JP2008266949A - Artificial turf laying structure - Google Patents

Artificial turf laying structure Download PDF

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JP2008266949A
JP2008266949A JP2007109733A JP2007109733A JP2008266949A JP 2008266949 A JP2008266949 A JP 2008266949A JP 2007109733 A JP2007109733 A JP 2007109733A JP 2007109733 A JP2007109733 A JP 2007109733A JP 2008266949 A JP2008266949 A JP 2008266949A
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artificial turf
layer
laying structure
sheet material
roadbed
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Kanji Nakajima
観司 中島
Masashi Shikada
昌史 鹿田
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SHIIMA CONSULTANT KK
Cima Consultant KK
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Cima Consultant KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an artificial turf laying structure which includes a temperature rise prevention function, cushioning properties and impact relaxation performance, and which is excellent in drainability, water retentivity and durability. <P>SOLUTION: In this artificial turf laying structure 1, artificial turf 5, which is formed by implanting an artificial turf material 5a into a sheet material 5b with water permeability, is laid on a palm nonwoven mat 6 which is laid on a base course layer 3 formed on foundation ground 2; and a surface layer 4 is formed on the sheet material 5b. The surface layer 4 is formed of rubber chips; and the base course layer 3 is formed of an improved base course material containing a soil material, a cement-based solidification agent, a polymer-based soil improving material, a foamed glass material, and FS granulated sand. The artificial turf material 5a is implanted in the sheet material 5b formed of a rubber or a synthetic resin, and a through hole 5c for water permeation is perforated in the sheet material 5b for a section corresponding to a section between the artificial turf materials 5a adjacent to each other. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、サッカーグラウンド等の競技場や運動場あるいは屋上緑地等の造成に適した人工芝敷設構造に関する。   The present invention relates to an artificial turf laying structure suitable for creating a stadium such as a soccer ground, a playground, or a rooftop green space.

従来の人工芝敷設構造物として、例えば、図３に示すようなものがある。図３に示す人工芝敷設構造３０は、地盤３４上に形成された路盤層３１と、路盤層３１上に配置された人工芝３３及び目砂層４２とで形成されている。路盤層３１は、クラッシャーラン、開粒アスファルト、ポーラスコンクリートなどの混練物によって形成され、目砂層４２は珪砂等によって形成されている。   An example of a conventional artificial turf laying structure is shown in FIG. The artificial turf laying structure 30 shown in FIG. 3 is formed by a roadbed layer 31 formed on the ground 34, and an artificial turf 33 and a mesh sand layer 42 disposed on the roadbed layer 31. The roadbed layer 31 is formed by a kneaded material such as crusher run, open grained asphalt, porous concrete, and the like sand layer 42 is formed by silica sand or the like.

従来の人工芝敷設構造３０において、路盤層３１及び目砂層４２の排水機能は優れているものの、天然芝生のような保水機能はないので、降雨や散水などによって人工芝３３部分に供給された水分は、図３中の垂直下向き矢印で示すように、目砂層４２及び路盤層３１を短時間で通過して急速に地盤３４へ吸い込まれてしまう。このため、人工芝敷設構造３０が施工された領域では、夏場の日照などによる温度上昇が激しく、いわゆるヒートアイランド現象を助長することがある。   In the conventional artificial turf laying structure 30, although the drainage function of the roadbed layer 31 and the mesh sand layer 42 is excellent, there is no water retention function like a natural lawn, so the moisture supplied to the artificial turf 33 part by rain or watering etc. As shown by a vertical downward arrow in FIG. 3, it passes through the mesh sand layer 42 and the roadbed layer 31 in a short time and is rapidly sucked into the ground 34. For this reason, in the area where the artificial turf laying structure 30 is constructed, a temperature rise due to sunshine in the summertime is severe, which may promote the so-called heat island phenomenon.

そこで、このような状況を解決するため、保水機能を有する人工芝敷設構造が開発されている（例えば、特許文献１，２参照。）。これらの人工芝敷設構造は、人工芝よりも下層領域に保水手段を備えたものであり、夏場などの高温時期に、保水手段から人工芝を経由して蒸発する水分が気化熱を奪う現象を利用して、温度上昇を回避するものである。   Then, in order to solve such a situation, the artificial turf laying structure which has a water retention function is developed (for example, refer patent document 1, 2). These artificial turf laying structures are equipped with water retention means in the lower layer area than artificial turf, and the phenomenon that moisture evaporating from the water retention means via artificial turf deprives the heat of vaporization at high temperatures such as summer. It is used to avoid temperature rise.

