thus the slope is frequently generated.

Another conventional method is a method of manufacturing a block having a water channel through the injection operation of non-degradable synthetic resin material such as PP, PE, and the like, and assembling and installing it on the slope. In this case, the lightweight construction material is good construction, and the drainage along the waterway is now widely constructed.

However, in this case, it is a reality that it emits a large amount of various harmful substances such as dioxin and environmental hormones due to combustion when it is made of synthetic resin and is exposed to the danger of air pollution with a large amount of ozone generation. Its role is meaningless, so it must be composted after a certain period of time, but it takes a long time for 100 years to be naturally decomposed, and many problems are required such as the disposal of waste materials for road expansion and new road construction. There is a situation.

In conclusion, the conventional slope protection block technology has been overlooked on the environmental pollution of the raw materials constituting the products of the construction method by focusing on the functional aspects such as slope protection, ground stability, and greening. The reality is that there are not enough alternatives for slope protection blocks.

On the other hand, when installed on the slope using the waterway block, the drainage needs to be made structurally natural and stable. That is, the flow rate should not flow too fast and overflow into the soil section. This need is further demanded in rainy weather.

The present invention is to solve the above problems, by producing a composition for the biodegradable waterway block in the form of pellets, by presenting the waterway block using the functional aspect of slope protection such as slope protection and ground stability, greening To satisfy all the and to provide a solution to environmental pollution due to the raw material of the prior art problems of the raw material.

In another aspect, the present invention provides a protection method of the slope using a waterway block so that the ground water or surface water during rainfall, such as natural and stable drainage.

According to the object of the present invention, the present invention has a long straight water channel block in which the water channel is formed in the form of a straight line, and a short straight water channel block in which the water channel is formed in the form of a straight line, which is shorter in length than the long date water channel block, and the overall Y character. As a slope protection method for protecting the slope using a Y-shaped connecting block formed with a channel having three directions as a shape, and a channel block including a V-shaped connecting block formed with a channel having a two direction as a V-shape as a whole. ; A slope forming process of forming a slope by filling or cutting; With respect to the slope, the short date channel block is disposed substantially along the inclined direction of the slope, and the long date channel block is disposed to be inclined in both directions about both ends of the short date channel block. A short water channel block and a long water channel block are connected to each other through the Y-type connection block and the V-type block to form a honeycomb structure in which a hexagonal lattice pattern is repeated as a whole; Filling the soil inside the hexagonal lattice of the honeycomb-shaped structure and attaching, spraying, or planting the stuffed soil; It provides a slope protection method comprising a protective net installation step of covering the honeycomb structure with a protective net.

In the embodiment of the present invention, the long date-containing block, the short date channel block, the Y-type connecting block and the V-type connecting block is a U-shaped cross-section of the waterway space is formed.

According to the present invention, the long date channel block, the short date channel block, the Y-type block and the V-type block is 35 to 55% by weight biodegradable resin based on 100% by weight of the composition for biodegradable channel block; It should be a biodegradable hydroblock prepared by injecting a composition for pellets biodegradable hydroblock in the form of pellets obtained by mixing and extruding 40 to 65% by weight of talc.

At this time, the biodegradable waterway block composition may further comprise 10 wt% or less of ocher powder based on 100% by weight of the waterway block composition.

More preferably, the biodegradable resin is polylactic acid (PLA), polybutylene succinate (PBS), polybutylene succinate adipate (PBSA), and polybutylene adipate-co-telephthalate ( PBAT) is preferably selected.

In another aspect of the present invention, the present invention is based on 100% by weight of the composition for biodegradable waterway blocks, 35 to 55% by weight biodegradable resin; It provides a composition for biodegradable waterway blocks in pellet form obtained by mixing and extruding 40 to 65% by weight of talc.

In this case, based on 100% by weight of the composition for the waterway block, it is preferable to further comprise up to 10% by weight ocher powder.

According to the present invention, the biodegradable resin is polylactic acid (PLA), poly (ε- caprolactone) (PCL), polybutylene succinate (PBS), polybutylene succinate- adipate (PBSA), One resin selected from the group consisting of polybutylene adipate-co-telephthalate (PBAT) and polyvinyl alcohol (PVA) or a mixture of more than one resin.

The biodegradable resin may comprise at least one of polylactic acid (PLA), polybutylene succinate (PBS), polybutylene succinate-adipate (PBSA), and polybutylene adipate-co-telephthalate (PBAT). It is desirable to choose.

