JP4047310B2 - Reinforced earth structure - Google Patents

Reinforced earth structure Download PDF

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JP4047310B2
JP4047310B2 JP2004245027A JP2004245027A JP4047310B2 JP 4047310 B2 JP4047310 B2 JP 4047310B2 JP 2004245027 A JP2004245027 A JP 2004245027A JP 2004245027 A JP2004245027 A JP 2004245027A JP 4047310 B2 JP4047310 B2 JP 4047310B2
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soil
reinforced soil
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俊介 島田
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強化土エンジニヤリング株式会社
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本願発明は補強土構造物に関し、例えば道路や宅地などに面する擁壁などとして構築される。   The present invention relates to a reinforced earth structure, and is constructed as a retaining wall facing a road or a residential land, for example.

例えば図１０は、道路などに面する擁壁として構築された補強土構造物の一例を示し、図において、符号２０は転圧しつつ所定の高さに構築された盛土、２１はこの盛土２０の先端部に複数段に積層され、盛土２０の先端側を崩壊しないように保持する壁面材、そして符号２２は盛土２０内に複数層に埋設され、かつ壁面材２１に連結され、盛土層２０の沈下、移動、流失等を防止するとともに壁面材２１を盛土２０の先端部に固定する盛土補強材である。
特開昭５６−１６７３０号公報 For example, FIG. 10 shows an example of a reinforced earth structure constructed as a retaining wall facing a road or the like. In the figure, reference numeral 20 denotes a bank built up to a predetermined height while rolling, and 21 denotes a bank of the bank 20. A wall surface material that is stacked in a plurality of stages at the front end portion and that holds the front end side of the embankment 20 so as not to collapse, and a reference numeral 22 is embedded in the embankment 20 in a plurality of layers and connected to the wall surface material 21. The embankment reinforcing material prevents the settlement, movement, runoff, and the like and fixes the wall surface material 21 to the tip of the embankment 20.
JP-A-56-16730

しかし、壁面材２１は主に鉄筋コンクリート製のパネルまたはブロックとして成形され非常に重いため、一枚一枚または一個一個積層する作業は困難を強いられ、特に、壁面パネルは相当大きな土圧を受けることから、充分な強度を持たせるために相当厚く成形され、重量がさらに増して運搬、設置等の取り扱いが非常に困難である等の課題があった。   However, since the wall material 21 is mainly formed as a reinforced concrete panel or block and is very heavy, it is difficult to laminate one by one or one by one, and particularly, the wall panel is subjected to considerable earth pressure. Therefore, there is a problem that the film is formed to have a considerable thickness in order to have sufficient strength, the weight is further increased, and handling such as transportation and installation is very difficult.

本願発明は以上の課題を解決するためになされたもので、特に現地で大量に発生する掘削土などを有効に利用して、道路に面する擁壁などの補強土構造物を低コストでかつ容易に構築することができる補強土構造物を提供することを目的とする。   The present invention has been made to solve the above-mentioned problems. Particularly, by effectively using excavated soil generated in large quantities on site, a reinforced soil structure such as a retaining wall facing a road can be obtained at low cost. An object is to provide a reinforced earth structure that can be easily constructed.

請求項１記載の補強土構造物は、複数のセルに仕切られた補強土用枠体内に盛土を充填して形成された複数の補強土ブロックを複数層に積層し、その背面側に複数の盛土補強材を前記補強土ブロックに定着しつつ複数層に敷設し、かつ盛土を充填してなる補強土構造物において、前記補強土用枠体は樹脂または瀝青材を含浸させた紙、不織布または布からなる二枚の帯状基材を積層すると共に縫い糸で所定間隔おきに結合し、かつ当該結合部間を帯状基材の面外方向に拡径することにより盛土充填用のセルを複数有して形成され、前記盛土補強材はジオテキスタイルまたは帯状基材であって、前記補強土用枠体の帯状基材に巻きかけて定着してあることを特徴とするものである。   The reinforced soil structure according to claim 1 is formed by laminating a plurality of reinforced soil blocks formed by filling embankments in a reinforced soil frame partitioned into a plurality of cells in a plurality of layers, and a plurality of reinforced soil blocks on the back side. In the reinforced soil structure in which the embankment reinforcing material is laid in a plurality of layers while being fixed to the reinforced soil block and is filled with embankment, the reinforced soil frame is made of paper, nonwoven fabric or impregnated with resin or bitumen Two belt-like base materials made of cloth are laminated and joined at predetermined intervals with sewing threads, and the plurality of cells for filling are filled by expanding the diameter between the joint portions in the out-of-plane direction of the belt-like base material. The embankment reinforcing material is a geotextile or a belt-like base material, and is wound around and fixed to the belt-like base material of the reinforcing earth frame.

