JP3445755B2 - Base material for slope protection - Google Patents
Base material for slope protectionInfo
- Publication number
- JP3445755B2 JP3445755B2 JP11559899A JP11559899A JP3445755B2 JP 3445755 B2 JP3445755 B2 JP 3445755B2 JP 11559899 A JP11559899 A JP 11559899A JP 11559899 A JP11559899 A JP 11559899A JP 3445755 B2 JP3445755 B2 JP 3445755B2
- Authority
- JP
- Japan
- Prior art keywords
- base material
- slope
- slope protection
- soil
- fiber
- 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.)
- Expired - Lifetime
Links
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、法面保護用の基材
に関する。TECHNICAL FIELD The present invention relates to a base material for slope protection.
【０００２】[0002]
【従来の技術】法面の保護ならびに緑化の分野におい
て、近年、時を経て残留物を残さない腐食性の有機質繊
維が注目され、この腐食性有機質繊維を素材にして、こ
れをネット状あるいはシート状に構成して法面保護用の
基材とし、この基材によって、法面に吹き付けた植生基
材（有機堆肥や化学肥料、土壌改良材などに植物種子を
配合したもの。）を被覆する技術が実施されるに至って
いる。2. Description of the Related Art In recent years, in the fields of slope protection and greening, corrosive organic fibers, which do not leave a residue over time, have attracted attention. To form a base material for slope protection, and this base material covers the vegetation base material (organic compost, chemical fertilizer, soil conditioner, etc. mixed with plant seeds) sprayed on the slope surface. Technology has been implemented.
【０００３】この技術によれば、基材によって法面表層
土壌のエロージョンが効果的に防止されると共に、植生
基材に配合の植物種子や飛来種子による緑化が好適に達
成されるのであり、しかも、基材の有機質繊維が時を経
て生分解することから、残留物としては残らない点で好
適である。According to this technique, the erosion of the sloped surface soil is effectively prevented by the base material, and the greening by the plant seed or the flying seed compounded in the vegetation base material is suitably achieved, and moreover, Since the organic fiber of the base material biodegrades over time, it is preferable in that it does not remain as a residue.
【０００４】[0004]
【発明が解決しようとする課題】ところが、従来の技術
では、腐食性の有機質繊維が生分解して、単に残留物と
して残らないだけの属性を生かしているに過ぎず、この
機能の他に何ら特別の機能を持つものではなかったので
ある。However, in the prior art, the corrosive organic fiber is biodegraded and merely utilizes the attribute that it does not remain as a residue. In addition to this function, nothing is done. It did not have a special function.
【０００５】そこで本発明者らは、属性である腐食以外
の優れた機能を有機質繊維に併せ持たせるべく、鋭意検
討した結果、腐食性有機質繊維が多様な表面形状の孔隙
を有する点に着目して、この腐食性有機質繊維に簡単な
技術を施すことで、腐食性有機質繊維を素材とする法面
保護用の基材を、環境保全上で優れたものにすることが
できることを知見するに至ったのであり、この知見に則
って本発明は、腐食以外の優れた機能を有する法面保護
用の基材を提供することを目的としている。Therefore, the inventors of the present invention have conducted extensive studies in order to provide the organic fiber with an excellent function other than the attribute of corrosion, and as a result, have noticed that the corrosive organic fiber has pores of various surface shapes. Therefore, it was found that by applying a simple technique to this corrosive organic fiber, the base material for slope protection made of the corrosive organic fiber can be made excellent in environmental protection. Therefore, based on this finding, the present invention aims to provide a base material for slope protection having an excellent function other than corrosion.
【０００６】[0006]
【課題を解決するための手段】即ち、請求項１記載によ
る本発明の法面保護用の基材は、法面保護用の基材であ
って、腐食性有機質繊維によってネット状の法面保護用
基材の素体を構成し、この素体の繊維自体が有する多数
の孔隙ならびに繊維表面に、Ｃａ，Ｍｇ，Ｋ等のアルカ
リ金属、アルカリ土類金属またはそれらの塩あるいはそ
れらの水酸化物の微粒子を充填及び付着させて成る点に
特徴がある。That is, the slope protection base material of the present invention according to claim 1 is a slope protection base material, which is a net- shaped slope protection surface with corrosive organic fibers. Of the alkali metal such as Ca, Mg, K, or an alkaline earth metal, or a salt thereof or a hydroxide thereof, which constitutes the element body of the base material for use, and has a large number of pores and the fiber surface of the element itself. It is characterized in that it is formed by filling and adhering the fine particles of.
【０００７】請求項２記載による本発明の法面保護用の
基材は、法面保護用の基材であって、Ｃａ，Ｍｇ，Ｋ等
のアルカリ金属、アルカリ土類金属またはそれらの塩あ
るいはそれらの水酸化物の微粒子を腐食性有機質繊維の
繊維自体が有する多数の孔隙ならびに繊維表面に充填及
び付着させ、前記腐食性有機質繊維を素材にして、ネッ
ト状に構成して成る点に特徴がある。The base material for slope protection according to the second aspect of the present invention is a base material for slope protection, which is an alkali metal such as Ca, Mg, K, an alkaline earth metal or a salt thereof. It is characterized in that fine particles of these hydroxides are filled and adhered to a large number of pores of the corrosive organic fiber itself and the surface of the fiber, and the corrosive organic fiber is used as a material to form a net shape. is there.