In another aspect, the present invention provides a biodegradable channel block prepared by injecting the composition for the biodegradable channel block in the form of pellets.

The waterway block prepared with the waterway block composition according to the present invention satisfies all the functional aspects of slope stability (surface protection, ground stability, greening, etc.) and at the same time composting conditions, that is, at a temperature of 60 ° C. and a humidity of 80%. It can be decomposed in activated microorganisms, so it can be composted after installation of waterway blocks and greening, and can greatly contribute to environmental improvement by being fully biodegradable in nature.

In addition, the construction method of the slope according to the present invention is a natural flow of water along the waterway to make the drainage smooth and stable.

First, Figure 1 and Figure 2 is a view showing a waterway block installed on the slope according to the present invention.

Figure 1 (a) and (b) shows a long straight (10) and a short straight channel block 30 in accordance with an embodiment of the present invention, respectively.

(A1), (a2) and (a3) of FIG. 1 show a plan view, a cross-sectional side view and a perspective view of the elongated water channel block 10, respectively, and (b1), (b2) and (b3) of FIG. A plan view, a side cross-sectional view, and a perspective view of the short date channel block 30, respectively, are shown.

Referring to Figure 1 (a), the long straight channel block 10 is in the form of a straight cross-section perpendicular to its longitudinal direction is formed in a substantially U-shaped water flow path 18 is formed.

The long date channel block 10 is formed on both sides of the b-shaped support portion 14 is formed on both sides from the side to the bottom surface to be supported on the slope 1000 (see Fig. 4), both ends of which will be described later The butt portion 11 is formed to abut against the butt portions 21 and 41 of the connection block 20 and 40.

In addition, at both ends of the bottom surface of the waterway space 18 is formed a seating portion 118 to be connected to the connection block 20, 40 to be described later.

The long date channel block 10 is installed on the slope 1000 by driving an anchor (not shown) through the bottom surface of the waterway space 18 to the slope 1000.

Referring to Figure 1 (b), the short date channel block 30 is in the form of a straight, its length is smaller than the long date channel block 10. The short date channel block 30 is formed in a U-shaped cross section perpendicular to the longitudinal direction of the water channel space 38 through which water flows.

The single-shaped water channel block 30 is formed on both sides of the b-shaped support portion 34 is formed on both sides from the side to the bottom surface to be supported on the slope 1000, both ends of the connection block 20 to be described later The butt | joint part 31 which opposes the butt | joint part 21 and 41 of 40 is provided.

In addition, at both ends of the bottom surface of the waterway space 38, seating portions 318 are formed on which blocks 20 and 40 to be described later are mounted.

The short date channel block 30 is installed on the slope 1000 by driving an anchor (not shown) through the bottom surface of the waterway space 38 to the slope 1000.

Figure 2 shows a connection block 20, 40 according to an embodiment of the present invention, Figure 2 (a) is a Y-type connection block 20 (b) is a V-type connection block 40, respectively see.

Here, (a1) and (a2) of FIG. 2 show a plan view and a perspective view of the Y-type connecting block 20, respectively, and (b1) and (b2) of FIG. 2 show a plan view and a perspective view of the V-type connecting block 40, respectively. Seems.

Referring to Figure 2 (a), the Y-shaped connecting block 20 has a total of three directions in the shape of the Y-shape, the cross section perpendicular to the longitudinal direction for each direction is formed of approximately U-shaped water Flowing channel space 28 is formed in three directions.

The Y-shaped connecting block 20 is formed on both sides of the b-shaped support portion 21 is formed on both sides from the side to the bottom surface is supported on the slope 1000, which is the above-mentioned long straight channel block 10 or short It also serves as a butt part facing the butt parts 11 and 31 of the straight channel block 30.

The Y-shaped connecting block 20 is installed on the slope 1000 by installing an anchor (not shown) on the slope 1000 through the bottom surface at the center C1 of the waterway space 28.

Referring to Figure 2 (b), the V-shaped connection block 40 has a total of two directions in the shape of a V-shape, the cross section perpendicular to the longitudinal direction for each direction is formed of approximately U-shaped water Flowing channel space 48 is formed in two directions.

The V-shaped connecting block 40 is formed on both sides of the b-shaped support portion 41 is formed on both sides from the side to the bottom surface is supported on the slope 1000, which is the above-mentioned long straight waterway block 10 or short It also serves as a butt part facing the butt parts 11 and 31 of the straight channel block 30.

