KR101821553B1 - Afforestation Structure for Inclined Plane Using Water Absorbent Resin - Google Patents

Abstract

The present invention relates to an afforestation structure installed on a cutting area of a slope requiring afforestation, which uses a water absorbent resin to allow soil to retain more water to allow plants to use the water to grow. According to the present invention, the water absorbent resin absorbs and stores supplied water and then slowly drains the water to continuously supply water to plants. Since air gaps are formed between absorption and drain pipes and vegetation soil by expansion and contraction of a volume by absorption and drainage of the water absorbent resin or soil density of vegetation soil around absorption/drain pipes is lowered to improve air permeability of soil, an environment suitable for growth of plants can be maintained. Also, since the water absorbent resin is accommodated in a felt container to prevent a loss thereof, a drain passage is not blocked by the water absorbent resin, and absorption and drain pipes act as the drain passage in vegetation soil to prevent the vegetation soil attached to a slope from being carried away.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a water-

The present invention relates to a green structure to be installed on a slope cutter or the like which needs to be photographed, and moreover, the water absorbing resin is used to make the soil have more water, so that the plant can grow it using the water.

Generally, roads, mountains, rivers, complexes, and damages caused by cuts, embankments or natural disasters around the buildings require greening due to strengthening of ground and scenery. It is common practice to germinate seeds such as herbaceous trees and woody plants. When the slope of the slope is urgent, a method of installing a vegetation-based material after applying auxiliary supports such as a wire net is being carried out.

This greening method is a construction method that makes an artificial condition that a plant grows naturally by spraying a vegetated soil prepared with a good moisture-retaining ability and containing a large amount of nutrients on a soil cut surface, It stabilizes the surface of the target area and enables the plant community to be formed due to the germination of the plant seed and the growth of the plant.

However, the conventional slope-protected vegetation material has a weak adhesive force with the ground due to the lapse of time after the construction, and the vegetation-based material is dropped, resulting in loss of plants. Especially, in case of dry germination, And so on.

In case of steep slope depending on the slope of the site, the dry vegetation-based re-installation method using the high-pressure compressor is used for the vegetation-based material, but the soil has high hardness due to the drying of the vegetation-based material, The wet vegetation-based re-installation method of attaching the vegetation-based material mixed with water is used, since the voids in the vegetation-based material disappear during the mixing of the vegetation-based material and the water, Which adversely affects the germination of plants.

In addition, the nursery is supplied to the soil by livestock by-product or organic matter such as sewage sludge in order to secure the intelligence of the vegetation of the plant and to form the soil condition for plant growth. When the surface of the soil is hardened, the germination rate of the plant is low and the development is delayed. In the case of changing the soil environment while protecting the environment by improving and mixing industrial waste or municipal waste, The growth of plants is often inhibited and there is a problem that they flow down due to the weight of vegetation-based ashes after construction.

In order to solve such a problem, Korean Patent Registration No. 0765909 discloses a method in which a spontaneously decomposing plant fiber net is spread and adhered to a construction site where civil works have been completed, and then fixed with a fixing pin. Then, a vegetation-based soil composition (such as feces, soil, , Pulp sludge, purified water sediment, vegetable fiber, peat moss) and water are sprayed on the slope so that a vegetation-based soil composition having a high organic matter content can be firmly adhered to slopes.

Korean Patent Registration No. 1108002 discloses a method of forming a continuous fiber reinforced soil layer and a natural cotton net layer on which a long fiber is put on the ground and adding a vegetable base material such as cotton wool, paper sludge, loess, And the plant anchors were used to secure stable settlement of the vegetation-based material and prevention of fall-off due to external pressure.

However, the above-mentioned inventions have a problem in that the control of nutrients and moisture required for germination and growth of plants is not optimized because the vegetation material is firmly attached to the slope so that the vegetation material does not flow down.

Korean Patent Registration No. 1585373 discloses an invention in which a net member filled with short fibers is inserted into a perforation hole in a ground to achieve drainage and recording through the net member.

