JPS58123902A - Creation of ground such as athletic field - Google Patents
Creation of ground such as athletic fieldInfo
- Publication number
- JPS58123902A JPS58123902A JP791782A JP791782A JPS58123902A JP S58123902 A JPS58123902 A JP S58123902A JP 791782 A JP791782 A JP 791782A JP 791782 A JP791782 A JP 791782A JP S58123902 A JPS58123902 A JP S58123902A
- Authority
- JP
- Japan
- Prior art keywords
- polyvinyl alcohol
- ground
- stadium
- constructing
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000386 athletic effect Effects 0.000 title description 3
- 239000002689 soil Substances 0.000 claims description 40
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 34
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 21
- 239000002344 surface layer Substances 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 9
- 239000004927 clay Substances 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000007127 saponification reaction Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- 229920003169 water-soluble polymer Polymers 0.000 claims description 4
- 229920000609 methyl cellulose Polymers 0.000 claims description 3
- 239000001923 methylcellulose Substances 0.000 claims description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 25
- 238000002156 mixing Methods 0.000 description 8
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000005445 natural material Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000012237 artificial material Substances 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 210000003127 knee Anatomy 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 235000010981 methylcellulose Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- -1 that is Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000009490 roller compaction Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
この発明は運動場や陸上競技場などの屋内・屋外の各種
競技場、更には遊歩道などのグランド造成ノブ法に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a knob method for creating grounds for various indoor and outdoor stadiums such as athletic fields and track and field stadiums, as well as for promenades.
従来、テニスコート、バレーコート、バスケットコート
、フィールドトラックなどの屋外及び屋内の運動場や競
技場、更には遊歩道などのグランドの造成方式としては
、コンクリート、アスファルト、合成樹脂などの人工材
で地表面を被覆する人工材方式と、アンツーカ、クレー
などに代表される無機質の自然鉱物質を表層土の主材と
する天然材方式の２種がある。これらの方式の内、前者
の人工林方式は全天候方式とも呼ばれ、天候に左右され
ずに使用できる利点があシ、最近では特にＦ地層をコン
クリートやアスファルトで形成し、この表層にポリウレ
タン系、アクリル系、エチレン酢酸ビニル系などの合成
樹脂層を被覆形成してなるものがよく用いられている。Traditionally, the construction method for grounds such as outdoor and indoor sports fields and stadiums such as tennis courts, volleyball courts, basketball courts, and field tracks, as well as promenades, has been to cover the ground surface with artificial materials such as concrete, asphalt, and synthetic resin. There are two types: an artificial material method that covers the soil, and a natural material method that uses inorganic natural minerals such as antuca and clay as the main material for the surface soil. Among these methods, the former artificial forest method is also called the all-weather method, and has the advantage of being usable regardless of the weather. Those formed by coating with a layer of synthetic resin such as acrylic or ethylene vinyl acetate are often used.
ところが、この種のものは、グランドの維持管理に手間
がかからないという特長を有するものの、天然材に比べ
てか
形成臀キや硬質であり、自然な感触を得られない為、競
技者が膝、脚、腰などを痛め易く、体育力学的見地や、
人間の運動本来の在り方から見て、改良や見直しの必要
性があると指摘されている。However, although this kind of material has the advantage of requiring less time and effort to maintain the ground, it is harder than natural materials and does not provide a natural feel, making it difficult for athletes to use their knees or knees. It is easy to injure the legs and lower back, and from a physical education and mechanics perspective,
It has been pointed out that there is a need for improvement and review considering the nature of human exercise.
