KR100572973B1 - The construction of turf athletic field and the method threrefor - Google Patents

Abstract

Disclosed are a grass field and a construction method thereof, which have improved drainage properties and are advantageous for field management in cold and cold weather. The turf ground is formed with a drainage passageway 102 having a predetermined depth at a predetermined interval on the ground which is excavated to a constant depth, and the slope 100 which is inclined downward toward the drainage passage side is formed on the ground 100, A drain pipe 140 accommodated in the drain passage and having a plurality of holes formed on the outer circumferential surface, a first filtration member 141 that is covered by the outer circumferential surface of the drain pipe to prevent foreign substances from entering the hole, and a predetermined thickness on the drain passage and the upper surface of the ground; Soil layer is formed of, and the grass is formed on the upper surface of the soil layer. In the soil layer, pipes in which thermal fluid circulates are buried. Such turf stadiums can improve the performance of the stadium by eliminating condensation and snowing during the cold season, preventing freezing of the ground of the stadium, and extending the growth period of the turf. In addition, by forming inclined ground on both sides of the drainage passage and relatively simplifying the cross-sectional layer of the ground of the stadium, it is possible to improve the smooth drainage capacity even by heavy weight, without resorting to mechanical means requiring high installation costs even during heavy rains during the rainy season.

Lawn, stadium, drainpipe, sloped ground, natural drainage

Description

The construction of turf athletic field and the method threrefor}

1 is a schematic view showing a cross section of a conventional turf golf course,

2 is a cross-sectional view showing a grass field of the present invention;

Figure 3 is a cross-sectional view showing another embodiment of the present invention lawn,

4 is a schematic view of the installation of the thermal insulation / cooling pipe.

* Explanation of symbols for main parts of the drawings

100 ... ground 101 ... incline ground

102.Drainage passage 110 ... 1st gravel floor

120 ... 2nd gravel 130 ... grassroots

132 Grid Net 133 Reticulated Organization

140 Drain pipe 141,142

150 ... thermal insulation pipe 200 ... grass

The present invention relates to a grass stadium and its construction method, and in particular, to enable the surface drainage of the stadium in artificial irrigation or heavy rain by self-gravity drainage by gravity and by heating the ground of the stadium to prevent freezing of the stadium surface and to promote grass growth. It relates to a grass field and its construction method to improve the performance of the winter field.

In general, sports stadiums require rapid drainage to remove water from the surface of the stadium by heavy rainfall or artificial irrigation, and high pressure resistance to withstand surface hardening caused by the pressure of athletes and lawn care equipment.

In order to meet the demands of the sports field, efforts have been made by organizations or inventors to improve the stadium.

The USGA Method (1993 Edition), published by the USGA Association (USGA) Green Section, is a green construction method for golf courses, with a total porosity of 35 to 55% and an hourly saturation permeability of 150 to 300 mm. It is composed of four layers: a planting layer centered on phosphorus sand (0.25 to 0.51 mm) to irradiation (0.5 to 1.0 mm), an intermediate layer composed of royal sand (1 to 4 mm), a gravel layer composed of soybeans, and a drainage layer.

However, the USGA construction method was originally created as a green construction method for golf courses. The cross-sectional structure of this construction method is multi-layered, and the aggregate size of the used aggregate is strict and the aggregate requirements are high, so the construction cost is excessive and the construction procedures and methods are complicated and complicated. This has been a problem.

The so-called California Method, published by the University of California, USA, proposes a golf course green construction method with about 90% of fine sand to medium sand with a particle size of 0.15 to 0.5 mm. Like the USGA, this method is designed as a golf course green construction method, and it has a comparative advantage in terms of easy construction and low cost, but it is a sand soil with a single-layer structure centered on fine sand and heavy sand, so it is vulnerable to water retention and security, and is exposed to drought. Easy has been pointed out as a great fault.

The PURR-wick system, presented by Dr. Daniel's team at Purdue University, Indiana, is a wick of sand, with a waterproof sheet and perforated pipes installed under a single layer of grass planted with sand. By using a large vacuum pump to artificially provide groundwater level control and nutrients in the grass planting layer, by artificially supplying moisture to the dryer by a vacuum pump and forced draining during heavy rain.

This method has a good development of grass roots by artificially controlling the groundwater tension of grass roots, but it interferes with the decomposition and supply of grass catch layer and nutrients by forcing water supply and aeration management at the bottom. In addition, there is a problem that the construction cost is not small and management difficulties can not be excluded.

As described above, the conventional techniques have the following problems.

First, these conventional techniques mainly introduce the construction method for the green construction of a golf course, and are not suitable for various sports fields other than the golf course.

Second, it is unsuitable for climatic environments where the distinction between dryer and rainfall is clear.

Third, the USGA method has high construction and aggregate costs due to the complexity and complexity of construction procedures and methods. Particularly, the aggregate and production of aggregates due to forest greening, dams and reservoirs are greatly reduced, while the standard of the USGA method is required to comply with strict aggregate standards in situations where aggregate vibrations are arising due to increased demand of aggregates due to urbanization and industrialization. The fact that it is increasingly difficult to meet the aggregate standards makes the field applicability of the process even more distant.