特開平０７−１２７０１１号公報Japanese Patent Application Laid-Open No. 07-127011 特開２００３−１２９４０８号公報JP 2003-129408 A

特許文献１に記載された人工芝敷設構造（人工植栽の敷設構造）の場合、最下部にコンクリート層が配設されているため、施工の際にはコンクリートを打設するための労力、資材が必要である。また、人工芝シートの直下に配設された土層は降雨時にぬかるみが生じやすく、それが原因となって不陸が発生することがある。さらに、土層は、施工後１年程度経過すると、透水性が悪化し、水を吸収し難くなるので、保水機能を失ってしまうことがある。また、この人工芝敷設構造（人工植栽の敷設構造）は、クッション性（衝撃緩和性）も不十分である。   In the case of the artificial turf laying structure (artificial planting laying structure) described in Patent Document 1, since the concrete layer is arranged at the bottom, labor and materials for placing concrete during construction is required. In addition, the soil layer disposed directly under the artificial turf sheet is likely to become muddy during rainfall, which may cause unevenness. Furthermore, since about 1 year after construction, the soil layer deteriorates its water permeability and it becomes difficult to absorb water, so the water retention function may be lost. In addition, this artificial turf laying structure (artificial planting laying structure) is also insufficient in cushioning properties (impact mitigation properties).

一方、特許文献２に記載された人工芝敷設構造（水分保持型人工芝）は構造が複雑であるため、施工の際には多大な労力と資材とを必要とする。このため、競技場や運動場のように面積の広い場所に施工するのは困難であり、実用性に欠ける面がある。また、この人工芝敷設構造（水分保持型人工芝）も、前述の人工芝敷設構造（人工植栽の敷設構造）と同様、クッション性（衝撃緩和性）が不十分である。   On the other hand, the artificial turf laying structure (moisture retention type artificial turf) described in Patent Document 2 has a complicated structure, and therefore requires a great deal of labor and materials during construction. For this reason, it is difficult to construct a large area such as a stadium or a sports field, and there is a lack of practicality. Also, this artificial turf laying structure (moisture retention type artificial turf) has insufficient cushioning properties (impact mitigation) like the above-mentioned artificial turf laying structure (artificial planting laying structure).

本発明が解決しようとする課題は、昇温抑制機能及びクッション性、衝撃緩和性を備え、排水性、保水性及び耐久性に優れた人工芝敷設構造を提供することにある。   The problem to be solved by the present invention is to provide an artificial turf laying structure that has a temperature rise suppression function, cushioning properties, and impact relaxation properties, and is excellent in drainage, water retention and durability.

本発明の人工芝敷設構造は、基礎地盤上に形成された路盤層上に、透水性を有するシート材に人工芝材を植設して形成された人工芝を敷設し、前記人工芝材が露出した状態で前記シート材上に表面層を形成して成る人工芝敷設構造であって、
前記表面層がゴムチップで形成され、
前記路盤層が、土壌材と、セメント系固化剤又は石灰と、高分子化合物系土壌改良材と、発泡ガラス材と、ＦＳ造粒砂と、を含む改良路盤材で形成され、
前記シート材と前記路盤層との間に、植物素材で形成された不織マットを介在させたことを特徴とする。 The artificial turf laying structure of the present invention lays an artificial turf formed by planting an artificial turf material on a water-permeable sheet material on a roadbed layer formed on a foundation ground, and the artificial turf material is An artificial turf laying structure in which a surface layer is formed on the sheet material in an exposed state,
The surface layer is formed of a rubber chip;
The roadbed layer is formed of an improved roadbed material including a soil material, a cement-based solidifying agent or lime, a polymer compound-based soil improvement material, a foamed glass material, and FS granulated sand,
A non-woven mat formed of a plant material is interposed between the sheet material and the roadbed layer.

ここで、ＦＳ造粒砂とは、石炭焼却灰中のフライアッシュ（粒径１０μｍ以下）、セメント、水及び重金属溶出抑制剤を混練し、造粒工程を経て形成された、平均粒径２ｍｍ程度の人工造粒砂をいう。   Here, FS granulated sand is kneaded with fly ash (particle size of 10 μm or less), cement, water, and heavy metal elution inhibitor in coal incineration ash, and is formed through a granulation step. The average particle size is about 2 mm. The artificial granulated sand.