【０００８】[0008]
【０００９】上記のＣａ，Ｍｇ，Ｋ等のアルカリ金属、
アルカリ土類金属またはそれらの塩あるいはそれらの水
酸化物の微粒子を、以下、無機微粒子と総称する。Alkali metals such as Ca, Mg and K,
Fine particles of alkaline earth metals, salts thereof or hydroxides thereof are hereinafter collectively referred to as inorganic fine particles.
【００１０】腐食性有機質繊維としては、例えばヤシの
実繊維（以下ヤシ繊維と言う。）、藁、綿、麻、ジュウ
ト、ビンロウジュ、木毛等が選択されるのであって、本
発明の基材によれば、素材を構成する繊維間の間隙や、
繊維自体が有する多数の孔隙ならびに繊維表面に、無機
微粒子による歪な形状の大小様々な凹凸や、更には、無
機微粒子が複雑に絡まって枝状に広がった無機微粒子層
が導入されることになる。As the corrosive organic fiber, for example, coconut fiber (hereinafter referred to as coconut fiber), straw, cotton, hemp, jute, areca, wood wool and the like are selected, and the base material of the present invention. According to the gap between the fibers that make up the material,
The large number of pores of the fiber itself and the surface of the fiber will introduce irregularities of various sizes, which are distorted by the inorganic fine particles, and the inorganic fine particle layer in which the inorganic fine particles are complicatedly entangled and spread in a branch shape. .
【００１１】上記構成のネット状の法面保護用基材を法
面に張設することで、法面表層土壌のエロージョンが防
止されるのであり、更に、このネット状の基材はもとよ
り、吹き付け用の基材の何れにおいても、導入された無
機微粒子層の表面積が膨大であることから、これに土壌
中の酸性物質が効率的に接して中和されることで、法面
土壌の酸性が効果的に矯正されることになる。[0011] By stretched slopes net-like slope protection substrate for the structure, and than erosion slope surface soil is prevented, further, the net-like substrate, as well as spraying Since the surface area of the introduced inorganic fine particle layer is enormous in any of the base materials for use, the acidic substance in the soil is efficiently contacted with and neutralized, thereby increasing the acidity of the sloped soil. It will be effectively corrected.
【００１２】従って、土壌の酸性が矯正されることで、
従来では植物の生育が不良であった法面でも、この法面
に良好な植生を図ることができる上に、更には、近年問
題となっている酸性雨対策にも寄与し得るのであって、
植物の生育に好適な土壌環境が造られることから、植生
による法面の保護ならびに緑化を確実にすることができ
る。Therefore, by correcting the acidity of the soil,
Conventionally, even on slopes where the growth of plants was poor, it is possible to achieve good vegetation on this slope, and further, it can contribute to measures against acid rain, which has become a problem in recent years.
Since a soil environment suitable for plant growth is created, it is possible to ensure slope protection and vegetation by vegetation.
【００１３】また、上記の無機微粒子は、土壌中の有用
微生物を誘引する効果があって、この微生物によって土
壌の改良が図れることから、植物の生育を促進させるこ
とが可能となる。Further, the above-mentioned inorganic fine particles have an effect of attracting useful microorganisms in the soil, and since the microorganisms can improve the soil, it is possible to promote the growth of plants.
【００１４】更に、上記構成の法面保護用の基材を、例
えば河川や湖沼などの水際法面に設置したり吹き付けた
りした場合は、上記の効果に加えて、多様な動植物の棲
息空間を形成できるのみならず、流水中の富栄養化物質
である窒素やリンあるいはＣＯＤを除去することができ
る。Furthermore, when the base material for slope protection having the above-mentioned structure is installed or sprayed on a waterside slope such as a river or a lake, in addition to the above effects, a habitat space for various animals and plants can be obtained. Not only can it be formed, but nitrogen, phosphorus or COD which are eutrophication substances in running water can be removed.
【００１５】即ち、無機微粒子として、例えばＣａ（Ｏ
Ｈ）2 を導入すれば、腐食性有機質繊維の水中微生物と
の親和性が増強されて、この微生物の働きによって、水
中の富栄養化物質である窒素やリン、ＣＯＤ等が消化さ
れると共に、Ｃａ（ＯＨ）2自体も水中のリンと反応し
て、リンの除去効果も発揮することから、水質改善も期
待することができるのであって、植物の生育に好適な土
壌環境ならびに河川、湖沼環境の改善・維持効果が高い
ものとなる。That is, as the inorganic fine particles, for example, Ca (O
When H) 2 is introduced, the affinity of the corrosive organic fiber with the aquatic microorganisms is enhanced, and the action of the microorganisms digests eutrophication substances such as nitrogen, phosphorus, and COD, and Since Ca (OH) 2 itself also reacts with phosphorus in water and exerts a phosphorus removing effect, it can be expected to improve water quality, and is suitable for plant growth in soil environment and river / lake environment. Will be highly effective in improving and maintaining.
【００１６】しかも、本発明による法面保護用の基材
は、腐食性の有機質繊維が主体であって、これが生分解
することで有機質繊維が残留物として残らないことに加
えて、無機微粒子が環境に負荷を与える物質でないこと
から、自然環境を良好に保つことができるのである。Moreover, the base material for slope protection according to the present invention is mainly composed of corrosive organic fibers, and the biodegradation of the organic fibers does not leave the organic fibers as a residue. Since it is not a substance that exerts a load on the environment, it is possible to maintain a good natural environment.