これに対して、アンツーカやクレーなどの天然材方式で
は、自然な感触と弾性とが得られ、体育力学的な面から
も好ましいのであるが、反面、全天候型ではない為、降
雨により、水たまりやぬかるみが生じ、雨後ただちに使
用できず、また、乾燥して風が吹くと砂ぼこりや粉塵が
舞い上がる欠点があり、更に冬季、寒冷地では、土の送
排水性が悪い為に霜柱や凍結が発生し易い。また、これ
らの結果、天然材方式ではグランドの維持管理が面倒で
あるという欠点力士ある。On the other hand, using natural materials such as Antuca and clay provides a natural feel and elasticity, which is preferable from the viewpoint of athletic mechanics, but on the other hand, they are not all-weather, so they may cause puddles or puddles due to rainfall. It becomes muddy and cannot be used immediately after rain, and when it dries and the wind blows, it has the disadvantage of raising dust and sand.Furthermore, in winter and in cold regions, frost columns and freezing occur because the soil has poor water drainage. easy. Additionally, as a result, the natural material method has the drawback that maintenance and management of the ground is troublesome for sumo wrestlers.
本発明は以上の点に鑑み、グランドの主材としては、適
当な弾性と自然な感触とを得られるアンツーカやクレー
などの天然産などの無機質材を使用し、１つ、この材料
を使用したことによる前記欠点を解消して、送排水性が
良くて、雨後、直ちに使用が可能であり、冬季の霜柱の
発生や、乾燥時に於ける砂塵の舜い上りなどが少なく１
、表層が常に安定しており、また耐久性にも秀れ、グラ
ンドの維持管理が容易な運動場などの造成方法を提供せ
んとするもので、その特徴は、アンツーカやクレーなど
の無機質の表層土主材に適量のポリビニルアルコールな
どの水溶性高分子物質を配合したことにある。In view of the above points, the present invention uses natural inorganic materials such as Antuca and clay that can provide appropriate elasticity and natural feel as the main material of the ground. This eliminates the above-mentioned disadvantages caused by water drainage, has good drainage performance, can be used immediately after rain, and reduces the occurrence of frost pillars in winter and the rise of dust during drying.
The purpose of this project is to provide a method for constructing playgrounds, etc., in which the surface layer is always stable, has excellent durability, and is easy to maintain and manage. This is because the main material contains an appropriate amount of water-soluble polymeric substances such as polyvinyl alcohol.
本発明で使用する水溶性高分子物質としてはポリビニル
アルコールの他に、メチルセルロース、カルボキシメチ
ルセルロースなどが使用可能であるが、ポリビニルアル
コールが最も好ましい。またポリビニルアルコールとし
ては、その平均重合度（βが１０００以下の低いものの
方が、皮膜物質としての伸度及び可撓性の点で好ましく
、また、鹸化度は水に対する作用性及び経済性の点から
、８８±２モル％程度のいわゆる部分鹸化ポリビニルア
ルコールが適当である。In addition to polyvinyl alcohol, methyl cellulose, carboxymethyl cellulose, and the like can be used as the water-soluble polymer substance used in the present invention, but polyvinyl alcohol is most preferred. In addition, polyvinyl alcohol with a low average degree of polymerization (β of 1000 or less) is preferable in terms of elongation and flexibility as a coating material, and a degree of saponification is preferred in terms of action against water and economic efficiency. Therefore, so-called partially saponified polyvinyl alcohol having a content of about 88±2 mol% is suitable.