The present invention is characterized in that the net members filled with short fibers are connected to each other by a connecting member to fill the perforated holes in the ground, and seeds are laid on slopes near the perforation holes and mesh members at the entrance of the perforation holes. The staple fiber is fixed to the perforation hole of the ground while the staple fiber is absorbed and expanded so that the inflow water can be discharged through the space between the staple fibers or the space between the mesh member and the perforation hole, So that the inflow water can be smoothly discharged without being blocked.

However, when the perforation hole is formed perpendicular to the ground, the water flows smoothly. However, since the inflow water is not drained to the ground surface but is accumulated in the perforation hole and permeated into the ground, If the perforated holes are formed in the horizontal direction, the water absorbed in the net member may be discharged to the entrance of the perforation hole to supply moisture to the seed, The number of holes does not flow into the hole and the network member of the present invention can not perform its function.

In this way, the attached vegetation base material is firmly fixed to the ground, and water supplied by rainwater or the like is gradually drained without being drained temporarily so that it can be continuously supplied to seeds or planted plants. .

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an apparatus and a method for preventing water from being supplied to a site requiring greening such as slope cut- To provide a sloping greening structure.

In order to solve the problems described above, the present invention is characterized in that a supporting net 300 is installed on a ground of a slope 200, a plurality of inlet / outlet pipes 100 are fixedly coupled to the supporting net 300, The water intake pipe 100 is filled with the water absorbent resin 120 inside the cylinder 110 made of a nonwoven fabric and the inside of the cylinder 110 is filled with water at regular intervals in the longitudinal direction of the nonwoven cylinder 110 The plurality of water inlet and outlet pipes 100 are divided into a central tube 140 disposed along the up and down direction of the inclined surface 200 and a center tube 140 disposed at an acute angle to both sides of the center tube 140 And a plurality of branch pipes 150 branched and arranged in parallel in the same direction spaced apart from each other by a predetermined distance. The branch pipe 150 of the one side branch pipe 100 extends vertically upward from the center pipe 140 (100) adjacent to the one side water inlet pipe The branch pipe 150 of the side intake pipe 100 has an acute angle in the downward direction from the center pipe 140 and the one side water pipe 100 and the other side water pipe 100 intersect each other along the right and left directions of the slope 200 And the plurality of pipes 150 of the one side water discharge pipe 100 are arranged to enter the adjacent ones of the plurality of pipes 150 of the adjacent side water discharge pipe 100 by a predetermined distance, The water discharged from the branch pipe 150 of the one side water discharge pipe 100 flows down along the slope 200 by making the branch pipes 150 of the other side water discharge pipe 100 overlap each other in the vertical direction, Absorbing resin so as to be absorbed by the absorbent resin (150).

At this time, the water discharge pipe 100 has a height of 3 to 7 cm, and the vegetated soil 400 is preferably installed at a thickness of 8 to 15 cm from the ground of the inclined surface 200, It is preferred to include sludge and jute fibers from soil, seed, water treatment facilities.

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The present invention can continuously supply water to the plant by absorbing and storing the water supplied with the water absorbent resin and gradually draining the water, and by expanding and contracting the volume due to absorption and drainage of the water absorbent resin, And the soil density of the vegetation soil around the intake pipe is lowered to improve the air permeability of the soil, so that the environment suitable for plant growth can be maintained.

In addition, since the water absorbent resin is not contained in the nonwoven fabric and is not lost, there is no problem that the drainage path is clogged due to the water absorbent resin, and the drainage pipe serves as drainage in the vegetated soil so that the vegetated soil attached to the sloped surface is prevented from being lost.

FIG. 1 is a view showing the internal structure of a suction pipe 100 according to an embodiment of the present invention.
2 is a cross-sectional view showing a state in which the suction pipe 100 is installed on the slope 200. FIG.
3 is a plan view showing a state where adjacent branch pipes 150 of the left and right water discharge pipes 100 installed on the inclined surface 200 are arranged so as not to overlap each other in the vertical direction.
4 is a plan view showing a state where adjacent branch pipes 150 of the left and right water discharge pipes 100 installed on the inclined plane 200 are arranged so as to overlap each other in the vertical direction.