The V-shaped connecting block 40 is installed on the slope 1000 by installing an anchor (not shown) on the slope 1000 through the bottom surface of the channel space 48 in the center C2.

Through holes 12 and 32 are formed in each of the seating portions 118 and 318 of the above-mentioned long-length water channel block 10 and the short-length water channel block 30, respectively. 20 and through holes 22 and 42 are formed on the bottom surface of the V-shaped connecting block 40. Accordingly, these through-holes 12 when these connecting blocks 20 and 40 are inserted into and seated in the respective seating portions 118 and 318 of the long-length water channel block 10 and the short-length water channel block 30, respectively. And 22 or 12 and 42) (32 and 22 or 32 and 42) correspond to each other and couple the corresponding through holes to each other through coupling members (not shown) such as bolts and nuts.

3 shows that the elements 10, 30, 20, 40 of the waterway block described above are assembled and installed according to an embodiment of the invention.

As shown, the short date channel block 30 is disposed substantially along the inclined direction of the slope 1000 and has a long inclination in both directions about both ends of the short date channel block 30. The shape in which the low block 10 is disposed is repeated to form a honeycomb structure 500 in which the hexagonal lattice shape is repeated as a whole.

At this time, the two long straight channel block 10 and the short straight channel block 30 disposed with the inclination in both directions is made by the Y-type connecting block 20, the long straight channel block 10 The end of the Y-type connecting block 20 is inserted into the seating portion 118 of the end and the seating portion 318 of the end of the end of the short water channel block 30 is seated and the butt portion (11) (21) (31) are faced.

In addition, the coupling of the long date channel block 10 and the short date channel block 30 is made by the V-type connecting block 40, the seating portion 118 of the end of the long date channel block 10 And the end of the V-type connecting block 20 is inserted into the seating portion 318 of the end of the end of the short-numbered water channel block 30 is seated, and the butt portion (11, 41, 31) are butted together .

As such, the long straight channel block 10 and the short linear channel block 30 are connected in series through the Y-type connecting block 20 and the V-type connecting block 40, and a plurality of hexagonal lattices are mutually connected. A plurality of spaces (S) to form a honeycomb-like structure 500, each of the lattice space (S) is filled in the soil sand 80, it is mounted in this stuffed soil (80) Or greenery by spraying seeds or planting grass or shrubs.

Thereafter, the honeycomb-shaped structure 500 is covered with a protection net 200 using a fixing pin.

According to the present invention, the short date channel block 30 is disposed in an approximately inclined direction of the slope 1000, and the long date channel block 10 is centered at both ends of the short date channel block 30. The structure is disposed with the inclination in both directions, thereby allowing a stable and natural drainage.

That is, the long straight channel block 10 is disposed with a lateral inclination with respect to the slope of the slope 1000, and water along the channel 18 of the long straight channel block 10 is Slowly flows along the slope (see arrow f1) and is then collected in the Y-shaped connecting block 20 and flows quickly along the short-line waterway block 30 (see arrow f2), and again the slope of the long-length waterway block 10 It flows slowly along. (See arrow f3)

That is, when viewed as a whole, the flow time along the long elongated water block 10 is long and the flow along the short short water path block 30 is short. Accordingly, the flow rate of the drainage is reduced as a whole to achieve a natural and stable drainage.

4 is a view showing the process of the slope protection construction on the slope 1000 in accordance with the present invention.

First, slopes 1000 are formed by fill or cut. (FIG. 4A)

Next, with respect to the slope 1000, as described above, the long date channel block 10 and the short date channel block 30 using the Y-type connection block 20 and V-type connection block 40 mutually Coupled to form a honeycomb structure 500 in which a plurality of hexagonal lattice spaces S are formed. (B) of FIG. 4, if necessary, the induced drainage may be conducted to guide the groundwater to the waterway blocks 10, 30, 20, and 40.

Next, each of the lattice space (S) is stuffed into the soil (80), it is mounted on the stuffed soil (80) or sprayed seeds or planted grass or shrub to achieve greening. (FIG. 4C)

Thereafter, the honeycomb structure 500 is covered with the protection net 200.

The present invention also provides a composition for waterway blocks. Accordingly, the waterway block is biodegraded and disappeared after the greening is made after construction, and the problem of environmental pollution does not occur.

According to the present invention, based on 100% by weight of the composition for biodegradable waterway blocks, 35 to 55% by weight biodegradable resin; It provides a composition for biodegradable waterway blocks in pellet form obtained by mixing and extruding 40 to 65% by weight of talc. By injecting it to produce the above-mentioned channel block elements 10, 30, 20, 40. This will be described in more detail below.