【００１７】[0017]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図１は法面Ｎの保護ならびに緑化
の施工状況を示し、この施工に用いられる法面保護用の
基材１は、腐食性の有機質繊維２によってネット状の法
面保護用基材の素体３を構成し、かつ、図２に示すよう
に、この素体３に無機微粒子（Ｃａ，Ｍｇ，Ｋ等のアル
カリ金属、アルカリ土類金属またはそれらの塩あるいは
それらの水酸化物の微粒子である。）４を導入させて成
る。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a construction situation of protecting slopes N and greening. A slope protection base material 1 used in this construction is a net- shaped slope protection base material body made of corrosive organic fibers 2. 2, and as shown in FIG. 2, inorganic fine particles (fine particles of an alkali metal such as Ca, Mg, K or the like, an alkaline earth metal or a salt thereof or a hydroxide thereof are contained in the element body 3). .) 4 is introduced.
【００１８】詳しくは、腐食性の有機質繊維２として、
ヤシ繊維、藁、綿、麻、ジュウト、ビンロウジュ、木毛
等を選択し、中でもヤシ繊維（これの長さは１００〜２
００ｍｍ位で、直径は０．１〜１ｍｍ程度である。）２
は、図２に顕微鏡写真を図面化して示したように、膨大
な数の孔隙ａを有することから特に好適であって、この
実施の形態では、上記の腐食性有機質繊維２の少なくと
も一種を用いて紐状体を形成し、これを編織してネット
状の素体３を構成している。Specifically, as the corrosive organic fiber 2,
Palm fiber, straw, cotton, hemp, jute, areca, wood wool, etc. are selected. Among them, palm fiber (the length of which is 100-2
The diameter is about 0.1 to 1 mm at about 00 mm. ) 2
2 is particularly preferable because it has a huge number of pores a as shown in the micrograph of FIG. 2. In this embodiment, at least one of the corrosive organic fibers 2 is used. To form a string-like body, which is knitted and woven to form a net-shaped element body 3.
【００１９】そして、このネット状の素体３を、無機微
粒子４を水等の液体に分散させた分散液に浸漬させた
り、或いは、分散液をネット状素体３にスプレーしたり
して、これらの充填あるいは付着の手段によって、無機
微粒子４をネット状素体３の繊維間の間隙ならびに孔隙
ａを含む繊維表面に導入し、これを乾燥させて法面保護
用の基材１を構成している。Then, the net-shaped element body 3 is immersed in a dispersion liquid in which the inorganic fine particles 4 are dispersed in a liquid such as water, or the dispersion liquid is sprayed on the net-shaped element body 3, By the means for filling or adhering these, the inorganic fine particles 4 are introduced into the fiber surface of the net-shaped element body 3 including the spaces between the fibers and the pores a, and dried to form the base material 1 for slope protection. ing.
【００２０】[0020]
【００２１】また、腐食性有機質繊維２によってネット
状の法面保護用基材の素体３を構成し、この素体３に無
機微粒子４を導入させて、これを法面保護用の基材１と
しているが、腐食性有機質繊維２の孔隙ａを含む繊維表
面に、上記の充填あるいは付着の手段によって予め無機
微粒子４を導入させた上で、この腐食性有機質繊維２を
素材にして、法面保護用の基材１をネット状に構成して
もよいのである。Further, the corrosive organic fiber 2 makes the net
Configure element 3 shaped for slope protection for substrates, by introducing the inorganic fine particles 4 in the body 3, which has as a base material 1 for slope protection, pore corrosive organic fibers 2 The inorganic fine particles 4 are introduced into the surface of the fiber containing a by the above-mentioned filling or adhesion means in advance, and the corrosive organic fiber 2 is used as a raw material to construct the slope protection base material 1 in a net shape. You may do it.
【００２２】上記の各種構成の基材１による法面Ｎの保
護ならびに緑化の施工に際して、現地の埋土種子や飛来
種子を利用して、現地の生態系に馴染む法面Ｎの緑化を
図るならば、この基材１をそのまま法面Ｎに張設すれば
よく、法面Ｎの早期の緑化を図るならば、好ましくは郷
土種の植物種子を法面Ｎに播種するか、有機堆肥、化学
肥料、植物性繊維、保水剤、土壌改良材などの少なくと
も一種に植物種子を配合した植生基材を法面Ｎに吹き付
けた上で、この法面Ｎを被覆するように、上記の基材１
を張設すればよいのである。In order to protect the slope N by using the base material 1 having the above-mentioned various constitutions and to construct the greenery, if the local soil buried seeds and flying seeds are used, the slope N that is adapted to the local ecosystem can be planted. For example, the base material 1 may be stretched as it is on the slope N, and if greening of the slope N is aimed at early, preferably plant seeds of local species are sown on the slope N, or organic compost, chemical After spraying a vegetation base material in which plant seeds are mixed with at least one kind of fertilizer, plant fiber, water retention agent, soil improving material, etc. onto the slope N, the above base material 1 is coated so as to cover the slope N.
Should be installed.
【００２３】或いは、図１に示すように、有機堆肥、化
学肥料、植物性繊維、保水剤、土壌改良材などの少なく
とも一種と植物種子ｂとを配合した植生基体５を、植物
種子ｂの発芽・生育が可能な薄綿状のマットや薄紙又は
水溶性のシート材６に保持させて、このシート材６を基
材１の裏面側に貼着したり、図示は省略するが、上記の
植生基体５を、例えばポリビニルアルコールなどの水溶
性糊剤によって、直接的に基材１に保持させたり、上記
の植生基体５を水溶性のシート材間に挟着した所謂張芝
体を基材１の裏面側に貼着したりして、これらによる基
材１を法面Ｎに張設してもよいのである。Alternatively, as shown in FIG. 1, a vegetation substrate 5 in which at least one kind of organic compost, chemical fertilizer, plant fiber, water retention agent, soil conditioner and the like and plant seed b are mixed is used to germinate plant seed b. -A thin cotton mat or thin paper or a water-soluble sheet material 6 capable of growing is held, and the sheet material 6 is attached to the back side of the base material 1 or, although not shown, the vegetation substrate 5 described above. Is held on the base material 1 directly with a water-soluble sizing agent such as polyvinyl alcohol, or a so-called tension grass body in which the vegetation base material 5 is sandwiched between water-soluble sheet materials is provided on the back surface side of the base material 1. The base material 1 made of these may be stretched on the slope N by sticking.