本願発明は、現地で大量に発生する掘削土などを有効に活用し、道路などに面する擁壁などの補強土構造物を低コストで容易に構築することができるものであり、特に補強土用枠体は紙、不織布、布などからなる帯状基材に樹脂または瀝青材を含浸して形成されているため、枠体として必要な可とう性と自立性をほどよく有し、また非常に軽量で取り扱いの容易な土木用資材といえるものである。さらに、帯状基材の表面に植生マットを添え付ける等の方法によって簡単に緑化することもできる。   The present invention can effectively construct a reinforced soil structure such as a retaining wall facing a road or the like by effectively utilizing a large amount of excavated soil generated in the field, and is particularly reinforced soil. Since the frame body is formed by impregnating a belt-like base material made of paper, non-woven fabric, cloth, etc. with resin or bitumen material, it has the flexibility and independence necessary for the frame, and it is very It is a lightweight and easy-to-handle civil engineering material. Furthermore, it can be easily greened by a method such as attaching a vegetation mat to the surface of the belt-like substrate.

帯状基材どうしの結合が縫い糸、または縫い糸と接着剤によって行われ、溶接や連結金具が使用されないため帯状基材どうしの結合が容易で補強土用枠体を容易に製作することができる。
また、補強土用枠体の現地への搬入の際やストックの際などは、例えば図１(ｃ)に図示するように、補強土用枠体を扁平な状態に押し潰しておき、施工の際に例えば図１(ｂ)に図示するように伸展させて用いることができるため取り扱いが容易である。 The band-like base materials are joined together with a sewing thread, or a sewing thread and an adhesive, and welding or connecting metal fittings are not used, so that the belt-like base materials can be easily joined to each other and a reinforced soil frame can be easily manufactured.
In addition, when the reinforced soil frame is brought into the field or stocked, the reinforced soil frame is squeezed into a flat state as shown in FIG. In this case, for example, it can be extended and used as shown in FIG.

請求項２記載の補強土構造物は、請求項１記載の補強土構造物において、補強土ブロックの近傍に金網またはジオテキスタイルが複数層に敷設してあることを特徴とするものである。   A reinforced soil structure according to claim 2 is characterized in that, in the reinforced soil structure according to claim 1, a wire mesh or geotextile is laid in a plurality of layers in the vicinity of the reinforced soil block.

請求項３記載の補強土構造物は、請求項１または２記載の補強土構造物において、補強土用枠体内に盛土として植生土、モルタル、軽量モルタル、発泡モルタル、ソイルセメント、流動化土、発泡ウレタン、発泡スチロールまたはフライアッシュモルタルが充填されてなることを特徴とするものである。   The reinforced soil structure according to claim 3 is the reinforced soil structure according to claim 1 or 2, wherein vegetation soil, mortar, lightweight mortar, foamed mortar, soil cement, fluidized soil, It is characterized by being filled with urethane foam, polystyrene foam or fly ash mortar.

また、樹脂または瀝青材(アスファルト、タール、ピッチ等)の含浸量により帯状基材の可とう性と自立性、さらには透水性を自由に調整することができ、特に１０g/ｍ2 〜５０g/ｍ2 量の範囲が盛土を充填して転圧する際の衝撃に充分耐え得る剛性と浸透した雨水を速やかに排水可能な排水性を有し、また非常に経済的といえる。
なお、熱可塑性樹脂には、例えばポリエチレン、ポリプロピレン、ポリ塩化ビニル等を用いることができ、熱硬化性樹脂には、例えばフェノール樹脂、エポキシ樹脂などを用いることができる。 Further, the flexibility and self-supporting property of the belt-like base material, and further the water permeability can be freely adjusted by the amount of impregnation of resin or bituminous material (asphalt, tar, pitch, etc.), especially 10 g / m 2 to 50 g / The range of m 2 amount has sufficient rigidity to withstand the impact when filling and rolling the embankment and has the ability to drain drained rainwater quickly and can be said to be very economical.
For example, polyethylene, polypropylene, polyvinyl chloride, or the like can be used as the thermoplastic resin, and a phenol resin, an epoxy resin, or the like can be used as the thermosetting resin.