Fourth, despite the relatively low cost of construction, the California method requires a considerable amount of management effort, such as weakness in conservative and preservative power, making it easy to be exposed to drought, and frequent fertilization and watering.

Fifth, the technology disclosed in the PURR-wick system has a climate similar to that of South Korea, where 50 to 60% of annual precipitation is concentrated over the summer of 3 to 4 months, and the maximum amount of precipitation per hour is 145 mm and the maximum precipitation is 47.2 mm for 10 minutes. In the environment, the forced drainage system is not necessarily required, and gravity drainage is not considered at all in normal rainfall environments except in heavy rains.

The present invention has been made to solve the problems of the related arts discussed above, and has the following objectives.

First, it is an object of the present invention to provide a grass field and a construction method having a grass root support for securing the field resistance, drainage and ground stability and growth of grass for improving the performance of the stadium.

Second, in order to secure the drainage of the summer stadium where rainfall is concentrated, it is not provided by forced drainage by mechanical means, but also by the self-weight to provide a grass stadium and its construction method so that the surface water can be drained smoothly. have.

Third, to provide turf stadiums and underground constructions with underground insulation / cooling means on the bottom of the stadium to prevent the freezing of the ground of the stadium and to develop the growth of turf for the purpose of improving the performance of the cold season. There is.

Fourth, in order to prevent the disease phenomena and physiological disorders (high phenomena) of turf generated when the maximum temperature of the high temperature and humidity humidifier is between 35-40 ℃, the healthy growth of the high temperature and humidity humidifier grass is installed. To present a way to maintain.

Fifth, the grass field and its construction method can be secured to the pressure resistance, drainage and water retention while the structure of the cross section is relatively simple by avoiding the mechanization of excessive multi-layer structure, single-layer structure and stadium management facility to reduce stadium construction cost and management cost. To provide.

The characteristics of stadium construction and management today are combined with advanced science and technology, and the multi-layered structure of stadium cross-section and mechanization of management means are obvious, so that material and construction costs are getting higher and higher, and the management complexity and high management costs are accompanied. Incidental costs for solving the problems caused by these mechanical mechanisms are also increasing.

Sixth, the grass stadium and its aggregate, which significantly reduced the aggregate cost and aggregate consumption compared to the conventional technology by appropriately using the alternative construction aggregate that recycled construction waste or industrial waste in preparation for the rise of aggregate costs due to the shortage of aggregate supply. It is to provide a construction method.

The grass stadium achieving the above object has a drainage passage of a predetermined depth formed at a predetermined interval on the ground which is flatly stopped, and an inclined ground sloped downward toward the drainage passage is formed on the ground, which is accommodated in the drainage passage and is provided on the outer circumferential surface thereof. A drain pipe having a plurality of holes formed therein, a first filtration member covering the outer circumferential surface of the drain pipe to prevent foreign substances from entering the hole, a soil layer formed to a predetermined thickness on the drain passage and the upper surface of the ground, and the soil layer It characterized in that it comprises a grass formed on the upper surface.

The soil layer is filled in the drainage passage and a first gravel layer made of gravel having a diameter of 25 mm or less, a second gravel layer formed 50 to 100 mm thick from an upper surface of the inclined ground on the upper surface of the first gravel layer and the ground; It is formed as a grass sprinkler formed to a predetermined thickness on the upper surface of the two gravel layers.

The grass roots are mixed with sand, sand or sand, in the range of 0.25 to 1.0 mm, which is 60 to 80% by weight, inorganic or organic soil modifiers, and lattice nets made of plastic or synthetic fibers. It has a structure in which a network structure of plastic or synthetic fabric is provided at a predetermined depth from the upper surface of the zone.

The sand is 3 to 5% of residue 3 to 5% by weight, 5 to 10% of polar irradiation 5 to 10% of 1 to 2 mm, medium to 60 to 80% of 0.25 to 1.0 mm, and 15 to 15 fine yarns of 0.1 to 0.25 mm 25%, 0.05-10 mm microfiber 5-10%, 0.002-0.05 mm fine 3-6%, less than 0.002 mm clay 1-3%.

At least one selected from the group consisting of peat moss, peat, crushed bark, chaff, sawdust, zeolite, calcined clay or calcined diatomaceous earth, pearlite, polymer soil improver is based on the total weight of the grass roots 1 It has a structure in which -8% is mixed.

The network structure is a lattice-shaped network structure 20 to 50 mm below the playing field surface, and the lattice net is a piece of synthetic resin having a size of 50 to 100 mm and contains 0.10 to 4.0 kg per m 3 of sand. .

The grass roots have a thickness of 250 to 300 mm, a permeability coefficient of 130 to 290 mm / h, total porosity of 35 to 60%, large porosity of 15 to 30%, capillary porosity of 20 to 30%, and surface hardness of 16 to 23 Mm, pH 5.5-7.0.