【００２４】上記構成のネット状の法面保護用基材１を
法面Ｎに張設することで、法面表層土壌のエロージョン
が基材１によって効果的に防止されると共に、植生基体
５に配合の植物種子ｂや飛来種子による緑化が好適に達
成されるのであり、加えて、基材１の腐食性有機質繊維
２が年を経て生分解することから、基材１が残留物とし
て法面Ｎに残ることはなく、かつ、無機微粒子４が環境
に負荷を与える物質でないことから、自然環境を良好に
保つことができる。By stretching the net- shaped slope protection base material 1 having the above-described structure on the slope N, the erosion of the slope surface soil is effectively prevented by the base material 1 and the vegetation base 5 is formed. The greening by the blended plant seeds b and the flying seeds is suitably achieved, and in addition, since the corrosive organic fibers 2 of the base material 1 biodegrade over time, the base material 1 remains as a slope. Since the inorganic fine particles 4 do not remain in N, and the inorganic fine particles 4 are not substances that exert a load on the environment, a good natural environment can be maintained.
【００２５】しかも、法面保護用基材１に導入の無機微
粒子４が、膨大な表面積の無機微粒子層を繊維表面に形
成することから、これに土壌中の酸性物質が効率的に接
して中和されることで、法面土壌の酸性が効果的に矯正
されることになり、従って、植物の生育が不良であった
法面Ｎでも良好な植生を図ることができると共に、酸性
物質の中和機能を有することは即ち、酸性雨対策にも寄
与し得るのである。Moreover, since the inorganic fine particles 4 introduced into the slope protection base material 1 form an inorganic fine particle layer having an enormous surface area on the fiber surface, the acidic substance in the soil is efficiently contacted with the medium. By being harmonized, the acidity of the slope soil can be effectively corrected, and therefore, good vegetation can be achieved even on the slope N where the growth of the plant was poor, Having a sum function can also contribute to acid rain countermeasures.
【００２６】更に、無機微粒子４が土壌中の有用微生物
を誘引して、この微生物によって土壌が改良されること
から、植物の生育が促進されるのであり、総じて、本発
明による法面保護用の基材１によれば、植物の生育に好
適な土壌環境が造られることから、植生による法面Ｎの
保護ならびに緑化が好適に達成されるのである。Further, since the inorganic fine particles 4 attract useful microorganisms in the soil and the soil is improved by the microorganisms, the growth of plants is promoted. Since the base material 1 creates a soil environment suitable for plant growth, protection of the slope N by vegetation and greening are suitably achieved.
【００２７】具体的に、腐食性有機質繊維２としてヤシ
繊維を選択して、このヤシ繊維によってシート状素体３
を不織布状のマットに形成し、この素体３の５００ｇ／
ｍ2を石灰乳に２〜５時間浸漬させて、これを引き上
げ、乾燥させたところ、Ｃａ（ＯＨ）2 の約１００ｇが
充填及び付着された法面保護用の基材１が得られたので
あり、これを酸性土壌（ｐＨ４．５）の法面Ｎに張設し
たところ、２週間後の法面表層土壌のｐＨが５．５〜
６．０の植生可能な領域にまで中和していることが確認
された。Specifically, coconut fiber is selected as the corrosive organic fiber 2, and the coconut fiber is used to form the sheet-shaped body 3.
Is formed into a non-woven mat, and this element body 3 500 g /
When m 2 was dipped in lime milk for 2 to 5 hours, pulled up, and dried, about 100 g of Ca (OH) 2 was filled and adhered, so that a base material 1 for slope protection was obtained. Yes, and when this was stretched on the slope N of the acidic soil (pH 4.5), the pH of the slope surface soil after 2 weeks was 5.5.
It was confirmed that the neutralization was carried out to a vegetation area of 6.0.
【００２８】従って、この法面保護用の基材１を用い
て、これに植生基体５を保持させたシート材６を貼着
し、これを酸性土壌の法面Ｎに張設したり、植物種子配
合の植生基体を酸性土壌の法面Ｎに吹き付け散布した上
で、この上面を上記の法面保護用の基材１によって被覆
すれば、法面土壌の酸性が矯正されることから、酸性土
壌の法面Ｎであっても、植生の良好な生育を期すること
ができる。Therefore, using this slope protection base material 1, a sheet material 6 holding a vegetation substrate 5 is attached to the slope protection base material 1, and the sheet material 6 is stretched over the slope surface N of the acidic soil or the plant If the vegetation substrate containing seed is sprayed on the slope N of the acidic soil and then the upper surface is covered with the slope protection base material 1, the acidity of the slope soil is corrected. Even on the slope N of soil, good growth of vegetation can be expected.