請求項４記載の補強土構造物は、請求項１〜３のいずれかに記載の補強土構造物において、結合部には自立可能な剛性を有する量の樹脂を含浸させ、拡径部には１０g/ｍ2 〜５０g/ｍ2 量の熱硬化性樹脂または熱可塑性樹脂を含浸させることを特徴とするものである。 The reinforced earth structure according to claim 4 is the reinforced earth structure according to any one of claims 1 to 3, wherein the joint portion is impregnated with an amount of resin having a rigidity capable of self-supporting, and the enlarged diameter portion is impregnated. is characterized in that the impregnating 10g / m 2 ~50g / m 2 weight of thermosetting resin or thermoplastic resin.

請求項５記載の補強土構造物は、請求項１〜４のいずれかに記載の補強土構造物において、複数の補強土用枠体をセットバックさせながら複数層に積層し、各補強土用枠体内に盛土を充填してなることを特徴とするものである。   A reinforced earth structure according to claim 5 is the reinforced earth structure according to any one of claims 1 to 4, wherein a plurality of reinforced earth frames are stacked in a plurality of layers while being set back, and each reinforced earth structure is used. The frame body is filled with embankment.

請求項６記載の補強土構造物は、請求項１〜５のいずれかに記載の補強土構造物において、盛土補強材の反対側端部は、地山に定着してあることを特徴とするものである。   The reinforced earth structure according to claim 6 is the reinforced earth structure according to any one of claims 1 to 5, wherein the opposite end of the embankment reinforcing material is fixed to a natural ground. Is.

本願発明は、現地で大量に発生する掘削土などを有効に利用して、道路に面する擁壁などの補強土構造物を非常に低コストでかつ容易に構築することができ、また軽量化により耐震性にも優れている。   The invention of the present application makes it possible to construct a reinforced soil structure such as a retaining wall facing a road easily and at a very low cost by effectively using a large amount of excavated soil generated in the field. It is also excellent in earthquake resistance.

図１〜図４は、本願発明に係る補強土構造物の一例を示し、図において、複数の補強土ブロック１が複数層に積層され、その背面側に盛土２が入念に転圧しながら充填され、かつ盛土２内に複数の盛土補強材３が複数層に布設されている。   1 to 4 show an example of a reinforced soil structure according to the present invention. In the drawing, a plurality of reinforced soil blocks 1 are laminated in a plurality of layers, and a bank 2 is filled while carefully rolling on the back side thereof. A plurality of embankment reinforcements 3 are laid in a plurality of layers in the embankment 2.

補強土ブロック１は補強土用枠体４内に現地で大量に発生する盛土２を充填することにより形成され、また補強土ブロック１は上段になるにつれて徐々に後退し、階段状に積層されている。   The reinforced soil block 1 is formed by filling the reinforced soil frame 4 with a large amount of embankment 2 generated locally, and the reinforced soil block 1 is gradually retracted and stacked in a staircase shape as it goes up. Yes.

盛土補強材３は各段の補強土ブロック１ごと、または一段ないし数段おきに布設され、また各盛土補強材３は補強土ブロック１の補強土用枠体４の帯状基材(後述する)に巻き掛けることにより補強土ブロック１に結合されている。   The embankment reinforcing material 3 is laid for each reinforced soil block 1 or every other tier or several tiers, and each embankment reinforcing material 3 is a belt-like base material (described later) of the reinforced soil frame 4 of the reinforced soil block 1. It is connected to the reinforced soil block 1 by being wound around.