本発明に於けるポリビニルアルコールなどの水溶性高分
子物質の配合量は、表層上主材に対して０．１〜５．０
重量％が適当である。この配合量が０、１％より少ない
時は、所期の効果が認められない。また５％以上加λ、
ても、それ以上の作用効果がなく、経済性の点で無駁で
ある。なを、ここでの配合量は表層土主材の無水状態の
ものに対する水溶性高分子物質の重量％を意味する。配
合量の最適値は、表層土主材の種類及び水溶性高分子物
質の種類により若干異なるが、例えば、アンツーカの場
合のポリビニルアルコールの最適配合量は０．５〜２．
５重量％であり、クレーの場合のポリビニルアルコール
の最適配合量は０．５〜２．０重量％である。また、本
発明に於ける表層土主材へのポリビニルアルコールなど
の配合方式は自由であり、例えば表層土主材に粉粒体状
のポリビニルアルコ−ｙを添加して攪拌し、これを敷き
ならした後に表面から散水する方式や、或いは先ず表層
土主材のみを敷きならしておき、これにポリビニルアル
コールの水溶液を散布する方式などを自由に採用するこ
とが可能である。ただし、表層上主材に粉粒体、即ち固
体状のポリビニルアルコ−／Ｌ／を配合する場合には５
〜１５０メツシユ、更に好ましくは１０〜４０メツシュ
程度の粒状のものを用いるのが窒ましい。これは、この
範囲より細かなものや、また粒度の大きなポルビニルア
ルコール分子用すれば、表層土主材に添加して攪拌した
時に、ポリビニルアルコールを表層土主材中に均一に分
赦せるのが難しくなる為である。In the present invention, the blending amount of the water-soluble polymeric substance such as polyvinyl alcohol is 0.1 to 5.0 with respect to the main material on the surface layer.
Weight % is appropriate. When this amount is less than 0.1%, the desired effect will not be observed. Also, add 5% or more λ,
However, it has no further effect and is unquestionable in terms of economy. Note that the blending amount here means the weight percent of the water-soluble polymeric substance based on the anhydrous surface soil main material. The optimal value of the blending amount varies slightly depending on the type of surface soil main material and the type of water-soluble polymer substance, but for example, in the case of Antuca, the optimal blending amount of polyvinyl alcohol is 0.5 to 2.
5% by weight, and the optimum blending amount of polyvinyl alcohol in the case of clay is 0.5 to 2.0% by weight. In addition, in the present invention, the method of blending polyvinyl alcohol etc. into the surface layer main material is free. For example, if granular polyvinyl alcohol is added to the surface layer main material and stirred, and this is laid. It is possible to freely adopt a method in which water is sprinkled from the surface after washing the soil, or a method in which only the surface soil material is first leveled and then an aqueous solution of polyvinyl alcohol is sprinkled on it. However, if powder or granular material, that is, solid polyvinyl alcohol/L/ is blended into the main material on the surface layer, 5
It is preferable to use particles with a size of about 150 meshes, more preferably 10 to 40 meshes. This means that if you use polyvinyl alcohol molecules that are finer than this range or have larger particle sizes, when you add it to the surface soil material and stir it, you will be able to distribute the polyvinyl alcohol uniformly into the surface soil material. This is because it becomes difficult.
本発明で用いられる表層土主材としては、アンツーカ、
クレー、輝緑岩粉砕物、ゼオライト及びこれらの纒合物
などの従来から使用されている天然及び人工の全ての土
壌材を用いることができる。The main soil materials used in the present invention include Antuca,
All conventionally used soil materials, natural and artificial, can be used, such as clay, crushed diabase, zeolites, and combinations thereof.
ただし、合成樹脂は含まれず、無機質のものに限定され
る。また表層土には吸水効果及び増結効果を高める為に
塩化カルシウムや、塩化マグネシウムなどを適量配合す
ることも耐ｍｌである。However, it does not include synthetic resins and is limited to inorganic materials. It is also possible to add an appropriate amount of calcium chloride, magnesium chloride, etc. to the surface soil in order to enhance the water absorption and consolidation effects.
