KR101574566B1 - Method for Reinforcing Slope for Vegetation - Google Patents

Abstract

The present invention relates to a vegetation slope reinforcement method, and more particularly, to a method of reinforcing a vegetation slope, comprising: a foundation ground construction step of sanding a foundation ground by cutting a part of a slope; A concrete construction step of forming a concrete layer; A nonwoven fabric covering step of covering the long fiber nonwoven fabric; A first ground fire construction stage where the ground fire is stacked up to a predetermined height; A geogrid construction phase; A grid reinforcing frame mounting a reinforcing net made of PVC on the entire surface of the hot-dip galvanized frame and installing the lower part of the grid reinforcement frame so as to be overlapped with the one side of the geogrid; A reinforcing bar anchor installation step of fixing the other side of the geogrid to a reinforcing steel anchor; A step of installing a plurality of piercing pipes facing the slopes; A second ground fire construction step in which the perimeter of the pipe is filled with fire; And a mixture of 70 to 90% by weight of gravel and 10 to 30% by weight of zeolite from the grid reinforcing frame.
Since the present invention does not contaminate the soil by using a PVC coated net instead of the EX metal, the plants which are rooted on the slope are not damaged and are eco-friendly. The one end of the geogrid is connected to the grid reinforcement frame and the other end is fixed to the reinforcing anchor Therefore, it is possible to prevent the secondary damage caused by the earth pressure when the torrential rain is heavy, and it is possible to reduce the cost by using the oil pipe which is less expensive than the drainage block.

Description

{Method for Reinforcing Slope for Vegetation}

The present invention relates to a slope reinforcement method, and more particularly, to a vegetation slope reinforcement method.

Generally, when a mountain slope or part of a hill is damaged by a natural disaster, or when a slope is cut to install a facility such as a road or a railroad, an inclined surface is prepared and reinforced to secure people's safety.

Therefore, a newly proposed Soil Castle (Soil Castle) has been proposed as a method for simultaneously achieving stable and greening of a clayey slope. For reference, Patent Document 1 discloses a method of reinforcing a slope using an inclined plane reinforcing structure .

However, conventional methods for reinforcing inclined surfaces use a plurality of reinforcing bars or a mesh formed of EX metal. Therefore, corrosion of the reinforcing bars or EX metal is a concern, and plants planted on the slopes for preventing the degradation of soil There was a problem of being damaged due to contaminants generated from reinforcing bars or EX metal.

Also, to prevent the collapse of the soil, the pile was used to fix the bottom of the reinforcing bars. However, it is still difficult to counter the soil pressure of natural disasters such as heavy rainfall.

KR 10-2010-0027693 A

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 a method for reinforcing a slope reinforced concrete slab, which comprises hot-dip galvanizing without contacting the slab so as not to contaminate the slab, It is a method of reinforcing the slope of the vegetation which is beneficial for vegetation by mixing zeolite with the soil which uses the netshell mesh.

Another object of the present invention is to provide a vegetation slope reinforcement method in which one side of a geogrid is connected to a grid reinforcement frame and the other side is fixed with a reinforcement anchor in order to prevent the collapse of the gravel due to the earth pressure at the time of concentrated rain.

It is another object of the present invention to provide a vegetation slope reinforcement method for reducing cost by providing a pipe instead of a drainage block.