ここで、特に補強土用枠体（以下「枠体」という）４は紙、不織布、または布等から所定幅、所定長さに形成された２枚または４枚の帯状基材４ａ，４ａを重ね合わせるとともに、縫い糸、または縫い糸と接着剤の両方で所定間隔おきに結合し(以下「結合部分」を「結合部４ｂ」という)、かつ結合部４ｂ，４ｂ 間(以下、「拡径部４ｃ」という)を帯状基材４ａ，４ａの面外方向に拡径することにより、拡径部４ｃが盛土を充填可能な正六角形またはひし形のセル４ｄをなすように形成されている。   Here, in particular, the reinforced soil frame (hereinafter referred to as “frame”) 4 includes two or four belt-like substrates 4a and 4a formed with a predetermined width and a predetermined length from paper, nonwoven fabric, cloth, or the like. At the same time, they are joined at predetermined intervals with sewing thread or both sewing thread and adhesive (hereinafter referred to as “joining part 4b”) and between joining parts 4b and 4b (hereinafter referred to as “expanded diameter part 4c”). Is expanded in the out-of-plane direction of the belt-like base materials 4a and 4a, so that the enlarged diameter portion 4c is formed to form a regular hexagonal or rhombic cell 4d that can be filled with embankment.

また、結合部４ｂ，４ｂと拡径部４ｃに熱可塑性樹脂または熱硬化性樹脂（以下「樹脂」という）が含浸され、特に結合部４ｂには充分な量の樹脂が含浸され、拡径部４ｃには１０g/ｍ2 〜５０g/ｍ2 量の樹脂が含浸されている。これにより、結合部４ｂは特に透水性はないが、大きな自立性と可撓性を有し、一方拡径部４ｃは自立性と可撓性、さらに透水性を有している。 Further, the coupling portions 4b, 4b and the enlarged diameter portion 4c are impregnated with a thermoplastic resin or a thermosetting resin (hereinafter referred to as “resin”), and in particular, the coupling portion 4b is impregnated with a sufficient amount of resin, 10g / m 2 ~50g / m 2 of resin is impregnated in the 4c. Thereby, although the connection part 4b does not have water permeability in particular, it has big self-supporting property and flexibility, while the enlarged diameter part 4c has self-supporting property, flexibility, and water permeability.

なお、拡径部４ｃの含浸量が１０g/ｍ2 未満だと剛性が小さく充分な自立性を確保できない。また、拡径部４ｃの含浸量が５０g/ｍ2 を超えると透水性が低く充分な排水機能が得られず、一般に１０g/ｍ2 〜５０g/ｍ2 以内で自立性、可撓性、さらに透水性（ｋ＞１０-1ｃｍ／ｓ）を有する。 If the impregnation amount of the enlarged diameter portion 4c is less than 10 g / m 2 , the rigidity is small and sufficient self-supporting property cannot be ensured. Further, impregnation of the enlarged diameter portion 4c exceeds 50 g / m 2 when the water permeability sufficient draining function low can not be obtained, generally 10g / m 2 ~50g / m 2 within at autonomy, flexibility, further It has water permeability (k> 10 -1 cm / s).

結合部４ｂと拡径部４ｃがこのように形成されていることにより、枠体４は各セル４ｄ内に盛土２を投入して転圧する際の衝撃にも充分耐えることができ、またセル４ｄ内に浸透した雨水が拡径部４ｃから速やかに排水されるため、枠体４が盛土２の重みで変形することもない。   Since the coupling portion 4b and the enlarged diameter portion 4c are formed in this way, the frame body 4 can sufficiently withstand the impact when the embankment 2 is put into each cell 4d and rolled, and the cell 4d. Since the rainwater that has penetrated into the inside is quickly drained from the enlarged diameter portion 4 c, the frame body 4 is not deformed by the weight of the embankment 2.

また、結合部４ｂを縫い糸のみで、または縫い糸と接着剤の両方で結合することで、結合部４ｂと拡径部４ｃの両方に透水性を保持させることができ、また結合部４ｂを強固に結合可能なだけでなく、接着剤の節約にもなる。   Further, by joining the connecting portion 4b with only the sewing thread or with both the sewing thread and the adhesive, both the connecting portion 4b and the enlarged diameter portion 4c can be kept water permeable, and the connecting portion 4b can be made strong. Not only can it be joined, it also saves adhesive.