以上の如く、表層土主材中にポリビニルアルコールなど
の水溶性高分子物質を添加すると、通常状態ではアンツ
ーカやクレーの土壌構造が単位構造であったものが、添
加されたポルビニルアルコール分子によって土粒子間架
橋をおこし、同校構造となる。この結果、通気性、透水
性、保水性が増し、耐水触性、耐風触性がよくなる。即
ち、アンツーカ−などの表層上主材と適量のポリビニル
アルコールとを均一に混合した後、これをグランド面に
敷きならし、この上から水を散布すると、水が土中へ浸
透するのに伴って、ポリビニルアルコールが水で膨潤す
ると共に、除々に溶解滲出してアンツーカなどの土粒子
と化学作用ｆＥし、全体が同校構造化する。このような
作用が表層土中で起ると、次に土中の残留水分のみが毛
管現象で表面に滲み出し、これが乾燥して、その結果、
表層土はしっかりと固まった状態になる。なお、表層土
が固まる為には、適量の水の存在と、その後の乾燥とが
・不可欠であ、、る。ここでの乾燥は土壌水・）□
分が水分当量よりやや少ない状態となる程度であり、実
際の施工に際しては、晴天時の自然乾燥で充分である。As described above, when a water-soluble polymeric substance such as polyvinyl alcohol is added to the main material of the surface soil, the soil structure of Antuca and clay, which under normal conditions is a unit structure, becomes soil due to the added polvinyl alcohol molecules. Cross-linking occurs between particles, resulting in the same structure. As a result, air permeability, water permeability, and water retention are increased, and water contact resistance and wind resistance are improved. In other words, after uniformly mixing the main surface layer material such as Antuca with an appropriate amount of polyvinyl alcohol, spread it on the ground surface and sprinkle water on top of it, as the water permeates into the soil. As the polyvinyl alcohol swells with water, it gradually dissolves and oozes out, and chemically interacts with soil particles such as Antuca, resulting in the entire structure forming the same structure. When this kind of action occurs in the surface soil, only the remaining water in the soil oozes out to the surface by capillary action, which dries, resulting in
The surface soil becomes firmly compacted. In addition, in order for the surface soil to solidify, the presence of an appropriate amount of water and subsequent drying are essential. The drying here is such that the soil water is slightly less than the water equivalent, and for actual construction, natural drying on a sunny day is sufficient.
このように固結の為には土中でのポリビニルアルコール
の水との膨潤が必要であるが、この度合いはポリビニル
アルコールの鹸化度に関係するので、前記の如き、鹸化
度が８８±２モル％のいわゆる部分鹸化ポリビニルアル
コールが適合することになる。In this way, for consolidation, it is necessary for polyvinyl alcohol to swell with water in the soil, but this degree is related to the degree of saponification of polyvinyl alcohol, so as mentioned above, the degree of saponification is 88 ± 2 mol. % of so-called partially saponified polyvinyl alcohol will be suitable.
また、ポリビニルアルコールを水に溶がして、水溶液と
なし、これを先に天然材の表層上主材を用いて造成した
グランド面に均等に散布することも可能である。この場
合、グランド面は先にならし板やローラで締め固めてお
く方がよい。また、本発明では、従来からグランドの整
備に用いられていた塩化カルシウム、塩化マグネシウム
、塩化ナトリウムなどの塩化物をグランド面に散布する
方法を併用することも苛能である。この場合には、フレ
ーク状などの固体状の塩化物をグランドに均一に散布し
、その後、散水及びローラ転圧するか、或いは塩化物と
ポリビニルアルコールなどとの混合水溶液を作り、この
水溶液をグランドに散布し、その後、ローラ転圧を加え
るなどの方法をとることができる。なお、塩化物の配合
割合は表層土主材に対して、０．８〜０．７重量％とす
るのが適当である・
実施例１；
運動場の路盤の上に火山砂利及び砕石を１０〜１５α厚
に敷きつめて基礎を形成し、この上に表層土を８ＣＭ厚
に敷きならして、ローラで締め固めた。表層土としては
主材にアンツーカを用い、これにポリビニルアルコ−／
Ｌ／（平均粒度；２０メツシユ、鹸化度；８８モル％、
平均重合度；５００）を２重量％混合し、充分に攪拌し
たものを使用したつこのようにして作成した表層土を敷
きならした後、水を１ｍ当り８１ｇ散水し、更にローラ
転圧を加えた。その後、２日間、自然乾燥させた状態で
、表層土は堅固に締まシ、且つ適当な弾性と滑シ特性と
を備え、更に、送排水性も良好で、全ての点でアンツー