In order to accomplish the object of the present invention, the method of reinforcing a vegetated slope according to the present invention comprises: a foundation grounding step of cutting a part of an inclined surface to cut a foundation ground by flattening a bottom; A concrete construction step in which the concrete is layered with a predetermined thickness, the mortar mixed with water is mixed into the cement at a predetermined ratio, and the mortar mixed with water is injected into the rubble to form a concrete layer in which the mortar penetrates; A nonwoven fabric applying step of covering a long fiber nonwoven fabric on the upper surface of the concrete layer; A first ground fire fighting step in which a ground fire is piled up on a top surface of the long fibrous nonwoven fabric by a predetermined height; A geogrid construction step of covering the upper surface of the ground fire with a geogrid; A lattice reinforcement frame made of hot-dip galvanized (Zn) is formed on the front of a lattice-shaped lattice structure formed by a plurality of reinforcing bars bent parallel to each other by a predetermined angle and a plurality of reinforcing bars formed parallel to each other, A grid reinforcing frame provided with a mesh net and a lower portion of the grid reinforcement frame overlapped with one side of the geogrid; A reinforcing bar anchor installation step of fixing the other side of the geogrid to a reinforcing steel anchor; A step of installing a plurality of holes on the upper surface of the grid reinforcing frame and the upper surface of the geogrid so as to face the slopes; A second ground fire construction step in which the perimeter of the pipe is filled with fire; And a mixture of 70 to 90% by weight of gravel and 10 to 30% by weight of zeolite at a height of 20 to 30 cm from the grid reinforcing frame; A second soil embankment step in which a mixture of 70 to 90% by weight of gravel and 10 to 30% by weight of zeolite at a height of 20 to 30 cm after the first soil embankment is re-accumulated, And the second soil-filled soil step is repeatedly performed one or more times in order.

In the method for reinforcing a vegetated slope in accordance with the present invention, the grid reinforcement frame may be manufactured to be 40 to 60 cm in the grid reinforcement frame installation step.

In the method of reinforcing a vegetated slope according to the present invention, in the step of installing the pipe, the pipe is installed once during three times from the concrete construction step to the second soil-filled soil step.

Since the present invention does not contaminate the soil by using a PVC coated net instead of the EX metal, the plants which are rooted on the slope are not damaged and are eco-friendly. The one end of the geogrid is connected to the grid reinforcement frame and the other end is fixed to the reinforcing anchor Therefore, it is possible to prevent the secondary damage caused by the earth pressure when the torrential rain is heavy, and it is possible to reduce the cost by using the oil pipe which is less expensive than the drainage block.

1 is a block diagram showing a vegetation slope reinforcement method according to the present invention;
2 is a longitudinal sectional view of an inclined surface reinforced by an inclined surface according to the present invention.
3 is a cross-sectional view illustrating one cycle of the present invention.
4 is a perspective view of a lattice reinforcement frame used in the present invention.
Fig. 5 is a front view showing a state in which a rhombic network is installed in a lattice reinforcement frame used in the present invention. Fig.

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

2 to 5, the present invention is characterized in that the foundation foundation 11 and the concrete layer 12, the long fibrous nonwoven fabric 13, the first foundation fire 14, the lattice reinforcement frame 20, the geogrid 23, A porosity pipe 26, a second ground fire 27, and gravel.

The concrete layer 12 is formed by cutting a part of the inclined surface 10 and laying the ground on the upper surface of the ground base 11 having a flat bottom so as to have a predetermined thickness and mixing the sand with the cement at a predetermined ratio, And a concrete layer 12 into which the mortar is infiltrated by being injected between the rubble.

The long fibrous nonwoven fabric 13 is provided on the upper surface of the concrete layer 12.

The first ground fillet 14 is piled up by a predetermined height on the upper surface of the long fibrous nonwoven fabric 13.

The lattice reinforcement frame 20 is composed of a lattice frame 21 and a transverse frame 21.

The shovel (21) is bent by a predetermined angle and a plurality of reinforcing bars are formed in parallel.

The transverse frame 22 is formed in parallel with a plurality of reinforcing bars crossing the longitudinal frame 21 and is formed in a lattice form with the longitudinal frame 21.

 The main frame 21 and the cross frame 22 are plated with molten zinc and are installed at a height of 40 to 60 cm on the upper surface of the first ground support frame and have a synthetic mesh net 24 made of PVC.

One side of the geogrid 23 overlaps with the lower part of the lattice reinforcement frame 20 and is installed on the upper surface of the ground support fire 14 and a reinforcing anchor 25 is installed and fixed to the other side.

The perforated pipe 26 is installed on the upper surface of the lower part of the grid reinforcing frame 20 and the upper surface of the geogrid 23 so as to face the inclined surface.

And the second ground fillet 27 is filled around the perforated pipe 26.

A mixture of 70 to 90% by weight of the gypsum and 10 to 30% by weight of the zeolite is formed in the upper part of the second reinforcing frame 20 inside the grid reinforcement frame 20 at a height of 20 to 30 cm, 90% by weight and 10 to 30% by weight of zeolite is mixed with the mixture at a height of 20 to 30 cm.