盛土補強材３は、補強土用枠体４と同様に樹脂を含浸させた帯状基材または、盛土補強材として一般に用いられているジオテキスタイルや金網類などが使用されている。   As the embankment reinforcing material 3, a belt-like base material impregnated with a resin as in the reinforcing earth frame 4, or a geotextile or a wire mesh generally used as a embankment reinforcing material is used.

なお、枠体４の各セル４ｄ内に現地で大量に発生する採掘土の他、軽量モルタル、発泡モルタル、発泡ウレタン、発泡スチロール、フライアッシュモルタル、あるいはソイルセメント等を充填してもよい。また、枠体４の表面部に緑化マットを設置して緑化を図ることもできる。   In addition to the mining soil generated in large quantities in each cell 4d of the frame body 4, light mortar, foamed mortar, foamed urethane, polystyrene foam, fly ash mortar, or soil cement may be filled. In addition, a greening mat can be installed on the surface of the frame body 4 for greening.

図５〜図８は、補強土構造物の他の例を示し、図において、特に補強土用枠体(以下「枠体」という)５は、２枚ないし３枚の帯状基材５ａ，５ａを平行に延在し、この隣接する帯状基材５ａ，５ａ間に複数の連結基材５ｂを所定間隔おきに配置するとともに、その両端を帯状基材５ａ，５ａに縫い糸、または縫い糸と接着剤の両方で結合することにより盛土を充填可能なセル５ｄを複数備えて形成されている。   5 to 8 show other examples of the reinforced soil structure. In the figure, the reinforced soil frame body (hereinafter referred to as “frame body”) 5 is composed of two to three belt-like substrates 5a and 5a. Are arranged in parallel, and a plurality of connecting base materials 5b are arranged at predetermined intervals between the adjacent belt-like base materials 5a and 5a, and both ends thereof are sewn to the belt-like base materials 5a and 5a, or a sewing thread and an adhesive. Are formed with a plurality of cells 5d that can be filled with the embankment.

また、帯状基材５ａと連結基材５ｂとの結合部５ｃに充分な量の樹脂が含浸され、それ以外の部分に１０g/ｍ2 〜５０g/ｍ2 量の含浸樹脂が含浸されている。なお、連結基材５ｂは例えば図８(ｂ)に図示するように帯状基材５ａの長手方向に交互にずらして(千鳥配置)配置されていてもよい。 Further, strip-like base material 5a and a sufficient amount of resin to bond portion 5c of the connecting substrate 5b is impregnated, 10g / m 2 ~50g / m 2 of impregnating resin is impregnated in the other portions. In addition, the connection base material 5b may be arrange | positioned by shifting alternately (zigzag arrangement) to the longitudinal direction of the strip | belt-shaped base material 5a, for example, as shown in FIG.8 (b).

盛土補強材３は各段または複数段の補強度ブロック１、または補強土用枠体５の帯状基材５ａに巻き掛けて定着されている。例えば図５(ａ)，(ｂ)に図示する例の場合、盛土補強材３は二段の補強土用枠体５の帯状基材５ａに巻き掛けて定着され、図６(ａ)に図示する例の場合、盛土補強材３は複数段の補強土ブロック１に巻き掛けて定着されている。   The embankment reinforcing material 3 is wound around and fixed to the stepped or multi-stage reinforcing block 1 or the belt-like base material 5 a of the reinforcing earth frame 5. For example, in the example shown in FIGS. 5 (a) and 5 (b), the embankment reinforcing material 3 is wound around the belt-like base material 5a of the two-stage reinforcing earth frame 5, and is shown in FIG. 6 (a). In the case of the example, the embankment reinforcing material 3 is wound around a plurality of reinforcing soil blocks 1 and fixed.

また、図９(ａ)，(ｂ)は、同じく補強土構造物の変形例を示し、特に各段の補強土用枠体４がセットバックして積層され、かつ各補強土用枠体４内に盛土２が充填されている。また、各盛土補強材３の反対側の端部は地山にアンカー部材７によってそれぞれ定着されている。   9 (a) and 9 (b) show a modification of the reinforced soil structure, and in particular, the reinforced soil frames 4 at each stage are set back and stacked, and each reinforced soil frame 4 The embankment 2 is filled inside. Moreover, the edge part on the opposite side of each embankment reinforcement 3 is each being fixed to the natural ground by the anchor member 7. FIG.