カのみで造成したものに比べて優れていた。It is also possible to dissolve polyvinyl alcohol in water to form an aqueous solution, which can be evenly spread over the ground surface previously created using a natural material as the surface layer main material. In this case, it is better to compact the ground surface first using a leveling board or rollers. Further, in the present invention, it is also useful to use a method of spraying chlorides such as calcium chloride, magnesium chloride, and sodium chloride on the ground surface, which have been conventionally used for maintenance of the ground. In this case, solid chloride such as flakes is uniformly sprinkled on the ground, and then water is sprinkled and rolled with rollers, or a mixed aqueous solution of chloride and polyvinyl alcohol is made, and this aqueous solution is applied to the ground. A method such as spraying and then applying roller rolling pressure can be used. In addition, it is appropriate that the blending ratio of chloride is 0.8 to 0.7% by weight based on the main material of the surface soil.Example 1: Volcanic gravel and crushed stone were added at 10 to 10% by weight on the roadbed of a playground. The soil was laid to a thickness of 15α to form a foundation, and on top of this, surface soil was spread to a thickness of 8cm and compacted with rollers. The main material for the surface soil is Antuca, which is combined with polyvinyl alcohol/
L/(average particle size: 20 mesh, degree of saponification: 88 mol%,
After leveling the surface soil prepared in this way using a mixture of 2% by weight of (average degree of polymerization: 500) and thorough stirring, 81g of water was sprinkled per 1m, and further roller compaction was applied. Ta. After that, after being allowed to air dry for two days, the surface soil was firmly compacted and had appropriate elasticity and slip properties.Furthermore, it also had good water drainage characteristics, and in all respects it was created using only Antuca. It was better than what I did.
次に、施工後１カ月経過した時点で、表層土及び基礎か
らなる層を５０Ｘ５０（’Ｉ１１の面積大に切り取って
、これを木枠に固定し、−１０℃の雰囲気下に２４時間
放置して凍結状況下に暴らした。その後、取出して１５
〜１８℃の常温雰囲気下に放置し、融解時の変化を観察
したが、表層がぬかるみ状態になることもなく、硬い表
面を保持していた。次に前記の試料を４０’Ｃの雰囲気
下に７日間曇らして、乾燥状態を観察した。この試料の
上で、体重６０ｋｇの人間がゴム製靴の踵で回転して、
表面破壊状態を調べたが、はとんど表面は破壊されてお
らず、またこの部分にブロアーによる噴風を当てたが、
砂ぼこりはほとんど立たなかった。そして、表面から多
量の水を散布してもぬかるみは生ぜず、優れた透水性を
有していた。Next, one month after construction, the layer consisting of the surface soil and foundation was cut into a 50x50 ('I11) area, fixed in a wooden frame, and left in an atmosphere of -10°C for 24 hours. After that, I took it out and put it in a frozen state.
It was left in an atmosphere at room temperature of ~18° C. and changes during melting were observed, but the surface layer did not become muddy and maintained a hard surface. Next, the above sample was fogged in an atmosphere of 40'C for 7 days, and the dry state was observed. On this sample, a person weighing 60 kg rotates on the heel of a rubber shoe.
We investigated the state of surface damage, but found that the surface was not completely destroyed, and although we applied a blower to this area,
There was hardly any dust. Even when a large amount of water was sprayed from the surface, no muddy appearance occurred, and it had excellent water permeability.
実施例２；
石炭ガラを１５ｃＩＩＩ厚に敷きつめて形成した基礎の
上に、クレーにポリビニルアルコ−／Ｌ／（実施例１と
同じ）を２重量％加えて攪拌した表層：：、（・
土’ｋｌｌ厚に敷きならし、この上に塩化力ｐシウムを
１ｍ当り０．８＃散布すると共に、水をｌＲ当りｇ ｋ
ｑ散水し、ローラによって締め固めた。Example 2: On a foundation formed by laying coal debris to a thickness of 15cIII, a surface layer was prepared by adding 2% by weight of polyvinyl alcohol/L/ (same as in Example 1) to clay and stirring. Lay it out to a thickness of 100 kll, sprinkle 0.8 # of p-chloride per 1 m on it, and sprinkle g k of water per 1 R.
