KR101118121B1 - Artificial turf foundation work of a nature reconstruct type - Google Patents

Abstract

PURPOSE: A construction method for the foundation of naturally recoverable artificial turf is provided to reduce construction time and costs by reusing existing earth and soil. CONSTITUTION: A construction method for the foundation of naturally recoverable artificial turf is as follows. Existing soil is plowed up in a specific depth(301). A hardening body is formed by mixing cement or/and loess mortar with a hardener. The formed hardening body is spread on the existing soil(302). A hardened layer is formed by sprinkling water on the existing soil and accumulating soil(303). Artificial turf is installed on the formed hardened layer(305).

Description

Artificial turf foundation work of a nature reconstruct type

The present invention relates to artificial turf ground-based construction, and more specifically, to remove the soil of the existing ground using a soil hardener to form a foundation layer for artificial turf construction as it is newly to enable a natural restoration The proposed natural restoration artificial turf based construction method.

Typically, artificial turf is used to provide a beautiful view as well as physical protection of people exercising in sports-related stadiums, such as a baseball field, soccer field or golf practice field.

In recent years, artificial turf playgrounds have begun to be built in schools in connection with the school playground diversification project, which is part of the government's education policy.

Such artificial turf ground is made of asphalt or concrete pavement after finishing and finishing of mortar, gravel, and crushed stone used for paving roads and playgrounds, and construct artificial turf with filler on it.

Meanwhile, as interest in the environment has increased, the interest in artificial turf ground-based construction has also increased. An example of the conventional artificial grass-based method is briefly shown in Figures 1a to 2b.

Figure 1a is a flow chart showing a conventional concrete base method, Figure 1b is a cross-sectional view showing the artificial turf structure constructed in accordance with the method of Figure 1a.

In the conventional concrete-based construction method shown in Figure 1a, first, the excavation work using a fork lane or the like (step 101). Digging work is to dig up the ground to a certain depth, remove the existing soil and compact it. Spreading the mixed aggregate on a flat chopped base to form an auxiliary base layer (step 102). At this time, the auxiliary base layer is formed into a 150mm thickness by laying a large gravel of 40mm size and compacting. The concrete is poured on the auxiliary base formed in this way, and then surface trimmed to form a concrete base (step 103). At this time, the concrete base layer is formed to a thickness of 150mm. When the concrete foundation work is completed, the artificial turf is constructed to have a thickness of approximately 55 mm thereon (step 104).

Referring to Figure 1b, artificial turf structure according to the concrete-based method of Figure 1a is formed of the auxiliary base layer 11 of the mixed aggregate after the removal of the existing soil, the auxiliary base layer 11 to block the moisture rising through the floor and PE film 12 is laid to protect the floor concrete. When PE is placed directly on the soil, the PE film 12 absorbs the moisture contained in the concrete and reduces the strength of the concrete due to lack of moisture. Pour. In the middle of the concrete base 13, a wire mesh 14 is installed to prevent dry shrinkage cracking of concrete. Artificial turf 15 is installed on the concrete base layer 13.

Figure 2a is a flow chart showing a conventional aggregate-based method, Figure 2b is a cross-sectional view showing the artificial turf structure constructed in accordance with the method of Figure 2a.

In the conventional aggregate-based method shown in Figure 2a, as shown in the initial work is to excavate the ground to a certain depth, such as the concrete-based method to remove the existing soil, and then the trench construction for compacting construction first (step 201). Crushed stone is formed on the flatly ground base to form a lower base layer (step 202). At this time, the lower base layer is formed into a 200mm thickness by laying the crushed stone of 25mm size and then compacting. Next, crushed stone and stone powder are laid on the lower base layer to form an upper base layer (step 203). At this time, the upper base layer is formed into a 100mm thickness by laying the crushed stone and stone powder of 13mm size and compacting. When the aggregate-based construction is completed in this way, the artificial turf to 55mm thickness is constructed thereon (step 204).

Referring to FIG. 2B, the artificial turf structure according to the aggregate-based method of FIG. 2A has a lower base 21 and an upper base 22 formed after removing the existing soil, and an artificial turf 25 is installed thereon.

However, in the conventional concrete or aggregate-based method for artificial turf construction, the earth and sand generated by the removal of the ground must be taken out, new base material should be put in order to form a new ground layer, and all the base materials added in the future restoration It was created as a waste, causing problems both in terms of time, cost and environment.

Accordingly, an object of the present invention was devised in view of the above-mentioned point, to provide a natural restoration artificial grass-based method that can form a base layer by reusing without using the soil hardener to remove the soil of the existing ground to the outside Is in.

Natural restoration-type artificial grass-based method of the present invention for achieving the above object, in the foundation method for the construction of artificial grass, (1) to replace the existing soil of the ground to a certain depth, and (2) hardener Spraying to harden the existing soil to form a hardened layer, and (3) constructing artificial turf after compacting the formed hardened layer.

Natural restorative artificial grass-based construction method of the present invention, by carrying out the work on the current ground, can be restored in the future in the future while reusing the existing soil, not reused, and the construction period can be shortened accordingly It has the effect of providing an eco-friendly, economical method for reducing costs.

1a-1b is a flow chart and a cross-sectional view showing a conventional concrete foundation method and the artificial turf structure according thereto,
2a-2b is a flow chart and cross-sectional view showing a conventional aggregate-based method and the artificial turf structure according thereto,
3 and 4 are a flow chart and a cross-sectional view showing a hardened soil base method and the artificial turf structure according to the present invention.