Generally, in the same land as flat land, it is easy for plants to grow. Even if left untouched by nature, the green land can be formed over time, but the surface of the slope such as the incision paper is moved by soil When the erosion phenomenon occurs and the erosion phenomenon is repeated, the soil on the slope is lost, and at the same time, there is a problem in stability and it is difficult to form natural greenery.

 As a method of preventing the erosion phenomenon of such slopes, it is possible to prevent rainfall, freezing / thawing and wind erosion by covering the surface with plants, and this planting method is most economical and permanent.

The growth of plants generally requires less movement of soil and soil, and stability is required. As the slope of the slope is lower, the soil layer becomes thinner as the slope becomes faster, so the soil becomes unstable and the atmosphere such as temperature, humidity, wind, Changes in conditions and changes in temperature and soil moisture have a great influence on plant growth, and plant growth on slopes is much worse than on plain ground.

In order to succeed in greening the slope, the growth environment of the plant is important. In particular, the vegetation-based material attached to the slope should not be lost by rainwater, and the water introduced into the vegetation-based material is gradually discharged, It is important to be able to keep it.

In order to achieve the above object, the present invention provides an inclined surface greening structure in which a water absorbent resin is accommodated in a barrel made of a nonwoven fabric and the nonwoven fabric bar is mounted on an inclined surface so as to be embedded in a soil composition for vegetation formation (vegetated soil).

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

FIG. 1 shows an internal structure of a suction pipe 100 according to an embodiment of the present invention. The nonwoven fabric pipe 110 is filled with an absorbent resin 120.

The nonwoven fabric tube 110 constituting the suction pipe 100 is made of a nonwoven fabric so that the absorbent resin 120 stored therein is prevented from being lost to rainwater or the like, It is preferable to use a polyester material which is high in strength and does not deteriorate in strength even when wetted with water, and has high durability, high chemical resistance and is not easily torn.

In order to prevent the water absorbent resin 120 from moving inside the nonwoven fabric bottle 110, a partition 130 may be provided for dividing the inside of the nonwoven fabric bottle 110 at regular intervals in the longitudinal direction of the nonwoven fabric bottle 110, The partition 130 separates the water absorbent resin 120 from the torn portion only in the case where the nonwoven fabric bottle 110 is torn by an external force and the remaining water absorbent resin 120 is stored in the nonwoven fabric container 110 Effect.

The absorbent resin 120 is a synthetic polymer material capable of absorbing water several tens to several hundred times its own weight and is also called a super absorbency material (SAM) or an absorbent gel material (AGM) Since it does not emit water easily, it has started to be put into practical use as a physiological tool. It is used in various materials such as sanitary articles such as diapers for children, soil repair agents for gardening, index materials for civil engineering, seedling sheets, Widely used.

The water absorbent resin (120) absorbs rainwater during rainfall to supply water to the soil during the dry season and improves the physical properties of the soil by repeating shrinkage and expansion to improve the drainage and permeability of the soil. Environment.

The nonwoven fabric container 110 may contain a fertilizer component such as nitrogen, phosphoric acid, and potassium in addition to the water absorbent resin 120. Such a fertilizer component is absorbed by the water absorbent resin 120 and then gradually discharged, .

The nonwoven fabric bottle 110 has a structure in which the end is closed to prevent the water absorbent resin 120 from being lost. The cross section of the nonwoven fabric bottle 110 is not limited to a shape such as a circle, triangle, quadrangle, pentagon, hexagon, plum, cocoon, It is preferable to have a circular cross section considering ease and economy.

2 is a sectional view of the intake pipe 100 constructed as described above on the inclined surface 200. The support network 300 is installed on the inclined surface 200 as shown in FIG. The vegetation soil 400 is installed so that the water discharge pipe 100 is fixed by the binding member and the water discharge pipe 100 is covered with the vegetation soil 400. The germination of the seed, the growth of the germinated plant, It is preferable that the vegetated soil 400 is installed at a thickness of 8 to 15 cm from the ground of the inclined surface 200. Considering this, the inlet pipe 100 has a height (diameter) of 3 to 7 cm, .