Insulating or cooling pipes are buried in the second gravel layer or the grass roots at a predetermined interval, and a second filtration member is further provided on the upper surface of the first gravel layer to prevent the introduction of foreign matters from the top to the first gravel layer.

The construction method of the lawn stadium of the present invention to achieve the above object is to stop the ground and suppress the ground to form a smooth ground; Forming a drainage passage having a predetermined depth in the ground at a predetermined interval; Forming an inclined ground inclined downward toward the drain passage in the ground; Receiving a drain pipe having a plurality of holes formed in an outer circumferential surface thereof in the drain passage; Forming a soil layer having a predetermined thickness on the drain passage and the upper surface of the ground; It characterized in that it comprises the step of forming a grass on the upper surface of the soil layer.

And installing a discharge pump for discharging water collected in the collection reservoir at an end of the drain pipe. At this time, natural drainage is possible without installing a discharge pump.

In the forming of the soil layer, a gravel having a diameter of 25 mm or less is added to the drain passage to form a first gravel layer, and a second gravel layer having a thickness of 50 to 100 mm from the top surface of the inclined ground on the first gravel layer and the ground surface. And a grass sprinkling zone having a predetermined thickness on an upper surface of the second gravel layer.

The construction method of the present invention comprises the steps of covering the first filtration member to prevent the introduction of foreign matter through the hole in the outer peripheral surface of the drain pipe, and to prevent the foreign matter from the second gravel layer on the upper surface of the first gravel layer Covering the two filtering member further.

The stadium ground is constructed to have a depth of 575 to 1050 mm from the surface of the stadium to the bottom of the drain passage, and each drain passage is constructed at equal intervals of 4 to 6 m from side to side, and the width and depth of the drain passage are 200 to 400 mm, respectively. Construct with.

The first and second filtration members are synthetic fibers having a weight of 200 to 700 g per 1 m 2, and the first gravel layer is at least one selected from natural gravel, crushed stone crushed gravel, and gravel group reprocessed building waste. The size of 6-12mm accounts for 60-80% of the total weight and should be constructed with gravel less than 25mm in diameter.

The sloped ground is constructed with a slope of 3 to 10% downward from the ground center between the drainage passages toward the bidirectional drainage passage.

The step of forming the second gravel layer is at least one selected from natural gravel having a diameter of 2 to 8 mm, crushed and washed gravel, aggregate reprocessed construction waste, and irregular plastic group. Between the lawn sprinkler is installed in a thickness of 50 to 100 mm permeability coefficient of 300 to 600 mm / h.

The grass roots are mixed with sand and sand or sand in which 0.25 to 1.0 mm of heavy sand and irradiation account for 60 to 80% by weight, inorganic or organic soil improving agent, and lattice nets made of plastic or synthetic fibers at a predetermined ratio. A network structure of plastic or synthetic fabric is installed at a predetermined depth from the surface of the fabric.

The sand is 2 to 5% by weight 2 to 3% fine gray, 4 to 10% polar irradiation 4 to 10% of 1 to 2 mm, medium to 60 to 80% of 0.25 to 1.0 mm and fine yarn 10 to 25 of 0.1 to 0.25 mm fine yarn %, 0.05 to 0.1 mm microfiber 2 to 10%, 0.002 to 0.05 mm fine 1 to 6%, less than 0.002 mm clay 1 to 3%

The soil improving agent is at least one selected from the group of peat moss, peat, pulverized bark, rice hull, sawdust, zeolite, calcined clay or calcined diatomaceous earth, pearlite, polymer soil modifying agent on the basis of the weight of the whole grass roots 1 to 8% of the mixture is applied.

The network is constructed at a depth of 20 to 50 mm from the surface of the playing field, and the lattice net is a piece of synthetic resin having a size of 50 to 100 mm, mixed with 0.10 to 4.0 kg per m 3 of sand.

The grass roots have a thickness of 250 to 300 mm, a permeability coefficient of 130 to 290 mm / h, total porosity of 35 to 60%, large porosity of 15 to 30%, capillary porosity of 20 to 30%, and surface hardness of 16 to 23 Apply at mm, pH 5.5-7.0.

In addition, the second gravel layer may be installed by embedding the insulation / cold insulation pipe having a diameter of 15 to 50 mm at regular intervals of 250 to 500 mm, the insulation / cold insulation pipe may be buried in the grass roots.

According to the characteristics of the present invention, the grass field of the present invention is to form the ground between the drainage passages inclined ground to be drained in rainy weather and also to protect the roots of the grass from the external impact by providing a network structure near the surface of the stadium In addition, by constructing a grid net mixed with grass roots to improve drainage and strengthen the ground.