The composition of the present invention comprises a biodegradable resin as the first component.

Such a biodegradable resin is a component that gives sufficient strength to the biodegradable waterway block while decomposing the waterway block in the activated microorganism under composting conditions, that is, a temperature of 60 ° C. and a humidity of 80%. In addition, such biodegradable resins are environmentally friendly components that can reduce ozone generation by about one third of environmental hormones and smoke and do not generate ozone when compared to polypropylene (PP) or polyethylene (PE), which is a conventional synthetic resin.

Biodegradable resins that can be used in the present invention include polylactic acid (PLA), poly (ε-caprolactone) (PCL), polybutylenesuccinate (PBS), polybutylenesuccinate-adipate (PBSA), poly It may comprise one resin or a mixture of more than one resin selected from the group consisting of butylene adipate-co-telephthalate (PBAT) and polyvinyl alcohol (PVA), and may preferably comprise polylactic acid. have.

Polylactic acid that can be used in the present invention includes polymers based on lactic acid units in the L-, D- or DL- form, and may include both homopolymers and copolymers thereof.

The content of the biodegradable resin in the waterway block composition of the present invention is 35 to 55% by weight, and preferably 40 to 45% by weight based on 100% by weight of the waterway block composition.

If the content of the biodegradable resin is less than 35% by weight, the strength (tensile strength) of the waterway block is remarkably decreased, so that the functional aspects of slope stability (surface protection and ground stability) cannot be satisfied, and its content exceeds 55% by weight. In this case, since the biodegradable resin is expensive, problems may arise in terms of economics of manufacturing costs.

In addition, the composition of the present invention includes stone dust as the second component.

Talc is a natural material, which helps to improve the elongation of biodegradable waterway blocks, and may have the required tensile strength of waterway blocks when a certain amount is mixed in consideration of economics.

Stone powder that can be used in the present invention may include all well-known powder (Talc) that can be used in the field of injection molding, and may preferably include powdered powder, more preferably 1,000 mesh (Mesh) ) May contain stone powders of the following sizes.

If the particle size of the stone powder exceeds 1,000 mesh, mixing and extrusion of the composition may be difficult and thus problems may occur in forming pellets.

The content of stone in the waterway block composition of the present invention is 40 to 65% by weight, and preferably 55 to 60% by weight, more preferably 50% by weight, based on 100% by weight of the waterway block composition.

If the content of stone powder is less than 40% by weight, there may be a problem in terms of economics due to the increase in the content of biodegradable resin, if the content of the content exceeds 65% by weight is difficult to form pellets during extrusion of the waterway block composition Problems may occur during injection.

The composition of the present invention comprises ocher powder as a third component.

The ocher powder is optional ingredient and may or may not be added to the composition of the present invention. This is to give the color of the biodegradable waterway block as a natural material and acts as a natural colorant.

The ocher powder that can be used in the present invention may use all the ocher commonly available in Korea or abroad, and may use a powder having a particle size of 300 mesh or less, but it is not particularly specified in the present invention.

The content of ocher powder in the waterway block composition of the present invention is preferably 10% by weight or less based on 100% by weight of the waterway block composition. If the content of the ocher powder exceeds 10% by weight, the color of the waterway block may be too dark, and there may be a problem in which the portion of the waterway block and the waterway block of the present invention exhibit heterogeneity.

In addition, as a substitute for loess powder for the coloring effect, the present invention may further comprise up to 10% by weight of colorant which can be used conventionally in the art. The colorant includes all colorants which can be used in the art, and may be selected so that the waterblock of the present invention does not form a heterogeneity with the part to be installed, and can have a color that can be naturally matched with the colorant alone or as a mixture thereof. Can be used.

In particular, when a colorant is required in the present invention, other colorants may be added together with the ocher powder, or other colorants may be added in place of the ocher powder.

The composition for biodegradable waterway blocks of the present invention comprising the above components is in the form of pellets, more specifically in the form of pellets prepared by mixing and extruding the above described components.

The mixing process may be carried out by conventional mixing methods and mixing means used in the art after adding the above components in any order sequentially or simultaneously to a vessel or a suitable mixer. Mixing is carried out for a time sufficient to allow the added constituents to be mixed uniformly, and this mixing time is not particularly limited in the present invention.

The extrusion process can be carried out using conventional extruders (eg, including single extruders, dual extruders, need extruders, etc.) used in the art. At this time, it is preferable that the temperature at the time of extrusion is 100-120 degreeC.