The supporting network 300 may be formed of a wire net considering the economical efficiency, or may be formed of a net of a plastic material or a cellulose material so as to fix the nonwoven fabric tub 110 for a long period of time without corrosion, And then a mesh of biodegradable material so that it is decomposed spontaneously.

The vegetated soil 400 may further include soil and seed, and may further include a fibrous reinforcement material for preventing the organic waste such as purified water sludge, sewage sludge, and / or the vegetated soil 400 from being lost in the water treatment facility , And it is preferable that the soil has a large particle size and good drainage and a large amount of pores inside the soil, so that a highly breathable sheet is preferred.

The sludge organic waste is a sediment of suspended suspension generated in a water treatment facility or a wastewater treatment facility. The sludge organic waste is high in organic content and excellent in water retention, maintains a proper moisture for seed germination, Nutrients and trace elements supply nutrients and minerals necessary for plant growth and promote the development of plant rootstock so that plant growth can be normalized even in the wet season.

The fibrous reinforcement is a natural fiber made from plants and mainly composed of cellulose. When water is supplied as a hydrophilic fiber having a rough surface and hydroxyl group (-OH), a three-dimensional structure is formed, The adhesive strength of the vegetation soil 400 is improved, the water retention capacity is increased, and the adhesive strength, crack suppression, durability and the like of the vegetation soil 400 are improved.

Hemp fibers are preferred as the fiber reinforcement, and hemp-type jute fibers obtained from the inner skin of jute are more preferable. Jute fibers have good deformability, excellent dispersibility upon contact with water, and rough surface characteristics And it is advantageous in that the binding force with soil is high and the cost is lower than that of synthetic fiber.

When water such as rainwater or the like is introduced into the inclined surface recording structure of the present invention, water is absorbed by the vegetated soil 400 to be used for seed or germinated plants, and part of the water is absorbed by the water discharge pipe 100) is absorbed and stored in the water absorbent resin (120) after wetting the nonwoven fabric bottle (110).

When the moisture content of the vegetation soil 400 is lowered at the time of drying, when the moisture of the nonwoven fabric tub 110 is moved to the vegetated soil 400 and the humidity of the environment surrounding the water absorbent resin 120 is lowered, The stored water is gradually discharged to the vegetation soil 400 via the nonwoven fabric tub 110 so that the seeds planted in the vegetation soil 400 or the germinated plants are continuously supplied with water.

In addition, the water absorbent resin 120 expands and contracts in volume as it absorbs and discharges water, which causes the nonwoven fabric bottle 110 to expand and contract, and when the nonwoven fabric bottle 110 expands, the vegetated soil 400 is pushed A space is formed between the nonwoven fabric tub 110 and the vegetation soil 400 at the time of shrinkage or the soil around the nonwoven fabric tub 110 is collapsed due to the weight of the vegetation soil 400, The air permeability is improved.

At this time, the partition 130 of the nonwoven fabric bottle 110 transmits the expansion / contraction of the water absorbent resin 120 to the radially outward direction of the absorption water pipe 100, not in the longitudinal direction thereof, The water absorbent resin 120 of the water inlet and drain pipe 100 installed diagonally due to the expansion and contraction of the water absorbent resin 120 and the nonwoven fabric bottle 110 acts to physically change the vegetated soil 400, ) From the inside.

When the water absorbent resin 120 is mixed with the vegetated soil 400 without being accommodated in the nonwoven fabric bottle 110 as in the present invention, the water absorbent resin 120, which is lost or lost in rainwater, However, if the water absorbent resin 120 is accommodated in the nonwoven fabric container 110 as in the present invention, there is no possibility of loss of the water absorbent resin, and the problem of blocking the drain can be solved.

The water inlet pipe 100 of the present invention can serve not only to continuously supply water to the seed or the plant but also to serve as a water passage for the water depending on the arrangement on the slope 200. For this purpose, It is preferable to dispose the intake pipe 100 as shown in FIG.

3 and 4 show a plan view in which the intake pipe 100 is disposed and a center pipe 140 is disposed along the vertical direction of the inclined surface 200. The center pipe 140 The branch pipes 150 connected to the central pipe 140 are arranged repeatedly in parallel in the same direction so as to form an acute angle with the inner pipe 140, .