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

Referring to Figure 2 showing a cross section of the turf stadium of the present invention, it is formed in the ground 100 is a flat surface stationary drainage passageway 102 of a predetermined depth at regular intervals, the ground 100 between the drainage passageway 102 Slope ground 101 is inclined downward toward the drain passage 102, the drain pipe 140 is accommodated in the drain passage 102 and formed with a plurality of holes (140a) on the outer peripheral surface, the drain pipe 140 A first filtration member 141 which is covered by an outer circumferential surface of the c) to prevent foreign substances from entering the hole 140a, a soil layer formed on the upper surface of the drain passage 102 and the ground 100 with a predetermined thickness; It is made of grass (200) planted on the upper surface of the soil layer.

The drainage passage 102 is formed at intervals of about 4-6 m, and the width and depth are each formed about 200 mm. The size of the drain passage 102 may be variously changed according to the size of the stadium and the size of the drain pipe 140 accommodated.

The drainage pipe 140 is made of plastic material, the opening ratio of the hole 140a is suitable 4 ~ 7%, and is installed at a predetermined slope to be inclined downward to the outside of the stadium for the desired drainage. The lower end of the inclined drain pipe 140 is exposed to the sewer or outside to allow natural drainage.

In addition, at the end of the drain pipe 140, a water collecting tank (not shown) may be installed and a discharge pump (not shown) for discharging water collected in the water collecting tank may be forcedly discharged.

The first filtration member 141 is a nonwoven fabric, a fabric is used.

On the other hand, the soil layer is filled in the drain passage 102 and the first gravel layer 110 made of gravel having a diameter of 25mm or less, the first gravel layer 110 and the inclined ground 101 on the upper surface of the ground 100 The second gravel layer 120 is formed to have a thickness of 50 ~ 100mm from the upper surface, and the grass roots 130 formed to a predetermined thickness on the upper surface of the second gravel layer 120.

The first gravel layer 110 is filled around the gravel having a particle diameter of 6 ~ 12mm standard and can be employed up to 25mm around the drain pipe 140.

A second filtration member 142 is installed on an upper surface of the first gravel layer 110 to prevent the input of silt, clay, and other foreign matter from the top to the first gravel layer 110.

The second gravel layer 120 supports the mixed soil of the grass roots 130 and increases the permeability, and functions as a heat conduction and thermal insulation means for the thermal insulation / cold pipe 150 installed in the second gravel layer 120. . The second gravel layer 120 is filled from the top of the second filtration member 142 to the vertex of the inclined ground 101 having a gradient, and then is formed to a depth of about 50 to 100 mm between the vertex and the grass roots 130. It is formed of gravel having a particle diameter of about 2 to 8 mm and a permeability coefficient of about 300 to 600 mm / h.

The gravel of the second gravel layer 120 is not limited to natural gravel, and aggregates having a certain strength and particle size by reprocessing crushed gravel gravel or construction waste, which have been pulverized and washed according to circumstances and conditions, to achieve the object of the present invention. It may be composed of a high strength plastic material having high thermal conductivity and thermal insulation, or a mixture thereof.

The first and second gravel layers 110 and 120 may be made of silica (which is less likely to be exposed to weathering) in order to prevent erosion of the surface of the stadium due to weathering due to the pressure of the athlete or lawn care equipment and fertilization. It is preferable to use those mainly composed of SiO 2), and compaction should be carried out through sufficient rolling. The gravel is ranked in the order of safety from the easy to weathered to the hard to weathered: olivine, fluorite, hornblende, biotite, plagioclase, feldspar, dolomite and quartz.

In addition, the insulating / cold pipe 150 embedded in the second gravel layer 120 may be provided as a plastic or copper pipe.

The heat insulation / cold pipe 150 is a plastic pipe or copper pipe having excellent thermal conductivity and thermal insulation having a diameter of 15 to 50 mm in the second gravel layer 120 at 250 to 500 mm intervals, and the like, using electric or solar power. The grass sprinkler 130 is heated. In order to prevent freezing of the stadium surface and to promote turf growth, the underground target temperature should be maintained at 10 to 29 ° C. at 100 to 150 mm from the surface of the stadium where the roots of the grass 200 are concentrated. The thickness of the root zone 130 is preferably 250 mm.

In order to keep warm, in addition to the heat / insulation pipe 150 embedded in the ground of the stadium, a method of using a polyethylene film, a nonwoven fabric, or a cover of the fabric is not excluded in some cases.

In the embodiment of the present invention, referring to Figure 4, the main energy source to be used in the heat exchange unit 171 for underground heat insulation is the solar energy, and the auxiliary energy source is preferably to use electrical energy, in particular, midnight electricity. Examples of heat transfer medium for ground insulation include water, steam, air, flue gas, petroleum, mercury, sodium, potassium, and dowtherm, which is a mixture of biphenyl ether and biphenyl. In the example, a heat medium is preferably a mixture of Dow-sum, which is a mixture of biphenyl ether and biphenyl, or one of calcium chloride, magnesium chloride, ethylene glycol, and ethyl alcohol in an appropriate ratio.