このような構成とすれば、ゴムチップで形成された表面層及び不織マットが弾力性、透水性を有するとともに、その下方に位置する、土壌材と、セメント系固化剤又は石灰と、高分子化合物系土壌改良材と、発泡ガラス材と、ＦＳ造粒砂とを含む改良路盤材で形成された路盤層が吸水性及び保水性を備えたものとなるため、全体的なクッション性、衝撃緩和性、吸水性及び保水性が大幅に向上する。従って、降雨や散水により人工芝に降り注いだ水分は表面層及び人工芝のシート材を速やかに通過して不織マット及び路盤層に吸い込まれ、その内部に貯留される。   With such a configuration, the surface layer and the nonwoven mat formed of rubber chips have elasticity and water permeability, and are located below, a soil material, a cement-based solidifying agent or lime, and a polymer compound Since the roadbed layer formed of the improved roadbed material containing the soil-based soil improvement material, foamed glass material, and FS granulated sand has water absorption and water retention properties, overall cushioning and impact relaxation properties Water absorption and water retention are greatly improved. Therefore, the water that has poured onto the artificial turf due to rain or water spray quickly passes through the surface layer and the artificial turf sheet material, and is sucked into the non-woven mat and the roadbed layer and stored therein.

日照などにより人工芝付近の温度が上昇すると、不織マット及び路盤層に保持されている水分は表面層の上面から大気中へ蒸発していき、このときに気化熱を奪うことによって温度上昇を抑制することができる。不織マットは植物素材で形成されているため周辺の土壌環境等に悪影響を及ぼすことがなく、優れたクッション性、衝撃緩和性を発揮する。   When the temperature in the vicinity of the artificial turf rises due to sunlight, the moisture retained in the non-woven mat and the roadbed layer evaporates from the upper surface of the surface layer into the atmosphere. Can be suppressed. The non-woven mat is made of plant material and does not adversely affect the surrounding soil environment, etc., and exhibits excellent cushioning and impact relaxation properties.

ゴムチップで形成された表面層は透水性が良好であり、ＦＳ造粒砂及び発泡ガラス材等を含む路盤層は吸水性、保水性に優れているため、人工芝部分の排水性は極めて良好である。また、発泡ガラス材を含む路盤層は高い圧縮強度を有している。このため、従来の土層のように、降雨時に表面がぬかるんだり、施工後に吸水性が悪化したりすることがないので、不陸が発生せず、耐久性にも優れている。なお、発泡ガラスの粒径は５ｍｍ〜４０ｍｍ程度が好適であり、その混入量は、土壌材と、セメント系固化剤又は石灰と、高分子化合物系土壌改良材との混合物の体積の２０％〜６０％程度が好適である。   The surface layer formed of rubber chips has good water permeability, and the roadbed layer containing FS granulated sand and foamed glass material has excellent water absorption and water retention, so the drainage of the artificial turf portion is extremely good. is there. Moreover, the roadbed layer containing the foamed glass material has high compressive strength. For this reason, unlike the conventional soil layer, the surface does not become muddy at the time of rain, and the water absorption does not deteriorate after construction, so that no unevenness occurs and the durability is excellent. The particle size of the foam glass is preferably about 5 mm to 40 mm, and the mixing amount thereof is 20% to the volume of the mixture of the soil material, the cement-based solidifying agent or lime, and the polymer compound-based soil conditioner. About 60% is preferable.

また、本発明の人工芝敷設構造は、基礎地盤上に形成された路盤層上に、透水性を有するシート材に人工芝材を植設して形成された人工芝を敷設し、前記人工芝材が露出した状態で前記シート材上に表面層を形成して成る人工芝敷設構造であって、
前記表面層がゴムチップで形成され、
前記路盤層が、土壌材と、セメント系固化剤又は石灰と、高分子化合物系土壌改良材とを含む上層及びＦＳ造粒砂を含む下層で形成され、
前記シート材と前記路盤層との間に、植物素材で形成された不織マットを介在させたことを特徴とする。 Further, the artificial turf laying structure of the present invention lays an artificial turf formed by planting an artificial turf material on a water-permeable sheet material on a roadbed layer formed on a foundation ground, and the artificial turf An artificial turf laying structure in which a surface layer is formed on the sheet material with the material exposed,
The surface layer is formed of a rubber chip;
The roadbed layer is formed of an upper layer containing a soil material, a cement-based solidifying agent or lime, and a polymer compound-based soil improvement material, and a lower layer containing FS granulated sand,
A non-woven mat formed of a plant material is interposed between the sheet material and the roadbed layer.