The surplus water not absorbed by the water absorbent resin 120 is absorbed by the water absorbing resin 120 while the water flowing down the inclined surface 200 along the water absorbing water pipe 100 is absorbed by the water absorbent resin 120, The water discharge pipe 100 serves as a drain in the vegetated soil 400 and the vegetated soil attached to the inclined surface 200 is discharged to the outside of the water discharge pipe 100. [ (400) is prevented from flowing down.

3 and 4 show one embodiment in which the branch pipe 150 of the adjacent intake pipe 100 is alternately repeated in the downward direction and the upward direction. However, according to the embodiment of the present invention, When the branch pipe 150 is disposed in a downward direction, the water absorbed in the vegetated soil 400 moves along the branch pipe 140 from the center pipe 140 to the inclined surface The water absorbed in the vegetated soil 400 flows from the branch pipe 150 to the center pipe 140 when the branch pipe 150 is disposed in the upward direction. The soil pipe 150 may be formed in accordance with the climatic environment, the soil quality, the inclination of the inclined surface, and the type of the plant being planted, since the possibility of being discharged on the lowermost part of the central pipe 140 of the inlet / Or only in the upward direction, or may be arranged in the branch pipe 150 of the adjacent intake pipe 100, So that the arrangement can be repeated up and down.

3, the branch tubes 150 of adjacent intake and discharge pipes 100 are arranged so that they do not overlap with each other in the vertical direction. In FIG. 4, the branch tubes 150 of the adjacent intake and discharge pipes 100 are arranged vertically In the case of FIG. 3, the water absorbed and discharged into one set of the inlet and outlet pipes 100 is not absorbed by the other set of the inlet and outlet pipes 100, but in the case of FIG. 4, The water discharged from the water supply pipe 100 can be absorbed by the other set of the water discharge pipe 100 so that water can be used more efficiently and it can be selected according to the condition of the recording destination as described above.

In addition, the distance between the branch pipes 150 connected to one central pipe 140 or the distance between adjacent branch pipes 150 of the central pipe 140 can be appropriately adjusted according to conditions of the recording destination.

Hereinafter, the present invention will be described in more detail with reference to the following examples, comparative examples and test examples.

It is to be understood, however, that the invention is not to be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Will be apparent to those skilled in the art to which the present invention pertains.

≪ Example 1 >

A nonwoven fabric made of polyethyleneterephthalate resin was made into a cylindrical shape having a diameter of 5 cm and then a partition 130 was installed by covering the inner space with the nonwoven fabric material at intervals of 20 cm in the longitudinal direction.

The inside of the nonwoven fabric cylinder was filled with a superabsorbent resin 120 (SAP, Jejun, Korea), and the gap of the nonwoven fabric was sealed to prepare an absorptive water pipe 100.

(20: 2: 1) by mixing the wastewater sludge collected from the bottom of the wastewater treatment facility and natural cellulosic fibers (Zicon fiber, NICON MATERIAL, Korea) and mixing them with seeds (mixed woody plants and herbaceous mixed seeds) 400) were prepared.

A wire mesh (# 10.75x75) was laid on a slope slope (average slope of 40 °) made of a moderate rock and fixed to the ground with a fixing pin. Then, the prepared drainage pipe 100 was installed as shown in FIG. 3 The gap between the branch pipes 150 connected to one central pipe 140 of the inlet pipe 100 is 3 m and the center pipe 140 of the adjacent inlet pipe 100 ), And the distance between the tip of the branch pipe 150 of the adjacent suction pipe 100 was 1 m.

The vegetated soil 400 was dry-installed at a height of 10 cm from the ground by using a high-pressure compressor on the discharge pipe 100 installed as described above.

≪ Example 2 >

In the first embodiment, a green structure was constructed in the same manner as in Example 1, except that the water inlet pipe 100 was installed in the form as shown in FIG.

≪ Example 3 >

In the first embodiment, a green structure was constructed in the same manner as in Example 1, except that all the branch pipes 150 of the inlet / outlet pipe 100 were directed downward.