On the other hand, by circulating the cooling water through the heat insulation / cold storage pipe 150 embedded in the culvert in the heat exchanger, the cold weather is converted to underground cooling means. In the mainland grass, which is the mainstream of the stadium grass, the possibility of the disease increases further in the high temperature and high humidity of the temperature of 35 ~ 40 ℃, and further, the growth obstacle occurs. By circulating the cooling water in the heat / cooling pipe 150 stage in such a high temperature and high humidity, the ground temperature of the underground root portion of the grass roots 130 is reduced to 10 to 29 ° C. to ensure the healthy growth and development of the high temperature and high humidity grass. It is to promote efficient operation.

In the cold season, hot water of the fluid storage tank 172 heated by solar or electric power is supplied to the heat / insulation pipe 150 through a circulation pump 174 to heat the grass turf 130 of the stadium, and then recovered. The hot water is introduced into the fluid storage tank 172 via the heat exchanger 171, and this process is repeated by the programmed thermostat 173.

On the other hand, referring to Figure 3, the thermal insulation / cold storage pipe 150 may be installed in the lawn sprinkler 130.

The insulation / insulation pipe 150 is not necessarily installed in the second gravel layer 120 having a thickness of 50 to 100 mm according to the use of the stadium or the weather and construction conditions. When the heat insulation / cold pipe 150 is embedded in the lawn sprinkler 130, the second gravel layer 120 is provided only up to the vertex of the inclined ground 101. In addition, by giving the inclination of the inclined ground 101 to 3 to 15%, it is possible to induce a smooth self-weight drainage by a more steep inclination.

Referring to FIG. 3, the grass roots 130 include sand 131 having a weight of 60 to 80% by weight and irradiation in the range of 0.25 to 1.0 mm, an inorganic or organic soil improving agent, and a plastic or synthetic fiber. The grid net 132 is mixed together, and the network structure 133 of plastic or synthetic fabric is provided at a predetermined depth from the upper surface of the lawn sprinkler 130.

The sand 131 is 3 to 5% of residues 3 to 5% by weight, 5 to 10% of polar irradiation 5 to 10% of 1 to 2 mm, 60 to 80% of heavy sand and 0.25 to 1.0 mm of irradiation and 0.1 to 0.25 mm of 15 to 25% of fine yarns, 5 to 10% of ultrafine fibers, 5 to 10% of fine yarns, 3 to 6% of fine yarns of 0.002 to 0.05 mm, and 3% or less of clay of less than 0.002 mm.

At least one selected from the group consisting of peat moss, peat, pulverized bark, chaff, sawdust, zeolite, calcined clay or calcined diatomaceous earth, pearlite, and polymer soil modifier is 1-8% by weight. It is structured.

The network 133 is a lattice network structure 20 to 50 mm below the surface of the stadium, the grid net 132 is a piece of synthetic resin of 50 to 100 mm size 0.10 to 4.0 kg per m 3 of sand It has an included structure.

The grass turf 130 has a thickness of 250 to 300 mm, a permeability coefficient of 130 to 290 mm / h, a total porosity of 35 to 60%, a large porosity of 15 to 30%, a capillary porosity of 20 to 30%, and surface hardness. It is comprised at 16-23 mm and pH 5.5-7.0.

On the other hand, in the turf field of the present invention, the irrigation system is based on the conventional technology established in the turf ground or golf course green construction. The USGA or California construction method employs a water reservoir around the stadium, a water pipe buried in the ground of the stadium, and a ground watering method by a rotary pop-up sprinkler.

In the grass stadium having the above-described configuration, the inclined ground 101 is formed on the ground 100 on both sides of the drain passage 102 so that water does not accumulate on the ground and the drain is smoothly drained to the drain passage 102 side. do.

In addition, by embedding the thermal insulation / cold storage pipe 150 in the second gravel layer 120 or the grass sprinkler 130, it is possible to protect the grass by warming / cooling the stadium in the cold or cold.

In addition, the reticular tissue 133 of the grass roots 130 allows to protect the grass roots from the impact caused by the exercise line or grass care equipment, and improves drainage due to the grid net (132).

The grass stadium of the embodiment of the present invention as described above is constructed by the following construction method.

The grass stadium stops and suppresses the ground to form a flat ground, forming a drainage passage of a predetermined depth at a predetermined interval on the ground, and forming a sloped slope sloped downward toward the drainage passage on the ground. And receiving a drain pipe having a plurality of holes formed in an outer circumferential surface thereof in the drain passage, forming a soil layer having a predetermined thickness on the drain passage and the upper surface of the ground, and forming a grass on the upper surface of the soil layer. It is formed through.

The drain pipe is installed to be inclined downward toward the edge of the stadium and drained naturally. In addition, at the end of the drain pipe may be forced to drain by installing a water collecting tank and a discharge pump for discharging the water collected in the water collecting tank.

In the forming of the soil layer, a gravel having a diameter of 25 mm or less is added to the drain passage to form a first gravel layer, and a second gravel layer having a thickness of 50 to 100 mm from the top surface of the inclined ground on the first gravel layer and the ground surface. And a grass sprinkling zone having a predetermined thickness on an upper surface of the second gravel layer.