The composition for biodegradable waterway blocks in the form of pellets thus obtained is easy to store as a pre-product for producing a waterway block, and has the advantage of being easily manufactured as a waterway block.

In another aspect of the present invention, the present invention provides a biodegradable hydroblock prepared by injecting the composition for biodegradable hydroblock in the form of pellets.

The injection process can be carried out with all injection steps that can be used in the art, for example in cylinders and / or molds of the same or different temperatures in one or more injection machines. In this case, the type of injection machine, the number of cylinders, and the type of mold mold may be easily selected by those skilled in the art according to the type of biodegradable channel block to be manufactured, and the temperature may be appropriately selected accordingly. In one example, the cylinder temperature is 150 to 190 ℃, the mold mold temperature may be selected from 35 to 40 ℃.

The water channel blocks 10, 30, 20, and 40 thus manufactured can be decomposed in activated microorganisms at the composting conditions, namely, a temperature of 60 ° C and a humidity of 80%. It can be composted and can contribute greatly to environmental improvement by being fully biodegradable in nature.

In addition, the waterway block of the present invention can be economically and easily used ocher and stone powder bar, it can be more economically and easily form an environmentally friendly waterway block.

Hereinafter, the composition according to the present invention is described in more detail by the following examples. However, the present embodiment is only illustrative for the purpose of understanding and is not intended to limit the present invention.

<Example>

Example 1 Biodegradable Waterway Block Preparation of the Present Invention 1

45 parts by weight of biodegradable polylactic acid (SK Networks, EGP-100), 50 parts by weight of stone powder (youngwoo cam tack, talc, 1000 mesh) and 5 parts by weight of ocher (ocher cone, ocher powder, 300 mesh) After addition and sufficient mixing using a kneader, a pellet was manufactured by extruding the resin using a need-extruder having a screw having a diameter of 70 at a working temperature of 110 ° C.

Next, the obtained pellets were injected under the following conditions to prepare a channel block. The obtained channel block (sample) was obtained by using a universal testing machine to determine the mechanical properties of tensile strength, elongation.

division unit Temperature condition Cylinder temperature NH ℃ 170-190 ℃ H1 ℃ 175-195 ℃ H2 ℃ 175-195 ℃ H3 ℃ 175-195 ℃ H4 ℃ 160-180 ℃ H5 ℃ 150-170 ℃ Mold temperature Upper side ℃ 35-40 ℃ Lower side ℃ 35-40 ℃

Example  2: Preparation of biodegradable hydroblock of the present invention 2

40 parts by weight of biodegradable polylactic acid (SK Networks, EGP-100), 50 parts by weight of stone powder (youngwoo cam tack, talc, 1000 mesh) and 10 parts by weight of ocher (ocher cone, ocher powder, 300 mesh) After addition and sufficient mixing using a kneader, a pellet was manufactured by extruding the resin using a need-extruder having a screw having a diameter of 70 at a working temperature of 110 ° C.

Next, the obtained pellets were vacuum-dried and injected under the same conditions as in Example 1 to prepare a waterway block. The obtained water block (sample) was checked for mechanical properties of tensile strength and elongation rate using a universal testing machine.

Comparative Example 1 Preparation of Biodegradable Waterway Blocks

100 parts by weight of 60 parts by weight of biodegradable polylactic acid (SK Networks, EGP-100), 30 parts by weight of stone powder (youngwoo cam tack, talc, 1000 mesh) and 10 parts by weight of ocher (ocher cone, ocher powder, 300 mesh) After addition and sufficient mixing using a kneader, a pellet was prepared by extruding the resin using a need-extruder having a screw having a diameter of 70 at a working temperature of 110 ° C.

Next, the obtained pellets were vacuum-dried and injected under the same conditions as in Example 1 to prepare a waterway block. The obtained water block (sample) was checked for mechanical properties of tensile strength and elongation rate using a universal testing machine.

unit Example 1 Example 2 Comparative Example 1 Polylactic acid Parts by weight 45 40 60 Stone powder Parts by weight 50 50 30 Ocher powder Parts by weight 5 10 10 The tensile strength MPa 13.7 13.2 14.3 Elongation % 6.7 8.7 4.4

Experimental Example 1 Biodegradability Study of Biodegradable Waterway Blocks of the Present Invention

In order to examine the biodegradability of the sample prepared in Example 1, a 30 μm film was tested by weight reduction of the sample through soil embedding. After landfilling, a sample was taken and the foreign matters were removed from the sample with water and alcohol, and the biodegradation rate was measured by dividing the weight after landfilling by the weight before landfilling. At this time, the reclamation was performed to a depth of 30 cm that can be aerobic and anaerobic microorganism coexist in the nearby wild. The measurement results are as follows.