【００２９】図３は基材１の吹き付けによる法面Ｎの保
護ならびに緑化の施工状況を示しており、この施工に用
いられる基材１は、腐食性の有機質繊維２に無機微粒子
４を導入して、これを粉末または切断物と成し、又は、
腐食性の有機質繊維２を粉末または切断物と成して、こ
れに無機微粒子４を導入し、そして、有機堆肥、化学肥
料、植物性繊維、保水剤、土壌改良材などの少なくとも
一種と植物種子ｂとを配合した植生基体５と、上記の粉
末または切断物の腐食性有機質繊維２とを混合して成
る。FIG. 3 shows the state of protection and greening of the slope N by spraying the base material 1. In the base material 1 used for this construction, inorganic fine particles 4 are introduced into corrosive organic fibers 2. And this is made into powder or cuttings, or
At least one kind of organic compost, chemical fertilizer, vegetable fiber, water retention agent, soil conditioner, and plant seed are prepared by forming corrosive organic fiber 2 into powder or a cut product, and introducing inorganic fine particles 4 into the powder or cut product. The vegetation substrate 5 containing b is mixed with the corrosive organic fiber 2 of the above powder or cut product.
【００３０】法面Ｎの保護ならびに緑化に際しては、必
要に応じて法面Ｎにネット１０を張設した上で、法面Ｎ
を被覆するように基材１を吹き付けるのであって、図１
に示した基材１と同様の作用・効果を期することができ
る。When protecting and greening the slope N, the net 10 is stretched on the slope N as necessary, and then the slope N is
The substrate 1 is sprayed so as to cover
It is possible to expect the same effects and advantages as those of the base material 1 shown in FIG.
【００３１】即ち、腐食性の有機質繊維２が残留物とし
て法面Ｎに残ることがなく、かつ、無機微粒子４が環境
に負荷を与える物質でないことから、自然環境を良好に
保つことができ、しかも、酸性土壌の効果的な矯正と微
生物の繁殖による土壌改良とが達成されるのであって、
基材１の吹き付けによって植物の生育に好適な土壌環境
が早期に造られることで、植生による法面Ｎの保護なら
びに緑化が好適に達成される。That is, since the corrosive organic fiber 2 does not remain as a residue on the slope N, and the inorganic fine particles 4 are not substances that exert a load on the environment, a good natural environment can be maintained, Moreover, effective correction of acidic soil and soil improvement by breeding of microorganisms are achieved,
By spraying the base material 1 to quickly create a soil environment suitable for plant growth, protection of the slope N by vegetation and greening are suitably achieved.
【００３２】尚、上記構成の基材１を法面Ｎに吹き付け
た上で、上記したネット状の基材１によって、吹き付け
基材１を被覆する緑化形態をとってもよい。The base material 1 having the above structure may be sprayed on the slope N, and then the sprayed base material 1 may be covered with the net- shaped base material 1 described above.
【００３３】図４は河川水際（その他、湖沼などの水
際）の法面Ｎの保護ならびに緑化の施工状況を示してお
り、この施工に用いられる法面保護用の基材１は、上記
したネット状の素体（植物種子と必要に応じて肥料等と
を直接的に付着保持させたものや、張芝体や緑化マット
などを保持させたものを含むことは言うまでもない。）
３と、それぞれ無機微粒子４を導入させた腐食性有機質
繊維２と紐状体７とを用いて、例えば次のように構成し
ている。FIG. 4 shows the state of protection and greening of the slope N at the water's edge of the river (in addition, at the water's edge such as lakes and marshes). The slope protection base material 1 used in this construction is the above-mentioned net. Jo of body (or that is deposited directly hold the optionally with plant seeds fertilizers, contain those obtained by holding the like sodding body and greening mat of course.)
3 and the corrosive organic fiber 2 into which the inorganic fine particles 4 are introduced and the string 7 are used, for example, as follows.
【００３４】即ち、腐食性有機質繊維２をネット状の素
体３で巻き包んで、これを紐状体７で固縛し、或いは、
図示はしないが、ネット状の素体３をロール状に巻き付
けて、これを紐状体７で固縛し、又は、腐食性有機質繊
維２そのものを紐状体７によって束ねて、例えば直径２
０〜５０ｃｍ×長さ４〜５ｍの棒状基材１を構成してい
るのである。That is, the corrosive organic fiber 2 is wrapped around the net- shaped element body 3 and fixed by the string-shaped body 7, or
Although not shown, a net- shaped element body 3 is wound in a roll shape and fixed to it with a string-shaped body 7, or the corrosive organic fibers 2 themselves are bundled with the string-shaped body 7 to have, for example, a diameter of 2
This constitutes the rod-shaped base material 1 having a length of 0 to 50 cm and a length of 4 to 5 m.
【００３５】上記構成の棒状基材１を、河川水際の法面
Ｎに沿わせて設置すると共に、流れ止めの例えば杭８を
打設し、かつ、必要に応じて、基材１と法面Ｎとの間に
客土９を投入することで、河川水際の法面Ｎの保護なら
びに緑化の施工を完了するのである。The rod-shaped base material 1 having the above-mentioned structure is installed along the slope N at the river water side, and, for example, piles 8 for preventing flow are laid, and if necessary, the base material 1 and the slope surface. By throwing in the soil 9 between N and N, the protection of the slope N at the river water and the construction of greenery are completed.
【００３６】この際、基材１に植物種子を保持させるな
らば、これを郷土種の水生植物の種子を選択することが
好適であり、かつ、必要に応じて客土９を投入したなら
ば、更には、基材１が安定したならば、これらにヨシや
ショウブ、ガマなどの根株を移植することが好ましい。At this time, if the base material 1 is made to hold plant seeds, it is preferable to select the seeds of the aquatic plants of the native species, and if the soil 9 is added if necessary. Furthermore, if the base material 1 becomes stable, it is preferable to transplant root stocks such as reed, shovel, and cattail into these.