このような構成とすれば、前述の人工芝敷設構造と同様の理由により、温度上昇を抑制する機能を備え、排水性、保水性及び耐久性に優れ、クッション性、衝撃緩和性も備えたものとなるが、特に、土壌材と、セメント系固化剤又は石灰と、高分子化合物系土壌改良材とを含む上層と、ＦＳ造粒砂を含む下層とで路盤層を形成したことにより、路盤層の保水量が増加するので、晴天が続く場合においても、温度上昇を抑制する機能が長期間持続する。   With such a configuration, for the same reason as the above-mentioned artificial turf laying structure, it has a function to suppress temperature rise, has excellent drainage, water retention and durability, and also has cushioning and impact relaxation properties However, in particular, the roadbed layer is formed by forming the roadbed layer with an upper layer containing a soil material, a cement-based solidifying agent or lime, and a polymer compound-based soil improvement material, and a lower layer containing FS granulated sand. Since the amount of water retained increases, the function of suppressing the temperature rise lasts for a long time even when clear weather continues.

ここで、前記不織マットとして、椰子材不織マットを用いることが望ましい。椰子材不織マットは天然素材であるため環境に悪影響を及ぼすことがなく、椰子繊維が優れた保水性、クッション性、衝撃緩和性を発揮する。また、椰子材不織マットは、軽量であり、切断容易であるため、施工性も良好である。さらに、椰子材不織マットは吸水性が良いので、路盤層中の水分を吸い上げて、蒸発させる作用に優れており、温度上昇を抑制する効果が高い。   Here, it is desirable to use an insulator mat non-woven mat as the non-woven mat. The cocoon material non-woven mat is a natural material, so it does not adversely affect the environment, and the coconut fiber exhibits excellent water retention, cushioning and impact relaxation properties. Moreover, since the insulator mat non-woven mat is light and easy to cut, the workability is also good. Furthermore, since the insulator mat non-woven mat has good water absorption, it is excellent in the action of sucking up and evaporating moisture in the roadbed layer, and has a high effect of suppressing the temperature rise.

一方、前記高分子化合物としては、アクリル酸・メタクリル酸ジメチルアミノエチル共重合物のマグネシウム塩とポリエチレンイミンとの複合体からなるものが好適である。このような高分子化合物を用いることにより、目砂層内及び路盤層内に、土粒子による団粒構造が形成されるため、透水性及び保水性が向上し、雨天時などにおける濁水の流出も防止することができる。   On the other hand, the polymer compound is preferably composed of a composite of a magnesium salt of acrylic acid / dimethylaminoethyl methacrylate copolymer and polyethyleneimine. By using such a polymer compound, aggregated structures of soil particles are formed in the mesh sand layer and the roadbed layer, thereby improving water permeability and water retention and preventing turbid water from flowing out in rainy weather. can do.

本発明により、昇温抑制機能及びクッション性、衝撃緩和性を備え、排水性、保水性及び耐久性にも優れた人工芝敷設構造を提供することができる。   According to the present invention, it is possible to provide an artificial turf laying structure that has a temperature rise suppression function, cushioning properties, and impact relaxation properties, and is excellent in drainage properties, water retention, and durability.

以下、図面に基づいて、本発明の実施の形態である人工芝敷設構造について説明する。図１は本発明の第１実施形態である人工芝敷設構造を示す垂直断面図である。   Hereinafter, an artificial turf laying structure according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a vertical sectional view showing an artificial grass laying structure according to a first embodiment of the present invention.