Example 1 (%) Example 2 (%) 0 days 0 0 3 months later 14 16 6 months later 21 20 9 months later 46 43 12 months later 65 63

According to the present invention, the protection net 200 is made of a biodegradable resin is good to be biodegraded after a certain period of time to be lost. For example, the protection net 200 may be made of the biodegradable polyester resin composition of the Republic of Korea Patent No. 10-0642289. Or in other cases, it can be made by twisting the natural fiber extracted from coconut into rope shape.

As described above, the present invention provides a method of protecting slopes using waterway blocks so that ground water or surface water during rainfall may be naturally and stably drained. The present invention also provides a biodegradable collecting block composition which is biodegraded and disappears in nature without concern of environmental pollution.

1 and 2 show a waterway block installed on a slope according to the present invention;

3 is a view showing a structure in which waterway blocks are assembled and installed;

Figure 4 is a view showing a process of slope protection construction on the slope according to the present invention.

Claims (10)

Y-shaped channel block formed with a channel in the form of a straight line, C-channel block formed with a channel in the form of a straight line, the length of which is shorter than that of the long channel block, and Y having a channel having three directions as a Y-shape as a whole. A slope protection method for protecting a slope using a channel block including a V-shaped connection block and a V-shaped connection block having a channel having two directions as a V-shape as a whole; (a) a slope forming process of forming a slope by filling or cutting; (b) with respect to the slope, the short date channel block is disposed substantially along the inclined direction of the slope, and the long date channel block is arranged to be inclined in both directions about both ends of the short date channel block. And, the short single channel block and the long linear channel block is connected through the Y-type connecting block and V-shaped block, the waterway block installation step of forming a honeycomb-like structure in which the hexagonal lattice shape as a whole; (c) greening the inside of the hexagonal lattice of the honeycomb-like structure and filling the earth and sand for the stuffed soil, spraying or planting seeds; (d) a slope protection method comprising a protective net installation step of covering the honeycomb structure with a protective net. The method of claim 1, Slope protection method characterized in that the long date-containing block, the short date channel block, the Y-type connecting block and the V-type connecting block is a U-shaped cross-section of the waterway space is formed. 35 to 55 wt% of the biodegradable resin, based on 100 wt% of the composition for biodegradable hydroblock; A composition for biodegradable waterway blocks in the form of pellets obtained by mixing and extruding 40 to 65% by weight of talc. The method of claim 3, Based on 100% by weight of the waterway block composition, a biodegradable waterway block composition further comprises 10% by weight or less of ocher powder or colorant. The method according to claim 3 or 4, The biodegradable resin is polylactic acid (PLA), poly (ε-caprolactone) (PCL), polybutylene succinate (PBS), polybutylene succinate adipate (PBSA), polybutylene adipate- A composition for biodegradable waterway blocks, which is a mixture of one resin or more than one resin selected from the group consisting of co-telephthalate (PBAT) and polyvinyl alcohol (PVA). The method according to claim 3 or 4, The biodegradable waterway block composition wherein the biodegradable resin is polylactic acid. A biodegradable waterway block prepared by injecting a composition for biodegradable waterway blocks in the form of pellets according to claim 3 or 4. The method of claim 1, The long date channel block, the short date channel block, Y-type linking block and V-type linking block is 35 to 55% by weight of biodegradable resin based on 100% by weight of the composition for biodegradable channel block; Slope protection method characterized in that the biodegradable waterway block prepared by injecting a composition for pellets biodegradable waterway block obtained by mixing and extruding 40 to 65% by weight of stone powder (talc). The method of claim 8, The biodegradable waterway block composition is a slope protection method, characterized in that the biodegradable waterway block composition further comprises 10% by weight or less based on 100% by weight of the composition for the waterway block. The method according to claim 8 or 9, The biodegradable resin is polylactic acid (PLA), poly (ε-caprolactone) (PCL), polybutylene succinate (PBS), polybutylene succinate- adipate (PBSA), polybutylene adipate -Slope protection method, characterized in that the resin or a mixture of more than one resin selected from the group consisting of co-telephthalate (PBAT) and polyvinyl alcohol (PVA).

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