【００３７】上記の施工によって、河川水際の表層土壌
のエロージョンが効果的に防止されると共に、基材１を
植生床にして水生植物などが植生することで、河川水際
の法面Ｎの保護ならびに緑化が達成されるのであり、加
えて、法面土壌の酸性が矯正されると共に、酸性雨対策
にも寄与し得ることは勿論、土壌中の有用微生物の誘引
によって土壌が改良されることで、植物の生育に好適な
土壌環境が造られることは既述した通りである。By the above construction, the erosion of the surface soil at the river water is effectively prevented, and the base material 1 is used as a vegetation floor to vegetate aquatic plants, thereby protecting the slope N at the river water. Greening is achieved, and in addition to correcting the acidity of the slope soil, it can contribute to measures against acid rain, and of course, by improving the soil by attracting useful microorganisms in the soil, As described above, a soil environment suitable for plant growth is created.
【００３８】一方、基材１の水に浸っている部分では、
無機微粒子４による膨大な接水面積の薄層が存すること
から、かつ、腐食性有機質繊維２が微生物の親和性が高
いことも相乗して、ここに水質浄化に必要な多様な有効
微生物にとって恰好の棲息環境が形成されることにな
る。On the other hand, in the portion of the base material 1 immersed in water,
The presence of a thin layer with a huge water contact area due to the inorganic fine particles 4 and the fact that the corrosive organic fiber 2 has a high affinity for microorganisms synergize with it, which is ideal for various effective microorganisms required for water purification. Habitat environment will be formed.
【００３９】従って、多様な微生物の働きによって流水
中のＣＯＤを除去できる上に、水中のＳＳ（浮遊物質）
の吸着面でも優れたものとなり、更には、流水中の富栄
養化物質である窒素やリンなども、例えばＣａ、Ｍｇ、
Ｋなどの無機微粒子４によって捕捉できるのであって、
窒素濃度やリン濃度を下げることが可能となる。Therefore, COD in running water can be removed by the action of various microorganisms, and SS (suspended matter) in water can be removed.
Is also excellent in the adsorption surface of, and further, such as nitrogen and phosphorus, which are eutrophication substances in running water, such as Ca, Mg,
Since it can be captured by the inorganic fine particles 4 such as K,
It is possible to reduce the nitrogen concentration and phosphorus concentration.
【００４０】即ち、無機微粒子４として、例えばＣａ
（ＯＨ）2 を導入すれば、腐食性有機質繊維２の微生物
との親和性が更に増強されて、この微生物の働きによっ
て、水中の富栄養化物質である窒素やリン、ＣＯＤ等が
消化されると共に、Ｃａ（ＯＨ）2 自体も水中のリンと
反応して、リンの除去効果も発揮することから、水質改
善も期待することができるのであって、植物の生育に好
適な土壌環境ならびに河川、湖沼環境の改善・維持効果
が高いものとなる。That is, as the inorganic fine particles 4, for example, Ca
When (OH) 2 is introduced, the affinity of the corrosive organic fiber 2 with microorganisms is further enhanced, and the action of these microorganisms digests nitrogen, phosphorus, COD, etc., which are eutrophication substances in water. At the same time, Ca (OH) 2 itself also reacts with phosphorus in the water to exert a phosphorus removing effect, so that water quality improvement can be expected, and a soil environment and river suitable for plant growth, The effect of improving and maintaining the lake environment will be high.
【００４１】具体的には、腐食性の有機質繊維２として
ヤシ繊維を選択して、このヤシ繊維を０．１％のＣａ
（ＯＨ）2 溶液に３時間程度浸漬させ、これを引き上げ
て、乾燥させたところ、ヤシ繊維重量の２〜４％のＣａ
（ＯＨ）2 が、孔隙ａを含む繊維表面に吸着集積したこ
とが確認された。Specifically, coconut fiber is selected as the corrosive organic fiber 2, and this coconut fiber is added with 0.1% Ca.
When immersed in a (OH) 2 solution for about 3 hours, pulled up and dried, Ca of 2-4% of the weight of coconut fiber was obtained.
It was confirmed that (OH) 2 was adsorbed and accumulated on the fiber surface containing the pores a.
【００４２】このようにして無機微粒子４を導入させた
繊維２によって、ネット状の素体３を形成し、かつ、こ
の素体３を用いて棒状の基材１を構成し、この棒状の基
材１を河川水際の法面Ｎに設置したところ、ＣＯＤと窒
素とを除去率８０％以上で除去でき、リンについては除
去率８５％以上で除去できた。In this way, the fibers 2 having the inorganic fine particles 4 introduced therein form the net- shaped element body 3, and the element-shaped body 3 is used to form the rod-shaped base material 1. When the material 1 was installed on the slope N near the river water, COD and nitrogen could be removed at a removal rate of 80% or more, and phosphorus could be removed at a removal rate of 85% or more.
【００４３】この除去率の向上について検討したとこ
ろ、繊維表面に微生物や藻類などの多様な動植物の恰好
の棲息環境が形成されて、ここで多様な微生物が繁殖し
ていることが確認されたのであり、結論としては、ＣＯ
Ｄ、窒素、リンの除去率の向上は、これらとＣａ（Ｏ
Ｈ）2 とが単に化学的に結合しただけでなく、微生物群
の働きによるものと想定される。As a result of studying the improvement of the removal rate, it was confirmed that a habitat environment suitable for various animals and plants such as microorganisms and algae was formed on the fiber surface, and various microorganisms were propagated there. Yes, in conclusion, CO
The improvement of the removal rate of D, nitrogen and phosphorus is
It is presumed that H) 2 is not only chemically bound, but is also due to the action of microbial groups.