なお、いずれの例においても、補強土ブロック１の近傍に盛土補強材３とは別にジオテキスタイルや金網網などからなる盛土補強材６を複数層に布設することで、補強土ブロック１と盛土２表層部の一体化を図ることができる。   In any of the examples, the reinforcing soil block 1 and the embankment 2 surface layer can be provided by laying the embankment reinforcing material 6 made of geotextile or wire mesh in a plurality of layers in addition to the embankment reinforcing material 3 in the vicinity of the reinforcing soil block 1. The parts can be integrated.

本願発明は、現地で大量に発生する掘削土などを有効に利用し、擁壁などの補強土構造物を低コストで容易に構築することができる。   The present invention can effectively use excavated soil generated in large quantities on site, and can easily construct a reinforced soil structure such as a retaining wall at low cost.

(ａ)は補強土構造物の一例を示す一部斜視図、(ｂ)，(ｃ)は補強土用枠体を示し、(ｂ)はその一部斜視図、(ｃ)は扁平な状態に畳まれた状態を示す補強土用枠体の一部斜視図である。(a) is a partial perspective view showing an example of a reinforced soil structure, (b) and (c) are reinforced soil frames, (b) is a partial perspective view thereof, and (c) is a flat state. It is a partial perspective view of the reinforced earth frame which shows the state folded by. (ａ)は補強土構造物の一例を示す一部斜視図、(ｂ)，(ｃ)は補強土用枠体を示し、(ｂ)はその一部斜視図、(ｃ)は扁平な状態に畳まれた状態を示す補強土用枠体の一部斜視図である。(a) is a partial perspective view showing an example of a reinforced soil structure, (b) and (c) are reinforced soil frames, (b) is a partial perspective view thereof, and (c) is a flat state. It is a partial perspective view of the reinforced earth frame which shows the state folded by. (ａ)，(ｂ)は補強土用枠体の一例を示し、(ａ)はその一部斜視、(ｂ)は扁平な状態に畳まれた状態を示す補強土用枠体の一部斜視図である。(a), (b) shows an example of a reinforced soil frame, (a) is a partially perspective view thereof, (b) is a partially perspective view of a reinforced soil frame body shown in a flat state. FIG. (ａ)，(ｂ)は補強土用枠体の一例を示し、(ａ)はその一部斜視、(ｂ)は扁平な状態に畳まれた状態を示す補強土用枠体の一部斜視図である。(a), (b) shows an example of a reinforced soil frame, (a) is a partially perspective view thereof, (b) is a partially perspective view of a reinforced soil frame body shown in a flat state. FIG. (ａ)，(ｂ)は補強土構造物の一例を示す一部斜視図である。(a), (b) is a partial perspective view which shows an example of a reinforced earth structure. 補強土構造物の一例を示す一部縦断面図である。It is a partial longitudinal cross-sectional view which shows an example of a reinforced earth structure. (ａ)，(ｂ)は補強土用枠体の一例を示し、(ａ)はその一部斜視、(ｂ)は扁平な状態に畳まれた状態を示す補強土用枠体の一部斜視図である。(a), (b) shows an example of a reinforced soil frame, (a) is a partially perspective view thereof, (b) is a partially perspective view of a reinforced soil frame body shown in a flat state. FIG. (ａ)は補強土構造物の一例を示す一部斜視図、(ｂ)，(ｃ)は補強土用枠体を示し、(ｂ)はその一部斜視図、(ｃ)は扁平な状態に畳まれた状態を示す補強土用枠体の一部斜視図である。(a) is a partial perspective view showing an example of a reinforced soil structure, (b) and (c) are reinforced soil frames, (b) is a partial perspective view thereof, and (c) is a flat state. It is a partial perspective view of the reinforced earth frame which shows the state folded by. (ａ)は補強土構造物の一例を示す一部縦断面図、(ｂ)は盛土補強材とアンカー部材を示す一部平面図である。(a) is a partial longitudinal cross-sectional view which shows an example of a reinforced earth structure, (b) is a partial top view which shows an embankment reinforcing material and an anchor member. 従来の補強土構造物の一例を示す一部縦断面図である。It is a partial longitudinal cross-sectional view which shows an example of the conventional reinforced earth structure.