図１に示すように、本実施形態の人工芝敷設構造１は、基礎地盤２の上に形成された路盤層３上に椰子材不織マット６を敷設し、この椰子材不織マット６の上に、シート材５ｂに人工芝材５ａを植設して形成された人工芝５を敷設し、その人工芝材５ａが露出した状態でシート材５ｂ上に表面層４を形成して成るものである。人工芝５においては、ゴムまたは合成樹脂で形成されたシート材５ｂに多数の人工芝材５ａが植設され、シート材５ｂの、隣接する人工芝材５ａの間に相当する部分にはそれぞれ透水用の貫通孔５ｃが開設されている。表面層４はゴムチップで形成され、路盤層３は、土壌材と、セメント系固化剤と、高分子化合物系土壌改良材と、発泡ガラス材と、ＦＳ造粒砂とを含む改良路盤材で形成されている。   As shown in FIG. 1, the artificial turf laying structure 1 of the present embodiment has a cocoon material non-woven mat 6 laid on a roadbed layer 3 formed on a foundation ground 2. An artificial turf 5 formed by planting an artificial turf material 5a on the sheet material 5b is laid, and the surface layer 4 is formed on the sheet material 5b with the artificial turf material 5a exposed. It is. In the artificial turf 5, a large number of artificial turf materials 5a are planted on a sheet material 5b formed of rubber or a synthetic resin, and the portions corresponding to the space between adjacent artificial turf materials 5a of the sheet material 5b are water permeable. A through-hole 5c is provided. The surface layer 4 is formed of rubber chips, and the roadbed layer 3 is formed of an improved roadbed material including a soil material, a cement-based solidifying agent, a polymer compound-based soil improvement material, a foamed glass material, and FS granulated sand. Has been.

表面層４を形成するゴムチップは外形サイズが３〜４ｍｍ程度のチップ状資材である。また、椰子材不織マット６は天然素材である椰子の繊維を素材とするものであり、施工前は、厚さ１０ｍｍ、幅１ｍ、長さ１５ｍのロール形状の資材であり、その保水率は２００質量％〜３００質量％であるが、これに限定するものではない。   The rubber chip forming the surface layer 4 is a chip-shaped material having an outer size of about 3 to 4 mm. In addition, the insulator mat 6 is made of natural coconut fiber, and is a roll-shaped material having a thickness of 10 mm, a width of 1 m, and a length of 15 m before construction, and its water retention rate is Although it is 200 mass%-300 mass%, it is not limited to this.

また、路盤層３の組成も、特に限定するものではなく、施工条件に応じて変更することができるが、土壌材１立方メートルに対し、セメント系固化剤２０ｋｇ〜８０ｋｇ、高分子化合物系土壌改良材２リットル〜４リットル程度を添加して形成された混合物の１立方メートルに対し、発泡ガラス材４００ｋｇ〜１２００ｋｇ、ＦＳ造粒砂３００ｋｇ〜５００ｋｇ程度を添加したものが好適である。   Further, the composition of the roadbed layer 3 is not particularly limited and can be changed according to the construction conditions. However, a cement solidifying agent 20 kg to 80 kg, a polymer compound soil improver for 1 cubic meter of soil material. What added about 400-1200 kg of foam glass materials and about 300-500 kg of FS granulated sand with respect to 1 cubic meter of the mixture formed by adding about 2 liters-4 liters is suitable.

ゴムチップで形成された表面層４及び椰子材不織マット６が弾力性、透水性を有するとともに、その下方に位置する、土壌材と、セメント系固化剤又は石灰と、高分子化合物系土壌改良材と、発泡ガラス材と、ＦＳ造粒砂とを含む改良路盤材で形成された路盤層３が吸水性及び保水性を備えたものとなる。このため、人工芝敷設構造１は、優れたクッション性、衝撃緩和性、吸水性及び保水性を発揮する。   The surface layer 4 and the insulator material non-woven mat 6 formed of rubber chips have elasticity and water permeability, and are located below the soil material, cement-based solidifying agent or lime, and polymer compound-based soil conditioner. And the roadbed layer 3 formed with the improved roadbed material containing foamed glass material and FS granulated sand has water absorption and water retention. For this reason, the artificial turf laying structure 1 exhibits excellent cushioning properties, impact relaxation properties, water absorption and water retention.

従って、降雨や散水などによって人工芝５上に降り注いだ水分は速やかに表面層４及びシート材５ｂの貫通孔５ｃを通過して椰子材不織マット６に吸収、貯留され、椰子材不織マット６に貯留しきれない水分は、その下方にある路盤層３に流れ込み、その内部に貯留される。このため、人工芝５の部分の排水性は極めて良好であり、人工芝敷設構造１全体として、大量の水分を貯留することができる。   Accordingly, the moisture that has poured onto the artificial turf 5 due to rain, water spray, etc. quickly passes through the surface layer 4 and the through hole 5c of the sheet material 5b and is absorbed and stored in the insulator material non-woven mat 6, and the insulator material non-woven mat. Moisture that cannot be stored in the fluid 6 flows into the roadbed layer 3 below and is stored therein. For this reason, the drainage property of the artificial turf 5 is extremely good, and the artificial turf laying structure 1 as a whole can store a large amount of water.