【００４４】上記の河川水際などの法面Ｎの保護ならび
に緑化の施工に際して、図５に示すように、無機微粒子
４を導入させた腐食性有機質繊維２の多数本を、例えば
紐状にして水中で漂わせるように、棒状基材１の表面部
に取り付けて、これを河川水際の法面Ｎに設置すれば、
有機質繊維２が水中で漂ったり浮遊したりすることで、
流水中の富栄養化物質との接触効率が高くなることか
ら、水質の浄化能力がアップし、加えて、稚魚や微小生
物の棲息環境を改善できる点で好適である。As shown in FIG. 5, a corrugated organic fiber 2 having inorganic fine particles 4 introduced therein is made into a string, for example, in the form of a string, to protect the slope N at the waterside of the river and to carry out greening. If it is attached to the surface of the rod-shaped base material 1 and installed on the slope N at the river water,
As the organic fiber 2 floats or floats in water,
Since the contact efficiency with the eutrophication substance in the running water is high, the water purification ability is improved, and in addition, it is preferable in that the habitat environment of the fry and the small organisms can be improved.
【００４５】[0045]
【発明の効果】以上説明したように、本発明による法面
保護用の基材によれば、繊維表面に膨大な表面積の無機
微粒子層が形成されて、土壌中の酸性物質が中和される
ことから、法面土壌の酸性が効果的に矯正されることに
なり、植物の生育が不良であった法面でも良好な植生を
図ることができる上に、酸性雨対策にも寄与し得るもの
となる。As described above, according to the base material for slope protection according to the present invention, an inorganic fine particle layer having an enormous surface area is formed on the fiber surface to neutralize acidic substances in soil. Therefore, the acidity of the slope soil can be effectively corrected, and good vegetation can be achieved even on slopes where plant growth was poor, and it can also contribute to acid rain countermeasures. Becomes
【００４６】また、無機微粒子が土壌中の有用微生物を
誘引して土壌が改良されることで、植物の生育を促進さ
せることが可能となり、全体として、植物の生育に好適
な土壌環境が造られることから、植生による法面の保護
ならびに緑化を確実にすることができる。Further, since the inorganic fine particles attract useful microorganisms in the soil to improve the soil, it becomes possible to promote the growth of the plant, and as a whole, a soil environment suitable for growing the plant is created. Therefore, it is possible to ensure the protection of slopes and greening by vegetation.
【００４７】そして、上記構成の法面保護用の基材を例
えば河川の水際法面に設置した場合は、上記の効果に加
えて、多様な動植物の棲息空間を形成できるのみなら
ず、流水中の富栄養化物質である窒素やリンあるいはＣ
ＯＤが除去されることから、水質改善も期待することが
できるのであって、植物の生育に好適な土壌環境ならび
に河川環境の改善・維持効果が高くなり、しかも、腐食
性の有機質繊維体が主であることから、法面保護用基材
が残留物として残らないことに加えて、無機微粒子が環
境に負荷を与える物質でないことから、自然環境を良好
に保つことができるのである。In addition to the above-mentioned effects, when the base material for protecting the slope having the above-mentioned structure is installed on the slope at the water's edge, for example, in addition to forming the habitat space of various plants and animals, it can be used in running water. , Eutrophication substances such as nitrogen, phosphorus and C
Since OD is removed, improvement of water quality can be expected, and the effect of improving and maintaining the soil environment and river environment suitable for plant growth is high, and the corrosive organic fiber is mainly used. Therefore, the slope protection base material does not remain as a residue, and since the inorganic fine particles are not a substance that exerts an environmental load, a good natural environment can be maintained.
【００４８】即ち、本発明によれば、残留物として残ら
ない機能に加えて、環境保全上で優れた機能を有する法
面保護用の基材が提供されるのである。That is, according to the present invention, there is provided a base material for slope protection which has an excellent function in terms of environmental protection in addition to the function of not remaining as a residue.
【図１】法面の保護ならびに緑化の施工状況を示す説明
図である。FIG. 1 is an explanatory diagram showing a construction state of slope protection and greening.
【図２】顕微鏡写真を図面化し、かつ、その一部を取り
出して拡大図示したヤシ繊維表面の模式図である。FIG. 2 is a schematic view of the surface of a coconut fiber, in which a micrograph is shown as a drawing, and a part thereof is taken out and enlarged.
【図３】基材の吹き付けによる法面の保護ならびに緑化
の施工状況を示す説明図である。FIG. 3 is an explanatory view showing a construction state of slope protection and greening by spraying a base material.
【図４】河川水際などの法面の保護ならびに緑化の施工
状況を示す説明図である。[Fig. 4] Fig. 4 is an explanatory diagram showing a construction situation of protection of slopes such as river waters and greening.
【図５】水中で漂わせるように、有機質繊維を棒状基材
の表面部に取り付けた別の実施の形態による法面保護用
基材の断面図である。FIG. 5 is a cross-sectional view of a slope protection substrate according to another embodiment in which organic fibers are attached to the surface of a rod-shaped substrate so that they can be floated in water.