符号の説明Explanation of symbols

１ 補強土ブロック
２ 盛土
３ 盛土補強材
４ 枠体(補強土用枠体)
５ 枠体(補強土用枠体)
６ 盛土補強材
７ アンカー部材
1 Reinforced soil block 2 Embankment 3 Embankment reinforcement 4 Frame (frame for reinforced soil)
5 Frame (frame for reinforced soil)
6 Filling reinforcement 7 Anchor member

Claims (6)

複数のセルに仕切られた補強土用枠体内に盛土を充填して形成された複数の補強土ブロックを複数層に積層し、その背面側に複数の盛土補強材を前記補強土ブロックに定着しつつ複数層に敷設し、かつ盛土を充填してなる補強土構造物において、前記補強土用枠体は樹脂または瀝青材を含浸させた紙、不織布または布からなる二枚の帯状基材を積層すると共に縫い糸で所定間隔おきに結合し、かつ当該結合部間を帯状基材の面外方向に拡径することにより盛土充填用のセルを複数有して形成され、前記盛土補強材はジオテキスタイルまたは帯状基材であって、前記補強土用枠体の帯状基材に巻きかけて定着してあることを特徴とする補強土構造物。 A plurality of reinforced soil blocks formed by filling the reinforced soil frame divided into a plurality of cells in a plurality of layers are laminated in a plurality of layers, and a plurality of embankment reinforcing materials are fixed to the reinforced soil block on the back side thereof. In a reinforced soil structure that is laid in multiple layers and filled with embankment, the reinforced soil frame is formed by laminating two strip-shaped substrates made of paper, nonwoven fabric, or cloth impregnated with resin or bitumen. sewing thread in attached at predetermined intervals, and is formed with a plurality of cells for embankment filling by diameter between the coupling part in an out-of-plane direction of the strip-like base material as well as the banking reinforcement geotextile or A reinforced earth structure, which is a belt-like base material, which is fixed by being wound around the belt-like base material of the reinforced earth frame . 補強土ブロックの近傍に金網またはジオテキスタイルが複数層に敷設してあることを特徴とする請求項１記載の補強土構造物。 The reinforcing earth structure according to claim 1 , wherein a wire mesh or geotextile is laid in a plurality of layers in the vicinity of the reinforcing earth block . 補強土用枠体内に盛土として植生土、モルタル、軽量モルタル、発泡モルタル、ソイルセメント、流動化土、発泡ウレタン、発泡スチロールまたはフライアッシュモルタルが充填されてなることを特徴とする請求項１または２記載の補強土構造物。   The reinforced soil frame is filled with vegetation soil, mortar, lightweight mortar, foamed mortar, soil cement, fluidized soil, urethane foam, polystyrene foam or fly ash mortar as fills. Reinforced earth structure. 結合部には自立可能な剛性を有する量の樹脂を含浸させ、拡径部には１０g/ｍ2 〜５０g/ｍ2 量の熱硬化性樹脂または熱可塑性樹脂を含浸させることを特徴とする請求項１〜３のいずれかに記載の補強土構造物。 According to the coupling portion is impregnated with a quantity of resin having a self-sustainable stiffness, the enlarged diameter portion, wherein the impregnating 10g / m 2 ~50g / m 2 weight of thermosetting resin or a thermoplastic resin Item 4. A reinforced earth structure according to any one of Items 1 to 3. 複数の補強土用枠体をセットバックさせながら複数層に積層し、各補強土用枠体内に盛土を充填してなることを特徴とする請求項１〜４のいずれかに記載の補強土構造物。   The reinforced soil structure according to any one of claims 1 to 4, wherein a plurality of reinforced soil frames are stacked in a plurality of layers while being set back, and each reinforced soil frame is filled with embankments. object. 盛土補強材の反対側端部は、地山に定着してあることを特徴とする請求項１〜５のいずれかに記載の補強土構造物。   The reinforced earth structure according to any one of claims 1 to 5, wherein an opposite end portion of the embankment reinforcing material is fixed to a natural ground.
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