The slope of the vegetation slope structure constructed as described above is reinforced by the following method.

Referring to FIGS. 1 and 2, the present invention mainly includes a foundation ground construction step S10, a grid reinforcement frame construction step S20, and a soil embankment construction step S30, and the above steps are repeatedly performed several times in succession .

2 is a longitudinal section of an inclined surface having an inclination of 1: 0.3. However, the present invention is not limited to the inclined surface having a specific inclination but can be applied to various inclined surfaces.

FIG. 3 is a cross-sectional view showing one cycle of the present invention. Referring to FIG. 3, in the foundation ground construction step S10, a part of an inclined surface that is damaged or needs to be cut is firstly cut to flatten the floor.

Next, in the concrete construction step (S11), lumber is stacked to a predetermined thickness in a desired area, sand is mixed with cement at a predetermined ratio, and mortar kneaded in water is injected between the rubble to form a concrete layer 12).

Next, in the nonwoven fabric construction step (S12), the long fiber nonwoven fabric (13) is covered on the upper surface of the concrete layer (12).

The long fibers of the long fibrous nonwoven fabric 13 are long filaments which are not formed by spinning and are also called filaments and are installed over the entire surface of the concrete layer 12. This absorbs the groundwater and infiltration water to prevent the occurrence of tussle in the ground and discharges the absorbed moisture to the side of the slope 10 to supply water required for the growth of the plant, The long fiber having a tensile strength of about 4 tons or more per m < 2 > plays a very important role in strengthening the strength of the structure and stabilizing the slope surface by the strong tensile force of the structure

Next, in the first stage of the ground fire fighting step (S13), the ground fire 14 is accumulated on the upper surface of the long fibrous nonwoven fabric 13 by a predetermined height.

The lattice reinforcement frame construction step S20 includes a geogrid construction step S21, a grid reinforcement frame installation step S22, a reinforcing bar anchor installation step S23, a pipe installation step S24, a second ground support fire installation step S25, .

4, the lattice reinforcement frame construction step S20 includes a lattice frame 21 in which a plurality of reinforcing bars bent in a predetermined angle are formed in parallel with each other, and a transverse lattice structure 21 in which a plurality of reinforcing bars crossing the lattice frame 21 are formed in parallel 22 are formed in a lattice form are installed on the foundation foundation 11 so as to have a height of 40 to 50 cm from the foundation foundation 11.

The provision of the grid reinforcement frame 20 allows the walls to be kept free of warping when the compaction of the embankment is finished, allowing the vegetation or supergene trees to be planted on the slope, allowing the roots to sink down, and the slope of the vegetation slope, It maintains the wall until it is settled by natural compaction.

The lattice reinforcement frame 20 can be completed by using a variety of coupling means (for example, a binding line or the like) to meet the lattice reinforcement frame 21 and the transverse frame 22 at right angles to each other, It is preferable to spot-weld the portions where the transverse frames 22 are in contact with each other. Also, although not shown in the drawing, it is also possible to fix the upper part of the front surface of the lattice reinforcement frame 20 and the rear end of the lower part of the lattice reinforcement frame 20 using separate hooks (not shown).

At this time, it is preferable that the completed grid reinforcing frame 20 is plated with molten zinc (Zn).

The molten zinc (Zn) plating is performed as follows.

First, a degreasing and cleaning process is performed in which a surface is polished by using Emery Paper # 100 to 400 on the surface of a steel material such as a reinforcing bar.

Next, the pickled steel is immersed in 10 to 15% hydrochloric acid (HCl) for 10 minutes to remove the oxide scale.

Thereafter, the steel having the oxidized scale removed is immersed in an aqueous flux (for example, a mixture of NH ₄ Cl and ZnCl ₂ in a molar ratio of 3: 1) at 80 ± 5 ° C. for 3 to 5 minutes to remove the iron salt And performs a flux treatment process.

Then, the flux-treated steel is immersed in molten zinc (Zn) at 450 ± 10 ° C for 10 to 15 minutes.