It was sprinkled with water and compacted with a roller.
その後、２日間、自然乾燥させた状態で表層土は堅固に
締まり、且つ適当な弾性と滑り特性とを備え、送排水性
も優れていた。After that, the surface soil was left to air dry for two days, and the surface soil became firmly compacted, had appropriate elasticity and sliding properties, and had excellent drainage and drainage properties.
実施例３；
火山砂利と砕石とによって形成した基礎の上にアンツー
カを３ｃｌＲ厚に敷きならしてローラで固めた。鹸化度
；８８モル％、平均重合度；５００のポリビニルアルコ
ールで１０％水ｆｇＤを作り、これをアンツーカの上に
１ ｖｆ 当す７ ｋｔｉ均一に散布し、これにローラ
をかけて更に固めた。２日間、自然乾燥させたところ、
表層土は堅固に締まり、且つ適度の弾性と滑り特性とを
備え、更に、送排水性も優れていた。Example 3: Antuca was spread to a thickness of 3 clR on a foundation made of volcanic gravel and crushed stone and compacted with a roller. A 10% water fgD was prepared with polyvinyl alcohol having a degree of saponification of 88 mol % and an average degree of polymerization of 500, and this was uniformly spread over Antuca in an area of 7 kti (1 vf), and was further solidified by applying a roller to it. After letting it dry naturally for 2 days,
The surface soil was tightly compacted, had appropriate elasticity and sliding properties, and also had excellent drainage performance.
実施例４；
実施例１と同様に形成した基礎の上に、アンツーカに市
販の粉粒状のカルボキンメチルセルロースを１重量％加
λ４て攪拌した表層土を３１？
厚に敷きならし、この上に水を１ｍ当り８ ｋｔｉ散水
し、ローラによって締め固めた。その後、２日間、自然
乾燥させた時点で、表層土は堅固に締まり、且つ適度の
弾性と、滑り特性とを備え、史に送排水性も優れていた
。Example 4: On the foundation formed in the same manner as in Example 1, surface soil prepared by adding 1% by weight of commercially available carboquine methylcellulose to Antuca and stirring it at λ4 was added to the foundation for 31 hours. The material was spread thickly, water was sprinkled on it at a rate of 8 kti per 1 m, and the material was compacted using rollers. Thereafter, after being allowed to air dry for two days, the surface soil was firmly compacted, had appropriate elasticity and sliding properties, and had excellent drainage and drainage properties.
特 許 出 願 人 奥
昭代理人 竹田明弘Patent applicant
Akira agent Akihiro Takeda
Claims (1)
表層上の層を基礎の上に形成し、加水状態で締め固めた
後、乾燥させることを特徴とする競技場などのグランド
造成方法５２、水溶性高分子物質としてポリビニルアル
コ−／ｌ／を使用する前記特許請求の範囲第１項記載の
競技場などのグランド造成方法。 ３、表層上主材に対してポリビニルアルコールｉ ０．
１〜５．０重量％配合する前記特許請求の範囲第２項記
載の競技場などのグランド造成方法。 ４、表層上主材をアンツーカとなし、ポリビニルアルコ
−／Ｌ”ｉｏ、５〜２．５重量％配合する前記特許請求
の範囲第８項記載の競技場などのグランド造成方法。 ５、表層土主材をクレーとなし、ポリビニルアルコール
を０．５〜２．０重量％配合する前記特許請求の範囲第
３項記載の競技場などのグランド造成方法。 ６、鹸化度が８８±２モル％で、平均重合度が１０００
以下のポリビニルアルコールを使用する前記特許請求の
範囲第２項または第３項、または第４項、または第５項
記載の競技場などのグランド造成方法。 ７、粒度が５〜１５０メツシユの粒状のポリビニルアル
コールを使用し、表層土主材にこのポリビニルアルコー
ルを添加して攪拌し、この表層土を基礎の上に敷きなら
し、散水の後、締め固めて乾燥させる前記特許請求の範
囲第３項記載の競技場などのグランド造成方法。 ８、ポリビニルアルコールとして水溶液を使用し、基礎
の上には表層土主材のみを敷きつめ、これにポリビニル
アルコール水溶液を散布する前記特許請求の範囲第８項
記載の競技場などのグランド造成方法。 ９、水溶性高分子物質としてメチルセルロース又はカル
ボキシメチルセルロースを使用する前記特許請求の範囲
第１項記載の競技場などのグランド造成方法。[Claims] l. A surface layer made of an inorganic surface soil main material mixed with a water-soluble polymer substance is formed on the foundation, compacted in a hydrated state, and then dried. 52. A method for constructing a ground for a stadium or the like according to claim 1, wherein polyvinyl alcohol/l/ is used as the water-soluble polymer substance. 3. Polyvinyl alcohol i for the main material on the surface layer 0.