The first filtration member is covered on the outer circumferential surface of the drain pipe through the hole to cover the first filtration member, and the second filtration member is covered on the upper surface of the first gravel layer to prevent foreign substances from entering the second gravel layer.

The stadium ground is constructed to have a depth of 575 to 1050 mm from the surface of the stadium to the bottom of the drain passage, and each drain passage is constructed at equal intervals of 4 to 6 m from side to side, and the width and depth of the drain passage are 200 to 400 mm, respectively. Construct with.

The first and second filtration members are synthetic fibers having a weight of 200 to 700 g per m 2, and the first gravel layer is at least one selected from natural gravel, crushed stone crushed gravel and gravel group reprocessed construction waste. The size of 6-12mm accounts for 60-80% of the total size and it is constructed with gravel less than 25mm in diameter.

The sloped ground is constructed with a slope of 3 to 10% downward from the ground center between the drainage passages toward the bidirectional drainage passage.

The step of forming the second gravel layer is at least one selected from natural gravel having a diameter of 2 to 8 mm, crushed and washed gravel, aggregate reprocessed construction waste, and irregular plastic group. Between the lawn sprinkler is installed in a thickness of 50 to 100 mm permeability coefficient of 300 to 600 mm / h.

The grass roots are mixed with sand and sand or sand in which 0.25 to 1.0 mm of heavy sand and irradiation account for 60 to 80% by weight, inorganic or organic soil improving agent, and lattice nets made of plastic or synthetic fibers at a predetermined ratio. A network structure of plastic or synthetic fabric is installed at a predetermined depth from the surface of the fabric.

The sand is 2 to 3 mm fine brown 3 to 5%, 1 to 2 mm pole irradiation 5 to 10%, 0.25 to 1.0 mm heavy sand and 60 to 80% and 0.1 to 0.25 mm fine yarn 15 to 25 %, 0.05 to 0.1 mm microfiber 5 to 10%, 0.002 to 0.05 mm fine 3 to 6%, less than 0.002 mm clay 3% or less

The soil improving agent is at least one selected from the group consisting of peat moss, peat, pulverized bark, rice hull, sawdust, zeolite, calcined clay or calcined diatomaceous earth, pearlite, and polymer soil modifier, which is mixed by 1 to 8% by weight. do.

The network is constructed at a depth of 20 to 50 mm from the surface of the playing field, and the lattice net is a piece of synthetic resin having a size of 50 to 100 mm, mixed with 0.10 to 4.0 kg per m 3 of sand.

The grass roots have a thickness of 250 to 300 mm, a permeability coefficient of 130 to 290 mm / h, total porosity of 35 to 60%, large porosity of 15 to 30%, capillary porosity of 20 to 30%, and surface hardness of 16 to 23 Apply at mm, pH 5.5-7.0.

In addition, the second gravel layer may be installed by installing a thermal insulation / cold insulation pipe having a diameter of 15 to 50 mm at regular intervals of 250 to 500 mm, and the thermal insulation / cold insulation pipe may be embedded in the grass roots.

Insulation / cooling pipes are equally arranged at equal intervals of 250 to 500 mm, which can maintain the target temperature of 10 to 29 ° C in the grass roots. In the cold season, hot water from a fluid storage tank heated by solar or electric power is supplied to a heat / insulation pipe through a circulation pump to heat the grass roots of a stadium, and the recovered hot water is introduced into the fluid storage tank through a heat exchange means. This process repeats the feedback by means of a programmed thermostat. On the other hand, in the heat of the cold is to achieve the object of the present invention by repeating this process using the cooling water.

On the other hand, the watering system of the turf field of the present invention is in accordance with a conventionally established technique consisting of a reservoir on the side of the stadium, a water supply pipe in the ground of the stadium, and a rotary pop-up sprinkler.

As described above, in the construction of the lawn stadium, the water formed on the surface of the stadium due to rainfall or artificial irrigation is permeated to the top grass roots and maintains the water table with a constant surface tension until reaching the saturation point. When this saturation point is reached, the surface tension is collapsed by gravity, and it passes through the lower second gravel layer and moves to the first gravel layer, which is the lowest point of the playing field, by its own weight. Water moved to the first gravel layer is discharged from the bottom of the drainage passage, penetrates through the holes of the drainage pipe, flows to the inclined drainage pipe side, and is discharged by its own weight.

In addition, the grass roots prepared as described above provides increased hardness of the ground, as well as increased pressure resistance and preventing soil solidification, improved soil porosity, water retention and bobbin power.

On the lawn sprinkler is a natural grass field is completed by breeding the natural grass in the grass seed or crawling underground pulsar plug and roll-type turf transplantation other meteor / asexual method. Turfgrass species include Zoysiagrass, which is warm in Korea, and Kentucky bluegrass, Perenial ryegrass, and mixed species, Bentgrass, and Tall fescue, which are used in warm climates. If you want to quickly create a natural turf space, you can immediately use the stadium stadium within 1 to 3 months by transplanting the grass produced by the first species rolled turf.

The present invention as described above is not limited only to the above embodiments, it goes without saying that many modifications can be made without departing from the spirit and scope of the present application.