Finally, the steel immersed in molten zinc (Zn) is taken out and washed with water to remove the surface post-treatment components and cool down.

On the other hand, the shuttle 21 and the transverse frame 22 of the lattice reinforcement frame 20 may be subjected to a bioceramic coating that helps plants on slopes.

The bioceramics is prepared by spraying a composition containing 10 to 30% by weight of a bioceramics powder and 70 to 90% by weight of an adhesive directly onto a squeezing frame 21 and a transverse frame 22 of the lattice reinforcement frame 20 by a spray gun Or the lattice-reinforcing frame 20 may be impregnated into a liquid or colloid-state bioceramics, and the bioceramics may be coated on the lattice-reinforcing frame 20 by various other methods , The composition of the above-mentioned bioceramics is not limited to any one, and it can be used as various products on the market.

In the concrete layer 12, toxic components such as radon and formaldehyde are released. The bio ceramics are effective for vegetation because they block the release of harmful components and neutralize strong alkaline cement.

In the geogrid construction step S21, the upper surface of the ground cover 14 is covered with the geogrid 23.

The geogrid 23 is formed as a lattice network, and the gravel filled in the lattice network exhibits a kind of an anchor action to increase the lateral resistance against an operating load. Also, since the material of the geogrid is not a corrosive metallic material, it is also good in durability.

Referring to FIG. 5, in step S22 of installing the lattice reinforcement frame 20, a rhombic net 24 made of PVC is installed on the front surface (i.e., an inclined surface) of the lattice reinforcement frame 20, And the lower portion is overlapped with and connected to a part of one side of the geogrid 23.

It is also possible to fix the reinforcing anchor 25 to the overlapping portions of the grid reinforcing frame 20 and the geogrid 23 to increase the lateral resistance against the operating load.

In the present invention, the diaphragm 24 is made of a PVC material, but not limited thereto, and various materials such as polyethylene (PE) and polypropylene (PP) can be used.

Next, in the step of installing the reinforcing bar anchor (S23), the other side of the geogrid 23 is fixed with the reinforcing anchor 25.

A plurality of pipe tubes 26 are installed on the upper surface of the lower part of the grid reinforcing frame 20 and the upper surface of the geogrid 23 in a slanting direction.

The perforated pipe (26) prevents the outflow of the soil and the weakening of the ground due to the ground water and the infiltrating water by discharging infiltration water and ground water which are permeated into the ground during rainy or flood into the slope side, It is possible to prevent the collapse of the vehicle. It is a matter of course that the perforated pipe 26 is wrapped around the perforated pipe 26 with a nonwoven fabric so that other substances other than water can not be introduced into the pipe when the perforated pipe 26 is installed.

Thereafter, in the second ground fire construction step S25, the perimeter of the perforated pipe 26 is filled with the fire 27 on the ground.

The first and second ground fire fighting pits 14 and 27 are laid out at a height equal to or higher than the height of the pipe in accordance with the blending ratio of the useful soil and solid fire in the site where the pipe 26 is installed. The cement is mixed with the cement as a standard at a ratio of 5 to 15 parts by weight or the mixture of the cement-based hardener with the pH buffer and the slow-acting fertilizer added at a ratio of 10 to 30 parts by weight based on 100 parts by weight of the gypsum, The soil is sandwiched by the height of the lattice reinforcement frame 20 from the upper surface of the drainage layer, and the compaction is performed. It is used to prevent the subsidence and erosion of the ground by strengthening the layer by using fire for every predetermined height, and to increase the strength of the slope. When the cement is mixed with the gypsum to form mixed gypsum to form a reinforcing layer by compaction of the mixed gypsum, the lime, silica, alumina, iron oxide And the like react with the water of the permeating water flowing into the reinforcing layer to produce a substance acting as a binder and a roadbed stabilizer of the gravel so as to further reinforce the strength of the inclined surface by the reinforcing layer without solidifying the layer itself .

Then, a soil embankment soil step S30 consisting of a first soil embedding soil step S31 and a second soil embedding soil step S32 is performed.

The first soil embankment soak step S31 accumulates the soil to a height of 20 to 30 cm (preferably 25 cm) from the lattice reinforcement frame 20.