The method for constructing a ground for a stadium or the like according to claim 2, wherein the content is 1 to 5.0% by weight. 4. A method for constructing a ground for a stadium or the like as set forth in claim 8, wherein the main material on the surface layer is Antuca, and polyvinyl alcohol/L"io is mixed in an amount of 5 to 2.5% by weight. 5. Surface soil. The method for constructing a ground for a stadium or the like according to claim 3, wherein the main material is clay and 0.5 to 2.0% by weight of polyvinyl alcohol is blended. 6. The degree of saponification is 88±2 mol%. , the average degree of polymerization is 1000
A method for constructing a ground for a stadium or the like according to claim 2, claim 3, claim 4, or claim 5, using the following polyvinyl alcohol. 7. Use granular polyvinyl alcohol with a particle size of 5 to 150 mesh, add this polyvinyl alcohol to the main material of the surface soil, stir it, spread the surface soil on the foundation, and after watering, compact it. The method for constructing a ground such as a stadium according to claim 3, wherein the ground is dried by drying. 8. The method for constructing a ground for a stadium or the like according to claim 8, which uses an aqueous solution as polyvinyl alcohol, lays only the surface soil main material on the foundation, and sprinkles the polyvinyl alcohol aqueous solution thereon. 9. A method for constructing a ground for a stadium or the like according to claim 1, wherein methylcellulose or carboxymethylcellulose is used as the water-soluble polymeric substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP791782A JPS58123902A (en) | 1982-01-20 | 1982-01-20 | Creation of ground such as athletic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP791782A JPS58123902A (en) | 1982-01-20 | 1982-01-20 | Creation of ground such as athletic field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58123902A true JPS58123902A (en) | 1983-07-23 |
Family
ID=11678879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP791782A Pending JPS58123902A (en) | 1982-01-20 | 1982-01-20 | Creation of ground such as athletic field |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58123902A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018204243A (en) * | 2017-06-01 | 2018-12-27 | 国立大学法人宇都宮大学 | Soil improvement paving method using hydrogel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5094728A (en) * | 1973-12-22 | 1975-07-28 | ||
| JPS54152324A (en) * | 1978-05-22 | 1979-11-30 | Sanyo Kokusaku Pulp Co | Soil outerrlayer protective method |
-
1982
- 1982-01-20 JP JP791782A patent/JPS58123902A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5094728A (en) * | 1973-12-22 | 1975-07-28 | ||
| JPS54152324A (en) * | 1978-05-22 | 1979-11-30 | Sanyo Kokusaku Pulp Co | Soil outerrlayer protective method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018204243A (en) * | 2017-06-01 | 2018-12-27 | 国立大学法人宇都宮大学 | Soil improvement paving method using hydrogel |
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