<Comparative Example>

Except that the superabsorbent resin 120 was not filled in the nonwoven fabric bottle 110 but mixed in the vegetated soil 400 in the same manner as in Example 1 except that the amount of the superabsorbent resin 120 was 20 mass% And the green structure was applied.

<Test example> Plant growth test

Table 1 shows the number of seedlings germinating and growing normally after five consecutive months of water supply to the green structure constructed as in Examples 1 to 3 and Comparative Example.

Seed seeds were mixed with 100 lips for each group and plant species after pretreatment with chemicals.

Plant growth test result Normal growth number Example 1 Example 2 Example 3 Comparative Example Insect 81 85 78 72 American 78 81 77 65 A stupid person 73 77 74 68 Flower irises 75 79 73 70 Necklace 73 82 75 71 Kun 72 75 70 64 Nasturtium 68 70 65 66 Country 70 73 66 67 Michaelmas daisy 65 72 65 61 Sari 35 38 34 33 Silk tree 25 26 26 21 Average 65.0 68.9 63.9 59.8

As shown in Table 1, the survival rate of the woody plants was lower than that of the herbaceous plants, and the branch pipes 150 of the adjacent intake pipe 100 were overlapped with each other in the vertical direction as shown in FIG. 4 As shown in FIG. 3, Example 1 in which the branch tubes 150 were installed so as not to overlap each other was superior in the next.

In the case of Example 2, the growth of the plants is caused by the supply of water to the soil, the maximum amount of the supplied water and the utilization of the plants for a long period of time. The water discharged from the end of the pipe 150 flows along the inclined surface 200 and is absorbed by the water absorbent resin 120 filled in the branch pipe 150 of the adjacent water pipe 100, Is estimated to have been caused by a further increase.

In the case of Example 3 in which all the branch pipes 150 of the water discharge pipe 100 are directed downward, the loss of water is larger than that of Example 1, which is considered to be the cause of the decrease in the amount of water available to the plant In the comparative example, the water absorbent resin (120) was gradually lost to rainwater, and the water holding capacity of the soil was decreased, resulting in the lowest growth of the plant and the loss of some vegetation soil.

100: absorption pipe, 110: nonwoven bottle, 120: absorbent resin, 130: partition, 140: center tube, 150: branch pipe, 200: slope, 300: supporting network,

Claims (7)

A structure in which a vegetation soil (400) is installed so that a supporting net (300) is installed on a ground of a slope (200) and a plurality of water discharge pipes (100) as,
The absorptive water pipe 100 is formed with a nonwoven fabric partition 130 in which a water absorbent resin 120 is filled in a barrel 110 made of a nonwoven fabric and the inside is divided at regular intervals in the longitudinal direction of the nonwoven barrel 110,
The plurality of water discharge pipes 100 are divided into a central tube 140 disposed along the up and down direction of the inclined surface 200 and a central tube 140 branched at an acute angle to both sides from the central tube 140, A plurality of branch tubes (150) arranged,
The branch pipe 150 of the one side branch pipe 100 has an acute angle upward from the center pipe 140 and the branch pipe 150 of the other side branch pipe 100 adjacent to the side branch pipe 100 is connected to the center pipe 140 The one side water drainage pipe 100 and the other side water drainage pipe 100 are repeatedly arranged repeatedly along the right and left direction of the slope 200,
The plurality of pipes 150 of the one side water inlet pipe 100 are arranged to enter the adjacent ones of the plurality of pipes 150 of the adjacent side inlet water pipe 100 by a predetermined distance, The water discharged from the branch pipe 150 of the one branch pipe 100 flows down along the slope 200 and flows into the branch pipe 150 of the adjacent branch pipe 100 Absorbing resin so that the absorbent resin is absorbed. delete The method according to claim 1,
Wherein the water discharge pipe (100) has a height of 3 to 7 cm and the vegetated soil (400) is installed at a thickness of 8 to 15 cm from the ground of the inclined surface (200). The method according to claim 1,
Wherein the vegetated soil (400) comprises sludge and jute fibers generated from soil, seed, water treatment facilities, and an inclined surface recording structure using the water absorbent resin. delete delete delete

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