The present invention as described above has the following advantages.

First, in the case of high-temperature use of the stadium during the cold season, the pipes with heat fluid circulating in the grass sprinkling zone remove condensation and snow cover, prevent freezing of the ground of the stadium, and improve the performance of the stadium by extending the growing period of the grass.

In addition, by circulating the cooling water in the hot and humid summer pipes to maintain the temperature of the grass roots at an appropriate level to control the possibility of turf physiological disorders and diseases it is possible to grow healthy grass.

Second, the adoption of reticular structures and grid nets has the effect of securing the field resistance of grass turf, increasing drainage capacity, increasing water holding capacity and stabilizing force, and increasing surface hardness, and promoting the rapid recovery of damaged grass. have.

Thirdly, the present invention forms a sloped ground on both sides of the drainage passage and relatively simplifies the cross-sectional layer of the ground of the stadium so that it does not rely on mechanical means requiring high installation costs even during heavy rains during the rainy season, and provides a smooth drainage capacity even by its own weight. Improve.                     

Fourth, the present invention reduces the total construction cost by avoiding excessive aggregate structure or single-layer structure, while reducing the total aggregate consumption and aggregate cost, and at the same time using the alternative aggregate recycled construction waste and industrial waste to reduce the overall construction cost .

Claims (30)

In the turf arena, A drainage passageway of a certain depth is formed at a predetermined interval on the ground which is flattened by a constant depth, and an inclined ground sloped downward toward the drainage passageway is formed on the ground. A drain pipe accommodated in the drain passage and having a plurality of holes formed on an outer circumferential surface thereof; A first filtration member covered with an outer circumferential surface of the drain pipe to prevent foreign matter from entering the hole; A soil layer formed at a predetermined thickness on the drain passage and the upper surface of the ground; Turf playing field, characterized in that it comprises a grass formed on the upper surface of the soil layer. The method of claim 1, wherein the soil layer is filled in the drain passage and the first gravel layer made of gravel having a diameter of 25mm or less, A second gravel layer formed on the upper surface of the first gravel layer and on the ground and having a thickness of 50 to 100 mm from the upper surface of the inclined ground; Turf arena, characterized in that formed on the upper surface of the second gravel layer grass turf formed to a predetermined thickness. According to claim 2, wherein the grass turf is a sand or sand in the range of 0.25 to 1.0 mm in the range of 60 to 80% by weight, inorganic or organic soil improver, and plastic or synthetic fiber lattice net together Mixed, Lawn stadium, characterized in that the network structure of the plastic or synthetic fabric is provided at a predetermined depth from the upper surface of the grass roots. 4. The sand according to claim 3, wherein the sand is 2 to 5% of residues 2 to 3 mm by weight, 4 to 10% of polar irradiation 4 to 10% of 1 to 2 mm, 60 to 80% of irradiation and 0.25 to 1.0 mm of irradiation, and 0.1 to A turf arena comprising 10 to 25% of fine fibers of 0.25 mm, 2 to 10% of fine fibers of 0.05 to 0.1 mm, 1 to 6% of 0.002 to 0.05 mm fine yarn, and 1 to 3% of clay of less than 0.002 mm. The soil improving agent according to claim 3 or 4, wherein the soil improving agent is at least one selected from the group consisting of peat moss, peat, crushed bark, chaff, sawdust, zeolite, calcined clay or calcined diatomaceous earth, pearlite, and polymer soil modifier. Turf playing field, characterized in that 1 to 8% by weight of the total grass roots mixed. The grass field as claimed in claim 3 or 4, wherein the network structure is provided as a grid-like network structure 20 to 50 mm below the surface of the stadium. 5. The turf playing field according to claim 3 or 4, wherein the lattice net is a piece of synthetic resin having a size of 50 to 100 mm and contains 0.10 to 4.0 kg per m3 of sand. The method according to claim 3 or 4, wherein the grass turf has a thickness of 250 to 300 mm, a permeability coefficient of 130 to 290 mm / h, total porosity of 35 to 60%, large porosity of 15 to 30%, and capillary porosity. 20-30%, surface hardness of 16-23 mm, pH 5.5-7.0. 3. The turf playing field of claim 2, wherein an insulating / cold pipe through which heat fluid circulates is buried at a predetermined interval in the second gravel layer. 3. The turf playing field of claim 2, wherein heat / cold pipes through which heat fluid circulates are buried at predetermined intervals in the grass sprinkling zone. 3. The turf playing field of claim 2, further comprising a second filtration member on an upper surface of the first gravel layer to prevent the introduction of foreign matters from the top to the first gravel layer. In the construction method of the lawn stadium, Stopping and suppressing the ground to create a smooth ground; Forming a drainage passage having a predetermined depth in the ground at a predetermined interval; Forming an inclined ground inclined downward toward the drain passage in the ground; Receiving a drain pipe having a plurality of holes formed in an outer circumferential surface thereof in the drain passage; Forming a soil layer having a predetermined thickness on the