晴天時の気温上昇あるいは日照によって人工芝５部分の温度が上昇すると、椰子材不織マット６及び路盤層３に保持されている水分は上方へ移動していき、表面層４内を上昇してその上面から大気中へ蒸発していく。従って、水分蒸発の際に奪われる気化熱により、人工芝５の部分及びその周囲の温度上昇を抑制することができる。   When the temperature of the artificial turf 5 increases due to a rise in temperature during sunny weather or sunshine, the moisture retained in the insulator mat 6 and the roadbed layer 3 moves upward and rises in the surface layer 4. It evaporates from the top surface into the atmosphere. Therefore, the temperature rise of the artificial turf 5 part and its surroundings can be suppressed by the heat of vaporization taken away during the evaporation of moisture.

また、路盤層３が発泡ガラス材を含むことにより、吸水性及び保水性だけでなく、優れた圧縮強度も発揮するので、従来の土層のように降雨時にぬかるんで不陸が発生することがない。また、施工後に吸水性が悪化することもないので、耐久性も優れている。なお、本実施形態では、粒径５ｍｍ〜４０ｍｍ程度の発泡ガラス材と、粒径５ｍｍ以下のＦＳ造粒砂を用いているが、これらに限定するものではない。また、椰子材不織マット６は、軽量であり、切断容易であるため、施工性も良好である。   In addition, since the roadbed layer 3 includes the foamed glass material, it exhibits not only water absorption and water retention but also excellent compressive strength. Absent. Moreover, since water absorption does not deteriorate after construction, durability is also excellent. In this embodiment, a foamed glass material having a particle size of about 5 mm to 40 mm and an FS granulated sand having a particle size of 5 mm or less are used, but the present invention is not limited to these. Moreover, since the insulator material non-woven mat 6 is lightweight and easy to cut, the workability is also good.

次に、図２を参照して、本発明の第２実施形態である人工芝敷設構造２０について説明する。人工芝敷設構造２０は、基礎地盤２の上に形成された路盤層２３上に椰子材不織マット６を敷設し、この椰子材不織マット６の上に、透水性を有するシート材５ｂに人工芝材５ａを植設して形成された人工芝５を敷設し、人工芝材５ａが露出した状態で、シート材５ｂ上に表面層４を形成して成るものである。なお、表面層４、人工芝５及び椰子材不織マット６は、図１で示したものと同じものである。本実施形態においては、路盤層２３が、土壌材と、セメント系固化剤と、高分子化合物系土壌改良材とを含む上層２３ａと、ＦＳ造粒砂を含む下層２３ｂとによって形成されている点が異なっている。   Next, with reference to FIG. 2, the artificial turf laying structure 20 which is 2nd Embodiment of this invention is demonstrated. The artificial turf laying structure 20 lays a cocoon material non-woven mat 6 on a roadbed layer 23 formed on the foundation ground 2, and a water-permeable sheet material 5 b is formed on the cocoon material non-woven mat 6. The artificial turf 5 formed by planting the artificial turf material 5a is laid, and the surface layer 4 is formed on the sheet material 5b with the artificial turf material 5a exposed. The surface layer 4, the artificial turf 5, and the insulator material non-woven mat 6 are the same as those shown in FIG. In this embodiment, the roadbed layer 23 is formed of an upper layer 23a including a soil material, a cement-based solidifying agent, and a polymer compound-based soil improvement material, and a lower layer 23b including FS granulated sand. Is different.

図２に示す構成とすることにより、第１実施形態の人工芝敷設構造１と同様、人工芝敷設構造２０は、表面層４及び人工芝５部分の排水性が良好であり、椰子材不織マット６及び路盤層２３が具備する吸水性及び保水性により、温度上昇を抑制する機能も得られる。特に、人工芝敷設構造２０の場合、土壌材と、セメント系固化剤と、高分子化合物系土壌改良材とを含む上層２３ａと、ＦＳ造粒砂を含む下層２３ｂとによって路盤層２３を形成したことにより、保水性がさらに高まるため、晴天が続く場合でも、温度上昇を抑制する機能が長期間持続する。   By adopting the configuration shown in FIG. 2, the artificial turf laying structure 20 has good drainage of the surface layer 4 and the artificial turf 5 as in the artificial turf laying structure 1 of the first embodiment, and the insulator material is non-woven. Due to the water absorption and water retention provided in the mat 6 and the roadbed layer 23, the function of suppressing the temperature rise is also obtained. In particular, in the case of the artificial turf laying structure 20, the roadbed layer 23 is formed by the upper layer 23a including the soil material, the cement-based solidifying agent, and the polymer compound-based soil improvement material, and the lower layer 23b including the FS granulated sand. As a result, the water retention is further increased, so that the function of suppressing the temperature rise lasts for a long time even when clear weather continues.