After the first soil embankment step S31, the second soil-soaked soil step S32 accumulates the soil material at a height of 20 to 30 cm (preferably 25 cm).

It is preferable that the embankment formed in the first soil embankment step S31 and the second soil embankment step S32 is a pure embankment in which 80 to 90% by weight of soil and 10 to 20% by weight of zeolite are mixed.

The zeolite has the characteristics of increasing the ion exchange capacity of the soil, improving the bending force (the force that enables the fungus to persist), and adsorbing gas or moisture, thereby improving the soil, water quality, , Water purification and deodorizing effect), it is beneficial for the vegetation of the plants growing on the slope by adsorbing the cement of the foundation ground 11 and the toxic substances coming out of the lattice reinforcement frame 20.

It is preferable that the present invention is repeatedly performed one or more times sequentially from the concrete construction step S11 to the second soil embankment step S32 after the foundation foundation 11 is first provided according to the height of the slope 10 However, it is preferable that the perforated pipe 26 is installed once (that is, every 1.5 m) when the concrete is repeated three times from the concrete construction step S11 to the second soil embankment step S32.

It is preferable that the present invention is repeatedly performed one or more times sequentially from the concrete construction step S11 to the second soil embankment step S32 after the foundation foundation 11 is first provided according to the height of the slope 10 However, it is preferable that the perforated pipe 26 is installed once every three times (installed every 1.5 m).

The present invention is not limited to the above-described embodiment, but may be applied to a method of reinforcing a vegetated slope according to the present invention without departing from the gist of the present invention, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

10: slope 11: foundation foundation
12: concrete layer 13: long fiber nonwoven fabric
14: Ground fire 20: Grid reinforcement frame
21: Shack 22: Crossing
23: Geogrid 24
25: reinforcing anchor 26:
27: Ground fire

Claims (3)

A ground foundation step (S10) of cutting a part of the slope (10) so as to flatten the bottom so as to consolidate the foundation foundation (11);
A concrete constructing step (S11) of constructing a concrete layer (12) in which mortar is poured in a predetermined thickness, sand mixed with cement at a predetermined ratio, and mortar mixed with water is injected into the rubble to form a concrete layer (12)
A nonwoven fabric applying step (S12) of covering the long fiber nonwoven fabric (13) on the upper surface of the concrete layer (12);
A first ground fire fighting step (S13) in which a ground fire (14) is piled up by a predetermined height on the upper surface of the long fibrous nonwoven fabric (13);
A geogrid construction step (S21) of covering the upper surface of the ground fire (14) with the geogrid (23);
(21) formed by bending a predetermined angle and forming a plurality of reinforcing bars parallel to each other and a transverse frame (22) having a plurality of reinforcing bars formed parallel to each other across the frame (21) A grid reinforcing frame 24 is installed on the front surface of the plated grid reinforcing frame 20 and a PVC netting net 24 is installed on the front of the grid reinforcing frame 20 so that the lower part of the grid reinforcing frame 20 is overlapped with the one side of the geogrid 23, Step S22;
A reinforcing steel anchor installation step S23 for fixing the other side of the geogrid 23 with the reinforcing steel anchor 25;
A step (S24) of installing a plurality of holes (26) on the upper surface of the lower part of the grid reinforcing frame (20) and the upper surface of the geogrid (23) so as to face the slopes;
A second ground fire construction step (S25) in which the perimeter of the perforated pipe (26) is filled with the fire (27);
A first soil embankment step (S31) for accumulating a mixture of 70 to 90% by weight of gravel and 10 to 30% by weight of zeolite at a height of 20 to 30 cm from the grid reinforcing frame (20);
A second soil embankment step (S32) for accumulating a mixture of 70 to 90% by weight of gravel and 10 to 30% by weight of zeolite at a height of 20 to 30 cm after the first soil embankment step (S31);
Wherein the step of repeating the step of repeating the vegetation inclined surface is performed one or more times from the concrete construction step (S11) to the second soil embankment step (S32). The method according to claim 1, wherein in the step (S24) of installing the perforated pipe, the perforated pipe (26) is installed once during three times of the concrete construction step (S11) Of the vegetation slope. delete

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