drain passage and the upper surface of the ground; Construction method of the grass stadium, characterized in that it comprises the step of forming a grass on the upper surface of the soil layer. The method of claim 12, further comprising the step of installing a water collecting reservoir at the end of the drain pipe and the discharge pump for discharging the water collected in the water collecting reservoir. The method of claim 12 or 13, wherein the forming of the soil layer comprises a gravel layer having a diameter of 25 mm or less in the drainage passage to form a first gravel layer, and the inclined ground top surface on the upper surface of the first gravel layer and the ground. Forming a second gravel layer with a thickness of 50 ~ 100mm from, the lawn stadium construction method, characterized in that to form a grass sprinkler with a predetermined thickness on the upper surface of the second gravel layer. 15. The method of claim 14, further comprising: covering the first filtration member to prevent the introduction of foreign matter through the hole on the outer circumferential surface of the drain pipe, and to prevent foreign matter from the second gravel layer on the upper surface of the first gravel layer. Lawn stadium construction method characterized in that it further comprises the step of covering the second filtration member. The method of claim 12 or 13, wherein the stadium ground is constructed so as to have a depth of 575 ~ 1050 mm from the surface of the stadium to the bottom of the drain passage. 15. The construction of the lawn stadium according to claim 12 or 13, wherein the respective drainage passages are constructed at equal intervals of 4 to 6m from side to side, and the width and depth of the drainage passages are 200 to 400mm, respectively. Way. The method of claim 15, wherein the first and second filtering members are synthetic fibers having a weight of 200 to 700 g per 1 m 2. 15. The method according to claim 14, wherein the first gravel layer is at least one selected from natural gravel, washed and selected crushed stone gravel, and gravel group reprocessed construction waste, and the diameter of 6 to 12 mm is 60 to 80% by weight. A construction method of a grass stadium, characterized in that the construction is made of gravel of less than 25mm in diameter. The method of claim 12 or 13, wherein the inclined ground is constructed with a slope of 3 to 10% downward from the ground center between the drain passages toward the two-way drain passage. The method of claim 14, wherein the forming of the second gravel layer is at least one selected from natural gravel having a diameter of 2 to 8 mm, crushed and washed gravel, aggregate reprocessed construction waste, and irregular plastic group. The construction method of the grass field, characterized in that the pitch is installed between the top of the slope and the grass sprinkler with a thickness of 300 ~ 600 mm / h 50 to 100 mm thick. 15. The method according to claim 14, wherein the turf grass zone is a sand or sand in the range of 0.25 to 1.0mm in the range of 60 to 80% by weight, inorganic or organic soil improver, and plastic or synthetic fiber lattice nets Mix in proportion, A construction method for a lawn stadium, characterized in that a network of plastic or synthetic fabric is provided at a predetermined depth from the surface of the stadium. 23. The sand according to claim 22, wherein the sand is 2 to 5% by weight, 2 to 5% fine grain, 2 to 5% polar irradiation 4 to 10%, 1 to 2 mm polar irradiation, 0.25 to 1.0 mm heavy sand and 60 to 80%, and 0.1 to 0.25 Method for construction of turf arena, characterized by mixing with 10-25% of microfibers, 2-10% of 0.05-0.1mm microfibers, 1-6% of 0.002-0.05mm fines, and 1-3% of clays less than 0.002mm . 24. The soil improving agent according to claim 22 or 23, wherein the soil improving agent is at least one selected from the group consisting of peat moss pits, pulverized barks, chaff, sawdust, zeolites, calcined clay or calcined diatomaceous earth, pearlite, and polymer soil modifiers. Construction method of the grass arena characterized in that the construction by mixing 1 to 8% by weight based on the entire grass roots. 24. The method of claim 22 or 23, wherein the network structure is constructed at a depth of 20 to 50 mm from the surface of the stadium. 24. The method of claim 22 or 23, wherein the lattice net is a piece of synthetic resin having a size of 50 to 100 mm and is mixed with 0.10 to 4.0 kg per 1 m 3 of sand. 23. The method according to claim 22, wherein the grass turf has a thickness of 250 to 300mm, a permeability coefficient of 130 to 290mm / h, total porosity of 35 to 60%, large porosity of 15 to 30%, capillary porosity of 20 to 30% The construction method of the lawn arena characterized by the construction of a surface hardness of 16 to 23 mm, pH 5.5 to 7.0. 15. The method of claim 14, wherein the second gravel layer is constructed by embedding a thermal / cold pipe through which heat fluid is circulated at a predetermined depth from the surface of the stadium at regular intervals. 15. The method of claim 14, wherein the thermal insulation / cold pipe through which heat fluid is circulated in the grass roots is embedded at regular intervals. 30. The method according to claim 28 or 29, wherein the heat storage / cold pipe is connected to a fluid storage tank for storing heat fluid, a heat exchange part for exchanging heat fluid is connected, and the fluid in the fluid storage tank is forced to circulate to the cold / cold pipe. Construction method of the grass stadium, characterized in that for installing and connecting the circulation pump.

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