また、第１，２実施形態の路盤層３，２３を形成する際の改良土に添加する高分子化合物系土壌改良材としては、アクリル酸・メタクリル酸ジメチルアミノエチル共重合物のマグネシウム塩とポリエチレンイミンとの複合体からなるものが好適であるが、第１，２実施形態の人工芝敷設構造１，２０においては、有限会社グローバル研究所のＧＢ−２０００（商品名）を使用している。   In addition, as a polymer compound-based soil improving material added to the improved soil when forming the roadbed layers 3 and 23 of the first and second embodiments, magnesium salt of acrylic acid / dimethylaminoethyl methacrylate copolymer and polyethylene A composite made of imine is suitable, but in the artificial turf laying structures 1 and 20 of the first and second embodiments, GB-2000 (trade name) of Global Research Laboratories is used.

このような高分子化合物系土壌改良材を使用することにより、路盤層３，２３内に、土粒子による団粒構造が形成されるため、優れた透水性及び保水性を発揮するだけでなく、雨天時などにおける濁水の流出も防止することができる。また、人工芝敷設構造１，２０は保水性に優れているため、降雨の一時貯留作用により河川への流出抑制効果も得られ、防災にも有効である。   By using such a polymer compound-based soil improvement material, a aggregate structure with soil particles is formed in the roadbed layers 3 and 23, not only exhibiting excellent water permeability and water retention, It is possible to prevent muddy water from flowing out during rainy weather. In addition, since the artificial turf laying structures 1 and 20 are excellent in water retention, an effect of suppressing the outflow to the river can be obtained by the temporary storage action of rainfall, which is also effective for disaster prevention.

前述した第１，２実施形態においては表面層をゴムチップで形成しているが、この表面層を、土壌材と、セメント系固化剤又は石灰と、高分子化合物を含む土壌改良材とから成る改良土で形成することもできる。このような表面層は目砂層とも呼ばれ、吸水性、保水性を有するものとなる。   In the first and second embodiments described above, the surface layer is formed of rubber chips, but this surface layer is an improvement comprising a soil material, a cement-based solidifying agent or lime, and a soil conditioner containing a polymer compound. It can also be made of soil. Such a surface layer is also called a mesh sand layer and has water absorption and water retention.

本発明の人工芝敷設構造は、サッカーグラウンドなどの競技場や運動場あるいは屋上緑地などの構築の際に広く使用することができる。   The artificial turf laying structure of the present invention can be widely used in the construction of a stadium such as a soccer ground, an athletic field or a rooftop green space.

本発明の第１実施形態である人工芝敷設構造を示す垂直断面図である。It is a vertical sectional view showing the artificial grass laying structure which is the first embodiment of the present invention. 本発明の第２実施形態である人工芝敷設構造を示す垂直断面図である。It is a vertical sectional view showing an artificial grass laying structure which is a second embodiment of the present invention. 従来の人工芝敷設構造を示す垂直断面図である。It is a vertical sectional view showing a conventional artificial grass laying structure.

符号の説明Explanation of symbols

１，２０ 人工芝敷設構造
２ 地盤
３，２３ 路盤層
４ 表面層
５ 人工芝
５ａ 人工芝材
５ｂ シート材
５ｃ 貫通孔
６ 椰子材不織マット
２３ａ 上層
２３ｂ 下層 DESCRIPTION OF SYMBOLS 1,20 Artificial grass laying structure 2 Ground 3,23 Roadbed layer 4 Surface layer 5 Artificial grass 5a Artificial grass material 5b Sheet material 5c Through-hole 6 Insulating material non-woven mat 23a Upper layer 23b Lower layer

Claims (4)