１…法面保護用の基材、２…腐食性有機質繊維、３…素
体、４…無機微粒子。1 ... Base material for slope protection, 2 ... Corrosive organic fibers, 3 ... Element body, 4 ... Inorganic fine particles.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 川崎 仁士 岡山県津山市高尾590番地の１ 日本植 生株式会社内 (56)参考文献 特開 平８−56479（ＪＰ，Ａ) 特開 平11−93073（ＪＰ，Ａ) 特開2000−4667（ＪＰ，Ａ) 特開 平11−318204（ＪＰ，Ａ) 特開 平６−303850（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) E02D 17/20 102 A01G 1/00 303 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hitoshi Kawasaki 1 590 Takao, Tsuyama City, Okayama Prefecture Nippon Vegetation Co., Ltd. (56) References JP-A-8-56479 (JP, A) JP-A-11- 93073 (JP, A) JP 2000-4667 (JP, A) JP 11-318204 (JP, A) JP 6-303850 (JP, A) (58) Fields investigated (Int. Cl. 7) , DB name) E02D 17/20 102 A01G 1/00 303
Claims (2)
質繊維によってネット状の法面保護用基材の素体を構成
し、この素体の繊維自体が有する多数の孔隙ならびに繊
維表面に、Ｃａ，Ｍｇ，Ｋ等のアルカリ金属、アルカリ
土類金属またはそれらの塩あるいはそれらの水酸化物の
微粒子を充填及び付着させて成る法面保護用の基材。1. A slope protection base material comprising a net- shaped slope protection base material body made of corrosive organic fibers, and having a large number of pores and fibers which the fiber itself has. A base material for slope protection, which is obtained by filling and adhering fine particles of an alkali metal such as Ca, Mg and K, an alkaline earth metal, a salt thereof or a hydroxide thereof on the surface.
ｇ，Ｋ等のアルカリ金属、アルカリ土類金属またはそれ
らの塩あるいはそれらの水酸化物の微粒子を腐食性有機
質繊維の繊維自体が有する多数の孔隙ならびに繊維表面
に充填及び付着させ、前記腐食性有機質繊維を素材にし
て、ネット状に構成して成る法面保護用の基材。 2. A base material for slope protection, comprising Ca, M
Fine particles of an alkali metal such as g and K, an alkaline earth metal, a salt thereof or a hydroxide thereof are filled and adhered to a large number of pores of the corrosive organic fiber itself and the surface of the fiber to form the corrosive organic substance. A base material for slope protection, which is made of fiber and formed into a net shape .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11559899A JP3445755B2 (en) | 1999-04-23 | 1999-04-23 | Base material for slope protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11559899A JP3445755B2 (en) | 1999-04-23 | 1999-04-23 | Base material for slope protection |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003099700A Division JP2003301465A (en) | 2003-04-02 | 2003-04-02 | Base material for protecting slope face |
| JP2003099682A Division JP2003261942A (en) | 2003-04-02 | 2003-04-02 | Slope protection base material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000303473A JP2000303473A (en) | 2000-10-31 |
| JP3445755B2 true JP3445755B2 (en) | 2003-09-08 |
Family
ID=14666597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11559899A Expired - Lifetime JP3445755B2 (en) | 1999-04-23 | 1999-04-23 | Base material for slope protection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3445755B2 (en) |
-
1999
- 1999-04-23 JP JP11559899A patent/JP3445755B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000303473A (en) | 2000-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Schories et al. | Germination and anchorage of Enteromorpha spp. in sediments of the Wadden Sea | |
| JP2007217973A (en) | Red soil runoff preventive method | |
| JP4358833B2 (en) | Planting base | |
| JP4948945B2 (en) | Restoration, creation and maintenance methods for biodegradable eel nursery sheets and eelgrass beds | |
| JP2008193917A (en) | Sea algal reef for gelidium amansii | |
| JP3445755B2 (en) | Base material for slope protection | |
| JP3128565B2 (en) | Greening method of flooded slope forming porous buffer layer | |
| JP2003261942A (en) | Slope protection base material | |
| KR101326152B1 (en) | Plantation roll charging stuffing materials with acrylic typed composition, and vegetation basement board with acrylic typed composition and afforestation method using thereof | |
| JP2003301465A (en) | Base material for protecting slope face | |
| EP1452637A1 (en) | Functional plant fiber, a water-improving material, and a soil-protective material | |
| JP2002239577A (en) | Functional coirs, water quality improving material and soil protection material | |
| JP4766535B2 (en) | How to create a pseudo-algae | |
| JPH06205620A (en) | Method for preparing zostera zone and seeding base using the method | |
| JP3047171B2 (en) | Submerged slope greening method by spraying water purification base material | |
| JP2787264B2 (en) | Slope greening method | |
| KR100587127B1 (en) | Restoration of disturbed seagrass habitats using coated seeds | |
| JP3910858B2 (en) | Block product for natural environment improvement, floating body, and natural environment improvement method | |
| JPH09279585A (en) | Planting vegitative mat and greening construction method using planting vegetative mat | |
| JP3400841B2 (en) | Living floor | |
| JP3794623B2 (en) | Diatom production method and apparatus | |
| JP2626742B2 (en) | Vegetation mesh | |
| JPH11247156A (en) | Greening method for slope in impoundment ponding using antierosive sheet | |
| JP2004073109A (en) | Carbon fiber sheet for raising eelgrass seedling and method for raising eelgrass zone | |
| JPH07138957A (en) | Vegetation material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080627 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090627 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090627 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100627 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110627 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120627 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130627 Year of fee payment: 10 |
|
| EXPY | Cancellation because of completion of term |