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

Figure 3 is a flow chart for explaining the hardening soil-based method according to the present invention, Figure 4 is a cross-sectional view showing the artificial turf structure constructed in accordance with the method of FIG.

In the hardening soil-based method of the present invention shown in Figure 3, to smooth the floor of the playground ground in use, that is, the ground, using a tractor or the like to turn over to a depth of approximately 100 ~ 200mm (step 301). Next, the hardened | cured material which mixed the hardening | curing agent and cement in the suitable composition ratio is spread | spreaded on the existing soil of the ground which was grind | pulverized (step 302). At this time, it is also possible to use the loess mortar mortar, which is an environmentally friendly material as a substitute for cement, or a combination of cement and loess mortar. Preferably, one or more cement or ocher mortar is mixed so that 3-15% of the soil weight may be mixed, and the hardening | curing agent is sprayed together at 1/100 with respect to the weight of cement or ocher mortar.

Hardeners harden the soil as concrete. This enables the construction of a natural, eco-friendly construction method that has the same lifespan as the existing concrete pavement, has a fast curing speed, and has excellent safety, durability, and workability. Conventional concrete pavement is a combination of sand, gravel, cement, water, but in the present invention is made of a combination of a small amount of cement, hardener, water in the soil. Cement, if mixed excessively, is not economical and causes environmental problems, so it can be applied after field testing within the limits set by each country.

If the hardened body is used as a material for soft ground improvement method, it can reduce the construction cost and contribute to the preservation of the natural environment. In the soil and basic fields, the hardened body has excellent early strength development, less water and expansion and deformation due to the increase in order and strength, is resistant to weather conditions such as freezing, less shrinkage cracks and environmentally stable. It is easy to handle and has the advantage of obtaining the required early strength just by curing the surface layer.

When spraying the cured product of step 302, spraying olivine crushed soil or charcoal together as an environmentally friendly supplement (step 302 ') may increase the effect of eco-friendly well-being.

Olivine is a type of igneous rock that contains a large amount of magnesium and minerals and is known as volcanic ash soil. It is widely used for eco-friendly purposes. When olivine is added, it has excellent drainage and hardness that can be constructed differently according to the use.

Charcoal is a charcoal made by baking oak, which is known to have effects such as far infrared emission, air purification, impurities removal, and humidity control in addition to electromagnetic wave prevention function.

In addition, other green supplements may be used.

Thereafter, after sprinkling and filling the existing soil on which the cured body is sprayed (step 303), the compaction machine is slowly selected by selecting the load of the compaction machine according to the size of the playground surface (step 304). Compaction construction is mandatory or mechanical compaction on the corners and corners that cannot be compacted with a roller, and sprayed for curing within minutes after compaction to maintain a wet state. The curing period is about 1 to 3 days depending on the atmospheric temperature.

At this time, the total weight ratio is 75 to 81% of soil, 3 to 15% of the hardener mixed with one or two of cement or ocher mortar, and the amount of water used is adjusted within the optimum water content of 14 to 24% depending on the site conditions. Note that the ratio of hardener powder to water is diluted to a rate of 20 liters of water per kilogram.

When the base construction is completed in this way, the artificial turf can be constructed thereon (step 305).

Referring to FIG. 4, the artificial turf structure according to the hardening soil-based method of FIG. 3 is sprayed with a curing agent in which at least one of cement and ocher mortar is mixed or mixed with olivine crushed soil or charcoal on the existing existing soil. To form a hardened layer 31 by curing the thickness to 100 ~ 200㎜, and the silica sand (sand) 33 and the rubber chip 35 to the 55㎜ thickness on the hardened layer 31 as a filler and artificial turf Install.

As described above, the hardened soil-based method of the present invention can be shortened to about one week because the work is carried out in the current ground can be reduced to about one week, it is possible to restore the original soil soil in the future.

It is apparent to those skilled in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

11: auxiliary base 13: concrete base
21: lower base 23: upper base
31: hardened layer 33: silica sand (sand)
35: rubber chip

Claims (8)

In the foundation method for the construction of artificial turf,
(1) crushing the existing soil of the ground to a certain depth;
(2) mixing at least one of cement and ocher mortar with a hardener to form a hardened body, spraying the formed hardened body on the existing soil, sprinkling on the existing soil sprayed with the hardened body, and then forming the hardened layer; And
(3) natural restoring artificial turf-based method comprising the step of constructing artificial turf after compacting the formed hardened layer. delete The method of claim 1, wherein the cured layer is formed of a natural restoring artificial grass-based method, characterized in that formed to a thickness of 100 ~ 200㎜. The method of claim 1, wherein the step (2) is a natural restoration artificial grass-based method, characterized in that the addition of olivine crushed soil or charcoal as an environmentally friendly supplement. The method of claim 1, wherein the step (2) is a natural restoring artificial turf-based method, characterized in that for mixing 3 to 15% of the soil weight by mixing cement or loess mortar. The method according to claim 1 or 5, wherein the amount of the hardener in step (2) is 1/100 to the weight of cement or ocher mortar. The method of claim 1, wherein the amount of sprinkling of step (2) is natural restoring artificial turf-based method, characterized in that adjusted to the optimum water content in the range of 14 to 24%. The method of claim 1, wherein the step (2) is a natural restoring artificial turf-based method, characterized in that dilution at a rate of 20L of water per 1kg of the curing agent powder.

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