基礎地盤上に形成された路盤層上に、透水性を有するシート材に人工芝材を植設して形成された人工芝を敷設し、前記人工芝材が露出した状態で前記シート材上に表面層を形成して成る人工芝敷設構造であって、
前記表面層がゴムチップで形成され、
前記路盤層が、土壌材と、セメント系固化剤又は石灰と、高分子化合物系土壌改良材と、発泡ガラス材と、ＦＳ造粒砂と、を含む改良路盤材で形成され、
前記シート材と前記路盤層との間に、植物素材で形成された不織マットを介在させたことを特徴とする人工芝敷設構造。 An artificial turf formed by planting artificial turf material on a water-permeable sheet material is laid on the roadbed layer formed on the foundation ground, and the artificial turf material is exposed on the sheet material. An artificial grass laying structure formed by forming a surface layer,
The surface layer is formed of a rubber chip;
The roadbed layer is formed of an improved roadbed material including a soil material, a cement-based solidifying agent or lime, a polymer compound-based soil improvement material, a foamed glass material, and FS granulated sand,
An artificial turf laying structure characterized in that a non-woven mat formed of a plant material is interposed between the sheet material and the roadbed layer. 基礎地盤上に形成された路盤層上に、透水性を有するシート材に人工芝材を植設して形成された人工芝を敷設し、前記人工芝材が露出した状態で前記シート材上に表面層を形成して成る人工芝敷設構造であって、
前記表面層がゴムチップで形成され、
前記路盤層が、土壌材と、セメント系固化剤又は石灰と、高分子化合物系土壌改良材とを含む上層及びＦＳ造粒砂を含む下層で形成され、
前記シート材と前記路盤層との間に、植物素材で形成された不織マットを介在させたことを特徴とする人工芝敷設構造。 An artificial turf formed by planting artificial turf material on a water-permeable sheet material is laid on the roadbed layer formed on the foundation ground, and the artificial turf material is exposed on the sheet material. An artificial grass laying structure formed by forming a surface layer,
The surface layer is formed of a rubber chip;
The roadbed layer is formed of an upper layer containing a soil material, a cement-based solidifying agent or lime, and a polymer compound-based soil improvement material, and a lower layer containing FS granulated sand,
An artificial turf laying structure characterized in that a non-woven mat formed of a plant material is interposed between the sheet material and the roadbed layer. 前記不織マットとして、椰子材不織マットを用いた請求項１または２記載の人工芝敷設構造。   The artificial turf laying structure according to claim 1 or 2, wherein an insulator mat nonwoven mat is used as the nonwoven mat. 前記高分子化合物が、アクリル酸・メタクリル酸ジメチルアミノエチル共重合物のマグネシウム塩とポリエチレンイミンとの複合体からなるものである請求項１〜３のいずれかに記載の人工芝敷設構造。   The artificial turf laying structure according to any one of claims 1 to 3, wherein the polymer compound is a composite of a magnesium salt of acrylic acid / dimethylaminoethyl methacrylate copolymer and polyethyleneimine.
JP2007109733A 2007-04-18 2007-04-18 Artificial turf laying structure Withdrawn JP2008266949A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010150895A (en) * 2008-12-26 2010-07-08 Shiima Consultant:Kk Ground
JP2014105508A (en) * 2012-11-28 2014-06-09 Takeshi Nakagawa Structure for laying artificial lawn
CN106218168A (en) * 2016-03-18 2016-12-14 李雅慧 A kind of composite tyre base root-resistant puncturing waterproof sheet and preparation method thereof
KR102065877B1 (en) * 2019-05-21 2020-01-13 이성림 Eco-friendly and temperature risin prevent type complex grass structure
KR102065896B1 (en) * 2019-10-22 2020-01-13 이성림 Eco-friendly artificial turf or natural shock absorbing pad for playground and its manufacturing method, construction method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010150895A (en) * 2008-12-26 2010-07-08 Shiima Consultant:Kk Ground
JP2014105508A (en) * 2012-11-28 2014-06-09 Takeshi Nakagawa Structure for laying artificial lawn
CN106218168A (en) * 2016-03-18 2016-12-14 李雅慧 A kind of composite tyre base root-resistant puncturing waterproof sheet and preparation method thereof
KR102065877B1 (en) * 2019-05-21 2020-01-13 이성림 Eco-friendly and temperature risin prevent type complex grass structure
KR102065896B1 (en) * 2019-10-22 2020-01-13 이성림 Eco-friendly artificial turf or natural shock absorbing pad for playground and its manufacturing method, construction method thereof

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